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complete.c
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/* complete.c -- filename completion for readline. */
/* Copyright (C) 1987-2021 Free Software Foundation, Inc.
This file is part of the GNU Readline Library (Readline), a library
for reading lines of text with interactive input and history editing.
Readline is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Readline is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Readline. If not, see <http://www.gnu.org/licenses/>.
*/
#define READLINE_LIBRARY
#if defined (__TANDEM)
# define _XOPEN_SOURCE_EXTENDED 1
#endif
#if defined (HAVE_CONFIG_H)
# include <config.h>
#endif
#include <sys/types.h>
#if defined (__TANDEM)
# include <sys/stat.h>
#endif
#include <fcntl.h>
#if defined (HAVE_SYS_FILE_H)
# include <sys/file.h>
#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>
#if !defined (errno)
extern int errno;
#endif /* !errno */
#if defined (HAVE_PWD_H)
#include <pwd.h>
#endif
#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 (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 (char *);
#endif
#if defined (COLOR_SUPPORT)
static int colored_stat_start (const char *);
static void colored_stat_end (void);
static int colored_prefix_start (void);
static void colored_prefix_end (void);
#endif
static int path_isdir (const char *);
static char *rl_quote_filename (char *, int, char *);
static void _rl_complete_sigcleanup (int, void *);
static void set_completion_defaults (int);
static int get_y_or_n (int);
static int _rl_internal_pager (int);
static char *printable_part (char *);
static int fnwidth (const char *);
static int fnprint (const char *, int, const char *);
static int print_filename (char *, char *, int);
static char **gen_completion_matches (char *, int, int, rl_compentry_func_t *, int, int);
static char **remove_duplicate_matches (char **);
static void insert_match (char *, int, int, char *);
static int append_to_match (char *, int, int, int);
static void insert_all_matches (char **, int, char *);
static int complete_fncmp (const char *, int, const char *, int);
static void display_matches (char **);
static int compute_lcd_of_matches (char **, int, const char *);
static int postprocess_matches (char ***, int);
static int compare_match (char *, const char *);
static int complete_get_screenwidth (void);
static char *make_quoted_replacement (char *, int, char *);
/* **************************************************************** */
/* */
/* Completion matching, from readline's point of view. */
/* */
/* **************************************************************** */
/* Variables known only to the readline library. */
/* If non-zero, non-unique completions always show the list of matches. */
int _rl_complete_show_all = 0;
/* If non-zero, non-unique completions show the list of matches, unless it
is not possible to do partial completion and modify the line. */
int _rl_complete_show_unmodified = 0;
/* If non-zero, completed directory names have a slash appended. */
int _rl_complete_mark_directories = 1;
/* If non-zero, the symlinked directory completion behavior introduced in
readline-4.2a is disabled, and symlinks that point to directories have
a slash appended (subject to the value of _rl_complete_mark_directories).
This is user-settable via the mark-symlinked-directories variable. */
int _rl_complete_mark_symlink_dirs = 0;
/* If non-zero, completions are printed horizontally in alphabetical order,
like `ls -x'. */
int _rl_print_completions_horizontally;
/* Non-zero means that case is not significant in filename completion. */
#if (defined (__MSDOS__) && !defined (__DJGPP__)) || (defined (_WIN32) && !defined (__CYGWIN__))
int _rl_completion_case_fold = 1;
#else
int _rl_completion_case_fold = 0;
#endif
/* Non-zero means that `-' and `_' are equivalent when comparing filenames
for completion. */
int _rl_completion_case_map = 0;
/* If zero, don't match hidden files (filenames beginning with a `.' on
Unix) when doing filename completion. */
int _rl_match_hidden_files = 1;
/* 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;
/* 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 */
/* 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 rl_filename_completion_function (), the default filename
completer. */
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.
START and END are indices in RL_LINE_BUFFER saying what the boundaries
of TEXT are.
If this function exists and returns NULL then call the value of
rl_completion_entry_function to try to match, otherwise use the
array of strings returned. */
rl_completion_func_t *rl_attempted_completion_function = (rl_completion_func_t *)NULL;
/* Non-zero means to suppress normal filename completion after the
user-specified completion function has been called. */
int rl_attempted_completion_over = 0;
/* 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. 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\"\\'`@$><=" */
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. */
const char *rl_completer_word_break_characters = 0;
/* 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. */
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. */
const char *rl_special_prefixes = (const char *)NULL;
/* If non-zero, then disallow duplicates in the matches. */
int rl_ignore_completion_duplicates = 1;
/* Non-zero means that the results of the matches are to be treated
as filenames. This is ALWAYS zero on entry, and can only be changed
within a completion entry finder function. */
int rl_filename_completion_desired = 0;
/* 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.
