/* readline.c -- a general facility for reading lines of input
with emacs style editing and completion. */
-/* Copyright 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
+/* 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.
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. */
+#define READLINE_LIBRARY
-#include "sysdep.h"
-#include <stdio.h>
-#include <fcntl.h>
-#ifndef NO_SYS_FILE
-#include <sys/file.h>
+#if defined (HAVE_CONFIG_H)
+# include <config.h>
#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 */
+#include <sys/types.h>
+#include "posixstat.h"
+#include <fcntl.h>
+#if defined (HAVE_SYS_FILE_H)
+# include <sys/file.h>
+#endif /* HAVE_SYS_FILE_H */
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
-#endif
-\f
-#include <errno.h>
-/* Not all systems declare ERRNO in errno.h... and some systems #define it! */
-#if !defined (errno)
-extern int errno;
-#endif /* !errno */
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+# include <stdlib.h>
+#else
+# include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
-extern char * getenv ();
+#if defined (HAVE_LOCALE_H)
+# include <locale.h>
+#endif
-#include <setjmp.h>
-#include <sys/stat.h>
+#include <signal.h>
+#include <stdio.h>
+#include "posixjmp.h"
/* System-specific feature definitions and include files. */
#include "rldefs.h"
+#if defined (__EMX__)
+# define INCL_DOSPROCESS
+# include <os2.h>
+#endif /* __EMX__ */
+
/* Some standard library routines. */
#include "readline.h"
#include "history.h"
+#ifndef RL_LIBRARY_VERSION
+# define RL_LIBRARY_VERSION "4.0"
+#endif
+
+/* Evaluates its arguments multiple times. */
+#define SWAP(s, e) do { int t; t = s; s = e; e = t; } while (0)
+
/* 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. */
-/* Functions imported from other files in the library. */
-extern char *tgetstr ();
+/* Variables and functions imported from terminal.c */
+extern int _rl_init_terminal_io ();
+extern void _rl_enable_meta_key ();
+#ifdef _MINIX
+extern void _rl_output_character_function ();
+#else
+extern int _rl_output_character_function ();
+#endif
+
+extern int _rl_enable_meta;
+extern int _rl_term_autowrap;
+extern int screenwidth, screenheight, screenchars;
+
+/* Variables and functions imported from rltty.c. */
extern void rl_prep_terminal (), rl_deprep_terminal ();
-extern void rl_vi_set_last ();
-extern Function *rl_function_of_keyseq ();
-extern char *tilde_expand ();
+extern void rltty_set_default_bindings ();
+
+/* Functions imported from util.c. */
+extern void _rl_abort_internal ();
+extern void rl_extend_line_buffer ();
+extern int alphabetic ();
+
+/* Functions imported from bind.c. */
+extern void _rl_bind_if_unbound ();
+
+/* Functions imported from input.c. */
+extern int _rl_any_typein ();
+extern void _rl_insert_typein ();
+extern int rl_read_key ();
+
+/* Functions imported from nls.c */
+extern int _rl_init_eightbit ();
+
+/* Functions imported from shell.c */
+extern char *get_env_value ();
/* External redisplay functions and variables from display.c */
-extern void rl_redisplay ();
extern void _rl_move_vert ();
+extern void _rl_update_final ();
+extern void _rl_clear_to_eol ();
+extern void _rl_clear_screen ();
+extern void _rl_erase_entire_line ();
extern void _rl_erase_at_end_of_line ();
extern void _rl_move_cursor_relative ();
extern int _rl_vis_botlin;
extern int _rl_last_c_pos;
+extern int _rl_horizontal_scroll_mode;
extern int rl_display_fixed;
+extern int _rl_suppress_redisplay;
+extern char *rl_display_prompt;
/* 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;
+/* Variables and functions from macro.c. */
+extern void _rl_add_macro_char ();
+extern void _rl_with_macro_input ();
+extern int _rl_next_macro_key ();
+extern int _rl_defining_kbd_macro;
+
+#if defined (VI_MODE)
+/* Functions imported from vi_mode.c. */
+extern void _rl_vi_set_last ();
+extern void _rl_vi_reset_last ();
+extern void _rl_vi_done_inserting ();
+extern int _rl_vi_textmod_command ();
+extern void _rl_vi_initialize_line ();
+#endif /* VI_MODE */
+
+extern UNDO_LIST *rl_undo_list;
+extern int _rl_doing_an_undo;
+
/* Forward declarations used in this file. */
-void rl_dispatch ();
-void free_history_entry ();
-int _rl_output_character_function ();
-void _rl_set_screen_size ();
-void free_undo_list (), rl_add_undo ();
+void _rl_free_history_entry ();
+
+int _rl_dispatch ();
+int _rl_init_argument ();
-#if !defined (__GO32__)
+static char *readline_internal ();
+static void readline_initialize_everything ();
+static void start_using_history ();
+static void bind_arrow_keys ();
+
+#if !defined (__GO32__) || defined (HAVE_TERMIOS_H)
static void readline_default_bindings ();
#endif /* !__GO32__ */
#if defined (__GO32__)
-# include <sys/pc.h>
-# undef HANDLE_SIGNALS
+# include <go32.h>
+# include <pc.h>
+# if !defined (__DJGPP__)
+# undef HANDLE_SIGNALS
+# endif /* !__DJGPP__ */
#endif /* __GO32__ */
-#if defined (STATIC_MALLOC)
-static char *xmalloc (), *xrealloc ();
-#else
extern char *xmalloc (), *xrealloc ();
-#endif /* STATIC_MALLOC */
-\f
/* **************************************************************** */
/* */
/* Line editing input utility */
/* */
/* **************************************************************** */
-static char *LibraryVersion = "2.0 (Cygnus)";
+char *rl_library_version = RL_LIBRARY_VERSION;
/* A pointer to the keymap that is currently in use.
By default, it is the standard emacs keymap. */
/* The current style of editing. */
int rl_editing_mode = emacs_mode;
+/* Non-zero if we called this function from _rl_dispatch(). It's present
+ so functions can find out whether they were called from a key binding
+ or directly from an application. */
+int rl_dispatching;
+
/* Non-zero if the previous command was a kill command. */
-static int last_command_was_kill = 0;
+int _rl_last_command_was_kill = 0;
/* The current value of the numeric argument specified by the user. */
int rl_numeric_arg = 1;
int rl_arg_sign = 1;
/* Non-zero means we have been called at least once before. */
-static int rl_initialized = 0;
+static int rl_initialized;
/* If non-zero, this program is running in an EMACS buffer. */
-static char *running_in_emacs = (char *)NULL;
+static int running_in_emacs;
/* The current offset in the current input line. */
int rl_point;
Function *rl_last_func = (Function *)NULL;
/* Top level environment for readline_internal (). */
-static jmp_buf readline_top_level;
+procenv_t readline_top_level;
/* The streams we interact with. */
-static FILE *in_stream, *out_stream;
+FILE *_rl_in_stream, *_rl_out_stream;
/* The names of the streams that we do input and output to. */
FILE *rl_instream = (FILE *)NULL;
/* Current prompt. */
char *rl_prompt;
+int rl_visible_prompt_length = 0;
/* The number of characters read in order to type this complete command. */
int rl_key_sequence_length = 0;
/* If non-zero, then this is the address of a function to call just
- before readline_internal () prints the first prompt. */
+ before readline_internal_setup () prints the first prompt. */
Function *rl_startup_hook = (Function *)NULL;
+/* If non-zero, this is the address of a function to call just before
+ readline_internal_setup () returns and readline_internal starts
+ reading input characters. */
+Function *rl_pre_input_hook = (Function *)NULL;
+
/* What we use internally. You should always refer to RL_LINE_BUFFER. */
static char *the_line;
/* 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;
+
+/* The style of `bell' notification preferred. This can be set to NO_BELL,
+ AUDIBLE_BELL, or VISIBLE_BELL. */
+int _rl_bell_preference = AUDIBLE_BELL;
+/* String inserted into the line by rl_insert_comment (). */
+char *_rl_comment_begin;
+
+/* Keymap holding the function currently being executed. */
+Keymap rl_executing_keymap;
+
+/* Non-zero means to erase entire line, including prompt, on empty input lines. */
+int rl_erase_empty_line = 0;
+
/* Line buffer and maintenence. */
char *rl_line_buffer = (char *)NULL;
int rl_line_buffer_len = 0;
-#define DEFAULT_BUFFER_SIZE 256
-\f
+/* Forward declarations used by the display and termcap code. */
+
/* **************************************************************** */
/* */
/* `Forward' declarations */
parser directives. */
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;
-/* Non-zero tells rl_delete_text and rl_insert_text to not add to
- the undo list. */
-static int doing_an_undo = 0;
-\f
+/* Non-zero means to output characters with the meta bit set directly
+ rather than as a meta-prefixed escape sequence. */
+int _rl_output_meta_chars = 0;
+
/* **************************************************************** */
/* */
/* Top Level Functions */
/* 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
+/* Read a line of input. Prompt with PROMPT. An empty PROMPT means
none. A return value of NULL means that EOF was encountered. */
char *
readline (prompt)
char *prompt;
{
- char *readline_internal ();
char *value;
rl_prompt = prompt;
return ((char *)NULL);
}
+ rl_visible_prompt_length = rl_expand_prompt (rl_prompt);
+
rl_initialize ();
- rl_prep_terminal (_rl_meta_flag);
+ (*rl_prep_term_function) (_rl_meta_flag);
#if defined (HANDLE_SIGNALS)
rl_set_signals ();
#endif
value = readline_internal ();
- rl_deprep_terminal ();
+ (*rl_deprep_term_function) ();
#if defined (HANDLE_SIGNALS)
rl_clear_signals ();
return (value);
}
-/* Read a line of input from the global rl_instream, doing output on
- the global rl_outstream.
