/* bashline.c -- Bash's interface to the readline library. */
-/* Copyright (C) 1987-2011 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2013 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
# include <netdb.h>
#endif
+#include <signal.h>
+
#include <stdio.h>
#include "chartypes.h"
#include "bashansi.h"
#include "findcmd.h"
#include "pathexp.h"
#include "shmbutil.h"
+#include "trap.h"
#include "builtins/common.h"
#endif /* BRACE_COMPLETION */
/* To avoid including curses.h/term.h/termcap.h and that whole mess. */
+#ifdef _MINIX
+extern int tputs __P((const char *string, int nlines, void (*outx)(int)));
+#else
extern int tputs __P((const char *string, int nlines, int (*outx)(int)));
+#endif
/* Forward declarations */
/* Helper functions for Readline. */
static char *restore_tilde __P((char *, char *));
+static char *maybe_restore_tilde __P((char *, char *));
static char *bash_filename_rewrite_hook __P((char *, int));
+
static void bash_directory_expansion __P((char **));
+static int bash_filename_stat_hook __P((char **));
+static int bash_command_name_stat_hook __P((char **));
static int bash_directory_completion_hook __P((char **));
static int filename_completion_ignore __P((char **));
static int bash_push_line __P((void));
+static int executable_completion __P((const char *, int));
+
static rl_icppfunc_t *save_directory_hook __P((void));
-static void reset_directory_hook __P((rl_icppfunc_t *));
+static void restore_directory_hook __P((rl_icppfunc_t));
static void cleanup_expansion_error __P((void));
static void maybe_make_readline_line __P((char *));
static char *bash_dequote_filename __P((char *, int));
static char *quote_word_break_chars __P((char *));
+static void set_filename_bstab __P((const char *));
static char *bash_quote_filename __P((char *, int, char *));
+#ifdef _MINIX
+static void putx __P((int));
+#else
static int putx __P((int));
+#endif
static int bash_execute_unix_command __P((int, int));
static void init_unix_command_map __P((void));
static int isolate_sequence __P((char *, int, int, int *));
static int posix_edit_macros __P((int, int));
#endif
+static int bash_event_hook __P((void));
+
#if defined (PROGRAMMABLE_COMPLETION)
static int find_cmd_start __P((int));
static int find_cmd_end __P((int));
-static char *find_cmd_name __P((int));
+static char *find_cmd_name __P((int, int *, int *));
static char *prog_complete_return __P((const char *, int));
static char **prog_complete_matches;
int dircomplete_spelling = 0;
/* Expand directory names during word/filename completion. */
+#if DIRCOMPLETE_EXPAND_DEFAULT
+int dircomplete_expand = 1;
+int dircomplete_expand_relpath = 1;
+#else
int dircomplete_expand = 0;
int dircomplete_expand_relpath = 0;
+#endif
+
+/* When non-zero, perform `normal' shell quoting on completed filenames
+ even when the completed name contains a directory name with a shell
+ variable referene, so dollar signs in a filename get quoted appropriately.
+ Set to zero to remove dollar sign (and braces or parens as needed) from
+ the set of characters that will be quoted. */
+int complete_fullquote = 1;
static char *bash_completer_word_break_characters = " \t\n\"'@><=;|&(:";
static char *bash_nohostname_word_break_characters = " \t\n\"'><=;|&(:";
static const char *default_filename_quote_characters = " \t\n\\\"'@<>=;|&()#$`?*[!:{~"; /*}*/
static char *custom_filename_quote_characters = 0;
+static char filename_bstab[256];
static rl_hook_func_t *old_rl_startup_hook = (rl_hook_func_t *)NULL;
rl_filename_rewrite_hook = bash_filename_rewrite_hook;
+ rl_filename_stat_hook = bash_filename_stat_hook;
+
/* Tell the filename completer we want a chance to ignore some names. */
rl_ignore_some_completions_function = filename_completion_ignore;
/* characters that need to be quoted when appearing in filenames. */
rl_filename_quote_characters = default_filename_quote_characters;
+ set_filename_bstab (rl_filename_quote_characters);
rl_filename_quoting_function = bash_quote_filename;
rl_filename_dequoting_function = bash_dequote_filename;
bash_readline_initialized = 0;
}
+void
+bashline_set_event_hook ()
+{
+ rl_signal_event_hook = bash_event_hook;
+}
+
+void
+bashline_reset_event_hook ()
+{
+ rl_signal_event_hook = 0;
+}
+
/* On Sun systems at least, rl_attempted_completion_function can end up
getting set to NULL, and rl_completion_entry_function set to do command
word completion if Bash is interrupted while trying to complete a command
rl_completion_entry_function = NULL;
rl_ignore_some_completions_function = filename_completion_ignore;
rl_filename_quote_characters = default_filename_quote_characters;
+ set_filename_bstab (rl_filename_quote_characters);
set_directory_hook ();
+ rl_filename_stat_hook = bash_filename_stat_hook;
+
+ bashline_reset_event_hook ();
}
/* Contains the line to push into readline. */
}
/* Return a NULL terminated list of hostnames which begin with TEXT.
