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[/] [or1k/] [trunk/] [insight/] [libiberty/] [fnmatch.c] - Blame information for rev 578

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/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
 
NOTE: This source is derived from an old version taken from the GNU C
Library (glibc).
 
This program 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 2, or (at your option) any
later version.
 
This program 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 this program; if not, write to the Free Software
Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */
 
#ifdef HAVE_CONFIG_H
#if defined (CONFIG_BROKETS)
/* We use <config.h> instead of "config.h" so that a compilation
   using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
   (which it would do because it found this file in $srcdir).  */
#include <config.h>
#else
#include "config.h"
#endif
#endif
 
 
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
 
/* This code to undef const added in libiberty.  */
#ifndef __STDC__
/* This is a separate conditional since some stdc systems
   reject `defined (const)'.  */
#ifndef const
#define const
#endif
#endif
 
#include <errno.h>
#include <fnmatch.h>
#include <safe-ctype.h>
 
/* Comment out all this code if we are using the GNU C Library, and are not
   actually compiling the library itself.  This code is part of the GNU C
   Library, but also included in many other GNU distributions.  Compiling
   and linking in this code is a waste when using the GNU C library
   (especially if it is a shared library).  Rather than having every GNU
   program understand `configure --with-gnu-libc' and omit the object files,
   it is simpler to just do this in the source for each such file.  */
 
#if defined (_LIBC) || !defined (__GNU_LIBRARY__)
 
 
#if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)
extern int errno;
#endif
 
/* Match STRING against the filename pattern PATTERN, returning zero if
   it matches, nonzero if not.  */
int
fnmatch (pattern, string, flags)
     const char *pattern;
     const char *string;
     int flags;
{
  register const char *p = pattern, *n = string;
  register unsigned char c;
 
#define FOLD(c) ((flags & FNM_CASEFOLD) ? TOLOWER (c) : (c))
 
  while ((c = *p++) != '\0')
    {
      c = FOLD (c);
 
      switch (c)
        {
        case '?':
          if (*n == '\0')
            return FNM_NOMATCH;
          else if ((flags & FNM_FILE_NAME) && *n == '/')
            return FNM_NOMATCH;
          else if ((flags & FNM_PERIOD) && *n == '.' &&
                   (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
            return FNM_NOMATCH;
          break;
 
        case '\\':
          if (!(flags & FNM_NOESCAPE))
            {
              c = *p++;
              c = FOLD (c);
            }
          if (FOLD ((unsigned char)*n) != c)
            return FNM_NOMATCH;
          break;
 
        case '*':
          if ((flags & FNM_PERIOD) && *n == '.' &&
              (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
            return FNM_NOMATCH;
 
          for (c = *p++; c == '?' || c == '*'; c = *p++, ++n)
            if (((flags & FNM_FILE_NAME) && *n == '/') ||
                (c == '?' && *n == '\0'))
              return FNM_NOMATCH;
 
          if (c == '\0')
            return 0;
 
          {
            unsigned char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
            c1 = FOLD (c1);
            for (--p; *n != '\0'; ++n)
              if ((c == '[' || FOLD ((unsigned char)*n) == c1) &&
                  fnmatch (p, n, flags & ~FNM_PERIOD) == 0)
                return 0;
            return FNM_NOMATCH;
          }
 
        case '[':
          {
            /* Nonzero if the sense of the character class is inverted.  */
            register int not;
 
            if (*n == '\0')
              return FNM_NOMATCH;
 
            if ((flags & FNM_PERIOD) && *n == '.' &&
                (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
              return FNM_NOMATCH;
 
            not = (*p == '!' || *p == '^');
            if (not)
              ++p;
 
            c = *p++;
            for (;;)
              {
                register unsigned char cstart = c, cend = c;
 
                if (!(flags & FNM_NOESCAPE) && c == '\\')
                  cstart = cend = *p++;
 
                cstart = cend = FOLD (cstart);
 
                if (c == '\0')
                  /* [ (unterminated) loses.  */
                  return FNM_NOMATCH;
 
                c = *p++;
                c = FOLD (c);
 
                if ((flags & FNM_FILE_NAME) && c == '/')
                  /* [/] can never match.  */
                  return FNM_NOMATCH;
 
                if (c == '-' && *p != ']')
                  {
                    cend = *p++;
                    if (!(flags & FNM_NOESCAPE) && cend == '\\')
                      cend = *p++;
                    if (cend == '\0')
                      return FNM_NOMATCH;
                    cend = FOLD (cend);
 
