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- /* File-name wildcard pattern matching for GNU.
- Copyright (C) 1985, 1988 Free Software Foundation, Inc.
-
- NO WARRANTY
-
- BECAUSE THIS PROGRAM IS LICENSED FREE OF CHARGE, WE PROVIDE ABSOLUTELY
- NO WARRANTY, TO THE EXTENT PERMITTED BY APPLICABLE STATE LAW. EXCEPT
- WHEN OTHERWISE STATED IN WRITING, FREE SOFTWARE FOUNDATION, INC,
- RICHARD M. STALLMAN AND/OR OTHER PARTIES PROVIDE THIS PROGRAM "AS IS"
- WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
- BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY
- AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
- DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
- CORRECTION.
-
- IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL RICHARD M.
- STALLMAN, THE FREE SOFTWARE FOUNDATION, INC., AND/OR ANY OTHER PARTY
- WHO MAY MODIFY AND REDISTRIBUTE THIS PROGRAM AS PERMITTED BELOW, BE
- LIABLE TO YOU FOR DAMAGES, INCLUDING ANY LOST PROFITS, LOST MONIES, OR
- OTHER SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
- USE OR INABILITY TO USE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR
- DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY THIRD PARTIES OR
- A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS) THIS
- PROGRAM, EVEN IF YOU HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
- DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY.
-
- GENERAL PUBLIC LICENSE TO COPY
-
- 1. You may copy and distribute verbatim copies of this source file
- as you receive it, in any medium, provided that you conspicuously and
- appropriately publish on each copy a valid copyright notice "Copyright
- (C) 1988 Free Software Foundation, Inc."; and include following the
- copyright notice a verbatim copy of the above disclaimer of warranty
- and of this License.
-
- 2. You may modify your copy or copies of this source file or
- any portion of it, and copy and distribute such modifications under
- the terms of Paragraph 1 above, provided that you also do the following:
-
- a) cause the modified files to carry prominent notices stating
- that you changed the files and the date of any change; and
-
- b) cause the whole of any work that you distribute or publish,
- that in whole or in part contains or is a derivative of this
- program or any part thereof, to be licensed at no charge to all
- third parties on terms identical to those contained in this
- License Agreement (except that you may choose to grant more extensive
- warranty protection to some or all third parties, at your option).
-
- c) You may charge a distribution fee for the physical act of
- transferring a copy, and you may at your option offer warranty
- protection in exchange for a fee.
-
- Mere aggregation of another unrelated program with this program (or its
- derivative) on a volume of a storage or distribution medium does not bring
- the other program under the scope of these terms.
-
- 3. You may copy and distribute this program (or a portion or derivative
- of it, under Paragraph 2) in object code or executable form under the terms
- of Paragraphs 1 and 2 above provided that you also do one of the following:
-
- a) accompany it with the complete corresponding machine-readable
- source code, which must be distributed under the terms of
- Paragraphs 1 and 2 above; or,
-
- b) accompany it with a written offer, valid for at least three
- years, to give any third party free (except for a nominal
- shipping charge) a complete machine-readable copy of the
- corresponding source code, to be distributed under the terms of
- Paragraphs 1 and 2 above; or,
-
- c) accompany it with the information you received as to where the
- corresponding source code may be obtained. (This alternative is
- allowed only for noncommercial distribution and only if you
- received the program in object code or executable form alone.)
-
- For an executable file, complete source code means all the source code for
- all modules it contains; but, as a special exception, it need not include
- source code for modules which are standard libraries that accompany the
- operating system on which the executable file runs.
-
- 4. You may not copy, sublicense, distribute or transfer this program
- except as expressly provided under this License Agreement. Any attempt
- otherwise to copy, sublicense, distribute or transfer this program is void and
- your rights to use the program under this License agreement shall be
- automatically terminated. However, parties who have received computer
- software programs from you with this License Agreement will not have
- their licenses terminated so long as such parties remain in full compliance.
-
-
- In other words, you are welcome to use, share and improve this program.
- You are forbidden to forbid anyone else to use, share and improve
- what you give them. Help stamp out software-hoarding! */
-
- /* Match the pattern PATTERN against the string TEXT;
- return 1 if it matches, 0 otherwise.
-
- A match means the entire string TEXT is used up in matching.
-
- In the pattern string, `*' matches any sequence of characters,
- `?' matches any character, [SET] matches any character in the specified set,
- [^SET] matches any character not in the specified set.
-
- A set is composed of characters or ranges; a range looks like
- character hyphen character (as in 0-9 or A-Z).
- [0-9a-zA-Z_] is the set of characters allowed in C identifiers.
- Any other character in the pattern must be matched exactly.
-
- To suppress the special syntactic significance of any of `[]*?^-\',
- and match the character exactly, precede it with a `\'.
-
- If DOT_SPECIAL is nonzero,
- `*' and `?' do not match `.' at the beginning of TEXT. */
-
- static int star_glob_match(char *pattern, char *text);
-
- int glob_match(char *pattern, char *text, int dot_special)
- {
- register char *p = pattern, *t = text;
- register char c;
-
- while ((c = *p++))
- {
- switch (c)
- {
- case '?':
- if (*t == 0 || (dot_special && t == text && *t == '.')) return 0;
- else ++t;
- break;
-
- case '\\':
- if (*p++ != *t++) return 0;
- break;
-
- case '*':
- if (dot_special && t == text && *t == '.')
- return 0;
- return star_glob_match (p, t);
-
- case '[':
- {
- register char c1 = *t++;
- register int invert = (*p == '^');
-
- if (invert) p++;
-
- c = *p++;
- while (1)
- {
- register char cstart = c, cend = c;
-
- if (c == '\\')
- {
- cstart = *p++; cend = cstart;
- }
- c = *p++;
- if (c == '-')
- { cend = *p++; if (cend == '\\') cend = *p++; c = *p++; }
- if (c1 >= cstart && c1 <= cend) goto match;
- if (c == ']')
- break;
- }
- if (!invert) return 0;
- break;
-
- match:
- /* Skip the rest of the [...] construct that already matched. */
- while (c != ']')
- {
- c = *p++;
- if (c == '\\') p++;
- }
- if (invert) return 0;
- break;
- }
-
- default:
- if (c != *t++) return 0;
- }
- }
-
- if (*t) return 0;
- return 1;
- }
-
- /* Like glob_match, but match PATTERN against any final segment of TEXT. */
-
- static int star_glob_match(char *pattern, char *text)
- {
- register char *p = pattern, *t = text;
- register char c, c1;
-
- while ((c = *p++) == '?' || c == '*')
- {
- if (c == '?' && *t++ == 0)
- return 0;
- }
-
- if (c == 0)
- return 1;
-
- if (c == '\\') c1 = *p;
- else c1 = c;
-
- for (;;)
- {
- if ((c == '[' || *t == c1)
- && glob_match (p - 1, t, 0))
- return 1;
- if (*t++ == 0) return 0;
- }
- }
-