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[/] [or1k/] [tags/] [start/] [insight/] [libiberty/] [fnmatch.c] - Blame information for rev 1780

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1 578 markom 
/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
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NOTE: This source is derived from an old version taken from the GNU C
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Library (glibc).
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any
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later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.  */
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#ifdef HAVE_CONFIG_H
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#if defined (CONFIG_BROKETS)
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/* We use <config.h> instead of "config.h" so that a compilation
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   using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
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   (which it would do because it found this file in $srcdir).  */
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#include <config.h>
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#else
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#include "config.h"
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#endif
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#endif
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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/* This code to undef const added in libiberty.  */
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#ifndef __STDC__
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/* This is a separate conditional since some stdc systems
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   reject `defined (const)'.  */
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#ifndef const
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#define const
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#endif
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#endif
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#include <errno.h>
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#include <fnmatch.h>
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#include <safe-ctype.h>
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/* Comment out all this code if we are using the GNU C Library, and are not
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   actually compiling the library itself.  This code is part of the GNU C
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   Library, but also included in many other GNU distributions.  Compiling
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   and linking in this code is a waste when using the GNU C library
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   (especially if it is a shared library).  Rather than having every GNU
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   program understand `configure --with-gnu-libc' and omit the object files,
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   it is simpler to just do this in the source for each such file.  */
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#if defined (_LIBC) || !defined (__GNU_LIBRARY__)
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#if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)
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extern int errno;
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#endif
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/* Match STRING against the filename pattern PATTERN, returning zero if
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   it matches, nonzero if not.  */
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int
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fnmatch (pattern, string, flags)
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     const char *pattern;
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     const char *string;
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     int flags;
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{
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  register const char *p = pattern, *n = string;
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  register unsigned char c;
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#define FOLD(c) ((flags & FNM_CASEFOLD) ? TOLOWER (c) : (c))
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  while ((c = *p++) != '\0')
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    {
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      c = FOLD (c);
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      switch (c)
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        {
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        case '?':
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          if (*n == '\0')
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            return FNM_NOMATCH;
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          else if ((flags & FNM_FILE_NAME) && *n == '/')
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            return FNM_NOMATCH;
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          else if ((flags & FNM_PERIOD) && *n == '.' &&
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                   (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
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            return FNM_NOMATCH;
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          break;
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        case '\\':
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          if (!(flags & FNM_NOESCAPE))
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            {
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              c = *p++;
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              c = FOLD (c);
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            }
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          if (FOLD ((unsigned char)*n) != c)
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            return FNM_NOMATCH;
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          break;
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        case '*':
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          if ((flags & FNM_PERIOD) && *n == '.' &&
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              (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
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            return FNM_NOMATCH;
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          for (c = *p++; c == '?' || c == '*'; c = *p++, ++n)
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            if (((flags & FNM_FILE_NAME) && *n == '/') ||
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                (c == '?' && *n == '\0'))
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              return FNM_NOMATCH;
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          if (c == '\0')
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            return 0;
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          {
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            unsigned char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
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            c1 = FOLD (c1);
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            for (--p; *n != '\0'; ++n)
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              if ((c == '[' || FOLD ((unsigned char)*n) == c1) &&
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                  fnmatch (p, n, flags & ~FNM_PERIOD) == 0)
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                return 0;
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            return FNM_NOMATCH;
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          }
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        case '[':
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          {
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            /* Nonzero if the sense of the character class is inverted.  */
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            register int not;
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            if (*n == '\0')
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              return FNM_NOMATCH;
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            if ((flags & FNM_PERIOD) && *n == '.' &&
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                (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/')))
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              return FNM_NOMATCH;
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            not = (*p == '!' || *p == '^');
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            if (not)
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              ++p;
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            c = *p++;
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            for (;;)
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              {
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                register unsigned char cstart = c, cend = c;
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                if (!(flags & FNM_NOESCAPE) && c == '\\')
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                  cstart = cend = *p++;
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                cstart = cend = FOLD (cstart);
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                if (c == '\0')
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                  /* [ (unterminated) loses.  */
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                  return FNM_NOMATCH;
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                c = *p++;
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                c = FOLD (c);
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                if ((flags & FNM_FILE_NAME) && c == '/')
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                  /* [/] can never match.  */
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                  return FNM_NOMATCH;
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                if (c == '-' && *p != ']')
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                  {
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                    cend = *p++;
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                    if (!(flags & FNM_NOESCAPE) && cend == '\\')
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                      cend = *p++;
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                    if (cend == '\0')
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                      return FNM_NOMATCH;
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                    cend = FOLD (cend);
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                    c = *p++;
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                  }
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                if (FOLD ((unsigned char)*n) >= cstart
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                    && FOLD ((unsigned char)*n) <= cend)
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                  goto matched;
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180 
                if (c == ']')
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                  break;
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              }
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            if (!not)
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              return FNM_NOMATCH;
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            break;
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187 
          matched:;
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            /* Skip the rest of the [...] that already matched.  */
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            while (c != ']')
190 
              {
191 
                if (c == '\0')
192 
                  /* [... (unterminated) loses.  */
193 
                  return FNM_NOMATCH;
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195 
                c = *p++;
196 
                if (!(flags & FNM_NOESCAPE) && c == '\\')
197 
                  /* XXX 1003.2d11 is unclear if this is right.  */
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                  ++p;
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              }
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            if (not)
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              return FNM_NOMATCH;
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          }
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          break;
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        default:
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          if (c != FOLD ((unsigned char)*n))
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            return FNM_NOMATCH;
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        }
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210 
      ++n;
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    }
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  if (*n == '\0')
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    return 0;
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  if ((flags & FNM_LEADING_DIR) && *n == '/')
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    /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz".  */
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    return 0;
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  return FNM_NOMATCH;
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}
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223 
#endif  /* _LIBC or not __GNU_LIBRARY__.  */

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