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- ;/* Pattern.c. AmigaMail pattern matching example. Compiled with SAS/C 5.10a:
- lc -cfis -v -d0 -b0 -j73 Pattern.c
- blink from Pattern.o to Pattern lib lib:amiga.lib
- quit
- */
- /* (c) Copyright 1991 Commodore-Amiga, Inc. All rights reserved.
- The information contained herein is subject to change without notice,
- and is provided "as is" without warranty of any kind, either expressed
- or implied. The entire risk as to the use of this information is
- assumed by the user.
- */
-
- #include <exec/types.h>
- #include <exec/memory.h>
- #include <dos/dos.h>
- #include <dos/dosasl.h>
- #include <dos/rdargs.h>
-
- #include <clib/exec_protos.h>
- #include <clib/dos_protos.h>
- #include <clib/utility_protos.h>
-
- /* define pragmas if you have them
- #define PRAGMAS */
- #ifdef PRAGMAS
- #include <pragmas/exec_pragmas.h>
- #include <pragmas/dos_pragmas.h>
- #include <pragmas/utility_pragmas.h>
- #else
- struct ExecBase *SysBase;
- struct DosLibrary *DOSBase;
- struct Library *UtilityBase;
- #endif
-
- VOID main(VOID);
- UWORD StrLen(UBYTE *);
-
- VOID main(VOID)
- {
- #ifdef PRAGMAS
- struct DosLibrary *DOSBase;
- struct Library *UtilityBase;
-
- #endif
-
- struct RDArgs *readargs;
- LONG rargs[3];
- LONG vargs[4];
- UBYTE **strings;
- UBYTE *pattern, *parsebuffer;
- UWORD case_sensitive, buffersize;
- LONG iswild, success;
- COUNT i;
-
- #ifndef PRAGMAS
- /* set up SysBase */
- SysBase = (*((struct Library **) 4));
- #endif
-
- /* Fail silently if < 37 */
- if (DOSBase = (struct DosLibrary *) OpenLibrary("dos.library", 37))
- {
- UtilityBase = DOSBase->dl_UtilityBase;
-
- /* See the DOS Autodocs for more information about ReadArgs() */
- if (readargs = ReadArgs("PATTERN/A,CASE/S,STRINGS/A/M", rargs, NULL))
- {
-
- /* The pattern. */
- pattern = (UBYTE *) (rargs[0]);
-
- /*
- * Case sensitive or not? (default not. Note filename matching
- * should ALWAYS be case insensitive).
- */
- case_sensitive = (UWORD) (rargs[1]);
-
- /* Pointer to array of strings to match */
- strings = (UBYTE **) (rargs[2]);
-
- /* Get a buffer big enough to hold all the tokens */
- buffersize = StrLen(pattern) * 3;
-
- if (parsebuffer = AllocMem(buffersize, MEMF_CLEAR))
- {
-
- /* Parse the pattern, according to case sensitivity flag */
- if (case_sensitive)
- iswild = ParsePattern(pattern, parsebuffer, buffersize);
- else
- {
- /* make pattern uppercase in case of character classes */
- i = 0;
- while (pattern[i])
- pattern[i] = ToUpper(pattern[i++]);
- iswild = ParsePatternNoCase(pattern, parsebuffer, buffersize);
- }
-
- /*
- * -1 if ParsePattern() failed, 0 for no wildcards, 1 for
- * wildcards. For this I don't care if the supplied pattern had
- * wildcards or not.
- */
- if (iswild != -1)
- {
- /* The array of strings is terminated with a NULL */
- while (*strings)
- {
-
- /*
- * MatchPattern() returns 1 for a successful match, 0
- * for no match
- */
- if (case_sensitive)
- success = MatchPattern(parsebuffer, *strings);
- else
- success = MatchPatternNoCase(parsebuffer, *strings);
- if (success)
- {
- vargs[0] = (LONG) * strings;
- VFPrintf(Output(), "Match: %s\n", vargs);
- }
- else
- {
- if (IoErr() != 0)
- {
- VFPrintf(Output(), "Overflow\n", NULL);
- break;
- }
- }
- strings++;
- }
- }
- else
- PrintFault(ERROR_BAD_TEMPLATE, pattern);
- FreeMem(parsebuffer, buffersize);
- }
- else
- PrintFault(ERROR_NO_FREE_STORE, NULL);
- FreeArgs(readargs);
- }
- else
- PrintFault(IoErr(), NULL);
- CloseLibrary((struct Library *) DOSBase);
- }
- }
-
- UWORD StrLen(UBYTE * string)
- {
- UBYTE *length = string + 1;
-
- while (*string++ != '\0');
- return ((UWORD) (string - length));
- }
-