Exemplo n.º 1
0
//=============================================================================
// Folding the code
static void FoldNoBoxVHDLDoc(
  unsigned int startPos,
  int length,
  int,
  Accessor &styler)
{
  // Decided it would be smarter to have the lexer have all keywords included. Therefore I
  // don't check if the style for the keywords that I use to adjust the levels.
  char words[] =
    "architecture begin case component else elsif end entity generate loop package process record then "
    "procedure function when";
  WordList keywords;
  keywords.Set(words);

  bool foldComment      = styler.GetPropertyInt("fold.comment", 1) != 0;
  bool foldCompact      = styler.GetPropertyInt("fold.compact", 1) != 0;
  bool foldAtElse       = styler.GetPropertyInt("fold.at.else", 1) != 0;
  bool foldAtBegin      = styler.GetPropertyInt("fold.at.Begin", 1) != 0;
  bool foldAtParenthese = styler.GetPropertyInt("fold.at.Parenthese", 1) != 0;
  //bool foldAtWhen       = styler.GetPropertyInt("fold.at.When", 1) != 0;  //< fold at when in case statements

  int  visibleChars     = 0;
  unsigned int endPos   = startPos + length;

  int lineCurrent       = styler.GetLine(startPos);
  int levelCurrent      = SC_FOLDLEVELBASE;
  if(lineCurrent > 0)
    levelCurrent        = styler.LevelAt(lineCurrent-1) >> 16;
  //int levelMinCurrent   = levelCurrent;
  int levelMinCurrentElse = levelCurrent;   //< Used for folding at 'else'
  int levelMinCurrentBegin = levelCurrent;  //< Used for folding at 'begin'
  int levelNext         = levelCurrent;

  /***************************************/
  int lastStart         = 0;
  char prevWord[32]     = "";

  /***************************************/
  // Find prev word
  // The logic for going up or down a level depends on a the previous keyword
  // This code could be cleaned up.
  int end = 0;
  unsigned int j;
  for(j = startPos; j>0; j--)
  {
    char ch       = styler.SafeGetCharAt(j);
    char chPrev   = styler.SafeGetCharAt(j-1);
    int style     = styler.StyleAt(j);
    int stylePrev = styler.StyleAt(j-1);
    if ((stylePrev != SCE_VHDL_COMMENT) && (stylePrev != SCE_VHDL_STRING))
    {
      if(IsAWordChar(chPrev) && !IsAWordChar(ch))
      {
        end = j-1;
      }
    }
    if ((style != SCE_VHDL_COMMENT) && (style != SCE_VHDL_STRING))
    {
      if(!IsAWordChar(chPrev) && IsAWordStart(ch) && (end != 0))
      {
        char s[32];
        unsigned int k;
        for(k=0; (k<31 ) && (k<end-j+1 ); k++) {
          s[k] = static_cast<char>(tolower(styler[j+k]));
        }
        s[k] = '\0';

        if(keywords.InList(s)) {
          strcpy(prevWord, s);
          break;
        }
      }
    }
  }
  for(j=j+static_cast<unsigned int>(strlen(prevWord)); j<endPos; j++)
  {
    char ch       = styler.SafeGetCharAt(j);
    int style     = styler.StyleAt(j);
    if ((style != SCE_VHDL_COMMENT) && (style != SCE_VHDL_STRING))
    {
      if((ch == ';') && (strcmp(prevWord, "end") == 0))
      {
        strcpy(prevWord, ";");
      }
    }
  }

  char  chNext          = styler[startPos];
  char  chPrev          = '\0';
  char  chNextNonBlank;
  int   styleNext       = styler.StyleAt(startPos);
  //Platform::DebugPrintf("Line[%04d] Prev[%20s] ************************* Level[%x]\n", lineCurrent+1, prevWord, levelCurrent);

  /***************************************/
  for (unsigned int i = startPos; i < endPos; i++)
  {
    char ch         = chNext;
    chNext          = styler.SafeGetCharAt(i + 1);
    chPrev          = styler.SafeGetCharAt(i - 1);
    chNextNonBlank  = chNext;
    unsigned int j  = i+1;
    while(IsABlank(chNextNonBlank) && j<endPos)
    {
      j ++ ;
      chNextNonBlank = styler.SafeGetCharAt(j);
    }
    int style           = styleNext;
    styleNext       = styler.StyleAt(i + 1);
    bool atEOL      = (ch == '\r' && chNext != '\n') || (ch == '\n');

		if (foldComment && atEOL && IsCommentLine(lineCurrent, styler))
    {
      if(!IsCommentLine(lineCurrent-1, styler) && IsCommentLine(lineCurrent+1, styler))
      {
        levelNext++;
      }
      else if(IsCommentLine(lineCurrent-1, styler) && !IsCommentLine(lineCurrent+1, styler))
      {
        levelNext--;
      }
    }

    if ((style == SCE_VHDL_OPERATOR) && foldAtParenthese)
    {
      if(ch == '(') {
        levelNext++;
      } else if (ch == ')') {
        levelNext--;
      }
    }

    if ((style != SCE_VHDL_COMMENT) && (style != SCE_VHDL_STRING))
    {
      if((ch == ';') && (strcmp(prevWord, "end") == 0))
      {
        strcpy(prevWord, ";");
      }

      if(!IsAWordChar(chPrev) && IsAWordStart(ch))
      {
        lastStart = i;
      }

      if(iswordchar(ch) && !iswordchar(chNext)) {
        char s[32];
        unsigned int k;
        for(k=0; (k<31 ) && (k<i-lastStart+1 ); k++) {
          s[k] = static_cast<char>(tolower(styler[lastStart+k]));
        }
        s[k] = '\0';

        if(keywords.InList(s))
        {
          if (
            strcmp(s, "architecture") == 0  ||
            strcmp(s, "case") == 0          ||
            strcmp(s, "component") == 0     ||
            strcmp(s, "entity") == 0        ||
            strcmp(s, "generate") == 0      ||
            strcmp(s, "loop") == 0          ||
            strcmp(s, "package") ==0        ||
            strcmp(s, "process") == 0       ||
            strcmp(s, "record") == 0        ||
            strcmp(s, "then") == 0)
          {
            if (strcmp(prevWord, "end") != 0)
            {
              if (levelMinCurrentElse > levelNext) {
                levelMinCurrentElse = levelNext;
              }
              levelNext++;
            }
          } else if (
            strcmp(s, "procedure") == 0     ||
            strcmp(s, "function") == 0)
          {
            if (strcmp(prevWord, "end") != 0) // check for "end procedure" etc.
            { // This code checks to see if the procedure / function is a definition within a "package"
              // rather than the actual code in the body.
              int BracketLevel = 0;
              for(int j=i+1; j<styler.Length(); j++)
              {
                int LocalStyle = styler.StyleAt(j);
                char LocalCh = styler.SafeGetCharAt(j);
                if(LocalCh == '(') BracketLevel++;
                if(LocalCh == ')') BracketLevel--;
                if(
                  (BracketLevel == 0) &&
                  (LocalStyle != SCE_VHDL_COMMENT) &&
                  (LocalStyle != SCE_VHDL_STRING) &&
                  !iswordchar(styler.SafeGetCharAt(j-1)) &&
                  styler.Match(j, "is") &&
                  !iswordchar(styler.SafeGetCharAt(j+2)))
                {
                  if (levelMinCurrentElse > levelNext) {
                    levelMinCurrentElse = levelNext;
                  }
                  levelNext++;
                  break;
                }
                if((BracketLevel == 0) && (LocalCh == ';'))
                {
                  break;
                }
              }
            }