- Initialize the hostname list the first time if neccessary.
+ Initialize the hostname list the first time if necessary.
The array is malloc ()'ed, but not the individual strings. */
static char **
hostnames_matching (text)
/* The equivalent of the Korn shell C-o operate-and-get-next-history-line
editing command. */
static int saved_history_line_to_use = -1;
+static int last_saved_history_line = -1;
+
+#define HISTORY_FULL() (history_is_stifled () && history_length >= history_max_entries)
static int
set_saved_history ()
{
+ /* XXX - compensate for assumption that history was `shuffled' if it was
+ actually not. */
+ if (HISTORY_FULL () &&
+ hist_last_line_added == 0 &&
+ saved_history_line_to_use < history_length - 1)
+ saved_history_line_to_use++;
+
if (saved_history_line_to_use >= 0)
- rl_get_previous_history (history_length - saved_history_line_to_use, 0);
+ {
+ rl_get_previous_history (history_length - saved_history_line_to_use, 0);
+ last_saved_history_line = saved_history_line_to_use;
+ }
saved_history_line_to_use = -1;
rl_startup_hook = old_rl_startup_hook;
return (0);
/* Find the current line, and find the next line to use. */
where = where_history ();
- if ((history_is_stifled () && (history_length >= history_max_entries)) ||
- (where >= history_length - 1))
+ if (HISTORY_FULL () || (where >= history_length - 1))
saved_history_line_to_use = where;
else
saved_history_line_to_use = where + 1;
/* This breaks down when using command-oriented history and are not
finished with the command, so we should not ignore the last command */
using_history ();
+ current_command_line_count++; /* for rl_newline above */
bash_add_history (rl_line_buffer);
+ current_command_line_count = 0; /* for dummy history entry */
bash_add_history ("");
history_lines_this_session++;
using_history ();
#define COMMAND_SEPARATORS ";|&{(`"
/* )} */
+#define COMMAND_SEPARATORS_PLUS_WS ";|&{(` \t"
+/* )} */
+/* check for redirections and other character combinations that are not
+ command separators */
static int
check_redir (ti)
int ti;
if ((this_char == '&' && (prev_char == '<' || prev_char == '>')) ||
(this_char == '|' && prev_char == '>'))
return (1);
- else if ((this_char == '{' && prev_char == '$') || /* } */
- (char_is_quoted (rl_line_buffer, ti)))
+ else if (this_char == '{' && prev_char == '$') /*}*/
+ return (1);
+#if 0 /* Not yet */
+ else if (this_char == '(' && prev_char == '$') /*)*/
+ return (1);
+ else if (this_char == '(' && prev_char == '<') /*)*/
+ return (1);
+#if defined (EXTENDED_GLOB)
+ else if (extended_glob && this_char == '(' && prev_char == '!') /*)*/
+ return (1);
+#endif
+#endif
+ else if (char_is_quoted (rl_line_buffer, ti))
return (1);
return (0);
}
register int s, os;
os = 0;
- while (((s = skip_to_delim (rl_line_buffer, os, COMMAND_SEPARATORS, SD_NOJMP|SD_NOSKIPCMD)) <= start) &&
+ /* Flags == SD_NOJMP only because we want to skip over command substitutions
+ in assignment statements. Have to test whether this affects `standalone'
+ command substitutions as individual words. */
+ while (((s = skip_to_delim (rl_line_buffer, os, COMMAND_SEPARATORS, SD_NOJMP/*|SD_NOSKIPCMD*/)) <= start) &&
rl_line_buffer[s])
os = s+1;
return os;
}
static char *
-find_cmd_name (start)
+find_cmd_name (start, sp, ep)
int start;
+ int *sp, *ep;
{
char *name;
register int s, e;
name = substring (rl_line_buffer, s, e);
+ if (sp)
+ *sp = s;
+ if (ep)
+ *ep = e;
+
return (name);
}
{
int in_command_position, ti, saveti, qc, dflags;
char **matches, *command_separator_chars;
+#if defined (PROGRAMMABLE_COMPLETION)
+ int have_progcomps, was_assignment;
+#endif
command_separator_chars = COMMAND_SEPARATORS;
