that the file readline.c has been split into multiple files.
* bind.c, complete.c, dispay.c, isearch.c, parens.c, rldefs.h,
rltty.c, search.c signals.c, tilde.c, tilde.h, xmalloc.c: New files.
COPYING
ChangeLog
Makefile.in
-configure.bat
+bind.c
chardefs.h
+complete.c
config
+configure.bat
configure.in
+display.c
doc
emacs_keymap.c
examples
funmap.c
history.c
history.h
+isearch.c
keymaps.c
keymaps.h
+parens.c
readline.c
readline.h
+rldefs.h
+rltty.c
+search.c
+signals.c
sysdep-aix.h
sysdep-irix.h
sysdep-norm.h
sysdep-obsd.h
sysdep-sco.h
sysdep-sysv4.h
+tilde.c
+tilde.h
vi_keymap.c
vi_mode.c
+xmalloc.c
Things-to-lose:
+Sat Jan 15 19:36:12 1994 Per Bothner (bothner@kalessin.cygnus.com)
+
+ Merge in changes from bash-1.13. The most obvious one is
+ that the file readline.c has been split into multiple files.
+ * bind.c, complete.c, dispay.c, isearch.c, parens.c, rldefs.h,
+ rltty.c, search.c signals.c, tilde.c, tilde.h, xmalloc.c: New files.
+
Sat Dec 11 16:29:17 1993 Steve Chamberlain (sac@thepub.cygnus.com)
* readline.c (rl_getc): If GO32, trim high bit from getkey,
LOCAL_INCLUDES = -I$(srcdir)/../
-CSOURCES = readline.c history.c funmap.c keymaps.c vi_mode.c \
- emacs_keymap.c vi_keymap.c
+# The name of the main library target.
+LIBRARY_NAME = libreadline.a
+
+# The C code source files for this library.
+CSOURCES = readline.c funmap.c keymaps.c vi_mode.c parens.c \
+ rltty.c complete.c bind.c isearch.c display.c signals.c \
+ emacs_keymap.c vi_keymap.c history.c tilde.c xmalloc.c
+
+# The header files for this library.
+HSOURCES = readline.h rldefs.h chardefs.h keymaps.h history.h \
+ posixstat.h tilde.h
+
+OBJECTS = readline.o vi_mode.o funmap.o keymaps.o parens.o search.o \
+ rltty.o complete.o bind.o isearch.o display.o signals.o \
+ history.o tilde.o xmalloc.o
-HSOURCES = readline.h chardefs.h history.h keymaps.h
SOURCES = $(CSOURCES) $(HSOURCES)
DOCUMENTATION = readline.texi inc-read.texi \
THINGS_TO_TAR = $(SOURCES) $(SUPPORT)
+FLAGS_TO_PASS = \
+ "prefix=$(prefix)" \
+ "exec_prefix=$(exec_prefix)" \
+ "against=$(against)" \
+ "MAKEINFO=$(MAKEINFO)" \
+ "INSTALL=$(INSTALL)" \
+ "INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \
+ "INSTALL_DATA=$(INSTALL_DATA)"
+
+SUBDIRS = doc
+
#### Host, target, and site specific Makefile fragments come in here.
###
check:
installcheck:
-info:
-dvi:
-clean-info: force
- -rm -f *.info*
+info dvi install-info clean-info: force
+ @$(MAKE) $(FLAGS_TO_PASS) DO=$@ "DODIRS=$(SUBDIRS)" subdir_do
+
+subdir_do: force
+ @for i in $(DODIRS); do \
+ if [ -f ./$$i/Makefile ] ; then \
+ if (cd ./$$i; \
+ $(MAKE) $(FLAGS_TO_PASS) $(DO)) ; then true ; \
+ else exit 1 ; fi ; \
+ else true ; fi ; \
+ done
history.info: $(srcdir)/history.texi
$(MAKEINFO) -o history.info $(srcdir)/history.texi
readline.info: $(srcdir)/readline.texi $(srcdir)/inc-read.texi
$(MAKEINFO) -o readline.info $(srcdir)/readline.texi
-libreadline.a: readline.o history.o funmap.o keymaps.o tilde.o vi_mode.o
+libreadline.a: $(OBJECTS)
$(RM) -f libreadline.a
- $(AR) $(AR_FLAGS) libreadline.a readline.o history.o funmap.o keymaps.o tilde.o vi_mode.o
+ $(AR) $(AR_FLAGS) libreadline.a $(OBJECTS)
$(RANLIB) libreadline.a
readline.o: readline.h chardefs.h keymaps.h history.h readline.c vi_mode.c
compress -f readline.tar
install:
- -parent=`echo $(libdir)|sed -e 's@/[^/]*$$@@'`; \
- if [ -d $$parent ] ; then true ; else mkdir $$parent ; fi
- -if [ -d $(libdir) ] ; then true ; else mkdir $(libdir) ; fi
$(INSTALL_DATA) libreadline.a $(libdir)/libreadline.a
$(RANLIB) $(libdir)/libreadline.a
- -parent=`echo $(includedir)|sed -e 's@/[^/]*$$@@'`; \
- if [ -d $$parent ] ; then true ; else mkdir $$parent ; fi
- -if [ -d $(includedir) ] ; then true ; else mkdir $(includedir) ; fi
- -if [ -d $(includedir)/readline ] ; then true ; else mkdir $(includedir)/readline ; fi
$(INSTALL_DATA) $(srcdir)/readline.h $(includedir)/readline/readline.h
$(INSTALL_DATA) $(srcdir)/keymaps.h $(includedir)/readline/keymaps.h
$(INSTALL_DATA) $(srcdir)/chardefs.h $(includedir)/readline/chardefs.h
-install-info: info
-# -parent=`echo $(infodir)|sed -e 's@/[^/]*$$@@'`; \
-# if [ -d $$parent ] ; then true ; else mkdir $$parent ; fi
-# -if [ -d $(infodir) ] ; then true ; else mkdir $(infodir) ; fi
-# for i in *.info* ; do \
-# $(INSTALL_DATA) $$i $(infodir)/$$i ; \
-# done
-
includes:
- -parent=`echo $(includedir)|sed -e 's@/[^/]*$$@@'`; \
- if [ -d $$parent ] ; then true ; else mkdir $$parent ; fi
- -if [ -d $(includedir) ] ; then true ; else mkdir $(includedir) ; fi
- -if [ ! -r $(includedir)/readline ]; then\
- mkdir $(includedir)/readline;\
- chmod a+r $(includedir)/readline;\
- fi
$(INSTALL_FILE) $(srcdir)/readline.h $(includedir)/readline/readline.h
$(INSTALL_FILE) $(srcdir)/keymaps.h $(includedir)/readline/keymaps.h
$(INSTALL_FILE) $(srcdir)/chardefs.h $(includedir)/readline/chardefs.h
--- /dev/null
+/* bind.c -- key binding and startup file support for the readline library. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
+
+ The GNU Readline Library is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 1, or
+ (at your option) any later version.
+
+ The GNU Readline Library is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "sysdep.h"
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#ifndef NO_SYS_FILE
+#include <sys/file.h>
+#endif
+
+#include <errno.h>
+/* Not all systems declare ERRNO in errno.h... and some systems #define it! */
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+#if !defined (strchr) && !defined (__STDC__)
+extern char *strchr (), *strrchr ();
+#endif /* !strchr && !__STDC__ */
+
+extern char *tilde_expand ();
+
+extern int _rl_horizontal_scroll_mode;
+extern int _rl_mark_modified_lines;
+extern int _rl_prefer_visible_bell;
+extern int _rl_meta_flag;
+extern int rl_blink_matching_paren;
+extern int _rl_convert_meta_chars_to_ascii;
+#if defined (VISIBLE_STATS)
+extern int rl_visible_stats;
+#endif /* VISIBLE_STATS */
+extern int rl_complete_with_tilde_expansion;
+extern int rl_completion_query_items;
+
+extern int rl_explicit_arg;
+extern int rl_editing_mode;
+extern unsigned short _rl_parsing_conditionalized_out;
+extern Keymap _rl_keymap;
+
+extern char *possible_control_prefixes[], *possible_meta_prefixes[];
+
+extern char **rl_funmap_names ();
+
+static void rl_generic_bind ();
+static int glean_key_from_name ();
+static int stricmp (), strnicmp ();
+
+#if defined (STATIC_MALLOC)
+static char *xmalloc (), *xrealloc ();
+#else
+extern char *xmalloc (), *xrealloc ();
+#endif /* STATIC_MALLOC */
+
+/* **************************************************************** */
+/* */
+/* Binding keys */
+/* */
+/* **************************************************************** */
+
+/* rl_add_defun (char *name, Function *function, int key)
+ Add NAME to the list of named functions. Make FUNCTION be the function
+ that gets called. If KEY is not -1, then bind it. */
+rl_add_defun (name, function, key)
+ char *name;
+ Function *function;
+ int key;
+{
+ if (key != -1)
+ rl_bind_key (key, function);
+ rl_add_funmap_entry (name, function);
+}
+
+/* Bind KEY to FUNCTION. Returns non-zero if KEY is out of range. */
+int
+rl_bind_key (key, function)
+ int key;
+ Function *function;
+{
+ if (key < 0)
+ return (key);
+
+ if (META_CHAR (key) && _rl_convert_meta_chars_to_ascii)
+ {
+ if (_rl_keymap[ESC].type == ISKMAP)
+ {
+ Keymap escmap = (Keymap)_rl_keymap[ESC].function;
+
+ key = UNMETA (key);
+ escmap[key].type = ISFUNC;
+ escmap[key].function = function;
+ return (0);
+ }
+ return (key);
+ }
+
+ _rl_keymap[key].type = ISFUNC;
+ _rl_keymap[key].function = function;
+ return (0);
+}
+
+/* Bind KEY to FUNCTION in MAP. Returns non-zero in case of invalid
+ KEY. */
+int
+rl_bind_key_in_map (key, function, map)
+ int key;
+ Function *function;
+ Keymap map;
+{
+ int result;
+ Keymap oldmap = _rl_keymap;
+
+ _rl_keymap = map;
+ result = rl_bind_key (key, function);
+ _rl_keymap = oldmap;
+ return (result);
+}
+
+/* Make KEY do nothing in the currently selected keymap.
+ Returns non-zero in case of error. */
+int
+rl_unbind_key (key)
+ int key;
+{
+ return (rl_bind_key (key, (Function *)NULL));
+}
+
+/* Make KEY do nothing in MAP.
+ Returns non-zero in case of error. */
+int
+rl_unbind_key_in_map (key, map)
+ int key;
+ Keymap map;
+{
+ return (rl_bind_key_in_map (key, (Function *)NULL, map));
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+ FUNCTION. This makes new keymaps as necessary. The initial
+ place to do bindings is in MAP. */
+rl_set_key (keyseq, function, map)
+ char *keyseq;
+ Function *function;
+ Keymap map;
+{
+ rl_generic_bind (ISFUNC, keyseq, function, map);
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+ the string of characters MACRO. This makes new keymaps as
+ necessary. The initial place to do bindings is in MAP. */
+rl_macro_bind (keyseq, macro, map)
+ char *keyseq, *macro;
+ Keymap map;
+{
+ char *macro_keys;
+ int macro_keys_len;
+
+ macro_keys = (char *)xmalloc ((2 * strlen (macro)) + 1);
+
+ if (rl_translate_keyseq (macro, macro_keys, ¯o_keys_len))
+ {
+ free (macro_keys);
+ return;
+ }
+ rl_generic_bind (ISMACR, keyseq, macro_keys, map);
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+ the arbitrary pointer DATA. TYPE says what kind of data is
+ pointed to by DATA, right now this can be a function (ISFUNC),
+ a macro (ISMACR), or a keymap (ISKMAP). This makes new keymaps
+ as necessary. The initial place to do bindings is in MAP. */
+
+static void
+rl_generic_bind (type, keyseq, data, map)
+ int type;
+ char *keyseq, *data;
+ Keymap map;
+{
+ char *keys;
+ int keys_len;
+ register int i;
+
+ /* If no keys to bind to, exit right away. */
+ if (!keyseq || !*keyseq)
+ {
+ if (type == ISMACR)
+ free (data);
+ return;
+ }
+
+ keys = (char *)alloca (1 + (2 * strlen (keyseq)));
+
+ /* Translate the ASCII representation of KEYSEQ into an array of
+ characters. Stuff the characters into KEYS, and the length of
+ KEYS into KEYS_LEN. */
+ if (rl_translate_keyseq (keyseq, keys, &keys_len))
+ return;
+
+ /* Bind keys, making new keymaps as necessary. */
+ for (i = 0; i < keys_len; i++)
+ {
+ int ic = (int) ((unsigned char)keys[i]);
+
+ if (_rl_convert_meta_chars_to_ascii && META_CHAR (ic))
+ {
+ ic = UNMETA (ic);
+ if (map[ESC].type == ISKMAP)
+ map = (Keymap) map[ESC].function;
+ }
+
+ if ((i + 1) < keys_len)
+ {
+ if (map[ic].type != ISKMAP)
+ {
+ if (map[ic].type == ISMACR)
+ free ((char *)map[ic].function);
+
+ map[ic].type = ISKMAP;
+ map[ic].function = (Function *)rl_make_bare_keymap ();
+ }
+ map = (Keymap)map[ic].function;
+ }
+ else
+ {
+ if (map[ic].type == ISMACR)
+ free ((char *)map[ic].function);
+
+ map[ic].function = (Function *)data;
+ map[ic].type = type;
+ }
+ }
+}
+
+/* Translate the ASCII representation of SEQ, stuffing the values into ARRAY,
+ an array of characters. LEN gets the final length of ARRAY. Return
+ non-zero if there was an error parsing SEQ. */
+rl_translate_keyseq (seq, array, len)
+ char *seq, *array;
+ int *len;
+{
+ register int i, c, l = 0;
+
+ for (i = 0; c = seq[i]; i++)
+ {
+ if (c == '\\')
+ {
+ c = seq[++i];
+
+ if (!c)
+ break;
+
+ if (((c == 'C' || c == 'M') && seq[i + 1] == '-') ||
+ (c == 'e'))
+ {
+ /* Handle special case of backwards define. */
+ if (strncmp (&seq[i], "C-\\M-", 5) == 0)
+ {
+ array[l++] = ESC;
+ i += 5;
+ array[l++] = CTRL (to_upper (seq[i]));
+ if (!seq[i])
+ i--;
+ continue;
+ }
+
+ switch (c)
+ {
+ case 'M':
+ i++;
+ array[l++] = ESC;
+ break;
+
+ case 'C':
+ i += 2;
+ /* Special hack for C-?... */
+ if (seq[i] == '?')
+ array[l++] = RUBOUT;
+ else
+ array[l++] = CTRL (to_upper (seq[i]));
+ break;
+
+ case 'e':
+ array[l++] = ESC;
+ }
+
+ continue;
+ }
+ }
+ array[l++] = c;
+ }
+
+ *len = l;
+ array[l] = '\0';
+ return (0);
+}
+
+/* Return a pointer to the function that STRING represents.
+ If STRING doesn't have a matching function, then a NULL pointer
+ is returned. */
+Function *
+rl_named_function (string)
+ char *string;
+{
+ register int i;
+
+ rl_initialize_funmap ();
+
+ for (i = 0; funmap[i]; i++)
+ if (stricmp (funmap[i]->name, string) == 0)
+ return (funmap[i]->function);
+ return ((Function *)NULL);
+}
+
+/* Return the function (or macro) definition which would be invoked via
+ KEYSEQ if executed in MAP. If MAP is NULL, then the current keymap is
+ used. TYPE, if non-NULL, is a pointer to an int which will receive the
+ type of the object pointed to. One of ISFUNC (function), ISKMAP (keymap),
+ or ISMACR (macro). */
+Function *
+rl_function_of_keyseq (keyseq, map, type)
+ char *keyseq;
+ Keymap map;
+ int *type;
+{
+ register int i;
+
+ if (!map)
+ map = _rl_keymap;
+
+ for (i = 0; keyseq && keyseq[i]; i++)
+ {
+ int ic = keyseq[i];
+
+ if (META_CHAR (ic) && _rl_convert_meta_chars_to_ascii)
+ {
+ if (map[ESC].type != ISKMAP)
+ {
+ if (type)
+ *type = map[ESC].type;
+
+ return (map[ESC].function);
+ }
+ else
+ {
+ map = (Keymap)map[ESC].function;
+ ic = UNMETA (ic);
+ }
+ }
+
+ if (map[ic].type == ISKMAP)
+ {
+ /* If this is the last key in the key sequence, return the
+ map. */
+ if (!keyseq[i + 1])
+ {
+ if (type)
+ *type = ISKMAP;
+
+ return (map[ic].function);
+ }
+ else
+ map = (Keymap)map[ic].function;
+ }
+ else
+ {
+ if (type)
+ *type = map[ic].type;
+
+ return (map[ic].function);
+ }
+ }
+}
+
+/* The last key bindings file read. */
+static char *last_readline_init_file = (char *)NULL;
+
+/* Re-read the current keybindings file. */
+rl_re_read_init_file (count, ignore)
+ int count, ignore;
+{
+ rl_read_init_file ((char *)NULL);
+}
+
+/* The final, last-ditch effort file name for an init file. */
+#ifdef __MSDOS__
+/* Don't know what to do, but this is a guess */
+#define DEFAULT_INPUTRC "/INPUTRC";
+#else
+#define DEFAULT_INPUTRC "~/.inputrc"
+#endif
+
+/* Do key bindings from a file. If FILENAME is NULL it defaults
+ to `~/.inputrc'. If the file existed and could be opened and
+ read, 0 is returned, otherwise errno is returned. */
+int
+rl_read_init_file (filename)
+ char *filename;
+{
+ register int i;
+ char *buffer, *openname, *line, *end;
+ struct stat finfo;
+ int file;
+
+ /* Default the filename. */
+ if (!filename)
+ {
+ if (last_readline_init_file)
+ filename = last_readline_init_file;
+ else
+ filename = DEFAULT_INPUTRC;
+ }
+
+ openname = tilde_expand (filename);
+
+ if (!openname || *openname == '\000')
+ return ENOENT;
+
+ if ((stat (openname, &finfo) < 0) ||
+ (file = open (openname, O_RDONLY, 0666)) < 0)
+ {
+ free (openname);
+ return (errno);
+ }
+ else
+ free (openname);
+
+ if (last_readline_init_file)
+ free (last_readline_init_file);
+
+ last_readline_init_file = savestring (filename);
+
+ /* Read the file into BUFFER. */
+ buffer = (char *)xmalloc ((int)finfo.st_size + 1);
+ i = read (file, buffer, finfo.st_size);
+ close (file);
+
+ if (i != finfo.st_size)
+ return (errno);
+
+ /* Loop over the lines in the file. Lines that start with `#' are
+ comments; all other lines are commands for readline initialization. */
+ line = buffer;
+ end = buffer + finfo.st_size;
+ while (line < end)
+ {
+ /* Find the end of this line. */
+ for (i = 0; line + i != end && line[i] != '\n'; i++);
+
+ /* Mark end of line. */
+ line[i] = '\0';
+
+ /* If the line is not a comment, then parse it. */
+ if (*line && *line != '#')
+ rl_parse_and_bind (line);
+
+ /* Move to the next line. */
+ line += i + 1;
+ }
+ free (buffer);
+ return (0);
+}
+
+/* **************************************************************** */
+/* */
+/* Parser Directives */
+/* */
+/* **************************************************************** */
+
+/* Conditionals. */
+
+/* Calling programs set this to have their argv[0]. */
+char *rl_readline_name = "other";
+
+/* Stack of previous values of parsing_conditionalized_out. */
+static unsigned char *if_stack = (unsigned char *)NULL;
+static int if_stack_depth = 0;
+static int if_stack_size = 0;
+
+/* Push _rl_parsing_conditionalized_out, and set parser state based
+ on ARGS. */
+static int
+parser_if (args)
+ char *args;
+{
+ register int i;
+
+ /* Push parser state. */
+ if (if_stack_depth + 1 >= if_stack_size)
+ {
+ if (!if_stack)
+ if_stack = (unsigned char *)xmalloc (if_stack_size = 20);
+ else
+ if_stack = (unsigned char *)xrealloc (if_stack, if_stack_size += 20);
+ }
+ if_stack[if_stack_depth++] = _rl_parsing_conditionalized_out;
+
+ /* If parsing is turned off, then nothing can turn it back on except
+ for finding the matching endif. In that case, return right now. */
+ if (_rl_parsing_conditionalized_out)
+ return 0;
+
+ /* Isolate first argument. */
+ for (i = 0; args[i] && !whitespace (args[i]); i++);
+
+ if (args[i])
+ args[i++] = '\0';
+
+ /* Handle "if term=foo" and "if mode=emacs" constructs. If this
+ isn't term=foo, or mode=emacs, then check to see if the first
+ word in ARGS is the same as the value stored in rl_readline_name. */
+ if (rl_terminal_name && strnicmp (args, "term=", 5) == 0)
+ {
+ char *tem, *tname;
+
+ /* Terminals like "aaa-60" are equivalent to "aaa". */
+ tname = savestring (rl_terminal_name);
+ tem = (char*) strrchr (tname, '-');
+ if (tem)
+ *tem = '\0';
+
+ /* Test the `long' and `short' forms of the terminal name so that
+ if someone has a `sun-cmd' and does not want to have bindings
+ that will be executed if the terminal is a `sun', they can put
+ `$if term=sun-cmd' into their .inputrc. */
+ if ((stricmp (args + 5, tname) == 0) ||
+ (stricmp (args + 5, rl_terminal_name) == 0))
+ _rl_parsing_conditionalized_out = 0;
+ else
+ _rl_parsing_conditionalized_out = 1;
+
+ free (tname);
+ }
+#if defined (VI_MODE)
+ else if (strnicmp (args, "mode=", 5) == 0)
+ {
+ int mode;
+
+ if (stricmp (args + 5, "emacs") == 0)
+ mode = emacs_mode;
+ else if (stricmp (args + 5, "vi") == 0)
+ mode = vi_mode;
+ else
+ mode = no_mode;
+
+ if (mode == rl_editing_mode)
+ _rl_parsing_conditionalized_out = 0;
+ else
+ _rl_parsing_conditionalized_out = 1;
+ }
+#endif /* VI_MODE */
+ /* Check to see if the first word in ARGS is the same as the
+ value stored in rl_readline_name. */
+ else if (stricmp (args, rl_readline_name) == 0)
+ _rl_parsing_conditionalized_out = 0;
+ else
+ _rl_parsing_conditionalized_out = 1;
+ return 0;
+}
+
+/* Invert the current parser state if there is anything on the stack. */
+static int
+parser_else (args)
+ char *args;
+{
+ register int i;
+
+ if (!if_stack_depth)
+ {
+ /* Error message? */
+ return 0;
+ }
+
+ /* Check the previous (n - 1) levels of the stack to make sure that
+ we haven't previously turned off parsing. */
+ for (i = 0; i < if_stack_depth - 1; i++)
+ if (if_stack[i] == 1)
+ return 0;
+
+ /* Invert the state of parsing if at top level. */
+ _rl_parsing_conditionalized_out = !_rl_parsing_conditionalized_out;
+ return 0;
+}
+
+/* Terminate a conditional, popping the value of
+ _rl_parsing_conditionalized_out from the stack. */
+static int
+parser_endif (args)
+ char *args;
+{
+ if (if_stack_depth)
+ _rl_parsing_conditionalized_out = if_stack[--if_stack_depth];
+ else
+ {
+ /* *** What, no error message? *** */
+ }
+ return 0;
+}
+
+/* Associate textual names with actual functions. */
+static struct {
+ char *name;
+ Function *function;
+} parser_directives [] = {
+ { "if", parser_if },
+ { "endif", parser_endif },
+ { "else", parser_else },
+ { (char *)0x0, (Function *)0x0 }
+};
+
+/* Handle a parser directive. STATEMENT is the line of the directive
+ without any leading `$'. */
+static int
+handle_parser_directive (statement)
+ char *statement;
+{
+ register int i;
+ char *directive, *args;
+
+ /* Isolate the actual directive. */
+
+ /* Skip whitespace. */
+ for (i = 0; whitespace (statement[i]); i++);
+
+ directive = &statement[i];
+
+ for (; statement[i] && !whitespace (statement[i]); i++);
+
+ if (statement[i])
+ statement[i++] = '\0';
+
+ for (; statement[i] && whitespace (statement[i]); i++);
+
+ args = &statement[i];
+
+ /* Lookup the command, and act on it. */
+ for (i = 0; parser_directives[i].name; i++)
+ if (stricmp (directive, parser_directives[i].name) == 0)
+ {
+ (*parser_directives[i].function) (args);
+ return (0);
+ }
+
+ /* *** Should an error message be output? */
+ return (1);
+}
+
+/* Ugly but working hack for binding prefix meta. */
+#define PREFIX_META_HACK
+
+static int substring_member_of_array ();
+
+/* Read the binding command from STRING and perform it.
+ A key binding command looks like: Keyname: function-name\0,
+ a variable binding command looks like: set variable value.
+ A new-style keybinding looks like "\C-x\C-x": exchange-point-and-mark. */
+rl_parse_and_bind (string)
+ char *string;
+{
+ char *funname, *kname;
+ register int c, i;
+ int key, equivalency;
+
+ while (string && whitespace (*string))
+ string++;
+
+ if (!string || !*string || *string == '#')
+ return;
+
+ /* If this is a parser directive, act on it. */
+ if (*string == '$')
+ {
+ handle_parser_directive (&string[1]);
+ return;
+ }
+
+ /* If we aren't supposed to be parsing right now, then we're done. */
+ if (_rl_parsing_conditionalized_out)
+ return;
+
+ i = 0;
+ /* If this keyname is a complex key expression surrounded by quotes,
+ advance to after the matching close quote. This code allows the
+ backslash to quote characters in the key expression. */
+ if (*string == '"')
+ {
+ int passc = 0;
+
+ for (i = 1; c = string[i]; i++)
+ {
+ if (passc)
+ {
+ passc = 0;
+ continue;
+ }
+
+ if (c == '\\')
+ {
+ passc++;
+ continue;
+ }
+
+ if (c == '"')
+ break;
+ }
+ }
+
+ /* Advance to the colon (:) or whitespace which separates the two objects. */
+ for (; (c = string[i]) && c != ':' && c != ' ' && c != '\t'; i++ );
+
+ equivalency = (c == ':' && string[i + 1] == '=');
+
+ /* Mark the end of the command (or keyname). */
+ if (string[i])
+ string[i++] = '\0';
+
+ /* If doing assignment, skip the '=' sign as well. */
+ if (equivalency)
+ string[i++] = '\0';
+
+ /* If this is a command to set a variable, then do that. */
+ if (stricmp (string, "set") == 0)
+ {
+ char *var = string + i;
+ char *value;
+
+ /* Make VAR point to start of variable name. */
+ while (*var && whitespace (*var)) var++;
+
+ /* Make value point to start of value string. */
+ value = var;
+ while (*value && !whitespace (*value)) value++;
+ if (*value)
+ *value++ = '\0';
+ while (*value && whitespace (*value)) value++;
+
+ rl_variable_bind (var, value);
+ return;
+ }
+
+ /* Skip any whitespace between keyname and funname. */
+ for (; string[i] && whitespace (string[i]); i++);
+ funname = &string[i];
+
+ /* Now isolate funname.
+ For straight function names just look for whitespace, since
+ that will signify the end of the string. But this could be a
+ macro definition. In that case, the string is quoted, so skip
+ to the matching delimiter. We allow the backslash to quote the
+ delimiter characters in the macro body. */
+ /* This code exists to allow whitespace in macro expansions, which
+ would otherwise be gobbled up by the next `for' loop.*/
+ /* XXX - it may be desirable to allow backslash quoting only if " is
+ the quoted string delimiter, like the shell. */
+ if (*funname == '\'' || *funname == '"')
+ {
+ int delimiter = string[i++];
+ int passc = 0;
+
+ for (; c = string[i]; i++)
+ {
+ if (passc)
+ {
+ passc = 0;
+ continue;
+ }
+
+ if (c == '\\')
+ {
+ passc = 1;
+ continue;
+ }
+
+ if (c == delimiter)
+ break;
+ }
+ if (c)
+ i++;
+ }
+
+ /* Advance to the end of the string. */
+ for (; string[i] && !whitespace (string[i]); i++);
+
+ /* No extra whitespace at the end of the string. */
+ string[i] = '\0';
+
+ /* Handle equivalency bindings here. Make the left-hand side be exactly
+ whatever the right-hand evaluates to, including keymaps. */
+ if (equivalency)
+ {
+ return;
+ }
+
+ /* If this is a new-style key-binding, then do the binding with
+ rl_set_key (). Otherwise, let the older code deal with it. */
+ if (*string == '"')
+ {
+ char *seq = (char *)alloca (1 + strlen (string));
+ register int j, k = 0;
+ int passc = 0;
+
+ for (j = 1; string[j]; j++)
+ {
+ /* Allow backslash to quote characters, but leave them in place.
+ This allows a string to end with a backslash quoting another
+ backslash, or with a backslash quoting a double quote. The
+ backslashes are left in place for rl_translate_keyseq (). */
+ if (passc || (string[j] == '\\'))
+ {
+ seq[k++] = string[j];
+ passc = !passc;
+ continue;
+ }
+
+ if (string[j] == '"')
+ break;
+
+ seq[k++] = string[j];
+ }
+ seq[k] = '\0';
+
+ /* Binding macro? */
+ if (*funname == '\'' || *funname == '"')
+ {
+ j = strlen (funname);
+
+ /* Remove the delimiting quotes from each end of FUNNAME. */
+ if (j && funname[j - 1] == *funname)
+ funname[j - 1] = '\0';
+
+ rl_macro_bind (seq, &funname[1], _rl_keymap);
+ }
+ else
+ rl_set_key (seq, rl_named_function (funname), _rl_keymap);
+
+ return;
+ }
+
+ /* Get the actual character we want to deal with. */
+ kname = (char*) strrchr (string, '-');
+ if (!kname)
+ kname = string;
+ else
+ kname++;
+
+ key = glean_key_from_name (kname);
+
+ /* Add in control and meta bits. */
+ if (substring_member_of_array (string, possible_control_prefixes))
+ key = CTRL (to_upper (key));
+
+ if (substring_member_of_array (string, possible_meta_prefixes))
+ key = META (key);
+
+ /* Temporary. Handle old-style keyname with macro-binding. */
+ if (*funname == '\'' || *funname == '"')
+ {
+ char seq[2];
+ int fl = strlen (funname);
+
+ seq[0] = key; seq[1] = '\0';
+ if (fl && funname[fl - 1] == *funname)
+ funname[fl - 1] = '\0';
+
+ rl_macro_bind (seq, &funname[1], _rl_keymap);
+ }
+#if defined (PREFIX_META_HACK)
+ /* Ugly, but working hack to keep prefix-meta around. */
+ else if (stricmp (funname, "prefix-meta") == 0)
+ {
+ char seq[2];
+
+ seq[0] = key;
+ seq[1] = '\0';
+ rl_generic_bind (ISKMAP, seq, (char *)emacs_meta_keymap, _rl_keymap);
+ }
+#endif /* PREFIX_META_HACK */
+ else
+ rl_bind_key (key, rl_named_function (funname));
+}
+
+/* Simple structure for boolean readline variables (i.e., those that can
+ have one of two values; either "On" or 1 for truth, or "Off" or 0 for
+ false. */
+
+static struct {
+ char *name;
+ int *value;
+} boolean_varlist [] = {
+ { "horizontal-scroll-mode", &_rl_horizontal_scroll_mode },
+ { "mark-modified-lines", &_rl_mark_modified_lines },
+ { "prefer-visible-bell", &_rl_prefer_visible_bell },
+ { "meta-flag", &_rl_meta_flag },
+ { "blink-matching-paren", &rl_blink_matching_paren },
+ { "convert-meta", &_rl_convert_meta_chars_to_ascii },
+#if defined (VISIBLE_STATS)
+ { "visible-stats", &rl_visible_stats },
+#endif /* VISIBLE_STATS */
+ { "expand-tilde", &rl_complete_with_tilde_expansion },
+ { (char *)NULL, (int *)NULL }
+};
+
+rl_variable_bind (name, value)
+ char *name, *value;
+{
+ register int i;
+
+ /* Check for simple variables first. */
+ for (i = 0; boolean_varlist[i].name; i++)
+ {
+ if (stricmp (name, boolean_varlist[i].name) == 0)
+ {
+ /* A variable is TRUE if the "value" is "on", "1" or "". */
+ if ((!*value) ||
+ (stricmp (value, "On") == 0) ||
+ (value[0] == '1' && value[1] == '\0'))
+ *boolean_varlist[i].value = 1;
+ else
+ *boolean_varlist[i].value = 0;
+ return;
+ }
+ }
+
+ /* Not a boolean variable, so check for specials. */
+
+ /* Editing mode change? */
+ if (stricmp (name, "editing-mode") == 0)
+ {
+ if (strnicmp (value, "vi", 2) == 0)
+ {
+#if defined (VI_MODE)
+ _rl_keymap = vi_insertion_keymap;
+ rl_editing_mode = vi_mode;
+#else
+#if defined (NOTDEF)
+ /* What state is the terminal in? I'll tell you:
+ non-determinate! That means we cannot do any output. */
+ ding ();
+#endif /* NOTDEF */
+#endif /* VI_MODE */
+ }
+ else if (strnicmp (value, "emacs", 5) == 0)
+ {
+ _rl_keymap = emacs_standard_keymap;
+ rl_editing_mode = emacs_mode;
+ }
+ }
+
+ /* Comment string change? */
+ else if (stricmp (name, "comment-begin") == 0)
+ {
+#if defined (VI_MODE)
+ extern char *rl_vi_comment_begin;
+
+ if (*value)
+ {
+ if (rl_vi_comment_begin)
+ free (rl_vi_comment_begin);
+
+ rl_vi_comment_begin = savestring (value);
+ }
+#endif /* VI_MODE */
+ }
+ else if (stricmp (name, "completion-query-items") == 0)
+ {
+ int nval = 100;
+ if (*value)
+ {
+ nval = atoi (value);
+ if (nval < 0)
+ nval = 0;
+ }
+ rl_completion_query_items = nval;
+ }
+}
+
+/* Return the character which matches NAME.