          } else if (strcmp(s, "end") == 0) {
            levelNext--;
          }  else if(strcmp(s, "elsif") == 0) { // elsif is followed by then so folding occurs correctly
            levelNext--;
          } else if (strcmp(s, "else") == 0) {
            if(strcmp(prevWord, "when") != 0)  // ignore a <= x when y else z;
            {
              levelMinCurrentElse = levelNext - 1;  // VHDL else is all on its own so just dec. the min level
            }
          } else if(
            ((strcmp(s, "begin") == 0) && (strcmp(prevWord, "architecture") == 0)) ||
            ((strcmp(s, "begin") == 0) && (strcmp(prevWord, "function") == 0)) ||
            ((strcmp(s, "begin") == 0) && (strcmp(prevWord, "procedure") == 0)))
          {
            levelMinCurrentBegin = levelNext - 1;
          }
          //Platform::DebugPrintf("Line[%04d] Prev[%20s] Cur[%20s] Level[%x]\n", lineCurrent+1, prevWord, s, levelCurrent);
          strcpy(prevWord, s);
        }
      }
    }
    if (atEOL) {
      int levelUse = levelCurrent;

      if (foldAtElse && (levelMinCurrentElse < levelUse)) {
        levelUse = levelMinCurrentElse;
      }
      if (foldAtBegin && (levelMinCurrentBegin < levelUse)) {
        levelUse = levelMinCurrentBegin;
      }
      int lev = levelUse | levelNext << 16;
      if (visibleChars == 0 && foldCompact)
        lev |= SC_FOLDLEVELWHITEFLAG;

      if (levelUse < levelNext)
        lev |= SC_FOLDLEVELHEADERFLAG;
      if (lev != styler.LevelAt(lineCurrent)) {
        styler.SetLevel(lineCurrent, lev);
      }
      //Platform::DebugPrintf("Line[%04d] ---------------------------------------------------- Level[%x]\n", lineCurrent+1, levelCurrent);
      lineCurrent++;
      levelCurrent = levelNext;
      //levelMinCurrent = levelCurrent;
      levelMinCurrentElse = levelCurrent;
      levelMinCurrentBegin = levelCurrent;
      visibleChars = 0;
    }
    /***************************************/
    if (!isspacechar(ch)) visibleChars++;
  }

  /***************************************/
//  Platform::DebugPrintf("Line[%04d] ---------------------------------------------------- Level[%x]\n", lineCurrent+1, levelCurrent);
}
Exemplo n.º 2
0
static void ColouriseBashDoc(Sci_PositionU startPos, Sci_Position length, int initStyle,
							 WordList *keywordlists[], Accessor &styler) {

	WordList &keywords = *keywordlists[0];
	WordList cmdDelimiter, bashStruct, bashStruct_in;
	cmdDelimiter.Set("| || |& & && ; ;; ( ) { }");
	bashStruct.Set("if elif fi while until else then do done esac eval");
	bashStruct_in.Set("for case select");

	CharacterSet setWordStart(CharacterSet::setAlpha, "_");
	// note that [+-] are often parts of identifiers in shell scripts
	CharacterSet setWord(CharacterSet::setAlphaNum, "._+-");
	CharacterSet setMetaCharacter(CharacterSet::setNone, "|&;()<> \t\r\n");
	setMetaCharacter.Add(0);
	CharacterSet setBashOperator(CharacterSet::setNone, "^&%()-+=|{}[]:;>,*/<?!.~@");
	CharacterSet setSingleCharOp(CharacterSet::setNone, "rwxoRWXOezsfdlpSbctugkTBMACahGLNn");
	CharacterSet setParam(CharacterSet::setAlphaNum, "$_");
	CharacterSet setHereDoc(CharacterSet::setAlpha, "_\\-+!%*,./:?@[]^`{}~");
	CharacterSet setHereDoc2(CharacterSet::setAlphaNum, "_-+!%*,./:=?@[]^`{}~");
	CharacterSet setLeftShift(CharacterSet::setDigits, "$");

	class HereDocCls {	// Class to manage HERE document elements
	public:
		int State;		// 0: '<<' encountered
		// 1: collect the delimiter
		// 2: here doc text (lines after the delimiter)
		int Quote;		// the char after '<<'
		bool Quoted;		// true if Quote in ('\'','"','`')
		bool Indent;		// indented delimiter (for <<-)
		int DelimiterLength;	// strlen(Delimiter)
		char Delimiter[HERE_DELIM_MAX];	// the Delimiter
		HereDocCls() {
			State = 0;
			Quote = 0;
			Quoted = false;
			Indent = 0;
			DelimiterLength = 0;
			Delimiter[0] = '\0';
		}
		void Append(int ch) {
			Delimiter[DelimiterLength++] = static_cast<char>(ch);
			Delimiter[DelimiterLength] = '\0';
		}
		~HereDocCls() {
		}
	};
	HereDocCls HereDoc;

	class QuoteCls {	// Class to manage quote pairs (simplified vs LexPerl)
		public:
		int Count;
		int Up, Down;
		QuoteCls() {
			Count = 0;
			Up    = '\0';
			Down  = '\0';
		}
		void Open(int u) {
			Count++;
			Up    = u;
			Down  = opposite(Up);
		}
		void Start(int u) {
			Count = 0;
			Open(u);
		}
	};
	QuoteCls Quote;

	class QuoteStackCls {	// Class to manage quote pairs that nest
		public:
		int Count;
		int Up, Down;
		int Style;
		int Depth;			// levels pushed
		int CountStack[BASH_DELIM_STACK_MAX];
		int UpStack   [BASH_DELIM_STACK_MAX];
		int StyleStack[BASH_DELIM_STACK_MAX];
		QuoteStackCls() {
			Count = 0;
			Up    = '\0';
			Down  = '\0';
			Style = 0;
			Depth = 0;
		}
		void Start(int u, int s) {
			Count = 1;
			Up    = u;
			Down  = opposite(Up);
			Style = s;
		}
		void Push(int u, int s) {
			if (Depth >= BASH_DELIM_STACK_MAX)
				return;
			CountStack[Depth] = Count;
			UpStack   [Depth] = Up;
			StyleStack[Depth] = Style;
			Depth++;
			Count = 1;
			Up    = u;
			Down  = opposite(Up);
			Style = s;
		}
		void Pop(void) {
			if (Depth <= 0)
				return;
			Depth--;
			Count = CountStack[Depth];
			Up    = UpStack   [Depth];
			Style = StyleStack[Depth];
			Down  = opposite(Up);
		}
		~QuoteStackCls() {
		}
	};
	QuoteStackCls QuoteStack;

	int numBase = 0;
	int digit;
	Sci_PositionU endPos = startPos + length;
	int cmdState = BASH_CMD_START;
	int testExprType = 0;

