/* complete.c -- filename completion for readline. */
-/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2017 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.
+ This file is part of the GNU Readline Library (Readline), 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
+ Readline is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
- The GNU Readline Library is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ Readline is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- 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. */
+ You should have received a copy of the GNU General Public License
+ along with Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
-#include "sysdep.h"
-#include <stdio.h>
+#define READLINE_LIBRARY
+
+#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
+
+#include <signal.h>
+
+#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"
+
+#if defined (COLOR_SUPPORT)
+# include "colors.h"
+#endif
+
+#ifdef __STDC__
+typedef int QSFUNC (const void *, const void *);
+#else
+typedef int QSFUNC ();
+#endif
+
+#ifdef HAVE_LSTAT
+# define LSTAT lstat
+#else
+# define LSTAT stat
+#endif
+
+/* Unix version of a hidden file. Could be different on other systems. */
+#define HIDDEN_FILE(fname) ((fname)[0] == '.')
+
+/* 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 non-zero, then this is the address of a function to call when
+ 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) || defined (COLOR_SUPPORT)
+# if !defined (X_OK)
+# define X_OK 1
+# endif
+#endif
+
+#if defined (VISIBLE_STATS)
+static int stat_char PARAMS((char *));
+#endif
+
+#if defined (COLOR_SUPPORT)
+static int colored_stat_start PARAMS((const char *));
+static void colored_stat_end PARAMS((void));
+static int colored_prefix_start PARAMS((void));
+static void colored_prefix_end PARAMS((void));
+#endif
+
+static int path_isdir PARAMS((const char *));
+
+static char *rl_quote_filename PARAMS((char *, int, char *));
+
+static void _rl_complete_sigcleanup PARAMS((int, void *));
+
+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 *, int, const char *));
+static int print_filename PARAMS((char *, char *, int));
+
+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 int complete_fncmp PARAMS((const char *, int, const char *, int));
+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 int complete_get_screenwidth PARAMS((void));
+
+static char *make_quoted_replacement PARAMS((char *, int, char *));
-/* Possible values for do_replace in rl_complete_internal. */
-#define NO_MATCH 0
-#define SINGLE_MATCH 1
-#define MULT_MATCH 2
+/* **************************************************************** */
+/* */
+/* Completion matching, from readline's point of view. */
+/* */
+/* **************************************************************** */
+
+/* Variables known only to the readline library. */
-#if !defined (strchr) && !defined (__STDC__)
-extern char *strchr (), *strrchr ();
-#endif /* !strchr && !__STDC__ */
+/* If non-zero, non-unique completions always show the list of matches. */
+int _rl_complete_show_all = 0;
-extern char *tilde_expand ();
-extern char *rl_copy_text ();
+/* 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;
-extern Function *rl_last_func;
-extern int rl_editing_mode;
-extern int screenwidth;
+/* If non-zero, completed directory names have a slash appended. */
+int _rl_complete_mark_directories = 1;
-/* Forward declarations for functions defined and used in this file. */
-char *filename_completion_function ();
-char **completion_matches ();
+/* 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;
-static int compare_strings ();
-static char *rl_strpbrk ();
+/* If non-zero, completions are printed horizontally in alphabetical order,
+ like `ls -x'. */
+int _rl_print_completions_horizontally;
-#if defined (STATIC_MALLOC)
-static char *xmalloc (), *xrealloc ();
+/* Non-zero means that case is not significant in filename completion. */
+#if (defined (__MSDOS__) && !defined (__DJGPP__)) || (defined (_WIN32) && !defined (__CYGWIN__))
+int _rl_completion_case_fold = 1;
#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;
+int _rl_completion_case_fold = 0;
+#endif
-/* Non-zero means readline completion functions perform tilde expansion. */
-int rl_complete_with_tilde_expansion = 0;
+/* Non-zero means that `-' and `_' are equivalent when comparing filenames
+ for completion. */
+int _rl_completion_case_map = 0;
-#define VISIBLE_STATS
+/* If zero, don't match hidden files (filenames beginning with a `.' on
+ Unix) when doing filename completion. */
+int _rl_match_hidden_files = 1;
-#if defined (VISIBLE_STATS)
-# if !defined (X_OK)
-# define X_OK 1
-# endif
+/* Length in characters of a common prefix replaced with an ellipsis (`...')
+ when displaying completion matches. Matches whose printable portion has
+ more than this number of displaying characters in common will have the common
+ display prefix replaced with an ellipsis. */
+int _rl_completion_prefix_display_length = 0;
-static int stat_char ();
+/* The readline-private number of screen columns to use when displaying
+ matches. If < 0 or > _rl_screenwidth, it is ignored. */
+int _rl_completion_columns = -1;
+#if defined (COLOR_SUPPORT)
+/* Non-zero means to use colors to indicate file type when listing possible
+ completions. The colors used are taken from $LS_COLORS, if set. */
+int _rl_colored_stats = 0;
+
+/* Non-zero means to use a color (currently magenta) to indicate the common
+ prefix of a set of possible word completions. */
+int _rl_colored_completion_prefix = 0;
+#endif
+
+/* If non-zero, when completing in the middle of a word, don't insert
+ characters from the match that match characters following point in
+ the word. This means, for instance, completing when the cursor is
+ after the `e' in `Makefile' won't result in `Makefilefile'. */
+int _rl_skip_completed_text = 0;
+
+/* If non-zero, menu completion displays the common prefix first in the
+ cycle of possible completions instead of the last. */
+int _rl_menu_complete_prefix_first = 0;
+
+/* 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 */
-/* **************************************************************** */
-/* */
-/* Completion matching, from readline's point of view. */
-/* */
-/* **************************************************************** */
+/* 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;
+
+rl_icppfunc_t *rl_filename_stat_hook = (rl_icppfunc_t *)NULL;
+
+/* If non-zero, this is the address of a function to call when reading
+ directory entries from the filesystem for completion and comparing
+ them to the partial word to be completed. The function should
+ either return its first argument (if no conversion takes place) or
+ newly-allocated memory. This can, for instance, convert filenames
+ between character sets for comparison against what's typed at the
+ keyboard. The returned value is what is added to the list of
+ matches. The second argument is the length of the filename to be
+ converted. */
+rl_dequote_func_t *rl_filename_rewrite_hook = (rl_dequote_func_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 generator function for rl_menu_complete (). NULL means to use
+ *rl_completion_entry_function (see above). */
+rl_compentry_func_t *rl_menu_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;
+rl_completion_func_t *rl_attempted_completion_function = (rl_completion_func_t *)NULL;
-/* Complete the word at or before point. You have supplied the function
- that does the initial simple matching selection algorithm (see
- completion_matches ()). The default is to do filename completion. */
-