It consists of a NULL-terminated array of pointers to potential
matching strings. The 1st element (matches[0]) is the maximal
substring that is common to all matches. This function can re-arrange
the list of matches as required, but all elements of the array must be
free()'d if they are deleted. The main intent of this function is
to implement FIGNORE a la SunOS csh. */
rl_compignore_func_t *rl_ignore_some_completions_function = (rl_compignore_func_t *)NULL;
/* Set to a function to quote a filename in an application-specific fashion.
Called with the text to quote, the type of match found (single or multiple)
and a pointer to the quoting character to be used, which the function can
reset if desired. */
rl_quote_func_t *rl_filename_quoting_function = rl_quote_filename;
/* Function to call to remove quoting characters from a filename. Called
before completion is attempted, so the embedded quotes do not interfere
with matching names in the file system. Readline doesn't do anything
with this; it's set only by applications. */
rl_dequote_func_t *rl_filename_dequoting_function = (rl_dequote_func_t *)NULL;
/* Function to call to decide whether or not a word break character is
quoted. If a character is quoted, it does not break words for the
completer. */
rl_linebuf_func_t *rl_char_is_quoted_p = (rl_linebuf_func_t *)NULL;
/* If non-zero, the completion functions don't append anything except a
possible closing quote. This is set to 0 by rl_complete_internal and
may be changed by an application-specific completion function. */
int rl_completion_suppress_append = 0;
/* Character appended to completed words when at the end of the line. The
default is a space. */
int rl_completion_append_character = ' ';
/* If non-zero, the completion functions don't append any closing quote.
This is set to 0 by rl_complete_internal and may be changed by an
application-specific completion function. */
int rl_completion_suppress_quote = 0;
/* Set to any quote character readline thinks it finds before any application
completion function is called. */
int rl_completion_quote_character;
/* Set to a non-zero value if readline found quoting anywhere in the word to
be completed; set before any application completion function is called. */
int rl_completion_found_quote;
/* If non-zero, a slash will be appended to completed filenames that are
symbolic links to directory names, subject to the value of the
mark-directories variable (which is user-settable). This exists so
that application completion functions can override the user's preference
(set via the mark-symlinked-directories variable) if appropriate.
It's set to the value of _rl_complete_mark_symlink_dirs in
rl_complete_internal before any application-specific completion
function is called, so without that function doing anything, the user's
preferences are honored. */
int rl_completion_mark_symlink_dirs;
/* If non-zero, inhibit completion (temporarily). */
int rl_inhibit_completion;
/* Set to the last key used to invoke one of the completion functions */
int rl_completion_invoking_key;
/* If non-zero, sort the completion matches. On by default. */
int rl_sort_completion_matches = 1;
/* Variables local to this file. */
/* Local variable states what happened during the last completion attempt. */
static int completion_changed_buffer;
static int last_completion_failed = 0;
/* The result of the query to the user about displaying completion matches */
static int completion_y_or_n;
static int _rl_complete_display_matches_interrupt = 0;
/*************************************/
/* */
/* Bindable completion functions */
/* */
/*************************************/
/* Complete the word at or before point. You have supplied the function
that does the initial simple matching selection algorithm (see
rl_completion_matches ()). The default is to do filename completion. */
int
rl_complete (int ignore, int invoking_key)
{
rl_completion_invoking_key = invoking_key;
if (rl_inhibit_completion)
return (_rl_insert_char (ignore, invoking_key));
#if 0
else if (rl_last_func == rl_complete && completion_changed_buffer == 0 && last_completion_failed == 0)
#else
else if (rl_last_func == rl_complete && completion_changed_buffer == 0)
#endif
return (rl_complete_internal ('?'));
else if (_rl_complete_show_all)
return (rl_complete_internal ('!'));
else if (_rl_complete_show_unmodified)
return (rl_complete_internal ('@'));
else
return (rl_complete_internal (TAB));
}
/* 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 ('?'));
}
int
rl_insert_completions (int ignore, int invoking_key)
{
rl_completion_invoking_key = invoking_key;
return (rl_complete_internal ('*'));
}
/* 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;
}
/************************************/
/* */
/* Completion utility functions */
/* */
/************************************/
/* Reset public readline state on a signal or other event. */
void
_rl_reset_completion_state (void)
{
rl_completion_found_quote = 0;
rl_completion_quote_character = 0;
}
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;
}
}
/* 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 = ' ';
/* The completion entry function may optionally change this. */
rl_completion_mark_symlink_dirs = _rl_complete_mark_symlink_dirs;
/* Reset private state. */
_rl_complete_display_matches_interrupt = 0;
}
/* The user must press "y" or "n". Non-zero return means "y" pressed. */
static int
get_y_or_n (int for_pager)
{
int c;
/* 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
for (;;)
{
RL_SETSTATE(RL_STATE_MOREINPUT);
c = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
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 ();
}
}
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;
}
static int
path_isdir (const char *filename)
{
struct stat finfo;
return (stat (filename, &finfo) == 0 && S_ISDIR (finfo.st_mode));
}
#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 &&
prefix_bytes > _rl_completion_prefix_display_length)
{
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;