	// Always backtracks to the start of a line that is not a continuation
	// of the previous line (i.e. start of a bash command segment)
	Sci_Position ln = styler.GetLine(startPos);
	if (ln > 0 && startPos == static_cast<Sci_PositionU>(styler.LineStart(ln)))
		ln--;
	for (;;) {
		startPos = styler.LineStart(ln);
		if (ln == 0 || styler.GetLineState(ln) == BASH_CMD_START)
			break;
		ln--;
	}
	initStyle = SCE_SH_DEFAULT;

	StyleContext sc(startPos, endPos - startPos, initStyle, styler);

	for (; sc.More(); sc.Forward()) {

		// handle line continuation, updates per-line stored state
		if (sc.atLineStart) {
			ln = styler.GetLine(sc.currentPos);
			if (sc.state == SCE_SH_STRING
			 || sc.state == SCE_SH_BACKTICKS
			 || sc.state == SCE_SH_CHARACTER
			 || sc.state == SCE_SH_HERE_Q
			 || sc.state == SCE_SH_COMMENTLINE
			 || sc.state == SCE_SH_PARAM) {
				// force backtrack while retaining cmdState
				styler.SetLineState(ln, BASH_CMD_BODY);
			} else {
				if (ln > 0) {
					if ((sc.GetRelative(-3) == '\\' && sc.GetRelative(-2) == '\r' && sc.chPrev == '\n')
					 || sc.GetRelative(-2) == '\\') {	// handle '\' line continuation
						// retain last line's state
					} else
						cmdState = BASH_CMD_START;
				}
				styler.SetLineState(ln, cmdState);
			}
		}

		// controls change of cmdState at the end of a non-whitespace element
		// states BODY|TEST|ARITH persist until the end of a command segment
		// state WORD persist, but ends with 'in' or 'do' construct keywords
		int cmdStateNew = BASH_CMD_BODY;
		if (cmdState == BASH_CMD_TEST || cmdState == BASH_CMD_ARITH || cmdState == BASH_CMD_WORD)
			cmdStateNew = cmdState;
		int stylePrev = sc.state;