-rl_complete (ignore, invoking_key)
- int ignore, invoking_key;
-{
- if (rl_last_func == rl_complete && !completion_changed_buffer)
- rl_complete_internal ('?');
- else
- rl_complete_internal (TAB);
-}
-
-/* List the possible completions. See description of rl_complete (). */
-rl_possible_completions (ignore, invoking_key)
- int ignore, invoking_key;
-{
- rl_complete_internal ('?');
-}
-
-rl_insert_completions (ignore, invoking_key)
- int ignore, invoking_key;
-{
- rl_complete_internal ('*');
-}
-
-/* The user must press "y" or "n". Non-zero return means "y" pressed. */
-get_y_or_n ()
-{
- int c;
+/* Non-zero means to suppress normal filename completion after the
+ user-specified completion function has been called. */
+int rl_attempted_completion_over = 0;
- 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;
-
-#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;
-{
- char *ret, *p, *r;
- int l, quoted;
-
- 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;
-}
-#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;
-{
- 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
-
- if (rl_line_buffer)
- saved_line_buffer = savestring (rl_line_buffer);
- else
- saved_line_buffer = (char *)NULL;
-
- if (rl_completion_entry_function)
- our_func = rl_completion_entry_function;
- else
- our_func = (Function *)filename_completion_function;
+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;
- /* Only the completion entry function can change this. */
- rl_filename_completion_desired = 0;
+/* 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;
- /* We now look backwards for the start of a filename/variable word. */
- end = rl_point;
+/* Character appended to completed words when at the end of the line. The
+ default is a space. */
+int rl_completion_append_character = ' ';
- 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;
- }
+/* 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;
- if (rl_line_buffer[scan] == '\\')
- {
- pass_next = 1;
- continue;
- }
+/* Set to any quote character readline thinks it finds before any application
+ completion function is called. */
+int rl_completion_quote_character;
- 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
- }
- }
- }
+/* 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 (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;
- }
- }
+/* 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 we are at a word break, then advance past it. */
- if (strchr (rl_completer_word_break_characters, rl_line_buffer[rl_point]))
- {
- /* If the character that caused the word break was a quoting
- character, then remember it as the delimiter. */
- if (strchr ("\"'", rl_line_buffer[rl_point]) && (end - rl_point) > 1)
- delimiter = rl_line_buffer[rl_point];
+/* If non-zero, inhibit completion (temporarily). */
+int rl_inhibit_completion;
- /* 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++;
- }
- }
+/* Set to the last key used to invoke one of the completion functions */
+int rl_completion_invoking_key;
- /* 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 non-zero, sort the completion matches. On by default. */
+int rl_sort_completion_matches = 1;
- /* 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);
+/* Variables local to this file. */
- if (matches)
- {
- /* XXX - This is questionable code. - XXX */
- if (matches == (char **)-1)
- matches = (char **)NULL;
- our_func = (Function *)NULL;
- goto after_usual_completion;
- }
- }
+/* Local variable states what happened during the last completion attempt. */
+static int completion_changed_buffer;
-#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)
- {
- /* delete single and double quotes */
- replacement = _delete_quotes (text);
- free (text);
- text = replacement;
- replacement = (char *)0;
- }
-#endif /* SHELL */
+/* The result of the query to the user about displaying completion matches */
+static int completion_y_or_n;
- matches = completion_matches (text, our_func);
+static int _rl_complete_display_matches_interrupt = 0;
- after_usual_completion:
- free (text);
+/*************************************/
+/* */
+/* Bindable completion functions */
+/* */
+/*************************************/
- if (!matches)
- ding ();
+/* 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 (int ignore, int invoking_key)
+{
+ rl_completion_invoking_key = invoking_key;
+
+ 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
- {
- register int i;
+ return (rl_complete_internal (TAB));
+}
- /* 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;
+/* List the possible completions. See description of rl_complete (). */
+int
+rl_possible_completions (int ignore, int invoking_key)
+{
+ rl_completion_invoking_key = invoking_key;
+ return (rl_complete_internal ('?'));
+}
- /* 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);
+int
+rl_insert_completions (int ignore, int invoking_key)
+{
+ rl_completion_invoking_key = invoking_key;
+ return (rl_complete_internal ('*'));
+}
- /* Remember the lowest common denominator for it may be unique. */
- lowest_common = savestring (matches[0]);
+/* 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 (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
+ return TAB;
+}
- for (i = 0; matches[i + 1]; i++)
- {
- if (strcmp (matches[i], matches[i + 1]) == 0)
- {
- free (matches[i]);
- matches[i] = (char *)&dead_slot;
- }
- else
- newlen++;
- }
+/************************************/
+/* */
+/* Completion utility functions */
+/* */
+/************************************/
- /* 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 *));
+/* Reset readline state on a signal or other event. */
+void
+_rl_reset_completion_state (void)
+{
+ rl_completion_found_quote = 0;
+ rl_completion_quote_character = 0;
+}
- for (i = 1, j = 1; matches[i]; i++)
- {
- if (matches[i] != (char *)&dead_slot)
- temp_array[j++] = matches[i];
- }
+static void
+_rl_complete_sigcleanup (int sig, void *ptr)
+{
+ if (sig == SIGINT) /* XXX - for now */
+ {
+ _rl_free_match_list ((char **)ptr);
+ _rl_complete_display_matches_interrupt = 1;
+ }
+}
- temp_array[j] = (char *)NULL;
+/* Set default values for readline word completion. These are the variables
+ that application completion functions can change or inspect. */
+static void
+set_completion_defaults (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;
+ rl_completion_append_character = ' ';
- if (matches[0] != (char *)&dead_slot)
- free (matches[0]);
+ /* The completion entry function may optionally change this. */
+ rl_completion_mark_symlink_dirs = _rl_complete_mark_symlink_dirs;
- free (matches);
+ /* Reset private state. */
+ _rl_complete_display_matches_interrupt = 0;
+}
- matches = temp_array;
- }
+/* The user must press "y" or "n". Non-zero return means "y" pressed. */
+static int
+get_y_or_n (int for_pager)
+{
+ int c;
- /* Place the lowest common denominator back in [0]. */
- matches[0] = lowest_common;
+ /* For now, disable pager in callback mode, until we later convert to state
+ driven functions. Have to wait until next major version to add new
+ state definition, since it will change value of RL_STATE_DONE. */
+#if defined (READLINE_CALLBACKS)
+ if (RL_ISSTATE (RL_STATE_CALLBACK))
+ return 1;
+#endif
- /* 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;
- }
- }
+ for (;;)
+ {
+ RL_SETSTATE(RL_STATE_MOREINPUT);
+ c = rl_read_key ();
+ RL_UNSETSTATE(RL_STATE_MOREINPUT);
- switch (what_to_do)
- {
- case TAB:
- /* If we are matching filenames, then here is our chance to
- do clever processing by re-examining the list. Call the
- ignore function with the array as a parameter. It can
- munge the array, deleting matches as it desires. */