+ For example, `Space' returns ' '. */
+
+typedef struct {
+ char *name;
+ int value;
+} assoc_list;
+
+static assoc_list name_key_alist[] = {
+ { "DEL", 0x7f },
+ { "ESC", '\033' },
+ { "Escape", '\033' },
+ { "LFD", '\n' },
+ { "Newline", '\n' },
+ { "RET", '\r' },
+ { "Return", '\r' },
+ { "Rubout", 0x7f },
+ { "SPC", ' ' },
+ { "Space", ' ' },
+ { "Tab", 0x09 },
+ { (char *)0x0, 0 }
+};
+
+static int
+glean_key_from_name (name)
+ char *name;
+{
+ register int i;
+
+ for (i = 0; name_key_alist[i].name; i++)
+ if (stricmp (name, name_key_alist[i].name) == 0)
+ return (name_key_alist[i].value);
+
+ return (*(unsigned char *)name); /* XXX was return (*name) */
+}
+
+/* Auxiliary functions to manage keymaps. */
+static struct {
+ char *name;
+ Keymap map;
+} keymap_names[] = {
+ { "emacs", emacs_standard_keymap },
+ { "emacs-standard", emacs_standard_keymap },
+ { "emacs-meta", emacs_meta_keymap },
+ { "emacs-ctlx", emacs_ctlx_keymap },
+#if defined (VI_MODE)
+ { "vi", vi_movement_keymap },
+ { "vi-move", vi_movement_keymap },
+ { "vi-command", vi_movement_keymap },
+ { "vi-insert", vi_insertion_keymap },
+#endif /* VI_MODE */
+ { (char *)0x0, (Keymap)0x0 }
+};
+
+Keymap
+rl_get_keymap_by_name (name)
+ char *name;
+{
+ register int i;
+
+ for (i = 0; keymap_names[i].name; i++)
+ if (strcmp (name, keymap_names[i].name) == 0)
+ return (keymap_names[i].map);
+ return ((Keymap) NULL);
+}
+
+void
+rl_set_keymap (map)
+ Keymap map;
+{
+ if (map)
+ _rl_keymap = map;
+}
+
+Keymap
+rl_get_keymap ()
+{
+ return (_rl_keymap);
+}
+
+void
+rl_set_keymap_from_edit_mode ()
+{
+ if (rl_editing_mode == emacs_mode)
+ _rl_keymap = emacs_standard_keymap;
+ else if (rl_editing_mode == vi_mode)
+ _rl_keymap = vi_insertion_keymap;
+}
+\f
+/* **************************************************************** */
+/* */
+/* Key Binding and Function Information */
+/* */
+/* **************************************************************** */
+
+/* Each of the following functions produces information about the
+ state of keybindings and functions known to Readline. The info
+ is always printed to rl_outstream, and in such a way that it can
+ be read back in (i.e., passed to rl_parse_and_bind (). */
+
+/* Print the names of functions known to Readline. */
+void
+rl_list_funmap_names (ignore)
+ int ignore;
+{
+ register int i;
+ char **funmap_names;
+
+ funmap_names = rl_funmap_names ();
+
+ if (!funmap_names)
+ return;
+
+ for (i = 0; funmap_names[i]; i++)
+ fprintf (rl_outstream, "%s\n", funmap_names[i]);
+
+ free (funmap_names);
+}
+
+/* Return a NULL terminated array of strings which represent the key
+ sequences that are used to invoke FUNCTION in MAP. */
+static char **
+invoking_keyseqs_in_map (function, map)
+ Function *function;
+ Keymap map;
+{
+ register int key;
+ char **result;
+ int result_index, result_size;
+
+ result = (char **)NULL;
+ result_index = result_size = 0;
+
+ for (key = 0; key < 128; key++)
+ {
+ switch (map[key].type)
+ {
+ case ISMACR:
+ /* Macros match, if, and only if, the pointers are identical.
+ Thus, they are treated exactly like functions in here. */
+ case ISFUNC:
+ /* If the function in the keymap is the one we are looking for,
+ then add the current KEY to the list of invoking keys. */
+ if (map[key].function == function)
+ {
+ char *keyname = (char *)xmalloc (5);
+
+ if (CTRL_P (key))
+ sprintf (keyname, "\\C-%c", to_lower (UNCTRL (key)));
+ else if (key == RUBOUT)
+ sprintf (keyname, "\\C-?");
+ else if (key == '\\' || key == '"')
+ {
+ keyname[0] = '\\';
+ keyname[1] = (char) key;
+ keyname[2] = '\0';
+ }
+ else
+ {
+ keyname[0] = (char) key;
+ keyname[1] = '\0';
+ }
+
+ if (result_index + 2 > result_size)
+ result = (char **) xrealloc
+ (result, (result_size += 10) * sizeof (char *));
+
+ result[result_index++] = keyname;
+ result[result_index] = (char *)NULL;
+ }
+ break;
+
+ case ISKMAP:
+ {
+ char **seqs = (char **)NULL;
+
+ /* Find the list of keyseqs in this map which have FUNCTION as
+ their target. Add the key sequences found to RESULT. */
+ if (map[key].function)
+ seqs =
+ invoking_keyseqs_in_map (function, (Keymap)map[key].function);
+
+ if (seqs)
+ {
+ register int i;
+
+ for (i = 0; seqs[i]; i++)
+ {
+ char *keyname = (char *)xmalloc (6 + strlen (seqs[i]));
+
+ if (key == ESC)
+ sprintf (keyname, "\\e");
+ else if (CTRL_P (key))
+ sprintf (keyname, "\\C-%c", to_lower (UNCTRL (key)));
+ else if (key == RUBOUT)
+ sprintf (keyname, "\\C-?");
+ else if (key == '\\' || key == '"')
+ {
+ keyname[0] = '\\';
+ keyname[1] = (char) key;
+ keyname[2] = '\0';
+ }
+ else
+ {
+ keyname[0] = (char) key;
+ keyname[1] = '\0';
+ }
+
+ strcat (keyname, seqs[i]);
+
+ if (result_index + 2 > result_size)
+ result = (char **) xrealloc
+ (result, (result_size += 10) * sizeof (char *));
+
+ result[result_index++] = keyname;
+ result[result_index] = (char *)NULL;
+ }
+ }
+ }
+ break;
+ }
+ }
+ return (result);
+}
+
+/* Return a NULL terminated array of strings which represent the key
+ sequences that can be used to invoke FUNCTION using the current keymap. */
+char **
+rl_invoking_keyseqs (function)
+ Function *function;
+{
+ return (invoking_keyseqs_in_map (function, _rl_keymap));
+}
+
+/* Print all of the current functions and their bindings to
+ rl_outstream. If an explicit argument is given, then print
+ the output in such a way that it can be read back in. */
+int
+rl_dump_functions (count)
+ int count;
+{
+ void rl_function_dumper ();
+
+ rl_function_dumper (rl_explicit_arg);
+ rl_on_new_line ();
+ return (0);
+}
+
+/* Print all of the functions and their bindings to rl_outstream. If
+ PRINT_READABLY is non-zero, then print the output in such a way
+ that it can be read back in. */
+void
+rl_function_dumper (print_readably)
+ int print_readably;
+{
+ register int i;
+ char **names;
+ char *name;
+
+ names = rl_funmap_names ();
+
+ fprintf (rl_outstream, "\n");
+
+ for (i = 0; name = names[i]; i++)
+ {
+ Function *function;
+ char **invokers;
+
+ function = rl_named_function (name);
+ invokers = invoking_keyseqs_in_map (function, _rl_keymap);
+
+ if (print_readably)
+ {
+ if (!invokers)
+ fprintf (rl_outstream, "# %s (not bound)\n", name);
+ else
+ {
+ register int j;
+
+ for (j = 0; invokers[j]; j++)
+ {
+ fprintf (rl_outstream, "\"%s\": %s\n",
+ invokers[j], name);
+ free (invokers[j]);
+ }
+
+ free (invokers);
+ }
+ }
+ else
+ {
+ if (!invokers)
+ fprintf (rl_outstream, "%s is not bound to any keys\n",
+ name);
+ else
+ {
+ register int j;
+
+ fprintf (rl_outstream, "%s can be found on ", name);
+
+ for (j = 0; invokers[j] && j < 5; j++)
+ {
+ fprintf (rl_outstream, "\"%s\"%s", invokers[j],
+ invokers[j + 1] ? ", " : ".\n");
+ }
+
+ if (j == 5 && invokers[j])
+ fprintf (rl_outstream, "...\n");
+
+ for (j = 0; invokers[j]; j++)
+ free (invokers[j]);
+
+ free (invokers);
+ }
+ }
+ }
+}
+
+\f
+/* **************************************************************** */
+/* */
+/* String Utility Functions */
+/* */
+/* **************************************************************** */
+
+static char *strindex ();
+
+/* Return non-zero if any members of ARRAY are a substring in STRING. */
+static int
+substring_member_of_array (string, array)
+ char *string, **array;
+{
+ while (*array)
+ {
+ if (strindex (string, *array))
+ return (1);
+ array++;
+ }
+ return (0);
+}
+
+/* Whoops, Unix doesn't have strnicmp. */
+
+/* Compare at most COUNT characters from string1 to string2. Case
+ doesn't matter. */
+static int
+strnicmp (string1, string2, count)
+ char *string1, *string2;
+{
+ register char ch1, ch2;
+
+ while (count)
+ {
+ ch1 = *string1++;
+ ch2 = *string2++;
+ if (to_upper(ch1) == to_upper(ch2))
+ count--;
+ else break;
+ }
+ return (count);
+}
+
+/* strcmp (), but caseless. */
+static int
+stricmp (string1, string2)
+ char *string1, *string2;
+{
+ register char ch1, ch2;
+
+ while (*string1 && *string2)
+ {
+ ch1 = *string1++;
+ ch2 = *string2++;
+ if (to_upper(ch1) != to_upper(ch2))
+ return (1);
+ }
+ return (*string1 | *string2);
+}
+
+/* Determine if s2 occurs in s1. If so, return a pointer to the
+ match in s1. The compare is case insensitive. */
+static char *
+strindex (s1, s2)
+ register char *s1, *s2;
+{
+ register int i, l = strlen (s2);
+ register int len = strlen (s1);
+
+ for (i = 0; (len - i) >= l; i++)
+ if (strnicmp (&s1[i], s2, l) == 0)
+ return (s1 + i);
+ return ((char *)NULL);
+}
/* chardefs.h -- Character definitions for readline. */
#ifndef _CHARDEFS_
+#define _CHARDEFS_
+
+#include <ctype.h>
+
+#if defined (HAVE_STRING_H)
+# include <string.h>
+#else
+# include <strings.h>
+#endif /* HAVE_STRING_H */
#ifndef savestring
-#define savestring(x) (char *)strcpy (xmalloc (1 + strlen (x)), (x))
+extern char *xmalloc ();
+# ifndef strcpy
+extern char *strcpy ();
+# endif
+#define savestring(x) strcpy (xmalloc (1 + strlen (x)), (x))
#endif
#ifndef whitespace
#endif
/* Some character stuff. */
-#define control_character_threshold 0x020 /* smaller than this is control */
-#define meta_character_threshold 0x07f /* larger than this is Meta. */
+#define control_character_threshold 0x020 /* Smaller than this is control. */
+#define meta_character_threshold 0x07f /* Larger than this is Meta. */
#define control_character_bit 0x40 /* 0x000000, must be off. */
#define meta_character_bit 0x080 /* x0000000, must be on. */
+#define largest_char 255 /* Largest character value. */
+#define META_CHAR(c) ((c) > meta_character_threshold && (c) <= largest_char)
#define CTRL(c) ((c) & (~control_character_bit))
#define META(c) ((c) | meta_character_bit)
#define CTRL_P(c) ((c) < control_character_threshold)
#define META_P(c) ((c) > meta_character_threshold)
+#ifndef NEWLINE
#define NEWLINE '\n'
+#endif
+
+#ifndef RETURN
#define RETURN CTRL('M')
+#endif
+
+#ifndef RUBOUT
#define RUBOUT 0x07f
+#endif
+
+#ifndef TAB
#define TAB '\t'
+#endif
+
+#ifdef ABORT_CHAR
+#undef ABORT_CHAR
+#endif
#define ABORT_CHAR CTRL('G')
+
+#ifdef PAGE
+#undef PAGE
+#endif
#define PAGE CTRL('L')
+
+#ifdef SPACE
+#undef SPACE
+#endif
#define SPACE 0x020
+
+#ifdef ESC
+#undef ESC
+#endif
+
#define ESC CTRL('[')
#endif /* _CHARDEFS_ */
--- /dev/null
+/* complete.c -- filename completion for readline. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
+
+ The GNU Readline Library is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 1, or
+ (at your option) any later version.
+
+ The GNU Readline Library is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "sysdep.h"
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#if !defined (NO_SYS_FILE)
+# include <sys/file.h>
+#endif /* !NO_SYS_FILE */
+
+#include <errno.h>
+/* Not all systems declare ERRNO in errno.h... and some systems #define it! */
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+/* These next are for filename completion. Perhaps this belongs
+ in a different place. */
+#ifndef __MSDOS__
+#include <pwd.h>
+#endif /* __MSDOS__ */
+#if defined (USG) && !defined (isc386) && !defined (sgi)
+extern struct passwd *getpwuid (), *getpwent ();
+#endif
+#if defined (isc386) && !defined (__STDC__) && defined (_POSIX_SOURCE)
+extern struct passwd *getpwent ();
+#endif
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+
+#if !defined (strchr)
+extern char *strchr ();
+#endif /* !strchr */
+#if !defined (strrchr)
+extern char *strrchr ();
+#endif /* !strrchr*/
+
+extern char *tilde_expand ();
+extern char *rl_copy_text ();
+
+extern Function *rl_last_func;
+extern int rl_editing_mode;
+extern int screenwidth;
+
+static int compare_strings ();
+static char *rl_strpbrk ();
+
+#if defined (STATIC_MALLOC)
+static char *xmalloc (), *xrealloc ();
+#else
+extern char *xmalloc (), *xrealloc ();
+#endif /* STATIC_MALLOC */
+\f
+/* If non-zero, then this is the address of a function to call when
+ completing on a directory name. The function is called with
+ the address of a string (the current directory name) as an arg. */
+Function *rl_symbolic_link_hook = (Function *)NULL;
+
+/* Non-zero means readline completion functions perform tilde expansion. */
+int rl_complete_with_tilde_expansion = 0;
+
+#define VISIBLE_STATS
+
+#if defined (VISIBLE_STATS)
+static int stat_char ();
+
+/* Non-zero means add an additional character to each filename displayed
+ during listing completion iff rl_filename_completion_desired which helps
+ to indicate the type of file being listed. */
+int rl_visible_stats = 0;
+#endif /* VISIBLE_STATS */
+
+/* **************************************************************** */
+/* */
+/* Completion matching, from readline's point of view. */
+/* */
+/* **************************************************************** */
+
+/* Pointer to the generator function for completion_matches ().
+ NULL means to use filename_entry_function (), the default filename
+ completer. */
+Function *rl_completion_entry_function = (Function *)NULL;
+
+/* Pointer to alternative function to create matches.
+ Function is called with TEXT, START, and END.
+ START and END are indices in RL_LINE_BUFFER saying what the boundaries
+ of TEXT are.
+ If this function exists and returns NULL then call the value of
+ rl_completion_entry_function to try to match, otherwise use the
+ array of strings returned. */
+Function *rl_attempted_completion_function = (Function *)NULL;
+
+/* Local variable states what happened during the last completion attempt. */
+static int completion_changed_buffer = 0;
+
+/* Complete the word at or before point. You have supplied the function
+ that does the initial simple matching selection algorithm (see
+ completion_matches ()). The default is to do filename completion. */
+
+rl_complete (ignore, invoking_key)
+ int ignore, invoking_key;
+{
+ if (rl_last_func == rl_complete && !completion_changed_buffer)
+ rl_complete_internal ('?');
+ else
+ rl_complete_internal (TAB);
+}
+
+/* List the possible completions. See description of rl_complete (). */
+rl_possible_completions (ignore, invoking_key)
+{
+ rl_complete_internal ('?');
+}
+
+rl_insert_completions (ignore, invoking_key)
+ int ignore, invoking_key;
+{
+ rl_complete_internal ('*');
+}
+
+/* The user must press "y" or "n". Non-zero return means "y" pressed. */
+get_y_or_n ()
+{
+ int c;
+
+ for (;;)
+ {
+ c = rl_read_key ();
+ if (c == 'y' || c == 'Y')
+ return (1);
+ if (c == 'n' || c == 'N')
+ return (0);
+ if (c == ABORT_CHAR)
+ rl_abort ();
+ ding ();
+ }
+}
+
+/* Up to this many items will be displayed in response to a
+ possible-completions call. After that, we ask the user if
+ she is sure she wants to see them all. */
+int rl_completion_query_items = 100;
+
+/* The basic list of characters that signal a break between words for the
+ completer routine. The contents of this variable is what breaks words
+ in the shell, i.e. " \t\n\"\\'`@$><=" */
+char *rl_basic_word_break_characters = " \t\n\"\\'`@$><=;|&{(";
+
+/* The list of characters that signal a break between words for
+ rl_complete_internal. The default list is the contents of
+ rl_basic_word_break_characters. */
+char *rl_completer_word_break_characters = (char *)NULL;
+
+/* List of characters which can be used to quote a substring of the line.
+ Completion occurs on the entire substring, and within the substring
+ rl_completer_word_break_characters are treated as any other character,
+ unless they also appear within this list. */
+char *rl_completer_quote_characters = (char *)NULL;
+
+/* List of characters that are word break characters, but should be left
+ in TEXT when it is passed to the completion function. The shell uses
+ this to help determine what kind of completing to do. */
+char *rl_special_prefixes = (char *)NULL;
+
+/* If non-zero, then disallow duplicates in the matches. */
+int rl_ignore_completion_duplicates = 1;
+
+/* Non-zero means that the results of the matches are to be treated
+ as filenames. This is ALWAYS zero on entry, and can only be changed
+ within a completion entry finder function. */
+int rl_filename_completion_desired = 0;
+
+/* This function, if defined, is called by the completer when real
+ filename completion is done, after all the matching names have been
+ generated. It is passed a (char**) known as matches in the code below.
+ It consists of a NULL-terminated array of pointers to potential
+ matching strings. The 1st element (matches[0]) is the maximal
+ substring that is common to all matches. This function can re-arrange
+ the list of matches as required, but all elements of the array must be
+ free()'d if they are deleted. The main intent of this function is
+ to implement FIGNORE a la SunOS csh. */
+Function *rl_ignore_some_completions_function = (Function *)NULL;
+
+/* Complete the word at or before point.
+ WHAT_TO_DO says what to do with the completion.
+ `?' means list the possible completions.
+ TAB means do standard completion.
+ `*' means insert all of the possible completions. */
+rl_complete_internal (what_to_do)
+ int what_to_do;
+{
+ char *filename_completion_function ();
+ char **completion_matches (), **matches;
+ Function *our_func;
+ int start, scan, end, delimiter = 0;
+ char *text, *saved_line_buffer;
+ char quote_char = '\0';
+ char *replacement;
+
+ if (rl_line_buffer)
+ saved_line_buffer = savestring (rl_line_buffer);
+ else
+ saved_line_buffer = (char *)NULL;
+
+ if (rl_completion_entry_function)
+ our_func = rl_completion_entry_function;
+ else
+ our_func = (int (*)())filename_completion_function;
+
+ /* Only the completion entry function can change this. */
+ rl_filename_completion_desired = 0;
+
+ /* We now look backwards for the start of a filename/variable word. */
+ end = rl_point;
+
+ if (rl_point)
+ {
+ if (rl_completer_quote_characters)
+ {
+ /* We have a list of characters which can be used in pairs to
+ quote substrings for the completer. Try to find the start
+ of an unclosed quoted substring.
+ [FIXME: Doesn't yet handle '\' escapes to quote quotes. */
+ for (scan = 0; scan < end; scan++)
+ {
+ if (quote_char != '\0')
+ {
+ /* Ignore everything until the matching close quote char. */
+ if (rl_line_buffer[scan] == quote_char)
+ {
+ /* Found matching close quote. Abandon this substring. */
+ quote_char = '\0';
+ rl_point = end;
+ }
+ }
+ else if (strchr (rl_completer_quote_characters, rl_line_buffer[scan]))
+ {
+ /* Found start of a quoted substring. */
+ quote_char = rl_line_buffer[scan];
+ rl_point = scan + 1;
+ }
+ }
+ }
+ if (rl_point == end)
+ {
+ /* We didn't find an unclosed quoted substring upon which to do
+ completion, so use the word break characters to find the
+ substring on which to do completion. */
+ while (--rl_point &&
+ !strchr (rl_completer_word_break_characters,
+ rl_line_buffer[rl_point])) {;}
+ }
+
+ /* If we are at a word break, then advance past it. */
+ if (strchr (rl_completer_word_break_characters, rl_line_buffer[rl_point]))
+ {
+ /* If the character that caused the word break was a quoting
+ character, then remember it as the delimiter. */
+ if (strchr ("\"'", rl_line_buffer[rl_point]) && (end - rl_point) > 1)
+ delimiter = rl_line_buffer[rl_point];
+
+ /* If the character isn't needed to determine something special
+ about what kind of completion to perform, then advance past it. */
+
+ if (!rl_special_prefixes ||
+ !strchr (rl_special_prefixes, rl_line_buffer[rl_point]))
+ rl_point++;
+ }
+ }
+
+ start = rl_point;
+ rl_point = end;
+ text = rl_copy_text (start, end);
+
+ /* If the user wants to TRY to complete, but then wants to give
+ up and use the default completion function, they set the
+ variable rl_attempted_completion_function. */
+ if (rl_attempted_completion_function)
+ {
+ matches =
+ (char **)(*rl_attempted_completion_function) (text, start, end);
+
+ if (matches)
+ {
+ if (matches == (char **)-1)
+ matches = (char **)NULL;
+ our_func = (Function *)NULL;
+ goto after_usual_completion;
+ }
+ }
+
+ matches = completion_matches (text, our_func);
+
+ after_usual_completion:
+ free (text);
+
+ if (!matches)
+ ding ();
+ else
+ {
+ register int i;
+
+ some_matches:
+
+ /* It seems to me that in all the cases we handle we would like
+ to ignore duplicate possibilities. Scan for the text to
+ insert being identical to the other completions. */
+ if (rl_ignore_completion_duplicates)
+ {
+ char *lowest_common;
+ int j, newlen = 0;
+
+ /* Sort the items. */
+ /* It is safe to sort this array, because the lowest common
+ denominator found in matches[0] will remain in place. */
+ for (i = 0; matches[i]; i++);
+ qsort (matches, i, sizeof (char *), compare_strings);
+
+ /* Remember the lowest common denominator for it may be unique. */
+ lowest_common = savestring (matches[0]);
+
+ for (i = 0; matches[i + 1]; i++)
+ {
+ if (strcmp (matches[i], matches[i + 1]) == 0)
+ {
+ free (matches[i]);
+ matches[i] = (char *)-1;
+ }
+ else
+ newlen++;
+ }
+
+ /* We have marked all the dead slots with (char *)-1.
+ Copy all the non-dead entries into a new array. */
+ {
+ char **temp_array =
+ (char **)xmalloc ((3 + newlen) * sizeof (char *));
+
+ for (i = 1, j = 1; matches[i]; i++)
+ {
+ if (matches[i] != (char *)-1)
+ temp_array[j++] = matches[i];
+ }
+
+ temp_array[j] = (char *)NULL;
+
+ if (matches[0] != (char *)-1)
+ free (matches[0]);
+
+ free (matches);
+
+ matches = temp_array;
+ }
+
+ /* Place the lowest common denominator back in [0]. */
+ matches[0] = lowest_common;
+
+ /* If there is one string left, and it is identical to the
+ lowest common denominator, then the LCD is the string to
+ insert. */
+ if (j == 2 && strcmp (matches[0], matches[1]) == 0)
+ {
+ free (matches[1]);
+ matches[1] = (char *)NULL;
+ }
+ }
+
+ switch (what_to_do)
+ {
+ case TAB:
+ /* If we are matching filenames, then here is our chance to
+ do clever processing by re-examining the list. Call the
+ ignore function with the array as a parameter. It can
+ munge the array, deleting matches as it desires. */
+ if (rl_ignore_some_completions_function &&
+ our_func == (int (*)())filename_completion_function)
+ (void)(*rl_ignore_some_completions_function)(matches);
+
+ /* If we are doing completion on quoted substrings, and any matches
+ contain any of the completer_word_break_characters, then auto-
+ matically prepend the substring with a quote character (just pick
+ the first one from the list of such) if it does not already begin
+ with a quote string. FIXME: Need to remove any such automatically
+ inserted quote character when it no longer is necessary, such as
+ if we change the string we are completing on and the new set of
+ matches don't require a quoted substring. */
+ replacement = matches[0];
+
+ if (matches[0] && rl_completer_quote_characters && !quote_char &&
+ rl_filename_completion_desired)
+ {
+ int do_replace;
+
+ do_replace = 0;
+
+ /* If there is only a single match, see if we need to
+ quote it. */
+ if (!matches[1] &&
+ rl_strpbrk (matches[0], rl_completer_word_break_characters))
+ do_replace = 1;
+
+ /* If there are multiple matches, check to see if any of them
+ require that the substring be quoted. */
+ for (i = 1; matches[i] != NULL; i++)
+ if (rl_strpbrk (matches[i], rl_completer_word_break_characters))
+ {
+ do_replace = 1;
+ break;
+ }
+ if (do_replace)
+ {
+#if defined (SHELL)
+ /* XXX - experimental */
+ /* Single-quote the replacement, since we found an
+ embedded word break character in a potential match. */
+ char *rtext;
+ extern char *single_quote (); /* in builtins/common.c */
+
+ rtext = single_quote (matches[0]);
+ replacement = (char *)alloca (strlen (rtext) + 1);
+ strcpy (replacement, rtext);
+ free (rtext);
+#else /* !SHELL */
+ /* Found an embedded word break character in a potential
+ match, so we need to prepend a quote character if we
+ are replacing the completion string. */
+ replacement = (char *)alloca (strlen (matches[0]) + 2);
+ quote_char = *rl_completer_quote_characters;
+ *replacement = quote_char;
+ strcpy (replacement + 1, matches[0]);
+#endif /* SHELL */
+ }
+ }
+ if (replacement)
+ {
+ rl_delete_text (start, rl_point);
+ rl_point = start;
+ rl_insert_text (replacement);
+ }
+
+ /* If there are more matches, ring the bell to indicate.
+ If this was the only match, and we are hacking files,
+ check the file to see if it was a directory. If so,
+ add a '/' to the name. If not, and we are at the end
+ of the line, then add a space. */
+ if (matches[1])
+ {
+ if (rl_editing_mode != vi_mode)
+ ding (); /* There are other matches remaining. */
+ }
+ else
+ {
+ char temp_string[4];
+ int temp_string_index = 0;
+
+ if (quote_char)
+ temp_string[temp_string_index++] = quote_char;
+
+ temp_string[temp_string_index++] = delimiter ? delimiter : ' ';
+ temp_string[temp_string_index++] = '\0';
+
+ if (rl_filename_completion_desired)
+ {
+ struct stat finfo;
+ char *filename = tilde_expand (matches[0]);
+
+ if ((stat (filename, &finfo) == 0) &&
+ S_ISDIR (finfo.st_mode))
+ {
+ if (rl_line_buffer[rl_point] != '/')
+ rl_insert_text ("/");
+ }
+ else
+ {
+ if (rl_point == rl_end)
+ rl_insert_text (temp_string);
+ }
+ free (filename);
+ }
+ else
+ {
+ if (rl_point == rl_end)
+ rl_insert_text (temp_string);
+ }
+ }
+ break;
+
+ case '*':
+ {
+ int i = 1;
+
+ rl_delete_text (start, rl_point);
+ rl_point = start;
+ rl_begin_undo_group ();
+ if (matches[1])
+ {
+ while (matches[i])
+ {
+ rl_insert_text (matches[i++]);
+ rl_insert_text (" ");
+ }
+ }
+ else
+ {
+ rl_insert_text (matches[0]);
+ rl_insert_text (" ");
+ }
+ rl_end_undo_group ();
+ }
+ break;
+
+ case '?':
+ {
+ int len, count, limit, max = 0;
+ int j, k, l;
+
+ /* Handle simple case first. What if there is only one answer? */
+ if (!matches[1])
+ {
+ char *temp;
+
+ if (rl_filename_completion_desired)
+ temp = strrchr (matches[0], '/');
+ else
+ temp = (char *)NULL;
+
+ if (!temp)
+ temp = matches[0];
+ else
+ temp++;
+
+ crlf ();
+ fprintf (rl_outstream, "%s", temp);
+#if defined (VISIBLE_STATS)
+ if (rl_filename_completion_desired && rl_visible_stats)
+ {
+ int extension_char;
+
+ extension_char = stat_char (matches[0]);
+ if (extension_char)
+ putc (extension_char, rl_outstream);
+ }
+#endif /* VISIBLE_STATS */
+ crlf ();
+ goto restart;
+ }
+
+ /* There is more than one answer. Find out how many there are,
+ and find out what the maximum printed length of a single entry
+ is. */
+ for (i = 1; matches[i]; i++)
+ {
+ char *temp;
+ int name_length;
+
+ /* If we are hacking filenames, then only count the characters
+ after the last slash in the pathname. */
+ if (rl_filename_completion_desired)
+ temp = strrchr (matches[i], '/');
+ else
+ temp = (char *)NULL;
+
+ if (!temp)
+ temp = matches[i];
+ else
+ temp++;
+
+ name_length = strlen (temp);
+
+ if (name_length > max)
+ max = name_length;
+ }
+
+ len = i - 1;
+
+ /* If there are many items, then ask the user if she
+ really wants to see them all. */
+ if (len >= rl_completion_query_items)
+ {
+ crlf ();
+ fprintf (rl_outstream,
+ "There are %d possibilities. Do you really", len);
+ crlf ();
+ fprintf (rl_outstream, "wish to see them all? (y or n)");
+ fflush (rl_outstream);
+ if (!get_y_or_n ())
+ {
+ crlf ();
+ goto restart;
+ }
+ }
+ /* How many items of MAX length can we fit in the screen window? */
+ max += 2;
+ limit = screenwidth / max;
+ if (limit != 1 && (limit * max == screenwidth))
+ limit--;
+
+ /* Avoid a possible floating exception. If max > screenwidth,
+ limit will be 0 and a divide-by-zero fault will result. */
+ if (limit == 0)
+ limit = 1;
+
+ /* How many iterations of the printing loop? */
+ count = (len + (limit - 1)) / limit;
+
+ /* Watch out for special case. If LEN is less than LIMIT, then
+ just do the inner printing loop. */
+ if (len < limit)
+ count = 1;
+
+ /* Sort the items if they are not already sorted. */
+ if (!rl_ignore_completion_duplicates)
+ qsort (matches, len, sizeof (char *), compare_strings);
+
+ /* Print the sorted items, up-and-down alphabetically, like
+ ls might. */
+ crlf ();
+
+ for (i = 1; i < count + 1; i++)
+ {
+ for (j = 0, l = i; j < limit; j++)
+ {
+ if (l > len || !matches[l])
+ {
+ break;
+ }
+ else
+ {
+ char *temp = (char *)NULL;
+ int printed_length;
+
+ if (rl_filename_completion_desired)
+ temp = strrchr (matches[l], '/');
+
+ if (!temp)
+ temp = matches[l];
+ else
+ temp++;
+
+ printed_length = strlen (temp);
+ fprintf (rl_outstream, "%s", temp);
+
+#if defined (VISIBLE_STATS)
+ if (rl_filename_completion_desired &&
+ rl_visible_stats)
+ {
+ int extension_char;
+
+ extension_char = stat_char (matches[l]);
+
+ if (extension_char)
+ {
+ putc (extension_char, rl_outstream);
+ printed_length++;
+ }
+ }
+#endif /* VISIBLE_STATS */
+
+ if (j + 1 < limit)
+ {
+ for (k = 0; k < max - printed_length; k++)
+ putc (' ', rl_outstream);
+ }
+ }
+ l += count;
+ }
+ crlf ();
+ }
+ restart:
+
+ rl_on_new_line ();
+ }
+ break;
+
+ default:
+ abort ();
+ }
+
+ for (i = 0; matches[i]; i++)
+ free (matches[i]);
+ free (matches);
+ }
+
+ /* Check to see if the line has changed through all of this manipulation. */
+ if (saved_line_buffer)
+ {
+ if (strcmp (rl_line_buffer, saved_line_buffer) != 0)
+ completion_changed_buffer = 1;
+ else
+ completion_changed_buffer = 0;
+
+ free (saved_line_buffer);
+ }
+}
+
+#if defined (VISIBLE_STATS)
+/* Return the character which best describes FILENAME.
+ `@' for symbolic links
+ `/' for directories
+ `*' for executables
+ `=' for sockets */
+static int
+stat_char (filename)
+ char *filename;
+{
+ struct stat finfo;
+ int character = 0;
+
+ if (stat (filename, &finfo) == -1)
+ return (character);
+
+ if (S_ISDIR (finfo.st_mode))
+ character = '/';
+#if defined (S_ISLNK)
+ else if (S_ISLNK (finfo.st_mode))
+ character = '@';
+#endif /* S_ISLNK */
+#if defined (S_ISSOCK)
+ else if (S_ISSOCK (finfo.st_mode))
+ character = '=';
+#endif /* S_ISSOCK */
+ else if (S_ISREG (finfo.st_mode))
+ {
+ if (access (filename, X_OK) == 0)
+ character = '*';
+ }
+ return (character);
+}
+#endif /* VISIBLE_STATS */
+
+/* Stupid comparison routine for qsort () ing strings. */
+static int
+compare_strings (s1, s2)
+ char **s1, **s2;
+{
+ return (strcmp (*s1, *s2));
+}
+
+/* A completion function for usernames.
+ TEXT contains a partial username preceded by a random
+ character (usually `~'). */
+char *
+username_completion_function (text, state)
+ int state;
+ char *text;
+{
+#ifdef __GO32__
+ return (char *)NULL;
+#else /* !__GO32__ */
+ static char *username = (char *)NULL;
+ static struct passwd *entry;
+ static int namelen, first_char, first_char_loc;
+
+ if (!state)
+ {
+ if (username)
+ free (username);
+
+ first_char = *text;
+
+ if (first_char == '~')
+ first_char_loc = 1;
+ else
+ first_char_loc = 0;
+
+ username = savestring (&text[first_char_loc]);
+ namelen = strlen (username);
+ setpwent ();
+ }
+
+ while (entry = getpwent ())
+ {
+ if (strncmp (username, entry->pw_name, namelen) == 0)
+ break;
+ }
+
+ if (!entry)
+ {
+ endpwent ();
+ return ((char *)NULL);
+ }
+ else
+ {
+ char *value = (char *)xmalloc (2 + strlen (entry->pw_name));
+
+ *value = *text;
+
+ strcpy (value + first_char_loc, entry->pw_name);
+
+ if (first_char == '~')
+ rl_filename_completion_desired = 1;
+
+ return (value);
+ }
+#endif /* !__GO32__ */
+}
+
+\f
+/* **************************************************************** */
+/* */
+/* Completion */
+/* */
+/* **************************************************************** */
+
+/* Non-zero means that case is not significant in completion. */
+int completion_case_fold = 0;
+
+/* Return an array of (char *) which is a list of completions for TEXT.
+ If there are no completions, return a NULL pointer.
+ The first entry in the returned array is the substitution for TEXT.
+ The remaining entries are the possible completions.
+ The array is terminated with a NULL pointer.
+
+ ENTRY_FUNCTION is a function of two args, and returns a (char *).
+ The first argument is TEXT.
+ The second is a state argument; it should be zero on the first call, and
+ non-zero on subsequent calls. It returns a NULL pointer to the caller
+ when there are no more matches.