matches = (char **)NULL;
rl_ignore_some_completions_function = filename_completion_ignore;
rl_filename_quote_characters = default_filename_quote_characters;
+ set_filename_bstab (rl_filename_quote_characters);
set_directory_hook ();
+ rl_filename_stat_hook = bash_filename_stat_hook;
/* Determine if this could be a command word. It is if it appears at
the start of the line (ignoring preceding whitespace), or if it
are prompting at the top level. */
if (current_prompt_string == ps1_prompt)
in_command_position++;
+ else if (parser_in_command_position ())
+ in_command_position++;
}
else if (member (rl_line_buffer[ti], command_separator_chars))
{
#if defined (PROGRAMMABLE_COMPLETION)
/* Attempt programmable completion. */
+ have_progcomps = prog_completion_enabled && (progcomp_size () > 0);
if (matches == 0 && (in_command_position == 0 || text[0] == '\0') &&
- prog_completion_enabled && (progcomp_size () > 0) &&
current_prompt_string == ps1_prompt)
{
- int s, e, foundcs;
+ int s, e, s1, e1, os, foundcs;
char *n;
/* XXX - don't free the members */
free (prog_complete_matches);
prog_complete_matches = (char **)NULL;
- s = find_cmd_start (start);
+ os = start;
+ n = 0;
+ s = find_cmd_start (os);
e = find_cmd_end (end);
- n = find_cmd_name (s);
- if (e == 0 && e == s && text[0] == '\0')
+ do
+ {
+ /* Skip over assignment statements preceding a command name. If we
+ don't find a command name at all, we can perform command name
+ completion. If we find a partial command name, we should perform
+ command name completion on it. */
+ FREE (n);
+ n = find_cmd_name (s, &s1, &e1);
+ s = e1 + 1;
+ }
+ while (was_assignment = assignment (n, 0));
+ s = s1; /* reset to index where name begins */
+
+ /* s == index of where command name begins (reset above)
+ e == end of current command, may be end of line
+ s1 = index of where command name begins
+ e1 == index of where command name ends
+ start == index of where word to be completed begins
+ end == index of where word to be completed ends
+ if (s == start) we are doing command word completion for sure
+ if (e1 == end) we are at the end of the command name and completing it */
+ if (start == 0 && end == 0 && e != 0 && text[0] == '\0') /* beginning of non-empty line */
+ foundcs = 0;
+ else if (start == end && start == s1 && e != 0 && e1 > end) /* beginning of command name, leading whitespace */
+ foundcs = 0;
+ else if (e == 0 && e == s && text[0] == '\0' && have_progcomps) /* beginning of empty line */
prog_complete_matches = programmable_completions ("_EmptycmD_", text, s, e, &foundcs);
- else if (e > s && assignment (n, 0) == 0)
- prog_complete_matches = programmable_completions (n, text, s, e, &foundcs);
+ else if (start == end && text[0] == '\0' && s1 > start && whitespace (rl_line_buffer[start]))
+ foundcs = 0; /* whitespace before command name */
+ else if (e > s && was_assignment == 0 && e1 == end && rl_line_buffer[e] == 0 && whitespace (rl_line_buffer[e-1]) == 0)
+ {
+ /* not assignment statement, but still want to perform command
+ completion if we are composing command word. */
+ foundcs = 0;
+ in_command_position = s == start && STREQ (n, text); /* XXX */
+ }
+ else if (e > s && was_assignment == 0 && have_progcomps)
+ {
+ prog_complete_matches = programmable_completions (n, text, s, e, &foundcs);
+ /* command completion if programmable completion fails */
+ in_command_position = s == start && STREQ (n, text); /* XXX */
+ }
+ else if (s >= e && n[0] == '\0' && text[0] == '\0' && start > 0)
+ {
+ foundcs = 0; /* empty command name following assignments */
+ in_command_position = was_assignment;
+ }
+ else if (s == start && e == end && STREQ (n, text) && start > 0)