- If rl_prompt is non-null, then that is our prompt. */
-char *
-readline_internal ()
-{
- int lastc, c, eof_found;
-
- in_stream = rl_instream;
- out_stream = rl_outstream;
+#if defined (READLINE_CALLBACKS)
+# define STATIC_CALLBACK
+#else
+# define STATIC_CALLBACK static
+#endif
- lastc = -1;
- eof_found = 0;
+STATIC_CALLBACK void
+readline_internal_setup ()
+{
+ _rl_in_stream = rl_instream;
+ _rl_out_stream = rl_outstream;
if (rl_startup_hook)
(*rl_startup_hook) ();
- if (!readline_echoing_p)
+ if (readline_echoing_p == 0)
{
if (rl_prompt)
{
- fprintf (out_stream, "%s", rl_prompt);
- fflush (out_stream);
+ fprintf (_rl_out_stream, "%s", rl_prompt);
+ fflush (_rl_out_stream);
}
}
else
{
rl_on_new_line ();
- rl_redisplay ();
+ (*rl_redisplay_function) ();
#if defined (VI_MODE)
if (rl_editing_mode == vi_mode)
- rl_vi_insertion_mode ();
+ rl_vi_insertion_mode (1, 0);
#endif /* VI_MODE */
}
- while (!rl_done)
+ if (rl_pre_input_hook)
+ (*rl_pre_input_hook) ();
+}
+
+STATIC_CALLBACK char *
+readline_internal_teardown (eof)
+ int eof;
+{
+ char *temp;
+ HIST_ENTRY *entry;
+
+ /* Restore the original of this history line, iff the line that we
+ are editing was originally in the history, AND the line has changed. */
+ entry = current_history ();
+
+ if (entry && rl_undo_list)
+ {
+ temp = savestring (the_line);
+ rl_revert_line (1, 0);
+ entry = replace_history_entry (where_history (), the_line, (histdata_t)NULL);
+ _rl_free_history_entry (entry);
+
+ strcpy (the_line, temp);
+ free (temp);
+ }
+
+ /* At any rate, it is highly likely that this line has an undo list. Get
+ rid of it now. */
+ if (rl_undo_list)
+ free_undo_list ();
+
+ return (eof ? (char *)NULL : savestring (the_line));
+}
+
+STATIC_CALLBACK int
+#if defined (READLINE_CALLBACKS)
+readline_internal_char ()
+#else
+readline_internal_charloop ()
+#endif
+{
+ static int lastc, eof_found;
+ int c, code, lk;
+
+ lastc = -1;
+ eof_found = 0;
+
+#if !defined (READLINE_CALLBACKS)
+ while (rl_done == 0)
{
- int lk = last_command_was_kill;
- int code;
+#endif
+ lk = _rl_last_command_was_kill;
code = setjmp (readline_top_level);
if (code)
- rl_redisplay ();
+ (*rl_redisplay_function) ();
- if (!rl_pending_input)
+ if (rl_pending_input == 0)
{
/* Then initialize the argument and number of keys read. */
- rl_init_argument ();
+ _rl_init_argument ();
rl_key_sequence_length = 0;
}
previous character is interpreted as EOF. */
if (((c == _rl_eof_char && lastc != c) || c == EOF) && !rl_end)
{
+#if defined (READLINE_CALLBACKS)
+ return (rl_done = 1);
+#else
eof_found = 1;
break;
+#endif
}
lastc = c;
- rl_dispatch (c, _rl_keymap);
+ _rl_dispatch (c, _rl_keymap);
- /* If there was no change in last_command_was_kill, then no kill
+ /* If there was no change in _rl_last_command_was_kill, then no kill
has taken place. Note that if input is pending we are reading
a prefix command, so nothing has changed yet. */
- if (!rl_pending_input)
- {
- if (lk == last_command_was_kill)
- last_command_was_kill = 0;
- }
+ if (rl_pending_input == 0 && lk == _rl_last_command_was_kill)
+ _rl_last_command_was_kill = 0;
#if defined (VI_MODE)
/* In vi mode, when you exit insert mode, the cursor moves back
rl_vi_check ();
#endif /* VI_MODE */
- if (!rl_done)
- rl_redisplay ();
- }
-
- /* Restore the original of this history line, iff the line that we
- are editing was originally in the history, AND the line has changed. */
- {
- HIST_ENTRY *entry = current_history ();
-
- if (entry && rl_undo_list)
- {
- char *temp = savestring (the_line);
- rl_revert_line ();
- entry = replace_history_entry (where_history (), the_line,
- (HIST_ENTRY *)NULL);
- free_history_entry (entry);
-
- strcpy (the_line, temp);
- free (temp);
- }
- }
-
- /* At any rate, it is highly likely that this line has an undo list. Get
- rid of it now. */
- if (rl_undo_list)
- free_undo_list ();
-
- if (eof_found)
- return (char *)NULL;
- else
- return (savestring (the_line));
-}
-\f
-/* **************************************************************** */
-/* */
-/* Character Input Buffering */
-/* */
-/* **************************************************************** */
+ if (rl_done == 0)
+ (*rl_redisplay_function) ();
-static int pop_index = 0, push_index = 0, ibuffer_len = 511;
-static unsigned char ibuffer[512];
+ /* If the application writer has told us to erase the entire line if
+ the only character typed was something bound to rl_newline, do so. */
+ if (rl_erase_empty_line && rl_done && rl_last_func == rl_newline &&
+ rl_point == 0 && rl_end == 0)
+ _rl_erase_entire_line ();
-/* Non-null means it is a pointer to a function to run while waiting for
- character input. */
-Function *rl_event_hook = (Function *)NULL;
-
-#define any_typein (push_index != pop_index)
-
-/* Add KEY to the buffer of characters to be read. */
-rl_stuff_char (key)
- int key;
-{
- if (key == EOF)
- {
- key = NEWLINE;
- rl_pending_input = EOF;
+#if defined (READLINE_CALLBACKS)
+ return 0;
+#else
}
- ibuffer[push_index++] = key;
- if (push_index >= ibuffer_len)
- push_index = 0;
-}
-/* Return the amount of space available in the
- buffer for stuffing characters. */
-int
-ibuffer_space ()
-{
- if (pop_index > push_index)
- return (pop_index - push_index);
- else
- return (ibuffer_len - (push_index - pop_index));
+ return (eof_found);
+#endif
}
-/* Get a key from the buffer of characters to be read.
- Return the key in KEY.
- Result is KEY if there was a key, or 0 if there wasn't. */
-int
-rl_get_char (key)
- int *key;
+#if defined (READLINE_CALLBACKS)
+static int
+readline_internal_charloop ()
{
- if (push_index == pop_index)
- return (0);
-
- *key = ibuffer[pop_index++];
+ int eof = 1;
- if (pop_index >= ibuffer_len)
- pop_index = 0;
-
- return (1);
+ while (rl_done == 0)
+ eof = readline_internal_char ();
+ return (eof);
}
+#endif /* READLINE_CALLBACKS */
-/* Stuff KEY into the *front* of the input buffer.
- Returns non-zero if successful, zero if there is
- no space left in the buffer. */
-int
-rl_unget_char (key)
- int key;
+/* Read a line of input from the global rl_instream, doing output on
+ the global rl_outstream.
+ If rl_prompt is non-null, then that is our prompt. */
+static char *
+readline_internal ()
{
- if (ibuffer_space ())
- {
- pop_index--;
- if (pop_index < 0)
- pop_index = ibuffer_len - 1;
- ibuffer[pop_index] = key;
- return (1);
- }
- return (0);
+ int eof;
+
+ readline_internal_setup ();
+ eof = readline_internal_charloop ();
+ return (readline_internal_teardown (eof));
}
-/* If a character is available to be read, then read it
- and stuff it into IBUFFER. Otherwise, just return. */
void
-rl_gather_tyi ()
+_rl_init_line_state ()
{
-#if defined (__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 ());
-#else /* !__GO32__ */
-
- int tty = fileno (in_stream);
- register int tem, result = -1;
- int chars_avail;
- char input;
-
-#if defined (FIONREAD)
- result = ioctl (tty, FIONREAD, &chars_avail);
-#endif
-
-#if defined (O_NDELAY)
- if (result == -1)
- {
- int flags;
-
- flags = fcntl (tty, F_GETFL, 0);
-
- fcntl (tty, F_SETFL, (flags | O_NDELAY));
- chars_avail = read (tty, &input, 1);
-
- fcntl (tty, F_SETFL, flags);
- if (chars_avail == -1 && errno == EAGAIN)
- return;
- }
-#endif /* O_NDELAY */
-
- /* If there's nothing available, don't waste time trying to read
- something. */
- if (chars_avail == 0)
- return;
-
- tem = ibuffer_space ();
-
- if (chars_avail > tem)
- chars_avail = tem;
-
- /* One cannot read all of the available input. I can only read a single
- character at a time, or else programs which require input can be
- thwarted. If the buffer is larger than one character, I lose.
- Damn! */
- if (tem < ibuffer_len)
- chars_avail = 0;
-
- if (result != -1)
- {
- while (chars_avail--)
- rl_stuff_char (rl_getc (in_stream));
- }
- else
- {
- if (chars_avail)
- rl_stuff_char (input);
- }
-#endif /* !__GO32__ */
+ rl_point = rl_end = 0;
+ the_line = rl_line_buffer;
+ the_line[0] = 0;
}
-static int next_macro_key ();
-/* Read a key, including pending input. */
-int
-rl_read_key ()
+void
+_rl_set_the_line ()
{
- int c;
-
- rl_key_sequence_length++;
-
- if (rl_pending_input)
- {
- c = rl_pending_input;
- rl_pending_input = 0;
- }
- else
- {
- /* If input is coming from a macro, then use that. */
- if (c = next_macro_key ())
- return (c);
-
- /* If the user has an event function, then call it periodically. */
- if (rl_event_hook)
- {
- while (rl_event_hook && !rl_get_char (&c))
- {
- (*rl_event_hook) ();
- rl_gather_tyi ();
- }
- }
- else
- {
- if (!rl_get_char (&c))
- c = rl_getc (in_stream);
- }
- }
-
- return (c);
+ the_line = rl_line_buffer;
}
-/* 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)
+int
+_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);
+ int r, newkey;
+ char *macro;
+ Function *func;
if (META_CHAR (key) && _rl_convert_meta_chars_to_ascii)
{
if (map[ESC].type == ISKMAP)
{
-#if defined (CRAY)
- map = (Keymap)((int)map[ESC].function);
-#else
- map = (Keymap)map[ESC].function;
-#endif
+ if (_rl_defining_kbd_macro)
+ _rl_add_macro_char (ESC);
+ map = FUNCTION_TO_KEYMAP (map, ESC);
key = UNMETA (key);
rl_key_sequence_length += 2;
- rl_dispatch (key, map);
+ return (_rl_dispatch (key, map));
}
else
ding ();
- return;
+ return 0;
}
+ if (_rl_defining_kbd_macro)
+ _rl_add_macro_char (key);
+
+ r = 0;
switch (map[key].type)
{
case ISFUNC:
- {
- Function *func = map[key].function;
-
- if (func != (Function *)NULL)
- {
- /* Special case rl_do_lowercase_version (). */
- if (func == rl_do_lowercase_version)
- {
- rl_dispatch (to_lower (key), map);
- return;
- }
-
- (*map[key].function)(rl_numeric_arg * rl_arg_sign, key);
-
- /* If we have input pending, then the last command was a prefix
- command. Don't change the state of rl_last_func. Otherwise,
- remember the last command executed in this variable. */
- if (!rl_pending_input)
- rl_last_func = map[key].function;
- }
- else
- {
- rl_abort ();
- return;
- }
- }
+ func = map[key].function;
+ if (func != (Function *)NULL)
+ {
+ /* Special case rl_do_lowercase_version (). */
+ if (func == rl_do_lowercase_version)
+ return (_rl_dispatch (_rl_to_lower (key), map));
+
+ rl_executing_keymap = map;
+
+#if 0
+ _rl_suppress_redisplay = (map[key].function == rl_insert) && _rl_input_available ();
+#endif
+
+ rl_dispatching = 1;
+ r = (*map[key].function)(rl_numeric_arg * rl_arg_sign, key);
+ rl_dispatching = 0;
+
+ /* If we have input pending, then the last command was a prefix
+ command. Don't change the state of rl_last_func. Otherwise,
+ remember the last command executed in this variable. */
+ if (!rl_pending_input && map[key].function != rl_digit_argument)
+ rl_last_func = map[key].function;
+ }
+ else
+ {
+ _rl_abort_internal ();
+ return -1;
+ }
break;
case ISKMAP:
if (map[key].function != (Function *)NULL)
{
- int newkey;
-
rl_key_sequence_length++;
newkey = rl_read_key ();
-#if defined (CRAY)
- /* If you cast map[key].function to type (Keymap) on a Cray,
- the compiler takes the value of may[key].function and
- divides it by 4 to convert between pointer types (pointers
- to functions and pointers to structs are different sizes).