                    c = *p++;
                  }
 
                if (FOLD ((unsigned char)*n) >= cstart
                    && FOLD ((unsigned char)*n) <= cend)
                  goto matched;
 
                if (c == ']')
                  break;
              }
            if (!not)
              return FNM_NOMATCH;
            break;
 
          matched:;
            /* Skip the rest of the [...] that already matched.  */
            while (c != ']')
              {
                if (c == '\0')
                  /* [... (unterminated) loses.  */
                  return FNM_NOMATCH;
 
                c = *p++;
                if (!(flags & FNM_NOESCAPE) && c == '\\')
                  /* XXX 1003.2d11 is unclear if this is right.  */
                  ++p;
              }
            if (not)
              return FNM_NOMATCH;
          }
          break;
 
        default:
          if (c != FOLD ((unsigned char)*n))
            return FNM_NOMATCH;
        }
 
      ++n;
    }
 
  if (*n == '\0')
    return 0;
 
  if ((flags & FNM_LEADING_DIR) && *n == '/')
    /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz".  */
    return 0;
 
  return FNM_NOMATCH;
}
 
#endif  /* _LIBC or not __GNU_LIBRARY__.  */

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[/] [or1k/] [trunk/] [insight/] [libiberty/] [fnmatch.c] - Blame information for rev 578

