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/* bracecomp.c -- Complete a filename with the possible completions enclosed
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in csh-style braces such that the list of completions is available to the
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/* Original version by tromey@cns.caltech.edu, Fri Feb 7 1992. */
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/* Copyright (C) 1993 Free Software Foundation, Inc.
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This file is part of GNU Bash, the Bourne Again SHell.
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Bash is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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Bash is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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You should have received a copy of the GNU General Public License along
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with Bash; see the file COPYING. If not, write to the Free Software
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Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
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#if defined (BRACE_EXPANSION) && defined (READLINE)
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#if defined (HAVE_UNISTD_H)
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# include <sys/types.h>
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#include <readline/readline.h>
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/* Find greatest common prefix of two strings. */
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if (s1 == NULL || s2 == NULL)
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for (i = 0; *s1 && *s2; ++s1, ++s2, ++i)
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really_munge_braces (array, real_start, real_end, gcd_zero)
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int real_start, real_end, gcd_zero;
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char *result, *subterm, *x;
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int result_size, flag, tlen;
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if (real_start == real_end)
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x = array[real_start] ? sh_backslash_quote (array[real_start] + gcd_zero)
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: sh_backslash_quote (array[0]);
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result = (char *)xmalloc (result_size = 16);
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for (start = real_start; start < real_end; start = end + 1)
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gcd = strlen (array[start]);
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for (end = start + 1; end < real_end; end++)
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temp = string_gcd (array[start], array[end]);
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if (gcd_zero == 0 && start == real_start && end != (real_end - 1))
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/* In this case, add in a leading '{', because we are at
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top level, and there isn't a consistent prefix. */
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result = (char *)xrealloc (result, result_size);
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result[0] = '{'; result[1] = '\0';
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/* Make sure we backslash quote every substring we insert into the
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resultant brace expression. This is so the default filename
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quoting function won't inappropriately quote the braces. */
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x = savestring (array[start] + gcd_zero);
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subterm = sh_backslash_quote (x);
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/* If there is more than one element in the subarray,
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insert the (quoted) prefix and an opening brace. */
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tlen = gcd - gcd_zero;
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x = (char *)xmalloc (tlen + 1);
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strncpy (x, array[start] + gcd_zero, tlen);
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subterm = sh_backslash_quote (x);
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result_size += strlen (subterm) + 1;
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result = (char *)xrealloc (result, result_size);
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strcat (result, subterm);
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strcat (result, "{");
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subterm = really_munge_braces (array, start, end + 1, gcd);
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subterm[strlen (subterm) - 1] = '}';
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result_size += strlen (subterm) + 1;
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result = (char *)xrealloc (result, result_size);
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strcat (result, subterm);
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strcat (result, ",");
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result[strlen (result) - 1] = flag ? '}' : '\0';
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hack_braces_completion (names)
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temp = really_munge_braces (names, 1, array_len (names), 0);
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for (i = 0; names[i]; ++i)
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/* We handle quoting ourselves within hack_braces_completion, so we turn off
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rl_filename_quoting_desired and rl_filename_quoting_function. */
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bash_brace_completion (count, ignore)
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rl_compignore_func_t *orig_ignore_func;
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rl_compentry_func_t *orig_entry_func;
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rl_quote_func_t *orig_quoting_func;
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rl_completion_func_t *orig_attempt_func;
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int orig_quoting_desired, r;
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orig_ignore_func = rl_ignore_some_completions_function;
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orig_attempt_func = rl_attempted_completion_function;
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orig_entry_func = rl_completion_entry_function;
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orig_quoting_func = rl_filename_quoting_function;
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orig_quoting_desired = rl_filename_quoting_desired;
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rl_completion_entry_function = rl_filename_completion_function;
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rl_attempted_completion_function = (rl_completion_func_t *)NULL;
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rl_ignore_some_completions_function = hack_braces_completion;
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rl_filename_quoting_function = (rl_quote_func_t *)NULL;
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rl_filename_quoting_desired = 0;
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r = rl_complete_internal (TAB);
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rl_ignore_some_completions_function = orig_ignore_func;
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rl_attempted_completion_function = orig_attempt_func;
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rl_completion_entry_function = orig_entry_func;
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rl_filename_quoting_function = orig_quoting_func;
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rl_filename_quoting_desired = orig_quoting_desired;
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#endif /* BRACE_EXPANSION && READLINE */