/* complete.c -- filename completion for readline. */
-/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2005 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
+ as published by the Free Software Foundation; either version 2, or
(at your option) any later version.
The GNU Readline Library is distributed in the hope that it will be
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. */
+ 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+#define READLINE_LIBRARY
-#include "sysdep.h"
-#include <stdio.h>
+#if defined (HAVE_CONFIG_H)
+# include <config.h>
+#endif
+
+#include <sys/types.h>
#include <fcntl.h>
-#if !defined (NO_SYS_FILE)
+#if defined (HAVE_SYS_FILE_H)
# include <sys/file.h>
-#endif /* !NO_SYS_FILE */
+#endif
+
+#if defined (HAVE_UNISTD_H)
+# include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+# include <stdlib.h>
+#else
+# include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <stdio.h>
#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. */
-#if !defined(__MSDOS__) && !defined(_MSC_VER)
+#if defined (HAVE_PWD_H)
#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
-/* Included by <fcntl.h> on some systems, but not SCO, so include it here. */
-#include <sys/stat.h>
+#include "posixdir.h"
+#include "posixstat.h"
/* System-specific feature definitions and include files. */
#include "rldefs.h"
+#include "rlmbutil.h"
/* Some standard library routines. */
#include "readline.h"
+#include "xmalloc.h"
+#include "rlprivate.h"
-/* Possible values for do_replace in rl_complete_internal. */
-#define NO_MATCH 0
-#define SINGLE_MATCH 1
-#define MULT_MATCH 2
-
-#if !defined (strchr) && !defined (__STDC__)
-extern char *strchr (), *strrchr ();
-#endif /* !strchr && !__STDC__ */
-
-extern char *tilde_expand ();
-extern char *rl_copy_text ();
+#ifdef __STDC__
+typedef int QSFUNC (const void *, const void *);
+#else
+typedef int QSFUNC ();
+#endif
-extern Function *rl_last_func;
-extern int rl_editing_mode;
-extern int screenwidth;
+#ifdef HAVE_LSTAT
+# define LSTAT lstat
+#else
+# define LSTAT stat
+#endif
-/* Forward declarations for functions defined and used in this file. */
-char *filename_completion_function ();
-char **completion_matches ();
+/* Unix version of a hidden file. Could be different on other systems. */
+#define HIDDEN_FILE(fname) ((fname)[0] == '.')
-static int compare_strings ();
-static char *rl_strpbrk ();
+/* Most systems don't declare getpwent in <pwd.h> if _POSIX_SOURCE is
+ defined. */
+#if defined (HAVE_GETPWENT) && (!defined (HAVE_GETPW_DECLS) || defined (_POSIX_SOURCE))
+extern struct passwd *getpwent PARAMS((void));
+#endif /* HAVE_GETPWENT && (!HAVE_GETPW_DECLS || _POSIX_SOURCE) */
-#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
+ completing a word would normally display the list of possible matches.
+ This function is called instead of actually doing the display.
+ It takes three arguments: (char **matches, int num_matches, int max_length)
+ where MATCHES is the array of strings that matched, NUM_MATCHES is the
+ number of strings in that array, and MAX_LENGTH is the length of the
+ longest string in that array. */
+rl_compdisp_func_t *rl_completion_display_matches_hook = (rl_compdisp_func_t *)NULL;
#if defined (VISIBLE_STATS)
# if !defined (X_OK)
# define X_OK 1
# endif
+static int stat_char PARAMS((char *));
+#endif
-static int stat_char ();
+static int path_isdir PARAMS((const 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 */
+static char *rl_quote_filename PARAMS((char *, int, char *));
+
+static void set_completion_defaults PARAMS((int));
+static int get_y_or_n PARAMS((int));
+static int _rl_internal_pager PARAMS((int));
+static char *printable_part PARAMS((char *));
+static int fnwidth PARAMS((const char *));
+static int fnprint PARAMS((const char *));
+static int print_filename PARAMS((char *, char *));
+
+static char **gen_completion_matches PARAMS((char *, int, int, rl_compentry_func_t *, int, int));
+
+static char **remove_duplicate_matches PARAMS((char **));
+static void insert_match PARAMS((char *, int, int, char *));
+static int append_to_match PARAMS((char *, int, int, int));
+static void insert_all_matches PARAMS((char **, int, char *));
+static void display_matches PARAMS((char **));
+static int compute_lcd_of_matches PARAMS((char **, int, const char *));
+static int postprocess_matches PARAMS((char ***, int));
+
+static char *make_quoted_replacement PARAMS((char *, int, char *));
/* **************************************************************** */
/* */
/* */
/* **************************************************************** */
+/* Variables known only to the readline library. */
+
+/* If non-zero, non-unique completions always show the list of matches. */
+int _rl_complete_show_all = 0;
+
+/* If non-zero, non-unique completions show the list of matches, unless it
+ is not possible to do partial completion and modify the line. */
+int _rl_complete_show_unmodified = 0;
+
+/* If non-zero, completed directory names have a slash appended. */
+int _rl_complete_mark_directories = 1;
+
+/* If non-zero, the symlinked directory completion behavior introduced in
+ readline-4.2a is disabled, and symlinks that point to directories have
+ a slash appended (subject to the value of _rl_complete_mark_directories).
+ This is user-settable via the mark-symlinked-directories variable. */
+int _rl_complete_mark_symlink_dirs = 0;
+
+/* If non-zero, completions are printed horizontally in alphabetical order,
+ like `ls -x'. */
+int _rl_print_completions_horizontally;
+
+/* Non-zero means that case is not significant in filename completion. */
+#if defined (__MSDOS__) && !defined (__DJGPP__)
+int _rl_completion_case_fold = 1;
+#else
+int _rl_completion_case_fold;
+#endif
+
+/* If non-zero, don't match hidden files (filenames beginning with a `.' on
+ Unix) when doing filename completion. */
+int _rl_match_hidden_files = 1;
+
+/* Global variables available to applications using readline. */
+
+#if defined (VISIBLE_STATS)
+/* 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 */
+
+/* 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. */
+rl_icppfunc_t *rl_directory_completion_hook = (rl_icppfunc_t *)NULL;
+
+rl_icppfunc_t *rl_directory_rewrite_hook = (rl_icppfunc_t *)NULL;
+
+/* Non-zero means readline completion functions perform tilde expansion. */
+int rl_complete_with_tilde_expansion = 0;
+
/* Pointer to the generator function for completion_matches ().
- NULL means to use filename_entry_function (), the default filename
+ NULL means to use rl_filename_completion_function (), the default filename
completer. */
-Function *rl_completion_entry_function = (Function *)NULL;
+rl_compentry_func_t *rl_completion_entry_function = (rl_compentry_func_t *)NULL;
/* Pointer to alternative function to create matches.
Function is called with TEXT, START, and END.
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. */
-CPPFunction *rl_attempted_completion_function = (CPPFunction *)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_completion_func_t *rl_attempted_completion_function = (rl_completion_func_t *)NULL;
-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)
- int ignore, invoking_key;
-{
- rl_complete_internal ('?');
-}
-
-rl_insert_completions (ignore, invoking_key)
- int ignore, invoking_key;
-{
- rl_complete_internal ('*');
-}
+/* Non-zero means to suppress normal filename completion after the
+ user-specified completion function has been called. */
+int rl_attempted_completion_over = 0;
-/* 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 ();
- }
-}
+/* Set to a character indicating the type of completion being performed
+ by rl_complete_internal, available for use by application completion
+ functions. */
+int rl_completion_type = 0;
/* 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. */
+ she is sure she wants to see them all. A negative value means
+ don't ask. */
int rl_completion_query_items = 100;
+int _rl_page_completions = 1;
+
/* 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\"\\'`@$><=" */
-char *rl_basic_word_break_characters = " \t\n\"\\'`@$><=;|&{(";
+const char *rl_basic_word_break_characters = " \t\n\"\\'`@$><=;|&{("; /* }) */
+
+/* List of basic quoting characters. */
+const char *rl_basic_quote_characters = "\"'";
/* 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;
+/*const*/ char *rl_completer_word_break_characters = (/*const*/ char *)NULL;
+
+/* Hook function to allow an application to set the completion word
+ break characters before readline breaks up the line. Allows
+ position-dependent word break characters. */
+rl_cpvfunc_t *rl_completion_word_break_hook = (rl_cpvfunc_t *)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;
+const char *rl_completer_quote_characters = (const char *)NULL;
+
+/* List of characters that should be quoted in filenames by the completer. */
+const char *rl_filename_quote_characters = (const 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;
+const char *rl_special_prefixes = (const char *)NULL;
/* If non-zero, then disallow duplicates in the matches. */
int rl_ignore_completion_duplicates = 1;
within a completion entry finder function. */
int rl_filename_completion_desired = 0;
+/* Non-zero means that the results of the matches are to be quoted using
+ double quotes (or an application-specific quoting mechanism) if the
+ filename contains any characters in rl_filename_quote_chars. This is
+ ALWAYS non-zero on entry, and can only be changed within a completion
+ entry finder function. */
+int rl_filename_quoting_desired = 1;
+
/* 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.
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;
+rl_compignore_func_t *rl_ignore_some_completions_function = (rl_compignore_func_t *)NULL;
+
+/* Set to a function to quote a filename in an application-specific fashion.