		// Determine if the current state should terminate.
		switch (sc.state) {
			case SCE_SH_OPERATOR:
				sc.SetState(SCE_SH_DEFAULT);
				if (cmdState == BASH_CMD_DELIM)		// if command delimiter, start new command
					cmdStateNew = BASH_CMD_START;
				else if (sc.chPrev == '\\')			// propagate command state if line continued
					cmdStateNew = cmdState;
				break;
			case SCE_SH_WORD:
				// "." never used in Bash variable names but used in file names
				if (!setWord.Contains(sc.ch)) {
					char s[500];
					char s2[10];
					sc.GetCurrent(s, sizeof(s));
					// allow keywords ending in a whitespace or command delimiter
					s2[0] = static_cast<char>(sc.ch);
					s2[1] = '\0';
					bool keywordEnds = IsASpace(sc.ch) || cmdDelimiter.InList(s2);
					// 'in' or 'do' may be construct keywords
					if (cmdState == BASH_CMD_WORD) {
						if (strcmp(s, "in") == 0 && keywordEnds)
							cmdStateNew = BASH_CMD_BODY;
						else if (strcmp(s, "do") == 0 && keywordEnds)
							cmdStateNew = BASH_CMD_START;
						else
							sc.ChangeState(SCE_SH_IDENTIFIER);
						sc.SetState(SCE_SH_DEFAULT);
						break;
					}
					// a 'test' keyword starts a test expression
					if (strcmp(s, "test") == 0) {
						if (cmdState == BASH_CMD_START && keywordEnds) {
							cmdStateNew = BASH_CMD_TEST;
							testExprType = 0;
						} else
							sc.ChangeState(SCE_SH_IDENTIFIER);
					}
					// detect bash construct keywords
					else if (bashStruct.InList(s)) {
						if (cmdState == BASH_CMD_START && keywordEnds)
							cmdStateNew = BASH_CMD_START;
						else
							sc.ChangeState(SCE_SH_IDENTIFIER);
					}
					// 'for'|'case'|'select' needs 'in'|'do' to be highlighted later
					else if (bashStruct_in.InList(s)) {
						if (cmdState == BASH_CMD_START && keywordEnds)
							cmdStateNew = BASH_CMD_WORD;
						else
							sc.ChangeState(SCE_SH_IDENTIFIER);
					}
					// disambiguate option items and file test operators
					else if (s[0] == '-') {
						if (cmdState != BASH_CMD_TEST)
							sc.ChangeState(SCE_SH_IDENTIFIER);
					}
					// disambiguate keywords and identifiers
					else if (cmdState != BASH_CMD_START
						  || !(keywords.InList(s) && keywordEnds)) {
						sc.ChangeState(SCE_SH_IDENTIFIER);
					}
					sc.SetState(SCE_SH_DEFAULT);
				}
				break;
			case SCE_SH_IDENTIFIER:
				if (sc.chPrev == '\\') {	// for escaped chars
					sc.ForwardSetState(SCE_SH_DEFAULT);
				} else if (!setWord.Contains(sc.ch)) {
					sc.SetState(SCE_SH_DEFAULT);
				} else if (cmdState == BASH_CMD_ARITH && !setWordStart.Contains(sc.ch)) {
					sc.SetState(SCE_SH_DEFAULT);
				}
				break;
			case SCE_SH_NUMBER:
				digit = translateBashDigit(sc.ch);
				if (numBase == BASH_BASE_DECIMAL) {
					if (sc.ch == '#') {
						char s[10];
						sc.GetCurrent(s, sizeof(s));
						numBase = getBashNumberBase(s);
						if (numBase != BASH_BASE_ERROR)
							break;
					} else if (IsADigit(sc.ch))
						break;
				} else if (numBase == BASH_BASE_HEX) {
					if (IsADigit(sc.ch, 16))
						break;
#ifdef PEDANTIC_OCTAL
				} else if (numBase == BASH_BASE_OCTAL ||
						   numBase == BASH_BASE_OCTAL_ERROR) {
					if (digit <= 7)
						break;
					if (digit <= 9) {
						numBase = BASH_BASE_OCTAL_ERROR;
						break;
					}
#endif
				} else if (numBase == BASH_BASE_ERROR) {
					if (digit <= 9)
						break;
				} else {	// DD#DDDD number style handling
					if (digit != BASH_BASE_ERROR) {
						if (numBase <= 36) {
							// case-insensitive if base<=36
							if (digit >= 36) digit -= 26;
						}
						if (digit < numBase)
							break;
						if (digit <= 9) {
							numBase = BASH_BASE_ERROR;
							break;
						}
					}
				}
				// fallthrough when number is at an end or error
				if (numBase == BASH_BASE_ERROR
#ifdef PEDANTIC_OCTAL
					|| numBase == BASH_BASE_OCTAL_ERROR
#endif
				) {
					sc.ChangeState(SCE_SH_ERROR);
				}
				sc.SetState(SCE_SH_DEFAULT);
				break;
			case SCE_SH_COMMENTLINE:
				if (sc.atLineEnd && sc.chPrev != '\\') {
					sc.SetState(SCE_SH_DEFAULT);
				}
				break;
			case SCE_SH_HERE_DELIM:
				// From Bash info:
				// ---------------
				// Specifier format is: <<[-]WORD
				// Optional '-' is for removal of leading tabs from here-doc.
				// Whitespace acceptable after <<[-] operator
				//
				if (HereDoc.State == 0) { // '<<' encountered
					HereDoc.Quote = sc.chNext;
					HereDoc.Quoted = false;
					HereDoc.DelimiterLength = 0;
					HereDoc.Delimiter[HereDoc.DelimiterLength] = '\0';
					if (sc.chNext == '\'' || sc.chNext == '\"') {	// a quoted here-doc delimiter (' or ")
						sc.Forward();
						HereDoc.Quoted = true;
						HereDoc.State = 1;
					} else if (setHereDoc.Contains(sc.chNext) ||
					           (sc.chNext == '=' && cmdState != BASH_CMD_ARITH)) {
						// an unquoted here-doc delimiter, no special handling
						HereDoc.State = 1;
					} else if (sc.chNext == '<') {	// HERE string <<<
						sc.Forward();
						sc.ForwardSetState(SCE_SH_DEFAULT);
					} else if (IsASpace(sc.chNext)) {
						// eat whitespace
					} else if (setLeftShift.Contains(sc.chNext) ||
					           (sc.chNext == '=' && cmdState == BASH_CMD_ARITH)) {
						// left shift <<$var or <<= cases
						sc.ChangeState(SCE_SH_OPERATOR);
						sc.ForwardSetState(SCE_SH_DEFAULT);
					} else {
						// symbols terminates; deprecated zero-length delimiter
						HereDoc.State = 1;
					}
				} else if (HereDoc.State == 1) { // collect the delimiter
					// * if single quoted, there's no escape
					// * if double quoted, there are \\ and \" escapes
					if ((HereDoc.Quote == '\'' && sc.ch != HereDoc.Quote) ||
					    (HereDoc.Quoted && sc.ch != HereDoc.Quote && sc.ch != '\\') ||
					    (HereDoc.Quote != '\'' && sc.chPrev == '\\') ||
					    (setHereDoc2.Contains(sc.ch))) {
						HereDoc.Append(sc.ch);
					} else if (HereDoc.Quoted && sc.ch == HereDoc.Quote) {	// closing quote => end of delimiter
						sc.ForwardSetState(SCE_SH_DEFAULT);
					} else if (sc.ch == '\\') {
						if (HereDoc.Quoted && sc.chNext != HereDoc.Quote && sc.chNext != '\\') {
							// in quoted prefixes only \ and the quote eat the escape
							HereDoc.Append(sc.ch);
						} else {
							// skip escape prefix
						}
					} else if (!HereDoc.Quoted) {
						sc.SetState(SCE_SH_DEFAULT);
					}
					if (HereDoc.DelimiterLength >= HERE_DELIM_MAX - 1) {	// force blowup
						sc.SetState(SCE_SH_ERROR);
						HereDoc.State = 0;
					}
				}
				break;
			case SCE_SH_HERE_Q:
				// HereDoc.State == 2
				if (sc.atLineStart) {
					sc.SetState(SCE_SH_HERE_Q);
					int prefixws = 0;
					while (sc.ch == '\t' && !sc.atLineEnd) {	// tabulation prefix
						sc.Forward();
						prefixws++;
					}
					if (prefixws > 0)
						sc.SetState(SCE_SH_HERE_Q);
					while (!sc.atLineEnd) {
						sc.Forward();
					}
					char s[HERE_DELIM_MAX];
					sc.GetCurrent(s, sizeof(s));
					if (sc.LengthCurrent() == 0) {  // '' or "" delimiters
						if ((prefixws == 0 || HereDoc.Indent) &&
							HereDoc.Quoted && HereDoc.DelimiterLength == 0)
							sc.SetState(SCE_SH_DEFAULT);
						break;
					}
					if (s[strlen(s) - 1] == '\r')
						s[strlen(s) - 1] = '\0';
					if (strcmp(HereDoc.Delimiter, s) == 0) {
						if ((prefixws == 0) ||	// indentation rule
							(prefixws > 0 && HereDoc.Indent)) {
							sc.SetState(SCE_SH_DEFAULT);
							break;
						}
					}
				}
				break;
			case SCE_SH_SCALAR:	// variable names
				if (!setParam.Contains(sc.ch)) {
					if (sc.LengthCurrent() == 1) {
						// Special variable: $(, $_ etc.
						sc.ForwardSetState(SCE_SH_DEFAULT);
					} else {
						sc.SetState(SCE_SH_DEFAULT);
					}
				}
				break;
			case SCE_SH_STRING:	// delimited styles, can nest
			case SCE_SH_BACKTICKS:
				if (sc.ch == '\\' && QuoteStack.Up != '\\') {
					if (QuoteStack.Style != BASH_DELIM_LITERAL)
						sc.Forward();
				} else if (sc.ch == QuoteStack.Down) {
					QuoteStack.Count--;
					if (QuoteStack.Count == 0) {
						if (QuoteStack.Depth > 0) {
							QuoteStack.Pop();
						} else
							sc.ForwardSetState(SCE_SH_DEFAULT);
					}
				} else if (sc.ch == QuoteStack.Up) {
					QuoteStack.Count++;
				} else {
					if (QuoteStack.Style == BASH_DELIM_STRING ||
						QuoteStack.Style == BASH_DELIM_LSTRING
					) {	// do nesting for "string", $"locale-string"
						if (sc.ch == '`') {
							QuoteStack.Push(sc.ch, BASH_DELIM_BACKTICK);
						} else if (sc.ch == '$' && sc.chNext == '(') {
							sc.Forward();
							QuoteStack.Push(sc.ch, BASH_DELIM_COMMAND);
						}
					} else if (QuoteStack.Style == BASH_DELIM_COMMAND ||
							   QuoteStack.Style == BASH_DELIM_BACKTICK
					) {	// do nesting for $(command), `command`
						if (sc.ch == '\'') {
							QuoteStack.Push(sc.ch, BASH_DELIM_LITERAL);
						} else if (sc.ch == '\"') {
							QuoteStack.Push(sc.ch, BASH_DELIM_STRING);
						} else if (sc.ch == '`') {
							QuoteStack.Push(sc.ch, BASH_DELIM_BACKTICK);
						} else if (sc.ch == '$') {
							if (sc.chNext == '\'') {
								sc.Forward();
								QuoteStack.Push(sc.ch, BASH_DELIM_CSTRING);
							} else if (sc.chNext == '\"') {
								sc.Forward();
								QuoteStack.Push(sc.ch, BASH_DELIM_LSTRING);
							} else if (sc.chNext == '(') {
								sc.Forward();
								QuoteStack.Push(sc.ch, BASH_DELIM_COMMAND);
							}
						}
					}
				}
				break;
			case SCE_SH_PARAM: // ${parameter}
				if (sc.ch == '\\' && Quote.Up != '\\') {
					sc.Forward();
				} else if (sc.ch == Quote.Down) {
					Quote.Count--;
					if (Quote.Count == 0) {
						sc.ForwardSetState(SCE_SH_DEFAULT);
					}
				} else if (sc.ch == Quote.Up) {
					Quote.Count++;
				}
				break;
			case SCE_SH_CHARACTER: // singly-quoted strings
				if (sc.ch == Quote.Down) {
					Quote.Count--;
					if (Quote.Count == 0) {
						sc.ForwardSetState(SCE_SH_DEFAULT);
					}
				}
				break;
		}