+ */
+char **
+completion_matches (text, entry_function)
+ char *text;
+ char *(*entry_function) ();
+{
+ /* Number of slots in match_list. */
+ int match_list_size;
+
+ /* The list of matches. */
+ char **match_list =
+ (char **)xmalloc (((match_list_size = 10) + 1) * sizeof (char *));
+
+ /* Number of matches actually found. */
+ int matches = 0;
+
+ /* Temporary string binder. */
+ char *string;
+
+ match_list[1] = (char *)NULL;
+
+ while (string = (*entry_function) (text, matches))
+ {
+ if (matches + 1 == match_list_size)
+ match_list = (char **)xrealloc
+ (match_list, ((match_list_size += 10) + 1) * sizeof (char *));
+
+ match_list[++matches] = string;
+ match_list[matches + 1] = (char *)NULL;
+ }
+
+ /* If there were any matches, then look through them finding out the
+ lowest common denominator. That then becomes match_list[0]. */
+ if (matches)
+ {
+ register int i = 1;
+ int low = 100000; /* Count of max-matched characters. */
+
+ /* If only one match, just use that. */
+ if (matches == 1)
+ {
+ match_list[0] = match_list[1];
+ match_list[1] = (char *)NULL;
+ }
+ else
+ {
+ /* Otherwise, compare each member of the list with
+ the next, finding out where they stop matching. */
+
+ while (i < matches)
+ {
+ register int c1, c2, si;
+
+ if (completion_case_fold)
+ {
+ for (si = 0;
+ (c1 = to_lower(match_list[i][si])) &&
+ (c2 = to_lower(match_list[i + 1][si]));
+ si++)
+ if (c1 != c2) break;
+ }
+ else
+ {
+ for (si = 0;
+ (c1 = match_list[i][si]) &&
+ (c2 = match_list[i + 1][si]);
+ si++)
+ if (c1 != c2) break;
+ }
+
+ if (low > si) low = si;
+ i++;
+ }
+ match_list[0] = (char *)xmalloc (low + 1);
+ strncpy (match_list[0], match_list[1], low);
+ match_list[0][low] = '\0';
+ }
+ }
+ else /* There were no matches. */
+ {
+ free (match_list);
+ match_list = (char **)NULL;
+ }
+ return (match_list);
+}
+
+/* Okay, now we write the entry_function for filename completion. In the
+ general case. Note that completion in the shell is a little different
+ because of all the pathnames that must be followed when looking up the
+ completion for a command. */
+char *
+filename_completion_function (text, state)
+ int state;
+ char *text;
+{
+ static DIR *directory;
+ static char *filename = (char *)NULL;
+ static char *dirname = (char *)NULL;
+ static char *users_dirname = (char *)NULL;
+ static int filename_len;
+
+ dirent *entry = (dirent *)NULL;
+
+ /* If we don't have any state, then do some initialization. */
+ if (!state)
+ {
+ char *temp;
+
+ if (dirname) free (dirname);
+ if (filename) free (filename);
+ if (users_dirname) free (users_dirname);
+
+ filename = savestring (text);
+ if (!*text) text = ".";
+ dirname = savestring (text);
+
+ temp = strrchr (dirname, '/');
+
+ if (temp)
+ {
+ strcpy (filename, ++temp);
+ *temp = '\0';
+ }
+ else
+ strcpy (dirname, ".");
+
+ /* We aren't done yet. We also support the "~user" syntax. */
+
+ /* Save the version of the directory that the user typed. */
+ users_dirname = savestring (dirname);
+ {
+ char *temp_dirname;
+
+ temp_dirname = tilde_expand (dirname);
+ free (dirname);
+ dirname = temp_dirname;
+
+ if (rl_symbolic_link_hook)
+ (*rl_symbolic_link_hook) (&dirname);
+ }
+ directory = opendir (dirname);
+ filename_len = strlen (filename);
+
+ rl_filename_completion_desired = 1;
+ }
+
+ /* At this point we should entertain the possibility of hacking wildcarded
+ filenames, like /usr/man/man<WILD>/te<TAB>. If the directory name
+ contains globbing characters, then build an array of directories, and
+ then map over that list while completing. */
+ /* *** UNIMPLEMENTED *** */
+
+ /* Now that we have some state, we can read the directory. */
+
+ while (directory && (entry = readdir (directory)))
+ {
+ /* Special case for no filename.
+ All entries except "." and ".." match. */
+ if (!filename_len)
+ {
+ if ((strcmp (entry->d_name, ".") != 0) &&
+ (strcmp (entry->d_name, "..") != 0))
+ break;
+ }
+ else
+ {
+ /* Otherwise, if these match upto the length of filename, then
+ it is a match. */
+ if (((int)D_NAMLEN (entry)) >= filename_len &&
+ (entry->d_name[0] == filename[0]) &&
+ (strncmp (filename, entry->d_name, filename_len) == 0))
+ {
+ break;
+ }
+ }
+ }
+
+ if (!entry)
+ {
+ if (directory)
+ {
+ closedir (directory);
+ directory = (DIR *)NULL;
+ }
+
+ if (dirname)
+ {
+ free (dirname);
+ dirname = (char *)NULL;
+ }
+ if (filename)
+ {
+ free (filename);
+ filename = (char *)NULL;
+ }
+ if (users_dirname)
+ {
+ free (users_dirname);
+ users_dirname = (char *)NULL;
+ }
+
+ return (char *)NULL;
+ }
+ else
+ {
+ char *temp;
+
+ if (dirname && (strcmp (dirname, ".") != 0))
+ {
+ if (rl_complete_with_tilde_expansion && *users_dirname == '~')
+ {
+ int dirlen = strlen (dirname);
+ temp = (char *)xmalloc (2 + dirlen + D_NAMLEN (entry));
+ strcpy (temp, dirname);
+ /* Canonicalization cuts off any final slash present. We need
+ to add it back. */
+ if (dirname[dirlen - 1] != '/')
+ {
+ temp[dirlen] = '/';
+ temp[dirlen + 1] = '\0';
+ }
+ }
+ else
+ {
+ temp = (char *)
+ xmalloc (1 + strlen (users_dirname) + D_NAMLEN (entry));
+ strcpy (temp, users_dirname);
+ }
+
+ strcat (temp, entry->d_name);
+ }
+ else
+ {
+ temp = (savestring (entry->d_name));
+ }
+ return (temp);
+ }
+}
+
+/* A function for simple tilde expansion. */
+int
+rl_tilde_expand (ignore, key)
+ int ignore, key;
+{
+ register int start, end;
+ char *homedir;
+
+ end = rl_point;
+ start = end - 1;
+
+ if (rl_point == rl_end && rl_line_buffer[rl_point] == '~')
+ {
+ homedir = tilde_expand ("~");
+ goto insert;
+ }
+ else if (rl_line_buffer[start] != '~')
+ {
+ for (; !whitespace (rl_line_buffer[start]) && start >= 0; start--);
+ start++;
+ }
+
+ end = start;
+ do
+ {
+ end++;
+ }
+ while (!whitespace (rl_line_buffer[end]) && end < rl_end);
+
+ if (whitespace (rl_line_buffer[end]) || end >= rl_end)
+ end--;
+
+ /* If the first character of the current word is a tilde, perform
+ tilde expansion and insert the result. If not a tilde, do
+ nothing. */
+ if (rl_line_buffer[start] == '~')
+ {
+ char *temp;
+ int len;
+
+ len = end - start + 1;
+ temp = (char *)alloca (len + 1);
+ strncpy (temp, rl_line_buffer + start, len);
+ temp[len] = '\0';
+ homedir = tilde_expand (temp);
+
+ insert:
+ rl_begin_undo_group ();
+ rl_delete_text (start, end + 1);
+ rl_point = start;
+ rl_insert_text (homedir);
+ rl_end_undo_group ();
+ }
+
+ return (0);
+}
+
+/* Find the first occurrence in STRING1 of any character from STRING2.
+ Return a pointer to the character in STRING1. */
+static char *
+rl_strpbrk (string1, string2)
+ char *string1, *string2;
+{
+ register char *scan;
+
+ for (; *string1; string1++)
+ {
+ for (scan = string2; *scan; scan++)
+ {
+ if (*string1 == *scan)
+ {
+ return (string1);
+ }
+ }
+ }
+ return ((char *)NULL);
+}
+
+#if defined (STATIC_MALLOC)
+\f
+/* **************************************************************** */
+/* */
+/* xmalloc and xrealloc () */
+/* */
+/* **************************************************************** */
+
+static void memory_error_and_abort ();
+
+static char *
+xmalloc (bytes)
+ int bytes;
+{
+ char *temp = (char *)malloc (bytes);
+
+ if (!temp)
+ memory_error_and_abort ();
+ return (temp);
+}
+
+static char *
+xrealloc (pointer, bytes)
+ char *pointer;
+ int bytes;
+{
+ char *temp;
+
+ if (!pointer)
+ temp = (char *)malloc (bytes);
+ else
+ temp = (char *)realloc (pointer, bytes);
+
+ if (!temp)
+ memory_error_and_abort ();
+
+ return (temp);
+}
+
+static void
+memory_error_and_abort ()
+{
+ fprintf (stderr, "readline: Out of virtual memory!\n");
+ abort ();
+}
+#endif /* STATIC_MALLOC */
--- /dev/null
+/* display.c -- readline redisplay facility. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
+
+ The GNU Readline Library is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 1, or
+ (at your option) any later version.
+
+ The GNU Readline Library is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+#include <sys/types.h>
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+#if !defined (strrchr)
+extern char *strrchr ();
+#endif /* !strchr */
+
+/* Global and pseudo-global variables and functions
+ imported from readline.c. */
+extern char *rl_prompt;
+extern int readline_echoing_p;
+extern char *term_clreol, *term_im, *term_ic, *term_ei, *term_DC;
+/* Termcap variables. */
+extern char *term_up, *term_dc, *term_cr, *term_IC;
+extern int screenheight, screenwidth, terminal_can_insert;
+
+extern void _rl_output_some_chars ();
+extern void _rl_output_character_function ();
+
+extern int _rl_convert_meta_chars_to_ascii;
+extern int _rl_horizontal_scroll_mode;
+extern int _rl_mark_modified_lines;
+extern int _rl_prefer_visible_bell;
+
+/* Pseudo-global functions (local to the readline library) exported
+ by this file. */
+void _rl_move_cursor_relative (), _rl_output_some_chars ();
+void _rl_move_vert ();
+
+static void update_line (), clear_to_eol ();
+static void delete_chars (), insert_some_chars ();
+
+extern char *xmalloc (), *xrealloc ();
+
+/* **************************************************************** */
+/* */
+/* Display stuff */
+/* */
+/* **************************************************************** */
+
+/* This is the stuff that is hard for me. I never seem to write good
+ display routines in C. Let's see how I do this time. */
+
+/* (PWP) Well... Good for a simple line updater, but totally ignores
+ the problems of input lines longer than the screen width.
+
+ update_line and the code that calls it makes a multiple line,
+ automatically wrapping line update. Carefull attention needs
+ to be paid to the vertical position variables.
+
+ handling of terminals with autowrap on (incl. DEC braindamage)
+ could be improved a bit. Right now I just cheat and decrement
+ screenwidth by one. */
+
+/* Keep two buffers; one which reflects the current contents of the
+ screen, and the other to draw what we think the new contents should
+ be. Then compare the buffers, and make whatever changes to the
+ screen itself that we should. Finally, make the buffer that we
+ just drew into be the one which reflects the current contents of the
+ screen, and place the cursor where it belongs.
+
+ Commands that want to can fix the display themselves, and then let
+ this function know that the display has been fixed by setting the
+ RL_DISPLAY_FIXED variable. This is good for efficiency. */
+
+/* What YOU turn on when you have handled all redisplay yourself. */
+int rl_display_fixed = 0;
+
+/* The stuff that gets printed out before the actual text of the line.
+ This is usually pointing to rl_prompt. */
+char *rl_display_prompt = (char *)NULL;
+
+/* Pseudo-global variables declared here. */
+/* The visible cursor position. If you print some text, adjust this. */
+int _rl_last_c_pos = 0;
+int _rl_last_v_pos = 0;
+
+/* Number of lines currently on screen minus 1. */
+int _rl_vis_botlin = 0;
+
+/* Variables used only in this file. */
+/* The last left edge of text that was displayed. This is used when
+ doing horizontal scrolling. It shifts in thirds of a screenwidth. */
+static int last_lmargin = 0;
+
+/* The line display buffers. One is the line currently displayed on
+ the screen. The other is the line about to be displayed. */
+static char *visible_line = (char *)NULL;
+static char *invisible_line = (char *)NULL;
+
+/* A buffer for `modeline' messages. */
+static char msg_buf[128];
+
+/* Non-zero forces the redisplay even if we thought it was unnecessary. */
+static int forced_display = 0;
+
+/* Default and initial buffer size. Can grow. */
+static int line_size = 1024;
+
+/* Basic redisplay algorithm. */
+rl_redisplay ()
+{
+ register int in, out, c, linenum;
+ register char *line = invisible_line;
+ char *prompt_this_line;
+ int c_pos = 0;
+ int inv_botlin = 0; /* Number of lines in newly drawn buffer. */
+
+ if (!readline_echoing_p)
+ return;
+
+ if (!rl_display_prompt)
+ rl_display_prompt = "";
+
+ if (!invisible_line)
+ {
+ visible_line = (char *)xmalloc (line_size);
+ invisible_line = (char *)xmalloc (line_size);
+ line = invisible_line;
+ for (in = 0; in < line_size; in++)
+ {
+ visible_line[in] = 0;
+ invisible_line[in] = 1;
+ }
+ rl_on_new_line ();
+ }
+
+ /* Draw the line into the buffer. */
+ c_pos = -1;
+
+ /* Mark the line as modified or not. We only do this for history
+ lines. */
+ out = 0;
+ if (_rl_mark_modified_lines && current_history () && rl_undo_list)
+ {
+ line[out++] = '*';
+ line[out] = '\0';
+ }
+
+ /* If someone thought that the redisplay was handled, but the currently
+ visible line has a different modification state than the one about
+ to become visible, then correct the caller's misconception. */
+ if (visible_line[0] != invisible_line[0])
+ rl_display_fixed = 0;
+
+ prompt_this_line = strrchr (rl_display_prompt, '\n');
+ if (!prompt_this_line)
+ prompt_this_line = rl_display_prompt;
+ else
+ {
+ prompt_this_line++;
+ if (forced_display)
+ _rl_output_some_chars
+ (rl_display_prompt, prompt_this_line - rl_display_prompt);
+ }
+
+ strncpy (line + out, prompt_this_line, strlen (prompt_this_line));
+ out += strlen (prompt_this_line);
+ line[out] = '\0';
+
+ for (in = 0; in < rl_end; in++)
+ {
+ c = (unsigned char)rl_line_buffer[in];
+
+ if (out + 8 >= line_size) /* XXX - 8 for \t */
+ {
+ line_size *= 2;
+ visible_line = (char *)xrealloc (visible_line, line_size);
+ invisible_line = (char *)xrealloc (invisible_line, line_size);
+ line = invisible_line;
+ }
+
+ if (in == rl_point)
+ c_pos = out;
+
+ if (META_CHAR (c))
+ {
+ if (_rl_convert_meta_chars_to_ascii)
+ {
+ sprintf (line + out, "\\%o", c);
+ out += 4;
+ }
+ else
+ line[out++] = c;
+ }
+#define DISPLAY_TABS
+#if defined (DISPLAY_TABS)
+ else if (c == '\t')
+ {
+ register int newout = (out | (int)7) + 1;
+ while (out < newout)
+ line[out++] = ' ';
+ }
+#endif
+ else if (c < ' ')
+ {
+ line[out++] = '^';
+ line[out++] = UNCTRL (c); /* XXX was c ^ 0x40 */
+ }
+ else if (c == 127)
+ {
+ line[out++] = '^';
+ line[out++] = '?';
+ }
+ else
+ line[out++] = c;
+ }
+ line[out] = '\0';
+ if (c_pos < 0)
+ c_pos = out;
+
+ /* PWP: now is when things get a bit hairy. The visible and invisible
+ line buffers are really multiple lines, which would wrap every
+ (screenwidth - 1) characters. Go through each in turn, finding
+ the changed region and updating it. The line order is top to bottom. */
+
+ /* If we can move the cursor up and down, then use multiple lines,
+ otherwise, let long lines display in a single terminal line, and
+ horizontally scroll it. */
+
+ if (!_rl_horizontal_scroll_mode && term_up && *term_up)
+ {
+ int total_screen_chars = (screenwidth * screenheight);
+
+ if (!rl_display_fixed || forced_display)
+ {
+ forced_display = 0;
+
+ /* If we have more than a screenful of material to display, then
+ only display a screenful. We should display the last screen,
+ not the first. I'll fix this in a minute. */
+ if (out >= total_screen_chars)
+ out = total_screen_chars - 1;
+
+ /* Number of screen lines to display. */
+ inv_botlin = out / screenwidth;
+
+ /* For each line in the buffer, do the updating display. */
+ for (linenum = 0; linenum <= inv_botlin; linenum++)
+ update_line (linenum > _rl_vis_botlin ? ""
+ : &visible_line[linenum * screenwidth],
+ &invisible_line[linenum * screenwidth],
+ linenum);
+
+ /* We may have deleted some lines. If so, clear the left over
+ blank ones at the bottom out. */
+ if (_rl_vis_botlin > inv_botlin)
+ {
+ char *tt;
+ for (; linenum <= _rl_vis_botlin; linenum++)
+ {
+ tt = &visible_line[linenum * screenwidth];
+ _rl_move_vert (linenum);
+ _rl_move_cursor_relative (0, tt);
+ clear_to_eol
+ ((linenum == _rl_vis_botlin) ? strlen (tt) : screenwidth);
+ }
+ }
+ _rl_vis_botlin = inv_botlin;
+
+ /* Move the cursor where it should be. */
+ _rl_move_vert (c_pos / screenwidth);
+ _rl_move_cursor_relative (c_pos % screenwidth,
+ &invisible_line[(c_pos / screenwidth) * screenwidth]);
+ }
+ }
+ else /* Do horizontal scrolling. */
+ {
+ int lmargin;
+
+ /* Always at top line. */
+ _rl_last_v_pos = 0;
+
+ /* If the display position of the cursor would be off the edge
+ of the screen, start the display of this line at an offset that
+ leaves the cursor on the screen. */
+ if (c_pos - last_lmargin > screenwidth - 2)
+ lmargin = (c_pos / (screenwidth / 3) - 2) * (screenwidth / 3);
+ else if (c_pos - last_lmargin < 1)
+ lmargin = ((c_pos - 1) / (screenwidth / 3)) * (screenwidth / 3);
+ else
+ lmargin = last_lmargin;
+
+ /* If the first character on the screen isn't the first character
+ in the display line, indicate this with a special character. */
+ if (lmargin > 0)
+ line[lmargin] = '<';
+
+ if (lmargin + screenwidth < out)
+ line[lmargin + screenwidth - 1] = '>';
+
+ if (!rl_display_fixed || forced_display || lmargin != last_lmargin)
+ {
+ forced_display = 0;
+ update_line (&visible_line[last_lmargin],
+ &invisible_line[lmargin], 0);
+
+ _rl_move_cursor_relative (c_pos - lmargin, &invisible_line[lmargin]);
+ last_lmargin = lmargin;
+ }
+ }
+ fflush (rl_outstream);
+
+ /* Swap visible and non-visible lines. */
+ {
+ char *temp = visible_line;
+ visible_line = invisible_line;
+ invisible_line = temp;
+ rl_display_fixed = 0;
+ }
+}
+
+/* PWP: update_line() is based on finding the middle difference of each
+ line on the screen; vis:
+
+ /old first difference
+ /beginning of line | /old last same /old EOL
+ v v v v
+old: eddie> Oh, my little gruntle-buggy is to me, as lurgid as
+new: eddie> Oh, my little buggy says to me, as lurgid as
+ ^ ^ ^ ^
+ \beginning of line | \new last same \new end of line
+ \new first difference
+
+ All are character pointers for the sake of speed. Special cases for
+ no differences, as well as for end of line additions must be handeled.
+
+ Could be made even smarter, but this works well enough */
+static void
+update_line (old, new, current_line)
+ register char *old, *new;
+ int current_line;
+{
+ register char *ofd, *ols, *oe, *nfd, *nls, *ne;
+ int lendiff, wsatend;
+
+ /* Find first difference. */
+ for (ofd = old, nfd = new;
+ (ofd - old < screenwidth) && *ofd && (*ofd == *nfd);
+ ofd++, nfd++)
+ ;
+
+ /* Move to the end of the screen line. */
+ for (oe = ofd; ((oe - old) < screenwidth) && *oe; oe++);
+ for (ne = nfd; ((ne - new) < screenwidth) && *ne; ne++);
+
+ /* If no difference, continue to next line. */
+ if (ofd == oe && nfd == ne)
+ return;
+
+ wsatend = 1; /* flag for trailing whitespace */
+ ols = oe - 1; /* find last same */
+ nls = ne - 1;
+ while ((ols > ofd) && (nls > nfd) && (*ols == *nls))
+ {
+ if (*ols != ' ')
+ wsatend = 0;
+ ols--;
+ nls--;
+ }
+
+ if (wsatend)
+ {
+ ols = oe;
+ nls = ne;
+ }
+ else if (*ols != *nls)
+ {
+ if (*ols) /* don't step past the NUL */
+ ols++;
+ if (*nls)
+ nls++;
+ }
+
+ _rl_move_vert (current_line);
+ _rl_move_cursor_relative (ofd - old, old);
+
+ /* if (len (new) > len (old)) */
+ lendiff = (nls - nfd) - (ols - ofd);
+
+ /* Insert (diff (len (old), len (new)) ch. */
+ if (lendiff > 0)
+ {
+ if (terminal_can_insert)
+ {
+ /* Sometimes it is cheaper to print the characters rather than
+ use the terminal's capabilities. */
+ if ((2 * (ne - nfd)) < lendiff && !term_IC)
+ {
+ _rl_output_some_chars (nfd, (ne - nfd));
+ _rl_last_c_pos += (ne - nfd);
+ }
+ else
+ {
+ if (*ols)
+ {
+ insert_some_chars (nfd, lendiff);
+ _rl_last_c_pos += lendiff;
+ }
+ else
+ {
+ /* At the end of a line the characters do not have to
+ be "inserted". They can just be placed on the screen. */
+ _rl_output_some_chars (nfd, lendiff);
+ _rl_last_c_pos += lendiff;
+ }
+ /* Copy (new) chars to screen from first diff to last match. */
+ if (((nls - nfd) - lendiff) > 0)
+ {
+ _rl_output_some_chars (&nfd[lendiff], ((nls - nfd) - lendiff));
+ _rl_last_c_pos += ((nls - nfd) - lendiff);
+ }
+ }
+ }
+ else
+ { /* cannot insert chars, write to EOL */
+ _rl_output_some_chars (nfd, (ne - nfd));
+ _rl_last_c_pos += (ne - nfd);
+ }
+ }
+ else /* Delete characters from line. */
+ {
+ /* If possible and inexpensive to use terminal deletion, then do so. */
+ if (term_dc && (2 * (ne - nfd)) >= (-lendiff))
+ {
+ if (lendiff)
+ delete_chars (-lendiff); /* delete (diff) characters */
+
+ /* Copy (new) chars to screen from first diff to last match */
+ if ((nls - nfd) > 0)
+ {
+ _rl_output_some_chars (nfd, (nls - nfd));
+ _rl_last_c_pos += (nls - nfd);
+ }
+ }
+ /* Otherwise, print over the existing material. */
+ else
+ {
+ _rl_output_some_chars (nfd, (ne - nfd));
+ _rl_last_c_pos += (ne - nfd);
+ clear_to_eol ((oe - old) - (ne - new));
+ }
+ }
+}
+
+/* Tell the update routines that we have moved onto a new (empty) line. */
+rl_on_new_line ()
+{
+ if (visible_line)
+ visible_line[0] = '\0';
+
+ _rl_last_c_pos = _rl_last_v_pos = 0;
+ _rl_vis_botlin = last_lmargin = 0;
+}
+
+/* Actually update the display, period. */
+rl_forced_update_display ()
+{
+ if (visible_line)
+ {
+ register char *temp = visible_line;
+
+ while (*temp) *temp++ = '\0';
+ }
+ rl_on_new_line ();
+ forced_display++;
+ rl_redisplay ();
+}
+
+/* Move the cursor from _rl_last_c_pos to NEW, which are buffer indices.
+ DATA is the contents of the screen line of interest; i.e., where
+ the movement is being done. */
+void
+_rl_move_cursor_relative (new, data)
+ int new;
+ char *data;
+{
+ register int i;
+
+ /* It may be faster to output a CR, and then move forwards instead
+ of moving backwards. */
+ if (new + 1 < _rl_last_c_pos - new)
+ {
+#ifdef __MSDOS__
+ putc('\r', rl_outstream);
+#else
+ tputs (term_cr, 1, _rl_output_character_function);
+#endif
+ _rl_last_c_pos = 0;
+ }
+
+ if (_rl_last_c_pos == new) return;
+
+ if (_rl_last_c_pos < new)
+ {
+ /* Move the cursor forward. We do it by printing the command
+ to move the cursor forward if there is one, else print that
+ portion of the output buffer again. Which is cheaper? */
+
+ /* The above comment is left here for posterity. It is faster
+ to print one character (non-control) than to print a control
+ sequence telling the terminal to move forward one character.
+ That kind of control is for people who don't know what the
+ data is underneath the cursor. */
+#if defined (HACK_TERMCAP_MOTION)
+ extern char *term_forward_char;
+
+ if (term_forward_char)
+ for (i = _rl_last_c_pos; i < new; i++)
+ tputs (term_forward_char, 1, _rl_output_character_function);
+ else
+ for (i = _rl_last_c_pos; i < new; i++)
+ putc (data[i], rl_outstream);
+#else
+ for (i = _rl_last_c_pos; i < new; i++)
+ putc (data[i], rl_outstream);
+#endif /* HACK_TERMCAP_MOTION */
+ }
+ else
+ backspace (_rl_last_c_pos - new);
+ _rl_last_c_pos = new;
+}
+
+/* PWP: move the cursor up or down. */
+void
+_rl_move_vert (to)
+ int to;
+{
+ register int delta, i;
+
+ if (_rl_last_v_pos == to || to > screenheight)
+ return;
+
+#ifdef __GO32__
+ {
+ int row, col;
+ ScreenGetCursor (&row, &col);
+ ScreenSetCursor ((row + to - _rl_last_v_pos), col);
+ }
+#else /* __GO32__ */
+ if ((delta = to - _rl_last_v_pos) > 0)
+ {
+ for (i = 0; i < delta; i++)
+ putc ('\n', rl_outstream);
+ tputs (term_cr, 1, _rl_output_character_function);
+ _rl_last_c_pos = 0;
+ }
+ else
+ { /* delta < 0 */
+ if (term_up && *term_up)
+ for (i = 0; i < -delta; i++)
+ tputs (term_up, 1, _rl_output_character_function);
+ }
+#endif /* !__GO32__ */
+ _rl_last_v_pos = to; /* Now TO is here */
+}
+
+/* Physically print C on rl_outstream. This is for functions which know
+ how to optimize the display. */
+rl_show_char (c)
+ int c;
+{
+ if (META_CHAR (c) && _rl_convert_meta_chars_to_ascii)
+ {
+ fprintf (rl_outstream, "M-");
+ c = UNMETA (c);
+ }
+
+#if defined (DISPLAY_TABS)
+ if (c < 32 && c != '\t')
+#else
+ if (c < 32)
+#endif /* !DISPLAY_TABS */
+ {
+
+ c += 64;
+ }
+
+ putc (c, rl_outstream);
+ fflush (rl_outstream);
+}
+
+int
+rl_character_len (c, pos)
+ register int c, pos;
+{
+ if (META_CHAR (c))
+ return (_rl_convert_meta_chars_to_ascii ? 4 : 1);
+
+ if (c == '\t')
+ {
+#if defined (DISPLAY_TABS)
+ return (((pos | (int)7) + 1) - pos);
+#else
+ return (2);
+#endif /* !DISPLAY_TABS */
+ }
+
+ if (isprint (c))
+ return (1);
+ else
+ return (2);
+}
+
+/* How to print things in the "echo-area". The prompt is treated as a
+ mini-modeline. */
+
+#if defined (HAVE_VARARGS_H)
+rl_message (va_alist)
+ va_dcl
+{
+ char *format;
+ va_list args;
+
+ va_start (args);
+ format = va_arg (args, char *);
+ vsprintf (msg_buf, format, args);
+ va_end (args);
+
+ rl_display_prompt = msg_buf;
+ rl_redisplay ();
+}
+#else /* !HAVE_VARARGS_H */
+rl_message (format, arg1, arg2)
+ char *format;
+{
+ sprintf (msg_buf, format, arg1, arg2);
+ rl_display_prompt = msg_buf;
+ rl_redisplay ();
+}
+#endif /* !HAVE_VARARGS_H */
+
+/* How to clear things from the "echo-area". */
+rl_clear_message ()
+{
+ rl_display_prompt = rl_prompt;
+ rl_redisplay ();
+}
+
+rl_reset_line_state ()
+{
+ rl_on_new_line ();
+
+ rl_display_prompt = rl_prompt ? rl_prompt : "";
+ forced_display = 1;
+}
+
+/* Quick redisplay hack when erasing characters at the end of the line. */
+void
+_rl_erase_at_end_of_line (l)
+ int l;
+{
+ register int i;
+
+ backspace (l);
+ for (i = 0; i < l; i++)
+ putc (' ', rl_outstream);
+ backspace (l);
+ for (i = 0; i < l; i++)
+ visible_line[--_rl_last_c_pos] = '\0';
+ rl_display_fixed++;
+}
+
+/* Clear to the end of the line. COUNT is the minimum
+ number of character spaces to clear, */
+static void
+clear_to_eol (count)
+ int count;
+{
+#ifndef __GO32__
+ if (term_clreol)
+ {
+ tputs (term_clreol, 1, _rl_output_character_function);
+ }
+ else
+#endif /* !__GO32__ */
+ {
+ register int i;
+
+ /* Do one more character space. */
+ count++;
+
+ for (i = 0; i < count; i++)
+ putc (' ', rl_outstream);
+
+ backspace (count);
+ }
+}
+/* Insert COUNT characters from STRING to the output stream. */
+static void
+insert_some_chars (string, count)
+ char *string;
+ int count;
+{
+#ifdef __GO32__
+ int row, col, width;
+ char *row_start;
+
+ ScreenGetCursor (&row, &col);
+ width = ScreenCols ();
+ row_start = ScreenPrimary + (row * width);
+ memcpy (row_start + col + count, row_start + col, width - col - count);
+ /* Place the text on the screen. */
+ _rl_output_some_chars (string, count);
+#else /* __GO32__ */
+ /* If IC is defined, then we do not have to "enter" insert mode. */
+ if (term_IC)
+ {
+ char *tgoto (), *buffer;
+ buffer = tgoto (term_IC, 0, count);
+ tputs (buffer, 1, _rl_output_character_function);
+ _rl_output_some_chars (string, count);
+ }
+ else
+ {
+ register int i;
+
+ /* If we have to turn on insert-mode, then do so. */
+ if (term_im && *term_im)
+ tputs (term_im, 1, _rl_output_character_function);
+
+ /* If there is a special command for inserting characters, then
+ use that first to open up the space. */
+ if (term_ic && *term_ic)
+ {
+ for (i = count; i--; )
+ tputs (term_ic, 1, _rl_output_character_function);
+ }
+
+ /* Print the text. */
+ _rl_output_some_chars (string, count);
+
+ /* If there is a string to turn off insert mode, we had best use
+ it now. */
+ if (term_ei && *term_ei)
+ tputs (term_ei, 1, _rl_output_character_function);
+ }
+#endif /* __GO32__ */
+}
+
+/* Delete COUNT characters from the display line. */
+static void
+delete_chars (count)
+ int count;
+{
+#if defined (__GO32__)
+ int row, col, width;
+ char *row_start;
+
+ ScreenGetCursor (&row, &col);
+ width = ScreenCols ();
+ row_start = ScreenPrimary + (row * width);
+ memcpy (row_start + col, row_start + col + count, width - col - count);
+ memset (row_start + width - count, 0, count * 2);
+#else /* !__GO32__ */
+ if (count > screenwidth)
+ return;
+
+ if (term_DC && *term_DC)
+ {
+ char *tgoto (), *buffer;
+ buffer = tgoto (term_DC, 0, count);
+ tputs (buffer, 1, _rl_output_character_function);
+ }
+ else
+ {
+ if (term_dc && *term_dc)
+ while (count--)
+ tputs (term_dc, 1, _rl_output_character_function);
+ }
+#endif /* !__GO32__ */
+}
--- /dev/null
+/* **************************************************************** */
+/* */
+/* I-Search and Searching */
+/* */
+/* **************************************************************** */
+
+/* Copyright (C) 1987,1989 Free Software Foundation, Inc.
+
+ This file contains the Readline Library (the Library), a set of
+ routines for providing Emacs style line input to programs that ask
+ for it.
+
+ The Library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 1, or (at your option)
+ any later version.
+
+ The Library is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+
+#if defined (__GNUC__)
+# define alloca __builtin_alloca
+#else
+# if defined (sparc) || defined (HAVE_ALLOCA_H)
+# include <alloca.h>
+# endif
+#endif
+
+#include "readline.h"
+#include "history.h"
+
+extern Keymap _rl_keymap;
+extern HIST_ENTRY *saved_line_for_history;
+extern int rl_line_buffer_len;
+extern int rl_point, rl_end;
+extern char *rl_prompt, *rl_line_buffer;
+
+/* Remove these declarations when we have a complete libgnu.a. */
+extern char *xmalloc (), *xrealloc ();
+
+static void rl_search_history ();
+
+/* Search backwards through the history looking for a string which is typed
+ interactively. Start with the current line. */
+rl_reverse_search_history (sign, key)
+ int sign;
+ int key;
+{
+ rl_search_history (-sign, key);
+}
+
+/* Search forwards through the history looking for a string which is typed
+ interactively. Start with the current line. */
+rl_forward_search_history (sign, key)
+ int sign;
+ int key;
+{
+ rl_search_history (sign, key);
+}
+
+/* Display the current state of the search in the echo-area.
+ SEARCH_STRING contains the string that is being searched for,
+ DIRECTION is zero for forward, or 1 for reverse,
+ WHERE is the history list number of the current line. If it is
+ -1, then this line is the starting one. */
+static void
+rl_display_search (search_string, reverse_p, where)
+ char *search_string;
+ int reverse_p, where;
+{
+ char *message = (char *)NULL;
+
+ message =
+ (char *)xmalloc (1 + (search_string ? strlen (search_string) : 0) + 30);
+
+ *message = '\0';
+
+#if defined (NOTDEF)
+ if (where != -1)
+ sprintf (message, "[%d]", where + history_base);
+#endif /* NOTDEF */
+
+ strcat (message, "(");
+
+ if (reverse_p)
+ strcat (message, "reverse-");
+
+ strcat (message, "i-search)`");
+
+ if (search_string)
+ strcat (message, search_string);
+
+ strcat (message, "': ");
+ rl_message ("%s", message, 0);
+ free (message);
+ rl_redisplay ();
+}
+
+/* Search through the history looking for an interactively typed string.
+ This is analogous to i-search. We start the search in the current line.
