rom/dos/parsepattern.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6     Lang: English
   7 */
   8 #include <proto/exec.h>
   9 #include <dos/dos.h>
  10 #include <dos/dosasl.h>
  11 #include <dos/dosextens.h>
  12 #include "dos_intern.h"
  13
  14 /*****************************************************************************
  15
  16     NAME */
  17 #include <proto/dos.h>
  18
  19         AROS_LH3(LONG, ParsePattern,
  20
  21 /*  SYNOPSIS */
  22         AROS_LHA(STRPTR, Source,     D1),
  23         AROS_LHA(STRPTR, Dest,       D2),
  24         AROS_LHA(LONG,   DestLength, D3),
  25
  26 /*  LOCATION */
  27         struct DosLibrary *, DOSBase, 140, Dos)
  28
  29 /*  FUNCTION
  30         Takes a pattern containing wildcards and transforms it into some
  31         intermediate representation for use with the MatchPattern() function.
  32         The intermediate representation is longer but generally a buffer
  33         size of 2*(strlen(Source)+1) is enough. Nevertheless you should check
  34         the returncode to be sure that everything went fine.
  35
  36     INPUTS
  37         Source     - Pattern describing the kind of strings that match.
  38                      Possible tokens are:
  39                      #x     - The following character or item is repeaded 0 or
  40                               more times.
  41                      ?      - Item matching a single non-NUL character.
  42                      a|b|c  - Matches one of multiple strings.
  43                      ~x     - This item matches if the item x doesn't match.
  44                      (a)    - Parens
  45                      [a-z]  - Matches a single character out of the set.
  46                      [~a-z] - Matches a single non-NUL character not in the set.
  47                      'c     - Escapes the following character.
  48                      *      - Same as #?, but optional.
  49         Dest       - Buffer for the destination.
  50         DestLength - Size of the buffer.
  51
  52     RESULT
  53          1 - There are wildcards in the pattern (it might match more than
  54              one string).
  55          0 - No wildcards in it, all went fine.
  56         -1 - An error happened. IoErr() gives additional information in
  57              that case.
  58
  59     NOTES
  60
  61     EXAMPLE
  62
  63     BUGS
  64
  65     SEE ALSO
  66
  67     INTERNALS
  68
  69 *****************************************************************************/
  70 {
  71     AROS_LIBFUNC_INIT
  72     AROS_LIBBASE_EXT_DECL(struct DosLibrary *,DOSBase)
  73
  74     return patternParse(Source, Dest, DestLength, TRUE, DOSBase);
  75
  76     AROS_LIBFUNC_EXIT
  77 } /* ParsePattern */