		// Must check end of HereDoc state 1 before default state is handled
		if (HereDoc.State == 1 && sc.atLineEnd) {
			// Begin of here-doc (the line after the here-doc delimiter):
			// Lexically, the here-doc starts from the next line after the >>, but the
			// first line of here-doc seem to follow the style of the last EOL sequence
			HereDoc.State = 2;
			if (HereDoc.Quoted) {
				if (sc.state == SCE_SH_HERE_DELIM) {
					// Missing quote at end of string! Syntax error in bash 4.3
					// Mark this bit as an error, do not colour any here-doc
					sc.ChangeState(SCE_SH_ERROR);
					sc.SetState(SCE_SH_DEFAULT);
				} else {
					// HereDoc.Quote always == '\''
					sc.SetState(SCE_SH_HERE_Q);
				}
			} else if (HereDoc.DelimiterLength == 0) {
				// no delimiter, illegal (but '' and "" are legal)
				sc.ChangeState(SCE_SH_ERROR);
				sc.SetState(SCE_SH_DEFAULT);
			} else {
				sc.SetState(SCE_SH_HERE_Q);
			}
		}

		// update cmdState about the current command segment
		if (stylePrev != SCE_SH_DEFAULT && sc.state == SCE_SH_DEFAULT) {
			cmdState = cmdStateNew;
		}
		// Determine if a new state should be entered.
		if (sc.state == SCE_SH_DEFAULT) {
			if (sc.ch == '\\') {
				// Bash can escape any non-newline as a literal
				sc.SetState(SCE_SH_IDENTIFIER);
				if (sc.chNext == '\r' || sc.chNext == '\n')
					sc.SetState(SCE_SH_OPERATOR);
			} else if (IsADigit(sc.ch)) {
				sc.SetState(SCE_SH_NUMBER);
				numBase = BASH_BASE_DECIMAL;
				if (sc.ch == '0') {	// hex,octal
					if (sc.chNext == 'x' || sc.chNext == 'X') {
						numBase = BASH_BASE_HEX;
						sc.Forward();
					} else if (IsADigit(sc.chNext)) {
#ifdef PEDANTIC_OCTAL
						numBase = BASH_BASE_OCTAL;
#else
						numBase = BASH_BASE_HEX;
#endif
					}
				}
			} else if (setWordStart.Contains(sc.ch)) {
				sc.SetState(SCE_SH_WORD);
			} else if (sc.ch == '#') {
				if (stylePrev != SCE_SH_WORD && stylePrev != SCE_SH_IDENTIFIER &&
					(sc.currentPos == 0 || setMetaCharacter.Contains(sc.chPrev))) {
					sc.SetState(SCE_SH_COMMENTLINE);
				} else {
					sc.SetState(SCE_SH_WORD);
				}
				// handle some zsh features within arithmetic expressions only
				if (cmdState == BASH_CMD_ARITH) {
					if (sc.chPrev == '[') {	// [#8] [##8] output digit setting
						sc.SetState(SCE_SH_WORD);
						if (sc.chNext == '#') {
							sc.Forward();
						}
					} else if (sc.Match("##^") && IsUpperCase(sc.GetRelative(3))) {	// ##^A
						sc.SetState(SCE_SH_IDENTIFIER);
						sc.Forward(3);
					} else if (sc.chNext == '#' && !IsASpace(sc.GetRelative(2))) {	// ##a
						sc.SetState(SCE_SH_IDENTIFIER);
						sc.Forward(2);
					} else if (setWordStart.Contains(sc.chNext)) {	// #name
						sc.SetState(SCE_SH_IDENTIFIER);
					}
				}
			} else if (sc.ch == '\"') {
				sc.SetState(SCE_SH_STRING);
				QuoteStack.Start(sc.ch, BASH_DELIM_STRING);
			} else if (sc.ch == '\'') {
				sc.SetState(SCE_SH_CHARACTER);
				Quote.Start(sc.ch);
			} else if (sc.ch == '`') {
				sc.SetState(SCE_SH_BACKTICKS);
				QuoteStack.Start(sc.ch, BASH_DELIM_BACKTICK);
			} else if (sc.ch == '$') {
				if (sc.Match("$((")) {
					sc.SetState(SCE_SH_OPERATOR);	// handle '((' later
					continue;
				}
				sc.SetState(SCE_SH_SCALAR);
				sc.Forward();
				if (sc.ch == '{') {
					sc.ChangeState(SCE_SH_PARAM);
					Quote.Start(sc.ch);
				} else if (sc.ch == '\'') {
					sc.ChangeState(SCE_SH_STRING);
					QuoteStack.Start(sc.ch, BASH_DELIM_CSTRING);
				} else if (sc.ch == '"') {
					sc.ChangeState(SCE_SH_STRING);
					QuoteStack.Start(sc.ch, BASH_DELIM_LSTRING);
				} else if (sc.ch == '(') {
					sc.ChangeState(SCE_SH_BACKTICKS);
					QuoteStack.Start(sc.ch, BASH_DELIM_COMMAND);
				} else if (sc.ch == '`') {	// $` seen in a configure script, valid?
					sc.ChangeState(SCE_SH_BACKTICKS);
					QuoteStack.Start(sc.ch, BASH_DELIM_BACKTICK);
				} else {
					continue;	// scalar has no delimiter pair
				}
			} else if (sc.Match('<', '<')) {
				sc.SetState(SCE_SH_HERE_DELIM);
				HereDoc.State = 0;
				if (sc.GetRelative(2) == '-') {	// <<- indent case
					HereDoc.Indent = true;
					sc.Forward();
				} else {
					HereDoc.Indent = false;
				}
			} else if (sc.ch == '-'	&&	// one-char file test operators
					   setSingleCharOp.Contains(sc.chNext) &&
					   !setWord.Contains(sc.GetRelative(2)) &&
					   IsASpace(sc.chPrev)) {
				sc.SetState(SCE_SH_WORD);
				sc.Forward();
			} else if (setBashOperator.Contains(sc.ch)) {
				char s[10];
				bool isCmdDelim = false;
				sc.SetState(SCE_SH_OPERATOR);
				// globs have no whitespace, do not appear in arithmetic expressions
				if (cmdState != BASH_CMD_ARITH && sc.ch == '(' && sc.chNext != '(') {
					int i = GlobScan(sc);
					if (i > 1) {
						sc.SetState(SCE_SH_IDENTIFIER);
						sc.Forward(i);
						continue;
					}
				}
				// handle opening delimiters for test/arithmetic expressions - ((,[[,[
				if (cmdState == BASH_CMD_START
				 || cmdState == BASH_CMD_BODY) {
					if (sc.Match('(', '(')) {
						cmdState = BASH_CMD_ARITH;
						sc.Forward();
					} else if (sc.Match('[', '[') && IsASpace(sc.GetRelative(2))) {
						cmdState = BASH_CMD_TEST;
						testExprType = 1;
						sc.Forward();
					} else if (sc.ch == '[' && IsASpace(sc.chNext)) {
						cmdState = BASH_CMD_TEST;
						testExprType = 2;
					}
				}
				// special state -- for ((x;y;z)) in ... looping
				if (cmdState == BASH_CMD_WORD && sc.Match('(', '(')) {
					cmdState = BASH_CMD_ARITH;
					sc.Forward();
					continue;
				}
				// handle command delimiters in command START|BODY|WORD state, also TEST if 'test'
				if (cmdState == BASH_CMD_START
				 || cmdState == BASH_CMD_BODY
				 || cmdState == BASH_CMD_WORD
				 || (cmdState == BASH_CMD_TEST && testExprType == 0)) {
					s[0] = static_cast<char>(sc.ch);
					if (setBashOperator.Contains(sc.chNext)) {
						s[1] = static_cast<char>(sc.chNext);
						s[2] = '\0';
						isCmdDelim = cmdDelimiter.InList(s);
						if (isCmdDelim)
							sc.Forward();
					}
					if (!isCmdDelim) {
						s[1] = '\0';
						isCmdDelim = cmdDelimiter.InList(s);
					}
					if (isCmdDelim) {
						cmdState = BASH_CMD_DELIM;
						continue;
					}
				}
				// handle closing delimiters for test/arithmetic expressions - )),]],]
				if (cmdState == BASH_CMD_ARITH && sc.Match(')', ')')) {
					cmdState = BASH_CMD_BODY;
					sc.Forward();
				} else if (cmdState == BASH_CMD_TEST && IsASpace(sc.chPrev)) {
					if (sc.Match(']', ']') && testExprType == 1) {
						sc.Forward();
						cmdState = BASH_CMD_BODY;
					} else if (sc.ch == ']' && testExprType == 2) {
						cmdState = BASH_CMD_BODY;
					}
				}
			}
		}// sc.state
	}
	sc.Complete();
	if (sc.state == SCE_SH_HERE_Q) {
		styler.ChangeLexerState(sc.currentPos, styler.Length());
	}
	sc.Complete();
}
Exemplo n.º 3
0
static void FoldABAQUSDoc(Sci_PositionU startPos, Sci_Position length, int,
WordList *[], Accessor &styler) {
    Sci_Position startLine = styler.GetLine(startPos) ;
    Sci_Position endLine   = styler.GetLine(startPos+length-1) ;

    // bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
    // We want to deal with all the cases
    // To know the correct indentlevel, we need to look back to the
    // previous command line indentation level
	// order of formatting keyline datalines commentlines
    Sci_Position beginData    = -1 ;
    Sci_Position beginComment = -1 ;
    Sci_Position prvKeyLine   = startLine ;
    Sci_Position prvKeyLineTp =  0 ;

    // Scan until we find the previous keyword line
    // this will give us the level reference that we need
    while ( prvKeyLine > 0 ) {
        prvKeyLine-- ;
        prvKeyLineTp = LineType(prvKeyLine, styler) ;
        if ( prvKeyLineTp & 4 )
            break ;
    }

    // Determine the base line level of all lines following
    // the previous keyword
    // new keyword lines are placed on this level
    //if ( prvKeyLineTp & 4 ) {
    int level = styler.LevelAt(prvKeyLine) & ~SC_FOLDLEVELHEADERFLAG ;
    //}

    // uncomment line below if weird behaviour continues
    prvKeyLine = -1 ;

    // Now start scanning over the lines.
    for ( Sci_Position line = startLine; line <= endLine; line++ ) {
        int lineType = LineType(line, styler) ;

        // Check for comment line
        if ( lineType == 8 ) {
            if ( beginComment < 0 ) {
                beginComment = line ;
			}
        }

        // Check for data line
        if ( (lineType == 1) || (lineType == 3) ) {
            if ( beginData < 0 ) {
                if ( beginComment >= 0 ) {
                    beginData = beginComment ;
                } else {
                    beginData = line ;
                }
            }
			beginComment = -1 ;
		}

        // Check for keywordline.
        // As soon as a keyword line is encountered, we can set the
        // levels of everything from the previous keyword line to this one
        if ( lineType & 4 ) {
            // this is a keyword, we can now place the previous keyword
            // all its data lines and the remainder

            // Write comments and data line
            if ( beginComment < 0 ) {
                beginComment = line ;
			}

            if ( beginData < 0 ) {
                beginData = beginComment ;
				if ( prvKeyLineTp != 5 )
					SafeSetLevel(prvKeyLine, level, styler) ;
				else
					SafeSetLevel(prvKeyLine, level | SC_FOLDLEVELHEADERFLAG, styler) ;
            } else {
                SafeSetLevel(prvKeyLine, level | SC_FOLDLEVELHEADERFLAG, styler) ;
            }

            int datLevel = level + 1 ;
			if ( !(prvKeyLineTp & 4) ) {
				datLevel = level ;
			}

            for ( Sci_Position ll = beginData; ll < beginComment; ll++ )
                SafeSetLevel(ll, datLevel, styler) ;

            // The keyword we just found is going to be written at another level
            // if we have a type 5 and type 6
            if ( prvKeyLineTp == 5 ) {
                level += 1 ;
			}

            if ( prvKeyLineTp == 6 ) {
                level -= 1 ;
				if ( level < 0 ) {
					level = 0 ;
				}
            }

            for ( Sci_Position lll = beginComment; lll < line; lll++ )
                SafeSetLevel(lll, level, styler) ;