+ {
+ foundcs = 0; /* partial command name following assignments */
+ in_command_position = 1;
+ }
else
foundcs = 0;
FREE (n);
const char *text;
int start, end, qc, compflags;
{
- char **matches;
+ char **matches, *t;
matches = (char **)NULL;
if (qc != '\'' && text[1] == '(') /* ) */
matches = rl_completion_matches (text, command_subst_completion_function);
else
- matches = rl_completion_matches (text, variable_completion_function);
+ {
+ matches = rl_completion_matches (text, variable_completion_function);
+ if (matches && matches[0] && matches[1] == 0)
+ {
+ t = savestring (matches[0]);
+ bash_filename_stat_hook (&t);
+ /* doesn't use test_for_directory because that performs tilde
+ expansion */
+ if (file_isdir (t))
+ rl_completion_append_character = '/';
+ free (t);
+ }
+ }
}
/* If the word starts in `~', and there is no slash in the word, then
strvec_dispose (matches);
matches = (char **)0;
}
+ else if (matches && matches[1] && rl_completion_type == '!')
+ {
+ rl_completion_suppress_append = 1;
+ rl_filename_completion_desired = 0;
+ }
}
return (matches);
}
+static int
+bash_command_name_stat_hook (name)
+ char **name;
+{
+ char *cname, *result;
+
+ /* If it's not something we're going to look up in $PATH, just call the
+ normal filename stat hook. */
+ if (absolute_program (*name))
+ return (bash_filename_stat_hook (name));
+
+ cname = *name;
+ /* XXX - we could do something here with converting aliases, builtins,
+ and functions into something that came out as executable, but we don't. */
+ result = search_for_command (cname, 0);
+ if (result)
+ {
+ *name = result;
+ return 1;
+ }
+ return 0;
+}
+
+static int
+executable_completion (filename, searching_path)
+ const char *filename;
+ int searching_path;
+{
+ char *f;
+ int r;
+
+ f = savestring (filename);
+ bash_directory_completion_hook (&f);
+
+ r = searching_path ? executable_file (f) : executable_or_directory (f);
+ free (f);
+ return r;
+}
+
/* This is the function to call when the word to complete is in a position
where a command word can be found. It grovels $PATH, looking for commands
that match. It also scans aliases, function names, and the shell_builtin
static char *path = (char *)NULL;
static char *val = (char *)NULL;
static char *filename_hint = (char *)NULL;
+ static char *fnhint = (char *)NULL;
static char *dequoted_hint = (char *)NULL;
static char *directory_part = (char *)NULL;
static char **glob_matches = (char **)NULL;
#if defined (ALIAS)
static alias_t **alias_list = (alias_t **)NULL;
#endif /* ALIAS */
- char *temp;
+ char *temp, *cval;
/* We have to map over the possibilities for command words. If we have
no state, then make one just for that purpose. */
if (state == 0)
{
+ rl_filename_stat_hook = bash_command_name_stat_hook;
+
if (dequoted_hint && dequoted_hint != hint)
free (dequoted_hint);
if (hint)
if (filename_hint)
free (filename_hint);
- filename_hint = savestring (hint);
+ fnhint = filename_hint = savestring (hint);
istate = 0;
}
else
{
- if (dircomplete_expand && dot_or_dotdot (filename_hint))
+ if (dircomplete_expand && path_dot_or_dotdot (filename_hint))
{
dircomplete_expand = 0;
set_directory_hook ();
{
if (executable_or_directory (val))
{
- if (*hint_text == '~')
+ if (*hint_text == '~' && directory_part)
{
- temp = restore_tilde (val, directory_part);
+ temp = maybe_restore_tilde (val, directory_part);
free (val);
val = temp;
}
if (current_path[0] == '.' && current_path[1] == '\0')
dot_in_path = 1;
+ if (fnhint && fnhint != filename_hint)
+ free (fnhint);
if (filename_hint)
free (filename_hint);
filename_hint = sh_makepath (current_path, hint, 0);