- This is not what is wanted. */
- rl_dispatch (newkey, (Keymap)((int)map[key].function));
-#else
- rl_dispatch (newkey, (Keymap)map[key].function);
-#endif /* !CRAY */
+ r = _rl_dispatch (newkey, FUNCTION_TO_KEYMAP (map, key));
}
else
{
- rl_abort ();
- return;
+ _rl_abort_internal ();
+ return -1;
}
break;
case ISMACR:
if (map[key].function != (Function *)NULL)
{
- char *macro;
-
macro = savestring ((char *)map[key].function);
- with_macro_input (macro);
- return;
+ _rl_with_macro_input (macro);
+ return 0;
}
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;
- }
+ _rl_vi_textmod_command (key))
+ _rl_vi_set_last (key, rl_numeric_arg, rl_arg_sign);
#endif
+ return (r);
}
-\f
/* **************************************************************** */
/* */
-/* Hacking Keyboard Macros */
+/* Initializations */
/* */
/* **************************************************************** */
-/* The currently executing macro string. If this is non-zero,
- then it is a malloc ()'ed string where input is coming from. */
-static char *executing_macro = (char *)NULL;
-
-/* The offset in the above string to the next character to be read. */
-static int executing_macro_index = 0;
+/* Initialize readline (and terminal if not already). */
+int
+rl_initialize ()
+{
+ /* If we have never been called before, initialize the
+ terminal and data structures. */
+ if (!rl_initialized)
+ {
+ readline_initialize_everything ();
+ rl_initialized++;
+ }
-/* The current macro string being built. Characters get stuffed
- in here by add_macro_char (). */
-static char *current_macro = (char *)NULL;
+ /* Initalize the current line information. */
+ _rl_init_line_state ();
-/* The size of the buffer allocated to current_macro. */
-static int current_macro_size = 0;
+ /* We aren't done yet. We haven't even gotten started yet! */
+ rl_done = 0;
-/* The index at which characters are being added to current_macro. */
-static int current_macro_index = 0;
+ /* Tell the history routines what is going on. */
+ start_using_history ();
-/* A structure used to save nested macro strings.
- It is a linked list of string/index for each saved macro. */
-struct saved_macro {
- struct saved_macro *next;
- char *string;
- int index;
-};
+ /* Make the display buffer match the state of the line. */
+ rl_reset_line_state ();
-/* The list of saved macros. */
-struct saved_macro *macro_list = (struct saved_macro *)NULL;
+ /* No such function typed yet. */
+ rl_last_func = (Function *)NULL;
-/* Forward declarations of static functions. Thank you C. */
-static void push_executing_macro (), pop_executing_macro ();
+ /* Parsing of key-bindings begins in an enabled state. */
+ _rl_parsing_conditionalized_out = 0;
-/* This one has to be declared earlier in the file. */
-/* static void add_macro_char (); */
+#if defined (VI_MODE)
+ if (rl_editing_mode == vi_mode)
+ _rl_vi_initialize_line ();
+#endif
-/* Set up to read subsequent input from STRING.
- STRING is free ()'ed when we are done with it. */
-static void
-with_macro_input (string)
- char *string;
-{
- push_executing_macro ();
- executing_macro = string;
- executing_macro_index = 0;
+ return 0;
}
-/* Return the next character available from a macro, or 0 if
- there are no macro characters. */
-static int
-next_macro_key ()
+#if defined (__EMX__)
+static void
+_emx_build_environ ()
{
- if (!executing_macro)
- return (0);
+ TIB *tibp;
+ PIB *pibp;
+ char *t, **tp;
+ int c;
- if (!executing_macro[executing_macro_index])
+ DosGetInfoBlocks (&tibp, &pibp);
+ t = pibp->pib_pchenv;
+ for (c = 1; *t; c++)
+ t += strlen (t) + 1;
+ tp = environ = (char **)xmalloc ((c + 1) * sizeof (char *));
+ t = pibp->pib_pchenv;
+ while (*t)
{
- pop_executing_macro ();
- return (next_macro_key ());
+ *tp++ = t;
+ t += strlen (t) + 1;
}
-
- return (executing_macro[executing_macro_index++]);
+ *tp = 0;
}
+#endif /* __EMX__ */
-/* Save the currently executing macro on a stack of saved macros. */
+/* Initialize the entire state of the world. */
static void
-push_executing_macro ()
+readline_initialize_everything ()
{
- struct saved_macro *saver;
+#if defined (__EMX__)
+ if (environ == 0)
+ _emx_build_environ ();
+#endif
- saver = (struct saved_macro *)xmalloc (sizeof (struct saved_macro));
- saver->next = macro_list;
- saver->index = executing_macro_index;
- saver->string = executing_macro;
+ /* Find out if we are running in Emacs. */
+ running_in_emacs = get_env_value ("EMACS") != (char *)0;
- macro_list = saver;
-}
+ /* Set up input and output if they are not already set up. */
+ if (!rl_instream)
+ rl_instream = stdin;
-/* Discard the current macro, replacing it with the one
- on the top of the stack of saved macros. */
-static void
-pop_executing_macro ()
-{
- if (executing_macro)
- free (executing_macro);
+ if (!rl_outstream)
+ rl_outstream = stdout;
- executing_macro = (char *)NULL;
- executing_macro_index = 0;
+ /* Bind _rl_in_stream and _rl_out_stream immediately. These values
+ may change, but they may also be used before readline_internal ()
+ is called. */
+ _rl_in_stream = rl_instream;
+ _rl_out_stream = rl_outstream;
- if (macro_list)
- {
- struct saved_macro *disposer = macro_list;
- executing_macro = macro_list->string;
- executing_macro_index = macro_list->index;
- macro_list = macro_list->next;
- free (disposer);
- }
-}
+ /* Allocate data structures. */
+ if (rl_line_buffer == 0)
+ rl_line_buffer = xmalloc (rl_line_buffer_len = DEFAULT_BUFFER_SIZE);
-/* Add a character to the macro being built. */
-static void
-add_macro_char (c)
- int c;
-{
- if (current_macro_index + 1 >= current_macro_size)
- {
- if (!current_macro)
- current_macro = (char *)xmalloc (current_macro_size = 25);
- else
- current_macro =
- (char *)xrealloc (current_macro, current_macro_size += 25);
- }
+ /* Initialize the terminal interface. */
+ _rl_init_terminal_io ((char *)NULL);
- current_macro[current_macro_index++] = c;
- current_macro[current_macro_index] = '\0';
-}
+#if !defined (__GO32__) || defined (HAVE_TERMIOS_H)
+ /* Bind tty characters to readline functions. */
+ readline_default_bindings ();
+#endif /* !__GO32__ || HAVE_TERMIOS_H */
-/* Begin defining a keyboard macro.
- Keystrokes are recorded as they are executed.
- End the definition with rl_end_kbd_macro ().
- If a numeric argument was explicitly typed, then append this
- definition to the end of the existing macro, and start by
- re-executing the existing macro. */
-rl_start_kbd_macro (ignore1, ignore2)
- int ignore1, ignore2;
-{
- if (defining_kbd_macro)
- rl_abort ();
+ /* Initialize the function names. */
+ rl_initialize_funmap ();
- if (rl_explicit_arg)
+ /* Decide whether we should automatically go into eight-bit mode. */
+ _rl_init_eightbit ();
+
+ /* Read in the init file. */
+ rl_read_init_file ((char *)NULL);
+
+ /* XXX */
+ if (_rl_horizontal_scroll_mode && _rl_term_autowrap)
{
- if (current_macro)
- with_macro_input (savestring (current_macro));
+ screenwidth--;
+ screenchars -= screenheight;
}
- else
- current_macro_index = 0;
-
- defining_kbd_macro = 1;
-}
-/* Stop defining a keyboard macro.
- A numeric argument says to execute the macro right now,
- that many times, counting the definition as the first time. */
-rl_end_kbd_macro (count, ignore)
- int count, ignore;
-{
- if (!defining_kbd_macro)
- rl_abort ();
+ /* Override the effect of any `set keymap' assignments in the
+ inputrc file. */
+ rl_set_keymap_from_edit_mode ();
- current_macro_index -= (rl_key_sequence_length - 1);
- current_macro[current_macro_index] = '\0';
+ /* Try to bind a common arrow key prefix, if not already bound. */
+ bind_arrow_keys ();
- defining_kbd_macro = 0;
+ /* Enable the meta key, if this terminal has one. */
+ if (_rl_enable_meta)
+ _rl_enable_meta_key ();
- rl_call_last_kbd_macro (--count, 0);
+ /* If the completion parser's default word break characters haven't
+ been set yet, then do so now. */
+ if (rl_completer_word_break_characters == (char *)NULL)
+ rl_completer_word_break_characters = rl_basic_word_break_characters;
}
-/* Execute the most recently defined keyboard macro.