+ DIRECTION is which direction to search; >= 0 means forward, < 0 means
+ backwards. */
+static void
+rl_search_history (direction, invoking_key)
+ int direction;
+ int invoking_key;
+{
+ /* The string that the user types in to search for. */
+ char *search_string;
+
+ /* The current length of SEARCH_STRING. */
+ int search_string_index;
+
+ /* The amount of space that SEARCH_STRING has allocated to it. */
+ int search_string_size;
+
+ /* The list of lines to search through. */
+ char **lines;
+
+ /* The length of LINES. */
+ int hlen;
+
+ /* Where we get LINES from. */
+ HIST_ENTRY **hlist = history_list ();
+
+ register int i = 0;
+ int orig_point = rl_point;
+ int orig_line = where_history ();
+ int last_found_line = orig_line;
+ int c, done = 0;
+
+ /* The line currently being searched. */
+ char *sline;
+
+ /* Offset in that line. */
+ int index;
+
+ /* Non-zero if we are doing a reverse search. */
+ int reverse = (direction < 0);
+
+ /* Create an arrary of pointers to the lines that we want to search. */
+ maybe_replace_line ();
+ if (hlist)
+ for (i = 0; hlist[i]; i++);
+
+ /* Allocate space for this many lines, +1 for the current input line,
+ and remember those lines. */
+ lines = (char **)alloca ((1 + (hlen = i)) * sizeof (char *));
+ for (i = 0; i < hlen; i++)
+ lines[i] = hlist[i]->line;
+
+ if (saved_line_for_history)
+ lines[i] = saved_line_for_history->line;
+ else
+ /* So I have to type it in this way instead. */
+ {
+ char *alloced_line;
+
+ /* Keep that MIPS alloca () happy. */
+ alloced_line = (char *)alloca (1 + strlen (rl_line_buffer));
+ lines[i] = alloced_line;
+ strcpy (lines[i], &rl_line_buffer[0]);
+ }
+
+ hlen++;
+
+ /* The line where we start the search. */
+ i = orig_line;
+
+ /* Initialize search parameters. */
+ search_string = (char *)xmalloc (search_string_size = 128);
+ *search_string = '\0';
+ search_string_index = 0;
+
+ /* Normalize DIRECTION into 1 or -1. */
+ if (direction >= 0)
+ direction = 1;
+ else
+ direction = -1;
+
+ rl_display_search (search_string, reverse, -1);
+
+ sline = rl_line_buffer;
+ index = rl_point;
+
+ while (!done)
+ {
+ c = rl_read_key ();
+
+ /* Hack C to Do What I Mean. */
+ {
+ Function *f = (Function *)NULL;
+
+ if (_rl_keymap[c].type == ISFUNC)
+ {
+ f = _rl_keymap[c].function;
+
+ if (f == rl_reverse_search_history)
+ c = reverse ? -1 : -2;
+ else if (f == rl_forward_search_history)
+ c = !reverse ? -1 : -2;
+ }
+ }
+
+ switch (c)
+ {
+ case ESC:
+ done = 1;
+ continue;
+
+ /* case invoking_key: */
+ case -1:
+ goto search_again;
+
+ /* switch directions */
+ case -2:
+ direction = -direction;
+ reverse = (direction < 0);
+
+ goto do_search;
+
+ case CTRL ('G'):
+ strcpy (rl_line_buffer, lines[orig_line]);
+ rl_point = orig_point;
+ rl_end = strlen (rl_line_buffer);
+ rl_clear_message ();
+ return;
+
+ default:
+ if (c < 32 || c > 126)
+ {
+ rl_execute_next (c);
+ done = 1;
+ continue;
+ }
+ else
+ {
+ if (search_string_index + 2 >= search_string_size)
+ search_string = (char *)xrealloc
+ (search_string, (search_string_size += 128));
+ search_string[search_string_index++] = c;
+ search_string[search_string_index] = '\0';
+ goto do_search;
+
+ search_again:
+
+ if (!search_string_index)
+ continue;
+ else
+ {
+ if (reverse)
+ --index;
+ else
+ if (index != strlen (sline))
+ ++index;
+ else
+ ding ();
+ }
+ do_search:
+
+ while (1)
+ {
+ if (reverse)
+ {
+ while (index >= 0)
+ if (strncmp
+ (search_string, sline + index, search_string_index)
+ == 0)
+ goto string_found;
+ else
+ index--;
+ }
+ else
+ {
+ register int limit =
+ (strlen (sline) - search_string_index) + 1;
+
+ while (index < limit)
+ {
+ if (strncmp (search_string,
+ sline + index,
+ search_string_index) == 0)
+ goto string_found;
+ index++;
+ }
+ }
+
+ next_line:
+ i += direction;
+
+ /* At limit for direction? */
+ if ((reverse && i < 0) ||
+ (!reverse && i == hlen))
+ goto search_failed;
+
+ sline = lines[i];
+ if (reverse)
+ index = strlen (sline);
+ else
+ index = 0;
+
+ /* If the search string is longer than the current
+ line, no match. */
+ if (search_string_index > (int)strlen (sline))
+ goto next_line;
+
+ /* Start actually searching. */
+ if (reverse)
+ index -= search_string_index;
+ }
+
+ search_failed:
+ /* We cannot find the search string. Ding the bell. */
+ ding ();
+ i = last_found_line;
+ break;
+
+ string_found:
+ /* We have found the search string. Just display it. But don't
+ actually move there in the history list until the user accepts
+ the location. */
+ {
+ int line_len;
+
+ line_len = strlen (lines[i]);
+
+ if (line_len >= rl_line_buffer_len)
+ rl_extend_line_buffer (line_len);
+
+ strcpy (rl_line_buffer, lines[i]);
+ rl_point = index;
+ rl_end = line_len;
+ last_found_line = i;
+ rl_display_search
+ (search_string, reverse, (i == orig_line) ? -1 : i);
+ }
+ }
+ }
+ continue;
+ }
+
+ /* The searching is over. The user may have found the string that she
+ was looking for, or else she may have exited a failing search. If
+ INDEX is -1, then that shows that the string searched for was not
+ found. We use this to determine where to place rl_point. */
+ {
+ int now = last_found_line;
+
+ /* First put back the original state. */
+ strcpy (rl_line_buffer, lines[orig_line]);
+
+ /* Free the search string. */
+ free (search_string);
+
+ if (now < orig_line)
+ rl_get_previous_history (orig_line - now);
+ else
+ rl_get_next_history (now - orig_line);
+
+ /* If the index of the "matched" string is less than zero, then the
+ final search string was never matched, so put point somewhere
+ reasonable. */
+ if (index < 0)
+ index = strlen (rl_line_buffer);
+
+ rl_point = index;
+ rl_clear_message ();
+ }
+}
/* keymaps.h -- Manipulation of readline keymaps. */
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
+
+ The GNU Readline Library is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 1, or
+ (at your option) any later version.
+
+ The GNU Readline Library is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 675 Mass Ave, Cambridge, MA 02139, USA. */
+
#ifndef _KEYMAPS_H_
#define _KEYMAPS_H_
Function *function;
} KEYMAP_ENTRY;
+/* This must be large enough to hold bindings for all of the characters
+ in a desired character set (e.g, 128 for ASCII, 256 for ISO Latin-x,
+ and so on). */
+#define KEYMAP_SIZE 256
+
/* I wanted to make the above structure contain a union of:
union { Function *function; struct _keymap_entry *keymap; } value;
but this made it impossible for me to create a static array.
Maybe I need C lessons. */
-typedef KEYMAP_ENTRY KEYMAP_ENTRY_ARRAY[128];
+typedef KEYMAP_ENTRY KEYMAP_ENTRY_ARRAY[KEYMAP_SIZE];
typedef KEYMAP_ENTRY *Keymap;
/* The values that TYPE can have in a keymap entry. */
the Meta digits bound to produce numeric arguments. */
Keymap rl_make_keymap ();
-#endif /* _KEYMAPS_H_ */
+/* Return the keymap corresponding to a given name. Names look like
+ `emacs' or `emacs-meta' or `vi-insert'. */
+Keymap rl_get_keymap_by_name ();
+/* Return the current keymap. */
+Keymap rl_get_keymap ();
+/* Set the current keymap to MAP. */
+void rl_set_keymap ();
+
+#endif /* _KEYMAPS_H_ */
--- /dev/null
+/* parens.c -- Implemenation of matching parenthesis feature. */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
+
+ The GNU Readline Library is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 1, or
+ (at your option) any later version.
+
+ The GNU Readline Library is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include "readline.h"
+
+/* Non-zero means try to blink the matching open parenthesis when the
+ close parenthesis is inserted. */
+#if defined (FD_SET)
+int rl_blink_matching_paren = 1;
+#else /* !FD_SET */
+int rl_blink_matching_paren = 0;
+#endif /* !FD_SET */
+
+static int find_matching_open ();
+
+rl_insert_close (count, invoking_key)
+ int count, invoking_key;
+{
+ extern int rl_explicit_arg;
+
+ if (rl_explicit_arg || !rl_blink_matching_paren)
+ rl_insert (count, invoking_key);
+ else
+ {
+#if defined (FD_SET)
+ int orig_point, match_point, ready;
+ struct timeval timer;
+ fd_set readfds;
+
+ rl_insert (1, invoking_key);
+ rl_redisplay ();
+ match_point =
+ find_matching_open (rl_line_buffer, rl_point - 2, invoking_key);
+
+ /* Emacs might message or ring the bell here, but I don't. */
+ if (match_point < 0)
+ return;
+
+ FD_ZERO (&readfds);
+ FD_SET (fileno (rl_instream), &readfds);
+ timer.tv_sec = 1;
+ timer.tv_usec = 500;
+
+ orig_point = rl_point;
+ rl_point = match_point;
+ rl_redisplay ();
+ ready = select (1, &readfds, (fd_set *)NULL, (fd_set *)NULL, &timer);
+ rl_point = orig_point;
+#else /* !FD_SET */
+ rl_insert (count, invoking_key);
+#endif /* !FD_SET */
+ }
+}
+
+static int
+find_matching_open (string, from, closer)
+ char *string;
+ int from, closer;
+{
+ register int i;
+ int opener, level, delimiter;
+
+ switch (closer)
+ {
+ case ']': opener = '['; break;
+ case '}': opener = '{'; break;
+ case ')': opener = '('; break;
+ default:
+ return (-1);
+ }
+
+ level = 1; /* The closer passed in counts as 1. */
+ delimiter = 0; /* Delimited state unknown. */
+
+ for (i = from; i > -1; i--)
+ {
+ if (delimiter && (string[i] == delimiter))
+ delimiter = 0;
+ else if ((string[i] == '\'') || (string[i] == '"'))
+ delimiter = rl_line_buffer[i];
+ else if (!delimiter && (string[i] == closer))
+ level++;
+ else if (!delimiter && (string[i] == opener))
+ level--;
+
+ if (!level)
+ break;
+ }
+ return (i);
+}
+
+
+
/* readline.c -- a general facility for reading lines of input
- with emacs style editing and completion. */
+ with emacs style editing and completion. */
/* Copyright 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
- This file contains the Readline Library (the Library), a set of
- routines for providing Emacs style line input to programs that ask
- for it.
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
- The Library is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ The GNU Readline Library is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 1, or
(at your option) any later version.
- The Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ The GNU Readline Library is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-/* Remove these declarations when we have a complete libgnu.a. */
-/* #define STATIC_MALLOC */
-#if !defined (STATIC_MALLOC)
-extern char *xmalloc (), *xrealloc ();
-#else
-static char *xmalloc (), *xrealloc ();
-#endif /* STATIC_MALLOC */
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "sysdep.h"
-#include <sys/types.h>
#include <stdio.h>
#include <fcntl.h>
#ifndef NO_SYS_FILE
#endif
#include <signal.h>
+/* This is needed to include support for TIOCGWINSZ and window resizing. */
+#if defined (OSF1) || defined (BSD386) || defined (_386BSD) || defined (AIX)
+# include <sys/ioctl.h>
+#endif /* OSF1 */
+
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
-
-#define NEW_TTY_DRIVER
-#define HAVE_BSD_SIGNALS
-/* #define USE_XON_XOFF */
-
-#ifdef __MSDOS__
-#undef NEW_TTY_DRIVER
-#undef HAVE_BSD_SIGNALS
-#endif
-
-/* Some USG machines have BSD signal handling (sigblock, sigsetmask, etc.) */
-#if defined (USG) && !defined (hpux)
-#undef HAVE_BSD_SIGNALS
-#endif
-
-/* System V machines use termio. */
-#if !defined (_POSIX_VERSION)
-# if defined (USG) || defined (hpux) || defined (Xenix) || defined (sgi) || defined (DGUX)
-# undef NEW_TTY_DRIVER
-# define TERMIO_TTY_DRIVER
-# include <termio.h>
-# if !defined (TCOON)
-# define TCOON 1
-# endif
-# endif /* USG || hpux || Xenix || sgi || DUGX */
-#endif /* !_POSIX_VERSION */
-
-/* Posix systems use termios and the Posix signal functions. */
-#if defined (_POSIX_VERSION)
-# if !defined (TERMIOS_MISSING)
-# undef NEW_TTY_DRIVER
-# define TERMIOS_TTY_DRIVER
-# include <termios.h>
-# endif /* !TERMIOS_MISSING */
-# define HAVE_POSIX_SIGNALS
-# if !defined (O_NDELAY)
-# define O_NDELAY O_NONBLOCK /* Posix-style non-blocking i/o */
-# endif /* O_NDELAY */
-#endif /* _POSIX_VERSION */
-
-/* Other (BSD) machines use sgtty. */
-#if defined (NEW_TTY_DRIVER)
-#include <sgtty.h>
-#endif
-
-/* Define _POSIX_VDISABLE if we are not using the `new' tty driver and
- it is not already defined. It is used both to determine if a
- special character is disabled and to disable certain special
- characters. Posix systems should set to 0, USG systems to -1. */
-#if !defined (NEW_TTY_DRIVER) && !defined (_POSIX_VDISABLE)
-# if defined (_POSIX_VERSION)
-# define _POSIX_VDISABLE 0
-# else /* !_POSIX_VERSION */
-# define _POSIX_VDISABLE -1
-# endif /* !_POSIX_VERSION */
-#endif /* !NEW_TTY_DRIVER && !_POSIX_VDISABLE */
\f
-/* Define some macros for dealing with assorted signalling disciplines.
-
- These macros provide a way to use signal blocking and disabling
- without smothering your code in a pile of #ifdef's.
-
- SIGNALS_UNBLOCK; Stop blocking all signals.
-
- {
- SIGNALS_DECLARE_SAVED (name); Declare a variable to save the
- signal blocking state.
- ...
- SIGNALS_BLOCK (SIGSTOP, name); Block a signal, and save the previous
- state for restoration later.
- ...
- SIGNALS_RESTORE (name); Restore previous signals.
- }
-
-*/
-
-#ifdef HAVE_POSIX_SIGNALS
- /* POSIX signals */
-
-#define SIGNALS_UNBLOCK \
- do { sigset_t set; \
- sigemptyset (&set); \
- sigprocmask (SIG_SETMASK, &set, (sigset_t *)NULL); \
- } while (0)
-
-#define SIGNALS_DECLARE_SAVED(name) sigset_t name
-
-#define SIGNALS_BLOCK(SIG, saved) \
- do { sigset_t set; \
- sigemptyset (&set); \
- sigaddset (&set, SIG); \
- sigprocmask (SIG_BLOCK, &set, &saved); \
- } while (0)
-
-#define SIGNALS_RESTORE(saved) \
- sigprocmask (SIG_SETMASK, &saved, (sigset_t *)NULL)
-
-
-#else /* HAVE_POSIX_SIGNALS */
-#ifdef HAVE_BSD_SIGNALS
- /* BSD signals */
-
-#define SIGNALS_UNBLOCK sigsetmask (0)
-#define SIGNALS_DECLARE_SAVED(name) int name
-#define SIGNALS_BLOCK(SIG, saved) saved = sigblock (sigmask (SIG))
-#define SIGNALS_RESTORE(saved) sigsetmask (saved)
-
-
-#else /* HAVE_BSD_SIGNALS */
- /* None of the Above */
-
-#define SIGNALS_UNBLOCK /* nothing */
-#define SIGNALS_DECLARE_SAVED(name) /* nothing */
-#define SIGNALS_BLOCK(SIG, saved) /* nothing */
-#define SIGNALS_RESTORE(saved) /* nothing */
-
-
-#endif /* HAVE_BSD_SIGNALS */
-#endif /* HAVE_POSIX_SIGNALS */
-
-/* End of signal handling definitions. */
-
-
#include <errno.h>
+/* Not all systems declare ERRNO in errno.h... and some systems #define it! */
+#if !defined (errno)
extern int errno;
+#endif /* !errno */
+
+extern char * getenv ();
#include <setjmp.h>
#include <sys/stat.h>
-/* Posix macro to check file in statbuf for directory-ness. */
-#if defined (S_IFDIR) && !defined (S_ISDIR)
-#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
-#endif
-
-#ifndef __MSDOS__
-/* These next are for filename completion. Perhaps this belongs
- in a different place. */
-#include <pwd.h>
-#endif /* __MSDOS__ */
-
-#if defined (USG) && !defined (isc386) && !defined (sgi)
-struct passwd *getpwuid (), *getpwent ();
-#endif
-
-/* #define HACK_TERMCAP_MOTION */
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
/* Some standard library routines. */
#include "readline.h"
#include "history.h"
-#ifndef digit
-#define digit(c) ((c) >= '0' && (c) <= '9')
-#endif
-
-#ifndef isletter
-#define isletter(c) (((c) >= 'A' && (c) <= 'Z') || ((c) >= 'a' && (c) <= 'z'))
-#endif
-
-#ifndef digit_value
-#define digit_value(c) ((c) - '0')
-#endif
-
-#ifndef member
-#define member(c, s) ((c) ? index ((s), (c)) : 0)
-#endif
-
-#ifndef isident
-#define isident(c) ((isletter(c) || digit(c) || c == '_'))
-#endif
-
-#ifndef exchange
-#define exchange(x, y) {int temp = x; x = y; y = temp;}
-#endif
+/* NOTE: Functions and variables prefixed with `_rl_' are
+ pseudo-global: they are global so they can be shared
+ between files in the readline library, but are not intended
+ to be visible to readline callers. */
-#if !defined (rindex)
-extern char *rindex ();
-#endif /* rindex */
+/* Functions imported from other files in the library. */
+extern char *tgetstr ();
+extern void rl_prep_terminal (), rl_deprep_terminal ();
+extern Function *rl_function_of_keyseq ();
+extern char *tilde_expand ();
-#if !defined (index)
-extern char *index ();
-#endif /* index */
+/* External redisplay functions and variables from display.c */
+extern void rl_redisplay ();
+extern void _rl_move_vert ();
-extern char *getenv ();
-extern char *tilde_expand ();
+extern void _rl_erase_at_end_of_line ();
+extern void _rl_move_cursor_relative ();
-static update_line ();
-static void output_character_function ();
-static delete_chars ();
-static void insert_some_chars ();
+extern int _rl_vis_botlin;
+extern int _rl_last_c_pos;
+extern int rl_display_fixed;
-#if defined (VOID_SIGHANDLER)
-# define sighandler void
-#else
-# define sighandler int
-#endif /* VOID_SIGHANDLER */
+/* Variables imported from complete.c. */
+extern char *rl_completer_word_break_characters;
+extern char *rl_basic_word_break_characters;
+extern Function *rl_symbolic_link_hook;
+extern int rl_completion_query_items;
+extern int rl_complete_with_tilde_expansion;
-/* This typedef is equivalant to the one for Function; it allows us
- to say SigHandler *foo = signal (SIGKILL, SIG_IGN); */
-typedef sighandler SigHandler ();
+/* Forward declarations used in this file. */
+void rl_dispatch ();
+void free_history_entry ();
+void _rl_output_character_function ();
+void _rl_set_screen_size ();
-/* If on, then readline handles signals in a way that doesn't screw. */
-#define HANDLE_SIGNALS
+#if !defined (_GO32_)
+static void readline_default_bindings ();
+#endif /* !_GO32_ */
-#ifdef __GO32__
-#include <sys/pc.h>
-#undef HANDLE_SIGNALS
-#endif
+#if defined (_GO32_)
+# include <sys/pc.h>
+# undef HANDLE_SIGNALS
+#endif /* _GO32_ */
\f
/* **************************************************************** */
/* */
/* **************************************************************** */
+static char *LibraryVersion = "2.0 (Cygnus)";
+
/* A pointer to the keymap that is currently in use.
By default, it is the standard emacs keymap. */
-Keymap keymap = emacs_standard_keymap;
-
-#define no_mode -1
-#define vi_mode 0
-#define emacs_mode 1
+Keymap _rl_keymap = emacs_standard_keymap;
/* The current style of editing. */
int rl_editing_mode = emacs_mode;
static FILE *in_stream, *out_stream;
/* The names of the streams that we do input and output to. */
-FILE *rl_instream, *rl_outstream;
+FILE *rl_instream = (FILE *)NULL;
+FILE *rl_outstream = (FILE *)NULL;
/* Non-zero means echo characters as they are read. */
int readline_echoing_p = 1;
before readline_internal () prints the first prompt. */
Function *rl_startup_hook = (Function *)NULL;
-/* If non-zero, then this is the address of a function to call when
- completing on a directory name. The function is called with
- the address of a string (the current directory name) as an arg. */
-Function *rl_symbolic_link_hook = (Function *)NULL;
-
/* What we use internally. You should always refer to RL_LINE_BUFFER. */
static char *the_line;
/* The character that can generate an EOF. Really read from
the terminal driver... just defaulted here. */
-static int eof_char = CTRL ('D');
+int _rl_eof_char = CTRL ('D');
/* Non-zero makes this the next keystroke to read. */
int rl_pending_input = 0;
/* Pointer to a useful terminal name. */
char *rl_terminal_name = (char *)NULL;
+/* Non-zero means to always use horizontal scrolling in line display. */
+int _rl_horizontal_scroll_mode = 0;
+
+/* Non-zero means to display an asterisk at the starts of history lines
+ which have been modified. */
+int _rl_mark_modified_lines = 0;
+
+/* Non-zero means to use a visible bell if one is available rather than
+ simply ringing the terminal bell. */
+int _rl_prefer_visible_bell = 0;
+
/* Line buffer and maintenence. */
char *rl_line_buffer = (char *)NULL;
int rl_line_buffer_len = 0;
#define DEFAULT_BUFFER_SIZE 256
+#if defined (VISIBLE_STATS)
+int rl_visible_stats = 0;
+#endif /* VISIBLE_STATS */
+
\f
/* **************************************************************** */
/* */
/* Non-zero means do not parse any lines other than comments and
parser directives. */
-static unsigned char parsing_conditionalized_out = 0;
-
-/* Caseless strcmp (). */
-static int stricmp (), strnicmp ();
-static char *strpbrk ();
+unsigned char _rl_parsing_conditionalized_out = 0;
/* Non-zero means to save keys that we dispatch on in a kbd macro. */
static int defining_kbd_macro = 0;
+/* Non-zero means to convert characters with the meta bit set to
+ escape-prefixed characters so we can indirect through
+ emacs_meta_keymap or vi_escape_keymap. */
+int _rl_convert_meta_chars_to_ascii = 1;
+
+static int doing_an_undo;
\f
/* **************************************************************** */
/* */
/* */
/* **************************************************************** */
-static void rl_prep_terminal (), rl_deprep_terminal ();
-static void clear_to_eol (), rl_generic_bind ();
+/* Non-zero means treat 0200 bit in terminal input as Meta bit. */
+int _rl_meta_flag = 0; /* Forward declaration */
/* Read a line of input. Prompt with PROMPT. A NULL PROMPT means
none. A return value of NULL means that EOF was encountered. */
}
rl_initialize ();
- rl_prep_terminal ();
+ rl_prep_terminal (_rl_meta_flag);
#if defined (HANDLE_SIGNALS)
rl_set_signals ();
while (!rl_done)
{
int lk = last_command_was_kill;
- int code = setjmp (readline_top_level);
+ int code;
+
+ code = setjmp (readline_top_level);
if (code)
rl_redisplay ();
if (c == EOF && rl_end)
c = NEWLINE;
- /* The character eof_char typed to blank line, and not as the
+ /* The character _rl_eof_char typed to blank line, and not as the
previous character is interpreted as EOF. */
- if (((c == eof_char && lastc != c) || c == EOF) && !rl_end)
+ if (((c == _rl_eof_char && lastc != c) || c == EOF) && !rl_end)
{
eof_found = 1;
break;
}
lastc = c;
- rl_dispatch (c, keymap);
+ rl_dispatch (c, _rl_keymap);
/* If there was no change in last_command_was_kill, then no kill
has taken place. Note that if input is pending we are reading
#if defined (VI_MODE)
/* In vi mode, when you exit insert mode, the cursor moves back
over the previous character. We explicitly check for that here. */
- if (rl_editing_mode == vi_mode && keymap == vi_movement_keymap)
+ if (rl_editing_mode == vi_mode && _rl_keymap == vi_movement_keymap)
rl_vi_check ();
#endif /* VI_MODE */
return (savestring (the_line));
}
-\f
-/* **************************************************************** */
-/* */
-/* Signal Handling */
-/* */
-/* **************************************************************** */
-
-#if defined (SIGWINCH)
-static SigHandler *old_sigwinch = (SigHandler *)NULL;
-
-static sighandler
-rl_handle_sigwinch (sig)
- int sig;
-{
- char *term;
-
- term = rl_terminal_name;
-
- if (readline_echoing_p)
- {
- if (!term)
- term = getenv ("TERM");
- if (!term)
- term = "dumb";
- rl_reset_terminal (term);
-#if defined (NOTDEF)
- crlf ();
- rl_forced_update_display ();
-#endif /* NOTDEF */
- }
-
- if (old_sigwinch &&
- old_sigwinch != (SigHandler *)SIG_IGN &&
- old_sigwinch != (SigHandler *)SIG_DFL)
- (*old_sigwinch) (sig);
-#if !defined (VOID_SIGHANDLER)
- return (0);
-#endif /* VOID_SIGHANDLER */
-}
-#endif /* SIGWINCH */
-
-#if defined (HANDLE_SIGNALS)
-/* Interrupt handling. */
-static SigHandler
- *old_int = (SigHandler *)NULL,
- *old_tstp = (SigHandler *)NULL,
- *old_ttou = (SigHandler *)NULL,
- *old_ttin = (SigHandler *)NULL,
- *old_cont = (SigHandler *)NULL,
- *old_alrm = (SigHandler *)NULL;
-
-/* Handle an interrupt character. */
-static sighandler
-rl_signal_handler (sig)
- int sig;
-{
-#if !defined (HAVE_BSD_SIGNALS)
- /* Since the signal will not be blocked while we are in the signal
- handler, ignore it until rl_clear_signals resets the catcher. */
- if (sig == SIGINT)
- signal (sig, SIG_IGN);
-#endif /* !HAVE_BSD_SIGNALS */
-
- switch (sig)
- {
- case SIGINT:
- free_undo_list ();
- rl_clear_message ();
- rl_init_argument ();
-
-#if defined (SIGTSTP)
- case SIGTSTP:
- case SIGTTOU:
- case SIGTTIN:
-#endif /* SIGTSTP */
- case SIGALRM:
- rl_clean_up_for_exit ();
- rl_deprep_terminal ();
- rl_clear_signals ();
- rl_pending_input = 0;
-
- kill (getpid (), sig);
-
- SIGNALS_UNBLOCK;
-
- rl_prep_terminal ();
- rl_set_signals ();
- }
-
-#if !defined (VOID_SIGHANDLER)
- return (0);
-#endif /* !VOID_SIGHANDLER */
-}
-
-rl_set_signals ()
-{
- old_int = (SigHandler *)signal (SIGINT, rl_signal_handler);
- if (old_int == (SigHandler *)SIG_IGN)
- signal (SIGINT, SIG_IGN);
-
- old_alrm = (SigHandler *)signal (SIGALRM, rl_signal_handler);
- if (old_alrm == (SigHandler *)SIG_IGN)
- signal (SIGALRM, SIG_IGN);
-
-#if defined (SIGTSTP)
- old_tstp = (SigHandler *)signal (SIGTSTP, rl_signal_handler);
- if (old_tstp == (SigHandler *)SIG_IGN)
- signal (SIGTSTP, SIG_IGN);
-#endif
-#if defined (SIGTTOU)
- old_ttou = (SigHandler *)signal (SIGTTOU, rl_signal_handler);
- old_ttin = (SigHandler *)signal (SIGTTIN, rl_signal_handler);
-
- if (old_tstp == (SigHandler *)SIG_IGN)
- {
- signal (SIGTTOU, SIG_IGN);
- signal (SIGTTIN, SIG_IGN);
- }
-#endif
-
-#if defined (SIGWINCH)
- old_sigwinch = (SigHandler *)signal (SIGWINCH, rl_handle_sigwinch);
-#endif
-}
-
-rl_clear_signals ()
-{
- signal (SIGINT, old_int);
- signal (SIGALRM, old_alrm);
-
-#if defined (SIGTSTP)
- signal (SIGTSTP, old_tstp);
-#endif
-
-#if defined (SIGTTOU)
- signal (SIGTTOU, old_ttou);
- signal (SIGTTIN, old_ttin);
-#endif
-
-#if defined (SIGWINCH)
- signal (SIGWINCH, old_sigwinch);
-#endif
-}
-#endif /* HANDLE_SIGNALS */
-
\f
/* **************************************************************** */
/* */
/* */
/* **************************************************************** */
-#if defined (USE_XON_XOFF)
-/* If the terminal was in xoff state when we got to it, then xon_char
- contains the character that is supposed to start it again. */
-static int xon_char, xoff_state;
-#endif /* USE_XON_XOFF */
-
static int pop_index = 0, push_index = 0, ibuffer_len = 511;
static unsigned char ibuffer[512];
/* If a character is available to be read, then read it
and stuff it into IBUFFER. Otherwise, just return. */
+void
rl_gather_tyi ()
{
#ifdef __GO32__
char input;
- if (isatty(0))
- {
- int i = rl_getc();
- if (i != EOF)
- rl_stuff_char(i);
- }
- else
- if (kbhit() && ibuffer_space())
- rl_stuff_char(getkey());
+ if (isatty (0))
+ {
+ int i = rl_getc ();
+ if (i != EOF)
+ rl_stuff_char (i);
+ }
+ else if (kbhit () && ibuffer_space ())
+ rl_stuff_char (getkey ());
#else
+
int tty = fileno (in_stream);
register int tem, result = -1;
- long chars_avail;
+ int chars_avail;
char input;
#if defined (FIONREAD)
result = ioctl (tty, FIONREAD, &chars_avail);
#endif
+#if defined (O_NDELAY)
if (result == -1)
{
int flags;
if (chars_avail == -1 && errno == EAGAIN)
return;
}
+#endif /* O_NDELAY */
/* If there's nothing available, don't waste time trying to read
something. */
return (c);
}
-/* I'm beginning to hate the declaration rules for various compilers. */
+/* Found later in this file. */
static void add_macro_char (), with_macro_input ();
/* Do the command associated with KEY in MAP.
If the associated command is really a keymap, then read
another key, and dispatch into that map. */
+void
rl_dispatch (key, map)
register int key;
Keymap map;
{
+#if defined (VI_MODE)
+ extern int _rl_vi_last_command, _rl_vi_last_repeat, _rl_vi_last_arg_sign;
+#endif
if (defining_kbd_macro)
add_macro_char (key);
- if (key > 127 && key < 256)
+ if (META_CHAR (key) && _rl_convert_meta_chars_to_ascii)
{
if (map[ESC].type == ISKMAP)
{
map = (Keymap)map[ESC].function;
- key -= 128;
+ key = UNMETA (key);
+ rl_key_sequence_length += 2;
rl_dispatch (key, map);
}
else
}
break;
}
+#if defined (VI_MODE)
+ if (rl_editing_mode == vi_mode && _rl_keymap == vi_movement_keymap &&
+ rl_vi_textmod_command (key))
+ {
+ _rl_vi_last_command = key;
+ _rl_vi_last_repeat = rl_numeric_arg;
+ _rl_vi_last_arg_sign = rl_arg_sign;
+ }
+#endif
}
\f
/* Initliaze readline (and terminal if not already). */
rl_initialize ()
{
- extern char *rl_display_prompt;
-
/* If we have never been called before, initialize the
terminal and data structures. */
if (!rl_initialized)
start_using_history ();
/* Make the display buffer match the state of the line. */
- {
- extern char *rl_display_prompt;
- extern int forced_display;
-
- rl_on_new_line ();
-
- rl_display_prompt = rl_prompt ? rl_prompt : "";
- forced_display = 1;
- }
+ rl_reset_line_state ();
/* No such function typed yet. */
rl_last_func = (Function *)NULL;
/* Parsing of key-bindings begins in an enabled state. */
- parsing_conditionalized_out = 0;
+ _rl_parsing_conditionalized_out = 0;
}
/* Initialize the entire state of the world. */
/* Find out if we are running in Emacs. */
running_in_emacs = getenv ("EMACS");
- /* Set up input and output if they aren't already. */
+ /* Set up input and output if they are not already set up. */
if (!rl_instream)
rl_instream = stdin;
+
if (!rl_outstream)
rl_outstream = stdout;
+ /* Bind in_stream and out_stream immediately. These values may change,
+ but they may also be used before readline_internal () is called. */
+ in_stream = rl_instream;
+ out_stream = rl_outstream;
+
/* Allocate data structures. */
if (!rl_line_buffer)
rl_line_buffer =
/* If the completion parser's default word break characters haven't
been set yet, then do so now. */
{
- extern char *rl_completer_word_break_characters;
- extern char *rl_basic_word_break_characters;
-
if (rl_completer_word_break_characters == (char *)NULL)
rl_completer_word_break_characters = rl_basic_word_break_characters;
}
/* If this system allows us to look at the values of the regular
input editing characters, then bind them to their readline
equivalents, iff the characters are not bound to keymaps. */
+static void
readline_default_bindings ()
{
-#ifndef __GO32__
-
-#if defined (NEW_TTY_DRIVER)
- struct sgttyb ttybuff;
- int tty = fileno (rl_instream);
-
- if (ioctl (tty, TIOCGETP, &ttybuff) != -1)
- {
- int erase, kill;
-
- erase = ttybuff.sg_erase;
- kill = ttybuff.sg_kill;
-
- if (erase != -1 && keymap[erase].type == ISFUNC)
- keymap[erase].function = rl_rubout;
-
- if (kill != -1 && keymap[kill].type == ISFUNC)
- keymap[kill].function = rl_unix_line_discard;
- }
-
-#if defined (TIOCGLTC)
- {
- struct ltchars lt;
-
- if (ioctl (tty, TIOCGLTC, <) != -1)
- {
- int erase, nextc;
-
- erase = lt.t_werasc;
- nextc = lt.t_lnextc;
-
- if (erase != -1 && keymap[erase].type == ISFUNC)
- keymap[erase].function = rl_unix_word_rubout;
-
- if (nextc != -1 && keymap[nextc].type == ISFUNC)
- keymap[nextc].function = rl_quoted_insert;
- }
- }
-#endif /* TIOCGLTC */
-#else /* not NEW_TTY_DRIVER */
-
-#if defined (TERMIOS_TTY_DRIVER)
- struct termios ttybuff;
-#else
- struct termio ttybuff;
-#endif /* TERMIOS_TTY_DRIVER */
- int tty = fileno (rl_instream);
-
-#if defined (TERMIOS_TTY_DRIVER)
- if (tcgetattr (tty, &ttybuff) != -1)
-#else
- if (ioctl (tty, TCGETA, &ttybuff) != -1)
-#endif /* !TERMIOS_TTY_DRIVER */
- {
- int erase, kill;
-
- erase = ttybuff.c_cc[VERASE];
- kill = ttybuff.c_cc[VKILL];
-
- if (erase != _POSIX_VDISABLE &&
- keymap[(unsigned char)erase].type == ISFUNC)
- keymap[(unsigned char)erase].function = rl_rubout;
-
- if (kill != _POSIX_VDISABLE &&
- keymap[(unsigned char)kill].type == ISFUNC)
- keymap[(unsigned char)kill].function = rl_unix_line_discard;
-
-#if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER)
- {
- int nextc;
-
- nextc = ttybuff.c_cc[VLNEXT];
-
- if (nextc != _POSIX_VDISABLE &&
- keymap[(unsigned char)nextc].type == ISFUNC)
- keymap[(unsigned char)nextc].function = rl_quoted_insert;
- }
-#endif /* VLNEXT && TERMIOS_TTY_DRIVER */
-
-#if defined (VWERASE)
- {
- int werase;
-
- werase = ttybuff.c_cc[VWERASE];
-
- if (werase != _POSIX_VDISABLE &&
- keymap[(unsigned char)werase].type == ISFUNC)
- keymap[(unsigned char)werase].function = rl_unix_word_rubout;
- }
-#endif /* VWERASE */
- }
-#endif /* !NEW_TTY_DRIVER */
-#endif /* def __GO32__ */
+ rltty_set_default_bindings (_rl_keymap);
}
\f
int key, c;
while (1)
{
- rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg, 0);
+ rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg);
key = c = rl_read_key ();
- if (keymap[c].type == ISFUNC &&
- keymap[c].function == rl_universal_argument)
+ if (_rl_keymap[c].type == ISFUNC &&
+ _rl_keymap[c].function == rl_universal_argument)
{
rl_numeric_arg *= 4;
continue;
else
{
rl_clear_message ();
- rl_dispatch (key, keymap);
+ rl_dispatch (key, _rl_keymap);
return;
}
}
}
}
-
\f
/* **************************************************************** */
/* */
-/* Display stuff */
+/* Terminal and Termcap */
/* */
/* **************************************************************** */
-/* This is the stuff that is hard for me. I never seem to write good
- display routines in C. Let's see how I do this time. */
-
-/* (PWP) Well... Good for a simple line updater, but totally ignores
- the problems of input lines longer than the screen width.
-
- update_line and the code that calls it makes a multiple line,
- automatically wrapping line update. Carefull attention needs
- to be paid to the vertical position variables.
-
- handling of terminals with autowrap on (incl. DEC braindamage)
- could be improved a bit. Right now I just cheat and decrement
- screenwidth by one. */
+static char *term_buffer = (char *)NULL;
+static char *term_string_buffer = (char *)NULL;
-/* Keep two buffers; one which reflects the current contents of the
- screen, and the other to draw what we think the new contents should
- be. Then compare the buffers, and make whatever changes to the
- screen itself that we should. Finally, make the buffer that we
- just drew into be the one which reflects the current contents of the
- screen, and place the cursor where it belongs.