+ /* Need a quoted version (though it doesn't matter much in most
+ cases) because rl_filename_completion_function dequotes the
+ filename it gets, assuming that it's been quoted as part of
+ the input line buffer. */
+ if (strpbrk (filename_hint, "\"'\\"))
+ fnhint = sh_backslash_quote (filename_hint, filename_bstab, 0);
+ else
+ fnhint = filename_hint;
free (current_path); /* XXX */
}
inner:
- val = rl_filename_completion_function (filename_hint, istate);
+ val = rl_filename_completion_function (fnhint, istate);
if (mapping_over == 4 && dircomplete_expand)
set_directory_hook ();
/* If we performed tilde expansion, restore the original
filename. */
if (*hint_text == '~')
- temp = restore_tilde (val, directory_part);
+ temp = maybe_restore_tilde (val, directory_part);
else
temp = savestring (val);
freetemp = 1;
freetemp = match = 0;
}
-#if 0
- /* If we have found a match, and it is an executable file or a
- directory name, return it. */
- if (match && executable_or_directory (val))
-#else
/* If we have found a match, and it is an executable file, return it.
We don't return directory names when searching $PATH, since the
bash execution code won't find executables in directories which
appear in directories in $PATH when they're specified using
- relative pathnames. */
- if (match && (searching_path ? executable_file (val) : executable_or_directory (val)))
+ relative pathnames. */
+#if 0
+ /* If we're not searching $PATH and we have a relative pathname, we
+ need to re-canonicalize it before testing whether or not it's an
+ executable or a directory so the shell treats .. relative to $PWD
+ according to the physical/logical option. The shell already
+ canonicalizes the directory name in order to tell readline where
+ to look, so not doing it here will be inconsistent. */
+ /* XXX -- currently not used -- will introduce more inconsistency,
+ since shell does not canonicalize ../foo before passing it to
+ shell_execve(). */
+ if (match && searching_path == 0 && *val == '.')
+ {
+ char *t, *t1;
+
+ t = get_working_directory ("command-word-completion");
+ t1 = make_absolute (val, t);
+ free (t);
+ cval = sh_canonpath (t1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS);
+ }
+ else
#endif
+ cval = val;
+
+ if (match && executable_completion ((searching_path ? val : cval), searching_path))
{
+ if (cval != val)
+ free (cval);
free (val);
val = ""; /* So it won't be NULL. */
return (temp);
{
if (freetemp)
free (temp);
+ if (cval != val)
+ free (cval);
free (val);
goto inner;
}
rl_completion_suppress_append = 1;
}
- if (!matches || !matches[cmd_index])
+ if (matches == 0 || matches[cmd_index] == 0)
{
rl_filename_quoting_desired = 0; /* disable quoting */
return ((char *)NULL);
return (ret);
}
+static char *
+maybe_restore_tilde (val, directory_part)
+ char *val, *directory_part;
+{
+ rl_icppfunc_t *save;
+ char *ret;
+
+ save = (dircomplete_expand == 0) ? save_directory_hook () : (rl_icppfunc_t *)0;
+ ret = restore_tilde (val, directory_part);
+ if (save)
+ restore_directory_hook (save);
+ return ret;
+}
+
/* Simulate the expansions that will be performed by
rl_filename_completion_function. This must be called with the address of
a pointer to malloc'd memory. */
d = savestring (*dirname);
- if (rl_directory_rewrite_hook)
- (*rl_directory_rewrite_hook) (&d);
+ if ((rl_directory_rewrite_hook) && (*rl_directory_rewrite_hook) (&d))
+ {
+ free (*dirname);
+ *dirname = d;
+ }
else if (rl_directory_completion_hook && (*rl_directory_completion_hook) (&d))
{
free (*dirname);
rl_directory_rewrite_hook = hookf;
}
+/* Expand a filename before the readline completion code passes it to stat(2).