- COUNT says how many times to execute it. */
-rl_call_last_kbd_macro (count, ignore)
- int count, ignore;
+/* 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 ()
{
- if (!current_macro)
- rl_abort ();
-
- if (defining_kbd_macro)
- {
- ding (); /* no recursive macros */
- current_macro[--current_macro_index] = '\0'; /* erase this char */
- return 0;
- }
-
- while (count--)
- with_macro_input (savestring (current_macro));
+ rltty_set_default_bindings (_rl_keymap);
}
-void
-_rl_kill_kbd_macro ()
+static void
+bind_arrow_keys_internal ()
{
- if (current_macro)
- {
- free (current_macro);
- current_macro = (char *) NULL;
- }
- current_macro_size = current_macro_index = 0;
+ Function *f;
- if (executing_macro)
+ f = rl_function_of_keyseq ("\033[A", _rl_keymap, (int *)NULL);
+ if (!f || f == rl_do_lowercase_version)
{
- free (executing_macro);
- executing_macro = (char *) NULL;
+ _rl_bind_if_unbound ("\033[A", rl_get_previous_history);
+ _rl_bind_if_unbound ("\033[B", rl_get_next_history);
+ _rl_bind_if_unbound ("\033[C", rl_forward);
+ _rl_bind_if_unbound ("\033[D", rl_backward);
}
- executing_macro_index = 0;
-
- defining_kbd_macro = 0;
-}
-
-\f
-/* **************************************************************** */
-/* */
-/* Initializations */
-/* */
-/* **************************************************************** */
-/* Initliaze readline (and terminal if not already). */
-rl_initialize ()
-{
- /* If we have never been called before, initialize the
- terminal and data structures. */
- if (!rl_initialized)
+ f = rl_function_of_keyseq ("\033OA", _rl_keymap, (int *)NULL);
+ if (!f || f == rl_do_lowercase_version)
{
- readline_initialize_everything ();
- rl_initialized++;
+ _rl_bind_if_unbound ("\033OA", rl_get_previous_history);
+ _rl_bind_if_unbound ("\033OB", rl_get_next_history);
+ _rl_bind_if_unbound ("\033OC", rl_forward);
+ _rl_bind_if_unbound ("\033OD", rl_backward);
}
-
- /* Initalize the current line information. */
- rl_point = rl_end = 0;
- the_line = rl_line_buffer;
- the_line[0] = 0;
-
- /* We aren't done yet. We haven't even gotten started yet! */
- rl_done = 0;
-
- /* Tell the history routines what is going on. */
- start_using_history ();
-
- /* Make the display buffer match the state of the line. */
- rl_reset_line_state ();
-
- /* No such function typed yet. */
- rl_last_func = (Function *)NULL;
-
- /* Parsing of key-bindings begins in an enabled state. */
- _rl_parsing_conditionalized_out = 0;
}
-/* Initialize the entire state of the world. */
-readline_initialize_everything ()
+/* Try and bind the common arrow key prefix after giving termcap and
+ the inputrc file a chance to bind them and create `real' keymaps
+ for the arrow key prefix. */
+static void
+bind_arrow_keys ()
{
- /* Find out if we are running in Emacs. */
- running_in_emacs = getenv ("EMACS");
-
- /* 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 =
- (char *)xmalloc (rl_line_buffer_len = DEFAULT_BUFFER_SIZE);
-
- /* Initialize the terminal interface. */
- init_terminal_io ((char *)NULL);
-
-#if !defined (__GO32__)
- /* Bind tty characters to readline functions. */
- readline_default_bindings ();
-#endif /* !__GO32__ */
+ Keymap xkeymap;
- /* Initialize the function names. */
- rl_initialize_funmap ();
+ xkeymap = _rl_keymap;
- /* Read in the init file. */
- rl_read_init_file ((char *)NULL);
+ _rl_keymap = emacs_standard_keymap;
+ bind_arrow_keys_internal ();
- /* If the completion parser's default word break characters haven't
- been set yet, then do so now. */
- {
- if (rl_completer_word_break_characters == (char *)NULL)
- rl_completer_word_break_characters = rl_basic_word_break_characters;
- }
-}
+#if defined (VI_MODE)
+ _rl_keymap = vi_movement_keymap;
+ bind_arrow_keys_internal ();
+#endif
-/* 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. */
-#if !defined (__GO32__)
-static void
-readline_default_bindings ()
-{
- rltty_set_default_bindings (_rl_keymap);
+ _rl_keymap = xkeymap;
}
-#endif /* !__GO32__ */
\f
/* **************************************************************** */
/* **************************************************************** */
/* Handle C-u style numeric args, as well as M--, and M-digits. */
+static int
+rl_digit_loop ()
+{
+ int key, c, sawminus, sawdigits;
+
+ rl_save_prompt ();
+
+ sawminus = sawdigits = 0;
+ while (1)
+ {
+ if (rl_numeric_arg > 1000000)
+ {
+ sawdigits = rl_explicit_arg = rl_numeric_arg = 0;
+ ding ();
+ rl_restore_prompt ();
+ rl_clear_message ();
+ return 1;
+ }
+ rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg);
+ key = c = rl_read_key ();
+
+ /* If we see a key bound to `universal-argument' after seeing digits,
+ it ends the argument but is otherwise ignored. */
+ if (_rl_keymap[c].type == ISFUNC &&
+ _rl_keymap[c].function == rl_universal_argument)
+ {
+ if (sawdigits == 0)
+ {
+ rl_numeric_arg *= 4;
+ continue;
+ }
+ else
+ {
+ key = rl_read_key ();
+ rl_restore_prompt ();
+ rl_clear_message ();
+ return (_rl_dispatch (key, _rl_keymap));
+ }
+ }
+
+ c = UNMETA (c);
+
+ if (_rl_digit_p (c))
+ {
+ rl_numeric_arg = rl_explicit_arg ? (rl_numeric_arg * 10) + c - '0' : c - '0';
+ sawdigits = rl_explicit_arg = 1;
+ }
+ else if (c == '-' && rl_explicit_arg == 0)
+ {
+ rl_numeric_arg = sawminus = 1;
+ rl_arg_sign = -1;
+ }
+ else
+ {
+ /* Make M-- command equivalent to M--1 command. */
+ if (sawminus && rl_numeric_arg == 1 && rl_explicit_arg == 0)
+ rl_explicit_arg = 1;
+ rl_restore_prompt ();
+ rl_clear_message ();
+ return (_rl_dispatch (key, _rl_keymap));
+ }
+ }
+
+ return 0;
+}
/* Add the current digit to the argument in progress. */
+int
rl_digit_argument (ignore, key)
int ignore, key;
{
rl_pending_input = key;
- rl_digit_loop ();
+ return (rl_digit_loop ());
}
/* What to do when you abort reading an argument. */
+int
rl_discard_argument ()
{
ding ();
rl_clear_message ();
- rl_init_argument ();
+ _rl_init_argument ();
+ return 0;
}
/* Create a default argument. */
-rl_init_argument ()
+int
+_rl_init_argument ()
{
rl_numeric_arg = rl_arg_sign = 1;
rl_explicit_arg = 0;
+ return 0;
}
/* C-u, universal argument. Multiply the current argument by 4.
Read a key. If the key has nothing to do with arguments, then
dispatch on it. If the key is the abort character then abort. */
-rl_universal_argument ()
+int
+rl_universal_argument (count, key)
+ int count, key;
{
rl_numeric_arg *= 4;
- rl_digit_loop ();
+ return (rl_digit_loop ());
}
-rl_digit_loop ()
-{
- int key, c;
- while (1)
- {
- rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg);
- key = c = rl_read_key ();
-
- if (_rl_keymap[c].type == ISFUNC &&
- _rl_keymap[c].function == rl_universal_argument)
- {
- rl_numeric_arg *= 4;
- continue;
- }
- c = UNMETA (c);
- if (numeric (c))
- {
- if (rl_explicit_arg)
- rl_numeric_arg = (rl_numeric_arg * 10) + (c - '0');
- else
- rl_numeric_arg = (c - '0');
- rl_explicit_arg = 1;
- }
- else
- {
- if (c == '-' && !rl_explicit_arg)
- {
- rl_numeric_arg = 1;
- rl_arg_sign = -1;
- }
- else
- {
- rl_clear_message ();
- rl_dispatch (key, _rl_keymap);
- return;
- }
- }
- }
-}
-\f
/* **************************************************************** */
/* */
-/* Terminal and Termcap */
+/* Insert and Delete */
/* */
/* **************************************************************** */
-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 #includes sys/reg.h, which #defines PC.
- Unfortunately, PC is a global variable used by the termcap library. */
-#undef PC
-
-#if !defined (__linux__)
-char PC;
-char *BC, *UP;
-#endif /* __linux__ */
-
-/* Some strings to control terminal actions. These are output by tputs (). */
-char *term_goto, *term_clreol, *term_cr, *term_clrpag, *term_backspace;
+/* Insert a string of text into the line at point. This is the only
+ way that you should do insertion. rl_insert () calls this
+ function. */
+int
+rl_insert_text (string)
+ char *string;
+{
+ register int i, l = strlen (string);
-int screenwidth, screenheight;
+ if (rl_end + l >= rl_line_buffer_len)
+ rl_extend_line_buffer (rl_end + l);
-/* Non-zero if we determine that the terminal can do character insertion. */
-int terminal_can_insert = 0;
+ for (i = rl_end; i >= rl_point; i--)
+ the_line[i + l] = the_line[i];
+ strncpy (the_line + rl_point, string, l);
-/* How to insert characters. */
-char *term_im, *term_ei, *term_ic, *term_ip, *term_IC;
+ /* Remember how to undo this if we aren't undoing something. */
+ if (!_rl_doing_an_undo)
+ {
+ /* If possible and desirable, concatenate the undos. */
+ if ((l == 1) &&
+ rl_undo_list &&
+ (rl_undo_list->what == UNDO_INSERT) &&
+ (rl_undo_list->end == rl_point) &&
+ (rl_undo_list->end - rl_undo_list->start < 20))
+ rl_undo_list->end++;
+ else
+ rl_add_undo (UNDO_INSERT, rl_point, rl_point + l, (char *)NULL);
+ }
+ rl_point += l;
+ rl_end += l;
+ the_line[rl_end] = '\0';
+ return l;
+}
-/* How to delete characters. */
-char *term_dc, *term_DC;
+/* Delete the string between FROM and TO. FROM is
+ inclusive, TO is not. */
+int
+rl_delete_text (from, to)
+ int from, to;
+{
+ register char *text;
+ register int diff, i;
-#if defined (HACK_TERMCAP_MOTION)
-char *term_forward_char;
-#endif /* HACK_TERMCAP_MOTION */
+ /* Fix it if the caller is confused. */
+ if (from > to)
+ SWAP (from, to);
-/* How to go up a line. */
-char *term_up;
+ /* fix boundaries */
+ if (to > rl_end)
+ {
+ to = rl_end;
+ if (from > to)
+ from = to;
+ }
-/* True if we have funny auto-line-wrap ("am" and "xn"). */
-int term_xn;
+ text = rl_copy_text (from, to);
-/* A visible bell, if the terminal can be made to flash the screen. */
-char *visible_bell;
+ /* Some versions of strncpy() can't handle overlapping arguments. */
+ diff = to - from;
+ for (i = from; i < rl_end - diff; i++)
+ the_line[i] = the_line[i + diff];
-/* Non-zero means that this terminal has a meta key. */
-int term_has_meta;
+ /* Remember how to undo this delete. */
+ if (_rl_doing_an_undo == 0)
+ rl_add_undo (UNDO_DELETE, from, to, text);
+ else
+ free (text);
-/* The string to write to turn on the meta key, if this term has one. */
-char *term_mm;
+ rl_end -= diff;
+ the_line[rl_end] = '\0';
+ return (diff);
+}
-/* The string to write to turn off the meta key, if this term has one. */
-char *term_mo;
+/* Fix up point so that it is within the line boundaries after killing
+ text. If FIX_MARK_TOO is non-zero, the mark is forced within line
+ boundaries also. */
-/* The key sequences output by the arrow keys, if this terminal has any. */
-char *term_ku, *term_kd, *term_kr, *term_kl;
