scintilla/lexers/LexNull.cxx

   1 // Scintilla source code edit control
   2 /** @file LexNull.cxx
   3  ** Lexer for no language. Used for plain text and unrecognized files.
   4  **/
   5 // Copyright 1998-2001 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 "WordList.h"
  20 #include "LexAccessor.h"
  21 #include "Accessor.h"
  22 #include "StyleContext.h"
  23 #include "CharacterSet.h"
  24 #include "LexerModule.h"
  25
  26 using namespace Scintilla;
  27
  28 static void ColouriseNullDoc(Sci_PositionU startPos, Sci_Position length, int, WordList *[],
  29                             Accessor &styler) {
  30         // Null language means all style bytes are 0 so just mark the end - no need to fill in.
  31         if (length > 0) {
  32                 styler.StartAt(startPos + length - 1);
  33                 styler.StartSegment(startPos + length - 1);
  34                 styler.ColourTo(startPos + length - 1, 0);
  35         }
  36 }
  37
  38 LexerModule lmNull(SCLEX_NULL, ColouriseNullDoc, "null");