lexnsis.cxx.svn-base

Notepad++ is a generic source code editor (it tries to be anyway) and Notepad replacement written in

				// NSIS KeyWord,Function, Variable, UserDefined:
				if( cCurrChar == '$' || isNsisChar(cCurrChar) || cCurrChar == '!' )
				{
					styler.ColourTo(i-1,state);
				  state = SCE_NSIS_FUNCTION;

          // If it is a number, we must check and set style here first...
          if( isNsisNumber(cCurrChar) && (cNextChar == '\t' || cNextChar == ' ' || cNextChar == '\r' || cNextChar == '\n' ) )
              styler.ColourTo( i, SCE_NSIS_NUMBER);

					break;
				}

        if( cCurrChar == '/' && cNextChar == '*' )
        {
          styler.ColourTo(i-1,state);
          state = SCE_NSIS_COMMENTBOX;
          break;
        }

				break;
			case SCE_NSIS_COMMENT:
				if( cNextChar == '\n' || cNextChar == '\r' )
        {
          // Special case:
          if( cCurrChar == '\\' )
          {
            styler.ColourTo(i-2,state);
            styler.ColourTo(i,SCE_NSIS_DEFAULT);
          }
          else
          {
				    styler.ColourTo(i,state);
            state = SCE_NSIS_DEFAULT;
          }
        }
				break;
			case SCE_NSIS_STRINGDQ:
      case SCE_NSIS_STRINGLQ:
      case SCE_NSIS_STRINGRQ:

        if( styler.SafeGetCharAt(i-1) == '\\' && styler.SafeGetCharAt(i-2) == '$' )
          break; // Ignore the next character, even if it is a quote of some sort

        if( cCurrChar == '"' && state == SCE_NSIS_STRINGDQ )
				{
					styler.ColourTo(i,state);
				  state = SCE_NSIS_DEFAULT;
          break;
				}

        if( cCurrChar == '`' && state == SCE_NSIS_STRINGLQ )
        {
					styler.ColourTo(i,state);
				  state = SCE_NSIS_DEFAULT;
          break;
				}

        if( cCurrChar == '\'' && state == SCE_NSIS_STRINGRQ )
				{
					styler.ColourTo(i,state);
				  state = SCE_NSIS_DEFAULT;
          break;
				}

        if( cNextChar == '\r' || cNextChar == '\n' )
        {
          int nCurLine = styler.GetLine(i+1);
          int nBack = i;
          // We need to check if the previous line has a \ in it...
          bool bNextLine = false;

          while( nBack > 0 )
          {
            if( styler.GetLine(nBack) != nCurLine )
              break;

            char cTemp = styler.SafeGetCharAt(nBack, 'a'); // Letter 'a' is safe here

            if( cTemp == '\\' )
            {
              bNextLine = true;
              break;
            }
            if( cTemp != '\r' && cTemp != '\n' && cTemp != '\t' && cTemp != ' ' )
              break;

            nBack--;
          }

          if( bNextLine )
          {
            styler.ColourTo(i+1,state);
          }
          if( bNextLine == false )
          {
            styler.ColourTo(i,state);
				    state = SCE_NSIS_DEFAULT;
          }
        }
				break;

			case SCE_NSIS_FUNCTION:

				// NSIS KeyWord:
        if( cCurrChar == '$' )
          state = SCE_NSIS_DEFAULT;
        else if( cCurrChar == '\\' && (cNextChar == 'n' || cNextChar == 'r' || cNextChar == 't' ) )
          state = SCE_NSIS_DEFAULT;
				else if( (isNsisChar(cCurrChar) && !isNsisChar( cNextChar) && cNextChar != '}') || cCurrChar == '}' )
				{
					state = classifyWordNsis( styler.GetStartSegment(), i, keywordLists, styler );
					styler.ColourTo( i, state);
					state = SCE_NSIS_DEFAULT;
				}
				else if( !isNsisChar( cCurrChar ) && cCurrChar != '{' && cCurrChar != '}' )
				{
          if( classifyWordNsis( styler.GetStartSegment(), i-1, keywordLists, styler) == SCE_NSIS_NUMBER )
             styler.ColourTo( i-1, SCE_NSIS_NUMBER );

					state = SCE_NSIS_DEFAULT;

					if( cCurrChar == '"' )
					{
						state = SCE_NSIS_STRINGDQ;
						bVarInString = false;
            bClassicVarInString = false;
					}
					else if( cCurrChar == '`' )
					{
						state = SCE_NSIS_STRINGLQ;
						bVarInString = false;
            bClassicVarInString = false;
					}
					else if( cCurrChar == '\'' )
					{
						state = SCE_NSIS_STRINGRQ;
						bVarInString = false;
            bClassicVarInString = false;
					}
					else if( cCurrChar == '#' || cCurrChar == ';' )
          {
						state = SCE_NSIS_COMMENT;
          }
				}
				break;
      case SCE_NSIS_COMMENTBOX:

        if( styler.SafeGetCharAt(i-1) == '*' && cCurrChar == '/' )
        {
          styler.ColourTo(i,state);
          state = SCE_NSIS_DEFAULT;
        }
        break;
		}

		if( state == SCE_NSIS_COMMENT || state == SCE_NSIS_COMMENTBOX )
		{
			styler.ColourTo(i,state);
		}
		else if( state == SCE_NSIS_STRINGDQ || state == SCE_NSIS_STRINGLQ || state == SCE_NSIS_STRINGRQ )
		{
      bool bIngoreNextDollarSign = false;
      bool bUserVars = false;
      if( styler.GetPropertyInt("nsis.uservars") == 1 )
        bUserVars = true;

      if( bVarInString && cCurrChar == '$' )
      {
        bVarInString = false;
        bIngoreNextDollarSign = true;
      }
      else if( bVarInString && cCurrChar == '\\' && (cNextChar == 'n' || cNextChar == 'r' || cNextChar == 't' || cNextChar == '"' || cNextChar == '`' || cNextChar == '\'' ) )
      {
        styler.ColourTo( i+1, SCE_NSIS_STRINGVAR);
        bVarInString = false;
        bIngoreNextDollarSign = false;
      }