+#define _RL_FIX_POINT(x) \
+ do { \
+ if (x > rl_end) \
+ x = rl_end; \
+ else if (x < 0) \
+ x = 0; \
+ } while (0)
-/* Re-initialize the terminal considering that the TERM/TERMCAP variable
- has changed. */
-rl_reset_terminal (terminal_name)
- char *terminal_name;
+void
+_rl_fix_point (fix_mark_too)
+ int fix_mark_too;
{
- init_terminal_io (terminal_name);
+ _RL_FIX_POINT (rl_point);
+ if (fix_mark_too)
+ _RL_FIX_POINT (rl_mark);
}
+#undef _RL_FIX_POINT
-/* 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;
+_rl_replace_text (text, start, end)
+ char *text;
+ int start, end;
{
-#if defined (TIOCGWINSZ) && !defined (TIOCGWINSZ_BROKEN)
- struct winsize window_size;
-#endif /* TIOCGWINSZ */
-
-#if defined (TIOCGWINSZ) && !defined (TIOCGWINSZ_BROKEN)
- if (ioctl (tty, TIOCGWINSZ, &window_size) == 0)
- {
- screenwidth = (int) window_size.ws_col;
- screenheight = (int) window_size.ws_row;
- }
-#endif /* TIOCGWINSZ */
-
- /* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV
- is unset. */
- if (screenwidth <= 0)
- {
- char *sw;
+ rl_begin_undo_group ();
+ rl_delete_text (start, end + 1);
+ rl_point = start;
+ rl_insert_text (text);
+ rl_end_undo_group ();
+}
- if (!ignore_env && (sw = getenv ("COLUMNS")))
- screenwidth = atoi (sw);
-
- if (screenwidth <= 0 && term_string_buffer)
- screenwidth = tgetnum ("co");
- }
-
- /* Environment variable LINES overrides setting of "li" if IGNORE_ENV
- is unset. */
- if (screenheight <= 0)
- {
- char *sh;
-
- if (!ignore_env && (sh = getenv ("LINES")))
- screenheight = atoi (sh);
-
- if (screenheight <= 0 && term_string_buffer)
- screenheight = tgetnum ("li");
- }
-
- /* If all else fails, default to 80x24 terminal. */
- if (screenwidth <= 0)
- screenwidth = 80;
-
- if (screenheight <= 0)
- screenheight = 24;
-
-#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
-
- /* If we don't have xn (most modern terminals do),
- don't use the last column. */
- if (!term_xn)
- screenwidth--;
-}
-
-init_terminal_io (terminal_name)
- char *terminal_name;
-{
-#if defined (__GO32__)
- 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;
-#endif /* HACK_TERMCAP_MOTION */
- terminal_can_insert = term_xn = 0;
- return;
-#else /* !__GO32__ */
-
- char *term, *buffer;
- int tty;
-
- term = terminal_name ? terminal_name : getenv ("TERM");
-
- if (!term_string_buffer)
- term_string_buffer = (char *)xmalloc (2048);
-
- if (!term_buffer)
- term_buffer = (char *)xmalloc (2048);
-
- buffer = term_string_buffer;
-
- term_clrpag = term_cr = term_clreol = (char *)NULL;
-
- if (!term)
- term = "dumb";
-
- if (tgetent (term_buffer, term) <= 0)
- {
- dumb_term = 1;
- screenwidth = 79;
- screenheight = 24;
- 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
- terminal_can_insert = term_xn = 0;
- return;
- }
-
- BC = tgetstr ("pc", &buffer);
- PC = buffer ? *buffer : 0;
-
- term_backspace = tgetstr ("le", &buffer);
-
- term_cr = tgetstr ("cr", &buffer);
- term_clreol = tgetstr ("ce", &buffer);
- term_clrpag = tgetstr ("cl", &buffer);
-
- if (!term_cr)
- term_cr = "\r";
-
-#if defined (HACK_TERMCAP_MOTION)
- term_forward_char = tgetstr ("nd", &buffer);
-#endif /* HACK_TERMCAP_MOTION */
-
- if (rl_instream)
- tty = fileno (rl_instream);
- else
- tty = 0;
-
- screenwidth = screenheight = 0;
-
- term_xn = tgetflag ("am") && tgetflag ("xn");
-
- _rl_set_screen_size (tty, 0);
-
- term_im = tgetstr ("im", &buffer);
- term_ei = tgetstr ("ei", &buffer);
- term_IC = tgetstr ("IC", &buffer);
- term_ic = tgetstr ("ic", &buffer);
-
- /* "An application program can assume that the terminal can do
- character insertion if *any one of* the capabilities `IC',
- `im', `ic' or `ip' is provided." But we can't do anything if
- only `ip' is provided, so... */
- terminal_can_insert = (term_IC || term_im || term_ic);
-
- term_up = tgetstr ("up", &buffer);
- term_dc = tgetstr ("dc", &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__ */
- return 0;
-}
-
-/* A function for the use of tputs () */
-int
-_rl_output_character_function (c)
- int c;
-{
- return putc (c, out_stream);
-}
-
-/* Write COUNT characters from STRING to the output stream. */
-void
-_rl_output_some_chars (string, count)
- char *string;
- int count;
-{
- fwrite (string, 1, count, out_stream);
-}
-
-/* Move the cursor back. */
-backspace (count)
- int count;
-{
- register int i;
-
-#if !defined (__GO32__)
- if (term_backspace)
- for (i = 0; i < count; i++)
- tputs (term_backspace, 1, _rl_output_character_function);
- else
-#endif /* !__GO32__ */
- for (i = 0; i < count; i++)
- putc ('\b', out_stream);
-}
-
-/* Move to the start of the next line. */
-crlf ()
-{
-#if defined (NEW_TTY_DRIVER)
- tputs (term_cr, 1, _rl_output_character_function);
-#endif /* NEW_TTY_DRIVER */
- putc ('\n', out_stream);
-}
-
-\f
-/* **************************************************************** */
-/* */
-/* Utility Functions */
-/* */
-/* **************************************************************** */
-
-/* Return 0 if C is not a member of the class of characters that belong
- in words, or 1 if it is. */
-
-int allow_pathname_alphabetic_chars = 0;
-char *pathname_alphabetic_chars = "/-_=~.#$";
-
-int
-alphabetic (c)
- int c;
-{
- if (pure_alphabetic (c) || (numeric (c)))
- return (1);
-
- if (allow_pathname_alphabetic_chars)
- return (strchr (pathname_alphabetic_chars, c) != NULL);
- else
- return (0);
-}
-
-/* Return non-zero if C is a numeric character. */
-int
-numeric (c)
- int c;
-{
- return (c >= '0' && c <= '9');
-}
-
-/* Ring the terminal bell. */
-int
-ding ()
-{
- if (readline_echoing_p)
- {
-#if !defined (__GO32__)
- if (_rl_prefer_visible_bell && visible_bell)
- tputs (visible_bell, 1, _rl_output_character_function);
- else
-#endif /* !__GO32__ */
- {
- fprintf (stderr, "\007");
- fflush (stderr);
- }
- }
- return (-1);
-}
-
-/* How to abort things. */
-rl_abort ()
-{
- ding ();
- rl_clear_message ();
- rl_init_argument ();
- rl_pending_input = 0;
-
- defining_kbd_macro = 0;
- while (executing_macro)
- pop_executing_macro ();
-
- rl_last_func = (Function *)NULL;
- longjmp (readline_top_level, 1);
-}
-
-/* Return a copy of the string between FROM and TO.
- FROM is inclusive, TO is not. */
-char *
-rl_copy_text (from, to)
- int from, to;
-{
- register int length;
- char *copy;
-
- /* Fix it if the caller is confused. */
- if (from > to)
- {
- int t = from;
- from = to;
- to = t;
- }
-
- length = to - from;
- copy = (char *)xmalloc (1 + length);
- strncpy (copy, the_line + from, length);
- copy[length] = '\0';
- return (copy);
-}
-
-/* Increase the size of RL_LINE_BUFFER until it has enough space to hold
- LEN characters. */
-void
-rl_extend_line_buffer (len)
- int len;
-{
- while (len >= rl_line_buffer_len)
- rl_line_buffer =
- (char *)xrealloc
- (rl_line_buffer, rl_line_buffer_len += DEFAULT_BUFFER_SIZE);
-
- the_line = rl_line_buffer;
-}
-
-\f
-/* **************************************************************** */
-/* */
-/* Insert and Delete */
-/* */
-/* **************************************************************** */
-
-/* Insert a string of text into the line at point. This is the only
- way that you should do insertion. rl_insert () calls this
- function. */
-rl_insert_text (string)
- char *string;
-{
- register int i, l = strlen (string);
-
- if (rl_end + l >= rl_line_buffer_len)
- rl_extend_line_buffer (rl_end + l);
-
- for (i = rl_end; i >= rl_point; i--)
- the_line[i + l] = the_line[i];
- strncpy (the_line + rl_point, string, l);
-
- /* Remember how to undo this if we aren't undoing something. */
- if (!doing_an_undo)
- {
- /* If possible and desirable, concatenate the undos. */
- if ((strlen (string) == 1) &&
- rl_undo_list &&
- (rl_undo_list->what == UNDO_INSERT) &&
- (rl_undo_list->end == rl_point) &&
- (rl_undo_list->end - rl_undo_list->start < 20))
- rl_undo_list->end++;
- else
- rl_add_undo (UNDO_INSERT, rl_point, rl_point + l, (char *)NULL);
- }
- rl_point += l;
- rl_end += l;
- the_line[rl_end] = '\0';
-}
-
-/* Delete the string between FROM and TO. FROM is
- inclusive, TO is not. */
-rl_delete_text (from, to)
- int from, to;
-{
- register char *text;
-
- /* Fix it if the caller is confused. */
- if (from > to)
- {
- int t = from;
- from = to;
- to = t;
- }
- text = rl_copy_text (from, to);
- strncpy (the_line + from, the_line + to, rl_end - to);
-
- /* Remember how to undo this delete. */
- if (!doing_an_undo)
- rl_add_undo (UNDO_DELETE, from, to, text);
- else
- free (text);
-
- rl_end -= (to - from);
- the_line[rl_end] = '\0';
-}
-
-\f
/* **************************************************************** */
/* */
/* Readline character functions */
The second is the key which invoked this command.
*/
-\f
/* **************************************************************** */
/* */
/* Movement Commands */
might as well let rl_redisplay do that job. */
/* Move forward COUNT characters. */
-rl_forward (count)
- int count;
+int
+rl_forward (count, key)
+ int count, key;
{
if (count < 0)
- rl_backward (-count);
- else
- while (count)
- {
+ rl_backward (-count, key);
+ else if (count > 0)
+ {
+ int end = rl_point + count;
#if defined (VI_MODE)
- if (rl_point >= (rl_end - (rl_editing_mode == vi_mode)))
+ int lend = rl_end - (rl_editing_mode == vi_mode);
#else
- if (rl_point == rl_end)
-#endif /* VI_MODE */
- {
- ding ();
- return 0;
- }
- else
- rl_point++;
- --count;
- }
+ int lend = rl_end;
+#endif
+
+ if (end > lend)
+ {
+ rl_point = lend;
+ ding ();
+ }
+ else
+ rl_point = end;
+ }
return 0;
}
/* Move backward COUNT characters. */
-rl_backward (count)
- int count;
+int
+rl_backward (count, key)
+ int count, key;
{
if (count < 0)
- rl_forward (-count);
- else
- while (count)
- {
- if (!rl_point)
- {
- ding ();
- return 0;
- }
- else
- --rl_point;
- --count;
- }
+ rl_forward (-count, key);
+ else if (count > 0)
+ {
+ if (rl_point < count)
+ {
+ rl_point = 0;
+ ding ();
+ }
+ else
+ rl_point -= count;
+ }
return 0;
}
/* Move to the beginning of the line. */
-rl_beg_of_line ()
+int
+rl_beg_of_line (count, key)
+ int count, key;
{
rl_point = 0;
return 0;
}
/* Move to the end of the line. */
-rl_end_of_line ()
+int
+rl_end_of_line (count, key)
+ int count, key;
{
rl_point = rl_end;
return 0;
}
/* Move forward a word. We do what Emacs does. */
-rl_forward_word (count)
- int count;
+int
+rl_forward_word (count, key)
+ int count, key;
{
int c;
if (count < 0)
{
- rl_backward_word (-count);
+ rl_backward_word (-count, key);
return 0;
}
/* If we are not in a word, move forward until we are in one.