+ Called with the text to quote, the type of match found (single or multiple)
+ and a pointer to the quoting character to be used, which the function can
+ reset if desired. */
+rl_quote_func_t *rl_filename_quoting_function = rl_quote_filename;
+
+/* Function to call to remove quoting characters from a filename. Called
+ before completion is attempted, so the embedded quotes do not interfere
+ with matching names in the file system. Readline doesn't do anything
+ with this; it's set only by applications. */
+rl_dequote_func_t *rl_filename_dequoting_function = (rl_dequote_func_t *)NULL;
+
+/* Function to call to decide whether or not a word break character is
+ quoted. If a character is quoted, it does not break words for the
+ completer. */
+rl_linebuf_func_t *rl_char_is_quoted_p = (rl_linebuf_func_t *)NULL;
+
+/* If non-zero, the completion functions don't append anything except a
+ possible closing quote. This is set to 0 by rl_complete_internal and
+ may be changed by an application-specific completion function. */
+int rl_completion_suppress_append = 0;
+
+/* Character appended to completed words when at the end of the line. The
+ default is a space. */
+int rl_completion_append_character = ' ';
+
+/* If non-zero, the completion functions don't append any closing quote.
+ This is set to 0 by rl_complete_internal and may be changed by an
+ application-specific completion function. */
+int rl_completion_suppress_quote = 0;
+
+/* Set to any quote character readline thinks it finds before any application
+ completion function is called. */
+int rl_completion_quote_character;
+
+/* Set to a non-zero value if readline found quoting anywhere in the word to
+ be completed; set before any application completion function is called. */
+int rl_completion_found_quote;
+
+/* If non-zero, a slash will be appended to completed filenames that are
+ symbolic links to directory names, subject to the value of the
+ mark-directories variable (which is user-settable). This exists so
+ that application completion functions can override the user's preference
+ (set via the mark-symlinked-directories variable) if appropriate.
+ It's set to the value of _rl_complete_mark_symlink_dirs in
+ rl_complete_internal before any application-specific completion
+ function is called, so without that function doing anything, the user's
+ preferences are honored. */
+int rl_completion_mark_symlink_dirs;
+
+/* If non-zero, inhibit completion (temporarily). */
+int rl_inhibit_completion;
+
+/* Variables local to this file. */
-#if defined (SHELL)
-/* A function to strip quotes that are not protected by backquotes. It
- allows single quotes to appear within double quotes, and vice versa.
- It should be smarter. It's fairly shell-specific, hence the SHELL
- definition wrapper. */
-static char *
-_delete_quotes (text)
- char *text;
+/* Local variable states what happened during the last completion attempt. */
+static int completion_changed_buffer;
+
+/*************************************/
+/* */
+/* Bindable completion functions */
+/* */
+/*************************************/
+
+/* Complete the word at or before point. You have supplied the function
+ that does the initial simple matching selection algorithm (see
+ rl_completion_matches ()). The default is to do filename completion. */
+int
+rl_complete (ignore, invoking_key)
+ int ignore, invoking_key;
{
- char *ret, *p, *r;
- int l, quoted;
+ if (rl_inhibit_completion)
+ return (_rl_insert_char (ignore, invoking_key));
+ else if (rl_last_func == rl_complete && !completion_changed_buffer)
+ return (rl_complete_internal ('?'));
+ else if (_rl_complete_show_all)
+ return (rl_complete_internal ('!'));
+ else if (_rl_complete_show_unmodified)
+ return (rl_complete_internal ('@'));
+ else
+ return (rl_complete_internal (TAB));
+}
- l = strlen (text);
- ret = xmalloc (l + 1);
- for (quoted = 0, p = text, r = ret; p && *p; p++)
- {
- /* Allow backslash-quoted characters to pass through unscathed. */
- if (*p == '\\')
- continue;
- /* Close quote. */
- if (quoted && *p == quoted)
- {
- quoted = 0;
- continue;
- }
- /* Open quote. */
- if (quoted == 0 && (*p == '\'' || *p == '"'))
- {
- quoted = *p;
- continue;
- }
- *r++ = *p;
- }
- *r = '\0';
- return ret;
+/* List the possible completions. See description of rl_complete (). */
+int
+rl_possible_completions (ignore, invoking_key)
+ int ignore, invoking_key;
+{
+ return (rl_complete_internal ('?'));
}
-#endif /* SHELL */
-/* 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;
+int
+rl_insert_completions (ignore, invoking_key)
+ int ignore, invoking_key;
{
- char **matches;
- Function *our_func;
- int start, scan, end, delimiter = 0, pass_next;
- char *text, *saved_line_buffer;
- char *replacement;
- char quote_char = '\0';
-#if defined (SHELL)
- int found_quote = 0;
-#endif
+ return (rl_complete_internal ('*'));
+}
- if (rl_line_buffer)
- saved_line_buffer = savestring (rl_line_buffer);
+/* Return the correct value to pass to rl_complete_internal performing
+ the same tests as rl_complete. This allows consecutive calls to an
+ application's completion function to list possible completions and for
+ an application-specific completion function to honor the
+ show-all-if-ambiguous readline variable. */
+int
+rl_completion_mode (cfunc)
+ rl_command_func_t *cfunc;
+{
+ if (rl_last_func == cfunc && !completion_changed_buffer)
+ return '?';
+ else if (_rl_complete_show_all)
+ return '!';
+ else if (_rl_complete_show_unmodified)
+ return '@';
else
- saved_line_buffer = (char *)NULL;
+ return TAB;
+}
- if (rl_completion_entry_function)
- our_func = rl_completion_entry_function;
- else
- our_func = (Function *)filename_completion_function;
+/************************************/
+/* */
+/* Completion utility functions */
+/* */
+/************************************/
- /* Only the completion entry function can change this. */
+/* Set default values for readline word completion. These are the variables
+ that application completion functions can change or inspect. */
+static void
+set_completion_defaults (what_to_do)
+ int what_to_do;
+{
+ /* Only the completion entry function can change these. */
rl_filename_completion_desired = 0;
+ rl_filename_quoting_desired = 1;
+ rl_completion_type = what_to_do;
+ rl_completion_suppress_append = rl_completion_suppress_quote = 0;
- /* We now look backwards for the start of a filename/variable word. */
- end = rl_point;
+ /* The completion entry function may optionally change this. */
+ rl_completion_mark_symlink_dirs = _rl_complete_mark_symlink_dirs;
+}
- 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. */
- /* FOUND_QUOTE is set so we know what kind of quotes we found. */
- for (scan = pass_next = 0; scan < end; scan++)
- {
- if (pass_next)
- {
- pass_next = 0;
- continue;
- }
+/* The user must press "y" or "n". Non-zero return means "y" pressed. */
+static int
+get_y_or_n (for_pager)
+ int for_pager;
+{
+ int c;
- if (rl_line_buffer[scan] == '\\')
- {
- pass_next = 1;
- continue;
- }
+ for (;;)
+ {
+ RL_SETSTATE(RL_STATE_MOREINPUT);
+ c = rl_read_key ();
+ RL_UNSETSTATE(RL_STATE_MOREINPUT);
- if (quote_char != '\0')
- {
- /* Ignore everything until the matching close quote char. */
- if (rl_line_buffer[scan] == quote_char)
- {
- /* Found matching close. 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 defined (SHELL)
- if (quote_char == '\'')
- found_quote |= 1;
- else if (quote_char == '"')
- found_quote |= 2;
-#endif
- }
- }
- }
+ if (c == 'y' || c == 'Y' || c == ' ')
+ return (1);
+ if (c == 'n' || c == 'N' || c == RUBOUT)
+ return (0);
+ if (c == ABORT_CHAR)
+ _rl_abort_internal ();
+ if (for_pager && (c == NEWLINE || c == RETURN))
+ return (2);
+ if (for_pager && (c == 'q' || c == 'Q'))
+ return (0);
+ rl_ding ();
+ }
+}
- if (rl_point == end)
- {
- int quoted = 0;
- /* We didn't find an unclosed quoted substring up which to do
- completion, so use the word break characters to find the
- substring on which to complete. */
- while (--rl_point)
- {
-#if defined (SHELL)
- /* Don't let word break characters in quoted substrings break
- words for the completer. */
- if (found_quote)
- {
- if (strchr (rl_completer_quote_characters, rl_line_buffer[rl_point]))
- {
- quoted = !quoted;
- continue;
- }
- if (quoted)
- continue;
- }
-#endif /* SHELL */
- if (strchr (rl_completer_word_break_characters, rl_line_buffer[rl_point]))
- break;
- }
- }
+static int
+_rl_internal_pager (lines)
+ int lines;
+{
+ int i;
+
+ fprintf (rl_outstream, "--More--");
+ fflush (rl_outstream);
+ i = get_y_or_n (1);
+ _rl_erase_entire_line ();
+ if (i == 0)
+ return -1;
+ else if (i == 2)
+ return (lines - 1);
+ else
+ return 0;
+}
- /* 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];
+static int
+path_isdir (filename)
+ const char *filename;
+{
+ struct stat finfo;
- /* 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++;
- }
- }
+ return (stat (filename, &finfo) == 0 && S_ISDIR (finfo.st_mode));
+}
- /* At this point, we know we have an open quote if quote_char != '\0'. */
- start = rl_point;
- rl_point = end;
- text = rl_copy_text (start, end);
+#if defined (VISIBLE_STATS)
+/* Return the character which best describes FILENAME.