+/* Non-zero means this terminal can't really do anything. */
+int dumb_term = 0;
+/* On Solaris2, sys/types.h #includes sys/reg.h, which #defines PC.
+ Unfortunately, PC is a global variable used by the termcap library. */
+#undef PC
- Commands that want to can fix the display themselves, and then let
- this function know that the display has been fixed by setting the
- RL_DISPLAY_FIXED variable. This is good for efficiency. */
+#if !defined (__linux__)
+char PC;
+char *BC, *UP;
+#endif /* __linux__ */
-/* Termcap variables: */
-extern char *term_up, *term_dc, *term_cr;
-extern int screenheight, screenwidth, terminal_can_insert;
+/* Some strings to control terminal actions. These are output by tputs (). */
+char *term_goto, *term_clreol, *term_cr, *term_clrpag, *term_backspace;
-/* What YOU turn on when you have handled all redisplay yourself. */
-int rl_display_fixed = 0;
+int screenwidth, screenheight;
-/* The visible cursor position. If you print some text, adjust this. */
-int last_c_pos = 0;
-int last_v_pos = 0;
+/* Non-zero if we determine that the terminal can do character insertion. */
+int terminal_can_insert = 0;
-/* The last left edge of text that was displayed. This is used when
- doing horizontal scrolling. It shifts in thirds of a screenwidth. */
-static int last_lmargin = 0;
+/* How to insert characters. */
+char *term_im, *term_ei, *term_ic, *term_ip, *term_IC;
-/* The line display buffers. One is the line currently displayed on
- the screen. The other is the line about to be displayed. */
-static char *visible_line = (char *)NULL;
-static char *invisible_line = (char *)NULL;
+/* How to delete characters. */
+char *term_dc, *term_DC;
-/* Number of lines currently on screen minus 1. */
-int vis_botlin = 0;
+#if defined (HACK_TERMCAP_MOTION)
+char *term_forward_char;
+#endif /* HACK_TERMCAP_MOTION */
-/* A buffer for `modeline' messages. */
-char msg_buf[128];
+/* How to go up a line. */
+char *term_up;
-/* Non-zero forces the redisplay even if we thought it was unnecessary. */
-int forced_display = 0;
+/* A visible bell, if the terminal can be made to flash the screen. */
+char *visible_bell;
-/* The stuff that gets printed out before the actual text of the line.
- This is usually pointing to rl_prompt. */
-char *rl_display_prompt = (char *)NULL;
+/* Non-zero means that this terminal has a meta key. */
+int term_has_meta;
-/* Default and initial buffer size. Can grow. */
-static int line_size = 1024;
+/* The string to write to turn on the meta key, if this term has one. */
+char *term_mm;
-/* Non-zero means to always use horizontal scrolling in line display. */
-static int horizontal_scroll_mode = 0;
+/* The string to write to turn off the meta key, if this term has one. */
+char *term_mo;
-/* Non-zero means to display an asterisk at the starts of history lines
- which have been modified. */
-static int mark_modified_lines = 0;
+/* The key sequences output by the arrow keys, if this terminal has any. */
+char *term_ku, *term_kd, *term_kr, *term_kl;
-/* Non-zero means to use a visible bell if one is available rather than
- simply ringing the terminal bell. */
-static int prefer_visible_bell = 0;
-
-/* I really disagree with this, but my boss (among others) insists that we
- support compilers that don't work. I don't think we are gaining by doing
- so; what is the advantage in producing better code if we can't use it? */
-/* The following two declarations belong inside the
- function block, not here. */
-static void move_cursor_relative ();
-static void output_some_chars ();
-static void output_character_function ();
-static int compare_strings ();
-
-/* Basic redisplay algorithm. */
-rl_redisplay ()
+/* Re-initialize the terminal considering that the TERM/TERMCAP variable
+ has changed. */
+rl_reset_terminal (terminal_name)
+ char *terminal_name;
{
- register int in, out, c, linenum;
- register char *line = invisible_line;
- char *prompt_this_line;
- int c_pos = 0;
- int inv_botlin = 0; /* Number of lines in newly drawn buffer. */
-
- extern int readline_echoing_p;
-
- if (!readline_echoing_p)
- return;
+ init_terminal_io (terminal_name);
+}
- if (!rl_display_prompt)
- rl_display_prompt = "";
+/* Set readline's idea of the screen size. TTY is a file descriptor open
+ to the terminal. If IGNORE_ENV is true, we do not pay attention to the
+ values of $LINES and $COLUMNS. The tests for TERM_STRING_BUFFER being
+ non-null serve to check whether or not we have initialized termcap. */
+void
+_rl_set_screen_size (tty, ignore_env)
+ int tty, ignore_env;
+{
+#if defined (TIOCGWINSZ)
+ struct winsize window_size;
+#endif /* TIOCGWINSZ */
- if (!invisible_line)
+#if defined (TIOCGWINSZ)
+ if (ioctl (tty, TIOCGWINSZ, &window_size) == 0)
{
- visible_line = (char *)xmalloc (line_size);
- invisible_line = (char *)xmalloc (line_size);
- line = invisible_line;
- for (in = 0; in < line_size; in++)
- {
- visible_line[in] = 0;
- invisible_line[in] = 1;
- }
- rl_on_new_line ();
+ screenwidth = (int) window_size.ws_col;
+ screenheight = (int) window_size.ws_row;
}
+#endif /* TIOCGWINSZ */
- /* Draw the line into the buffer. */
- c_pos = -1;
-
- /* Mark the line as modified or not. We only do this for history
- lines. */
- out = 0;
- if (mark_modified_lines && current_history () && rl_undo_list)
+ /* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV
+ is unset. */
+ if (screenwidth <= 0)
{
- line[out++] = '*';
- line[out] = '\0';
- }
+ char *sw;
- /* If someone thought that the redisplay was handled, but the currently
- visible line has a different modification state than the one about
- to become visible, then correct the callers misconception. */
- if (visible_line[0] != invisible_line[0])
- rl_display_fixed = 0;
+ if (!ignore_env && (sw = getenv ("COLUMNS")))
+ screenwidth = atoi (sw);
- prompt_this_line = rindex (rl_display_prompt, '\n');
- if (!prompt_this_line)
- prompt_this_line = rl_display_prompt;
- else
- {
- prompt_this_line++;
- if (forced_display)
- output_some_chars (rl_display_prompt,
- prompt_this_line - rl_display_prompt);
+ if (screenwidth <= 0 && term_string_buffer)
+ screenwidth = tgetnum ("co");
}
- strncpy (line + out, prompt_this_line, strlen (prompt_this_line));
- out += strlen (prompt_this_line);
- line[out] = '\0';
-
- for (in = 0; in < rl_end; in++)
+ /* Environment variable LINES overrides setting of "li" if IGNORE_ENV
+ is unset. */
+ if (screenheight <= 0)
{
- c = (unsigned char)the_line[in];
+ char *sh;
- if (out + 1 >= line_size)
- {
- line_size *= 2;
- visible_line = (char *)xrealloc (visible_line, line_size);
- invisible_line = (char *)xrealloc (invisible_line, line_size);
- line = invisible_line;
- }
+ if (!ignore_env && (sh = getenv ("LINES")))
+ screenheight = atoi (sh);
- if (in == rl_point)
- c_pos = out;
-
- if (c > 127)
- {
- line[out++] = 'M';
- line[out++] = '-';
- line[out++] = c - 128;
- }
-#define DISPLAY_TABS
-#if defined (DISPLAY_TABS)
- else if (c == '\t')
- {
- register int newout = (out | (int)7) + 1;
- while (out < newout)
- line[out++] = ' ';
- }
-#endif
- else if (c < 32)
- {
- line[out++] = 'C';
- line[out++] = '-';
- line[out++] = c + 64;
- }
- else if (c == 127)
- {
- line[out++] = 'C';
- line[out++] = '-';
- line[out++] = '?';
- }
- else
- line[out++] = c;
+ if (screenheight <= 0 && term_string_buffer)
+ screenheight = tgetnum ("li");
}
- line[out] = '\0';
- if (c_pos < 0)
- c_pos = out;
- /* PWP: now is when things get a bit hairy. The visible and invisible
- line buffers are really multiple lines, which would wrap every
- (screenwidth - 1) characters. Go through each in turn, finding
- the changed region and updating it. The line order is top to bottom. */
+ /* If all else fails, default to 80x24 terminal. */
+ if (screenwidth <= 0)
+ screenwidth = 80;
- /* If we can move the cursor up and down, then use multiple lines,
- otherwise, let long lines display in a single terminal line, and
- horizontally scroll it. */
+ if (screenheight <= 0)
+ screenheight = 24;
- if (!horizontal_scroll_mode && term_up && *term_up)
- {
- int total_screen_chars = (screenwidth * screenheight);
-
- if (!rl_display_fixed || forced_display)
- {
- forced_display = 0;
-
- /* If we have more than a screenful of material to display, then
- only display a screenful. We should display the last screen,
- not the first. I'll fix this in a minute. */
- if (out >= total_screen_chars)
- out = total_screen_chars - 1;
-
- /* Number of screen lines to display. */
- inv_botlin = out / screenwidth;
-
- /* For each line in the buffer, do the updating display. */
- for (linenum = 0; linenum <= inv_botlin; linenum++)
- update_line (linenum > vis_botlin ? ""
- : &visible_line[linenum * screenwidth],
- &invisible_line[linenum * screenwidth],
- linenum);
-
- /* We may have deleted some lines. If so, clear the left over
- blank ones at the bottom out. */
- if (vis_botlin > inv_botlin)
- {
- char *tt;
- for (; linenum <= vis_botlin; linenum++)
- {
- tt = &visible_line[linenum * screenwidth];
- move_vert (linenum);
- move_cursor_relative (0, tt);
- clear_to_eol ((linenum == vis_botlin)?
- strlen (tt) : screenwidth);
- }
- }
- vis_botlin = inv_botlin;
-
- /* Move the cursor where it should be. */
- move_vert (c_pos / screenwidth);
- move_cursor_relative (c_pos % screenwidth,
- &invisible_line[(c_pos / screenwidth) * screenwidth]);
- }
- }
- else /* Do horizontal scrolling. */
- {
- int lmargin;
-
- /* Always at top line. */
- last_v_pos = 0;
-
- /* If the display position of the cursor would be off the edge
- of the screen, start the display of this line at an offset that
- leaves the cursor on the screen. */
- if (c_pos - last_lmargin > screenwidth - 2)
- lmargin = (c_pos / (screenwidth / 3) - 2) * (screenwidth / 3);
- else if (c_pos - last_lmargin < 1)
- lmargin = ((c_pos - 1) / (screenwidth / 3)) * (screenwidth / 3);
- else
- lmargin = last_lmargin;
-
- /* If the first character on the screen isn't the first character
- in the display line, indicate this with a special character. */
- if (lmargin > 0)
- line[lmargin] = '<';
-
- if (lmargin + screenwidth < out)
- line[lmargin + screenwidth - 1] = '>';
-
- if (!rl_display_fixed || forced_display || lmargin != last_lmargin)
- {
- forced_display = 0;
- update_line (&visible_line[last_lmargin],
- &invisible_line[lmargin], 0);
-
- move_cursor_relative (c_pos - lmargin, &invisible_line[lmargin]);
- last_lmargin = lmargin;
- }
- }
- fflush (out_stream);
-
- /* Swap visible and non-visible lines. */
- {
- char *temp = visible_line;
- visible_line = invisible_line;
- invisible_line = temp;
- rl_display_fixed = 0;
- }
-}
-
-/* PWP: update_line() is based on finding the middle difference of each
- line on the screen; vis:
-
- /old first difference
- /beginning of line | /old last same /old EOL
- v v v v
-old: eddie> Oh, my little gruntle-buggy is to me, as lurgid as
-new: eddie> Oh, my little buggy says to me, as lurgid as
- ^ ^ ^ ^
- \beginning of line | \new last same \new end of line
- \new first difference
-
- All are character pointers for the sake of speed. Special cases for
- no differences, as well as for end of line additions must be handeled.
-
- Could be made even smarter, but this works well enough */
-static
-update_line (old, new, current_line)
- register char *old, *new;
- int current_line;
-{
- register char *ofd, *ols, *oe, *nfd, *nls, *ne;
- int lendiff, wsatend;
-
- /* Find first difference. */
- for (ofd = old, nfd = new;
- (ofd - old < screenwidth) && *ofd && (*ofd == *nfd);
- ofd++, nfd++)
- ;
-
- /* Move to the end of the screen line. */
- for (oe = ofd; ((oe - old) < screenwidth) && *oe; oe++);
- for (ne = nfd; ((ne - new) < screenwidth) && *ne; ne++);
-
- /* If no difference, continue to next line. */
- if (ofd == oe && nfd == ne)
- return;
-
- wsatend = 1; /* flag for trailing whitespace */
- ols = oe - 1; /* find last same */
- nls = ne - 1;
- while ((*ols == *nls) && (ols > ofd) && (nls > nfd))
- {
- if (*ols != ' ')
- wsatend = 0;
- ols--;
- nls--;
- }
-
- if (wsatend)
- {
- ols = oe;
- nls = ne;
- }
- else if (*ols != *nls)
- {
- if (*ols) /* don't step past the NUL */
- ols++;
- if (*nls)
- nls++;
- }
-
- move_vert (current_line);
- move_cursor_relative (ofd - old, old);
-
- /* if (len (new) > len (old)) */
- lendiff = (nls - nfd) - (ols - ofd);
-
- /* Insert (diff(len(old),len(new)) ch */
- if (lendiff > 0)
- {
- if (terminal_can_insert)
- {
- extern char *term_IC;
-
- /* Sometimes it is cheaper to print the characters rather than
- use the terminal's capabilities. */
- if ((2 * (ne - nfd)) < lendiff && !term_IC)
- {
- output_some_chars (nfd, (ne - nfd));
- last_c_pos += (ne - nfd);
- }
- else
- {
- if (*ols)
- {
- insert_some_chars (nfd, lendiff);
- last_c_pos += lendiff;
- }
- else
- {
- /* At the end of a line the characters do not have to
- be "inserted". They can just be placed on the screen. */
- output_some_chars (nfd, lendiff);
- last_c_pos += lendiff;
- }
- /* Copy (new) chars to screen from first diff to last match. */
- if (((nls - nfd) - lendiff) > 0)
- {
- output_some_chars (&nfd[lendiff], ((nls - nfd) - lendiff));
- last_c_pos += ((nls - nfd) - lendiff);
- }
- }
- }
- else
- { /* cannot insert chars, write to EOL */
- output_some_chars (nfd, (ne - nfd));
- last_c_pos += (ne - nfd);
- }
- }
- else /* Delete characters from line. */
- {
- /* If possible and inexpensive to use terminal deletion, then do so. */
- if (term_dc && (2 * (ne - nfd)) >= (-lendiff))
- {
- if (lendiff)
- delete_chars (-lendiff); /* delete (diff) characters */
-
- /* Copy (new) chars to screen from first diff to last match */
- if ((nls - nfd) > 0)
- {
- output_some_chars (nfd, (nls - nfd));
- last_c_pos += (nls - nfd);
- }
- }
- /* Otherwise, print over the existing material. */
- else
- {
- output_some_chars (nfd, (ne - nfd));
- last_c_pos += (ne - nfd);
- clear_to_eol ((oe - old) - (ne - new));
- }
- }
-}
-
-/* (PWP) tell the update routines that we have moved onto a
- new (empty) line. */
-rl_on_new_line ()
-{
- if (visible_line)
- visible_line[0] = '\0';
-
- last_c_pos = last_v_pos = 0;
- vis_botlin = last_lmargin = 0;
-}
-
-/* Actually update the display, period. */
-rl_forced_update_display ()
-{
- if (visible_line)
- {
- register char *temp = visible_line;
-
- while (*temp) *temp++ = '\0';
- }
- rl_on_new_line ();
- forced_display++;
- rl_redisplay ();
-}
-
-/* Move the cursor from last_c_pos to NEW, which are buffer indices.
- DATA is the contents of the screen line of interest; i.e., where
- the movement is being done. */
-static void
-move_cursor_relative (new, data)
- int new;
- char *data;
-{
- register int i;
-
- /* It may be faster to output a CR, and then move forwards instead
- of moving backwards. */
- if (new + 1 < last_c_pos - new)
- {
-#ifdef __MSDOS__
- putc('\r', out_stream);
-#else
- tputs (term_cr, 1, output_character_function);
-#endif
- last_c_pos = 0;
- }
-
- if (last_c_pos == new) return;
-
- if (last_c_pos < new)
- {
- /* Move the cursor forward. We do it by printing the command
- to move the cursor forward if there is one, else print that
- portion of the output buffer again. Which is cheaper? */
-
- /* The above comment is left here for posterity. It is faster
- to print one character (non-control) than to print a control
- sequence telling the terminal to move forward one character.
- That kind of control is for people who don't know what the
- data is underneath the cursor. */
-#if defined (HACK_TERMCAP_MOTION)
- extern char *term_forward_char;
-
- if (term_forward_char)
- for (i = last_c_pos; i < new; i++)
- tputs (term_forward_char, 1, output_character_function);
- else
- for (i = last_c_pos; i < new; i++)
- putc (data[i], out_stream);
-#else
- for (i = last_c_pos; i < new; i++)
- putc (data[i], out_stream);
-#endif /* HACK_TERMCAP_MOTION */
- }
- else
- backspace (last_c_pos - new);
- last_c_pos = new;
-}
-
-/* PWP: move the cursor up or down. */
-move_vert (to)
- int to;
-{
- void output_character_function ();
- register int delta, i;
-
- if (last_v_pos == to) return;
-
- if (to > screenheight)
- return;
-
-#ifdef __GO32__
- {
- int cur_r, cur_c;
- ScreenGetCursor(&cur_r, &cur_c);
- ScreenSetCursor(cur_r+to-last_v_pos, cur_c);
- }
-#else /* __GO32__ */
- if ((delta = to - last_v_pos) > 0)
- {
- for (i = 0; i < delta; i++)
- putc ('\n', out_stream);
- tputs (term_cr, 1, output_character_function);
- last_c_pos = 0;
- }
- else
- { /* delta < 0 */
- if (term_up && *term_up)
- for (i = 0; i < -delta; i++)
- tputs (term_up, 1, output_character_function);
- }
-#endif /* __GO32__ */
- last_v_pos = to; /* now to is here */
-}
-
-/* Physically print C on out_stream. This is for functions which know
- how to optimize the display. */
-rl_show_char (c)
- int c;
-{
- if (c > 127)
- {
- fprintf (out_stream, "M-");
- c -= 128;
- }
-
-#if defined (DISPLAY_TABS)
- if (c < 32 && c != '\t')
-#else
- if (c < 32)
+#if defined (SHELL)
+ /* If we're being compiled as part of bash, set the environment
+ variables $LINES and $COLUMNS to new values. */
+ set_lines_and_columns (screenheight, screenwidth);
#endif
- {
-
- c += 64;
- }
-
- putc (c, out_stream);
- fflush (out_stream);
-}
-
-#if defined (DISPLAY_TABS)
-int
-rl_character_len (c, pos)
- register int c, pos;
-{
- if (c < ' ' || c > 126)
- {
- if (c == '\t')
- return (((pos | (int)7) + 1) - pos);
- else
- return (3);
- }
- else
- return (1);
-}
-#else
-int
-rl_character_len (c)
- int c;
-{
- if (c < ' ' || c > 126)
- return (3);
- else
- return (1);
-}
-#endif /* DISPLAY_TAB */
-
-/* How to print things in the "echo-area". The prompt is treated as a
- mini-modeline. */
-rl_message (string, arg1, arg2)
- char *string;
-{
- sprintf (msg_buf, string, arg1, arg2);
- rl_display_prompt = msg_buf;
- rl_redisplay ();
-}
-
-/* How to clear things from the "echo-area". */
-rl_clear_message ()
-{
- rl_display_prompt = rl_prompt;
- rl_redisplay ();
-}
-\f
-/* **************************************************************** */
-/* */
-/* Terminal and Termcap */
-/* */
-/* **************************************************************** */
-
-static char *term_buffer = (char *)NULL;
-static char *term_string_buffer = (char *)NULL;
-
-/* Non-zero means this terminal can't really do anything. */
-int dumb_term = 0;
-
-/* On Solaris2, sys/types.h brings in sys/reg.h,
- which screws up the Termcap variable PC, used below. */
-
-#undef PC
-
-char PC;
-char *BC, *UP;
-
-/* Some strings to control terminal actions. These are output by tputs (). */
-char *term_goto, *term_clreol, *term_cr, *term_clrpag, *term_backspace;
-
-int screenwidth, screenheight;
-
-/* Non-zero if we determine that the terminal can do character insertion. */
-int terminal_can_insert = 0;
-
-/* How to insert characters. */
-char *term_im, *term_ei, *term_ic, *term_ip, *term_IC;
-
-/* How to delete characters. */
-char *term_dc, *term_DC;
-
-#if defined (HACK_TERMCAP_MOTION)
-char *term_forward_char;
-#endif /* HACK_TERMCAP_MOTION */
-
-/* How to go up a line. */
-char *term_up;
-
-/* A visible bell, if the terminal can be made to flash the screen. */
-char *visible_bell;
-/* Re-initialize the terminal considering that the TERM/TERMCAP variable
- has changed. */
-rl_reset_terminal (terminal_name)
- char *terminal_name;
-{
- init_terminal_io (terminal_name);
+ screenwidth--;
}
init_terminal_io (terminal_name)
char *terminal_name;
{
#ifdef __GO32__
- screenwidth = ScreenCols();
- screenheight = ScreenRows();
+ screenwidth = ScreenCols ();
+ screenheight = ScreenRows ();
term_cr = "\r";
term_im = term_ei = term_ic = term_IC = (char *)NULL;
term_up = term_dc = term_DC = visible_bell = (char *)NULL;
+
+ /* Does the _GO32_ have a meta key? I don't know. */
+ term_has_meta = 0;
+ term_mm = term_mo = (char *)NULL;
+
+ /* It probably has arrow keys, but I don't know what they are. */
+ term_ku = term_kd = term_kr = term_kl = (char *)NULL;
+
#if defined (HACK_TERMCAP_MOTION)
- term_forward_char = (char *)NULL;
+ term_forward_char = (char *)NULL;
#endif
terminal_can_insert = 0;
return;
-#else
- extern char *tgetstr ();
+#else /* !__GO32__ */
char *term, *buffer;
-#if defined (TIOCGWINSZ)
- struct winsize window_size;
-#endif
int tty;
term = terminal_name ? terminal_name : getenv ("TERM");
term_cr = "\r";
term_im = term_ei = term_ic = term_IC = (char *)NULL;
term_up = term_dc = term_DC = visible_bell = (char *)NULL;
+ term_ku = term_kd = term_kl = term_kr = (char *)NULL;
#if defined (HACK_TERMCAP_MOTION)
term_forward_char = (char *)NULL;
#endif
tty = 0;
screenwidth = screenheight = 0;
-#if defined (TIOCGWINSZ)
- if (ioctl (tty, TIOCGWINSZ, &window_size) == 0)
- {
- screenwidth = (int) window_size.ws_col;
- screenheight = (int) window_size.ws_row;
- }
-#endif
-
- if (screenwidth <= 0 || screenheight <= 0)
- {
- screenwidth = tgetnum ("co");
- screenheight = tgetnum ("li");
- }
-
- screenwidth--;
- if (screenwidth <= 0)
- screenwidth = 79;
-
- if (screenheight <= 0)
- screenheight = 24;
+ _rl_set_screen_size (tty, 0);
term_im = tgetstr ("im", &buffer);
term_ei = tgetstr ("ei", &buffer);
term_DC = tgetstr ("DC", &buffer);
visible_bell = tgetstr ("vb", &buffer);
+
+ /* Check to see if this terminal has a meta key. */
+ term_has_meta = (tgetflag ("km") || tgetflag ("MT"));
+ if (term_has_meta)
+ {
+ term_mm = tgetstr ("mm", &buffer);
+ term_mo = tgetstr ("mo", &buffer);
+ }
+ else
+ {
+ term_mm = (char *)NULL;
+ term_mo = (char *)NULL;
+ }
+
+ /* Attempt to find and bind the arrow keys. Do not override already
+ bound keys in an overzealous attempt, however. */
+ term_ku = tgetstr ("ku", &buffer);
+ term_kd = tgetstr ("kd", &buffer);
+ term_kr = tgetstr ("kr", &buffer);
+ term_kl = tgetstr ("kl", &buffer);
+
+ if (term_ku)
+ {
+ Function *func;
+
+ func = rl_function_of_keyseq (term_ku, _rl_keymap, (int *)NULL);
+
+ if (!func || func == rl_do_lowercase_version)
+ rl_set_key (term_ku, rl_get_previous_history, _rl_keymap);
+ }
+
+ if (term_kd)
+ {
+ Function *func;
+
+ func = rl_function_of_keyseq (term_kd, _rl_keymap, (int *)NULL);
+
+ if (!func || func == rl_do_lowercase_version)
+ rl_set_key (term_kd, rl_get_next_history, _rl_keymap);
+ }
+
+ if (term_kr)
+ {
+ Function *func;
+
+ func = rl_function_of_keyseq (term_kr, _rl_keymap, (int *)NULL);
+
+ if (!func || func == rl_do_lowercase_version)
+ rl_set_key (term_kr, rl_forward, _rl_keymap);
+ }
+
+ if (term_kl)
+ {
+ Function *func;
+
+ func = rl_function_of_keyseq (term_kl, _rl_keymap, (int *)NULL);
+
+ if (!func || func == rl_do_lowercase_version)
+ rl_set_key (term_kl, rl_backward, _rl_keymap);
+ }
#endif /* !__GO32__ */
}
/* A function for the use of tputs () */
-static void
-output_character_function (c)
+void
+_rl_output_character_function (c)
int c;
{
putc (c, out_stream);
}
/* Write COUNT characters from STRING to the output stream. */
-static void
-output_some_chars (string, count)
+void
+_rl_output_some_chars (string, count)
char *string;
int count;
{
fwrite (string, 1, count, out_stream);
}
-/* Delete COUNT characters from the display line. */
-static
-delete_chars (count)
- int count;
-{
-#ifdef __GO32__
- int r, c, w;
- ScreenGetCursor(&r, &c);
- w = ScreenCols();
- memcpy(ScreenPrimary+r*w+c, ScreenPrimary+r*w+c+count, w-c-count);
- memset(ScreenPrimary+r*w+w-count, 0, count*2);
-#else /* __GO32__ */
- if (count > screenwidth)
- return;
-
- if (term_DC && *term_DC)
- {
- char *tgoto (), *buffer;
- buffer = tgoto (term_DC, 0, count);
- tputs (buffer, 1, output_character_function);
- }
- else
- {
- if (term_dc && *term_dc)
- while (count--)
- tputs (term_dc, 1, output_character_function);
- }
-#endif /* __GO32__ */
-}
-
-/* Insert COUNT characters from STRING to the output stream. */
-static void
-insert_some_chars (string, count)
- char *string;
- int count;
-{
-#ifdef __GO32__
- int r, c, w;
- ScreenGetCursor(&r, &c);
- w = ScreenCols();
- memcpy(ScreenPrimary+r*w+c+count, ScreenPrimary+r*w+c, w-c-count);
- /* Print the text. */
- output_some_chars (string, count);
-#else /* __GO32__ */
- /* If IC is defined, then we do not have to "enter" insert mode. */
- if (term_IC)
- {
- char *tgoto (), *buffer;
- buffer = tgoto (term_IC, 0, count);
- tputs (buffer, 1, output_character_function);
- output_some_chars (string, count);
- }
- else
- {
- register int i;
-
- /* If we have to turn on insert-mode, then do so. */
- if (term_im && *term_im)
- tputs (term_im, 1, output_character_function);
- /* If there is a special command for inserting characters, then
- use that first to open up the space. */
- if (term_ic && *term_ic)
- {
- for (i = count; i--; )
- tputs (term_ic, 1, output_character_function);
- }
-
- /* Print the text. */
- output_some_chars (string, count);
-
- /* If there is a string to turn off insert mode, we had best use
- it now. */
- if (term_ei && *term_ei)
- tputs (term_ei, 1, output_character_function);
- }
-#endif /* __GO32__ */
-}
/* Move the cursor back. */
backspace (count)
#ifndef __GO32__
if (term_backspace)
for (i = 0; i < count; i++)
- tputs (term_backspace, 1, output_character_function);
+ tputs (term_backspace, 1, _rl_output_character_function);
else
#endif /* !__GO32__ */
for (i = 0; i < count; i++)
crlf ()
{
#if defined (NEW_TTY_DRIVER)
- tputs (term_cr, 1, output_character_function);
+ tputs (term_cr, 1, _rl_output_character_function);
#endif /* NEW_TTY_DRIVER */
putc ('\n', out_stream);
}
-/* Clear to the end of the line. COUNT is the minimum
- number of character spaces to clear, */
-static void
-clear_to_eol (count)
- int count;
-{
-#ifndef __GO32__
- if (term_clreol)
- {
- tputs (term_clreol, 1, output_character_function);
- }
- else
-#endif /* !__GO32__ */
- {
- register int i;
-
- /* Do one more character space. */
- count++;
-
- for (i = 0; i < count; i++)
- putc (' ', out_stream);
-
- backspace (count);
- }
-}
-
-\f
-/* **************************************************************** */
-/* */
-/* Saving and Restoring the TTY */
-/* */
-/* **************************************************************** */
-
-/* Non-zero means that the terminal is in a prepped state. */
-static int terminal_prepped = 0;
-
-#if defined (NEW_TTY_DRIVER)
-
-/* Standard flags, including ECHO. */
-static int original_tty_flags = 0;
-
-/* Local mode flags, like LPASS8. */
-static int local_mode_flags = 0;
-
-/* Terminal characters. This has C-s and C-q in it. */
-static struct tchars original_tchars;
-
-/* Local special characters. This has the interrupt characters in it. */
-#if defined (TIOCGLTC)
-static struct ltchars original_ltchars;
-#endif
-
-/* We use this to get and set the tty_flags. */
-static struct sgttyb the_ttybuff;
-
-/* Put the terminal in CBREAK mode so that we can detect key presses. */
-static void
-rl_prep_terminal ()
-{
-#ifndef __GO32__
- int tty = fileno (rl_instream);
- SIGNALS_DECLARE_SAVED (saved_signals);
-
- if (terminal_prepped)
- return;
-
- SIGNALS_BLOCK (SIGINT, saved_signals);
-
- /* We always get the latest tty values. Maybe stty changed them. */
- ioctl (tty, TIOCGETP, &the_ttybuff);
- original_tty_flags = the_ttybuff.sg_flags;
-
- readline_echoing_p = (original_tty_flags & ECHO);
-
-#if defined (TIOCLGET)
- ioctl (tty, TIOCLGET, &local_mode_flags);
-#endif
-
-#if !defined (ANYP)
-# define ANYP (EVENP | ODDP)
-#endif
-
- /* If this terminal doesn't care how the 8th bit is used,
- then we can use it for the meta-key. We check by seeing
- if BOTH odd and even parity are allowed. */
- if (the_ttybuff.sg_flags & ANYP)
- {
-#if defined (PASS8)
- the_ttybuff.sg_flags |= PASS8;
-#endif
-
- /* Hack on local mode flags if we can. */
-#if defined (TIOCLGET) && defined (LPASS8)
- {
- int flags;
- flags = local_mode_flags | LPASS8;
- ioctl (tty, TIOCLSET, &flags);
- }
-#endif /* TIOCLGET && LPASS8 */
- }
-
-#if defined (TIOCGETC)
- {
- struct tchars temp;
-
- ioctl (tty, TIOCGETC, &original_tchars);
- temp = original_tchars;
-
-#if defined (USE_XON_XOFF)
- /* Get rid of C-s and C-q.
- We remember the value of startc (C-q) so that if the terminal is in
- xoff state, the user can xon it by pressing that character. */
- xon_char = temp.t_startc;
- temp.t_stopc = -1;
- temp.t_startc = -1;
-
- /* If there is an XON character, bind it to restart the output. */
- if (xon_char != -1)
- rl_bind_key (xon_char, rl_restart_output);
-#endif /* USE_XON_XOFF */
-
- /* If there is an EOF char, bind eof_char to it. */
- if (temp.t_eofc != -1)
- eof_char = temp.t_eofc;
-
-#if defined (NO_KILL_INTR)
- /* Get rid of C-\ and C-c. */
- temp.t_intrc = temp.t_quitc = -1;
-#endif /* NO_KILL_INTR */
-
- ioctl (tty, TIOCSETC, &temp);
- }
-#endif /* TIOCGETC */
-
-#if defined (TIOCGLTC)
- {
- struct ltchars temp;
-
- ioctl (tty, TIOCGLTC, &original_ltchars);
- temp = original_ltchars;
-
- /* Make the interrupt keys go away. Just enough to make people
- happy. */
- temp.t_dsuspc = -1; /* C-y */
- temp.t_lnextc = -1; /* C-v */
-
- ioctl (tty, TIOCSLTC, &temp);
- }
-#endif /* TIOCGLTC */
-
- the_ttybuff.sg_flags &= ~(ECHO | CRMOD);
- the_ttybuff.sg_flags |= CBREAK;
- ioctl (tty, TIOCSETN, &the_ttybuff);
-
- terminal_prepped = 1;
-
- SIGNALS_RESTORE (saved_signals);
-#endif /* !__GO32__ */
-}
-
-/* Restore the terminal to its original state. */
-static void
-rl_deprep_terminal ()
-{
-#ifndef __GO32__
- int tty = fileno (rl_instream);
- SIGNALS_DECLARE_SAVED (saved_signals);
-
- if (!terminal_prepped)
- return;
-
- SIGNALS_BLOCK (SIGINT, saved_signals);
-
- the_ttybuff.sg_flags = original_tty_flags;
- ioctl (tty, TIOCSETN, &the_ttybuff);
- readline_echoing_p = 1;
-
-#if defined (TIOCLGET)
- ioctl (tty, TIOCLSET, &local_mode_flags);
-#endif
-
-#if defined (TIOCSLTC)
- ioctl (tty, TIOCSLTC, &original_ltchars);
-#endif
-
-#if defined (TIOCSETC)
- ioctl (tty, TIOCSETC, &original_tchars);
-#endif
- terminal_prepped = 0;
-
- SIGNALS_RESTORE (saved_signals);
-#endif /* !__GO32 */
-}
-
-#else /* !defined (NEW_TTY_DRIVER) */
-
-#if !defined (VMIN)
-#define VMIN VEOF
-#endif
-
-#if !defined (VTIME)
-#define VTIME VEOL
-#endif
-
-#ifndef __GO32__
-#if defined (TERMIOS_TTY_DRIVER)
-static struct termios otio;
-#else
-static struct termio otio;
-#endif /* !TERMIOS_TTY_DRIVER */
-#endif /* __GO32__ */
-
-static void
-rl_prep_terminal ()
-{
-#ifndef __GO32__
- int tty = fileno (rl_instream);
-#if defined (TERMIOS_TTY_DRIVER)
- struct termios tio;
-#else
- struct termio tio;
-#endif /* !TERMIOS_TTY_DRIVER */
-
- SIGNALS_DECLARE_SAVED (saved_signals);
-
- if (terminal_prepped)
- return;
-
- /* Try to keep this function from being INTerrupted. We can do it
- on POSIX and systems with BSD-like signal handling. */
- SIGNALS_BLOCK (SIGINT, saved_signals);
-
-#if defined (TERMIOS_TTY_DRIVER)
- tcgetattr (tty, &tio);
-#else
- ioctl (tty, TCGETA, &tio);
-#endif /* !TERMIOS_TTY_DRIVER */
-
- otio = tio;
-
- readline_echoing_p = (tio.c_lflag & ECHO);
-
- tio.c_lflag &= ~(ICANON|ECHO);
-
- if (otio.c_cc[VEOF] != _POSIX_VDISABLE)
- eof_char = otio.c_cc[VEOF];
-
-#if defined (USE_XON_XOFF)
-#if defined (IXANY)
- tio.c_iflag &= ~(IXON|IXOFF|IXANY);
-#else
- /* `strict' Posix systems do not define IXANY. */
- tio.c_iflag &= ~(IXON|IXOFF);
-#endif /* IXANY */
-#endif /* USE_XON_XOFF */
-
- /* Only turn this off if we are using all 8 bits. */
- /* |ISTRIP|INPCK */
- tio.c_iflag &= ~(ISTRIP | INPCK);
-
- /* Make sure we differentiate between CR and NL on input. */
- tio.c_iflag &= ~(ICRNL | INLCR);
-
-#if !defined (HANDLE_SIGNALS)
- tio.c_lflag &= ~ISIG;
-#else
- tio.c_lflag |= ISIG;
-#endif
-
- tio.c_cc[VMIN] = 1;
- tio.c_cc[VTIME] = 0;
-
- /* Turn off characters that we need on Posix systems with job control,
- just to be sure. This includes ^Y and ^V. This should not really
- be necessary. */
-#if defined (TERMIOS_TTY_DRIVER) && defined (_POSIX_JOB_CONTROL)
-
-#if defined (VLNEXT)
- tio.c_cc[VLNEXT] = _POSIX_VDISABLE;
-#endif
-
-#if defined (VDSUSP)
- tio.c_cc[VDSUSP] = _POSIX_VDISABLE;
-#endif
-
-#endif /* POSIX && JOB_CONTROL */
-
-#if defined (TERMIOS_TTY_DRIVER)
- tcsetattr (tty, TCSADRAIN, &tio);
- tcflow (tty, TCOON); /* Simulate a ^Q. */
-#else
- ioctl (tty, TCSETAW, &tio);
- ioctl (tty, TCXONC, 1); /* Simulate a ^Q. */
-#endif /* !TERMIOS_TTY_DRIVER */
-
- terminal_prepped = 1;
-
- SIGNALS_RESTORE (saved_signals);
-#endif /* !__GO32__ */
-}
-
-static void
-rl_deprep_terminal ()
-{
-#ifndef __GO32__
- int tty = fileno (rl_instream);
-
- /* Try to keep this function from being INTerrupted. We can do it
- on POSIX and systems with BSD-like signal handling. */
- SIGNALS_DECLARE_SAVED (saved_signals);
-
- if (!terminal_prepped)
- return;
-
- SIGNALS_BLOCK (SIGINT, saved_signals);
-
-#if defined (TERMIOS_TTY_DRIVER)
- tcsetattr (tty, TCSADRAIN, &otio);
- tcflow (tty, TCOON); /* Simulate a ^Q. */
-#else /* TERMIOS_TTY_DRIVER */
- ioctl (tty, TCSETAW, &otio);
- ioctl (tty, TCXONC, 1); /* Simulate a ^Q. */
-#endif /* !TERMIOS_TTY_DRIVER */
-
- terminal_prepped = 0;
-
- SIGNALS_RESTORE (saved_signals);
-#endif /* !__GO32__ */
-}
-#endif /* NEW_TTY_DRIVER */
-
\f
/* **************************************************************** */
/* */
return (1);
if (allow_pathname_alphabetic_chars)
- return ((int)rindex (pathname_alphabetic_chars, c));
+ return ((int) strchr (pathname_alphabetic_chars, c));
else
return (0);
}
if (readline_echoing_p)
{
#ifndef __GO32__
- if (prefer_visible_bell && visible_bell)
- tputs (visible_bell, 1, output_character_function);
+ if (_rl_prefer_visible_bell && visible_bell)
+ tputs (visible_bell, 1, _rl_output_character_function);
else
#endif /* !__GO32__ */
{
/* Return a copy of the string between FROM and TO.