Then, move forward until we hit a non-alphabetic character. */
c = the_line[rl_point];
- if (!alphabetic (c))
+ if (alphabetic (c) == 0)
{
while (++rl_point < rl_end)
{
c = the_line[rl_point];
- if (alphabetic (c)) break;
+ if (alphabetic (c))
+ break;
}
}
- if (rl_point == rl_end) return;
+ if (rl_point == rl_end)
+ return 0;
while (++rl_point < rl_end)
{
c = the_line[rl_point];
- if (!alphabetic (c)) break;
+ if (alphabetic (c) == 0)
+ break;
}
--count;
}
}
/* Move backward a word. We do what Emacs does. */
-rl_backward_word (count)
- int count;
+int
+rl_backward_word (count, key)
+ int count, key;
{
int c;
if (count < 0)
{
- rl_forward_word (-count);
+ rl_forward_word (-count, key);
return 0;
}
just before point. */
c = the_line[rl_point - 1];
- if (!alphabetic (c))
+ if (alphabetic (c) == 0)
{
while (--rl_point)
{
c = the_line[rl_point - 1];
- if (alphabetic (c)) break;
+ if (alphabetic (c))
+ break;
}
}
while (rl_point)
{
c = the_line[rl_point - 1];
- if (!alphabetic (c))
+ if (alphabetic (c) == 0)
break;
- else --rl_point;
+ else
+ --rl_point;
}
--count;
}
}
/* Clear the current line. Numeric argument to C-l does this. */
-rl_refresh_line ()
+int
+rl_refresh_line (ignore1, ignore2)
+ int ignore1, ignore2;
{
- int curr_line = _rl_last_c_pos / screenwidth;
+ int curr_line, nleft;
+
+ /* Find out whether or not there might be invisible characters in the
+ editing buffer. */
+ if (rl_display_prompt == rl_prompt)
+ nleft = _rl_last_c_pos - screenwidth - rl_visible_prompt_length;
+ else
+ nleft = _rl_last_c_pos - screenwidth;
+
+ if (nleft > 0)
+ curr_line = 1 + nleft / screenwidth;
+ else
+ curr_line = 0;
_rl_move_vert (curr_line);
_rl_move_cursor_relative (0, the_line); /* XXX is this right */
-#if defined (__GO32__)
+#if defined (__GO32__) && !defined (__DJGPP__)
{
int row, col, width, row_start;
row_start = ScreenPrimary + (row * width);
memset (row_start + col, 0, (width - col) * 2);
}
-#else /* !__GO32__ */
- if (term_clreol)
- tputs (term_clreol, 1, _rl_output_character_function);
-#endif /* !__GO32__ */
+#else /* !__GO32__ || __DJGPP__ */
+ _rl_clear_to_eol (0); /* arg of 0 means to not use spaces */
+#endif /* !__GO32__ || __DJGPP__ */
rl_forced_update_display ();
rl_display_fixed = 1;
/* C-l typed to a line without quoting clears the screen, and then reprints
the prompt and the current input line. Given a numeric arg, redraw only
the current line. */
-rl_clear_screen ()
+int
+rl_clear_screen (count, key)
+ int count, key;
{
if (rl_explicit_arg)
{
- rl_refresh_line ();
+ rl_refresh_line (count, key);
return 0;
}
-#if !defined (__GO32__)
- if (term_clrpag)
- tputs (term_clrpag, 1, _rl_output_character_function);
- else
-#endif /* !__GO32__ */
- crlf ();
-
+ _rl_clear_screen (); /* calls termcap function to clear screen */
rl_forced_update_display ();
rl_display_fixed = 1;
return 0;
}
+int
rl_arrow_keys (count, c)
int count, c;
{
ch = rl_read_key ();
- switch (to_upper (ch))
+ switch (_rl_to_upper (ch))
{
case 'A':
- rl_get_previous_history (count);
+ rl_get_previous_history (count, ch);
break;
case 'B':
- rl_get_next_history (count);
+ rl_get_next_history (count, ch);
break;
case 'C':
- rl_forward (count);
+ rl_forward (count, ch);
break;
case 'D':
- rl_backward (count);
+ rl_backward (count, ch);
break;
default:
/* **************************************************************** */
/* Insert the character C at the current location, moving point forward. */
+int
rl_insert (count, c)
int count, c;
{
/* If we can optimize, then do it. But don't let people crash
readline because of extra large arguments. */
- if (count > 1 && count < 1024)
+ if (count > 1 && count <= 1024)
{
- string = (char *)alloca (1 + count);
+ string = xmalloc (1 + count);
for (i = 0; i < count; i++)
string[i] = c;
string[i] = '\0';
rl_insert_text (string);
+ free (string);
+
return 0;
}
if (count > 1024)
{
int decreaser;
-
- string = (char *)alloca (1024 + 1);
+ char str[1024+1];
for (i = 0; i < 1024; i++)
- string[i] = c;
+ str[i] = c;
while (count)
{
decreaser = (count > 1024 ? 1024 : count);
- string[decreaser] = '\0';
- rl_insert_text (string);
+ str[decreaser] = '\0';
+ rl_insert_text (str);
count -= decreaser;
}
+
return 0;
}
If there is pending input, then make a string of all of the
pending characters that are bound to rl_insert, and insert
them all. */
- if (any_typein)
- {
- int key = 0, t;
-
- i = 0;
- string = (char *)alloca (ibuffer_len + 1);
- string[i++] = c;
-
- while ((t = rl_get_char (&key)) &&
- (_rl_keymap[key].type == ISFUNC &&
- _rl_keymap[key].function == rl_insert))
- string[i++] = key;
-
- if (t)
- rl_unget_char (key);
-
- string[i] = '\0';
- rl_insert_text (string);
- }
+ if (_rl_any_typein ())
+ _rl_insert_typein (c);
else
{
/* Inserting a single character. */
- string = (char *)alloca (2);
+ char str[2];
- string[1] = '\0';
- string[0] = c;
- rl_insert_text (string);
+ str[1] = '\0';
+ str[0] = c;
+ rl_insert_text (str);
}
return 0;
}
/* Insert the next typed character verbatim. */
-rl_quoted_insert (count)
- int count;
+int
+rl_quoted_insert (count, key)
+ int count, key;
{
int c;
c = rl_read_key ();
- return (rl_insert (count, c));
-
+ return (rl_insert (count, c));
}
/* Insert a tab character. */
-rl_tab_insert (count)
- int count;
+int
+rl_tab_insert (count, key)
+ int count, key;
{
return (rl_insert (count, '\t'));
}
/* What to do when a NEWLINE is pressed. We accept the whole line.
KEY is the key that invoked this command. I guess it could have
meaning in the future. */
+int
rl_newline (count, key)
int count, key;
{
rl_done = 1;
#if defined (VI_MODE)
- {
- extern int _rl_vi_doing_insert;
- if (_rl_vi_doing_insert)
- {
- rl_end_undo_group ();
- _rl_vi_doing_insert = 0;
- }
- }
- rl_vi_set_last ();
-
-#endif /* VI_MODE */
-
- if (readline_echoing_p)
+ if (rl_editing_mode == vi_mode)
{
- _rl_move_vert (_rl_vis_botlin);
- _rl_vis_botlin = 0;
- crlf ();
- fflush (out_stream);
- rl_display_fixed++;
+ _rl_vi_done_inserting ();
+ _rl_vi_reset_last ();
}
- return 0;
-}
+#endif /* VI_MODE */
+
+ /* If we've been asked to erase empty lines, suppress the final update,
+ since _rl_update_final calls crlf(). */
+ if (rl_erase_empty_line && rl_point == 0 && rl_end == 0)
+ return 0;
-rl_clean_up_for_exit ()
-{
if (readline_echoing_p)
- {
- _rl_move_vert (_rl_vis_botlin);
- _rl_vis_botlin = 0;
- fflush (out_stream);
- rl_restart_output ();
- }
+ _rl_update_final ();
return 0;
}
/* What to do for some uppercase characters, like meta characters,
and some characters appearing in emacs_ctlx_keymap. This function
- is just a stub, you bind keys to it and the code in rl_dispatch ()
+ is just a stub, you bind keys to it and the code in _rl_dispatch ()
is special cased. */
+int
rl_do_lowercase_version (ignore1, ignore2)
int ignore1, ignore2;
{
}
/* Rubout the character behind point. */
-rl_rubout (count)
- int count;
+int
+rl_rubout (count, key)
+ int count, key;
{
if (count < 0)
{
- rl_delete (-count);
+ rl_delete (-count, key);
return 0;
}
if (count > 1 || rl_explicit_arg)
{
int orig_point = rl_point;
- rl_backward (count);
+ rl_backward (count, key);
rl_kill_text (orig_point, rl_point);
}
else
/* Delete the character under the cursor. Given a numeric argument,
kill that many characters instead. */
-rl_delete (count, invoking_key)
- int count, invoking_key;
+int
+rl_delete (count, key)
+ int count, key;
{
if (count < 0)
- {
- return (rl_rubout (-count));
- }
+ return (rl_rubout (-count, key));
if (rl_point == rl_end)
{
if (count > 1 || rl_explicit_arg)
{
int orig_point = rl_point;
- rl_forward (count);
+ rl_forward (count, key);
rl_kill_text (orig_point, rl_point);
rl_point = orig_point;
return 0;
}
else
return (rl_delete_text (rl_point, rl_point + 1));
-
}
+/* Delete the character under the cursor, unless the insertion
+ point is at the end of the line, in which case the character
+ behind the cursor is deleted. COUNT is obeyed and may be used
+ to delete forward or backward that many characters. */
+int
+rl_rubout_or_delete (count, key)
+ int count, key;
+{
+ if (rl_end != 0 && rl_point == rl_end)
+ return (rl_rubout (count, key));
+ else
+ return (rl_delete (count, key));
+}
+
/* Delete all spaces and tabs around point. */
+int
rl_delete_horizontal_space (count, ignore)
int count, ignore;
{
return 0;
}
-\f
-/* **************************************************************** */
-/* */
-/* Kill commands */
-/* */
-/* **************************************************************** */
-
-/* The next two functions mimic unix line editing behaviour, except they
- save the deleted text on the kill ring. This is safer than not saving
- it, and since we have a ring, nobody should get screwed. */
-
-/* This does what C-w does in Unix. We can't prevent people from
- using behaviour that they expect. */
-rl_unix_word_rubout ()
+/* Like the tcsh editing function delete-char-or-list. The eof character
+ is caught before this is invoked, so this really does the same thing as
+ delete-char-or-list-or-eof, as long as it's bound to the eof character. */
+int
+rl_delete_or_show_completions (count, key)
+ int count, key;
{
- if (!rl_point)
- ding ();
+ if (rl_end != 0 && rl_point == rl_end)
+ return (rl_possible_completions (count, key));
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);
- }
- return 0;
+ return (rl_delete (count, key));
}
-/* Here is C-u doing what Unix does. You don't *have* to use these
- key-bindings. We have a choice of killing the entire line, or
- killing from where we are to the start of the line. We choose the
- latter, because if you are a Unix weenie, then you haven't backspaced
- into the line at all, and if you aren't, then you know what you are
- doing. */
-rl_unix_line_discard ()
+#ifndef RL_COMMENT_BEGIN_DEFAULT
+#define RL_COMMENT_BEGIN_DEFAULT "#"
+#endif
+
+/* Turn the current line into a comment in shell history.