+ `@' for symbolic links
+ `/' for directories
+ `*' for executables
+ `=' for sockets
+ `|' for FIFOs
+ `%' for character special devices
+ `#' for block special devices */
+static int
+stat_char (filename)
+ char *filename;
+{
+ struct stat finfo;
+ int character, r;
- /* 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 = (*rl_attempted_completion_function) (text, start, end);
+#if defined (HAVE_LSTAT) && defined (S_ISLNK)
+ r = lstat (filename, &finfo);
+#else
+ r = stat (filename, &finfo);
+#endif
- if (matches)
- {
- /* XXX - This is questionable code. - XXX */
- if (matches == (char **)-1)
- matches = (char **)NULL;
- our_func = (Function *)NULL;
- goto after_usual_completion;
- }
- }
+ if (r == -1)
+ return (0);
-#if defined (SHELL)
- /* Beware -- we're stripping the quotes here. Do this only if we know
- we are doing filename completion. */
- if (found_quote && our_func == (Function *)filename_completion_function)
+ character = 0;
+ if (S_ISDIR (finfo.st_mode))
+ character = '/';
+#if defined (S_ISCHR)
+ else if (S_ISCHR (finfo.st_mode))
+ character = '%';
+#endif /* S_ISCHR */
+#if defined (S_ISBLK)
+ else if (S_ISBLK (finfo.st_mode))
+ character = '#';
+#endif /* S_ISBLK */
+#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 */
+#if defined (S_ISFIFO)
+ else if (S_ISFIFO (finfo.st_mode))
+ character = '|';
+#endif
+ else if (S_ISREG (finfo.st_mode))
{
- /* delete single and double quotes */
- replacement = _delete_quotes (text);
- free (text);
- text = replacement;
- replacement = (char *)0;
+ if (access (filename, X_OK) == 0)
+ character = '*';
}
-#endif /* SHELL */
+ return (character);
+}
+#endif /* VISIBLE_STATS */
- matches = completion_matches (text, our_func);
+/* Return the portion of PATHNAME that should be output when listing
+ possible completions. If we are hacking filename completion, we
+ are only interested in the basename, the portion following the
+ final slash. Otherwise, we return what we were passed. Since
+ printing empty strings is not very informative, if we're doing
+ filename completion, and the basename is the empty string, we look
+ for the previous slash and return the portion following that. If
+ there's no previous slash, we just return what we were passed. */
+static char *
+printable_part (pathname)
+ char *pathname;
+{
+ char *temp, *x;
- after_usual_completion:
- free (text);
+ if (rl_filename_completion_desired == 0) /* don't need to do anything */
+ return (pathname);
- if (!matches)
- ding ();
- else
+ temp = strrchr (pathname, '/');
+#if defined (__MSDOS__)
+ if (temp == 0 && ISALPHA ((unsigned char)pathname[0]) && pathname[1] == ':')
+ temp = pathname + 1;
+#endif
+
+ if (temp == 0 || *temp == '\0')
+ return (pathname);
+ /* If the basename is NULL, we might have a pathname like '/usr/src/'.
+ Look for a previous slash and, if one is found, return the portion
+ following that slash. If there's no previous slash, just return the
+ pathname we were passed. */
+ else if (temp[1] == '\0')
{
- register int i;
+ for (x = temp - 1; x > pathname; x--)
+ if (*x == '/')
+ break;
+ return ((*x == '/') ? x + 1 : pathname);
+ }
+ else
+ return ++temp;
+}
- /* It seems to me that in all the cases we handle we would like
- to ignore duplicate possiblilities. Scan for the text to
- insert being identical to the other completions. */
- if (rl_ignore_completion_duplicates)
- {
- char *lowest_common;
- int j, newlen = 0;
- char dead_slot;
+/* Compute width of STRING when displayed on screen by print_filename */
+static int
+fnwidth (string)
+ const char *string;
+{
+ int width, pos;
+#if defined (HANDLE_MULTIBYTE)
+ mbstate_t ps;
+ int left, w;
+ size_t clen;
+ wchar_t wc;
+
+ left = strlen (string) + 1;
+ memset (&ps, 0, sizeof (mbstate_t));
+#endif
- /* 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);
+ width = pos = 0;
+ while (string[pos])
+ {
+ if (CTRL_CHAR (*string) || *string == RUBOUT)
+ {
+ width += 2;
+ pos++;
+ }
+ else
+ {
+#if defined (HANDLE_MULTIBYTE)
+ clen = mbrtowc (&wc, string + pos, left - pos, &ps);
+ if (MB_INVALIDCH (clen))
+ {
+ width++;
+ pos++;
+ memset (&ps, 0, sizeof (mbstate_t));
+ }
+ else if (MB_NULLWCH (clen))
+ break;
+ else
+ {
+ pos += clen;
+ w = wcwidth (wc);
+ width += (w >= 0) ? w : 1;
+ }
+#else
+ width++;
+ pos++;
+#endif
+ }
+ }
- /* Remember the lowest common denominator for it may be unique. */
- lowest_common = savestring (matches[0]);
+ return width;
+}
+
+static int
+fnprint (to_print)
+ const char *to_print;
+{
+ int printed_len;
+ const char *s;
+#if defined (HANDLE_MULTIBYTE)
+ mbstate_t ps;
+ const char *end;
+ size_t tlen;
+ int width, w;
+ wchar_t wc;
+
+ end = to_print + strlen (to_print) + 1;
+ memset (&ps, 0, sizeof (mbstate_t));
+#endif
- for (i = 0; matches[i + 1]; i++)
+ printed_len = 0;
+ s = to_print;
+ while (*s)
+ {
+ if (CTRL_CHAR (*s))
+ {
+ putc ('^', rl_outstream);
+ putc (UNCTRL (*s), rl_outstream);
+ printed_len += 2;
+ s++;
+#if defined (HANDLE_MULTIBYTE)
+ memset (&ps, 0, sizeof (mbstate_t));
+#endif
+ }
+ else if (*s == RUBOUT)
+ {
+ putc ('^', rl_outstream);
+ putc ('?', rl_outstream);
+ printed_len += 2;
+ s++;
+#if defined (HANDLE_MULTIBYTE)
+ memset (&ps, 0, sizeof (mbstate_t));
+#endif
+ }
+ else
+ {
+#if defined (HANDLE_MULTIBYTE)
+ tlen = mbrtowc (&wc, s, end - s, &ps);
+ if (MB_INVALIDCH (tlen))
{
- if (strcmp (matches[i], matches[i + 1]) == 0)
- {
- free (matches[i]);
- matches[i] = (char *)&dead_slot;
- }
- else
- newlen++;
+ tlen = 1;
+ width = 1;
+ memset (&ps, 0, sizeof (mbstate_t));
}
+ else if (MB_NULLWCH (tlen))
+ break;
+ else
+ {
+ w = wcwidth (wc);
+ width = (w >= 0) ? w : 1;
+ }
+ fwrite (s, 1, tlen, rl_outstream);
+ s += tlen;
+ printed_len += width;
+#else
+ putc (*s, rl_outstream);
+ s++;
+ printed_len++;
+#endif
+ }
+ }
- /* We have marked all the dead slots with (char *)&dead_slot.
- 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 *)&dead_slot)
- temp_array[j++] = matches[i];
- }
+ return printed_len;
+}
- temp_array[j] = (char *)NULL;
+/* Output TO_PRINT to rl_outstream. If VISIBLE_STATS is defined and we
+ are using it, check for and output a single character for `special'
+ filenames. Return the number of characters we output. */
- if (matches[0] != (char *)&dead_slot)
- free (matches[0]);
+static int
+print_filename (to_print, full_pathname)
+ char *to_print, *full_pathname;
+{
+ int printed_len, extension_char, slen, tlen;
+ char *s, c, *new_full_pathname, *dn;
- free (matches);
+ extension_char = 0;
+ printed_len = fnprint (to_print);
- matches = temp_array;
- }
+#if defined (VISIBLE_STATS)
+ if (rl_filename_completion_desired && (rl_visible_stats || _rl_complete_mark_directories))
+#else
+ if (rl_filename_completion_desired && _rl_complete_mark_directories)
+#endif
+ {
+ /* If to_print != full_pathname, to_print is the basename of the
+ path passed. In this case, we try to expand the directory
+ name before checking for the stat character. */
+ if (to_print != full_pathname)
+ {
+ /* Terminate the directory name. */
+ c = to_print[-1];
+ to_print[-1] = '\0';
+
+ /* If setting the last slash in full_pathname to a NUL results in
+ full_pathname being the empty string, we are trying to complete
+ files in the root directory. If we pass a null string to the
+ bash directory completion hook, for example, it will expand it
+ to the current directory. We just want the `/'. */
+ if (full_pathname == 0 || *full_pathname == 0)
+ dn = "/";
+ else if (full_pathname[0] != '/')
+ dn = full_pathname;
+ else if (full_pathname[1] == 0)
+ dn = "//"; /* restore trailing slash to `//' */
+ else if (full_pathname[1] == '/' && full_pathname[2] == 0)
+ dn = "/"; /* don't turn /// into // */
+ else
+ dn = full_pathname;
+ s = tilde_expand (dn);
+ if (rl_directory_completion_hook)
+ (*rl_directory_completion_hook) (&s);
+
+ slen = strlen (s);
+ tlen = strlen (to_print);
+ new_full_pathname = (char *)xmalloc (slen + tlen + 2);
+ strcpy (new_full_pathname, s);
+ if (s[slen - 1] == '/')
+ slen--;
+ else
+ new_full_pathname[slen] = '/';
+ new_full_pathname[slen] = '/';
+ strcpy (new_full_pathname + slen + 1, to_print);
- /* Place the lowest common denominator back in [0]. */
- matches[0] = lowest_common;
+#if defined (VISIBLE_STATS)
+ if (rl_visible_stats)
+ extension_char = stat_char (new_full_pathname);
+ else
+#endif
+ if (path_isdir (new_full_pathname))
+ extension_char = '/';
- /* 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;
- }
+ free (new_full_pathname);
+ to_print[-1] = c;
+ }
+ else
+ {
+ s = tilde_expand (full_pathname);
+#if defined (VISIBLE_STATS)
+ if (rl_visible_stats)
+ extension_char = stat_char (s);
+ else
+#endif
+ if (path_isdir (s))
+ extension_char = '/';
}
- switch (what_to_do)
+ free (s);
+ if (extension_char)
{
- 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 == (Function *)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;
+ putc (extension_char, rl_outstream);
+ printed_len++;
+ }
+ }
- do_replace = NO_MATCH;
+ return printed_len;
+}
- /* If there is a single match, see if we need to quote it.