- if (rl_ignore_some_completions_function &&
- our_func == (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;
+ if (c == 'y' || c == 'Y' || c == ' ')
+ return (1);
+ if (c == 'n' || c == 'N' || c == RUBOUT)
+ return (0);
+ if (c == ABORT_CHAR || c < 0)
+ _rl_abort_internal ();
+ if (for_pager && (c == NEWLINE || c == RETURN))
+ return (2);
+ if (for_pager && (c == 'q' || c == 'Q'))
+ return (0);
+ rl_ding ();
+ }
+}
- do_replace = NO_MATCH;
+static int
+_rl_internal_pager (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 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 int
+path_isdir (const char *filename)
+{
+ struct stat finfo;
- 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 */
- }
- }
+ return (stat (filename, &finfo) == 0 && S_ISDIR (finfo.st_mode));
+}
- if (replacement)
- {
- rl_delete_text (start, rl_point);
- rl_point = start;
- rl_insert_text (replacement);
+#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 (char *filename)
+{
+ struct stat finfo;
+ int character, r;
+ char *f;
+ const char *fn;
+
+ /* Short-circuit a //server on cygwin, since that will always behave as
+ a directory. */
+#if __CYGWIN__
+ if (filename[0] == '/' && filename[1] == '/' && strchr (filename+2, '/') == 0)
+ return '/';
+#endif
+
+ f = 0;
+ if (rl_filename_stat_hook)
+ {
+ f = savestring (filename);
+ (*rl_filename_stat_hook) (&f);
+ fn = f;
+ }
+ else
+ fn = filename;
+
+#if defined (HAVE_LSTAT) && defined (S_ISLNK)
+ r = lstat (fn, &finfo);
+#else
+ r = stat (fn, &finfo);
+#endif
+
+ if (r == -1)
+ {
+ xfree (f);
+ return (0);
+ }
+
+ 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))
+ {
+#if defined (_WIN32) && !defined (__CYGWIN__)
+ char *ext;
+
+ /* Windows doesn't do access and X_OK; check file extension instead */
+ ext = strrchr (fn, '.');
+ if (ext && (_rl_stricmp (ext, ".exe") == 0 ||
+ _rl_stricmp (ext, ".cmd") == 0 ||
+ _rl_stricmp (ext, ".bat") == 0 ||
+ _rl_stricmp (ext, ".com") == 0))
+ character = '*';
+#else
+ if (access (filename, X_OK) == 0)
+ character = '*';
+#endif
+ }
+
+ xfree (f);
+ return (character);
+}
+#endif /* VISIBLE_STATS */
+
+#if defined (COLOR_SUPPORT)
+static int
+colored_stat_start (const char *filename)
+{
+ _rl_set_normal_color ();
+ return (_rl_print_color_indicator (filename));
+}
+
+static void
+colored_stat_end (void)
+{
+ _rl_prep_non_filename_text ();
+ _rl_put_indicator (&_rl_color_indicator[C_CLR_TO_EOL]);
+}
+
+static int
+colored_prefix_start (void)
+{
+ _rl_set_normal_color ();
+ return (_rl_print_prefix_color ());
+}
+
+static void
+colored_prefix_end (void)
+{
+ colored_stat_end (); /* for now */
+}
+#endif
+
+/* 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 (char *pathname)
+{
+ char *temp, *x;
+
+ if (rl_filename_completion_desired == 0) /* don't need to do anything */
+ return (pathname);
+
+ temp = strrchr (pathname, '/');
+#if defined (__MSDOS__) || defined (_WIN32)
+ if (temp == 0 && ISALPHA ((unsigned char)pathname[0]) && pathname[1] == ':')
+ temp = pathname + 1;
+#endif
+
+ if (temp == 0 || *temp == '\0')
+ return (pathname);
+ else if (temp[1] == 0 && temp == pathname)
+ 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')
+ {
+ for (x = temp - 1; x > pathname; x--)
+ if (*x == '/')
+ break;
+ return ((*x == '/') ? x + 1 : pathname);
+ }
+ else
+ return ++temp;
+}
+
+/* Compute width of STRING when displayed on screen by print_filename */
+static int
+fnwidth (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
+
+ width = pos = 0;
+ while (string[pos])
+ {
+ if (CTRL_CHAR (string[pos]) || string[pos] == 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
+ }
+ }
+
+ return width;
+}
+
+#define ELLIPSIS_LEN 3
+
+static int
+fnprint (const char *to_print, int prefix_bytes, const char *real_pathname)
+{
+ int printed_len, w;
+ const char *s;
+ int common_prefix_len, print_len;
+#if defined (HANDLE_MULTIBYTE)
+ mbstate_t ps;
+ const char *end;
+ size_t tlen;
+ int width;
+ wchar_t wc;
+
+ print_len = strlen (to_print);
+ end = to_print + print_len + 1;
+ memset (&ps, 0, sizeof (mbstate_t));
+#else
+ print_len = strlen (to_print);
+#endif
+
+ printed_len = common_prefix_len = 0;
+
+ /* Don't print only the ellipsis if the common prefix is one of the
+ possible completions. Only cut off prefix_bytes if we're going to be
+ printing the ellipsis, which takes precedence over coloring the
+ completion prefix (see print_filename() below). */
+ if (_rl_completion_prefix_display_length > 0 && prefix_bytes >= print_len)
+ prefix_bytes = 0;
+
+#if defined (COLOR_SUPPORT)
+ if (_rl_colored_stats && (prefix_bytes == 0 || _rl_colored_completion_prefix <= 0))
+ colored_stat_start (real_pathname);
+#endif
+
+ if (prefix_bytes && _rl_completion_prefix_display_length > 0)
+ {
+ char ellipsis;
+
+ ellipsis = (to_print[prefix_bytes] == '.') ? '_' : '.';
+ for (w = 0; w < ELLIPSIS_LEN; w++)
+ putc (ellipsis, rl_outstream);
+ printed_len = ELLIPSIS_LEN;
+ }
+#if defined (COLOR_SUPPORT)
+ else if (prefix_bytes && _rl_colored_completion_prefix > 0)
+ {
+ common_prefix_len = prefix_bytes;
+ prefix_bytes = 0;
+ /* XXX - print color indicator start here */
+ colored_prefix_start ();
+ }
+#endif
+
+ s = to_print + prefix_bytes;
+ 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))
+ {
+ 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
+ }
+ if (common_prefix_len > 0 && (s - to_print) >= common_prefix_len)
+ {
+#if defined (COLOR_SUPPORT)
+ /* printed bytes = s - to_print */
+ /* printed bytes should never be > but check for paranoia's sake */
+ colored_prefix_end ();
+ if (_rl_colored_stats)
+ colored_stat_start (real_pathname); /* XXX - experiment */
+#endif
+ common_prefix_len = 0;
+ }
+ }
+
+#if defined (COLOR_SUPPORT)
+ /* XXX - unconditional for now */
+ if (_rl_colored_stats)
+ colored_stat_end ();
+#endif
+
+ return printed_len;
+}
+
+/* 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. */
+
+static int
+print_filename (char *to_print, char *full_pathname, int prefix_bytes)
+{
+ int printed_len, extension_char, slen, tlen;
+ char *s, c, *new_full_pathname, *dn;
+
+ extension_char = 0;
+#if defined (COLOR_SUPPORT)
+ /* Defer printing if we want to prefix with a color indicator */
+ if (_rl_colored_stats == 0 || rl_filename_completion_desired == 0)
+#endif
+ printed_len = fnprint (to_print, prefix_bytes, to_print);
+
+ if (rl_filename_completion_desired && (
+#if defined (VISIBLE_STATS)
+ rl_visible_stats ||
+#endif
+#if defined (COLOR_SUPPORT)
+ _rl_colored_stats ||
+#endif
+ _rl_complete_mark_directories))
+ {
+ /* 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] = '/';
+ strcpy (new_full_pathname + slen + 1, to_print);
+
+#if defined (VISIBLE_STATS)
+ if (rl_visible_stats)
+ extension_char = stat_char (new_full_pathname);
+ else
+#endif
+ if (_rl_complete_mark_directories)
+ {
+ dn = 0;
+ if (rl_directory_completion_hook == 0 && rl_filename_stat_hook)
+ {
+ dn = savestring (new_full_pathname);
+ (*rl_filename_stat_hook) (&dn);
+ xfree (new_full_pathname);
+ new_full_pathname = dn;
+ }
+ if (path_isdir (new_full_pathname))
+ extension_char = '/';
+ }
+
+ /* Move colored-stats code inside fnprint() */
+#if defined (COLOR_SUPPORT)
+ if (_rl_colored_stats)
+ printed_len = fnprint (to_print, prefix_bytes, new_full_pathname);
+#endif
+
+ xfree (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 (_rl_complete_mark_directories && path_isdir (s))
+ extension_char = '/';
+
+ /* Move colored-stats code inside fnprint() */
+#if defined (COLOR_SUPPORT)
+ if (_rl_colored_stats)
+ printed_len = fnprint (to_print, prefix_bytes, s);
+#endif
+ }
+
+ xfree (s);
+ if (extension_char)
+ {