+ A K*rn shell style function. */
+int
+rl_insert_comment (count, key)
+ int count, key;
{
- if (!rl_point)
- ding ();
- else
- {
- rl_kill_text (rl_point, 0);
- rl_point = 0;
- }
- return 0;
+ rl_beg_of_line (1, key);
+ rl_insert_text (_rl_comment_begin ? _rl_comment_begin
+ : RL_COMMENT_BEGIN_DEFAULT);
+ (*rl_redisplay_function) ();
+ rl_newline (1, '\n');
+ return (0);
}
-\f
-/* **************************************************************** */
-/* */
-/* Commands For Typos */
-/* */
-/* **************************************************************** */
-
-/* Random and interesting things in here. */
-
/* **************************************************************** */
/* */
/* Changing Case */
static int rl_change_case ();
/* Uppercase the word at point. */
-rl_upcase_word (count)
- int count;
+int
+rl_upcase_word (count, key)
+ int count, key;
{
return (rl_change_case (count, UpCase));
}
/* Lowercase the word at point. */
-rl_downcase_word (count)
- int count;
+int
+rl_downcase_word (count, key)
+ int count, key;
{
return (rl_change_case (count, DownCase));
}
/* Upcase the first letter, downcase the rest. */
-rl_capitalize_word (count)
- int count;
+int
+rl_capitalize_word (count, key)
+ int count, key;
{
return (rl_change_case (count, CapCase));
}
rl_change_case (count, op)
int count, op;
{
- register int start = rl_point, end;
- int state = 0;
+ register int start, end;
+ int inword, c;
- rl_forward_word (count);
+ start = rl_point;
+ rl_forward_word (count, 0);
end = rl_point;
if (count < 0)
- {
- int temp = start;
- start = end;
- end = temp;
- }
+ SWAP (start, end);
/* We are going to modify some text, so let's prepare to undo it. */
rl_modifying (start, end);
- for (; start < end; start++)
+ for (inword = 0; start < end; start++)
{
+ c = the_line[start];
switch (op)
{
case UpCase:
- the_line[start] = to_upper (the_line[start]);
+ the_line[start] = _rl_to_upper (c);
break;
case DownCase:
- the_line[start] = to_lower (the_line[start]);
+ the_line[start] = _rl_to_lower (c);
break;
case CapCase:
- if (state == 0)
- {
- the_line[start] = to_upper (the_line[start]);
- state = 1;
- }
- else
- {
- the_line[start] = to_lower (the_line[start]);
- }
- if (!pure_alphabetic (the_line[start]))
- state = 0;
+ the_line[start] = (inword == 0) ? _rl_to_upper (c) : _rl_to_lower (c);
+ inword = alphabetic (the_line[start]);
break;
default:
- abort ();
+ ding ();
return -1;
}
}
/* **************************************************************** */
/* Transpose the words at point. */
-rl_transpose_words (count)
- int count;
+int
+rl_transpose_words (count, key)
+ int count, key;
{
char *word1, *word2;
int w1_beg, w1_end, w2_beg, w2_end;
return 0;
/* Find the two words. */
- rl_forward_word (count);
+ rl_forward_word (count, key);
w2_end = rl_point;
- rl_backward_word (1);
+ rl_backward_word (1, key);
w2_beg = rl_point;
- rl_backward_word (count);
+ rl_backward_word (count, key);
w1_beg = rl_point;
- rl_forward_word (1);
+ rl_forward_word (1, key);
w1_end = rl_point;
/* Do some check to make sure that there really are two words. */
/* Transpose the characters at point. If point is at the end of the line,
then transpose the characters before point. */
-rl_transpose_chars (count)
- int count;
+int
+rl_transpose_chars (count, key)
+ int count, key;
{
char dummy[2];
rl_delete_text (rl_point, rl_point + 1);
rl_point += count;
- if (rl_point > rl_end)
- rl_point = rl_end;
- else if (rl_point < 0)
- rl_point = 0;
+ _rl_fix_point (0);
rl_insert_text (dummy);
rl_end_undo_group ();
return 0;
}
-\f
+
/* **************************************************************** */
/* */
-/* Undo, and Undoing */
+/* Character Searching */
/* */
/* **************************************************************** */
-/* 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. */
-void
-rl_add_undo (what, start, end, text)
- enum undo_code what;
- int start, end;
- char *text;
+int
+_rl_char_search_internal (count, dir, schar)
+ int count, dir, schar;
{
- UNDO_LIST *temp = (UNDO_LIST *)xmalloc (sizeof (UNDO_LIST));
- temp->what = what;
- temp->start = start;
- temp->end = end;
- temp->text = text;
- temp->next = rl_undo_list;
- rl_undo_list = temp;
-}
+ int pos, inc;
-/* Free the existing undo list. */
-void
-free_undo_list ()
-{
- while (rl_undo_list)
+ pos = rl_point;
+ inc = (dir < 0) ? -1 : 1;
+ while (count)
{
- UNDO_LIST *release = rl_undo_list;
- rl_undo_list = rl_undo_list->next;
-
- if (release->what == UNDO_DELETE)
- free (release->text);
+ if ((dir < 0 && pos <= 0) || (dir > 0 && pos >= rl_end))
+ {
+ ding ();
+ return -1;
+ }
- free (release);
+ pos += inc;
+ do
+ {
+ if (rl_line_buffer[pos] == schar)
+ {
+ count--;
+ if (dir < 0)
+ rl_point = (dir == BTO) ? pos + 1 : pos;
+ else
+ rl_point = (dir == FTO) ? pos - 1 : pos;
+ break;
+ }
+ }
+ while ((dir < 0) ? pos-- : ++pos < rl_end);
}
- rl_undo_list = (UNDO_LIST *)NULL;
-}
-
-/* Undo the next thing in the list. Return 0 if there
- is nothing to undo, or non-zero if there was. */
-int
-rl_do_undo ()
-{
- UNDO_LIST *release;
- int waiting_for_begin = 0;
-
-undo_thing:
- if (!rl_undo_list)
- return (0);
-
- doing_an_undo = 1;
-
- switch (rl_undo_list->what) {
-
- /* Undoing deletes means inserting some text. */
- case UNDO_DELETE:
- rl_point = rl_undo_list->start;
- rl_insert_text (rl_undo_list->text);
- free (rl_undo_list->text);
- break;
-
- /* Undoing inserts means deleting some text. */
- case UNDO_INSERT:
- rl_delete_text (rl_undo_list->start, rl_undo_list->end);
- rl_point = rl_undo_list->start;
- break;
-
- /* Undoing an END means undoing everything 'til we get to
- a BEGIN. */
- case UNDO_END:
- waiting_for_begin++;
- break;
-
- /* Undoing a BEGIN means that we are done with this group. */
- case UNDO_BEGIN:
- if (waiting_for_begin)
- waiting_for_begin--;
- else
-#if 0
- abort ();
-#else
- ding ();
-#endif
- break;
- }
-
- doing_an_undo = 0;
-
- release = rl_undo_list;
- rl_undo_list = rl_undo_list->next;
- free (release);
-
- if (waiting_for_begin)
- goto undo_thing;
-
- return (1);
+ return (0);
}
-/* Begin a group. Subsequent undos are undone as an atomic operation. */
-rl_begin_undo_group ()
+/* Search COUNT times for a character read from the current input stream.
+ FDIR is the direction to search if COUNT is non-negative; otherwise
+ the search goes in BDIR. */
+static int
+_rl_char_search (count, fdir, bdir)
+ int count, fdir, bdir;
{
- rl_add_undo (UNDO_BEGIN, 0, 0, 0);
- return 0;
-}
+ int c;
-/* End an undo group started with rl_begin_undo_group (). */
-rl_end_undo_group ()
-{
- rl_add_undo (UNDO_END, 0, 0, 0);
- return 0;
+ c = rl_read_key ();
+ if (count < 0)
+ return (_rl_char_search_internal (-count, bdir, c));
+ else
+ return (_rl_char_search_internal (count, fdir, c));
}
-/* Save an undo entry for the text from START to END. */
-rl_modifying (start, end)
- int start, end;
+int
+rl_char_search (count, key)
+ int count, key;
{
- if (start > end)
- {
- int t = start;
- start = end;
- end = t;
- }
-
- if (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);
- rl_end_undo_group ();
- }
- return 0;
+ return (_rl_char_search (count, FFIND, BFIND));
}
-/* Revert the current line to its previous state. */
-rl_revert_line ()
+int
+rl_backward_char_search (count, key)
+ int count, key;
{
- if (!rl_undo_list)
- ding ();
- else
- {
- while (rl_undo_list)
- rl_do_undo ();
- }
- return 0;
+ return (_rl_char_search (count, BFIND, FFIND));
}
-/* Do some undoing of things that were done. */
-rl_undo_command (count)
- int count;
-{
- if (count < 0)
- return 0; /* Nothing to do. */
-
- while (count)
- {
- if (rl_do_undo ())
- count--;
- else
- {
- ding ();
- break;
- }
- }
- return 0;
-}
-\f
/* **************************************************************** */
/* */
/* History Utilities */
/* **************************************************************** */
/* We already have a history library, and that is what we use to control
- the history features of readline. However, this is our local interface
- to the history mechanism. */
+ the history features of readline. This is our local interface to
+ the history mechanism. */
/* While we are editing the history, this is the saved
version of the original line. */
HIST_ENTRY *saved_line_for_history = (HIST_ENTRY *)NULL;
/* Set the history pointer back to the last entry in the history. */
+static void
start_using_history ()
{
using_history ();
if (saved_line_for_history)
- free_history_entry (saved_line_for_history);
+ _rl_free_history_entry (saved_line_for_history);
saved_line_for_history = (HIST_ENTRY *)NULL;
- return 0;
}
/* Free the contents (and containing structure) of a HIST_ENTRY. */
void
-free_history_entry (entry)
+_rl_free_history_entry (entry)
HIST_ENTRY *entry;
{
- if (!entry)
+ if (entry == 0)
return;
if (entry->line)
free (entry->line);
}
/* Perhaps put back the current line if it has changed. */
+int
maybe_replace_line ()
{
- HIST_ENTRY *temp = current_history ();
+ HIST_ENTRY *temp;
+ temp = current_history ();
/* If the current line has changed, save the changes. */
if (temp && ((UNDO_LIST *)(temp->data) != rl_undo_list))
{
- temp = replace_history_entry (where_history (), the_line, rl_undo_list);
+ temp = replace_history_entry (where_history (), the_line, (histdata_t)rl_undo_list);
free (temp->line);
free (temp);
}
}
/* Put back the saved_line_for_history if there is one. */
+int
maybe_unsave_line ()
{
+ int line_len;
+
if (saved_line_for_history)
{
- int line_len;
-
line_len = strlen (saved_line_for_history->line);
if (line_len >= rl_line_buffer_len)
strcpy (the_line, saved_line_for_history->line);
rl_undo_list = (UNDO_LIST *)saved_line_for_history->data;
- free_history_entry (saved_line_for_history);
+ _rl_free_history_entry (saved_line_for_history);
saved_line_for_history = (HIST_ENTRY *)NULL;
rl_end = rl_point = strlen (the_line);
}
}
/* Save the current line in saved_line_for_history. */
+int
maybe_save_line ()
{
- if (!saved_line_for_history)
+ if (saved_line_for_history == 0)
{
saved_line_for_history = (HIST_ENTRY *)xmalloc (sizeof (HIST_ENTRY));
saved_line_for_history->line = savestring (the_line);
}
return 0;
}
-\f
+
/* **************************************************************** */
/* */
/* History Commands */
/* **************************************************************** */
/* Meta-< goes to the start of the history. */
-rl_beginning_of_history ()
+int
+rl_beginning_of_history (count, key)
+ int count, key;
{
- return (rl_get_previous_history (1 + where_history ()));
+ return (rl_get_previous_history (1 + where_history (), key));
}
/* Meta-> goes to the end of the history. (The current line). */
-rl_end_of_history ()
+int
+rl_end_of_history (count, key)
+ int count, key;
{
maybe_replace_line ();
using_history ();
}
/* Move down to the next history line. */
-rl_get_next_history (count)
- int count;
+int
+rl_get_next_history (count, key)
+ int count, key;
{
- HIST_ENTRY *temp = (HIST_ENTRY *)NULL;
+ HIST_ENTRY *temp;
+ int line_len;
if (count < 0)
- return (rl_get_previous_history (-count));
+ return (rl_get_previous_history (-count, key));
- if (!count)
+ if (count == 0)
return 0;
maybe_replace_line ();