- This also checks whether the common prefix of several
- matches needs to be quoted. If the common prefix should
- not be checked, add !matches[1] to the if clause. */
- if (rl_strpbrk (matches[0], rl_completer_word_break_characters))
- do_replace = matches[1] ? MULT_MATCH : SINGLE_MATCH;
+static char *
+rl_quote_filename (s, rtype, qcp)
+ char *s;
+ int rtype;
+ char *qcp;
+{
+ char *r;
+
+ r = (char *)xmalloc (strlen (s) + 2);
+ *r = *rl_completer_quote_characters;
+ strcpy (r + 1, s);
+ if (qcp)
+ *qcp = *rl_completer_quote_characters;
+ return r;
+}
- if (do_replace != NO_MATCH)
- {
-#if defined (SHELL)
- /* XXX - experimental */
- /* Quote the replacement, since we found an
- embedded word break character in a potential
- match. */
- char *rtext, *mtext;
- int rlen;
- extern char *double_quote (); /* in builtins/common.c */
-
- /* If DO_REPLACE == MULT_MATCH, it means that there is
- more than one match. In this case, we do not add
- the closing quote or attempt to perform tilde
- expansion. If DO_REPLACE == SINGLE_MATCH, we try
- to perform tilde expansion, because double quotes
- inhibit tilde expansion by the shell. */
-
- mtext = matches[0];
- if (mtext[0] == '~' && do_replace == SINGLE_MATCH)
- mtext = tilde_expand (matches[0]);
- rtext = double_quote (mtext);
- if (mtext != matches[0])
- free (mtext);
-
- rlen = strlen (rtext);
- replacement = (char *)alloca (rlen + 1);
- strcpy (replacement, rtext);
- if (do_replace == MULT_MATCH)
- replacement[rlen - 1] = '\0';
- 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 */
- }
+/* Find the bounds of the current word for completion purposes, and leave
+ rl_point set to the end of the word. This function skips quoted
+ substrings (characters between matched pairs of characters in
+ rl_completer_quote_characters). First we try to find an unclosed
+ quoted substring on which to do matching. If one is not found, we use
+ the word break characters to find the boundaries of the current word.
+ We call an application-specific function to decide whether or not a
+ particular word break character is quoted; if that function returns a
+ non-zero result, the character does not break a word. This function
+ returns the opening quote character if we found an unclosed quoted
+ substring, '\0' otherwise. FP, if non-null, is set to a value saying
+ which (shell-like) quote characters we found (single quote, double
+ quote, or backslash) anywhere in the string. DP, if non-null, is set to
+ the value of the delimiter character that caused a word break. */
+
+char
+_rl_find_completion_word (fp, dp)
+ int *fp, *dp;
+{
+ int scan, end, found_quote, delimiter, pass_next, isbrk;
+ char quote_char, *brkchars;
+
+ end = rl_point;
+ found_quote = delimiter = 0;
+ quote_char = '\0';
+
+ brkchars = 0;
+ if (rl_completion_word_break_hook)
+ brkchars = (*rl_completion_word_break_hook) ();
+ if (brkchars == 0)
+ brkchars = rl_completer_word_break_characters;
+
+ 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. */
+ /* FOUND_QUOTE is set so we know what kind of quotes we found. */
+ for (scan = pass_next = 0; scan < end; scan = MB_NEXTCHAR (rl_line_buffer, scan, 1, MB_FIND_ANY))
+ {
+ if (pass_next)
+ {
+ pass_next = 0;
+ continue;
}
- if (replacement)
+ /* Shell-like semantics for single quotes -- don't allow backslash
+ to quote anything in single quotes, especially not the closing
+ quote. If you don't like this, take out the check on the value
+ of quote_char. */
+ if (quote_char != '\'' && rl_line_buffer[scan] == '\\')
{
- rl_delete_text (start, rl_point);
- rl_point = start;
- rl_insert_text (replacement);
+ pass_next = 1;
+ found_quote |= RL_QF_BACKSLASH;
+ continue;
}
- /* 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 (quote_char != '\0')
{
- if (rl_editing_mode != vi_mode)
- ding (); /* There are other matches remaining. */
+ /* Ignore everything until the matching close quote char. */
+ if (rl_line_buffer[scan] == quote_char)
+ {
+ /* Found matching close. Abandon this substring. */
+ quote_char = '\0';
+ rl_point = end;
+ }
}
- else
+ else if (strchr (rl_completer_quote_characters, rl_line_buffer[scan]))
{
- char temp_string[4];
- int temp_string_index = 0;
+ /* Found start of a quoted substring. */
+ quote_char = rl_line_buffer[scan];
+ rl_point = scan + 1;
+ /* Shell-like quoting conventions. */
+ if (quote_char == '\'')
+ found_quote |= RL_QF_SINGLE_QUOTE;
+ else if (quote_char == '"')
+ found_quote |= RL_QF_DOUBLE_QUOTE;
+ else
+ found_quote |= RL_QF_OTHER_QUOTE;
+ }
+ }
+ }
- if (quote_char)
- temp_string[temp_string_index++] = quote_char;
+ if (rl_point == end && quote_char == '\0')
+ {
+ /* 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 complete. */
+ while (rl_point = MB_PREVCHAR (rl_line_buffer, rl_point, MB_FIND_ANY))
+ {
+ scan = rl_line_buffer[rl_point];
- temp_string[temp_string_index++] = delimiter ? delimiter : ' ';
- temp_string[temp_string_index++] = '\0';
+ if (strchr (brkchars, scan) == 0)
+ continue;
- if (rl_filename_completion_desired)
- {
- struct stat finfo;
- char *filename = tilde_expand (matches[0]);
+ /* Call the application-specific function to tell us whether
+ this word break character is quoted and should be skipped. */
+ if (rl_char_is_quoted_p && found_quote &&
+ (*rl_char_is_quoted_p) (rl_line_buffer, rl_point))
+ continue;
- 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);
- }
- }
+ /* Convoluted code, but it avoids an n^2 algorithm with calls
+ to char_is_quoted. */
break;
+ }
+ }
+
+ /* If we are at an unquoted word break, then advance past it. */
+ scan = rl_line_buffer[rl_point];
+
+ /* If there is an application-specific function to say whether or not
+ a character is quoted and we found a quote character, let that
+ function decide whether or not a character is a word break, even
+ if it is found in rl_completer_word_break_characters. Don't bother
+ if we're at the end of the line, though. */
+ if (scan)
+ {
+ if (rl_char_is_quoted_p)
+ isbrk = (found_quote == 0 ||
+ (*rl_char_is_quoted_p) (rl_line_buffer, rl_point) == 0) &&
+ strchr (brkchars, scan) != 0;
+ else
+ isbrk = strchr (brkchars, scan) != 0;
+
+ if (isbrk)
+ {
+ /* If the character that caused the word break was a quoting
+ character, then remember it as the delimiter. */
+ if (rl_basic_quote_characters &&
+ strchr (rl_basic_quote_characters, scan) &&
+ (end - rl_point) > 1)
+ delimiter = scan;
+
+ /* 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 == 0 || strchr (rl_special_prefixes, scan) == 0)
+ rl_point++;
+ }
+ }
+
+ if (fp)
+ *fp = found_quote;
+ if (dp)
+ *dp = delimiter;
+
+ return (quote_char);
+}
+
+static char **
+gen_completion_matches (text, start, end, our_func, found_quote, quote_char)
+ char *text;
+ int start, end;
+ rl_compentry_func_t *our_func;
+ int found_quote, quote_char;
+{
+ char **matches, *temp;
- case '*':
- {
- int i = 1;
+ rl_completion_found_quote = found_quote;
+ rl_completion_quote_character = quote_char;
+
+ /* 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 = (*rl_attempted_completion_function) (text, start, end);
+
+ if (matches || rl_attempted_completion_over)
+ {
+ rl_attempted_completion_over = 0;
+ return (matches);
+ }
+ }
+
+ /* Beware -- we're stripping the quotes here. Do this only if we know
+ we are doing filename completion and the application has defined a
+ filename dequoting function. */
+ temp = (char *)NULL;
+
+ if (found_quote && our_func == rl_filename_completion_function &&
+ rl_filename_dequoting_function)
+ {
+ /* delete single and double quotes */
+ temp = (*rl_filename_dequoting_function) (text, quote_char);
+ text = temp; /* not freeing text is not a memory leak */
+ }
+
+ matches = rl_completion_matches (text, our_func);
+ FREE (temp);
+ return matches;
+}
+
+/* Filter out duplicates in MATCHES. This frees up the strings in
+ MATCHES. */
+static char **
+remove_duplicate_matches (matches)
+ char **matches;
+{
+ char *lowest_common;
+ int i, j, newlen;
+ char dead_slot;
+ char **temp_array;
+
+ /* Sort the items. */
+ for (i = 0; matches[i]; i++)
+ ;
+
+ /* Sort the array without matches[0], since we need it to
+ stay in place no matter what. */
+ if (i)
+ qsort (matches+1, i-1, sizeof (char *), (QSFUNC *)_rl_qsort_string_compare);
+
+ /* Remember the lowest common denominator for it may be unique. */
+ lowest_common = savestring (matches[0]);
+
+ for (i = newlen = 0; matches[i + 1]; i++)
+ {
+ if (strcmp (matches[i], matches[i + 1]) == 0)
+ {
+ free (matches[i]);
+ matches[i] = (char *)&dead_slot;
+ }
+ else
+ newlen++;
+ }
+
+ /* We have marked all the dead slots with (char *)&dead_slot.