FROM is inclusive, TO is not. */
-#if defined (sun) /* Yes, that's right, some crufty function in sunview is
- called rl_copy (). */
-static
-#endif
char *
-rl_copy (from, to)
+rl_copy_text (from, to)
int from, to;
{
register int length;
rl_insert_text (string)
char *string;
{
- extern int doing_an_undo;
register int i, l = strlen (string);
if (rl_end + l >= rl_line_buffer_len)
rl_delete_text (from, to)
int from, to;
{
- extern int doing_an_undo;
register char *text;
/* Fix it if the caller is confused. */
from = to;
to = t;
}
- text = rl_copy (from, to);
+ text = rl_copy_text (from, to);
strncpy (the_line + from, the_line + to, rl_end - to);
/* Remember how to undo this delete. */
while (count)
{
#if defined (VI_MODE)
- if (rl_point == (rl_end - (rl_editing_mode == vi_mode)))
+ if (rl_point >= (rl_end - (rl_editing_mode == vi_mode)))
#else
if (rl_point == rl_end)
#endif /* VI_MODE */
/* Clear the current line. Numeric argument to C-l does this. */
rl_refresh_line ()
{
- int curr_line = last_c_pos / screenwidth;
- extern char *term_clreol;
+ int curr_line = _rl_last_c_pos / screenwidth;
- move_vert(curr_line);
- move_cursor_relative (0, the_line); /* XXX is this right */
+ _rl_move_vert (curr_line);
+ _rl_move_cursor_relative (0, the_line); /* XXX is this right */
#ifdef __GO32__
{
- int r, c, w;
- ScreenGetCursor(&r, &c);
- w = ScreenCols();
- memset(ScreenPrimary+r*w+c, 0, (w-c)*2);
+ int row, col, width, row_start;
+
+ ScreenGetCursor (&row, &col);
+ width = ScreenCols ();
+ row_start = ScreenPrimary + (row * width);
+ memset (row_start + col, 0, (width - col) * 2);
}
#else /* __GO32__ */
if (term_clreol)
- tputs (term_clreol, 1, output_character_function);
+ tputs (term_clreol, 1, _rl_output_character_function);
#endif /* __GO32__/else */
rl_forced_update_display ();
the current line. */
rl_clear_screen ()
{
- extern char *term_clrpag;
-
if (rl_explicit_arg)
{
rl_refresh_line ();
#ifndef __GO32__
if (term_clrpag)
- tputs (term_clrpag, 1, output_character_function);
+ tputs (term_clrpag, 1, _rl_output_character_function);
else
#endif /* !__GO32__ */
crlf ();
readline because of extra large arguments. */
if (count > 1 && count < 1024)
{
- string = alloca (1 + count);
+ string = (char *)alloca (1 + count);
for (i = 0; i < count; i++)
string[i] = c;
{
int decreaser;
- string = alloca (1024 + 1);
+ string = (char *)alloca (1024 + 1);
for (i = 0; i < 1024; i++)
string[i] = c;
int key = 0, t;
i = 0;
- string = alloca (ibuffer_len + 1);
+ string = (char *)alloca (ibuffer_len + 1);
string[i++] = c;
while ((t = rl_get_char (&key)) &&
- (keymap[key].type == ISFUNC &&
- keymap[key].function == rl_insert))
+ (_rl_keymap[key].type == ISFUNC &&
+ _rl_keymap[key].function == rl_insert))
string[i++] = key;
if (t)
else
{
/* Inserting a single character. */
- string = alloca (2);
+ string = (char *)alloca (2);
string[1] = '\0';
string[0] = c;
rl_quoted_insert (count)
int count;
{
- int c = rl_read_key ();
+ int c;
+
+ c = rl_read_key ();
rl_insert (count, c);
}
#if defined (VI_MODE)
{
- extern int vi_doing_insert;
- if (vi_doing_insert)
+ extern int _rl_vi_doing_insert;
+ if (_rl_vi_doing_insert)
{
rl_end_undo_group ();
- vi_doing_insert = 0;
+ _rl_vi_doing_insert = 0;
}
}
+ rl_vi_set_last ();
+
#endif /* VI_MODE */
if (readline_echoing_p)
{
- move_vert (vis_botlin);
- vis_botlin = 0;
+ _rl_move_vert (_rl_vis_botlin);
+ _rl_vis_botlin = 0;
crlf ();
fflush (out_stream);
rl_display_fixed++;
{
if (readline_echoing_p)
{
- move_vert (vis_botlin);
- vis_botlin = 0;
+ _rl_move_vert (_rl_vis_botlin);
+ _rl_vis_botlin = 0;
fflush (out_stream);
rl_restart_output ();
}
return;
}
- if (count > 1)
+ if (count > 1 || rl_explicit_arg)
{
int orig_point = rl_point;
rl_backward (count);
int c = the_line[--rl_point];
rl_delete_text (rl_point, rl_point + 1);
- if (rl_point == rl_end && alphabetic (c) && last_c_pos)
+ if (rl_point == rl_end && isprint (c) && _rl_last_c_pos)
{
- backspace (1);
- putc (' ', out_stream);
- backspace (1);
- last_c_pos--;
- visible_line[last_c_pos] = '\0';
- rl_display_fixed++;
+ int l;
+ l = rl_character_len (c, rl_point);
+ _rl_erase_at_end_of_line (l);
}
}
}
return;
}
- if (count > 1)
+ if (count > 1 || rl_explicit_arg)
{
int orig_point = rl_point;
rl_forward (count);
rl_delete_text (rl_point, rl_point + 1);
}
+/* Delete all spaces and tabs around point. */
+rl_delete_horizontal_space (count, ignore)
+ int count, ignore;
+{
+ int start = rl_point;
+
+ while (rl_point && whitespace (the_line[rl_point - 1]))
+ rl_point--;
+
+ start = rl_point;
+
+ while (rl_point < rl_end && whitespace (the_line[rl_point]))
+ rl_point++;
+
+ if (start == rl_point)
+ return;
+ else
+ {
+ rl_delete_text (start, rl_point);
+ rl_point = start;
+ }
+}
\f
/* **************************************************************** */
/* */
using behaviour that they expect. */
rl_unix_word_rubout ()
{
- if (!rl_point) ding ();
- else {
- int orig_point = rl_point;
- while (rl_point && whitespace (the_line[rl_point - 1]))
- rl_point--;
- while (rl_point && !whitespace (the_line[rl_point - 1]))
- rl_point--;
- rl_kill_text (rl_point, orig_point);
- }
+ if (!rl_point)
+ ding ();
+ else
+ {
+ int orig_point = rl_point;
+
+ while (rl_point && whitespace (the_line[rl_point - 1]))
+ rl_point--;
+
+ while (rl_point && !whitespace (the_line[rl_point - 1]))
+ rl_point--;
+
+ rl_kill_text (rl_point, orig_point);
+ }
}
/* Here is C-u doing what Unix does. You don't *have* to use these
doing. */
rl_unix_line_discard ()
{
- if (!rl_point) ding ();
- else {
- rl_kill_text (rl_point, 0);
- rl_point = 0;
- }
+ if (!rl_point)
+ ding ();
+ else
+ {
+ rl_kill_text (rl_point, 0);
+ rl_point = 0;
+ }
}
\f
-
/* **************************************************************** */
/* */
/* Commands For Typos */
}
/* Get the text of the words. */
- word1 = rl_copy (w1_beg, w1_end);
- word2 = rl_copy (w2_beg, w2_end);
+ word1 = rl_copy_text (w1_beg, w1_end);
+ word2 = rl_copy_text (w2_beg, w2_end);
/* We are about to do many insertions and deletions. Remember them
as one operation. */
rl_transpose_chars (count)
int count;
{
+ char dummy[2];
+
if (!count)
return;
- if (!rl_point || rl_end < 2) {
- ding ();
- return;
- }
+ if (!rl_point || rl_end < 2)
+ {
+ ding ();
+ return;
+ }
- while (count)
+ rl_begin_undo_group ();
+
+ if (rl_point == rl_end)
{
- if (rl_point == rl_end)
- {
- int t = the_line[rl_point - 1];
+ --rl_point;
+ count = 1;
+ }
+ rl_point--;
- the_line[rl_point - 1] = the_line[rl_point - 2];
- the_line[rl_point - 2] = t;
- }
- else
- {
- int t = the_line[rl_point];
+ dummy[0] = the_line[rl_point];
+ dummy[1] = '\0';
- the_line[rl_point] = the_line[rl_point - 1];
- the_line[rl_point - 1] = t;
+ rl_delete_text (rl_point, rl_point + 1);
- if (count < 0 && rl_point)
- rl_point--;
- else
- rl_point++;
- }
+ rl_point += count;
+ if (rl_point > rl_end)
+ rl_point = rl_end;
+ else if (rl_point < 0)
+ rl_point = 0;
+ rl_insert_text (dummy);
- if (count < 0)
- count++;
- else
- count--;
- }
+ rl_end_undo_group ();
}
-
\f
/* **************************************************************** */
/* */
-/* Bogus Flow Control */
+/* Undo, and Undoing */
/* */
/* **************************************************************** */
-rl_restart_output (count, key)
- int count, key;
-{
- int fildes = fileno (rl_outstream);
-#if defined (TIOCSTART)
-#if defined (apollo)
- ioctl (&fildes, TIOCSTART, 0);
-#else
- ioctl (fildes, TIOCSTART, 0);
-#endif /* apollo */
+/* Non-zero tells rl_delete_text and rl_insert_text to not add to
+ the undo list. */
+static int doing_an_undo = 0;
-#else
-# if defined (TERMIOS_TTY_DRIVER)
- tcflow (fildes, TCOON);
-# else
-# if defined (TCXONC)
- ioctl (fildes, TCXONC, TCOON);
-# endif /* TCXONC */
-# endif /* !TERMIOS_TTY_DRIVER */
-#endif /* TIOCSTART */
-}
+/* The current undo list for THE_LINE. */
+UNDO_LIST *rl_undo_list = (UNDO_LIST *)NULL;
-rl_stop_output (count, key)
- int count, key;
-{
- int fildes = fileno (rl_instream);
-
-#if defined (TIOCSTOP)
-# if defined (apollo)
- ioctl (&fildes, TIOCSTOP, 0);
-# else
- ioctl (fildes, TIOCSTOP, 0);
-# endif /* apollo */
-#else
-# if defined (TERMIOS_TTY_DRIVER)
- tcflow (fildes, TCOOFF);
-# else
-# if defined (TCXONC)
- ioctl (fildes, TCXONC, TCOON);
-# endif /* TCXONC */
-# endif /* !TERMIOS_TTY_DRIVER */
-#endif /* TIOCSTOP */
-}
-
-/* **************************************************************** */
-/* */
-/* Completion matching, from readline's point of view. */
-/* */
-/* **************************************************************** */
-
-/* Pointer to the generator function for completion_matches ().
- NULL means to use filename_entry_function (), the default filename
- completer. */
-Function *rl_completion_entry_function = (Function *)NULL;
-
-/* Pointer to alternative function to create matches.
- Function is called with TEXT, START, and END.
- START and END are indices in RL_LINE_BUFFER saying what the boundaries
- of TEXT are.
- If this function exists and returns NULL then call the value of
- rl_completion_entry_function to try to match, otherwise use the
- array of strings returned. */
-Function *rl_attempted_completion_function = (Function *)NULL;
-
-/* Local variable states what happened during the last completion attempt. */
-static int completion_changed_buffer = 0;
-
-/* Complete the word at or before point. You have supplied the function
- that does the initial simple matching selection algorithm (see
- completion_matches ()). The default is to do filename completion. */
-
-rl_complete (ignore, invoking_key)
- int ignore, invoking_key;
-{
- if (rl_last_func == rl_complete && !completion_changed_buffer)
- rl_complete_internal ('?');
- else
- rl_complete_internal (TAB);
-}
-
-/* List the possible completions. See description of rl_complete (). */
-rl_possible_completions ()
-{
- rl_complete_internal ('?');
-}
-
-/* The user must press "y" or "n". Non-zero return means "y" pressed. */
-get_y_or_n ()
-{
- int c;
- loop:
- c = rl_read_key ();
- if (c == 'y' || c == 'Y') return (1);
- if (c == 'n' || c == 'N') return (0);
- if (c == ABORT_CHAR) rl_abort ();
- ding (); goto loop;
-}
-
-/* Up to this many items will be displayed in response to a
- possible-completions call. After that, we ask the user if
- she is sure she wants to see them all. */
-int rl_completion_query_items = 100;
-
-/* The basic list of characters that signal a break between words for the
- completer routine. The contents of this variable is what breaks words
- in the shell, i.e. " \t\n\"\\'`@$><=" */
-char *rl_basic_word_break_characters = " \t\n\"\\'`@$><=;|&{(";
-
-/* The list of characters that signal a break between words for
- rl_complete_internal. The default list is the contents of
- rl_basic_word_break_characters. */
-char *rl_completer_word_break_characters = (char *)NULL;
-
-/* The list of characters which are used to quote a substring of the command
- line. Command completion occurs on the entire substring, and within the
- substring rl_completer_word_break_characters are treated as any other
- character, unless they also appear within this list. */
-char *rl_completer_quote_characters = (char *)NULL;
-
-/* List of characters that are word break characters, but should be left
- in TEXT when it is passed to the completion function. The shell uses
- this to help determine what kind of completing to do. */
-char *rl_special_prefixes = (char *)NULL;
-
-/* If non-zero, then disallow duplicates in the matches. */
-int rl_ignore_completion_duplicates = 1;
-
-/* Non-zero means that the results of the matches are to be treated
- as filenames. This is ALWAYS zero on entry, and can only be changed
- within a completion entry finder function. */
-int rl_filename_completion_desired = 0;
-
-/* This function, if defined, is called by the completer when real
- filename completion is done, after all the matching names have been
- generated. It is passed a (char**) known as matches in the code below.
- It consists of a NULL-terminated array of pointers to potential
- matching strings. The 1st element (matches[0]) is the maximal
- substring that is common to all matches. This function can re-arrange
- the list of matches as required, but all elements of the array must be
- free()'d if they are deleted. The main intent of this function is
- to implement FIGNORE a la SunOS csh. */
-Function *rl_ignore_some_completions_function = (Function *)NULL;
-
-/* Complete the word at or before point.
- WHAT_TO_DO says what to do with the completion.
- `?' means list the possible completions.
- TAB means do standard completion.
- `*' means insert all of the possible completions. */
-rl_complete_internal (what_to_do)
- int what_to_do;
-{
- char *filename_completion_function ();
- char **completion_matches (), **matches;
- Function *our_func;
- int start, scan, end, delimiter = 0;
- char *text, *saved_line_buffer;
- char quote_char = '\0';
- char *replacement;
-
- if (the_line)
- saved_line_buffer = savestring (the_line);
- else
- saved_line_buffer = (char *)NULL;
-
- if (rl_completion_entry_function)
- our_func = rl_completion_entry_function;
- else
- our_func = (int (*)())filename_completion_function;
-
- /* Only the completion entry function can change this. */
- rl_filename_completion_desired = 0;
-
- /* We now look backwards for the start of a filename/variable word. */
- end = rl_point;
-
- if (rl_point)
- {
- if (rl_completer_quote_characters)
- {
- /* We have a list of characters which can be used in pairs to quote
- substrings for completion. Try to find the start of an unclosed
- quoted substring.
- FIXME: Doesn't yet handle '\' escapes to hid embedded quotes */
- for (scan = 0; scan < end; scan++)
- {
- if (quote_char != '\0')
- {
- /* Ignore everything until the matching close quote char */
- if (the_line[scan] == quote_char)
- {
- /* Found matching close quote. Abandon this substring. */
- quote_char = '\0';
- rl_point = end;
- }
- }
- else if (rindex (rl_completer_quote_characters, the_line[scan]))
- {
- /* Found start of a quoted substring. */
- quote_char = the_line[scan];
- rl_point = scan + 1;
- }
- }
- }
- if (rl_point == end)
- {
- /* We didn't find an unclosed quoted substring upon which to do
- completion, so use the word break characters to find the
- substring on which to do completion. */
- while (--rl_point &&
- !rindex (rl_completer_word_break_characters,
- the_line[rl_point])) {;}
- }
-
- /* If we are at a word break, then advance past it. */
- if (rindex (rl_completer_word_break_characters, the_line[rl_point]))
- {
- /* If the character that caused the word break was a quoting
- character, then remember it as the delimiter. */
- if (rindex ("\"'", the_line[rl_point]) && (end - rl_point) > 1)
- delimiter = the_line[rl_point];
-
- /* If the character isn't needed to determine something special
- about what kind of completion to perform, then advance past it. */
-
- if (!rl_special_prefixes ||
- !rindex (rl_special_prefixes, the_line[rl_point]))
- rl_point++;
- }
- }
-
- start = rl_point;
- rl_point = end;
- text = rl_copy (start, end);
-
- /* If the user wants to TRY to complete, but then wants to give
- up and use the default completion function, they set the
- variable rl_attempted_completion_function. */
- if (rl_attempted_completion_function)
- {
- matches =
- (char **)(*rl_attempted_completion_function) (text, start, end);
-
- if (matches)
- {
- our_func = (Function *)NULL;
- goto after_usual_completion;
- }
- }
-
- matches = completion_matches (text, our_func);
-
- after_usual_completion:
- free (text);
-
- if (!matches)
- ding ();
- else
- {
- register int i;
-
- some_matches:
-
- /* It seems to me that in all the cases we handle we would like
- to ignore duplicate possibilities. Scan for the text to
- insert being identical to the other completions. */
- if (rl_ignore_completion_duplicates)
- {
- char *lowest_common;
- int j, newlen = 0;
-
- /* Sort the items. */
- /* It is safe to sort this array, because the lowest common
- denominator found in matches[0] will remain in place. */
- for (i = 0; matches[i]; i++);
- qsort (matches, i, sizeof (char *), compare_strings);
-
- /* Remember the lowest common denominator for it may be unique. */
- lowest_common = savestring (matches[0]);
-
- for (i = 0; matches[i + 1]; i++)
- {
- if (strcmp (matches[i], matches[i + 1]) == 0)
- {
- free (matches[i]);
- matches[i] = (char *)-1;
- }
- else
- newlen++;
- }
-
- /* We have marked all the dead slots with (char *)-1.
- Copy all the non-dead entries into a new array. */
- {
- char **temp_array =
- (char **)malloc ((3 + newlen) * sizeof (char *));
-
- for (i = 1, j = 1; matches[i]; i++)
- {
- if (matches[i] != (char *)-1)
- temp_array[j++] = matches[i];
- }
-
- temp_array[j] = (char *)NULL;
-
- if (matches[0] != (char *)-1)
- free (matches[0]);
-
- free (matches);
-
- matches = temp_array;
- }
-
- /* Place the lowest common denominator back in [0]. */
- matches[0] = lowest_common;
-
- /* If there is one string left, and it is identical to the
- lowest common denominator, then the LCD is the string to
- insert. */
- if (j == 2 && strcmp (matches[0], matches[1]) == 0)
- {
- free (matches[1]);
- matches[1] = (char *)NULL;
- }
- }
-
- switch (what_to_do)
- {
- case TAB:
- /* If we are matching filenames, then here is our chance to
- do clever processing by re-examining the list. Call the
- ignore function with the array as a parameter. It can
- munge the array, deleting matches as it desires. */
- if (rl_ignore_some_completions_function &&
- our_func == (int (*)())filename_completion_function)
- (void)(*rl_ignore_some_completions_function)(matches);
-
- /* If we are doing completions on quoted substrings, and any matches
- contain any of the completer word break characters, then auto-
- matically prepend the substring with a quote character (just
- pick the first one from the list of such) if it does not already
- begin with a quote string. FIXME: Need to remove any such
- automatically inserted quote character when it no longer is
- necessary, such as if we change the string we are completing on
- and the new set of matches don't require a quoted substring? */
-
- replacement = matches[0];
- if (matches[0] != NULL
- && rl_completer_quote_characters != NULL
- && (quote_char == '\0'))
- {
- for (i = 1; matches[i] != NULL; i++)
- {
- if (strpbrk (matches[i], rl_completer_word_break_characters))
- {
- /* Found an embedded word break character in a potential
- match, so need to prepend a quote character if we are
- replacing the completion string. */
- replacement = (char *)alloca (strlen (matches[0]) + 2);
- quote_char = *rl_completer_quote_characters;
- *replacement = quote_char;
- strcpy (replacement + 1, matches[0]);
- break;
- }
- }
- }
- if (replacement)
- {
- rl_delete_text (start, rl_point);
- rl_point = start;
- rl_insert_text (replacement);
- }
-
- /* If there are more matches, ring the bell to indicate.
- If this was the only match, and we are hacking files,
- check the file to see if it was a directory. If so,
- add a '/' to the name. If not, and we are at the end
- of the line, then add a space. */
- if (matches[1])
- {
- ding (); /* There are other matches remaining. */
- }
- else
- {
- char temp_string[16];
- int temp_index = 0;
-
- if (quote_char)
- {
- temp_string[temp_index++] = quote_char;
- }
- temp_string[temp_index++] = delimiter ? delimiter : ' ';
- temp_string[temp_index++] = '\0';
-
- if (rl_filename_completion_desired)
- {
- struct stat finfo;
- char *filename = tilde_expand (matches[0]);
-
- if ((stat (filename, &finfo) == 0) &&
- S_ISDIR (finfo.st_mode))
- {
- if (the_line[rl_point] != '/')
- rl_insert_text ("/");
- }
- else
- {
- if (rl_point == rl_end)
- rl_insert_text (temp_string);
- }
- free (filename);
- }
- else
- {
- if (rl_point == rl_end)
- rl_insert_text (temp_string);
- }
- }
- break;
-
- case '*':
- {
- int i = 1;
-
- rl_delete_text (start, rl_point);
- rl_point = start;
- rl_begin_undo_group ();
- if (matches[1])
- {
- while (matches[i])
- {
- rl_insert_text (matches[i++]);
- rl_insert_text (" ");
- }
- }
- else
- {
- rl_insert_text (matches[0]);
- rl_insert_text (" ");
- }
- rl_end_undo_group ();
- }
- break;
-
- case '?':
- {
- int len, count, limit, max = 0;
- int j, k, l;
-
- /* Handle simple case first. What if there is only one answer? */
- if (!matches[1])
- {
- char *temp;
-
- if (rl_filename_completion_desired)
- temp = rindex (matches[0], '/');
- else
- temp = (char *)NULL;
-
- if (!temp)
- temp = matches[0];
- else
- temp++;
-
- crlf ();
- fprintf (out_stream, "%s", temp);
- crlf ();
- goto restart;
- }
-
- /* There is more than one answer. Find out how many there are,
- and find out what the maximum printed length of a single entry
- is. */
- for (i = 1; matches[i]; i++)
- {
- char *temp = (char *)NULL;
-
- /* If we are hacking filenames, then only count the characters
- after the last slash in the pathname. */
- if (rl_filename_completion_desired)
- temp = rindex (matches[i], '/');
- else
- temp = (char *)NULL;
-
- if (!temp)
- temp = matches[i];
- else
- temp++;
-
- if (strlen (temp) > max)
- max = strlen (temp);
- }
-
- len = i;
-
- /* If there are many items, then ask the user if she
- really wants to see them all. */
- if (len >= rl_completion_query_items)
- {
- crlf ();
- fprintf (out_stream,
- "There are %d possibilities. Do you really", len);
- crlf ();
- fprintf (out_stream, "wish to see them all? (y or n)");
- fflush (out_stream);
- if (!get_y_or_n ())
- {
- crlf ();
- goto restart;
- }
- }
- /* How many items of MAX length can we fit in the screen window? */
- max += 2;
- limit = screenwidth / max;
- if (limit != 1 && (limit * max == screenwidth))
- limit--;
-
- /* Avoid a possible floating exception. If max > screenwidth,
- limit will be 0 and a divide-by-zero fault will result. */
- if (limit == 0)
- limit = 1;
-
- /* How many iterations of the printing loop? */
- count = (len + (limit - 1)) / limit;
-
- /* Watch out for special case. If LEN is less than LIMIT, then
- just do the inner printing loop. */
- if (len < limit) count = 1;
-
- /* Sort the items if they are not already sorted. */
- if (!rl_ignore_completion_duplicates)
- qsort (matches, len, sizeof (char *), compare_strings);
-
- /* Print the sorted items, up-and-down alphabetically, like
- ls might. */
- crlf ();
-
- for (i = 1; i < count + 1; i++)
- {
- for (j = 0, l = i; j < limit; j++)
- {
- if (l > len || !matches[l])
- {
- break;
- }
- else
- {
- char *temp = (char *)NULL;
-
- if (rl_filename_completion_desired)
- temp = rindex (matches[l], '/');
- else
- temp = (char *)NULL;
-
- if (!temp)
- temp = matches[l];
- else
- temp++;
-
- fprintf (out_stream, "%s", temp);
- for (k = 0; k < max - strlen (temp); k++)
- putc (' ', out_stream);
- }
- l += count;
- }
- crlf ();
- }
- restart:
-
- rl_on_new_line ();
- }
- break;
-
- default:
- abort ();
- }
-
- for (i = 0; matches[i]; i++)
- free (matches[i]);
- free (matches);
- }
-
- /* Check to see if the line has changed through all of this manipulation. */
- if (saved_line_buffer)
- {
- if (strcmp (the_line, saved_line_buffer) != 0)
- completion_changed_buffer = 1;
- else
- completion_changed_buffer = 0;
-
- free (saved_line_buffer);
- }
-}
-
-/* Stupid comparison routine for qsort () ing strings. */
-static int
-compare_strings (s1, s2)
- char **s1, **s2;
-{
- return (strcmp (*s1, *s2));
-}
-
-/* A completion function for usernames.
- TEXT contains a partial username preceded by a random
- character (usually `~'). */
-char *
-username_completion_function (text, state)
- int state;
- char *text;
-{
-#ifdef __GO32__
- return (char *)NULL;
-#else /* !__GO32__ */
- static char *username = (char *)NULL;
- static struct passwd *entry;
- static int namelen, first_char, first_char_loc;
-
- if (!state)
- {
- if (username)
- free (username);
-
- first_char = *text;
-
- if (first_char == '~')
- first_char_loc = 1;
- else
- first_char_loc = 0;
-
- username = savestring (&text[first_char_loc]);
- namelen = strlen (username);
- setpwent ();
- }
-
- while (entry = getpwent ())
- {
- if (strncmp (username, entry->pw_name, namelen) == 0)
- break;
- }
-
- if (!entry)
- {
- endpwent ();
- return ((char *)NULL);
- }
- else
- {
- char *value = (char *)xmalloc (2 + strlen (entry->pw_name));
-
- *value = *text;
-
- strcpy (value + first_char_loc, entry->pw_name);
-
- if (first_char == '~')
- rl_filename_completion_desired = 1;
-
- return (value);
- }
-#endif /* !__GO32__ */
-}
-\f
-/* **************************************************************** */
-/* */
-/* Undo, and Undoing */
-/* */
-/* **************************************************************** */
-
-/* Non-zero tells rl_delete_text and rl_insert_text to not add to
- the undo list. */
-int doing_an_undo = 0;
-
-/* The current undo list for THE_LINE. */
-UNDO_LIST *rl_undo_list = (UNDO_LIST *)NULL;
-
-/* Remember how to undo something. Concatenate some undos if that
- seems right. */
-rl_add_undo (what, start, end, text)
- enum undo_code what;
- int start, end;
- char *text;
+/* Remember how to undo something. Concatenate some undos if that
+ seems right. */
+rl_add_undo (what, start, end, text)
+ enum undo_code what;
+ int start, end;
+ char *text;
{
UNDO_LIST *temp = (UNDO_LIST *)xmalloc (sizeof (UNDO_LIST));
temp->what = what;
/* Free the existing undo list. */
free_undo_list ()
{
- while (rl_undo_list) {
- UNDO_LIST *release = rl_undo_list;
- rl_undo_list = rl_undo_list->next;
+ while (rl_undo_list)
+ {
+ UNDO_LIST *release = rl_undo_list;
+ rl_undo_list = rl_undo_list->next;
- if (release->what == UNDO_DELETE)
- free (release->text);
+ if (release->what == UNDO_DELETE)
+ free (release->text);
- free (release);
- }
+ free (release);
+ }
+ rl_undo_list = (UNDO_LIST *)NULL;
}
/* Undo the next thing in the list. Return 0 if there
if (waiting_for_begin)
waiting_for_begin--;
else
+#if 0
abort ();
+#else
+ ding ();
+#endif
break;
}
if (start != end)
{
- char *temp = rl_copy (start, end);
+ char *temp = rl_copy_text (start, end);
rl_begin_undo_group ();
rl_add_undo (UNDO_DELETE, start, end, temp);
rl_add_undo (UNDO_INSERT, start, end, (char *)NULL);
/* Revert the current line to its previous state. */
rl_revert_line ()
{
- if (!rl_undo_list) ding ();
- else {
- while (rl_undo_list)
- rl_do_undo ();
- }
+ if (!rl_undo_list)
+ ding ();
+ else
+ {
+ while (rl_undo_list)
+ rl_do_undo ();
+ }
}
/* Do some undoing of things that were done. */
}
/* Free the contents (and containing structure) of a HIST_ENTRY. */
+void
free_history_entry (entry)
HIST_ENTRY *entry;
{
}
}
-\f
+/* Make C be the next command to be executed. */
+rl_execute_next (c)
+ int c;
+{
+ rl_pending_input = c;
+}
+
/* **************************************************************** */
/* */
-/* I-Search and Searching */
+/* The Mark and the Region. */
/* */
/* **************************************************************** */
-/* Search backwards through the history looking for a string which is typed
- interactively. Start with the current line. */
-rl_reverse_search_history (sign, key)
- int sign;
- int key;
+/* Set the mark at POSITION. */
+rl_set_mark (position)
+ int position;
{
- rl_search_history (-sign, key);
-}
+ if (position > rl_end)
+ return;
-/* Search forwards through the history looking for a string which is typed
- interactively. Start with the current line. */
-rl_forward_search_history (sign, key)
- int sign;
- int key;
-{
- rl_search_history (sign, key);
+ rl_mark = position;
}
-/* Display the current state of the search in the echo-area.
- SEARCH_STRING contains the string that is being searched for,
- DIRECTION is zero for forward, or 1 for reverse,
- WHERE is the history list number of the current line. If it is
- -1, then this line is the starting one. */
-rl_display_search (search_string, reverse_p, where)
- char *search_string;
- int reverse_p, where;
+/* Exchange the position of mark and point. */
+rl_exchange_mark_and_point ()
{
- char *message = (char *)NULL;
-
- message = alloca (1 + (search_string ? strlen (search_string) : 0) + 30);
-
- *message = '\0';
-
-#if defined (NOTDEF)
- if (where != -1)
- sprintf (message, "[%d]", where + history_base);
-#endif /* NOTDEF */
+ if (rl_mark > rl_end)
+ rl_mark = -1;
- strcat (message, "(");
-
- if (reverse_p)
- strcat (message, "reverse-");
-
- strcat (message, "i-search)`");
-
- if (search_string)
- strcat (message, search_string);
+ if (rl_mark == -1)
+ {
+ ding ();
+ return;
+ }
+ else
+ {
+ int temp = rl_point;
- strcat (message, "': ");
- rl_message (message, 0, 0);
- rl_redisplay ();
+ rl_point = rl_mark;
+ rl_mark = temp;
+ }
}
-/* Search through the history looking for an interactively typed string.
- This is analogous to i-search. We start the search in the current line.