+ putc (extension_char, rl_outstream);
+ printed_len++;
+ }
+ }
+
+ return printed_len;
+}
+
+static char *
+rl_quote_filename (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;
+}
+
+/* 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 (int *fp, int *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;
+ }
+
+ /* 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] == '\\')
+ {
+ pass_next = 1;
+ found_quote |= RL_QF_BACKSLASH;
+ continue;
+ }
+
+ 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;
+ /* 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 (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];
+
+ if (strchr (brkchars, scan) == 0)
+ continue;
+
+ /* 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;
+
+ /* 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 (char *text, int start, int end, rl_compentry_func_t *our_func, int found_quote, int quote_char)
+{
+ char **matches;
+
+ 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 (RL_SIG_RECEIVED())
+ {
+ _rl_free_match_list (matches);
+ matches = 0;
+ RL_CHECK_SIGNALS ();
+ }
+
+ if (matches || rl_attempted_completion_over)
+ {
+ rl_attempted_completion_over = 0;
+ return (matches);
+ }
+ }
+
+ /* XXX -- filename dequoting moved into rl_filename_completion_function */
+
+ /* rl_completion_matches will check for signals as well to avoid a long
+ delay while reading a directory. */
+ matches = rl_completion_matches (text, our_func);
+ if (RL_SIG_RECEIVED())
+ {
+ _rl_free_match_list (matches);
+ matches = 0;
+ RL_CHECK_SIGNALS ();
+ }
+ return matches;
+}
+
+/* Filter out duplicates in MATCHES. This frees up the strings in
+ MATCHES. */
+static char **
+remove_duplicate_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 && rl_sort_completion_matches)
+ 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)
+ {
+ xfree (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)
+ xfree (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)
+ {
+ xfree (temp_array[1]);
+ temp_array[1] = (char *)NULL;
+ }
+ return (temp_array);
+}
+
+/* Find the common prefix of the list of matches, and put it into
+ matches[0]. */
+static int
+compute_lcd_of_matches (char **match_list, int matches, const char *text)
+{
+ register int i, c1, c2, si;
+ int low; /* Count of max-matched characters. */
+ int lx;
+ char *dtext; /* dequoted TEXT, if needed */
+#if defined (HANDLE_MULTIBYTE)
+ int v;
+ size_t v1, v2;
+ 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)
+ {
+ v1 = mbrtowc(&wc1, match_list[i]+si, strlen (match_list[i]+si), &ps1);
+ v2 = mbrtowc (&wc2, match_list[i+1]+si, strlen (match_list[i+1]+si), &ps2);
+ if (MB_INVALIDCH (v1) || MB_INVALIDCH (v2))
+ {
+ if (c1 != c2) /* do byte comparison */
+ break;
+ continue;
+ }
+ wc1 = towlower (wc1);
+ wc2 = towlower (wc2);
+ if (wc1 != wc2)
+ break;
+ else if (v1 > 1)
+ si += v1 - 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)
+ {
+ mbstate_t ps_back;
+ 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;
+ }
+ else
+#endif
+ if (c1 != c2)
+ break;
+ }
+
+ if (low > si)
+ low = si;
+ }
+
+ /* 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 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])
+ /* 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)
{
- if (rl_editing_mode != vi_mode)
- ding (); /* There are other matches remaining. */
+ dtext = (*rl_filename_dequoting_function) ((char *)text, rl_completion_quote_character);
+ text = dtext;
}
- else
+
+ /* sort the list to get consistent answers. */
+ if (rl_sort_completion_matches)
+ qsort (match_list+1, matches, sizeof(char *), (QSFUNC *)_rl_qsort_string_compare);
+
+ si = strlen (text);
+ lx = (si <= low) ? si : low; /* check shorter of text and matches */
+ /* Try to preserve the case of what the user typed in the presence of
+ multiple matches: check each match for something that matches
+ what the user typed taking case into account; use it up to common
+ length of matches if one is found. If not, just use first match. */
+ for (i = 1; i <= matches; i++)
+ if (strncmp (match_list[i], text, lx) == 0)
+ {
+ strncpy (match_list[0], match_list[i], low);
+ break;
+ }
+ /* no casematch, use first entry */
+ if (i > matches)
+ strncpy (match_list[0], match_list[1], low);
+
+ FREE (dtext);
+ }
+ else
+ strncpy (match_list[0], match_list[1], low);
+
+ match_list[0][low] = '\0';
+ }
+
+ return matches;
+}
+
+static int
+postprocess_matches (char ***matchesp, int matching_filenames)
+{
+ char *t, **matches, **temp_matches;
+ int nmatch, i;
+
+ matches = *matchesp;
+
+ if (matches == 0)
+ return 0;
+
+ /* It seems to me that in all the cases we handle we would like
+ to ignore duplicate possibilities. Scan for the text to
+ insert being identical to the other completions. */
+ if (rl_ignore_completion_duplicates)
+ {
+ temp_matches = remove_duplicate_matches (matches);
+ xfree (matches);
+ matches = temp_matches;
+ }
+
+ /* 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)
{
- char temp_string[4];
- int temp_string_index = 0;
+ t = matches[0];
+ compute_lcd_of_matches (matches, i - 1, t);
+ FREE (t);
+ }
+ }
+ }
+
+ *matchesp = matches;
+ return (1);
+}
+
+static int
+complete_get_screenwidth (void)
+{
+ int cols;
+ char *envcols;
+
+ cols = _rl_completion_columns;
+ if (cols >= 0 && cols <= _rl_screenwidth)
+ return cols;
+ envcols = getenv ("COLUMNS");
+ if (envcols && *envcols)
+ cols = atoi (envcols);
+ if (cols >= 0 && cols <= _rl_screenwidth)
+ return cols;
+ return _rl_screenwidth;
+}
+
+/* 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 (char **matches, int len, int max)
+{
+ int count, limit, printed_len, lines, cols;
+ int i, j, k, l, common_length, sind;
+ char *temp, *t;
+
+ /* Find the length of the prefix common to all items: length as displayed
+ characters (common_length) and as a byte index into the matches (sind) */
+ common_length = sind = 0;
+ if (_rl_completion_prefix_display_length > 0)
+ {
+ t = printable_part (matches[0]);
+ /* check again in case of /usr/src/ */
+ temp = rl_filename_completion_desired ? strrchr (t, '/') : 0;
+ common_length = temp ? fnwidth (temp) : fnwidth (t);
+ sind = temp ? strlen (temp) : strlen (t);
+ if (common_length > max || sind > max)
+ common_length = sind = 0;
+
+ if (common_length > _rl_completion_prefix_display_length && common_length > ELLIPSIS_LEN)
+ max -= common_length - ELLIPSIS_LEN;
+ else
+ common_length = sind = 0;
+ }
+#if defined (COLOR_SUPPORT)
+ else if (_rl_colored_completion_prefix > 0)
+ {
+ t = printable_part (matches[0]);
+ temp = rl_filename_completion_desired ? strrchr (t, '/') : 0;
+ common_length = temp ? fnwidth (temp) : fnwidth (t);
+ sind = temp ? RL_STRLEN (temp+1) : RL_STRLEN (t); /* want portion after final slash */
+ if (common_length > max || sind > max)
+ common_length = sind = 0;
+ }
+#endif
+
+ /* How many items of MAX length can we fit in the screen window? */
+ cols = complete_get_screenwidth ();
+ max += 2;
+ limit = cols / max;
+ if (limit != 1 && (limit * max == cols))
+ limit--;
+
+ /* If cols == 0, limit will end up -1 */
+ if (cols < _rl_screenwidth && limit < 0)
+ limit = 1;
- if (quote_char)
- temp_string[temp_string_index++] = quote_char;
+ /* Avoid a possible floating exception. If max > cols,
+ limit will be 0 and a divide-by-zero fault will result. */
+ if (limit == 0)
+ limit = 1;
- temp_string[temp_string_index++] = delimiter ? delimiter : ' ';
- temp_string[temp_string_index++] = '\0';
+ /* How many iterations of the printing loop? */
+ count = (len + (limit - 1)) / limit;
- if (rl_filename_completion_desired)
+ /* Watch out for special case. If LEN is less than LIMIT, then
+ just do the inner printing loop.