+ Copy all the non-dead entries into a new array. */
+ temp_array = (char **)xmalloc ((3 + newlen) * sizeof (char *));
+ for (i = j = 1; matches[i]; i++)
+ {
+ if (matches[i] != (char *)&dead_slot)
+ temp_array[j++] = matches[i];
+ }
+ temp_array[j] = (char *)NULL;
+
+ if (matches[0] != (char *)&dead_slot)
+ free (matches[0]);
+
+ /* Place the lowest common denominator back in [0]. */
+ temp_array[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 (temp_array[0], temp_array[1]) == 0)
+ {
+ free (temp_array[1]);
+ temp_array[1] = (char *)NULL;
+ }
+ return (temp_array);
+}
- rl_delete_text (start, rl_point);
- rl_point = start;
- rl_begin_undo_group ();
- if (matches[1])
+/* Find the common prefix of the list of matches, and put it into
+ matches[0]. */
+static int
+compute_lcd_of_matches (match_list, matches, text)
+ char **match_list;
+ int matches;
+ const char *text;
+{
+ register int i, c1, c2, si;
+ int low; /* Count of max-matched characters. */
+ char *dtext; /* dequoted TEXT, if needed */
+#if defined (HANDLE_MULTIBYTE)
+ int v;
+ mbstate_t ps1, ps2;
+ wchar_t wc1, wc2;
+#endif
+
+ /* If only one match, just use that. Otherwise, compare each
+ member of the list with the next, finding out where they
+ stop matching. */
+ if (matches == 1)
+ {
+ match_list[0] = match_list[1];
+ match_list[1] = (char *)NULL;
+ return 1;
+ }
+
+ for (i = 1, low = 100000; i < matches; i++)
+ {
+#if defined (HANDLE_MULTIBYTE)
+ if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+ {
+ memset (&ps1, 0, sizeof (mbstate_t));
+ memset (&ps2, 0, sizeof (mbstate_t));
+ }
+#endif
+ if (_rl_completion_case_fold)
+ {
+ for (si = 0;
+ (c1 = _rl_to_lower(match_list[i][si])) &&
+ (c2 = _rl_to_lower(match_list[i + 1][si]));
+ si++)
+#if defined (HANDLE_MULTIBYTE)
+ if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
{
- while (matches[i])
- {
- rl_insert_text (matches[i++]);
- rl_insert_text (" ");
- }
+ v = mbrtowc (&wc1, match_list[i]+si, strlen (match_list[i]+si), &ps1);
+ mbrtowc (&wc2, match_list[i+1]+si, strlen (match_list[i+1]+si), &ps2);
+ wc1 = towlower (wc1);
+ wc2 = towlower (wc2);
+ if (wc1 != wc2)
+ break;
+ else if (v > 1)
+ si += v - 1;
}
else
+#endif
+ if (c1 != c2)
+ break;
+ }
+ else
+ {
+ for (si = 0;
+ (c1 = match_list[i][si]) &&
+ (c2 = match_list[i + 1][si]);
+ si++)
+#if defined (HANDLE_MULTIBYTE)
+ if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
{
- rl_insert_text (matches[0]);
- rl_insert_text (" ");
+ mbstate_t ps_back = ps1;
+ if (!_rl_compare_chars (match_list[i], si, &ps1, match_list[i+1], si, &ps2))
+ break;
+ else if ((v = _rl_get_char_len (&match_list[i][si], &ps_back)) > 1)
+ si += v - 1;
}
- rl_end_undo_group ();
- }
- break;
+ else
+#endif
+ if (c1 != c2)
+ break;
+ }
- case '?':
- {
- int len, count, limit, max = 0;
- int j, k, l;
+ if (low > si)
+ low = si;
+ }
- /* Handle simple case first. What if there is only one answer? */
- if (!matches[1])
- {
- char *temp = (char *)NULL;
+ /* If there were multiple matches, but none matched up to even the
+ first character, and the user typed something, use that as the
+ value of matches[0]. */
+ if (low == 0 && text && *text)
+ {
+ match_list[0] = (char *)xmalloc (strlen (text) + 1);
+ strcpy (match_list[0], text);
+ }
+ else
+ {
+ match_list[0] = (char *)xmalloc (low + 1);
- if (rl_filename_completion_desired)
- temp = strrchr (matches[0], '/');
+ /* XXX - this might need changes in the presence of multibyte chars */
+
+ /* If we are ignoring case, try to preserve the case of the string
+ the user typed in the face of multiple matches differing in case. */
+ if (_rl_completion_case_fold)
+ {
+ /* We're making an assumption here:
+ IF we're completing filenames AND
+ the application has defined a filename dequoting function AND
+ we found a quote character AND
+ the application has requested filename quoting
+ THEN
+ we assume that TEXT was dequoted before checking against
+ the file system and needs to be dequoted here before we
+ check against the list of matches
+ FI */
+ dtext = (char *)NULL;
+ if (rl_filename_completion_desired &&
+ rl_filename_dequoting_function &&
+ rl_completion_found_quote &&
+ rl_filename_quoting_desired)
+ {
+ dtext = (*rl_filename_dequoting_function) ((char *)text, rl_completion_quote_character);
+ text = dtext;
+ }
- if (!temp)
- temp = matches[0];
- else
- temp++;
+ /* sort the list to get consistent answers. */
+ qsort (match_list+1, matches, sizeof(char *), (QSFUNC *)_rl_qsort_string_compare);
- crlf ();
- fprintf (rl_outstream, "%s", temp);
-#if defined (VISIBLE_STATS)
- if (rl_filename_completion_desired && rl_visible_stats)
+ si = strlen (text);
+ if (si <= low)
+ {
+ for (i = 1; i <= matches; i++)
+ if (strncmp (match_list[i], text, si) == 0)
{
- int extension_char;
-
- extension_char = stat_char (matches[0]);
- if (extension_char)
- putc (extension_char, rl_outstream);
+ strncpy (match_list[0], match_list[i], low);
+ break;
}
-#endif /* VISIBLE_STATS */
- crlf ();
- goto restart;
- }
+ /* no casematch, use first entry */
+ if (i > matches)
+ strncpy (match_list[0], match_list[1], low);
+ }
+ else
+ /* otherwise, just use the text the user typed. */
+ strncpy (match_list[0], text, low);
- /* 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;
+ FREE (dtext);
+ }
+ else
+ strncpy (match_list[0], match_list[1], low);
- /* 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;
+ match_list[0][low] = '\0';
+ }
- if (!temp)
- temp = matches[i];
- else
- temp++;
+ return matches;
+}
- name_length = strlen (temp);
+static int
+postprocess_matches (matchesp, matching_filenames)
+ char ***matchesp;
+ int matching_filenames;
+{
+ char *t, **matches, **temp_matches;
+ int nmatch, i;
- if (name_length > max)
- max = name_length;
- }
+ matches = *matchesp;
- len = i - 1;
+ if (matches == 0)
+ return 0;
- /* 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;
- }
- }
+ /* It seems to me that in all the cases we handle we would like
+ to ignore duplicate possiblilities. Scan for the text to
+ insert being identical to the other completions. */
+ if (rl_ignore_completion_duplicates)
+ {
+ temp_matches = remove_duplicate_matches (matches);
+ free (matches);
+ matches = temp_matches;
+ }
- /* 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--;
+ /* 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 && matching_filenames)
+ {
+ for (nmatch = 1; matches[nmatch]; nmatch++)
+ ;
+ (void)(*rl_ignore_some_completions_function) (matches);
+ if (matches == 0 || matches[0] == 0)
+ {
+ FREE (matches);
+ *matchesp = (char **)0;
+ return 0;
+ }
+ else
+ {
+ /* If we removed some matches, recompute the common prefix. */
+ for (i = 1; matches[i]; i++)
+ ;
+ if (i > 1 && i < nmatch)
+ {
+ t = matches[0];
+ compute_lcd_of_matches (matches, i - 1, t);
+ FREE (t);
+ }
+ }
+ }
- /* 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;
+ *matchesp = matches;
+ return (1);
+}
- /* How many iterations of the printing loop? */
- count = (len + (limit - 1)) / limit;
+/* A convenience function for displaying a list of strings in
+ columnar format on readline's output stream. MATCHES is the list
+ of strings, in argv format, LEN is the number of strings in MATCHES,
+ and MAX is the length of the longest string in MATCHES. */
+void
+rl_display_match_list (matches, len, max)
+ char **matches;
+ int len, max;
+{
+ int count, limit, printed_len, lines;
+ int i, j, k, l;
+ char *temp;
- /* Watch out for special case. If LEN is less than LIMIT, then
- just do the inner printing loop. */
- if (len < limit)
- count = 1;
+ /* How many items of MAX length can we fit in the screen window? */
+ max += 2;
+ limit = _rl_screenwidth / max;
+ if (limit != 1 && (limit * max == _rl_screenwidth))
+ limit--;
- /* Sort the items if they are not already sorted. */
- if (!rl_ignore_completion_duplicates)
- qsort (matches, len, sizeof (char *), compare_strings);
+ /* Avoid a possible floating exception. If max > _rl_screenwidth,
+ limit will be 0 and a divide-by-zero fault will result. */
+ if (limit == 0)
+ limit = 1;
- /* Print the sorted items, up-and-down alphabetically, like
- ls might. */
- crlf ();
+ /* How many iterations of the printing loop? */
+ count = (len + (limit - 1)) / limit;
- 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);
+ /* Watch out for special case. If LEN is less than LIMIT, then
+ just do the inner printing loop.