- DIRECTION is which direction to search; >= 0 means forward, < 0 means
- backwards. */
-rl_search_history (direction, invoking_key)
- int direction;
- int invoking_key;
-{
- /* The string that the user types in to search for. */
- char *search_string = alloca (128);
-
- /* The current length of SEARCH_STRING. */
- int search_string_index;
+\f
+/* **************************************************************** */
+/* */
+/* Killing Mechanism */
+/* */
+/* **************************************************************** */
- /* The list of lines to search through. */
- char **lines;
+/* What we assume for a max number of kills. */
+#define DEFAULT_MAX_KILLS 10
- /* The length of LINES. */
- int hlen;
+/* The real variable to look at to find out when to flush kills. */
+int rl_max_kills = DEFAULT_MAX_KILLS;
- /* Where we get LINES from. */
- HIST_ENTRY **hlist = history_list ();
+/* Where to store killed text. */
+char **rl_kill_ring = (char **)NULL;
- register int i = 0;
- int orig_point = rl_point;
- int orig_line = where_history ();
- int last_found_line = orig_line;
- int c, done = 0;
-
- /* The line currently being searched. */
- char *sline;
-
- /* Offset in that line. */
- int index;
-
- /* Non-zero if we are doing a reverse search. */
- int reverse = (direction < 0);
-
- /* Create an arrary of pointers to the lines that we want to search. */
- maybe_replace_line ();
- if (hlist)
- for (i = 0; hlist[i]; i++);
-
- /* Allocate space for this many lines, +1 for the current input line,
- and remember those lines. */
- lines = alloca ((1 + (hlen = i)) * sizeof (char *));
- for (i = 0; i < hlen; i++)
- lines[i] = hlist[i]->line;
-
- if (saved_line_for_history)
- lines[i] = saved_line_for_history->line;
- else
- /* So I have to type it in this way instead. */
- {
- char *alloced_line;
-
- /* Keep that mips alloca happy. */
- alloced_line = alloca (1 + strlen (the_line));
- lines[i] = alloced_line;
- strcpy (lines[i], &the_line[0]);
- }
-
- hlen++;
-
- /* The line where we start the search. */
- i = orig_line;
-
- /* Initialize search parameters. */
- *search_string = '\0';
- search_string_index = 0;
-
- /* Normalize DIRECTION into 1 or -1. */
- if (direction >= 0)
- direction = 1;
- else
- direction = -1;
-
- rl_display_search (search_string, reverse, -1);
-
- sline = the_line;
- index = rl_point;
-
- while (!done)
- {
- c = rl_read_key ();
-
- /* Hack C to Do What I Mean. */
- {
- Function *f = (Function *)NULL;
-
- if (keymap[c].type == ISFUNC)
- {
- f = keymap[c].function;
-
- if (f == rl_reverse_search_history)
- c = reverse ? -1 : -2;
- else if (f == rl_forward_search_history)
- c = !reverse ? -1 : -2;
- }
- }
-
- switch (c)
- {
- case ESC:
- done = 1;
- continue;
-
- /* case invoking_key: */
- case -1:
- goto search_again;
-
- /* switch directions */
- case -2:
- direction = -direction;
- reverse = (direction < 0);
-
- goto do_search;
-
- case CTRL ('G'):
- strcpy (the_line, lines[orig_line]);
- rl_point = orig_point;
- rl_end = strlen (the_line);
- rl_clear_message ();
- return;
-
- default:
- if (c < 32 || c > 126)
- {
- rl_execute_next (c);
- done = 1;
- continue;
- }
- else
- {
- search_string[search_string_index++] = c;
- search_string[search_string_index] = '\0';
- goto do_search;
-
- search_again:
-
- if (!search_string_index)
- continue;
- else
- {
- if (reverse)
- --index;
- else
- if (index != strlen (sline))
- ++index;
- else
- ding ();
- }
- do_search:
-
- while (1)
- {
- if (reverse)
- {
- while (index >= 0)
- if (strncmp
- (search_string, sline + index, search_string_index)
- == 0)
- goto string_found;
- else
- index--;
- }
- else
- {
- register int limit =
- (strlen (sline) - search_string_index) + 1;
-
- while (index < limit)
- {
- if (strncmp (search_string,
- sline + index,
- search_string_index) == 0)
- goto string_found;
- index++;
- }
- }
-
- next_line:
- i += direction;
-
- /* At limit for direction? */
- if ((reverse && i < 0) ||
- (!reverse && i == hlen))
- goto search_failed;
-
- sline = lines[i];
- if (reverse)
- index = strlen (sline);
- else
- index = 0;
-
- /* If the search string is longer than the current
- line, no match. */
- if (search_string_index > strlen (sline))
- goto next_line;
-
- /* Start actually searching. */
- if (reverse)
- index -= search_string_index;
- }
-
- search_failed:
- /* We cannot find the search string. Ding the bell. */
- ding ();
- i = last_found_line;
- break;
-
- string_found:
- /* We have found the search string. Just display it. But don't
- actually move there in the history list until the user accepts
- the location. */
- {
- int line_len;
-
- line_len = strlen (lines[i]);
-
- if (line_len >= rl_line_buffer_len)
- rl_extend_line_buffer (line_len);
-
- strcpy (the_line, lines[i]);
- rl_point = index;
- rl_end = line_len;
- last_found_line = i;
- rl_display_search
- (search_string, reverse, (i == orig_line) ? -1 : i);
- }
- }
- }
- continue;
- }
-
- /* The searching is over. The user may have found the string that she
- was looking for, or else she may have exited a failing search. If
- INDEX is -1, then that shows that the string searched for was not
- found. We use this to determine where to place rl_point. */
- {
- int now = last_found_line;
-
- /* First put back the original state. */
- strcpy (the_line, lines[orig_line]);
-
- if (now < orig_line)
- rl_get_previous_history (orig_line - now);
- else
- rl_get_next_history (now - orig_line);
-
- /* If the index of the "matched" string is less than zero, then the
- final search string was never matched, so put point somewhere
- reasonable. */
- if (index < 0)
- index = strlen (the_line);
-
- rl_point = index;
- rl_clear_message ();
- }
-}
-
-/* Make C be the next command to be executed. */
-rl_execute_next (c)
- int c;
-{
- rl_pending_input = c;
-}
-\f
-/* **************************************************************** */
-/* */
-/* Killing Mechanism */
-/* */
-/* **************************************************************** */
-
-/* What we assume for a max number of kills. */
-#define DEFAULT_MAX_KILLS 10
-
-/* The real variable to look at to find out when to flush kills. */
-int rl_max_kills = DEFAULT_MAX_KILLS;
-
-/* Where to store killed text. */
-char **rl_kill_ring = (char **)NULL;
-
-/* Where we are in the kill ring. */
-int rl_kill_index = 0;
+/* Where we are in the kill ring. */
+int rl_kill_index = 0;
/* How many slots we have in the kill ring. */
int rl_kill_ring_length = 0;
int from, to;
{
int slot;
- char *text = rl_copy (from, to);
+ char *text = rl_copy_text (from, to);
/* Is there anything to kill? */
if (from == to)
/* Yank back the last killed text. This ignores arguments. */
rl_yank ()
{
- if (!rl_kill_ring) rl_abort ();
+ if (!rl_kill_ring)
+ rl_abort ();
+
+ rl_set_mark (rl_point);
rl_insert_text (rl_kill_ring[rl_kill_index]);
}
rl_begin_undo_group ();
#if defined (VI_MODE)
- /* Vi mode always inserts a space befoe yanking the argument, and it
+ /* Vi mode always inserts a space before yanking the argument, and it
inserts it right *after* rl_point. */
if (rl_editing_mode == vi_mode)
rl_point++;
rl_emacs_editing_mode ()
{
rl_editing_mode = emacs_mode;
- keymap = emacs_standard_keymap;
+ _rl_keymap = emacs_standard_keymap;
}
\f
/* **************************************************************** */
/* */
-/* Completion */
+/* USG (System V) Support */
/* */
/* **************************************************************** */
-/* Non-zero means that case is not significant in completion. */
-int completion_case_fold = 0;
-
-/* Return an array of (char *) which is a list of completions for TEXT.
- If there are no completions, return a NULL pointer.
- The first entry in the returned array is the substitution for TEXT.
- The remaining entries are the possible completions.
- The array is terminated with a NULL pointer.
-
- ENTRY_FUNCTION is a function of two args, and returns a (char *).
- The first argument is TEXT.
- The second is a state argument; it should be zero on the first call, and
- non-zero on subsequent calls. It returns a NULL pointer to the caller
- when there are no more matches.
- */
-char **
-completion_matches (text, entry_function)
- char *text;
- char *(*entry_function) ();
+int
+rl_getc (stream)
+ FILE *stream;
{
- /* Number of slots in match_list. */
- int match_list_size;
-
- /* The list of matches. */
- char **match_list =
- (char **)xmalloc (((match_list_size = 10) + 1) * sizeof (char *));
-
- /* Number of matches actually found. */
- int matches = 0;
-
- /* Temporary string binder. */
- char *string;
+ int result;
+ unsigned char c;
- match_list[1] = (char *)NULL;
+#ifdef __GO32__
+ if (isatty (0))
+ return (getkey () & 0x7f);
+#endif /* __GO32__ */
- while (string = (*entry_function) (text, matches))
+ while (1)
{
- if (matches + 1 == match_list_size)
- match_list = (char **)xrealloc
- (match_list, ((match_list_size += 10) + 1) * sizeof (char *));
+ result = read (fileno (stream), &c, sizeof (unsigned char));
- match_list[++matches] = string;
- match_list[matches + 1] = (char *)NULL;
- }
+ if (result == sizeof (unsigned char))
+ return (c);
- /* If there were any matches, then look through them finding out the
- lowest common denominator. That then becomes match_list[0]. */
- if (matches)
- {
- register int i = 1;
- int low = 100000; /* Count of max-matched characters. */
+ /* If zero characters are returned, then the file that we are
+ reading from is empty! Return EOF in that case. */
+ if (result == 0)
+ return (EOF);
- /* If only one match, just use that. */
- if (matches == 1)
- {
- match_list[0] = match_list[1];
- match_list[1] = (char *)NULL;
- }
- else
+#if defined (EWOULDBLOCK)
+ if (errno == EWOULDBLOCK)
{
- /* Otherwise, compare each member of the list with
- the next, finding out where they stop matching. */
+ int flags;
- while (i < matches)
+ if ((flags = fcntl (fileno (stream), F_GETFL, 0)) < 0)
+ return (EOF);
+ if (flags & O_NDELAY)
{
- register int c1, c2, si;
-
- if (completion_case_fold)
- {
- for (si = 0;
- (c1 = to_lower(match_list[i][si])) &&
- (c2 = to_lower(match_list[i + 1][si]));
- si++)
- if (c1 != c2) break;
- }
- else
- {
- for (si = 0;
- (c1 = match_list[i][si]) &&
- (c2 = match_list[i + 1][si]);
- si++)
- if (c1 != c2) break;
- }
-
- if (low > si) low = si;
- i++;
+ flags &= ~O_NDELAY;
+ fcntl (fileno (stream), F_SETFL, flags);
+ continue;
}
- match_list[0] = (char *)xmalloc (low + 1);
- strncpy (match_list[0], match_list[1], low);
- match_list[0][low] = '\0';
- }
- }
- else /* There were no matches. */
- {
- free (match_list);
- match_list = (char **)NULL;
- }
- return (match_list);
-}
-
-/* Okay, now we write the entry_function for filename completion. In the
- general case. Note that completion in the shell is a little different
- because of all the pathnames that must be followed when looking up the
- completion for a command. */
-char *
-filename_completion_function (text, state)
- int state;
- char *text;
-{
- static DIR *directory;
- static char *filename = (char *)NULL;
- static char *dirname = (char *)NULL;
- static char *users_dirname = (char *)NULL;
- static int filename_len;
-
- dirent *entry = (dirent *)NULL;
-
- /* If we don't have any state, then do some initialization. */
- if (!state)
- {
- char *temp;
-
- if (dirname) free (dirname);
- if (filename) free (filename);
- if (users_dirname) free (users_dirname);
-
- filename = savestring (text);
- if (!*text) text = ".";
- dirname = savestring (text);
-
- temp = rindex (dirname, '/');
-
- if (temp)
- {
- strcpy (filename, ++temp);
- *temp = '\0';
- }
- else
- strcpy (dirname, ".");
-
- /* We aren't done yet. We also support the "~user" syntax. */
-
- /* Save the version of the directory that the user typed. */
- users_dirname = savestring (dirname);
- {
- char *temp_dirname;
-
- temp_dirname = tilde_expand (dirname);
- free (dirname);
- dirname = temp_dirname;
-
- if (rl_symbolic_link_hook)
- (*rl_symbolic_link_hook) (&dirname);
- }
- directory = opendir (dirname);
- filename_len = strlen (filename);
-
- rl_filename_completion_desired = 1;
- }
-
- /* At this point we should entertain the possibility of hacking wildcarded
- filenames, like /usr/man/man<WILD>/te<TAB>. If the directory name
- contains globbing characters, then build an array of directories to
- glob on, and glob on the first one. */
-
- /* Now that we have some state, we can read the directory. */
-
- while (directory && (entry = readdir (directory)))
- {
- /* Special case for no filename.
- All entries except "." and ".." match. */
- if (!filename_len)
- {
- if ((strcmp (entry->d_name, ".") != 0) &&
- (strcmp (entry->d_name, "..") != 0))
- break;
- }
- else
- {
- /* Otherwise, if these match upto the length of filename, then
- it is a match. */
- if (entry->d_name[0] == filename[0] && /* Quick test */
- (strncmp (filename, entry->d_name, filename_len) == 0))
- {
- break;
- }
- }
- }
-
- if (!entry)
- {
- if (directory)
- {
- closedir (directory);
- directory = (DIR *)NULL;
- }
- return (char *)NULL;
- }
- else
- {
- char *temp;
-
- if (dirname && (strcmp (dirname, ".") != 0))
- {
- temp = (char *)
- xmalloc (1 + strlen (users_dirname) + strlen (entry->d_name));
- strcpy (temp, users_dirname);
- strcat (temp, entry->d_name);
- }
- else
- {
- temp = (savestring (entry->d_name));
+ continue;
}
- return (temp);
- }
-}
-
-\f
-/* **************************************************************** */
-/* */
-/* Binding keys */
-/* */
-/* **************************************************************** */
-
-/* rl_add_defun (char *name, Function *function, int key)
- Add NAME to the list of named functions. Make FUNCTION
- be the function that gets called.
- If KEY is not -1, then bind it. */
-rl_add_defun (name, function, key)
- char *name;
- Function *function;
- int key;
-{
- if (key != -1)
- rl_bind_key (key, function);
- rl_add_funmap_entry (name, function);
-}
-
-/* Bind KEY to FUNCTION. Returns non-zero if KEY is out of range. */
-int
-rl_bind_key (key, function)
- int key;
- Function *function;
-{
- if (key < 0)
- return (key);
+#endif /* EWOULDBLOCK */
- if (key > 127 && key < 256)
- {
- if (keymap[ESC].type == ISKMAP)
+#if defined (_POSIX_VERSION) && defined (EAGAIN) && defined (O_NONBLOCK)
+ if (errno == EAGAIN)
{
- Keymap escmap = (Keymap)keymap[ESC].function;
-
- key -= 128;
- escmap[key].type = ISFUNC;
- escmap[key].function = function;
- return (0);
- }
- return (key);
- }
-
- keymap[key].type = ISFUNC;
- keymap[key].function = function;
- return (0);
-}
-
-/* Bind KEY to FUNCTION in MAP. Returns non-zero in case of invalid
- KEY. */
-int
-rl_bind_key_in_map (key, function, map)
- int key;
- Function *function;
- Keymap map;
-{
- int result;
- Keymap oldmap = keymap;
-
- keymap = map;
- result = rl_bind_key (key, function);
- keymap = oldmap;
- return (result);
-}
-
-/* Make KEY do nothing in the currently selected keymap.
- Returns non-zero in case of error. */
-int
-rl_unbind_key (key)
- int key;
-{
- return (rl_bind_key (key, (Function *)NULL));
-}
-
-/* Make KEY do nothing in MAP.
- Returns non-zero in case of error. */
-int
-rl_unbind_key_in_map (key, map)
- int key;
- Keymap map;
-{
- return (rl_bind_key_in_map (key, (Function *)NULL, map));
-}
-
-/* Bind the key sequence represented by the string KEYSEQ to
- FUNCTION. This makes new keymaps as necessary. The initial
- place to do bindings is in MAP. */
-rl_set_key (keyseq, function, map)
- char *keyseq;
- Function *function;
- Keymap map;
-{
- rl_generic_bind (ISFUNC, keyseq, function, map);
-}
-
-/* Bind the key sequence represented by the string KEYSEQ to
- the string of characters MACRO. This makes new keymaps as
- necessary. The initial place to do bindings is in MAP. */
-rl_macro_bind (keyseq, macro, map)
- char *keyseq, *macro;
- Keymap map;
-{
- char *macro_keys;
- int macro_keys_len;
-
- macro_keys = (char *)xmalloc ((2 * strlen (macro)) + 1);
-
- if (rl_translate_keyseq (macro, macro_keys, ¯o_keys_len))
- {
- free (macro_keys);
- return;
- }
- rl_generic_bind (ISMACR, keyseq, macro_keys, map);
-}
+ int flags;
-/* Bind the key sequence represented by the string KEYSEQ to
- the arbitrary pointer DATA. TYPE says what kind of data is
- pointed to by DATA, right now this can be a function (ISFUNC),
- a macro (ISMACR), or a keymap (ISKMAP). This makes new keymaps
- as necessary. The initial place to do bindings is in MAP. */
-
-static void
-rl_generic_bind (type, keyseq, data, map)
- int type;
- char *keyseq, *data;
- Keymap map;
-{
- char *keys;
- int keys_len;
- register int i;
-
- /* If no keys to bind to, exit right away. */
- if (!keyseq || !*keyseq)
- {
- if (type == ISMACR)
- free (data);
- return;
- }
-
- keys = alloca (1 + (2 * strlen (keyseq)));
-
- /* Translate the ASCII representation of KEYSEQ into an array
- of characters. Stuff the characters into ARRAY, and the
- length of ARRAY into LENGTH. */
- if (rl_translate_keyseq (keyseq, keys, &keys_len))
- return;
-
- /* Bind keys, making new keymaps as necessary. */
- for (i = 0; i < keys_len; i++)
- {
- if (i + 1 < keys_len)
- {
- if (map[keys[i]].type != ISKMAP)
+ if ((flags = fcntl (fileno (stream), F_GETFL, 0)) < 0)
+ return (EOF);
+ if (flags & O_NONBLOCK)
{
- if (map[i].type == ISMACR)
- free ((char *)map[i].function);
-
- map[keys[i]].type = ISKMAP;
- map[keys[i]].function = (Function *)rl_make_bare_keymap ();
- }
- map = (Keymap)map[keys[i]].function;
- }
- else
- {
- if (map[keys[i]].type == ISMACR)
- free ((char *)map[keys[i]].function);
-
- map[keys[i]].function = (Function *)data;
- map[keys[i]].type = type;
- }
- }
-}
-
-/* Translate the ASCII representation of SEQ, stuffing the
- values into ARRAY, an array of characters. LEN gets the
- final length of ARRAY. Return non-zero if there was an
- error parsing SEQ. */
-rl_translate_keyseq (seq, array, len)
- char *seq, *array;
- int *len;
-{
- register int i, c, l = 0;
-
- for (i = 0; c = seq[i]; i++)
- {
- if (c == '\\')
- {
- c = seq[++i];
-
- if (!c)
- break;
-
- if (((c == 'C' || c == 'M') && seq[i + 1] == '-') ||
- (c == 'e'))
- {
- /* Handle special case of backwards define. */
- if (strncmp (&seq[i], "C-\\M-", 5) == 0)
- {
- array[l++] = ESC;
- i += 5;
- array[l++] = CTRL (to_upper (seq[i]));
- if (!seq[i])
- i--;
- continue;
- }
-
- switch (c)
- {
- case 'M':
- i++;
- array[l++] = ESC;
- break;
-
- case 'C':
- i += 2;
- /* Special hack for C-?... */
- if (seq[i] == '?')
- array[l++] = RUBOUT;
- else
- array[l++] = CTRL (to_upper (seq[i]));
- break;
-
- case 'e':
- array[l++] = ESC;
- }
-
+ flags &= ~O_NONBLOCK;
+ fcntl (fileno (stream), F_SETFL, flags);
continue;
}
}
- array[l++] = c;
- }
-
- *len = l;
- array[l] = '\0';
- return (0);
-}
-
-/* Return a pointer to the function that STRING represents.
- If STRING doesn't have a matching function, then a NULL pointer
- is returned. */
-Function *
-rl_named_function (string)
- char *string;
-{
- register int i;
-
- for (i = 0; funmap[i]; i++)
- if (stricmp (funmap[i]->name, string) == 0)
- return (funmap[i]->function);
- return ((Function *)NULL);
-}
-
-/* The last key bindings file read. */
-#ifdef __MSDOS__
-/* Don't know what to do, but this is a guess */
-static char *last_readline_init_file = "/INPUTRC";
-#else
-static char *last_readline_init_file = "~/.inputrc";
-#endif
-
-/* Re-read the current keybindings file. */
-rl_re_read_init_file (count, ignore)
- int count, ignore;
-{
- rl_read_init_file ((char *)NULL);
-}
-
-/* Do key bindings from a file. If FILENAME is NULL it defaults
- to `~/.inputrc'. If the file existed and could be opened and
- read, 0 is returned, otherwise errno is returned. */
-int
-rl_read_init_file (filename)
- char *filename;
-{
- register int i;
- char *buffer, *openname, *line, *end;
- struct stat finfo;
- int file;
-
- /* Default the filename. */
- if (!filename)
- filename = last_readline_init_file;
-
- openname = tilde_expand (filename);
-
- if (!openname || *openname == '\000')
- return ENOENT;
-
- if ((stat (openname, &finfo) < 0) ||
- (file = open (openname, O_RDONLY, 0666)) < 0)
- {
- free (openname);
- return (errno);
- }
- else
- free (openname);
-
- last_readline_init_file = filename;
-
- /* Read the file into BUFFER. */
- buffer = (char *)xmalloc (finfo.st_size + 1);
- i = read (file, buffer, finfo.st_size);
- close (file);
-
- if (i != finfo.st_size)
- return (errno);
-
- /* Loop over the lines in the file. Lines that start with `#' are
- comments; all other lines are commands for readline initialization. */
- line = buffer;
- end = buffer + finfo.st_size;
- while (line < end)
- {
- /* Find the end of this line. */
- for (i = 0; line + i != end && line[i] != '\n'; i++);
-
- /* Mark end of line. */
- line[i] = '\0';
-
- /* If the line is not a comment, then parse it. */
- if (*line != '#')
- rl_parse_and_bind (line);
-
- /* Move to the next line. */
- line += i + 1;
- }
- return (0);
-}
-
-/* **************************************************************** */
-/* */
-/* Parser Directives */
-/* */
-/* **************************************************************** */
-
-/* Conditionals. */
-
-/* Calling programs set this to have their argv[0]. */
-char *rl_readline_name = "other";
-
-/* Stack of previous values of parsing_conditionalized_out. */
-static unsigned char *if_stack = (unsigned char *)NULL;
-static int if_stack_depth = 0;
-static int if_stack_size = 0;
-
-/* Push parsing_conditionalized_out, and set parser state based on ARGS. */
-parser_if (args)
- char *args;
-{
- register int i;
-
- /* Push parser state. */
- if (if_stack_depth + 1 >= if_stack_size)
- {
- if (!if_stack)
- if_stack = (unsigned char *)xmalloc (if_stack_size = 20);
- else
- if_stack = (unsigned char *)xrealloc (if_stack, if_stack_size += 20);
- }
- if_stack[if_stack_depth++] = parsing_conditionalized_out;
-
- /* If parsing is turned off, then nothing can turn it back on except
- for finding the matching endif. In that case, return right now. */
- if (parsing_conditionalized_out)
- return;
-
- /* Isolate first argument. */
- for (i = 0; args[i] && !whitespace (args[i]); i++);
-
- if (args[i])
- args[i++] = '\0';
-
- /* Handle "if term=foo" and "if mode=emacs" constructs. If this
- isn't term=foo, or mode=emacs, then check to see if the first
- word in ARGS is the same as the value stored in rl_readline_name. */
- if (rl_terminal_name && strnicmp (args, "term=", 5) == 0)
- {
- char *tem, *tname;
-
- /* Terminals like "aaa-60" are equivalent to "aaa". */
- tname = savestring (rl_terminal_name);
- tem = rindex (tname, '-');
- if (tem)
- *tem = '\0';
-
- if (stricmp (args + 5, tname) == 0)
- parsing_conditionalized_out = 0;
- else
- parsing_conditionalized_out = 1;
- }
-#if defined (VI_MODE)
- else if (strnicmp (args, "mode=", 5) == 0)
- {
- int mode;
-
- if (stricmp (args + 5, "emacs") == 0)
- mode = emacs_mode;
- else if (stricmp (args + 5, "vi") == 0)
- mode = vi_mode;
- else
- mode = no_mode;
-
- if (mode == rl_editing_mode)
- parsing_conditionalized_out = 0;
- else
- parsing_conditionalized_out = 1;
- }
-#endif /* VI_MODE */
- /* Check to see if the first word in ARGS is the same as the
- value stored in rl_readline_name. */
- else if (stricmp (args, rl_readline_name) == 0)
- parsing_conditionalized_out = 0;
- else
- parsing_conditionalized_out = 1;
-}
-
-/* Invert the current parser state if there is anything on the stack. */
-parser_else (args)
- char *args;
-{
- register int i;
-
- if (!if_stack_depth)
- {
- /* Error message? */
- return;
- }
-
- /* Check the previous (n - 1) levels of the stack to make sure that
- we haven't previously turned off parsing. */
- for (i = 0; i < if_stack_depth - 1; i++)
- if (if_stack[i] == 1)
- return;
-
- /* Invert the state of parsing if at top level. */
- parsing_conditionalized_out = !parsing_conditionalized_out;
-}
-
-/* Terminate a conditional, popping the value of
- parsing_conditionalized_out from the stack. */
-parser_endif (args)
- char *args;
-{
- if (if_stack_depth)
- parsing_conditionalized_out = if_stack[--if_stack_depth];
- else
- {
- /* *** What, no error message? *** */
- }
-}
-
-/* Associate textual names with actual functions. */
-static struct {
- char *name;
- Function *function;
-} parser_directives [] = {
- { "if", parser_if },
- { "endif", parser_endif },
- { "else", parser_else },
- { (char *)0x0, (Function *)0x0 }
-};
-
-/* Handle a parser directive. STATEMENT is the line of the directive
- without any leading `$'. */
-static int
-handle_parser_directive (statement)
- char *statement;
-{
- register int i;
- char *directive, *args;
-
- /* Isolate the actual directive. */
-
- /* Skip whitespace. */
- for (i = 0; whitespace (statement[i]); i++);
-
- directive = &statement[i];
-
- for (; statement[i] && !whitespace (statement[i]); i++);
-
- if (statement[i])
- statement[i++] = '\0';
-
- for (; statement[i] && whitespace (statement[i]); i++);
-
- args = &statement[i];
-
- /* Lookup the command, and act on it. */
- for (i = 0; parser_directives[i].name; i++)
- if (stricmp (directive, parser_directives[i].name) == 0)
- {
- (*parser_directives[i].function) (args);
- return (0);
- }
-
- /* *** Should an error message be output? */
- return (1);
-}
-
-/* Ugly but working hack for binding prefix meta. */
-#define PREFIX_META_HACK
-
-static int substring_member_of_array ();
-
-/* Read the binding command from STRING and perform it.
- A key binding command looks like: Keyname: function-name\0,
- a variable binding command looks like: set variable value.
- A new-style keybinding looks like "\C-x\C-x": exchange-point-and-mark. */
-rl_parse_and_bind (string)
- char *string;
-{
- extern char *possible_control_prefixes[], *possible_meta_prefixes[];
- char *funname, *kname;
- register int c;
- int key, i;
-
- while (string && whitespace (*string))
- string++;
-
- if (!string || !*string || *string == '#')
- return;
-
- /* If this is a parser directive, act on it. */
- if (*string == '$')
- {
- handle_parser_directive (&string[1]);
- return;
- }
-
- /* If we are supposed to be skipping parsing right now, then do it. */
- if (parsing_conditionalized_out)
- return;
-
- i = 0;
- /* If this keyname is a complex key expression surrounded by quotes,
- advance to after the matching close quote. */
- if (*string == '"')
- {
- for (i = 1; c = string[i]; i++)
- {
- if (c == '"' && string[i - 1] != '\\')
- break;
- }
- }
-
- /* Advance to the colon (:) or whitespace which separates the two objects. */
- for (; (c = string[i]) && c != ':' && c != ' ' && c != '\t'; i++ );
-
- /* Mark the end of the command (or keyname). */
- if (string[i])
- string[i++] = '\0';
-
- /* If this is a command to set a variable, then do that. */
- if (stricmp (string, "set") == 0)
- {
- char *var = string + i;
- char *value;
-
- /* Make VAR point to start of variable name. */
- while (*var && whitespace (*var)) var++;
-
- /* Make value point to start of value string. */
- value = var;
- while (*value && !whitespace (*value)) value++;
- if (*value)
- *value++ = '\0';
- while (*value && whitespace (*value)) value++;
-
- rl_variable_bind (var, value);
- return;
- }
-
- /* Skip any whitespace between keyname and funname. */
- for (; string[i] && whitespace (string[i]); i++);
- funname = &string[i];
-
- /* Now isolate funname.
- For straight function names just look for whitespace, since
- that will signify the end of the string. But this could be a
- macro definition. In that case, the string is quoted, so skip
- to the matching delimiter. */
- if (*funname == '\'' || *funname == '"')
- {
- int delimiter = string[i++];
-
- for (; c = string[i]; i++)
- {
- if (c == delimiter && string[i - 1] != '\\')
- break;
- }
- if (c)
- i++;
- }
-
- /* Advance to the end of the string. */
- for (; string[i] && !whitespace (string[i]); i++);
-
- /* No extra whitespace at the end of the string. */
- string[i] = '\0';
-
- /* If this is a new-style key-binding, then do the binding with
- rl_set_key (). Otherwise, let the older code deal with it. */
- if (*string == '"')
- {
- char *seq = alloca (1 + strlen (string));
- register int j, k = 0;
-
- for (j = 1; string[j]; j++)
- {
- if (string[j] == '"' && string[j - 1] != '\\')
- break;
-
- seq[k++] = string[j];
- }
- seq[k] = '\0';
-
- /* Binding macro? */
- if (*funname == '\'' || *funname == '"')
- {
- j = strlen (funname);
-
- if (j && funname[j - 1] == *funname)
- funname[j - 1] = '\0';
-
- rl_macro_bind (seq, &funname[1], keymap);
- }
- else
- rl_set_key (seq, rl_named_function (funname), keymap);
-
- return;
- }
-
- /* Get the actual character we want to deal with. */
- kname = rindex (string, '-');
- if (!kname)
- kname = string;
- else
- kname++;
-
- key = glean_key_from_name (kname);
-
- /* Add in control and meta bits. */
- if (substring_member_of_array (string, possible_control_prefixes))
- key = CTRL (to_upper (key));
-
- if (substring_member_of_array (string, possible_meta_prefixes))
- key = META (key);
-
- /* Temporary. Handle old-style keyname with macro-binding. */
- if (*funname == '\'' || *funname == '"')
- {
- char seq[2];
- int fl = strlen (funname);
-
- seq[0] = key; seq[1] = '\0';
- if (fl && funname[fl - 1] == *funname)
- funname[fl - 1] = '\0';
-
- rl_macro_bind (seq, &funname[1], keymap);
- }
-#if defined (PREFIX_META_HACK)
- /* Ugly, but working hack to keep prefix-meta around. */
- else if (stricmp (funname, "prefix-meta") == 0)
- {
- char seq[2];
-
- seq[0] = key;
- seq[1] = '\0';
- rl_generic_bind (ISKMAP, seq, (char *)emacs_meta_keymap, keymap);
- }
-#endif /* PREFIX_META_HACK */
- else
- rl_bind_key (key, rl_named_function (funname));
-}
-
-rl_variable_bind (name, value)
- char *name, *value;
-{
- if (stricmp (name, "editing-mode") == 0)
- {
- if (strnicmp (value, "vi", 2) == 0)
- {
-#if defined (VI_MODE)
- keymap = vi_insertion_keymap;
- rl_editing_mode = vi_mode;
-#else
-#if defined (NOTDEF)
- /* What state is the terminal in? I'll tell you:
- non-determinate! That means we cannot do any output. */
- ding ();
-#endif /* NOTDEF */
-#endif /* VI_MODE */
- }
- else if (strnicmp (value, "emacs", 5) == 0)
- {
- keymap = emacs_standard_keymap;
- rl_editing_mode = emacs_mode;
- }
- }
- else if (stricmp (name, "horizontal-scroll-mode") == 0)
- {
- if (!*value || stricmp (value, "On") == 0)
- horizontal_scroll_mode = 1;
- else
- horizontal_scroll_mode = 0;
- }
- else if (stricmp (name, "mark-modified-lines") == 0)
- {
- if (!*value || stricmp (value, "On") == 0)
- mark_modified_lines = 1;
- else
- mark_modified_lines = 0;
- }
- else if (stricmp (name, "prefer-visible-bell") == 0)
- {
- if (!*value || stricmp (value, "On") == 0)
- prefer_visible_bell = 1;
- else
- prefer_visible_bell = 0;
- }
- else if (stricmp (name, "comment-begin") == 0)
- {
-#if defined (VI_MODE)
- extern char *rl_vi_comment_begin;
-
- if (*value)
- {
- if (rl_vi_comment_begin)
- free (rl_vi_comment_begin);
-
- rl_vi_comment_begin = savestring (value);
- }
-#endif /* VI_MODE */
- }
-}
-
-/* Return the character which matches NAME.
- For example, `Space' returns ' '. */
-
-typedef struct {
- char *name;
- int value;
-} assoc_list;
-
-assoc_list name_key_alist[] = {
- { "DEL", 0x7f },
- { "ESC", '\033' },
- { "Escape", '\033' },
- { "LFD", '\n' },
- { "Newline", '\n' },
- { "RET", '\r' },
- { "Return", '\r' },
- { "Rubout", 0x7f },
- { "SPC", ' ' },
- { "Space", ' ' },
- { "Tab", 0x09 },
- { (char *)0x0, 0 }
-};
-
-int
-glean_key_from_name (name)
- char *name;
-{
- register int i;
-
- for (i = 0; name_key_alist[i].name; i++)
- if (stricmp (name, name_key_alist[i].name) == 0)
- return (name_key_alist[i].value);
-
- return (*name);
-}
-
-\f
-/* **************************************************************** */
-/* */
-/* Key Binding and Function Information */
-/* */
-/* **************************************************************** */
-
-/* Each of the following functions produces information about the
- state of keybindings and functions known to Readline. The info
- is always printed to rl_outstream, and in such a way that it can
- be read back in (i.e., passed to rl_parse_and_bind (). */
-
-/* Print the names of functions known to Readline. */
-void
-rl_list_funmap_names (ignore)
- int ignore;
-{
- register int i;
- char **funmap_names;
- extern char **rl_funmap_names ();
-
- funmap_names = rl_funmap_names ();
-
- if (!funmap_names)
- return;
-
- for (i = 0; funmap_names[i]; i++)
- fprintf (rl_outstream, "%s\n", funmap_names[i]);
-
- free (funmap_names);
-}
-
-/* Return a NULL terminated array of strings which represent the key
- sequences that are used to invoke FUNCTION in MAP. */
-static char **
-invoking_keyseqs_in_map (function, map)
- Function *function;
- Keymap map;
-{
- register int key;
- char **result;
- int result_index, result_size;
-
- result = (char **)NULL;
- result_index = result_size = 0;
-
- for (key = 0; key < 128; key++)
- {
- switch (map[key].type)
- {
- case ISMACR:
- /* Macros match, if, and only if, the pointers are identical.