Line No.	Rev	Author	Line
1	578	markom	`/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.`
2
3			`NOTE: This source is derived from an old version taken from the GNU C`
4			`Library (glibc).`
5
6			`This program is free software; you can redistribute it and/or modify it`
7			`under the terms of the GNU General Public License as published by the`
8			`Free Software Foundation; either version 2, or (at your option) any`
9			`later version.`
10
11			`This program is distributed in the hope that it will be useful,`
12			`but WITHOUT ANY WARRANTY; without even the implied warranty of`
13			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
14			`GNU General Public License for more details.`
15
16			`You should have received a copy of the GNU General Public License`
17			`along with this program; if not, write to the Free Software`
18			`Foundation, 59 Temple Place - Suite 330,`
19			`Boston, MA 02111-1307, USA. */`
20
21			`#ifdef HAVE_CONFIG_H`
22			`#if defined (CONFIG_BROKETS)`
23			`/* We use <config.h> instead of "config.h" so that a compilation`
24			`using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h`
25			`(which it would do because it found this file in $srcdir). */`
26			`#include <config.h>`
27			`#else`
28			`#include "config.h"`
29			`#endif`
30			`#endif`
31
32
33			`#ifndef _GNU_SOURCE`
34			`#define _GNU_SOURCE`
35			`#endif`
36
37			`/* This code to undef const added in libiberty. */`
38			`#ifndef __STDC__`
39			`/* This is a separate conditional since some stdc systems`
40			reject `defined (const)'. */
41			`#ifndef const`
42			`#define const`
43			`#endif`
44			`#endif`
45
46			`#include <errno.h>`
47			`#include <fnmatch.h>`
48			`#include <safe-ctype.h>`
49
50			`/* Comment out all this code if we are using the GNU C Library, and are not`
51			`actually compiling the library itself. This code is part of the GNU C`
52			`Library, but also included in many other GNU distributions. Compiling`
53			`and linking in this code is a waste when using the GNU C library`
54			`(especially if it is a shared library). Rather than having every GNU`
55			program understand `configure --with-gnu-libc' and omit the object files,
56			`it is simpler to just do this in the source for each such file. */`
57
58			`#if defined (_LIBC) \|\| !defined (__GNU_LIBRARY__)`
59
60
61			`#if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)`
62			`extern int errno;`
63			`#endif`
64
65			`/* Match STRING against the filename pattern PATTERN, returning zero if`
66			`it matches, nonzero if not. */`
67			`int`
68			`fnmatch (pattern, string, flags)`
69			`const char *pattern;`
70			`const char *string;`
71			`int flags;`
72			`{`
73			`register const char p = pattern, n = string;`
74			`register unsigned char c;`
75
76			`#define FOLD(c) ((flags & FNM_CASEFOLD) ? TOLOWER (c) : (c))`
77
78			`while ((c = *p++) != '\0')`
79			`{`
80			`c = FOLD (c);`
81
82			`switch (c)`
83			`{`
84			`case '?':`
85			`if (*n == '\0')`
86			`return FNM_NOMATCH;`
87			`else if ((flags & FNM_FILE_NAME) && *n == '/')`
88			`return FNM_NOMATCH;`
89			`else if ((flags & FNM_PERIOD) && *n == '.' &&`
90			`(n == string \|\| ((flags & FNM_FILE_NAME) && n[-1] == '/')))`
91			`return FNM_NOMATCH;`
92			`break;`
93
94			`case '\\':`
95			`if (!(flags & FNM_NOESCAPE))`
96			`{`
97			`c = *p++;`
98			`c = FOLD (c);`
99			`}`
100			`if (FOLD ((unsigned char)*n) != c)`
101			`return FNM_NOMATCH;`
102			`break;`
103
104			`case '*':`
105			`if ((flags & FNM_PERIOD) && *n == '.' &&`
106			`(n == string \|\| ((flags & FNM_FILE_NAME) && n[-1] == '/')))`
107			`return FNM_NOMATCH;`
108
109			`for (c = p++; c == '?' \|\| c == ''; c = *p++, ++n)`
110			`if (((flags & FNM_FILE_NAME) && *n == '/') \|\|`
111			`(c == '?' && *n == '\0'))`
112			`return FNM_NOMATCH;`
113
114			`if (c == '\0')`
115			`return 0;`
116
117			`{`
118			`unsigned char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;`
119			`c1 = FOLD (c1);`
120			`for (--p; *n != '\0'; ++n)`
121			`if ((c == '[' \|\| FOLD ((unsigned char)*n) == c1) &&`
122			`fnmatch (p, n, flags & ~FNM_PERIOD) == 0)`
123			`return 0;`
124			`return FNM_NOMATCH;`
125			`}`
126
127			`case '[':`
128			`{`
129			`/* Nonzero if the sense of the character class is inverted. */`
130			`register int not;`
131
132			`if (*n == '\0')`
133			`return FNM_NOMATCH;`
134
135			`if ((flags & FNM_PERIOD) && *n == '.' &&`
136			`(n == string \|\| ((flags & FNM_FILE_NAME) && n[-1] == '/')))`
137			`return FNM_NOMATCH;`
138
139			`not = (p == '!' \|\| p == '^');`
140			`if (not)`
141			`++p;`
142
143			`c = *p++;`
144			`for (;;)`
145			`{`
146			`register unsigned char cstart = c, cend = c;`
147
148			`if (!(flags & FNM_NOESCAPE) && c == '\\')`
149			`cstart = cend = *p++;`
150
151			`cstart = cend = FOLD (cstart);`
152
153			`if (c == '\0')`
154			`/* [ (unterminated) loses. */`
155			`return FNM_NOMATCH;`
156
157			`c = *p++;`
158			`c = FOLD (c);`
159
160			`if ((flags & FNM_FILE_NAME) && c == '/')`
161			`/* [/] can never match. */`
162			`return FNM_NOMATCH;`
163
164			`if (c == '-' && *p != ']')`
165			`{`
166			`cend = *p++;`
167			`if (!(flags & FNM_NOESCAPE) && cend == '\\')`
168			`cend = *p++;`
169			`if (cend == '\0')`
170			`return FNM_NOMATCH;`
171			`cend = FOLD (cend);`
172
173			`c = *p++;`
174			`}`
175
176			`if (FOLD ((unsigned char)*n) >= cstart`
177			`&& FOLD ((unsigned char)*n) <= cend)`
178			`goto matched;`
179
180			`if (c == ']')`
181			`break;`
182			`}`
183			`if (!not)`
184			`return FNM_NOMATCH;`
185			`break;`
186
187			`matched:;`
188			`/* Skip the rest of the [...] that already matched. */`
189			`while (c != ']')`
190			`{`
191			`if (c == '\0')`
192			`/* [... (unterminated) loses. */`
193			`return FNM_NOMATCH;`
194
195			`c = *p++;`
196			`if (!(flags & FNM_NOESCAPE) && c == '\\')`
197			`/* XXX 1003.2d11 is unclear if this is right. */`
198			`++p;`
199			`}`
200			`if (not)`
201			`return FNM_NOMATCH;`
202			`}`
203			`break;`
204
205			`default:`
206			`if (c != FOLD ((unsigned char)*n))`
207			`return FNM_NOMATCH;`
208			`}`
209
210			`++n;`
211			`}`
212
213			`if (*n == '\0')`
214			`return 0;`
215
216			`if ((flags & FNM_LEADING_DIR) && *n == '/')`
217			`/* The FNM_LEADING_DIR flag says that "foo" matches "foobar/frobozz". /`
218			`return 0;`
219
220			`return FNM_NOMATCH;`
221			`}`
222
223			`#endif /* _LIBC or not __GNU_LIBRARY__. */`