+ 0 < len <= limit implies count = 1. */
+
+ /* Sort the items if they are not already sorted. */
+ if (rl_ignore_completion_duplicates == 0 && rl_sort_completion_matches)
+ qsort (matches + 1, len, sizeof (char *), (QSFUNC *)_rl_qsort_string_compare);
+
+ rl_crlf ();
+
+ 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
{
- struct stat finfo;
- char *filename = tilde_expand (matches[0]);
+ temp = printable_part (matches[l]);
+ printed_len = print_filename (temp, matches[l], sind);
- if ((stat (filename, &finfo) == 0) &&
- S_ISDIR (finfo.st_mode))
+ if (j + 1 < limit)
{
- if (rl_line_buffer[rl_point] != '/')
- rl_insert_text ("/");
+ if (max <= printed_len)
+ putc (' ', rl_outstream);
+ else
+ for (k = 0; k < max - printed_len; k++)
+ putc (' ', rl_outstream);
}
- else
+ }
+ l += count;
+ }
+ rl_crlf ();
+#if defined (SIGWINCH)
+ if (RL_SIG_RECEIVED () && RL_SIGWINCH_RECEIVED() == 0)
+#else
+ if (RL_SIG_RECEIVED ())
+#endif
+ return;
+ 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], sind);
+ /* Have we reached the end of this line? */
+#if defined (SIGWINCH)
+ if (RL_SIG_RECEIVED () && RL_SIGWINCH_RECEIVED() == 0)
+#else
+ if (RL_SIG_RECEIVED ())
+#endif
+ return;
+ if (matches[i+1])
+ {
+ if (limit == 1 || (i && (limit > 1) && (i % limit) == 0))
+ {
+ rl_crlf ();
+ lines++;
+ if (_rl_page_completions && lines >= _rl_screenheight - 1)
{
- if (rl_point == rl_end)
- rl_insert_text (temp_string);
+ lines = _rl_internal_pager (lines);
+ if (lines < 0)
+ return;
}
- free (filename);
}
+ else if (max <= printed_len)
+ putc (' ', rl_outstream);
else
- {
- if (rl_point == rl_end)
- rl_insert_text (temp_string);
- }
+ for (k = 0; k < max - printed_len; k++)
+ putc (' ', rl_outstream);
}
- break;
+ }
+ rl_crlf ();
+ }
+}
- case '*':
- {
- int i = 1;
+/* 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 (char **matches)
+{
+ int len, max, i;
+ char *temp;
- rl_delete_text (start, rl_point);
- rl_point = start;
- rl_begin_undo_group ();
- if (matches[1])
- {
- while (matches[i])
- {
- rl_insert_text (matches[i++]);
- rl_insert_text (" ");
- }
- }
- else
- {
- rl_insert_text (matches[0]);
- rl_insert_text (" ");
- }
- rl_end_undo_group ();
- }
- break;
+ /* Move to the last visible line of a possibly-multiple-line command. */
+ _rl_move_vert (_rl_vis_botlin);
- case '?':
- {
- int len, count, limit, max = 0;
- int j, k, l;
+ /* Handle simple case first. What if there is only one answer? */
+ if (matches[1] == 0)
+ {
+ temp = printable_part (matches[0]);
+ rl_crlf ();
+ print_filename (temp, matches[0], 0);
+ rl_crlf ();
- /* Handle simple case first. What if there is only one answer? */
- if (!matches[1])
- {
- char *temp = (char *)NULL;
+ rl_forced_update_display ();
+ rl_display_fixed = 1;
- if (rl_filename_completion_desired)
- temp = strrchr (matches[0], '/');
+ return;
+ }
- if (!temp)
- temp = matches[0];
- else
- temp++;
+ /* 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);
- crlf ();
- fprintf (rl_outstream, "%s", temp);
-#if defined (VISIBLE_STATS)
- if (rl_filename_completion_desired && rl_visible_stats)
- {
- int extension_char;
+ if (len > max)
+ max = len;
+ }
- extension_char = stat_char (matches[0]);
- if (extension_char)
- putc (extension_char, rl_outstream);
- }
-#endif /* VISIBLE_STATS */
- crlf ();
- goto restart;
- }
+ len = i - 1;
- /* There is more than one answer. Find out how many there are,
- and find out what the maximum printed length of a single entry
- is. */
- for (i = 1; matches[i]; i++)
- {
- char *temp;
- int name_length;
+ /* If 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 ((completion_y_or_n = get_y_or_n (0)) == 0)
+ {
+ rl_crlf ();
- /* 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;
+ rl_forced_update_display ();
+ rl_display_fixed = 1;
+
+ return;
+ }
+ }
- if (!temp)
- temp = matches[i];
- else
- temp++;
+ rl_display_match_list (matches, len, max);
- name_length = strlen (temp);
+ rl_forced_update_display ();
+ rl_display_fixed = 1;
+}
- if (name_length > max)
- max = name_length;
- }
+/* qc == pointer to quoting character, if any */
+static char *
+make_quoted_replacement (char *match, int mtype, char *qc)
+{
+ int should_quote, do_replace;
+ char *replacement;
- len = i - 1;
+ /* 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);
+}
- /* 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;
- }
- }
+static void
+insert_match (char *match, int start, int mtype, char *qc)
+{
+ char *replacement, *r;
+ char oqc;
+ int end, rlen;
- /* 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--;
+ oqc = qc ? *qc : '\0';
+ replacement = make_quoted_replacement (match, mtype, qc);
- /* 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;
+ /* Now insert the match. */
+ if (replacement)
+ {
+ rlen = strlen (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--;
+ end = rl_point - 1;
+ /* Don't double a closing quote character */
+ if (qc && *qc && end && rl_line_buffer[rl_point] == *qc && replacement[rlen - 1] == *qc)
+ end++;
+ if (_rl_skip_completed_text)
+ {
+ r = replacement;
+ while (start < rl_end && *r && rl_line_buffer[start] == *r)
+ {
+ start++;
+ r++;
+ }
+ if (start <= end || *r)
+ _rl_replace_text (r, start, end);
+ rl_point = start + strlen (r);
+ }
+ else
+ _rl_replace_text (replacement, start, end);
+ if (replacement != match)
+ xfree (replacement);
+ }
+}
- /* How many iterations of the printing loop? */
- count = (len + (limit - 1)) / limit;
+/* 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 (char *text, int delimiter, int quote_char, int nontrivial_match)
+{
+ char temp_string[4], *filename, *fn;
+ int temp_string_index, s;
+ struct stat finfo;
- /* Watch out for special case. If LEN is less than LIMIT, then
- just do the inner printing loop. */
- if (len < limit)
- count = 1;
+ 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;
- /* Sort the items if they are not already sorted. */
- if (!rl_ignore_completion_duplicates)
- qsort (matches, len, sizeof (char *), compare_strings);
+ 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;
- /* Print the sorted items, up-and-down alphabetically, like
- ls might. */
- crlf ();
+ temp_string[temp_string_index++] = '\0';
- for (i = 1; i < count + 1; i++)
- {
- for (j = 0, l = i; j < limit; j++)
- {
- if (l > len || !matches[l])
- {
- break;
- }
- else
- {
- char *temp = (char *)NULL;
- int printed_length;
-
- if (rl_filename_completion_desired)
- temp = strrchr (matches[l], '/');
-
- if (!temp)
- temp = matches[l];
- else
- temp++;
-
- printed_length = strlen (temp);
- fprintf (rl_outstream, "%s", temp);
+ if (rl_filename_completion_desired)
+ {
+ filename = tilde_expand (text);
+ if (rl_filename_stat_hook)
+ {
+ fn = savestring (filename);
+ (*rl_filename_stat_hook) (&fn);
+ xfree (filename);
+ filename = fn;
+ }
+ 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) && path_isdir (filename))
+ ;
+#endif
+ else
+ {
+ if (rl_point == rl_end && temp_string_index)
+ rl_insert_text (temp_string);
+ }
+ xfree (filename);
+ }
+ else
+ {
+ if (rl_point == rl_end && temp_string_index)
+ rl_insert_text (temp_string);
+ }
-#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 */
+ return (temp_string_index);
+}
+
+static void
+insert_all_matches (char **matches, int point, char *qc)
+{
+ 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])
+ {
+ 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])
+ xfree (rp);
+ }
+ }
+ else
+ {
+ rp = make_quoted_replacement (matches[0], SINGLE_MATCH, qc);
+ rl_insert_text (rp);
+ rl_insert_text (" ");
+ if (rp != matches[0])
+ xfree (rp);
+ }
+ rl_end_undo_group ();
+}
+
+void
+_rl_free_match_list (char **matches)
+{
+ register int i;
+
+ if (matches == 0)
+ return;
+
+ for (i = 0; matches[i]; i++)
+ xfree (matches[i]);
+ xfree (matches);
+}
+
+/* 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 (int what_to_do)
+{
+ 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;
+ int tlen, mlen;
+
+ RL_SETSTATE(RL_STATE_COMPLETING);
+
+ set_completion_defaults (what_to_do);
+
+ 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';
+
+ 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);
+
+ 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;
+ if (what_to_do == '!' || what_to_do == '@')
+ tlen = strlen (text);
+ xfree (text);
+
+ if (matches == 0)
+ {
+ rl_ding ();
+ FREE (saved_line_buffer);
+ completion_changed_buffer = 0;
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
+ _rl_reset_completion_state ();
+ return (0);
+ }
+
+ /* 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)
+ {
+ rl_ding ();
+ FREE (saved_line_buffer);
+ completion_changed_buffer = 0;
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
+ _rl_reset_completion_state ();
+ return (0);
+ }
+
+ switch (what_to_do)
+ {
+ case TAB:
+ case '!':
+ case '@':
+ /* Insert the first match with proper quoting. */
+ if (what_to_do == TAB)
+ {
+ if (*matches[0])
+ insert_match (matches[0], start, matches[1] ? MULT_MATCH : SINGLE_MATCH, "e_char);
+ }
+ else if (*matches[0] && matches[1] == 0)
+ /* should we perform the check only if there are multiple matches? */
+ insert_match (matches[0], start, matches[1] ? MULT_MATCH : SINGLE_MATCH, "e_char);
+ else if (*matches[0]) /* what_to_do != TAB && multiple matches */
+ {
+ mlen = *matches[0] ? strlen (matches[0]) : 0;
+ if (mlen >= tlen)
+ 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);
+
+ break;
+
+ case '*':
+ insert_all_matches (matches, start, "e_char);
+ break;
+
+ case '?':
+ if (rl_completion_display_matches_hook == 0)
+ {
+ _rl_sigcleanup = _rl_complete_sigcleanup;
+ _rl_sigcleanarg = matches;
+ _rl_complete_display_matches_interrupt = 0;
+ }
+ display_matches (matches);
+ if (_rl_complete_display_matches_interrupt)
+ {
+ matches = 0; /* already freed by rl_complete_sigcleanup */
+ _rl_complete_display_matches_interrupt = 0;
+ if (rl_signal_event_hook)
+ (*rl_signal_event_hook) (); /* XXX */
+ }
+ _rl_sigcleanup = 0;
+ _rl_sigcleanarg = 0;
+ break;
+
+ default:
+ _rl_ttymsg ("bad value %d for what_to_do in rl_complete", what_to_do);
+ rl_ding ();
+ FREE (saved_line_buffer);
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
+ _rl_free_match_list (matches);
+ _rl_reset_completion_state ();
+ 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;
+ xfree (saved_line_buffer);
+ }
+
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
+ _rl_reset_completion_state ();
+
+ RL_CHECK_SIGNALS ();
+ return 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.