            // wrap and reset
            beginComment = -1 ;
            beginData    = -1 ;
            prvKeyLine   = line ;
            prvKeyLineTp = lineType ;
        }

    }

    if ( beginComment < 0 ) {
        beginComment = endLine + 1 ;
    } else {
        // We need to find out whether this comment block is followed by
        // a data line or a keyword line
        const Sci_Position docLines = styler.GetLine(styler.Length() - 1);

        for ( Sci_Position line = endLine + 1; line <= docLines; line++ ) {
            Sci_Position lineType = LineType(line, styler) ;

            if ( lineType != 8 ) {
				if ( !(lineType & 4) )  {
					beginComment = endLine + 1 ;
				}
                break ;
			}
        }
    }

    if ( beginData < 0 ) {
        beginData = beginComment ;
		if ( prvKeyLineTp != 5 )
			SafeSetLevel(prvKeyLine, level, styler) ;
		else
			SafeSetLevel(prvKeyLine, level | SC_FOLDLEVELHEADERFLAG, styler) ;
    } else {
        SafeSetLevel(prvKeyLine, level | SC_FOLDLEVELHEADERFLAG, styler) ;
    }

    int datLevel = level + 1 ;
	if ( !(prvKeyLineTp & 4) ) {
		datLevel = level ;
	}

    for ( Sci_Position ll = beginData; ll < beginComment; ll++ )
        SafeSetLevel(ll, datLevel, styler) ;

    if ( prvKeyLineTp == 5 ) {
        level += 1 ;
    }

    if ( prvKeyLineTp == 6 ) {
        level -= 1 ;
    }
    for ( Sci_Position m = beginComment; m <= endLine; m++ )
        SafeSetLevel(m, level, styler) ;
}
Exemplo n.º 4
0
// Store both the current line's fold level and the next lines in the
// level store to make it easy to pick up with each increment
// and to make it possible to fiddle the current level for "} else {".
static void FoldEclDoc(unsigned int startPos, int length, int initStyle,
             WordList *[], Accessor &styler) {
  bool foldComment = true;
  bool foldPreprocessor = true;
  bool foldCompact = true;
  bool foldAtElse = true;
  unsigned int endPos = startPos + length;
  int visibleChars = 0;
  int lineCurrent = styler.GetLine(startPos);
  int levelCurrent = SC_FOLDLEVELBASE;
  if (lineCurrent > 0)
    levelCurrent = styler.LevelAt(lineCurrent-1) >> 16;
  int levelMinCurrent = levelCurrent;
  int levelNext = levelCurrent;
  char chNext = styler[startPos];
  int styleNext = styler.StyleAt(startPos);
  int style = initStyle;
  for (unsigned int i = startPos; i < endPos; i++) {
    char ch = chNext;
    chNext = styler.SafeGetCharAt(i + 1);
    int stylePrev = style;
    style = styleNext;
    styleNext = styler.StyleAt(i + 1);
    bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
    if (foldComment && IsStreamCommentStyle(style)) {
      if (!IsStreamCommentStyle(stylePrev) && (stylePrev != SCE_ECL_COMMENTLINEDOC)) {
        levelNext++;
      } else if (!IsStreamCommentStyle(styleNext) && (styleNext != SCE_ECL_COMMENTLINEDOC) && !atEOL) {
        // Comments don't end at end of line and the next character may be unstyled.
        levelNext--;
      }
    }
    if (foldComment && (style == SCE_ECL_COMMENTLINE)) {
      if ((ch == '/') && (chNext == '/')) {
        char chNext2 = styler.SafeGetCharAt(i + 2);
        if (chNext2 == '{') {
          levelNext++;
        } else if (chNext2 == '}') {
          levelNext--;
        }
      }
    }
    if (foldPreprocessor && (style == SCE_ECL_PREPROCESSOR)) {
      if (ch == '#') {
        unsigned int j = i + 1;
        while ((j < endPos) && IsASpaceOrTab(styler.SafeGetCharAt(j))) {
          j++;
        }
        if (MatchNoCase(styler, j, "region") || MatchNoCase(styler, j, "if")) {
          levelNext++;
        } else if (MatchNoCase(styler, j, "endregion") || MatchNoCase(styler, j, "end")) {
          levelNext--;
        }
      }
    }
    if (style == SCE_ECL_OPERATOR) {
      if (ch == '{') {
        // Measure the minimum before a '{' to allow
        // folding on "} else {"
        if (levelMinCurrent > levelNext) {
          levelMinCurrent = levelNext;
        }
        levelNext++;
      } else if (ch == '}') {
        levelNext--;
      }
    }
    if (style == SCE_ECL_WORD2) {
      if (MatchNoCase(styler, i, "record") || MatchNoCase(styler, i, "transform") || MatchNoCase(styler, i, "type") || MatchNoCase(styler, i, "function") ||
        MatchNoCase(styler, i, "module") || MatchNoCase(styler, i, "service") || MatchNoCase(styler, i, "interface") || MatchNoCase(styler, i, "ifblock") ||
        MatchNoCase(styler, i, "macro") || MatchNoCase(styler, i, "beginc++")) {
        levelNext++;
      } else if (MatchNoCase(styler, i, "endmacro") || MatchNoCase(styler, i, "endc++") || MatchNoCase(styler, i, "end")) {
        levelNext--;
      }
    }
    if (atEOL || (i == endPos-1)) {
      int levelUse = levelCurrent;
      if (foldAtElse) {
        levelUse = levelMinCurrent;
      }
      int lev = levelUse | levelNext << 16;
      if (visibleChars == 0 && foldCompact)
        lev |= SC_FOLDLEVELWHITEFLAG;
      if (levelUse < levelNext)
        lev |= SC_FOLDLEVELHEADERFLAG;
      if (lev != styler.LevelAt(lineCurrent)) {
        styler.SetLevel(lineCurrent, lev);
      }
      lineCurrent++;
      levelCurrent = levelNext;
      levelMinCurrent = levelCurrent;
      if (atEOL && (i == static_cast<unsigned int>(styler.Length()-1))) {
        // There is an empty line at end of file so give it same level and empty
        styler.SetLevel(lineCurrent, (levelCurrent | levelCurrent << 16) | SC_FOLDLEVELWHITEFLAG);
      }
      visibleChars = 0;
    }
    if (!IsASpace(ch))
      visibleChars++;
  }
}
Exemplo n.º 5
0
static void FoldPyDoc(unsigned int startPos, int length, int /*initStyle - unused*/,
                      WordList *[], Accessor &styler) {
	const int maxPos = startPos + length;
	const int maxLines = (maxPos == styler.Length()) ? styler.GetLine(maxPos) : styler.GetLine(maxPos - 1);	// Requested last line
	const int docLines = styler.GetLine(styler.Length());	// Available last line

