(file) Return to String.cpp CVS log (file) (dir) Up to [Pegasus] / pegasus / src / Pegasus / Common

Diff for /pegasus/src/Pegasus/Common/String.cpp between version 1.28.2.2 and 1.28.2.3

version 1.28.2.2, 2001/08/18 00:01:55 version 1.28.2.3, 2001/08/18 01:28:28
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     return tmp;     return tmp;
 } }
  
   ////////////////////////////////////////////////////////////////////////////////
   //
   // String matching routines borrowed from Tcl 8.0:
   //
   ////////////////////////////////////////////////////////////////////////////////
   
   ////////////////////////////////////////////////////////////////////////////////
   //
   // This software is copyrighted by the Regents of the University of
   // California, Sun Microsystems, Inc., and other parties.  The following
   // terms apply to all files associated with the software unless explicitly
   // disclaimed in individual files.
   //
   // The authors hereby grant permission to use, copy, modify, distribute,
   // and license this software and its documentation for any purpose, provided
   // that existing copyright notices are retained in all copies and that this
   // notice is included verbatim in any distributions. No written agreement,
   // license, or royalty fee is required for any of the authorized uses.
   // Modifications to this software may be copyrighted by their authors
   // and need not follow the licensing terms described here, provided that
   // the new terms are clearly indicated on the first page of each file where
   // they apply.
   //
   // IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
   // FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
   // ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
   // DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
   // POSSIBILITY OF SUCH DAMAGE.
   //
   // THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
   // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
   // FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE
   // IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
   // NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
   // MODIFICATIONS.
   //
   // GOVERNMENT USE: If you are acquiring this software on behalf of the
   // U.S. government, the Government shall have only "Restricted Rights"
   // in the software and related documentation as defined in the Federal
   // Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2).  If you
   // are acquiring the software on behalf of the Department of Defense, the
   // software shall be classified as "Commercial Computer Software" and the
   // Government shall have only "Restricted Rights" as defined in Clause
   // 252.227-7013 (c) (1) of DFARs.  Notwithstanding the foregoing, the
   // authors grant the U.S. Government and others acting in its behalf
   // permission to use and distribute the software in accordance with the
   // terms specified in this license.
   //
   ////////////////////////////////////////////////////////////////////////////////
   
   
   /*
    *----------------------------------------------------------------------
    *
    * Tcl_StringMatch --
    *
    *      See if a particular string matches a particular pattern.
    *
    * Results:
    *      The return value is 1 if string matches pattern, and
    *      0 otherwise.  The matching operation permits the following
    *      special characters in the pattern: *?\[] (see the manual
    *      entry for details on what these mean).
    *
    * Side effects:
    *      None.
    *
    *----------------------------------------------------------------------
    */
   
   typedef Uint16 Tcl_Char;
   
   inline Uint16 _ToLower(Uint16 ch)
   {
       return ch <= 127 ? tolower(char(ch)) : ch;
   }
   
   inline Boolean _Equal(Uint16 ch1, Uint16 ch2, int nocase)
   {
       if (nocase)
           return _ToLower(ch1) == _ToLower(ch2);
       else
           return ch1 == ch2;
   }
   
   int Tcl_StringMatch(
       Tcl_Char *string,           /* String. */
       Tcl_Char *pattern,          /* Pattern, which may contain special
                                    * characters. */
       int nocase)                 /* Ignore case if this is true */
   {
       Tcl_Char c2;
   
       while (1) {
           /* See if we're at the end of both the pattern and the string.
            * If so, we succeeded.  If we're at the end of the pattern
            * but not at the end of the string, we failed.
            */
   
           if (*pattern == 0) {
               if (*string == 0) {
                   return 1;
               } else {
                   return 0;
               }
           }
           if ((*string == 0) && (*pattern != '*')) {
               return 0;
           }
   
           /* Check for a "*" as the next pattern character.  It matches
            * any substring.  We handle this by calling ourselves
            * recursively for each postfix of string, until either we
            * match or we reach the end of the string.
            */
   
           if (*pattern == '*') {
               pattern += 1;
               if (*pattern == 0) {
                   return 1;
               }
               while (1) {
                   if (Tcl_StringMatch(string, pattern, nocase)) {
                       return 1;
                   }
                   if (*string == 0) {
                       return 0;
                   }
                   string += 1;
               }
           }
   
           /* Check for a "?" as the next pattern character.  It matches
            * any single character.
            */
   
           if (*pattern == '?') {
               goto thisCharOK;
           }
   
           /* Check for a "[" as the next pattern character.  It is followed
            * by a list of characters that are acceptable, or by a range
            * (two characters separated by "-").
            */
   
           if (*pattern == '[') {
               pattern += 1;
               while (1) {
                   if ((*pattern == ']') || (*pattern == 0)) {
                       return 0;
                   }
                   if (_Equal(*pattern, *string, nocase)) {
                       break;
                   }
                   if (pattern[1] == '-') {
                       c2 = pattern[2];
                       if (c2 == 0) {
                           return 0;
                       }
                       if ((*pattern <= *string) && (c2 >= *string)) {
                           break;
                       }
                       if ((*pattern >= *string) && (c2 <= *string)) {
                           break;
                       }
                       pattern += 2;
                   }
                   pattern += 1;
               }
               while (*pattern != ']') {
                   if (*pattern == 0) {
                       pattern--;
                       break;
                   }
                   pattern += 1;
               }
               goto thisCharOK;
           }
   
           /* If the next pattern character is '/', just strip off the '/'
            * so we do exact matching on the character that follows.
            */
   
           if (*pattern == '\\') {
               pattern += 1;
               if (*pattern == 0) {
                   return 0;
               }
           }
   
           /* There's no special character.  Just make sure that the next
            * characters of each string match.
            */
   
           if (!_Equal(*pattern, *string, nocase)) {
               return 0;
           }
   
           thisCharOK: pattern += 1;
           string += 1;
       }
   }
   
   Boolean String::match(const String& str, const String& pattern)
   {
       return Tcl_StringMatch(
           (Uint16*)str.getData(), (Uint16*)pattern.getData(), 0) != 0;
   }
   
   Boolean String::matchNoCase(const String& str, const String& pattern)
   {
       return Tcl_StringMatch(
           (Uint16*)str.getData(), (Uint16*)pattern.getData(), 1) != 0;
   }
  
 PEGASUS_NAMESPACE_END PEGASUS_NAMESPACE_END

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