scintilla/lexlib/LexerBase.cxx

   1 // Scintilla source code edit control
   2 /** @file LexerBase.cxx
   3  ** A simple lexer with no state.
   4  **/
   5 // Copyright 1998-2010 by Neil Hodgson <neilh@scintilla.org>
   6 // The License.txt file describes the conditions under which this software may be distributed.
   7
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <stdio.h>
  11 #include <stdarg.h>
  12 #include <assert.h>
  13 #include <ctype.h>
  14
  15 #include "ILexer.h"
  16 #include "Scintilla.h"
  17 #include "SciLexer.h"
  18
  19 #include "PropSetSimple.h"
  20 #include "WordList.h"
  21 #include "LexAccessor.h"
  22 #include "Accessor.h"
  23 #include "LexerModule.h"
  24 #include "LexerBase.h"
  25
  26 #ifdef SCI_NAMESPACE
  27 using namespace Scintilla;
  28 #endif
  29
  30 LexerBase::LexerBase() {
  31         for (int wl = 0; wl < numWordLists; wl++)
  32                 keyWordLists[wl] = new WordList;
  33         keyWordLists[numWordLists] = 0;
  34 }
  35
  36 LexerBase::~LexerBase() {
  37         for (int wl = 0; wl < numWordLists; wl++) {
  38                 delete keyWordLists[wl];
  39                 keyWordLists[wl] = 0;
  40         }
  41         keyWordLists[numWordLists] = 0;
  42 }
  43
  44 void SCI_METHOD LexerBase::Release() {
  45         delete this;
  46 }
  47
  48 int SCI_METHOD LexerBase::Version() const {
  49         return lvOriginal;
  50 }
  51
  52 const char * SCI_METHOD LexerBase::PropertyNames() {
  53         return "";
  54 }
  55
  56 int SCI_METHOD LexerBase::PropertyType(const char *) {
  57         return SC_TYPE_BOOLEAN;
  58 }
  59
  60 const char * SCI_METHOD LexerBase::DescribeProperty(const char *) {
  61         return "";
  62 }
  63
  64 Sci_Position SCI_METHOD LexerBase::PropertySet(const char *key, const char *val) {
  65         const char *valOld = props.Get(key);
  66         if (strcmp(val, valOld) != 0) {
  67                 props.Set(key, val);
  68                 return 0;
  69         } else {
  70                 return -1;
  71         }
  72 }
  73
  74 const char * SCI_METHOD LexerBase::DescribeWordListSets() {
  75         return "";
  76 }
  77
  78 Sci_Position SCI_METHOD LexerBase::WordListSet(int n, const char *wl) {
  79         if (n < numWordLists) {
  80                 WordList wlNew;
  81                 wlNew.Set(wl);
  82                 if (*keyWordLists[n] != wlNew) {
  83                         keyWordLists[n]->Set(wl);
  84                         return 0;
  85                 }
  86         }
  87         return -1;
  88 }
  89
  90 void * SCI_METHOD LexerBase::PrivateCall(int, void *) {
  91         return 0;
  92 }