scintilla/CharClassify.h

   1 // Scintilla source code edit control
   2 /** @file CharClassify.h
   3  ** Character classifications used by Document and RESearch.
   4  **/
   5 // Copyright 2006-2009 by Neil Hodgson <neilh@scintilla.org>
   6 // The License.txt file describes the conditions under which this software may be distributed.
   7
   8 #ifndef CHARCLASSIFY_H
   9 #define CHARCLASSIFY_H
  10
  11 class CharClassify {
  12 public:
  13         CharClassify();
  14
  15         enum cc { ccSpace, ccNewLine, ccWord, ccPunctuation };
  16         void SetDefaultCharClasses(bool includeWordClass);
  17         void SetCharClasses(const unsigned char *chars, cc newCharClass);
  18         cc GetClass(unsigned char ch) const { return static_cast<cc>(charClass[ch]);}
  19         bool IsWord(unsigned char ch) const { return static_cast<cc>(charClass[ch]) == ccWord;}
  20
  21 private:
  22         enum { maxChar=256 };
  23         unsigned char charClass[maxChar];    // not type cc to save space
  24 };
  25
  26 // These functions are implemented because each platform calls them something different.
  27 int CompareCaseInsensitive(const char *a, const char *b);
  28 int CompareNCaseInsensitive(const char *a, const char *b, size_t len);
  29
  30 inline char MakeUpperCase(char ch) {
  31         if (ch < 'a' || ch > 'z')
  32                 return ch;
  33         else
  34                 return static_cast<char>(ch - 'a' + 'A');
  35 }
  36
  37 #endif