+ 0 < len <= limit implies count = 1. */
-#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 */
+ /* Sort the items if they are not already sorted. */
+ if (rl_ignore_completion_duplicates == 0)
+ qsort (matches + 1, len, sizeof (char *), (QSFUNC *)_rl_qsort_string_compare);
- if (j + 1 < limit)
- {
- for (k = 0; k < max - printed_length; k++)
- putc (' ', rl_outstream);
- }
- }
- l += count;
- }
- crlf ();
- }
- restart:
+ rl_crlf ();
- rl_on_new_line ();
- }
- break;
+ lines = 0;
+ if (_rl_print_completions_horizontally == 0)
+ {
+ /* Print the sorted items, up-and-down alphabetically, like ls. */
+ for (i = 1; i <= count; i++)
+ {
+ for (j = 0, l = i; j < limit; j++)
+ {
+ if (l > len || matches[l] == 0)
+ break;
+ else
+ {
+ temp = printable_part (matches[l]);
+ printed_len = print_filename (temp, matches[l]);
+
+ if (j + 1 < limit)
+ for (k = 0; k < max - printed_len; k++)
+ putc (' ', rl_outstream);
+ }
+ l += count;
+ }
+ rl_crlf ();
+ lines++;
+ if (_rl_page_completions && lines >= (_rl_screenheight - 1) && i < count)
+ {
+ lines = _rl_internal_pager (lines);
+ if (lines < 0)
+ return;
+ }
+ }
+ }
+ else
+ {
+ /* Print the sorted items, across alphabetically, like ls -x. */
+ for (i = 1; matches[i]; i++)
+ {
+ temp = printable_part (matches[i]);
+ printed_len = print_filename (temp, matches[i]);
+ /* Have we reached the end of this line? */
+ if (matches[i+1])
+ {
+ if (i && (limit > 1) && (i % limit) == 0)
+ {
+ rl_crlf ();
+ lines++;
+ if (_rl_page_completions && lines >= _rl_screenheight - 1)
+ {
+ lines = _rl_internal_pager (lines);
+ if (lines < 0)
+ return;
+ }
+ }
+ else
+ for (k = 0; k < max - printed_len; k++)
+ putc (' ', rl_outstream);
+ }
+ }
+ rl_crlf ();
+ }
+}
+
+/* Display MATCHES, a list of matching filenames in argv format. This
+ handles the simple case -- a single match -- first. If there is more
+ than one match, we compute the number of strings in the list and the
+ length of the longest string, which will be needed by the display
+ function. If the application wants to handle displaying the list of
+ matches itself, it sets RL_COMPLETION_DISPLAY_MATCHES_HOOK to the
+ address of a function, and we just call it. If we're handling the
+ display ourselves, we just call rl_display_match_list. We also check
+ that the list of matches doesn't exceed the user-settable threshold,
+ and ask the user if he wants to see the list if there are more matches
+ than RL_COMPLETION_QUERY_ITEMS. */
+static void
+display_matches (matches)
+ char **matches;
+{
+ int len, max, i;
+ char *temp;
+
+ /* Move to the last visible line of a possibly-multiple-line command. */
+ _rl_move_vert (_rl_vis_botlin);
+
+ /* Handle simple case first. What if there is only one answer? */
+ if (matches[1] == 0)
+ {
+ temp = printable_part (matches[0]);
+ rl_crlf ();
+ print_filename (temp, matches[0]);
+ rl_crlf ();
+
+ rl_forced_update_display ();
+ rl_display_fixed = 1;
+
+ return;
+ }
+
+ /* There is more than one answer. Find out how many there are,
+ and find the maximum printed length of a single entry. */
+ for (max = 0, i = 1; matches[i]; i++)
+ {
+ temp = printable_part (matches[i]);
+ len = fnwidth (temp);
+
+ if (len > max)
+ max = len;
+ }
+
+ len = i - 1;
+
+ /* If the caller has defined a display hook, then call that now. */
+ if (rl_completion_display_matches_hook)
+ {
+ (*rl_completion_display_matches_hook) (matches, len, max);
+ return;
+ }
+
+ /* If there are many items, then ask the user if she really wants to
+ see them all. */
+ if (rl_completion_query_items > 0 && len >= rl_completion_query_items)
+ {
+ rl_crlf ();
+ fprintf (rl_outstream, "Display all %d possibilities? (y or n)", len);
+ fflush (rl_outstream);
+ if (get_y_or_n (0) == 0)
+ {
+ rl_crlf ();
+
+ rl_forced_update_display ();
+ rl_display_fixed = 1;
- default:
- fprintf (stderr, "\r\nreadline: bad value for what_to_do in rl_complete\n");
- abort ();
+ return;
+ }
+ }
+
+ rl_display_match_list (matches, len, max);
+
+ rl_forced_update_display ();
+ rl_display_fixed = 1;
+}
+
+static char *
+make_quoted_replacement (match, mtype, qc)
+ char *match;
+ int mtype;
+ char *qc; /* Pointer to quoting character, if any */
+{
+ int should_quote, do_replace;
+ char *replacement;
+
+ /* 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 = match;
+
+ should_quote = match && rl_completer_quote_characters &&
+ rl_filename_completion_desired &&
+ rl_filename_quoting_desired;
+
+ if (should_quote)
+ should_quote = should_quote && (!qc || !*qc ||
+ (rl_completer_quote_characters && strchr (rl_completer_quote_characters, *qc)));
+
+ if (should_quote)
+ {
+ /* If there is a single match, see if we need to quote it.
+ This also checks whether the common prefix of several
+ matches needs to be quoted. */
+ should_quote = rl_filename_quote_characters
+ ? (_rl_strpbrk (match, rl_filename_quote_characters) != 0)
+ : 0;
+
+ do_replace = should_quote ? mtype : NO_MATCH;
+ /* Quote the replacement, since we found an embedded
+ word break character in a potential match. */
+ if (do_replace != NO_MATCH && rl_filename_quoting_function)
+ replacement = (*rl_filename_quoting_function) (match, do_replace, qc);
+ }
+ return (replacement);
+}
+
+static void
+insert_match (match, start, mtype, qc)
+ char *match;
+ int start, mtype;
+ char *qc;
+{
+ char *replacement;
+ char oqc;
+
+ oqc = qc ? *qc : '\0';
+ replacement = make_quoted_replacement (match, mtype, qc);
+
+ /* Now insert the match. */
+ if (replacement)
+ {
+ /* Don't double an opening quote character. */
+ if (qc && *qc && start && rl_line_buffer[start - 1] == *qc &&
+ replacement[0] == *qc)
+ start--;
+ /* If make_quoted_replacement changed the quoting character, remove
+ the opening quote and insert the (fully-quoted) replacement. */
+ else if (qc && (*qc != oqc) && start && rl_line_buffer[start - 1] == oqc &&
+ replacement[0] != oqc)
+ start--;
+ _rl_replace_text (replacement, start, rl_point - 1);
+ if (replacement != match)
+ free (replacement);
+ }
+}
+
+/* Append any necessary closing quote and a separator character to the
+ just-inserted match. If the user has specified that directories
+ should be marked by a trailing `/', append one of those instead. The
+ default trailing character is a space. Returns the number of characters
+ appended. If NONTRIVIAL_MATCH is set, we test for a symlink (if the OS
+ has them) and don't add a suffix for a symlink to a directory. A
+ nontrivial match is one that actually adds to the word being completed.
+ The variable rl_completion_mark_symlink_dirs controls this behavior
+ (it's initially set to the what the user has chosen, indicated by the
+ value of _rl_complete_mark_symlink_dirs, but may be modified by an
+ application's completion function). */
+static int
+append_to_match (text, delimiter, quote_char, nontrivial_match)
+ char *text;
+ int delimiter, quote_char, nontrivial_match;
+{
+ char temp_string[4], *filename;
+ int temp_string_index, s;
+ struct stat finfo;
+
+ temp_string_index = 0;
+ if (quote_char && rl_point && rl_completion_suppress_quote == 0 &&
+ rl_line_buffer[rl_point - 1] != quote_char)
+ temp_string[temp_string_index++] = quote_char;
+
+ if (delimiter)
+ temp_string[temp_string_index++] = delimiter;
+ else if (rl_completion_suppress_append == 0 && rl_completion_append_character)
+ temp_string[temp_string_index++] = rl_completion_append_character;
+
+ temp_string[temp_string_index++] = '\0';
+
+ if (rl_filename_completion_desired)
+ {
+ filename = tilde_expand (text);
+ s = (nontrivial_match && rl_completion_mark_symlink_dirs == 0)
+ ? LSTAT (filename, &finfo)
+ : stat (filename, &finfo);
+ if (s == 0 && S_ISDIR (finfo.st_mode))
+ {
+ if (_rl_complete_mark_directories /* && rl_completion_suppress_append == 0 */)
+ {
+ /* This is clumsy. Avoid putting in a double slash if point
+ is at the end of the line and the previous character is a
+ slash. */
+ if (rl_point && rl_line_buffer[rl_point] == '\0' && rl_line_buffer[rl_point - 1] == '/')
+ ;
+ else if (rl_line_buffer[rl_point] != '/')
+ rl_insert_text ("/");
+ }
+ }
+#ifdef S_ISLNK
+ /* Don't add anything if the filename is a symlink and resolves to a
+ directory. */
+ else if (s == 0 && S_ISLNK (finfo.st_mode) &&
+ stat (filename, &finfo) == 0 && S_ISDIR (finfo.st_mode))
+ ;
+#endif
+ else
+ {
+ if (rl_point == rl_end && temp_string_index)
+ rl_insert_text (temp_string);
}
-
- for (i = 0; matches[i]; i++)
- free (matches[i]);
- free (matches);
+ free (filename);
}
-
- /* Check to see if the line has changed through all of this manipulation. */
- if (saved_line_buffer)
+ else
{
- if (strcmp (rl_line_buffer, saved_line_buffer) != 0)
- completion_changed_buffer = 1;
- else
- completion_changed_buffer = 0;
-
- free (saved_line_buffer);
+ if (rl_point == rl_end && temp_string_index)
+ rl_insert_text (temp_string);
}
+
+ return (temp_string_index);
}
-#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;
+static void
+insert_all_matches (matches, point, qc)
+ char **matches;
+ int point;
+ char *qc;
{
- 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))
+ int i;
+ char *rp;
+
+ rl_begin_undo_group ();
+ /* remove any opening quote character; make_quoted_replacement will add
+ it back. */
+ if (qc && *qc && point && rl_line_buffer[point - 1] == *qc)
+ point--;
+ rl_delete_text (point, rl_point);
+ rl_point = point;
+
+ if (matches[1])
{
- if (access (filename, X_OK) == 0)
- character = '*';
+ for (i = 1; matches[i]; i++)
+ {
+ rp = make_quoted_replacement (matches[i], SINGLE_MATCH, qc);
+ rl_insert_text (rp);
+ rl_insert_text (" ");
+ if (rp != matches[i])
+ free (rp);
+ }
}
- return (character);
+ else
+ {
+ rp = make_quoted_replacement (matches[0], SINGLE_MATCH, qc);
+ rl_insert_text (rp);
+ rl_insert_text (" ");
+ if (rp != matches[0])
+ free (rp);
+ }
+ rl_end_undo_group ();
}
-#endif /* VISIBLE_STATS */
-/* Stupid comparison routine for qsort () ing strings. */
-static int
-compare_strings (s1, s2)
- char **s1, **s2;
+void
+_rl_free_match_list (matches)
+ char **matches;
{
- return (strcmp (*s1, *s2));
+ register int i;
+
+ if (matches == 0)
+ return;
+
+ for (i = 0; matches[i]; i++)
+ free (matches[i]);
+ free (matches);
}
-/* 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;
+/* 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.