+ temp = (HIST_ENTRY *)NULL;
while (count)
{
temp = next_history ();
--count;
}
- if (!temp)
+ if (temp == 0)
maybe_unsave_line ();
else
{
- int line_len;
-
line_len = strlen (temp->line);
if (line_len >= rl_line_buffer_len)
/* Get the previous item out of our interactive history, making it the current
line. If there is no previous history, just ding. */
-rl_get_previous_history (count)
- int count;
+int
+rl_get_previous_history (count, key)
+ int count, key;
{
- HIST_ENTRY *old_temp = (HIST_ENTRY *)NULL;
- HIST_ENTRY *temp = (HIST_ENTRY *)NULL;
+ HIST_ENTRY *old_temp, *temp;
+ int line_len;
if (count < 0)
- return (rl_get_next_history (-count));
+ return (rl_get_next_history (-count, key));
- if (!count)
+ if (count == 0)
return 0;
/* If we don't have a line saved, then save this one. */
/* If the current line has changed, save the changes. */
maybe_replace_line ();
+ temp = old_temp = (HIST_ENTRY *)NULL;
while (count)
{
temp = previous_history ();
- if (!temp)
+ if (temp == 0)
break;
- else
- old_temp = temp;
+
+ old_temp = temp;
--count;
}
if (!temp && old_temp)
temp = old_temp;
- if (!temp)
+ if (temp == 0)
ding ();
else
{
- int line_len;
-
line_len = strlen (temp->line);
if (line_len >= rl_line_buffer_len)
return 0;
}
-/* Make C be the next command to be executed. */
-rl_execute_next (c)
- int c;
-{
- rl_pending_input = c;
- return 0;
-}
-
/* **************************************************************** */
/* */
/* The Mark and the Region. */
/* **************************************************************** */
/* Set the mark at POSITION. */
-rl_set_mark (position)
+int
+_rl_set_mark_at_pos (position)
int position;
{
if (position > rl_end)
return 0;
}
+/* A bindable command to set the mark. */
+int
+rl_set_mark (count, key)
+ int count, key;
+{
+ return (_rl_set_mark_at_pos (rl_explicit_arg ? count : rl_point));
+}
+
/* Exchange the position of mark and point. */
-rl_exchange_mark_and_point ()
+int
+rl_exchange_point_and_mark (count, key)
+ int count, key;
{
if (rl_mark > rl_end)
rl_mark = -1;
return -1;
}
else
- {
- int temp = rl_point;
-
- rl_point = rl_mark;
- rl_mark = temp;
- }
- return 0;
-}
-
-\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;
-
-/* How many slots we have in the kill ring. */
-int rl_kill_ring_length = 0;
-
-/* How to say that you only want to save a certain amount
- of kill material. */
-rl_set_retained_kills (num)
- int num;
-{
- return 0;
-}
-
-/* The way to kill something. This appends or prepends to the last
- kill, if the last command was a kill command. if FROM is less
- than TO, then the text is appended, otherwise prepended. If the
- last command was not a kill command, then a new slot is made for
- this kill. */
-rl_kill_text (from, to)
- int from, to;
-{
- int slot;
- char *text = rl_copy_text (from, to);
-
- /* Is there anything to kill? */
- if (from == to)
- {
- free (text);
- last_command_was_kill++;
- return 0;
- }
-
- /* Delete the copied text from the line. */
- rl_delete_text (from, to);
-
- /* First, find the slot to work with. */
- if (!last_command_was_kill)
- {
- /* Get a new slot. */
- if (!rl_kill_ring)
- {
- /* If we don't have any defined, then make one. */
- rl_kill_ring = (char **)
- xmalloc (((rl_kill_ring_length = 1) + 1) * sizeof (char *));
- slot = 1;
- }
- else
- {
- /* We have to add a new slot on the end, unless we have
- exceeded the max limit for remembering kills. */
- slot = rl_kill_ring_length;
- if (slot == rl_max_kills)
- {
- register int i;
- free (rl_kill_ring[0]);
- for (i = 0; i < slot; i++)
- rl_kill_ring[i] = rl_kill_ring[i + 1];
- }
- else
- {
- rl_kill_ring =
- (char **)
- xrealloc (rl_kill_ring,
- ((slot = (rl_kill_ring_length += 1)) + 1)
- * sizeof (char *));
- }
- }
- slot--;
- }
- else
- {
- slot = rl_kill_ring_length - 1;
- }
-
- /* If the last command was a kill, prepend or append. */
- if (last_command_was_kill && rl_editing_mode != vi_mode)
- {
- char *old = rl_kill_ring[slot];
- char *new = (char *)xmalloc (1 + strlen (old) + strlen (text));
+ SWAP (rl_point, rl_mark);
- if (from < to)
- {
- strcpy (new, old);
- strcat (new, text);
- }
- else
- {
- strcpy (new, text);
- strcat (new, old);
- }
- free (old);
- free (text);
- rl_kill_ring[slot] = new;
- }
- else
- {
- rl_kill_ring[slot] = text;
- }
- rl_kill_index = slot;
- last_command_was_kill++;
return 0;
}
-/* Now REMEMBER! In order to do prepending or appending correctly, kill
- commands always make rl_point's original position be the FROM argument,
- and rl_point's extent be the TO argument. */
-
/* **************************************************************** */
/* */
-/* Killing Commands */
+/* Editing Modes */
/* */
/* **************************************************************** */
-
-/* Delete the word at point, saving the text in the kill ring. */
-rl_kill_word (count)
- int count;
-{
- int orig_point = rl_point;
-
- if (count < 0)
- return (rl_backward_kill_word (-count));
- else
- {
- rl_forward_word (count);
-
- if (rl_point != orig_point)
- rl_kill_text (orig_point, rl_point);
-
- rl_point = orig_point;
- }
- return 0;
-}
-
-/* Rubout the word before point, placing it on the kill ring. */
-rl_backward_kill_word (count)
- int count;
-{
- int orig_point = rl_point;
-
- if (count < 0)
- return (rl_kill_word (-count));
- else
- {
- rl_backward_word (count);
-
- if (rl_point != orig_point)
- rl_kill_text (orig_point, rl_point);
- }
-}
-
-/* Kill from here to the end of the line. If DIRECTION is negative, kill
- back to the line start instead. */
-rl_kill_line (direction)
- int direction;
-{
- int orig_point = rl_point;
-
- if (direction < 0)
- return (rl_backward_kill_line (1));
- else
- {
- rl_end_of_line ();
- if (orig_point != rl_point)
- rl_kill_text (orig_point, rl_point);
- rl_point = orig_point;
- }
- return 0;
-}
-
-/* Kill backwards to the start of the line. If DIRECTION is negative, kill
- forwards to the line end instead. */
-rl_backward_kill_line (direction)
- int direction;
-{
- int orig_point = rl_point;
-
- if (direction < 0)
- return (rl_kill_line (1));
- else
- {
- if (!rl_point)
- ding ();
- else
- {
- rl_beg_of_line ();
- rl_kill_text (orig_point, rl_point);
- }
- }
- return 0;
-}
-
-/* Yank back the last killed text. This ignores arguments. */
-rl_yank ()
-{
- if (!rl_kill_ring)
- {
- rl_abort ();
- return -1;
- }
-
- rl_set_mark (rl_point);
- rl_insert_text (rl_kill_ring[rl_kill_index]);
- return 0;
-}
-
-/* If the last command was yank, or yank_pop, and the text just
- before point is identical to the current kill item, then
- delete that text from the line, rotate the index down, and
- yank back some other text. */
-rl_yank_pop ()
-{
- int l;
-
- if (((rl_last_func != rl_yank_pop) && (rl_last_func != rl_yank)) ||
- !rl_kill_ring)
- {
- rl_abort ();
- return -1;
- }
-
- l = strlen (rl_kill_ring[rl_kill_index]);
- if (((rl_point - l) >= 0) &&
- (strncmp (the_line + (rl_point - l),
- rl_kill_ring[rl_kill_index], l) == 0))
- {
- rl_delete_text ((rl_point - l), rl_point);
- rl_point -= l;
- rl_kill_index--;
- if (rl_kill_index < 0)
- rl_kill_index = rl_kill_ring_length - 1;
- rl_yank ();
- return 0;
- }
- else
- {
- rl_abort ();
- return -1;
- }
-}
-
-/* Yank the COUNTth argument from the previous history line. */
-rl_yank_nth_arg (count, ignore)
- int count;
-{
- register HIST_ENTRY *entry = previous_history ();
- char *arg;
-
- if (entry)
- next_history ();
- else
- {
- ding ();
- return -1;
- }
-
- arg = history_arg_extract (count, count, entry->line);
- if (!arg || !*arg)
- {
- ding ();
- return -1;
- }
-
- rl_begin_undo_group ();
-
-#if defined (VI_MODE)
- /* 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++;
-#endif /* VI_MODE */
-
-#if 0
- if (rl_point && the_line[rl_point - 1] != ' ')
- rl_insert_text (" ");
-#endif
-
- rl_insert_text (arg);
- free (arg);
-
- rl_end_undo_group ();
- return 0;
-}
-
/* How to toggle back and forth between editing modes. */
-rl_vi_editing_mode ()
+int
+rl_vi_editing_mode (count, key)
+ int count, key;
{
#if defined (VI_MODE)
rl_editing_mode = vi_mode;
- rl_vi_insertion_mode ();
- return 0;
+ rl_vi_insertion_mode (1, key);
#endif /* VI_MODE */
+ return 0;
}
-rl_emacs_editing_mode ()
+int
+rl_emacs_editing_mode (count, key)
+ int count, key;
{
rl_editing_mode = emacs_mode;
_rl_keymap = emacs_standard_keymap;
return 0;
}
-
-\f
-/* **************************************************************** */
-/* */
-/* USG (System V) Support */
-/* */
-/* **************************************************************** */
-
-int
-rl_getc (stream)
- FILE *stream;
-{
- int result;
- unsigned char c;
-
-#if defined (__GO32__)
- if (isatty (0))
- return (getkey ());
-#endif /* __GO32__ */
-
- while (1)
- {
- result = read (fileno (stream), &c, sizeof (unsigned char));
-
- if (result == sizeof (unsigned 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);
-
-#if defined (EWOULDBLOCK)
- if (errno == EWOULDBLOCK)
- {
- int flags;
-
- if ((flags = fcntl (fileno (stream), F_GETFL, 0)) < 0)
- return (EOF);
- if (flags & O_NDELAY)
- {
- flags &= ~O_NDELAY;
- fcntl (fileno (stream), F_SETFL, flags);
- continue;
- }
- continue;
- }
-#endif /* EWOULDBLOCK */
-
-#if defined (_POSIX_VERSION) && defined (EAGAIN) && defined (O_NONBLOCK)
- if (errno == EAGAIN)
- {
- int flags;
-
- if ((flags = fcntl (fileno (stream), F_GETFL, 0)) < 0)
- return (EOF);
- if (flags & O_NONBLOCK)
- {
- flags &= ~O_NONBLOCK;
- fcntl (fileno (stream), F_SETFL, flags);
- continue;
- }
- }
-#endif /* _POSIX_VERSION && EAGAIN && O_NONBLOCK */
-
-#if !defined (__GO32__)
- /* If the error that we received was SIGINT, then try again,
- this is simply an interrupted system call to read ().
- Otherwise, some error ocurred, also signifying EOF. */
- if (errno != EINTR)
- return (EOF);
-#endif /* !__GO32__ */
- }
-}
-
-char *
-_rl_savestring (str)
- char *str;
-{
- char *copy = (char*) xmalloc (strlen (str) + 1);
- strcpy (copy, str);
- return copy;
-}
-
-#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 */
-
-\f
-/* **************************************************************** */
-/* */
-/* Testing Readline */
-/* */
-/* **************************************************************** */
-
-#if defined (TEST)
-
-main ()
-{
- HIST_ENTRY **history_list ();
- char *temp = (char *)NULL;
- char *prompt = "readline% ";
- int done = 0;
-
- while (!done)
- {
- temp = readline (prompt);
-
- /* Test for EOF. */
- if (!temp)
- exit (1);
-
- /* If there is anything on the line, print it and remember it. */
- if (*temp)
- {
- fprintf (stderr, "%s\r\n", temp);
- add_history (temp);
- }
-
- /* Check for `command' that we handle. */
- if (strcmp (temp, "quit") == 0)
- done = 1;
-
- if (strcmp (temp, "list") == 0)
- {
- HIST_ENTRY **list = history_list ();
- register int i;
- if (list)
- {
- for (i = 0; list[i]; i++)
- {
- fprintf (stderr, "%d: %s\r\n", i, list[i]->line);
- free (list[i]->line);
- }
- free (list);
- }
- }
- free (temp);
- }
-}
-
-#endif /* TEST */
-
-\f
-/*
- * Local variables:
- * compile-command: "gcc -g -traditional -I. -I.. -DTEST -o readline readline.c keymaps.o funmap.o history.o -ltermcap"
- * end:
- */
projects / deliverable / binutils-gdb.git / blobdiff