- Thus, they are treated exactly like functions in here. */
- case ISFUNC:
- /* If the function in the keymap is the one we are looking for,
- then add the current KEY to the list of invoking keys. */
- if (map[key].function == function)
- {
- char *keyname = (char *)xmalloc (5);
-
- if (CTRL_P (key))
- sprintf (keyname, "\\C-%c", to_lower (UNCTRL (key)));
- else if (key == RUBOUT)
- sprintf (keyname, "\\C-?");
- else
- sprintf (keyname, "%c", key);
-
- if (result_index + 2 > result_size)
- {
- if (!result)
- result = (char **) xmalloc
- ((result_size = 10) * sizeof (char *));
- else
- result = (char **) xrealloc
- (result, (result_size += 10) * sizeof (char *));
- }
-
- result[result_index++] = keyname;
- result[result_index] = (char *)NULL;
- }
- break;
-
- case ISKMAP:
- {
- char **seqs = (char **)NULL;
-
- /* Find the list of keyseqs in this map which have FUNCTION as
- their target. Add the key sequences found to RESULT. */
- if (map[key].function)
- seqs =
- invoking_keyseqs_in_map (function, (Keymap)map[key].function);
-
- if (seqs)
- {
- register int i;
-
- for (i = 0; seqs[i]; i++)
- {
- char *keyname = (char *)xmalloc (6 + strlen (seqs[i]));
-
- if (key == ESC)
- sprintf (keyname, "\\e");
- else if (CTRL_P (key))
- sprintf (keyname, "\\C-%c", to_lower (UNCTRL (key)));
- else if (key == RUBOUT)
- sprintf (keyname, "\\C-?");
- else
- sprintf (keyname, "%c", key);
-
- strcat (keyname, seqs[i]);
-
- if (result_index + 2 > result_size)
- {
- if (!result)
- result = (char **)
- xmalloc ((result_size = 10) * sizeof (char *));
- else
- result = (char **)
- xrealloc (result,
- (result_size += 10) * sizeof (char *));
- }
-
- result[result_index++] = keyname;
- result[result_index] = (char *)NULL;
- }
- }
- }
- break;
- }
- }
- return (result);
-}
-
-/* Return a NULL terminated array of strings which represent the key
- sequences that can be used to invoke FUNCTION using the current keymap. */
-char **
-rl_invoking_keyseqs (function)
- Function *function;
-{
- return (invoking_keyseqs_in_map (function, keymap));
-}
-
-/* Print all of the current functions and their bindings to
- rl_outstream. If an explicit argument is given, then print
- the output in such a way that it can be read back in. */
-int
-rl_dump_functions (count)
- int count;
-{
- void rl_function_dumper ();
-
- rl_function_dumper (rl_explicit_arg);
- rl_on_new_line ();
- return (0);
-}
-
-/* Print all of the functions and their bindings to rl_outstream. If
- PRINT_READABLY is non-zero, then print the output in such a way
- that it can be read back in. */
-void
-rl_function_dumper (print_readably)
- int print_readably;
-{
- register int i;
- char **rl_funmap_names (), **names;
- char *name;
-
- names = rl_funmap_names ();
-
- fprintf (rl_outstream, "\n");
-
- for (i = 0; name = names[i]; i++)
- {
- Function *function;
- char **invokers;
-
- function = rl_named_function (name);
- invokers = invoking_keyseqs_in_map (function, keymap);
-
- if (print_readably)
- {
- if (!invokers)
- fprintf (rl_outstream, "# %s (not bound)\n", name);
- else
- {
- register int j;
-
- for (j = 0; invokers[j]; j++)
- {
- fprintf (rl_outstream, "\"%s\": %s\n",
- invokers[j], name);
- free (invokers[j]);
- }
-
- free (invokers);
- }
- }
- else
- {
- if (!invokers)
- fprintf (rl_outstream, "%s is not bound to any keys\n",
- name);
- else
- {
- register int j;
-
- fprintf (rl_outstream, "%s can be found on ", name);
-
- for (j = 0; invokers[j] && j < 5; j++)
- {
- fprintf (rl_outstream, "\"%s\"%s", invokers[j],
- invokers[j + 1] ? ", " : ".\n");
- }
-
- if (j == 5 && invokers[j])
- fprintf (rl_outstream, "...\n");
-
- for (j = 0; invokers[j]; j++)
- free (invokers[j]);
-
- free (invokers);
- }
- }
- }
-}
-
-\f
-/* **************************************************************** */
-/* */
-/* String Utility Functions */
-/* */
-/* **************************************************************** */
-
-static char *strindex ();
-
-/* Return pointer to first occurance in STRING1 of any character from STRING2,
- or NULL if no occurance found. */
-static char *
-strpbrk (string1, string2)
- char *string1, *string2;
-{
- register char *scan;
-
- for (; *string1 != '\0'; string1++)
- {
- for (scan = string2; *scan != '\0'; scan++)
- {
- if (*string1 == *scan)
- {
- return (string1);
- }
- }
- }
- return (NULL);
-}
-
-/* Return non-zero if any members of ARRAY are a substring in STRING. */
-static int
-substring_member_of_array (string, array)
- char *string, **array;
-{
- while (*array)
- {
- if (strindex (string, *array))
- return (1);
- array++;
- }
- return (0);
-}
-
-/* Whoops, Unix doesn't have strnicmp. */
-
-/* Compare at most COUNT characters from string1 to string2. Case
- doesn't matter. */
-static int
-strnicmp (string1, string2, count)
- char *string1, *string2;
-{
- register char ch1, ch2;
-
- while (count)
- {
- ch1 = *string1++;
- ch2 = *string2++;
- if (to_upper(ch1) == to_upper(ch2))
- count--;
- else break;
- }
- return (count);
-}
-
-/* strcmp (), but caseless. */
-static int
-stricmp (string1, string2)
- char *string1, *string2;
-{
- register char ch1, ch2;
-
- while (*string1 && *string2)
- {
- ch1 = *string1++;
- ch2 = *string2++;
- if (to_upper(ch1) != to_upper(ch2))
- return (1);
- }
- return (*string1 | *string2);
-}
-
-/* Determine if s2 occurs in s1. If so, return a pointer to the
- match in s1. The compare is case insensitive. */
-static char *
-strindex (s1, s2)
- register char *s1, *s2;
-{
- register int i, l = strlen (s2);
- register int len = strlen (s1);
-
- for (i = 0; (len - i) >= l; i++)
- if (strnicmp (&s1[i], s2, l) == 0)
- return (s1 + i);
- return ((char *)NULL);
-}
-
-\f
-/* **************************************************************** */
-/* */
-/* USG (System V) Support */
-/* */
-/* **************************************************************** */
-
-/* When compiling and running in the `Posix' environment, Ultrix does
- not restart system calls, so this needs to do it. */
-int
-rl_getc (stream)
- FILE *stream;
-{
- int result;
- unsigned char c;
-
-#ifdef __GO32__
- if (isatty(0))
- return getkey();
-#endif /* __GO32__ */
-
- while (1)
- {
- result = read (fileno (stream), &c, sizeof (char));
-
- if (result == sizeof (char))
- return (c);
-
- /* If zero characters are returned, then the file that we are
- reading from is empty! Return EOF in that case. */
- if (result == 0)
- return (EOF);
+#endif /* _POSIX_VERSION && EAGAIN && O_NONBLOCK */
#ifndef __GO32__
/* If the error that we received was SIGINT, then try again,
--- /dev/null
+/* rldefs.h -- an attempt to isolate some of the system-specific defines
+ for readline. This should be included after any files that define
+ system-specific constants like _POSIX_VERSION or USG. */
+
+/* Copyright (C) 1987,1989 Free Software Foundation, Inc.
+
+ This file contains the Readline Library (the Library), a set of
+ routines for providing Emacs style line input to programs that ask
+ for it.
+
+ The Library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 1, or (at your option)
+ any later version.
+
+ The Library is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined (_RLDEFS_H)
+#define _RLDEFS_H
+
+#if defined (__GNUC__)
+# undef alloca
+# define alloca __builtin_alloca
+#else
+# if defined (sparc) || defined (HAVE_ALLOCA_H)
+# include <alloca.h>
+# endif
+#endif
+
+#define NEW_TTY_DRIVER
+#define HAVE_BSD_SIGNALS
+/* #define USE_XON_XOFF */
+
+#ifdef __MSDOS__
+#undef NEW_TTY_DRIVER
+#undef HAVE_BSD_SIGNALS
+#endif
+
+#if defined (__linux__)
+# include <termcap.h>
+#endif /* __linux__ */
+
+/* Some USG machines have BSD signal handling (sigblock, sigsetmask, etc.) */
+#if defined (USG) && !defined (hpux)
+# undef HAVE_BSD_SIGNALS
+#endif
+
+/* System V machines use termio. */
+#if !defined (_POSIX_VERSION)
+# if defined (USG) || defined (hpux) || defined (Xenix) || defined (sgi) || defined (DGUX)
+# undef NEW_TTY_DRIVER
+# define TERMIO_TTY_DRIVER
+# include <termio.h>
+# if !defined (TCOON)
+# define TCOON 1
+# endif
+# endif /* USG || hpux || Xenix || sgi || DUGX */
+#endif /* !_POSIX_VERSION */
+
+/* Posix systems use termios and the Posix signal functions. */
+#if defined (_POSIX_VERSION)
+# if !defined (TERMIOS_MISSING)
+# undef NEW_TTY_DRIVER
+# define TERMIOS_TTY_DRIVER
+# include <termios.h>
+# endif /* !TERMIOS_MISSING */
+# define HAVE_POSIX_SIGNALS
+# if !defined (O_NDELAY)
+# define O_NDELAY O_NONBLOCK /* Posix-style non-blocking i/o */
+# endif /* O_NDELAY */
+#endif /* _POSIX_VERSION */
+
+/* System V.3 machines have the old 4.1 BSD `reliable' signal interface. */
+#if !defined (HAVE_BSD_SIGNALS) && !defined (HAVE_POSIX_SIGNALS)
+# if defined (USGr3)
+# if !defined (HAVE_USG_SIGHOLD)
+# define HAVE_USG_SIGHOLD
+# endif /* !HAVE_USG_SIGHOLD */
+# endif /* USGr3 */
+#endif /* !HAVE_BSD_SIGNALS && !HAVE_POSIX_SIGNALS */
+
+/* Other (BSD) machines use sgtty. */
+#if defined (NEW_TTY_DRIVER)
+# include <sgtty.h>
+#endif
+
+/* Define _POSIX_VDISABLE if we are not using the `new' tty driver and
+ it is not already defined. It is used both to determine if a
+ special character is disabled and to disable certain special
+ characters. Posix systems should set to 0, USG systems to -1. */
+#if !defined (NEW_TTY_DRIVER) && !defined (_POSIX_VDISABLE)
+# if defined (_POSIX_VERSION)
+# define _POSIX_VDISABLE 0
+# else /* !_POSIX_VERSION */
+# define _POSIX_VDISABLE -1
+# endif /* !_POSIX_VERSION */
+#endif /* !NEW_TTY_DRIVER && !_POSIX_VDISABLE */
+
+#if 1
+# define D_NAMLEN(d) strlen ((d)->d_name)
+#else /* !1 */
+
+#if !defined (SHELL) && (defined (_POSIX_VERSION) || defined (USGr3))
+# if !defined (HAVE_DIRENT_H)
+# define HAVE_DIRENT_H
+# endif /* !HAVE_DIRENT_H */
+#endif /* !SHELL && (_POSIX_VERSION || USGr3) */
+
+#if defined (HAVE_DIRENT_H)
+# include <dirent.h>
+# if !defined (direct)
+# define direct dirent
+# endif /* !direct */
+# define D_NAMLEN(d) strlen ((d)->d_name)
+#else /* !HAVE_DIRENT_H */
+# define D_NAMLEN(d) ((d)->d_namlen)
+# if defined (USG)
+# if defined (Xenix)
+# include <sys/ndir.h>
+# else /* !Xenix (but USG...) */
+# include "ndir.h"
+# endif /* !Xenix */
+# else /* !USG */
+# include <sys/dir.h>
+# endif /* !USG */
+#endif /* !HAVE_DIRENT_H */
+#endif /* !1 */
+
+#if defined (USG) && defined (TIOCGWINSZ) && !defined (Linux)
+# include <sys/stream.h>
+# if defined (HAVE_SYS_PTEM_H)
+# include <sys/ptem.h>
+# endif /* HAVE_SYS_PTEM_H */
+# if defined (HAVE_SYS_PTE_H)
+# include <sys/pte.h>
+# endif /* HAVE_SYS_PTE_H */
+#endif /* USG && TIOCGWINSZ && !Linux */
+
+/* Posix macro to check file in statbuf for directory-ness.
+ This requires that <sys/stat.h> be included before this test. */
+#if defined (S_IFDIR) && !defined (S_ISDIR)
+#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
+#endif
+
+/* Decide which flavor of the header file describing the C library
+ string functions to include and include it. */
+
+#if defined (USG) || defined (NeXT)
+# if !defined (HAVE_STRING_H)
+# define HAVE_STRING_H
+# endif /* !HAVE_STRING_H */
+#endif /* USG || NeXT */
+
+#if defined (HAVE_STRING_H)
+# include <string.h>
+#else /* !HAVE_STRING_H */
+# include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+#if !defined (strchr) && !defined (__STDC__)
+extern char *strchr (), *strrchr ();
+#endif /* !strchr && !__STDC__ */
+
+#if defined (HAVE_VARARGS_H)
+# include <varargs.h>
+#endif /* HAVE_VARARGS_H */
+
+/* This definition is needed by readline.c, rltty.c, and signals.c. */
+/* If on, then readline handles signals in a way that doesn't screw. */
+#define HANDLE_SIGNALS
+
+#if !defined (emacs_mode)
+# define no_mode -1
+# define vi_mode 0
+# define emacs_mode 1
+#endif
+
+/* Define some macros for dealing with assorted signalling disciplines.
+
+ These macros provide a way to use signal blocking and disabling
+ without smothering your code in a pile of #ifdef's.
+
+ SIGNALS_UNBLOCK; Stop blocking all signals.
+
+ {
+ SIGNALS_DECLARE_SAVED (name); Declare a variable to save the
+ signal blocking state.
+ ...
+ SIGNALS_BLOCK (SIGSTOP, name); Block a signal, and save the previous
+ state for restoration later.
+ ...
+ SIGNALS_RESTORE (name); Restore previous signals.
+ }
+
+*/
+
+#ifdef HAVE_POSIX_SIGNALS
+ /* POSIX signals */
+
+#define SIGNALS_UNBLOCK \
+ do { sigset_t set; \
+ sigemptyset (&set); \
+ sigprocmask (SIG_SETMASK, &set, (sigset_t *)NULL); \
+ } while (0)
+
+#define SIGNALS_DECLARE_SAVED(name) sigset_t name
+
+#define SIGNALS_BLOCK(SIG, saved) \
+ do { sigset_t set; \
+ sigemptyset (&set); \
+ sigaddset (&set, SIG); \
+ sigprocmask (SIG_BLOCK, &set, &saved); \
+ } while (0)
+
+#define SIGNALS_RESTORE(saved) \
+ sigprocmask (SIG_SETMASK, &saved, (sigset_t *)NULL)
+
+
+#else /* HAVE_POSIX_SIGNALS */
+#ifdef HAVE_BSD_SIGNALS
+ /* BSD signals */
+
+#define SIGNALS_UNBLOCK sigsetmask (0)
+#define SIGNALS_DECLARE_SAVED(name) int name
+#define SIGNALS_BLOCK(SIG, saved) saved = sigblock (sigmask (SIG))
+#define SIGNALS_RESTORE(saved) sigsetmask (saved)
+
+
+#else /* HAVE_BSD_SIGNALS */
+ /* None of the Above */
+
+#define SIGNALS_UNBLOCK /* nothing */
+#define SIGNALS_DECLARE_SAVED(name) /* nothing */
+#define SIGNALS_BLOCK(SIG, saved) /* nothing */
+#define SIGNALS_RESTORE(saved) /* nothing */
+
+
+#endif /* HAVE_BSD_SIGNALS */
+#endif /* HAVE_POSIX_SIGNALS */
+
+/* End of signal handling definitions. */
+#endif /* !_RLDEFS_H */
--- /dev/null
+/* search.c - code for non-incremental searching in emacs and vi modes. */
+
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+
+ This file is part of the Readline Library (the Library), a set of
+ routines for providing Emacs style line input to programs that ask
+ for it.
+
+ The Library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 1, or (at your option)
+ any later version.
+
+ The Library is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+
+#if defined (__GNUC__)
+# define alloca __builtin_alloca
+#else
+# if defined (sparc) || defined (HAVE_ALLOCA_H)
+# include <alloca.h>
+# endif
+#endif
+
+#include "readline.h"
+#include "history.h"
+
+extern char *xmalloc (), *xrealloc ();
+
+/* Variables imported from readline.c */
+extern int rl_point, rl_end, rl_line_buffer_len;
+extern Keymap _rl_keymap;
+extern char *rl_prompt;
+extern char *rl_line_buffer;
+extern HIST_ENTRY *saved_line_for_history;
+
+static char *noninc_search_string = (char *) NULL;
+static int noninc_history_pos = 0;
+
+/* Search the history list for STRING starting at absolute history position
+ POS. If STRING begins with `^', the search must match STRING at the
+ beginning of a history line, otherwise a full substring match is performed
+ for STRING. DIR < 0 means to search backwards through the history list,
+ DIR >= 0 means to search forward. */
+static int
+noninc_search_from_pos (string, pos, dir)
+ char *string;
+ int pos, dir;
+{
+ int ret, old;
+
+ old = where_history ();
+ history_set_pos (pos);
+
+ if (*string == '^')
+ ret = history_search_prefix (string + 1, dir);
+ else
+ ret = history_search (string, dir);
+
+ if (ret != -1)
+ ret = where_history ();
+
+ history_set_pos (old);
+ return (ret);
+}
+
+/* Search for a line in the history containing STRING. If DIR is < 0, the
+ search is backwards through previous entries, else through subsequent
+ entries. */
+static void
+noninc_dosearch (string, dir)
+ char *string;
+ int dir;
+{
+ int oldpos, pos;
+ HIST_ENTRY *entry;
+
+ if (string == 0 || *string == 0 || noninc_history_pos < 0)
+ {
+ ding ();
+ return;
+ }
+
+ pos = noninc_search_from_pos (string, noninc_history_pos + dir, dir);
+ if (pos == -1)
+ {
+ /* Search failed, current history position unchanged. */
+ maybe_unsave_line ();
+ rl_clear_message ();
+ rl_point = 0;
+ ding ();
+ return;
+ }
+
+ noninc_history_pos = pos;
+
+ oldpos = where_history ();
+ history_set_pos (noninc_history_pos);
+ entry = current_history ();
+ history_set_pos (oldpos);
+
+ {
+ int line_len;
+
+ line_len = strlen (entry->line);
+ if (line_len >= rl_line_buffer_len)
+ rl_extend_line_buffer (line_len);
+ strcpy (rl_line_buffer, entry->line);
+ }
+
+ rl_undo_list = (UNDO_LIST *)entry->data;
+ rl_end = strlen (rl_line_buffer);
+ rl_point = 0;
+ rl_clear_message ();
+
+ if (saved_line_for_history)
+ free_history_entry (saved_line_for_history);
+ saved_line_for_history = (HIST_ENTRY *)NULL;
+}
+
+/* Search non-interactively through the history list. DIR < 0 means to
+ search backwards through the history of previous commands; otherwise
+ the search is for commands subsequent to the current position in the
+ history list. PCHAR is the character to use for prompting when reading
+ the search string; if not specified (0), it defaults to `:'. */
+static void
+noninc_search (dir, pchar)
+ int dir;
+ int pchar;
+{
+ int saved_point, c, pmtlen;
+ char *p;
+
+ maybe_save_line ();
+ saved_point = rl_point;
+
+ /* Use the line buffer to read the search string. */
+ rl_line_buffer[0] = 0;
+ rl_end = rl_point = 0;
+
+ pmtlen = (rl_prompt && *rl_prompt) ? strlen (rl_prompt) : 0;
+ p = (char *)alloca (2 + pmtlen);
+ if (pmtlen)
+ strcpy (p, rl_prompt);
+ p[pmtlen] = pchar ? pchar : ':';
+ p[pmtlen + 1] = '\0';
+
+ rl_message (p, 0, 0);
+
+ /* Read the search string. */
+ while (c = rl_read_key ())
+ {
+ switch (c)
+ {
+ case CTRL('H'):
+ case RUBOUT:
+ if (rl_point == 0)
+ {
+ maybe_unsave_line ();
+ rl_clear_message ();
+ rl_point = saved_point;
+ return;
+ }
+ /* FALLTHROUGH */
+
+ case CTRL('W'):
+ case CTRL('U'):
+ rl_dispatch (c, _rl_keymap);
+ break;
+
+ case RETURN:
+ case NEWLINE:
+ goto dosearch;
+ /* NOTREACHED */
+ break;
+
+ case CTRL('C'):
+ case CTRL('G'):
+ maybe_unsave_line ();
+ rl_clear_message ();
+ rl_point = saved_point;
+ ding ();
+ return;
+
+ default:
+ rl_insert (1, c);
+ break;
+ }
+ rl_redisplay ();
+ }
+
+ dosearch:
+ /* If rl_point == 0, we want to re-use the previous search string and
+ start from the saved history position. If there's no previous search
+ string, punt. */
+ if (rl_point == 0)
+ {
+ if (!noninc_search_string)
+ {
+ ding ();
+ return;
+ }
+ }
+ else
+ {
+ /* We want to start the search from the current history position. */
+ noninc_history_pos = where_history ();
+ if (noninc_search_string)
+ free (noninc_search_string);
+ noninc_search_string = savestring (rl_line_buffer);
+ }
+
+ noninc_dosearch (noninc_search_string, dir);
+}
+
+/* Search forward through the history list for a string. If the vi-mode
+ code calls this, KEY will be `?'. */
+rl_noninc_forward_search (count, key)
+ int count, key;
+{
+ if (key == '?')
+ noninc_search (1, '?');
+ else
+ noninc_search (1, 0);
+}
+
+/* Reverse search the history list for a string. If the vi-mode code
+ calls this, KEY will be `/'. */
+rl_noninc_reverse_search (count, key)
+ int count, key;
+{
+ if (key == '/')
+ noninc_search (-1, '/');
+ else
+ noninc_search (-1, 0);
+}
+
+/* Search forward through the history list for the last string searched
+ for. If there is no saved search string, abort. */
+rl_noninc_forward_search_again (count, key)
+ int count, key;
+{
+ if (!noninc_search_string)
+ {
+ ding ();
+ return (-1);
+ }
+ noninc_dosearch (noninc_search_string, 1);
+}
+
+/* Reverse search in the history list for the last string searched
+ for. If there is no saved search string, abort. */
+rl_noninc_reverse_search_again (count, key)
+ int count, key;
+{
+ if (!noninc_search_string)
+ {
+ ding ();
+ return (-1);
+ }
+ noninc_dosearch (noninc_search_string, -1);
+}
--- /dev/null
+/* tilde.c -- Tilde expansion code (~/foo := $HOME/foo). */
+
+/* Copyright (C) 1988,1989 Free Software Foundation, Inc.
+
+ This file is part of GNU Readline, a library for reading lines
+ of text with interactive input and history editing.
+
+ Readline is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 1, or (at your option) any
+ later version.
+
+ Readline is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Readline; see the file COPYING. If not, write to the Free
+ Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if defined (__GNUC__)
+# undef alloca
+# define alloca __builtin_alloca
+#else /* !__GNUC__ */
+# if defined (_AIX)
+ #pragma alloca
+# else /* !_AIX */
+# if defined (HAVE_ALLOCA_H)
+# include <alloca.h>
+# endif /* HAVE_ALLOCA_H */
+# endif /* !AIX */
+#endif /* !__GNUC__ */
+
+#if defined (HAVE_STRING_H)
+# include <string.h>
+#else /* !HAVE_STRING_H */
+# include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+#if defined (HAVE_STDLIB_H)
+# include <stdlib.h>
+#else
+# include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <tilde/tilde.h>
+#include <pwd.h>
+
+#if !defined (sgi) && !defined (isc386)
+extern struct passwd *getpwnam (), *getpwuid ();
+#endif /* !sgi */
+
+#if !defined (savestring)
+extern char *xmalloc ();
+# ifndef strcpy
+extern char *strcpy ();
+# endif
+#define savestring(x) strcpy (xmalloc (1 + strlen (x)), (x))
+#endif /* !savestring */
+
+#if !defined (NULL)
+# if defined (__STDC__)
+# define NULL ((void *) 0)
+# else
+# define NULL 0x0
+# endif /* !__STDC__ */
+#endif /* !NULL */
+
+#if defined (TEST) || defined (STATIC_MALLOC)
+static char *xmalloc (), *xrealloc ();
+#else
+extern char *xmalloc (), *xrealloc ();
+#endif /* TEST || STATIC_MALLOC */
+
+/* The default value of tilde_additional_prefixes. This is set to
+ whitespace preceding a tilde so that simple programs which do not
+ perform any word separation get desired behaviour. */
+static char *default_prefixes[] =
+ { " ~", "\t~", (char *)NULL };
+
+/* The default value of tilde_additional_suffixes. This is set to
+ whitespace or newline so that simple programs which do not
+ perform any word separation get desired behaviour. */
+static char *default_suffixes[] =
+ { " ", "\n", (char *)NULL };
+
+/* If non-null, this contains the address of a function to call if the
+ standard meaning for expanding a tilde fails. The function is called
+ with the text (sans tilde, as in "foo"), and returns a malloc()'ed string
+ which is the expansion, or a NULL pointer if there is no expansion. */
+Function *tilde_expansion_failure_hook = (Function *)NULL;
+
+/* When non-null, this is a NULL terminated array of strings which
+ are duplicates for a tilde prefix. Bash uses this to expand
+ `=~' and `:~'. */
+char **tilde_additional_prefixes = default_prefixes;
+
+/* When non-null, this is a NULL terminated array of strings which match
+ the end of a username, instead of just "/". Bash sets this to
+ `:' and `=~'. */
+char **tilde_additional_suffixes = default_suffixes;
+
+/* Find the start of a tilde expansion in STRING, and return the index of
+ the tilde which starts the expansion. Place the length of the text
+ which identified this tilde starter in LEN, excluding the tilde itself. */
+static int
+tilde_find_prefix (string, len)
+ char *string;
+ int *len;
+{
+ register int i, j, string_len;
+ register char **prefixes = tilde_additional_prefixes;
+
+ string_len = strlen (string);
+ *len = 0;
+
+ if (!*string || *string == '~')
+ return (0);
+
+ if (prefixes)
+ {
+ for (i = 0; i < string_len; i++)
+ {
+ for (j = 0; prefixes[j]; j++)
+ {
+ if (strncmp (string + i, prefixes[j], strlen (prefixes[j])) == 0)
+ {
+ *len = strlen (prefixes[j]) - 1;
+ return (i + *len);
+ }
+ }
+ }
+ }
+ return (string_len);
+}
+
+/* Find the end of a tilde expansion in STRING, and return the index of
+ the character which ends the tilde definition. */
+static int
+tilde_find_suffix (string)
+ char *string;
+{
+ register int i, j, string_len;
+ register char **suffixes = tilde_additional_suffixes;
+
+ string_len = strlen (string);
+
+ for (i = 0; i < string_len; i++)
+ {
+ if (string[i] == '/' || !string[i])
+ break;
+
+ for (j = 0; suffixes && suffixes[j]; j++)
+ {
+ if (strncmp (string + i, suffixes[j], strlen (suffixes[j])) == 0)
+ return (i);
+ }
+ }
+ return (i);
+}
+
+/* Return a new string which is the result of tilde expanding STRING. */
+char *
+tilde_expand (string)
+ char *string;
+{
+ char *result, *tilde_expand_word ();
+ int result_size, result_index;
+
+ result_size = result_index = 0;
+ result = (char *)NULL;
+
+ /* Scan through STRING expanding tildes as we come to them. */
+ while (1)
+ {
+ register int start, end;
+ char *tilde_word, *expansion;
+ int len;
+
+ /* Make START point to the tilde which starts the expansion. */
+ start = tilde_find_prefix (string, &len);
+
+ /* Copy the skipped text into the result. */
+ if ((result_index + start + 1) > result_size)
+ result = (char *)xrealloc (result, 1 + (result_size += (start + 20)));
+
+ strncpy (result + result_index, string, start);
+ result_index += start;
+
+ /* Advance STRING to the starting tilde. */
+ string += start;
+
+ /* Make END be the index of one after the last character of the
+ username. */
+ end = tilde_find_suffix (string);
+
+ /* If both START and END are zero, we are all done. */
+ if (!start && !end)
+ break;
+
+ /* Expand the entire tilde word, and copy it into RESULT. */
+ tilde_word = (char *)xmalloc (1 + end);
+ strncpy (tilde_word, string, end);
+ tilde_word[end] = '\0';
+ string += end;
+
+ expansion = tilde_expand_word (tilde_word);
+ free (tilde_word);
+
+ len = strlen (expansion);
+ if ((result_index + len + 1) > result_size)
+ result = (char *)xrealloc (result, 1 + (result_size += (len + 20)));
+
+ strcpy (result + result_index, expansion);
+ result_index += len;
+ free (expansion);
+ }
+
+ result[result_index] = '\0';
+
+ return (result);
+}
+
+/* Do the work of tilde expansion on FILENAME. FILENAME starts with a
+ tilde. If there is no expansion, call tilde_expansion_failure_hook. */
+char *
+tilde_expand_word (filename)
+ char *filename;
+{
+ char *dirname;
+
+ dirname = filename ? savestring (filename) : (char *)NULL;
+
+ if (dirname && *dirname == '~')
+ {
+ char *temp_name;
+ if (!dirname[1] || dirname[1] == '/')
+ {
+ /* Prepend $HOME to the rest of the string. */
+ char *temp_home = (char *)getenv ("HOME");
+
+ /* If there is no HOME variable, look up the directory in
+ the password database. */
+ if (!temp_home)
+ {
+ struct passwd *entry;
+
+ entry = getpwuid (getuid ());
+ if (entry)
+ temp_home = entry->pw_dir;
+ }
+
+ temp_name = (char *)alloca (1 + strlen (&dirname[1])
+ + (temp_home ? strlen (temp_home) : 0));
+ temp_name[0] = '\0';
+ if (temp_home)
+ strcpy (temp_name, temp_home);
+ strcat (temp_name, &dirname[1]);
+ free (dirname);
+ dirname = savestring (temp_name);
+ }
+ else
+ {
+ struct passwd *user_entry;
+ char *username = (char *)alloca (257);
+ int i, c;
+
+ for (i = 1; c = dirname[i]; i++)
+ {
+ if (c == '/')
+ break;
+ else
+ username[i - 1] = c;
+ }
+ username[i - 1] = '\0';
+
+ if (!(user_entry = getpwnam (username)))
+ {
+ /* If the calling program has a special syntax for
+ expanding tildes, and we couldn't find a standard
+ expansion, then let them try. */
+ if (tilde_expansion_failure_hook)
+ {
+ char *expansion;
+
+ expansion =
+ (char *)(*tilde_expansion_failure_hook) (username);
+
+ if (expansion)
+ {
+ temp_name = (char *)alloca (1 + strlen (expansion)
+ + strlen (&dirname[i]));
+ strcpy (temp_name, expansion);
+ strcat (temp_name, &dirname[i]);
+ free (expansion);
+ goto return_name;
+ }
+ }
+ /* We shouldn't report errors. */
+ }
+ else
+ {
+ temp_name = (char *)alloca (1 + strlen (user_entry->pw_dir)
+ + strlen (&dirname[i]));
+ strcpy (temp_name, user_entry->pw_dir);
+ strcat (temp_name, &dirname[i]);
+ return_name:
+ free (dirname);
+ dirname = savestring (temp_name);
+ }
+ endpwent ();
+ }
+ }
+ return (dirname);
+}
+
+\f
+#if defined (TEST)
+#undef NULL
+#include <stdio.h>
+
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ char *result, line[512];
+ int done = 0;
+
+ while (!done)
+ {
+ printf ("~expand: ");
+ fflush (stdout);
+
+ if (!gets (line))
+ strcpy (line, "done");
+
+ if ((strcmp (line, "done") == 0) ||
+ (strcmp (line, "quit") == 0) ||
+ (strcmp (line, "exit") == 0))
+ {
+ done = 1;
+ break;
+ }
+
+ result = tilde_expand (line);
+ printf (" --> %s\n", result);
+ free (result);
+ }
+ exit (0);
+}
+
+static void memory_error_and_abort ();
+
+static char *
+xmalloc (bytes)
+ int bytes;
+{
+ char *temp = (char *)malloc (bytes);
+
+ if (!temp)
+ memory_error_and_abort ();
+ return (temp);
+}
+
+static char *
+xrealloc (pointer, bytes)
+ char *pointer;
+ int bytes;
+{
+ char *temp;
+
+ if (!pointer)
+ temp = (char *)malloc (bytes);
+ else
+ temp = (char *)realloc (pointer, bytes);
+
+ if (!temp)
+ memory_error_and_abort ();
+
+ return (temp);
+}
+
+static void
+memory_error_and_abort ()
+{
+ fprintf (stderr, "readline: Out of virtual memory!\n");
+ abort ();
+}
+
+/*
+ * Local variables:
+ * compile-command: "gcc -g -DTEST -o tilde tilde.c"
+ * end:
+ */
+#endif /* TEST */
--- /dev/null
+/* tilde.h: Externally available variables and function in libtilde.a. */
+
+/* Function pointers can be declared as (Function *)foo. */
+#if !defined (__FUNCTION_DEF)
+# define __FUNCTION_DEF
+typedef int Function ();
+typedef void VFunction ();
+typedef char *CPFunction ();
+typedef char **CPPFunction ();
+#endif /* _FUNCTION_DEF */
+
+/* If non-null, this contains the address of a function to call if the
+ standard meaning for expanding a tilde fails. The function is called
+ with the text (sans tilde, as in "foo"), and returns a malloc()'ed string
+ which is the expansion, or a NULL pointer if there is no expansion. */
+extern Function *tilde_expansion_failure_hook;
+
+/* When non-null, this is a NULL terminated array of strings which
+ are duplicates for a tilde prefix. Bash uses this to expand
+ `=~' and `:~'. */
+extern char **tilde_additional_prefixes;
+
+/* When non-null, this is a NULL terminated array of strings which match
+ the end of a username, instead of just "/". Bash sets this to
+ `:' and `=~'. */
+extern char **tilde_additional_suffixes;
+
+/* Return a new string which is the result of tilde expanding STRING. */
+extern char *tilde_expand ();
+
+/* Do the work of tilde expansion on FILENAME. FILENAME starts with a
+ tilde. If there is no expansion, call tilde_expansion_failure_hook. */
+extern char *tilde_expand_word ();
--- /dev/null
+/* xmalloc.c -- safe versions of malloc and realloc */
+
+/* Copyright (C) 1991 Free Software Foundation, Inc.
+
+ This file is part of GNU Readline, a library for reading lines
+ of text with interactive input and history editing.
+
+ Readline is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 1, or (at your option) any
+ later version.
+
+ Readline is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Readline; see the file COPYING. If not, write to the Free
+ Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if defined (ALREADY_HAVE_XMALLOC)
+#else
+#include <stdio.h>
+
+#if defined (HAVE_STDLIB_H)
+# include <stdlib.h>
+#endif /* HAVE_STDLIB_H */
+
+static void memory_error_and_abort ();
+
+/* **************************************************************** */
+/* */
+/* Memory Allocation and Deallocation. */
+/* */
+/* **************************************************************** */
+
+/* Return a pointer to free()able block of memory large enough
+ to hold BYTES number of bytes. If the memory cannot be allocated,
+ print an error message and abort. */
+char *
+xmalloc (bytes)
+ int bytes;
+{
+ char *temp = (char *)malloc (bytes);
+
+ if (!temp)
+ memory_error_and_abort ("xmalloc");
+ return (temp);
+}
+
+char *
+xrealloc (pointer, bytes)
+ char *pointer;
+ int bytes;
+{
+ char *temp;
+
+ if (!pointer)
+ temp = (char *)malloc (bytes);
+ else
+ temp = (char *)realloc (pointer, bytes);
+
+ if (!temp)
+ memory_error_and_abort ("xrealloc");
+ return (temp);
+}
+
+static void
+memory_error_and_abort (fname)
+ char *fname;
+{
+ fprintf (stderr, "%s: Out of virtual memory!\n", fname);
+ abort ();
+}
+#endif /* !ALREADY_HAVE_XMALLOC */
projects / deliverable / binutils-gdb.git / commitdiff