+ The filename will already have had tilde expansion performed. */
+static int
+bash_filename_stat_hook (dirname)
+ char **dirname;
+{
+ char *local_dirname, *new_dirname, *t;
+ int should_expand_dirname, return_value;
+ WORD_LIST *wl;
+ struct stat sb;
+
+ local_dirname = *dirname;
+ should_expand_dirname = return_value = 0;
+ if (t = mbschr (local_dirname, '$'))
+ should_expand_dirname = '$';
+ else if (t = mbschr (local_dirname, '`')) /* XXX */
+ should_expand_dirname = '`';
+
+#if defined (HAVE_LSTAT)
+ if (should_expand_dirname && lstat (local_dirname, &sb) == 0)
+#else
+ if (should_expand_dirname && stat (local_dirname, &sb) == 0)
+#endif
+ should_expand_dirname = 0;
+
+ if (should_expand_dirname)
+ {
+ new_dirname = savestring (local_dirname);
+ wl = expand_prompt_string (new_dirname, 0, W_NOCOMSUB); /* does the right thing */
+ if (wl)
+ {
+ free (new_dirname);
+ new_dirname = string_list (wl);
+ /* Tell the completer we actually expanded something and change
+ *dirname only if we expanded to something non-null -- stat
+ behaves unpredictably when passed null or empty strings */
+ if (new_dirname && *new_dirname)
+ {
+ free (local_dirname); /* XXX */
+ local_dirname = *dirname = new_dirname;
+ return_value = STREQ (local_dirname, *dirname) == 0;
+ }
+ else
+ free (new_dirname);
+ dispose_words (wl);
+ }
+ else
+ free (new_dirname);
+ }
+
+ /* This is very similar to the code in bash_directory_completion_hook below,
+ but without spelling correction and not worrying about whether or not
+ we change relative pathnames. */
+ if (no_symbolic_links == 0 && (local_dirname[0] != '.' || local_dirname[1]))
+ {
+ char *temp1, *temp2;
+
+ t = get_working_directory ("symlink-hook");
+ temp1 = make_absolute (local_dirname, t);
+ free (t);
+ temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS);
+
+ /* If we can't canonicalize, bail. */
+ if (temp2 == 0)
+ {
+ free (temp1);
+ return return_value;
+ }
+
+ free (local_dirname);
+ *dirname = temp2;
+ free (temp1);
+ }
+
+ return (return_value);
+}
+
/* Handle symbolic link references and other directory name
expansions while hacking completion. This should return 1 if it modifies
the DIRNAME argument, 0 otherwise. It should make sure not to modify
else
nextch = 0;
}
+ else if (local_dirname[0] == '~')
+ should_expand_dirname = '~';
else
{
t = mbschr (local_dirname, '`');
}
custom_filename_quote_characters[j] = '\0';
rl_filename_quote_characters = custom_filename_quote_characters;
+ set_filename_bstab (rl_filename_quote_characters);
}
}
else
free (t);
temp2 = sh_canonpath (temp1, PATH_CHECKDOTDOT|PATH_CHECKEXISTS);
- /* Try spelling correction if initial canonicalization fails. */
- if (temp2 == 0 && dircomplete_spelling)
+ /* Try spelling correction if initial canonicalization fails. Make
+ sure we are set to replace the directory name with the results so
+ subsequent directory checks don't fail. */
+ if (temp2 == 0 && dircomplete_spelling && dircomplete_expand)
{
temp2 = dirspell (temp1);
if (temp2)
return ret;
}
+/* Use characters in STRING to populate the table of characters that should
+ be backslash-quoted. The table will be used for sh_backslash_quote from
+ this file. */
+static void
+set_filename_bstab (string)
+ const char *string;
+{
+ const char *s;
+
+ memset (filename_bstab, 0, sizeof (filename_bstab));
+ for (s = string; s && *s; s++)
+ filename_bstab[*s] = 1;
+}
+
/* Quote a filename using double quotes, single quotes, or backslashes
depending on the value of completion_quoting_style. If we're
completing using backslashes, we need to quote some additional
rtext = sh_single_quote (mtext);
break;
case COMPLETE_BSQUOTE:
- rtext = sh_backslash_quote (mtext);
