ext/scintilla/lexlib/CharacterSet.cxx

   1 // Scintilla source code edit control
   2 /** @file CharacterSet.cxx
   3  ** Simple case functions for ASCII.
   4  ** Lexer infrastructure.
   5  **/
   6 // Copyright 1998-2010 by Neil Hodgson <neilh@scintilla.org>
   7 // The License.txt file describes the conditions under which this software may be distributed.
   8
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <ctype.h>
  12 #include <stdio.h>
  13 #include <assert.h>
  14
  15 #include "CharacterSet.h"
  16
  17 #ifdef SCI_NAMESPACE
  18 using namespace Scintilla;
  19 #endif
  20
  21 #ifdef SCI_NAMESPACE
  22 namespace Scintilla {
  23 #endif
  24
  25 int CompareCaseInsensitive(const char *a, const char *b) {
  26         while (*a && *b) {
  27                 if (*a != *b) {
  28                         char upperA = MakeUpperCase(*a);
  29                         char upperB = MakeUpperCase(*b);
  30                         if (upperA != upperB)
  31                                 return upperA - upperB;
  32                 }
  33                 a++;
  34                 b++;
  35         }
  36         // Either *a or *b is nul
  37         return *a - *b;
  38 }
  39
  40 int CompareNCaseInsensitive(const char *a, const char *b, size_t len) {
  41         while (*a && *b && len) {
  42                 if (*a != *b) {
  43                         char upperA = MakeUpperCase(*a);
  44                         char upperB = MakeUpperCase(*b);
  45                         if (upperA != upperB)
  46                                 return upperA - upperB;
  47                 }
  48                 a++;
  49                 b++;
  50                 len--;
  51         }
  52         if (len == 0)
  53                 return 0;
  54         else
  55                 // Either *a or *b is nul
  56                 return *a - *b;
  57 }
  58
  59 #ifdef SCI_NAMESPACE
  60 }
  61 #endif