      // Covers "$INSTDIR and user vars like $MYVAR"
      else if( bVarInString && !isNsisChar(cNextChar) )
      {
        int nWordState = classifyWordNsis( styler.GetStartSegment(), i, keywordLists, styler);
				if( nWordState == SCE_NSIS_VARIABLE )
					styler.ColourTo( i, SCE_NSIS_STRINGVAR);
        else if( bUserVars )
          styler.ColourTo( i, SCE_NSIS_STRINGVAR);
        bVarInString = false;
      }
      // Covers "${TEST}..."
      else if( bClassicVarInString && cNextChar == '}' )
      {
        styler.ColourTo( i+1, SCE_NSIS_STRINGVAR);
				bClassicVarInString = false;
      }

      // Start of var in string
			if( !bIngoreNextDollarSign && cCurrChar == '$' && cNextChar == '{' )
			{
				styler.ColourTo( i-1, state);
				bClassicVarInString = true;
        bVarInString = false;
			}
      else if( !bIngoreNextDollarSign && cCurrChar == '$' )
      {
        styler.ColourTo( i-1, state);
        bVarInString = true;
        bClassicVarInString = false;
      }
		}
	}

  // Colourise remaining document
	styler.ColourTo(nLengthDoc-1,state);
}

static void FoldNsisDoc(unsigned int startPos, int length, int, WordList *[], Accessor &styler)
{
	// No folding enabled, no reason to continue...
	if( styler.GetPropertyInt("fold") == 0 )
		return;

  bool foldAtElse = styler.GetPropertyInt("fold.at.else", 0) == 1;
  bool foldUtilityCmd = styler.GetPropertyInt("nsis.foldutilcmd", 1) == 1;
  bool blockComment = false;

  int lineCurrent = styler.GetLine(startPos);
  unsigned int safeStartPos = styler.LineStart( lineCurrent );

  bool bArg1 = true;
  int nWordStart = -1;

  int levelCurrent = SC_FOLDLEVELBASE;
	if (lineCurrent > 0)
		levelCurrent = styler.LevelAt(lineCurrent-1) >> 16;
	int levelNext = levelCurrent;
  int style = styler.StyleAt(safeStartPos);
  if( style == SCE_NSIS_COMMENTBOX )
  {
    if( styler.SafeGetCharAt(safeStartPos) == '/' && styler.SafeGetCharAt(safeStartPos+1) == '*' )
      levelNext++;
    blockComment = true;
  }

  for (unsigned int i = safeStartPos; i < startPos + length; i++)
	{
    char chCurr = styler.SafeGetCharAt(i);
    style = styler.StyleAt(i);
    if( blockComment && style != SCE_NSIS_COMMENTBOX )
    {
      levelNext--;
      blockComment = false;
    }
    else if( !blockComment && style == SCE_NSIS_COMMENTBOX )
    {
      levelNext++;
      blockComment = true;
    }

    if( bArg1 && !blockComment)
    {
      if( nWordStart == -1 && (isNsisLetter(chCurr) || chCurr == '!') )
      {
        nWordStart = i;
      }
      else if( isNsisLetter(chCurr) == false && nWordStart > -1 )
      {
        int newLevel = calculateFoldNsis( nWordStart, i-1, levelNext, styler, foldAtElse, foldUtilityCmd );

        if( newLevel == levelNext )
        {
          if( foldAtElse && foldUtilityCmd )
          {
            if( NsisNextLineHasElse(i, startPos + length, styler) )
              levelNext--;
          }
        }
        else
          levelNext = newLevel;
        bArg1 = false;
      }
    }

    if( chCurr == '\n' )
    {
      if( bArg1 && foldAtElse && foldUtilityCmd && !blockComment )
      {
        if( NsisNextLineHasElse(i, startPos + length, styler) )
          levelNext--;
      }

      // If we are on a new line...
      int levelUse = levelCurrent;
			int lev = levelUse | levelNext << 16;
      if (levelUse < levelNext )
				lev |= SC_FOLDLEVELHEADERFLAG;
			if (lev != styler.LevelAt(lineCurrent))
				styler.SetLevel(lineCurrent, lev);

			lineCurrent++;
			levelCurrent = levelNext;
      bArg1 = true; // New line, lets look at first argument again
      nWordStart = -1;
    }
  }

	int levelUse = levelCurrent;
	int lev = levelUse | levelNext << 16;
	if (levelUse < levelNext)
		lev |= SC_FOLDLEVELHEADERFLAG;
	if (lev != styler.LevelAt(lineCurrent))
		styler.SetLevel(lineCurrent, lev);
}

static const char * const nsisWordLists[] = {
	"Functions",
	"Variables",
	"Lables",
	"UserDefined",
	0, };


LexerModule lmNsis(SCLEX_NSIS, ColouriseNsisDoc, "nsis", FoldNsisDoc, nsisWordLists);