+ The first entry in the returned array is the substitution for TEXT.
+ The remaining entries are the possible completions.
+ The array is terminated with a NULL pointer.
+
+ ENTRY_FUNCTION is a function of two args, and returns a (char *).
+ The first argument is TEXT.
+ The second is a state argument; it should be zero on the first call, and
+ non-zero on subsequent calls. It returns a NULL pointer to the caller
+ when there are no more matches.
+ */
+char **
+rl_completion_matches (const char *text, rl_compentry_func_t *entry_function)
+{
+ register int i;
+
+ /* Number of slots in match_list. */
+ int match_list_size;
- if (j + 1 < limit)
- {
- for (k = 0; k < max - printed_length; k++)
- putc (' ', rl_outstream);
- }
- }
- l += count;
- }
- crlf ();
- }
- restart:
+ /* The list of matches. */
+ char **match_list;
- rl_on_new_line ();
- }
- break;
+ /* Number of matches actually found. */
+ int matches;
- default:
- fprintf (stderr, "\r\nreadline: bad value for what_to_do in rl_complete\n");
- abort ();
- }
+ /* Temporary string binder. */
+ char *string;
- for (i = 0; matches[i]; i++)
- free (matches[i]);
- free (matches);
- }
+ matches = 0;
+ match_list_size = 10;
+ match_list = (char **)xmalloc ((match_list_size + 1) * sizeof (char *));
+ match_list[1] = (char *)NULL;
- /* Check to see if the line has changed through all of this manipulation. */
- if (saved_line_buffer)
+ while (string = (*entry_function) (text, matches))
{
- if (strcmp (rl_line_buffer, saved_line_buffer) != 0)
- completion_changed_buffer = 1;
- else
- completion_changed_buffer = 0;
+ if (RL_SIG_RECEIVED ())
+ {
+ /* Start at 1 because we don't set matches[0] in this function.
+ Only free the list members if we're building match list from
+ rl_filename_completion_function, since we know that doesn't
+ free the strings it returns. */
+ if (entry_function == rl_filename_completion_function)
+ {
+ for (i = 1; match_list[i]; i++)
+ xfree (match_list[i]);
+ }
+ xfree (match_list);
+ match_list = 0;
+ match_list_size = 0;
+ matches = 0;
+ RL_CHECK_SIGNALS ();
+ }
- free (saved_line_buffer);
- }
-}
+ if (matches + 1 >= match_list_size)
+ match_list = (char **)xrealloc
+ (match_list, ((match_list_size += 10) + 1) * sizeof (char *));
-#if defined (VISIBLE_STATS)
-/* Return the character which best describes FILENAME.
- `@' for symbolic links
- `/' for directories
- `*' for executables
- `=' for sockets */
-static int
-stat_char (filename)
- char *filename;
-{
- struct stat finfo;
- int character = 0;
+ if (match_list == 0)
+ return (match_list);
- if (stat (filename, &finfo) == -1)
- return (character);
+ match_list[++matches] = string;
+ match_list[matches + 1] = (char *)NULL;
+ }
- if (S_ISDIR (finfo.st_mode))
- character = '/';
-#if defined (S_ISLNK)
- else if (S_ISLNK (finfo.st_mode))
- character = '@';
-#endif /* S_ISLNK */
-#if defined (S_ISSOCK)
- else if (S_ISSOCK (finfo.st_mode))
- character = '=';
-#endif /* S_ISSOCK */
- else if (S_ISREG (finfo.st_mode))
+ /* If 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. */
{
- if (access (filename, X_OK) == 0)
- character = '*';
+ xfree (match_list);
+ match_list = (char **)NULL;
}
- return (character);
-}
-#endif /* VISIBLE_STATS */
-
-/* Stupid comparison routine for qsort () ing strings. */
-static int
-compare_strings (s1, s2)
- char **s1, **s2;
-{
- return (strcmp (*s1, *s2));
+ return (match_list);
}
/* 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;
+rl_username_completion_function (const char *text, int state)
{
-#if defined (MINIMAL)
+#if defined (__WIN32__) || defined (__OPENNT)
return (char *)NULL;
-#else /* !MINIMAL */
+#else /* !__WIN32__ && !__OPENNT) */
static char *username = (char *)NULL;
static struct passwd *entry;
static int namelen, first_char, first_char_loc;
+ char *value;
- if (!state)
+ if (state == 0)
{
- if (username)
- free (username);
+ FREE (username);
first_char = *text;
-
- if (first_char == '~')
- first_char_loc = 1;
- else
- first_char_loc = 0;
+ first_char_loc = first_char == '~';
username = savestring (&text[first_char_loc]);
namelen = strlen (username);
+#if defined (HAVE_GETPWENT)
setpwent ();
+#endif
}
+#if defined (HAVE_GETPWENT)
while (entry = getpwent ())
{
- if (strncmp (username, entry->pw_name, namelen) == 0)
+ /* Null usernames should result in all users as possible completions. */
+ if (namelen == 0 || (STREQN (username, entry->pw_name, namelen)))
break;
}
+#endif
- if (!entry)
+ if (entry == 0)
{
+#if defined (HAVE_GETPWENT)
endpwent ();
+#endif
return ((char *)NULL);
}
else
{
- char *value = (char *)xmalloc (2 + strlen (entry->pw_name));
+ value = (char *)xmalloc (2 + strlen (entry->pw_name));
*value = *text;
return (value);
}
-#endif /* !MINIMAL */
+#endif /* !__WIN32__ && !__OPENNT */
}
-\f
-/* **************************************************************** */
-/* */
-/* Completion */
-/* */
-/* **************************************************************** */
-
-/* Non-zero means that case is not significant in completion. */
-int completion_case_fold = 0;
-
-/* Return an array of (char *) which is a list of completions for TEXT.
- If there are no completions, return a NULL pointer.
- The first entry in the returned array is the substitution for TEXT.
- The remaining entries are the possible completions.
- The array is terminated with a NULL pointer.
- ENTRY_FUNCTION is a function of two args, and returns a (char *).
- The first argument is TEXT.
- The second is a state argument; it should be zero on the first call, and
- non-zero on subsequent calls. It returns a NULL pointer to the caller
- when there are no more matches.