+ `!' means to do standard completion, and list all possible completions if
+ there is more than one.
+ `@' means to do standard completion, and list all possible completions if
+ there is more than one and partial completion is not possible. */
+int
+rl_complete_internal (what_to_do)
+ int what_to_do;
{
-#if defined (MINIMAL)
- return (char *)NULL;
-#else /* !MINIMAL */
- static char *username = (char *)NULL;
- static struct passwd *entry;
- static int namelen, first_char, first_char_loc;
+ char **matches;
+ rl_compentry_func_t *our_func;
+ int start, end, delimiter, found_quote, i, nontrivial_lcd;
+ char *text, *saved_line_buffer;
+ char quote_char;
- if (!state)
- {
- if (username)
- free (username);
+ RL_SETSTATE(RL_STATE_COMPLETING);
- first_char = *text;
+ set_completion_defaults (what_to_do);
- if (first_char == '~')
- first_char_loc = 1;
- else
- first_char_loc = 0;
+ saved_line_buffer = rl_line_buffer ? savestring (rl_line_buffer) : (char *)NULL;
+ our_func = rl_completion_entry_function
+ ? rl_completion_entry_function
+ : rl_filename_completion_function;
+ /* We now look backwards for the start of a filename/variable word. */
+ end = rl_point;
+ found_quote = delimiter = 0;
+ quote_char = '\0';
- username = savestring (&text[first_char_loc]);
- namelen = strlen (username);
- setpwent ();
- }
+ if (rl_point)
+ /* This (possibly) changes rl_point. If it returns a non-zero char,
+ we know we have an open quote. */
+ quote_char = _rl_find_completion_word (&found_quote, &delimiter);
- while (entry = getpwent ())
+ start = rl_point;
+ rl_point = end;
+
+ text = rl_copy_text (start, end);
+ matches = gen_completion_matches (text, start, end, our_func, found_quote, quote_char);
+ /* nontrivial_lcd is set if the common prefix adds something to the word
+ being completed. */
+ nontrivial_lcd = matches && strcmp (text, matches[0]) != 0;
+ free (text);
+
+ if (matches == 0)
{
- if (strncmp (username, entry->pw_name, namelen) == 0)
- break;
+ rl_ding ();
+ FREE (saved_line_buffer);
+ completion_changed_buffer = 0;
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
+ return (0);
}
- if (!entry)
+ /* If we are matching filenames, the attempted completion function will
+ have set rl_filename_completion_desired to a non-zero value. The basic
+ rl_filename_completion_function does this. */
+ i = rl_filename_completion_desired;
+
+ if (postprocess_matches (&matches, i) == 0)
{
- endpwent ();
- return ((char *)NULL);
+ rl_ding ();
+ FREE (saved_line_buffer);
+ completion_changed_buffer = 0;
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
+ return (0);
}
- else
+
+ switch (what_to_do)
{
- char *value = (char *)xmalloc (2 + strlen (entry->pw_name));
+ case TAB:
+ case '!':
+ case '@':
+ /* Insert the first match with proper quoting. */
+ if (*matches[0])
+ insert_match (matches[0], start, matches[1] ? MULT_MATCH : SINGLE_MATCH, "e_char);
+
+ /* If there are more matches, ring the bell to indicate.
+ If we are in vi mode, Posix.2 says to not ring the bell.
+ If the `show-all-if-ambiguous' variable is set, display
+ all the matches immediately. Otherwise, if this was the
+ only match, and we are hacking files, check the file to
+ see if it was a directory. If so, and the `mark-directories'
+ variable is set, add a '/' to the name. If not, and we
+ are at the end of the line, then add a space. */
+ if (matches[1])
+ {
+ if (what_to_do == '!')
+ {
+ display_matches (matches);
+ break;
+ }
+ else if (what_to_do == '@')
+ {
+ if (nontrivial_lcd == 0)
+ display_matches (matches);
+ break;
+ }
+ else if (rl_editing_mode != vi_mode)
+ rl_ding (); /* There are other matches remaining. */
+ }
+ else
+ append_to_match (matches[0], delimiter, quote_char, nontrivial_lcd);
- *value = *text;
+ break;
- strcpy (value + first_char_loc, entry->pw_name);
+ case '*':
+ insert_all_matches (matches, start, "e_char);
+ break;
- if (first_char == '~')
- rl_filename_completion_desired = 1;
+ case '?':
+ display_matches (matches);
+ break;
- return (value);
+ default:
+ fprintf (stderr, "\r\nreadline: bad value %d for what_to_do in rl_complete\n", what_to_do);
+ rl_ding ();
+ FREE (saved_line_buffer);
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
+ return 1;
+ }
+
+ _rl_free_match_list (matches);
+
+ /* Check to see if the line has changed through all of this manipulation. */
+ if (saved_line_buffer)
+ {
+ completion_changed_buffer = strcmp (rl_line_buffer, saved_line_buffer) != 0;
+ free (saved_line_buffer);
}
-#endif /* !MINIMAL */
+
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
+ return 0;
}
-\f
-/* **************************************************************** */
-/* */
-/* Completion */
-/* */
-/* **************************************************************** */
-/* Non-zero means that case is not significant in completion. */
-int completion_case_fold = 0;
+/***************************************************************/
+/* */
+/* Application-callable completion match generator functions */
+/* */
+/***************************************************************/
/* Return an array of (char *) which is a list of completions for TEXT.
If there are no completions, return a NULL pointer.
when there are no more matches.
*/
char **
-completion_matches (text, entry_function)
- char *text;
- CPFunction *entry_function;
+rl_completion_matches (text, entry_function)
+ const char *text;
+ rl_compentry_func_t *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 *));
+ char **match_list;
/* Number of matches actually found. */
- int matches = 0;
+ int matches;
/* Temporary string binder. */
char *string;
+ matches = 0;
+ match_list_size = 10;
+ match_list = (char **)xmalloc ((match_list_size + 1) * sizeof (char *));
match_list[1] = (char *)NULL;
while (string = (*entry_function) (text, matches))
/* If there were any matches, then look through them finding out the
lowest common denominator. That then becomes match_list[0]. */
if (matches)
+ compute_lcd_of_matches (match_list, matches, text);
+ else /* There were no matches. */
{
- register int i = 1;
- int low = 100000; /* Count of max-matched characters. */
+ free (match_list);
+ match_list = (char **)NULL;
+ }
+ return (match_list);
+}
- /* 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. */
+/* A completion function for usernames.
+ TEXT contains a partial username preceded by a random
+ character (usually `~'). */
+char *
+rl_username_completion_function (text, state)
+ const char *text;
+ int state;
+{
+#if defined (__WIN32__) || defined (__OPENNT)
+ return (char *)NULL;
+#else /* !__WIN32__ && !__OPENNT) */
+ static char *username = (char *)NULL;
+ static struct passwd *entry;
+ static int namelen, first_char, first_char_loc;
+ char *value;
- while (i < matches)
- {
- register int c1, c2, si;
+ if (state == 0)
+ {
+ FREE (username);
- 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;
- }
+ first_char = *text;
+ first_char_loc = first_char == '~';
- 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';
- }
+ username = savestring (&text[first_char_loc]);
+ namelen = strlen (username);
+ setpwent ();
}
- else /* There were no matches. */
+
+#if defined (HAVE_GETPWENT)
+ while (entry = getpwent ())
{
- free (match_list);
- match_list = (char **)NULL;
+ /* Null usernames should result in all users as possible completions. */
+ if (namelen == 0 || (STREQN (username, entry->pw_name, namelen)))
+ break;
}
- return (match_list);
+#endif
+
+ if (entry == 0)
+ {
+#if defined (HAVE_GETPWENT)
+ endpwent ();
+#endif
+ return ((char *)NULL);
+ }
+ else
+ {
+ 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 /* !__WIN32__ && !__OPENNT */
}
/* Okay, now we write the entry_function for filename completion. In the
because of all the pathnames that must be followed when looking up the
completion for a command. */
char *
-filename_completion_function (text, state)
+rl_filename_completion_function (text, state)
+ const char *text;
int state;
- char *text;
{
-#ifndef WIN32
- static DIR *directory;
+ static DIR *directory = (DIR *)NULL;
static char *filename = (char *)NULL;
static char *dirname = (char *)NULL;
static char *users_dirname = (char *)NULL;
static int filename_len;
-
- dirent *entry = (dirent *)NULL;
+ char *temp;
+ int dirlen;
+ struct dirent *entry;
/* If we don't have any state, then do some initialization. */
- if (!state)
+ if (state == 0)
{
- char *temp;
-
- if (dirname) free (dirname);
- if (filename) free (filename);
- if (users_dirname) free (users_dirname);
+ /* If we were interrupted before closing the directory or reading
+ all of its contents, close it. */
+ if (directory)
+ {
+ closedir (directory);
+ directory = (DIR *)NULL;
+ }
+ FREE (dirname);
+ FREE (filename);
+ FREE (users_dirname);
filename = savestring (text);
- if (!*text) text = ".";
+ if (*text == 0)
+ text = ".";
dirname = savestring (text);
temp = strrchr (dirname, '/');
+#if defined (__MSDOS__)
+ /* special hack for //X/... */
+ if (dirname[0] == '/' && dirname[1] == '/' && ISALPHA ((unsigned char)dirname[2]) && dirname[3] == '/')
+ temp = strrchr (dirname + 3, '/');
+#endif
+
if (temp)
{
strcpy (filename, ++temp);
*temp = '\0';
}
+#if defined (__MSDOS__)
+ /* searches from current directory on the drive */
+ else if (ISALPHA ((unsigned char)dirname[0]) && dirname[1] == ':')
+ {
+ strcpy (filename, dirname + 2);
+ dirname[2] = '\0';
+ }
+#endif
else
- strcpy (dirname, ".");
+ {
+ dirname[0] = '.';
+ dirname[1] = '\0';
+ }
/* 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 (*dirname == '~')
+ {
+ temp = tilde_expand (dirname);
+ free (dirname);
+ dirname = temp;
+ }
+
+ if (rl_directory_rewrite_hook)
+ (*rl_directory_rewrite_hook) (&dirname);
+
+ if (rl_directory_completion_hook && (*rl_directory_completion_hook) (&dirname))
+ {
+ free (users_dirname);
+ users_dirname = savestring (dirname);
+ }
- if (rl_symbolic_link_hook)
- (*rl_symbolic_link_hook) (&dirname);
- }
directory = opendir (dirname);
filename_len = strlen (filename);
/* Now that we have some state, we can read the directory. */
+ entry = (struct dirent *)NULL;
while (directory && (entry = readdir (directory)))
{
- /* Special case for no filename.