	// property fold.comment.python
	//	This option enables folding multi-line comments when using the Python lexer.
	const bool foldComment = styler.GetPropertyInt("fold.comment.python") != 0;

	// property fold.quotes.python
	//	This option enables folding multi-line quoted strings when using the Python lexer.
	const bool foldQuotes = styler.GetPropertyInt("fold.quotes.python") != 0;

	const bool foldCompact = styler.GetPropertyInt("fold.compact") != 0;

	// Backtrack to previous non-blank line so we can determine indent level
	// for any white space lines (needed esp. within triple quoted strings)
	// and so we can fix any preceding fold level (which is why we go back
	// at least one line in all cases)
	int spaceFlags = 0;
	int lineCurrent = styler.GetLine(startPos);
	int indentCurrent = styler.IndentAmount(lineCurrent, &spaceFlags, NULL);
	while (lineCurrent > 0) {
		lineCurrent--;
		indentCurrent = styler.IndentAmount(lineCurrent, &spaceFlags, NULL);
		if (!(indentCurrent & SC_FOLDLEVELWHITEFLAG) &&
		        (!IsCommentLine(lineCurrent, styler)) &&
		        (!IsQuoteLine(lineCurrent, styler)))
			break;
	}
	int indentCurrentLevel = indentCurrent & SC_FOLDLEVELNUMBERMASK;

	// Set up initial loop state
	startPos = styler.LineStart(lineCurrent);
	int prev_state = SCE_P_DEFAULT & 31;
	if (lineCurrent >= 1)
		prev_state = styler.StyleAt(startPos - 1) & 31;
	int prevQuote = foldQuotes && ((prev_state == SCE_P_TRIPLE) || (prev_state == SCE_P_TRIPLEDOUBLE));
	int prevComment = 0;
	if (lineCurrent >= 1)
		prevComment = foldComment && IsCommentLine(lineCurrent - 1, styler);

	// Process all characters to end of requested range or end of any triple quote
	// or comment that hangs over the end of the range.  Cap processing in all cases
	// to end of document (in case of unclosed quote or comment at end).
	while ((lineCurrent <= docLines) && ((lineCurrent <= maxLines) || prevQuote || prevComment)) {

		// Gather info
		int lev = indentCurrent;
		int lineNext = lineCurrent + 1;
		int indentNext = indentCurrent;
		int quote = false;
		if (lineNext <= docLines) {
			// Information about next line is only available if not at end of document
			indentNext = styler.IndentAmount(lineNext, &spaceFlags, NULL);
			int lookAtPos = (styler.LineStart(lineNext) == styler.Length()) ? styler.Length() - 1 : styler.LineStart(lineNext);
			int style = styler.StyleAt(lookAtPos) & 31;
			quote = foldQuotes && ((style == SCE_P_TRIPLE) || (style == SCE_P_TRIPLEDOUBLE));
		}
		const int quote_start = (quote && !prevQuote);
		const int quote_continue = (quote && prevQuote);
		const int comment = foldComment && IsCommentLine(lineCurrent, styler);
		const int comment_start = (comment && !prevComment && (lineNext <= docLines) &&
		                           IsCommentLine(lineNext, styler) && (lev > SC_FOLDLEVELBASE));
		const int comment_continue = (comment && prevComment);
		if ((!quote || !prevQuote) && !comment)
			indentCurrentLevel = indentCurrent & SC_FOLDLEVELNUMBERMASK;
		if (quote)
			indentNext = indentCurrentLevel;
		if (indentNext & SC_FOLDLEVELWHITEFLAG)
			indentNext = SC_FOLDLEVELWHITEFLAG | indentCurrentLevel;

		if (quote_start) {
			// Place fold point at start of triple quoted string
			lev |= SC_FOLDLEVELHEADERFLAG;
		} else if (quote_continue || prevQuote) {
			// Add level to rest of lines in the string
			lev = lev + 1;
		} else if (comment_start) {
			// Place fold point at start of a block of comments
			lev |= SC_FOLDLEVELHEADERFLAG;
		} else if (comment_continue) {
			// Add level to rest of lines in the block
			lev = lev + 1;
		}

		// Skip past any blank lines for next indent level info; we skip also
		// comments (all comments, not just those starting in column 0)
		// which effectively folds them into surrounding code rather
		// than screwing up folding.

		while (!quote &&
		        (lineNext < docLines) &&
		        ((indentNext & SC_FOLDLEVELWHITEFLAG) ||
		         (lineNext <= docLines && IsCommentLine(lineNext, styler)))) {

			lineNext++;
			indentNext = styler.IndentAmount(lineNext, &spaceFlags, NULL);
		}

		const int levelAfterComments = indentNext & SC_FOLDLEVELNUMBERMASK;
		const int levelBeforeComments = Maximum(indentCurrentLevel,levelAfterComments);

		// Now set all the indent levels on the lines we skipped
		// Do this from end to start.  Once we encounter one line
		// which is indented more than the line after the end of
		// the comment-block, use the level of the block before

		int skipLine = lineNext;
		int skipLevel = levelAfterComments;

		while (--skipLine > lineCurrent) {
			int skipLineIndent = styler.IndentAmount(skipLine, &spaceFlags, NULL);

			if (foldCompact) {
				if ((skipLineIndent & SC_FOLDLEVELNUMBERMASK) > levelAfterComments)
					skipLevel = levelBeforeComments;

				int whiteFlag = skipLineIndent & SC_FOLDLEVELWHITEFLAG;

				styler.SetLevel(skipLine, skipLevel | whiteFlag);
			} else {
				if ((skipLineIndent & SC_FOLDLEVELNUMBERMASK) > levelAfterComments &&
					!(skipLineIndent & SC_FOLDLEVELWHITEFLAG) &&
					!IsCommentLine(skipLine, styler))
					skipLevel = levelBeforeComments;

				styler.SetLevel(skipLine, skipLevel);
			}
		}

		// Set fold header on non-quote/non-comment line
		if (!quote && !comment && !(indentCurrent & SC_FOLDLEVELWHITEFLAG)) {
			if ((indentCurrent & SC_FOLDLEVELNUMBERMASK) < (indentNext & SC_FOLDLEVELNUMBERMASK))
				lev |= SC_FOLDLEVELHEADERFLAG;
		}

		// Keep track of triple quote and block comment state of previous line
		prevQuote = quote;
		prevComment = comment_start || comment_continue;

		// Set fold level for this line and move to next line
		styler.SetLevel(lineCurrent, foldCompact ? lev : lev & ~SC_FOLDLEVELWHITEFLAG);
		indentCurrent = indentNext;
		lineCurrent = lineNext;
	}

	// NOTE: Cannot set level of last line here because indentCurrent doesn't have
	// header flag set; the loop above is crafted to take care of this case!
	//styler.SetLevel(lineCurrent, indentCurrent);
}