- */
-char **
-completion_matches (text, entry_function)
- char *text;
- CPFunction *entry_function;
+/* Return non-zero if CONVFN matches FILENAME up to the length of FILENAME
+ (FILENAME_LEN). If _rl_completion_case_fold is set, compare without
+ regard to the alphabetic case of characters. If
+ _rl_completion_case_map is set, make `-' and `_' equivalent. CONVFN is
+ the possibly-converted directory entry; FILENAME is what the user typed. */
+static int
+complete_fncmp (const char *convfn, int convlen, const char *filename, int filename_len)
{
- /* Number of slots in match_list. */
- int match_list_size;
-
- /* The list of matches. */
- char **match_list =
- (char **)xmalloc (((match_list_size = 10) + 1) * sizeof (char *));
-
- /* Number of matches actually found. */
- int matches = 0;
-
- /* Temporary string binder. */
- char *string;
+ register char *s1, *s2;
+ int d, len;
+#if defined (HANDLE_MULTIBYTE)
+ size_t v1, v2;
+ mbstate_t ps1, ps2;
+ wchar_t wc1, wc2;
+#endif
- match_list[1] = (char *)NULL;
+#if defined (HANDLE_MULTIBYTE)
+ memset (&ps1, 0, sizeof (mbstate_t));
+ memset (&ps2, 0, sizeof (mbstate_t));
+#endif
- while (string = (*entry_function) (text, matches))
- {
- if (matches + 1 == match_list_size)
- match_list = (char **)xrealloc
- (match_list, ((match_list_size += 10) + 1) * sizeof (char *));
+ if (filename_len == 0)
+ return 1;
+ if (convlen < filename_len)
+ return 0;
- match_list[++matches] = string;
- match_list[matches + 1] = (char *)NULL;
- }
+ len = filename_len;
+ s1 = (char *)convfn;
+ s2 = (char *)filename;
- /* If there were any matches, then look through them finding out the
- lowest common denominator. That then becomes match_list[0]. */
- if (matches)
+ /* Otherwise, if these match up to the length of filename, then
+ it is a match. */
+ if (_rl_completion_case_fold && _rl_completion_case_map)
{
- register int i = 1;
- int low = 100000; /* Count of max-matched characters. */
-
- /* If only one match, just use that. */
- if (matches == 1)
+ /* Case-insensitive comparison treating _ and - as equivalent */
+#if defined (HANDLE_MULTIBYTE)
+ if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
{
- match_list[0] = match_list[1];
- match_list[1] = (char *)NULL;
+ do
+ {
+ v1 = mbrtowc (&wc1, s1, convlen, &ps1);
+ v2 = mbrtowc (&wc2, s2, filename_len, &ps2);
+ if (v1 == 0 && v2 == 0)
+ return 1;
+ else if (MB_INVALIDCH (v1) || MB_INVALIDCH (v2))
+ {
+ if (*s1 != *s2) /* do byte comparison */
+ return 0;
+ else if ((*s1 == '-' || *s1 == '_') && (*s2 == '-' || *s2 == '_'))
+ return 0;
+ s1++; s2++; len--;
+ continue;
+ }
+ wc1 = towlower (wc1);
+ wc2 = towlower (wc2);
+ s1 += v1;
+ s2 += v1;
+ len -= v1;
+ if ((wc1 == L'-' || wc1 == L'_') && (wc2 == L'-' || wc2 == L'_'))
+ continue;
+ if (wc1 != wc2)
+ return 0;
+ }
+ while (len != 0);
}
else
+#endif
{
- /* Otherwise, compare each member of the list with
- the next, finding out where they stop matching. */
+ do
+ {
+ d = _rl_to_lower (*s1) - _rl_to_lower (*s2);
+ /* *s1 == [-_] && *s2 == [-_] */
+ if ((*s1 == '-' || *s1 == '_') && (*s2 == '-' || *s2 == '_'))
+ d = 0;
+ if (d != 0)
+ return 0;
+ s1++; s2++; /* already checked convlen >= filename_len */
+ }
+ while (--len != 0);
+ }
- while (i < matches)
+ return 1;
+ }
+ else if (_rl_completion_case_fold)
+ {
+#if defined (HANDLE_MULTIBYTE)
+ if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+ {
+ do
{
- register int c1, c2, si;
-
- if (completion_case_fold)
- {
- for (si = 0;
- (c1 = to_lower(match_list[i][si])) &&
- (c2 = to_lower(match_list[i + 1][si]));
- si++)
- if (c1 != c2) break;
- }
- else
+ v1 = mbrtowc (&wc1, s1, convlen, &ps1);
+ v2 = mbrtowc (&wc2, s2, filename_len, &ps2);
+ if (v1 == 0 && v2 == 0)
+ return 1;
+ else if (MB_INVALIDCH (v1) || MB_INVALIDCH (v2))
{
- for (si = 0;
- (c1 = match_list[i][si]) &&
- (c2 = match_list[i + 1][si]);
- si++)
- if (c1 != c2) break;
+ if (*s1 != *s2) /* do byte comparison */
+ return 0;
+ s1++; s2++; len--;
+ continue;
}
-
- if (low > si) low = si;
- i++;
+ wc1 = towlower (wc1);
+ wc2 = towlower (wc2);
+ if (wc1 != wc2)
+ return 0;
+ s1 += v1;
+ s2 += v1;
+ len -= v1;
}
- match_list[0] = (char *)xmalloc (low + 1);
- strncpy (match_list[0], match_list[1], low);
- match_list[0][low] = '\0';
+ while (len != 0);
+ return 1;
}
+ else
+#endif
+ if ((_rl_to_lower (convfn[0]) == _rl_to_lower (filename[0])) &&
+ (convlen >= filename_len) &&
+ (_rl_strnicmp (filename, convfn, filename_len) == 0))
+ return 1;
}
- else /* There were no matches. */
+ else
{
- free (match_list);
- match_list = (char **)NULL;
+ if ((convfn[0] == filename[0]) &&
+ (convlen >= filename_len) &&
+ (strncmp (filename, convfn, filename_len) == 0))
+ return 1;
}
- return (match_list);
+ return 0;
}
/* 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)
- int state;
- char *text;
+rl_filename_completion_function (const char *text, int state)
{
-#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, *dentry, *convfn;
+ int dirlen, dentlen, convlen;
+ int tilde_dirname;
+ 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__) || defined (_WIN32)
+ /* 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__) || (defined (_WIN32) && !defined (__CYGWIN__))
+ /* 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;
+ /* Save the version of the directory that the user typed, dequoting
+ it if necessary. */
+ if (rl_completion_found_quote && rl_filename_dequoting_function)
+ users_dirname = (*rl_filename_dequoting_function) (dirname, rl_completion_quote_character);
+ else
+ users_dirname = savestring (dirname);
- temp_dirname = tilde_expand (dirname);
- free (dirname);
- dirname = temp_dirname;
+ tilde_dirname = 0;
+ if (*dirname == '~')
+ {
+ temp = tilde_expand (dirname);
+ xfree (dirname);
+ dirname = temp;
+ tilde_dirname = 1;
+ }
- if (rl_symbolic_link_hook)
- (*rl_symbolic_link_hook) (&dirname);
- }
+ /* We have saved the possibly-dequoted version of the directory name
+ the user typed. Now transform the directory name we're going to
+ pass to opendir(2). The directory rewrite hook modifies only the
+ directory name; the directory completion hook modifies both the
+ directory name passed to opendir(2) and the version the user
+ typed. Both the directory completion and rewrite hooks should perform
+ any necessary dequoting. The hook functions return 1 if they modify
+ the directory name argument. If either hook returns 0, it should
+ not modify the directory name pointer passed as an argument. */
+ if (rl_directory_rewrite_hook)
+ (*rl_directory_rewrite_hook) (&dirname);
+ else if (rl_directory_completion_hook && (*rl_directory_completion_hook) (&dirname))
+ {
+ xfree (users_dirname);
+ users_dirname = savestring (dirname);
+ }
+ else if (tilde_dirname == 0 && rl_completion_found_quote && rl_filename_dequoting_function)
+ {
+ /* delete single and double quotes */
+ xfree (dirname);
+ dirname = savestring (users_dirname);
+ }
directory = opendir (dirname);
+
+ /* Now dequote a non-null filename. FILENAME will not be NULL, but may
+ be empty. */
+ if (*filename && rl_completion_found_quote && rl_filename_dequoting_function)
+ {
+ /* delete single and double quotes */
+ temp = (*rl_filename_dequoting_function) (filename, rl_completion_quote_character);
+ xfree (filename);
+ filename = temp;
+ }
filename_len = strlen (filename);
rl_filename_completion_desired = 1;
/* 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)
+ convfn = dentry = entry->d_name;
+ convlen = dentlen = D_NAMLEN (entry);
+
+ if (rl_filename_rewrite_hook)
+ {
+ convfn = (*rl_filename_rewrite_hook) (dentry, dentlen);
+ convlen = (convfn == dentry) ? dentlen : strlen (convfn);
+ }
+
+ /* 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 (convfn))
+ continue;
+
+ if (convfn[0] != '.' ||
+ (convfn[1] && (convfn[1] != '.' || convfn[2])))
break;
}
else
{
- /* Otherwise, if these match upto the length of filename, then
- it is a match. */
- if (((int)D_NAMLEN (entry)) >= filename_len &&