+ rtext = sh_backslash_quote (mtext, complete_fullquote ? 0 : filename_bstab, 0);
break;
}
/* Leave the opening quote intact. The readline completion code takes
care of avoiding doubled opening quotes. */
- rlen = strlen (rtext);
- ret = (char *)xmalloc (rlen + 1);
- strcpy (ret, rtext);
+ if (rtext)
+ {
+ rlen = strlen (rtext);
+ ret = (char *)xmalloc (rlen + 1);
+ strcpy (ret, rtext);
+ }
+ else
+ {
+ ret = (char *)xmalloc (rlen = 1);
+ ret[0] = '\0';
+ }
/* If there are multiple matches, cut off the closing quote. */
if (rtype == MULT_MATCH && cs != COMPLETE_BSQUOTE)
/* Support for binding readline key sequences to Unix commands. */
static Keymap cmd_xmap;
+#ifdef _MINIX
+static void
+#else
static int
+#endif
putx(c)
int c;
{
int x;
-
x = putc (c, rl_outstream);
- return (x);
+#ifndef _MINIX
+ return x;
+#endif
}
static int
{
Keymap ckmap; /* current keymap */
Keymap xkmap; /* unix command executing keymap */
+ rl_command_func_t *func;
+ int type;
register int i, r;
intmax_t mi;
sh_parser_state_t ps;
char ibuf[INT_STRLEN_BOUND(int) + 1];
/* First, we need to find the right command to execute. This is tricky,
- because we might have already indirected into another keymap. */
- ckmap = rl_get_keymap ();
- if (ckmap != rl_executing_keymap)
- {
- /* bogus. we have to search. only handle one level of indirection. */
- for (i = 0; i < KEYMAP_SIZE; i++)
- {
- if (ckmap[i].type == ISKMAP && (Keymap)ckmap[i].function == rl_executing_keymap)
- break;
- }
- if (i < KEYMAP_SIZE)
- xkmap = (Keymap)cmd_xmap[i].function;
- else
- {
- rl_crlf ();
- internal_error (_("bash_execute_unix_command: cannot find keymap for command"));
- rl_forced_update_display ();
- return 1;
- }
- }
- else
- xkmap = cmd_xmap;
-
- cmd = (char *)xkmap[key].function;
-
- if (cmd == 0)
+ because we might have already indirected into another keymap, so we
+ have to walk cmd_xmap using the entire key sequence. */
+ cmd = (char *)rl_function_of_keyseq (rl_executing_keyseq, cmd_xmap, &type);
+
+ if (cmd == 0 || type != ISMACR)
{
- rl_ding ();
+ rl_crlf ();
+ internal_error (_("bash_execute_unix_command: cannot find keymap for command"));
+ rl_forced_update_display ();
return 1;
}
return 0;
}
+int
+print_unix_command_map ()
+{
+ Keymap save;
+
+ save = rl_get_keymap ();
+ rl_set_keymap (cmd_xmap);
+ rl_macro_dumper (1);
+ rl_set_keymap (save);
+ return 0;
+}
+
static void
init_unix_command_map ()
{
if (line[i] != ':')
{
builtin_error (_("%s: missing colon separator"), line);
+ FREE (kseq);
return -1;
}
i = isolate_sequence (line, i + 1, 0, &kstart);
if (i < 0)
- return -1;
+ {
+ FREE (kseq);
+ return -1;
+ }
/* Create the value string containing the command to execute. */
value = substring (line, kstart, i);
/* and bind the key sequence in the current keymap to a function that
understands how to execute from CMD_XMAP */
rl_bind_keyseq_in_map (kseq, bash_execute_unix_command, kmap);
-
+
+ free (kseq);
return 0;
}
dtxt = bash_dequote_filename ((char *)text, qc);
return (dtxt);
}
+
+/* This event hook is designed to be called after readline receives a signal
+ that interrupts read(2). It gives reasonable responsiveness to interrupts
+ and fatal signals without executing too much code in a signal handler
+ context. */
+static int
+bash_event_hook ()
+{
+ /* If we're going to longjmp to top_level, make sure we clean up readline.
+ check_signals will call QUIT, which will eventually longjmp to top_level,
+ calling run_interrupt_trap along the way. */
+ if (interrupt_state)
+ rl_cleanup_after_signal ();
+ bashline_reset_event_hook ();
+ check_signals_and_traps (); /* XXX */
+ return 0;
+}
+
#endif /* READLINE */
projects / platform / upstream / bash.git / blobdiff