- All entries except "." and ".." match. */
- if (!filename_len)
+ /* Special case for no filename. If the user has disabled the
+ `match-hidden-files' variable, skip filenames beginning with `.'.
+ All other entries except "." and ".." match. */
+ if (filename_len == 0)
{
- if ((strcmp (entry->d_name, ".") != 0) &&
- (strcmp (entry->d_name, "..") != 0))
+ if (_rl_match_hidden_files == 0 && HIDDEN_FILE (entry->d_name))
+ continue;
+
+ if (entry->d_name[0] != '.' ||
+ (entry->d_name[1] &&
+ (entry->d_name[1] != '.' || entry->d_name[2])))
break;
}
else
{
- /* Otherwise, if these match upto the length of filename, then
+ /* Otherwise, if these match up to 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))
- {
+ if (_rl_completion_case_fold)
+ {
+ if ((_rl_to_lower (entry->d_name[0]) == _rl_to_lower (filename[0])) &&
+ (((int)D_NAMLEN (entry)) >= filename_len) &&
+ (_rl_strnicmp (filename, entry->d_name, filename_len) == 0))
break;
- }
+ }
+ else
+ {
+ if ((entry->d_name[0] == filename[0]) &&
+ (((int)D_NAMLEN (entry)) >= filename_len) &&
+ (strncmp (filename, entry->d_name, filename_len) == 0))
+ break;
+ }
}
}
- if (!entry)
+ if (entry == 0)
{
if (directory)
{
closedir (directory);
directory = (DIR *)NULL;
}
-
if (dirname)
{
free (dirname);
}
else
{
- char *temp;
-
- if (dirname && (strcmp (dirname, ".") != 0))
+ /* dirname && (strcmp (dirname, ".") != 0) */
+ if (dirname && (dirname[0] != '.' || dirname[1]))
{
if (rl_complete_with_tilde_expansion && *users_dirname == '~')
{
- int dirlen = strlen (dirname);
+ 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. */
+ /* Canonicalization cuts off any final slash present. We
+ may need to add it back. */
if (dirname[dirlen - 1] != '/')
{
- temp[dirlen] = '/';
- temp[dirlen + 1] = '\0';
+ temp[dirlen++] = '/';
+ temp[dirlen] = '\0';
}
}
else
{
- temp = (char *)
- xmalloc (1 + strlen (users_dirname) + D_NAMLEN (entry));
+ dirlen = strlen (users_dirname);
+ temp = (char *)xmalloc (2 + dirlen + D_NAMLEN (entry));
strcpy (temp, users_dirname);
+ /* Make sure that temp has a trailing slash here. */
+ if (users_dirname[dirlen - 1] != '/')
+ temp[dirlen++] = '/';
}
- strcat (temp, entry->d_name);
+ strcpy (temp + dirlen, entry->d_name);
}
else
- {
- temp = (savestring (entry->d_name));
- }
+ temp = savestring (entry->d_name);
+
return (temp);
}
-#endif
}
-/* A function for simple tilde expansion. */
+/* An initial implementation of a menu completion function a la tcsh. The
+ first time (if the last readline command was not rl_menu_complete), we
+ generate the list of matches. This code is very similar to the code in
+ rl_complete_internal -- there should be a way to combine the two. Then,
+ for each item in the list of matches, we insert the match in an undoable
+ fashion, with the appropriate character appended (this happens on the
+ second and subsequent consecutive calls to rl_menu_complete). When we
+ hit the end of the match list, we restore the original unmatched text,
+ ring the bell, and reset the counter to zero. */
int
-rl_tilde_expand (ignore, key)
- int ignore, key;
+rl_menu_complete (count, ignore)
+ int count, ignore;
{
- register int start, end;
- char *homedir;
+ rl_compentry_func_t *our_func;
+ int matching_filenames, found_quote;
+
+ static char *orig_text;
+ static char **matches = (char **)0;
+ static int match_list_index = 0;
+ static int match_list_size = 0;
+ static int orig_start, orig_end;
+ static char quote_char;
+ static int delimiter;
+
+ /* The first time through, we generate the list of matches and set things
+ up to insert them. */
+ if (rl_last_func != rl_menu_complete)
+ {
+ /* Clean up from previous call, if any. */
+ FREE (orig_text);
+ if (matches)
+ _rl_free_match_list (matches);
- end = rl_point;
- start = end - 1;
+ match_list_index = match_list_size = 0;
+ matches = (char **)NULL;
- 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++;
- }
+ /* Only the completion entry function can change these. */
+ set_completion_defaults ('%');
- end = start;
- do
- {
- end++;
- }
- while (!whitespace (rl_line_buffer[end]) && end < rl_end);
+ our_func = rl_completion_entry_function
+ ? rl_completion_entry_function
+ : rl_filename_completion_function;
- if (whitespace (rl_line_buffer[end]) || end >= rl_end)
- end--;
+ /* We now look backwards for the start of a filename/variable word. */
+ orig_end = rl_point;
+ found_quote = delimiter = 0;
+ quote_char = '\0';
- /* 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 ();
- }
+ if (rl_point)
+ /* This (possibly) changes rl_point. If it returns a non-zero char,
+ we know we have an open quote. */
+ quote_char = _rl_find_completion_word (&found_quote, &delimiter);
- return (0);
-}
+ orig_start = rl_point;
+ rl_point = orig_end;
-/* 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;
+ orig_text = rl_copy_text (orig_start, orig_end);
+ matches = gen_completion_matches (orig_text, orig_start, orig_end,
+ our_func, found_quote, quote_char);
- for (; *string1; string1++)
- {
- for (scan = string2; *scan; scan++)
+ /* If we are matching filenames, the attempted completion function will
+ have set rl_filename_completion_desired to a non-zero value. The basic
+ rl_filename_completion_function does this. */
+ matching_filenames = rl_filename_completion_desired;
+
+ if (matches == 0 || postprocess_matches (&matches, matching_filenames) == 0)
{
- if (*string1 == *scan)
- {
- return (string1);
- }
+ rl_ding ();
+ FREE (matches);
+ matches = (char **)0;
+ FREE (orig_text);
+ orig_text = (char *)0;
+ completion_changed_buffer = 0;
+ return (0);
}
- }
- 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);
+ for (match_list_size = 0; matches[match_list_size]; match_list_size++)
+ ;
+ /* matches[0] is lcd if match_list_size > 1, but the circular buffer
+ code below should take care of it. */
+ }
- if (!temp)
- memory_error_and_abort ();
- return (temp);
-}
+ /* Now we have the list of matches. Replace the text between
+ rl_line_buffer[orig_start] and rl_line_buffer[rl_point] with
+ matches[match_list_index], and add any necessary closing char. */
-static char *
-xrealloc (pointer, bytes)
- char *pointer;
- int bytes;
-{
- char *temp;
+ if (matches == 0 || match_list_size == 0)
+ {
+ rl_ding ();
+ FREE (matches);
+ matches = (char **)0;
+ completion_changed_buffer = 0;
+ return (0);
+ }
- if (!pointer)
- temp = (char *)malloc (bytes);
+ match_list_index += count;
+ if (match_list_index < 0)
+ match_list_index += match_list_size;
else
- temp = (char *)realloc (pointer, bytes);
+ match_list_index %= match_list_size;
- if (!temp)
- memory_error_and_abort ();
-
- return (temp);
-}
+ if (match_list_index == 0 && match_list_size > 1)
+ {
+ rl_ding ();
+ insert_match (orig_text, orig_start, MULT_MATCH, "e_char);
+ }
+ else
+ {
+ insert_match (matches[match_list_index], orig_start, SINGLE_MATCH, "e_char);
+ append_to_match (matches[match_list_index], delimiter, quote_char,
+ strcmp (orig_text, matches[match_list_index]));
+ }
-static void
-memory_error_and_abort ()
-{
- fprintf (stderr, "readline: Out of virtual memory!\n");
- abort ();
+ completion_changed_buffer = 1;
+ return (0);
}
-#endif /* STATIC_MALLOC */
projects / deliverable / binutils-gdb.git / blobdiff