- (entry->d_name[0] == filename[0]) &&
- (strncmp (filename, entry->d_name, filename_len) == 0))
- {
- break;
- }
+ if (complete_fncmp (convfn, convlen, filename, filename_len))
+ break;
}
}
- if (!entry)
+ if (entry == 0)
{
if (directory)
{
closedir (directory);
directory = (DIR *)NULL;
}
-
if (dirname)
{
- free (dirname);
+ xfree (dirname);
dirname = (char *)NULL;
}
if (filename)
{
- free (filename);
+ xfree (filename);
filename = (char *)NULL;
}
if (users_dirname)
{
- free (users_dirname);
+ xfree (users_dirname);
users_dirname = (char *)NULL;
}
}
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, convfn);
}
else
- {
- temp = (savestring (entry->d_name));
- }
+ temp = savestring (convfn);
+
+ if (convfn != dentry)
+ xfree (convfn);
+
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_old_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_old_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_old_menu_complete (int count, int invoking_key)
{
- 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_old_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;
+ rl_completion_invoking_key = invoking_key;
+
+ RL_SETSTATE(RL_STATE_COMPLETING);
+
+ /* Only the completion entry function can change these. */
+ set_completion_defaults ('%');
+
+ our_func = rl_menu_completion_entry_function;
+ if (our_func == 0)
+ 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. */
+ orig_end = rl_point;
+ found_quote = delimiter = 0;
+ quote_char = '\0';
+
+ 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);
+
+ orig_start = rl_point;
+ rl_point = orig_end;
+
+ 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);
+
+ /* 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)
+ {
+ rl_ding ();
+ FREE (matches);
+ matches = (char **)0;
+ FREE (orig_text);
+ orig_text = (char *)0;
+ completion_changed_buffer = 0;
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
+ return (0);
+ }
+
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
+
+ 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 (match_list_size > 1 && _rl_complete_show_all)
+ display_matches (matches);
}
- else if (rl_line_buffer[start] != '~')
+
+ /* 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. */
+
+ if (matches == 0 || match_list_size == 0)
{
- for (; !whitespace (rl_line_buffer[start]) && start >= 0; start--);
- start++;
+ rl_ding ();
+ FREE (matches);
+ matches = (char **)0;
+ completion_changed_buffer = 0;
+ return (0);
}
- end = start;
- do
+ match_list_index += count;
+ if (match_list_index < 0)
{
- end++;
+ while (match_list_index < 0)
+ match_list_index += match_list_size;
}
- while (!whitespace (rl_line_buffer[end]) && end < rl_end);
-
- if (whitespace (rl_line_buffer[end]) || end >= rl_end)
- end--;
+ else
+ match_list_index %= match_list_size;
- /* 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] == '~')
+ if (match_list_index == 0 && match_list_size > 1)
{
- 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 ();
+ 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]));
}
+ completion_changed_buffer = 1;
return (0);
}
-/* Find the first occurrence in STRING1 of any character from STRING2.
- Return a pointer to the character in STRING1. */
-static char *
-rl_strpbrk (string1, string2)
- char *string1, *string2;
-{
- register char *scan;
+/* The current version of menu completion.
+ The differences between this function and the original are:
- for (; *string1; string1++)
+1. It honors the maximum number of completions variable (completion-query-items)
+2. It appends to the word as usual if there is only one match
+3. It displays the common prefix if there is one, and makes it the first menu
+ choice if the menu-complete-display-prefix option is enabled
+*/
+
+int
+rl_menu_complete (int count, int ignore)
+{
+ 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 nontrivial_lcd = 0;
+ static int full_completion = 0; /* set to 1 if menu completion should reinitialize on next call */
+ static int orig_start, orig_end;
+ static char quote_char;
+ static int delimiter, cstate;
+
+ /* The first time through, we generate the list of matches and set things
+ up to insert them. */
+ if ((rl_last_func != rl_menu_complete && rl_last_func != rl_backward_menu_complete) || full_completion)
{
- for (scan = string2; *scan; scan++)
+ /* Clean up from previous call, if any. */
+ FREE (orig_text);
+ if (matches)
+ _rl_free_match_list (matches);
+
+ match_list_index = match_list_size = 0;
+ matches = (char **)NULL;
+
+ full_completion = 0;
+
+ RL_SETSTATE(RL_STATE_COMPLETING);
+
+ /* Only the completion entry function can change these. */
+ set_completion_defaults ('%');
+
+ our_func = rl_menu_completion_entry_function;
+ if (our_func == 0)
+ 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. */
+ orig_end = rl_point;
+ found_quote = delimiter = 0;
+ quote_char = '\0';
+
+ 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);
+
+ orig_start = rl_point;
+ rl_point = orig_end;
+
+ 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);
+
+ nontrivial_lcd = matches && strcmp (orig_text, matches[0]) != 0;
+
+ /* 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;
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
+ return (0);
}
- }
- return ((char *)NULL);
-}
-#if defined (STATIC_MALLOC)
-\f
-/* **************************************************************** */
-/* */
-/* xmalloc and xrealloc () */
-/* */
-/* **************************************************************** */
+ RL_UNSETSTATE(RL_STATE_COMPLETING);
-static void memory_error_and_abort ();
+ for (match_list_size = 0; matches[match_list_size]; match_list_size++)
+ ;
-static char *
-xmalloc (bytes)
- int bytes;
-{
- char *temp = (char *)malloc (bytes);
+ if (match_list_size == 0)
+ {
+ rl_ding ();
+ FREE (matches);
+ matches = (char **)0;
+ match_list_index = 0;
+ completion_changed_buffer = 0;
+ return (0);
+ }
+
+ /* matches[0] is lcd if match_list_size > 1, but the circular buffer
+ code below should take care of it. */
+ if (*matches[0])
+ {
+ insert_match (matches[0], orig_start, matches[1] ? MULT_MATCH : SINGLE_MATCH, "e_char);
+ orig_end = orig_start + strlen (matches[0]);
+ completion_changed_buffer = STREQ (orig_text, matches[0]) == 0;
+ }
- if (!temp)
- memory_error_and_abort ();
- return (temp);
-}
+ if (match_list_size > 1 && _rl_complete_show_all)
+ {
+ display_matches (matches);
+ /* If there are so many matches that the user has to be asked
+ whether or not he wants to see the matches, menu completion
+ is unwieldy. */
+ if (rl_completion_query_items > 0 && match_list_size >= rl_completion_query_items)
+ {
+ rl_ding ();
+ FREE (matches);
+ matches = (char **)0;
+ full_completion = 1;
+ return (0);
+ }
+ else if (_rl_menu_complete_prefix_first)
+ {
+ rl_ding ();
+ return (0);
+ }
+ }
+ else if (match_list_size <= 1)
+ {
+ append_to_match (matches[0], delimiter, quote_char, nontrivial_lcd);
+ full_completion = 1;
+ return (0);
+ }
+ else if (_rl_menu_complete_prefix_first && match_list_size > 1)
+ {
+ rl_ding ();
+ return (0);
+ }
+ }
-static char *
-xrealloc (pointer, bytes)
- char *pointer;
- int bytes;
-{
- char *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. */
+
+ 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)
+ {
+ while (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 ();
+ if (match_list_index == 0 && match_list_size > 1)
+ {
+ rl_ding ();
+ insert_match (matches[0], 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]));
+ }
- return (temp);
+ completion_changed_buffer = 1;
+ return (0);
}
-static void
-memory_error_and_abort ()
+int
+rl_backward_menu_complete (int count, int key)
{
- fprintf (stderr, "readline: Out of virtual memory!\n");
- abort ();
+ /* Positive arguments to backward-menu-complete translate into negative
+ arguments for menu-complete, and vice versa. */
+ return (rl_menu_complete (-count, key));
}
-#endif /* STATIC_MALLOC */
projects / binutils-gdb.git / blobdiff