[wxWidgets.git] / src / stc / scintilla / lexers / LexTACL.cxx

// Scintilla source code edit control
/** @file LexTAL.cxx
 ** Lexer for TAL
 ** Based on LexPascal.cxx
 ** Written by Laurent le Tynevez
 ** Updated by Simon Steele <s.steele@pnotepad.org> September 2002
 ** Updated by Mathias Rauen <scite@madshi.net> May 2003 (Delphi adjustments)
 ** Updated by Rod Falck, Aug 2006 Converted to TACL
 **/

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#include <assert.h>
#include <ctype.h>

#include "ILexer.h"
#include "Scintilla.h"
#include "SciLexer.h"

#include "WordList.h"
#include "LexAccessor.h"
#include "Accessor.h"
#include "StyleContext.h"
#include "CharacterSet.h"
#include "LexerModule.h"

#ifdef SCI_NAMESPACE
using namespace Scintilla;
#endif

inline bool isTACLoperator(char ch)
	{
	return ch == '\'' || isoperator(ch);
	}

inline bool isTACLwordchar(char ch)
	{
	return ch == '#' || ch == '^' || ch == '|' || ch == '_' || iswordchar(ch);
	}

inline bool isTACLwordstart(char ch)
	{
	return ch == '#' || ch == '|' || ch == '_' || iswordstart(ch);
	}

static void getRange(unsigned int start,
		unsigned int end,
		Accessor &styler,
		char *s,
		unsigned int len) {
	unsigned int i = 0;
	while ((i < end - start + 1) && (i < len-1)) {
		s[i] = static_cast<char>(tolower(styler[start + i]));
		i++;
	}
	s[i] = '\0';
}

static bool IsStreamCommentStyle(int style) {
	return style == SCE_C_COMMENT ||
		style == SCE_C_COMMENTDOC ||
		style == SCE_C_COMMENTDOCKEYWORD ||
		style == SCE_C_COMMENTDOCKEYWORDERROR;
}

static void ColourTo(Accessor &styler, unsigned int end, unsigned int attr, bool bInAsm) {
	if ((bInAsm) && (attr == SCE_C_OPERATOR || attr == SCE_C_NUMBER || attr == SCE_C_DEFAULT || attr == SCE_C_WORD || attr == SCE_C_IDENTIFIER)) {
		styler.ColourTo(end, SCE_C_REGEX);
	} else
		styler.ColourTo(end, attr);
}

// returns 1 if the item starts a class definition, and -1 if the word is "end", and 2 if the word is "asm"
static int classifyWordTACL(unsigned int start, unsigned int end, /*WordList &keywords*/WordList *keywordlists[], Accessor &styler, bool bInAsm) {
	int ret = 0;

	WordList& keywords = *keywordlists[0];
	WordList& builtins = *keywordlists[1];
	WordList& commands = *keywordlists[2];

	char s[100];
	getRange(start, end, styler, s, sizeof(s));

	char chAttr = SCE_C_IDENTIFIER;
	if (isdigit(s[0]) || (s[0] == '.')) {
		chAttr = SCE_C_NUMBER;
	}
	else {
		if (s[0] == '#' || keywords.InList(s)) {
			chAttr = SCE_C_WORD;

			if (strcmp(s, "asm") == 0) {
				ret = 2;
			}
			else if (strcmp(s, "end") == 0) {
				ret = -1;
			}
		}
		else if (s[0] == '|' || builtins.InList(s)) {
			chAttr = SCE_C_WORD2;
		}
		else if (commands.InList(s)) {
			chAttr = SCE_C_UUID;
		}
		else if (strcmp(s, "comment") == 0) {
			chAttr = SCE_C_COMMENTLINE;
			ret = 3;
		}
	}
	ColourTo(styler, end, chAttr, (bInAsm && ret != -1));
	return ret;
}

static int classifyFoldPointTACL(const char* s) {
	int lev = 0;
	if (s[0] == '[')
		lev=1;
	else if (s[0] == ']')
		lev=-1;
	return lev;
}

static void ColouriseTACLDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
	Accessor &styler) {

	styler.StartAt(startPos);

	int state = initStyle;
	if (state == SCE_C_CHARACTER)	// Does not leak onto next line
		state = SCE_C_DEFAULT;
	char chPrev = ' ';
	char chNext = styler[startPos];
	unsigned int lengthDoc = startPos + length;

	bool bInClassDefinition;

	int currentLine = styler.GetLine(startPos);
	if (currentLine > 0) {
		styler.SetLineState(currentLine, styler.GetLineState(currentLine-1));
		bInClassDefinition = (styler.GetLineState(currentLine) == 1);
	} else {
		styler.SetLineState(currentLine, 0);
		bInClassDefinition = false;
	}

	bool bInAsm = (state == SCE_C_REGEX);
	if (bInAsm)
		state = SCE_C_DEFAULT;

	styler.StartSegment(startPos);
	int visibleChars = 0;
	unsigned int i;
	for (i = startPos; i < lengthDoc; i++) {
		char ch = chNext;

		chNext = styler.SafeGetCharAt(i + 1);

		if ((ch == '\r' && chNext != '\n') || (ch == '\n')) {
			// Trigger on CR only (Mac style) or either on LF from CR+LF (Dos/Win) or on LF alone (Unix)
			// Avoid triggering two times on Dos/Win
			// End of line
			if (state == SCE_C_CHARACTER) {
				ColourTo(styler, i, state, bInAsm);
				state = SCE_C_DEFAULT;
			}
			visibleChars = 0;
			currentLine++;
			styler.SetLineState(currentLine, (bInClassDefinition ? 1 : 0));
		}

		if (styler.IsLeadByte(ch)) {
			chNext = styler.SafeGetCharAt(i + 2);
			chPrev = ' ';
			i += 1;
			continue;
		}

		if (state == SCE_C_DEFAULT) {
			if (isTACLwordstart(ch)) {
				ColourTo(styler, i-1, state, bInAsm);
				state = SCE_C_IDENTIFIER;
			} else if (ch == '{') {
				ColourTo(styler, i-1, state, bInAsm);
				state = SCE_C_COMMENT;
			} else if (ch == '{' && chNext == '*') {
				ColourTo(styler, i-1, state, bInAsm);
				state = SCE_C_COMMENTDOC;
			} else if (ch == '=' && chNext == '=') {
				ColourTo(styler, i-1, state, bInAsm);
				state = SCE_C_COMMENTLINE;
			} else if (ch == '"') {
				ColourTo(styler, i-1, state, bInAsm);
				state = SCE_C_STRING;
			} else if (ch == '?' && visibleChars == 0) {
				ColourTo(styler, i-1, state, bInAsm);
				state = SCE_C_PREPROCESSOR;
			} else if (isTACLoperator(ch)) {
				ColourTo(styler, i-1, state, bInAsm);
				ColourTo(styler, i, SCE_C_OPERATOR, bInAsm);
			}
		} else if (state == SCE_C_IDENTIFIER) {
			if (!isTACLwordchar(ch)) {
				int lStateChange = classifyWordTACL(styler.GetStartSegment(), i - 1, keywordlists, styler, bInAsm);

				if(lStateChange == 1) {
					styler.SetLineState(currentLine, 1);
					bInClassDefinition = true;
				} else if(lStateChange == 2) {
					bInAsm = true;
				} else if(lStateChange == -1) {
					styler.SetLineState(currentLine, 0);
					bInClassDefinition = false;
					bInAsm = false;
				}

				if (lStateChange == 3) {
					 state = SCE_C_COMMENTLINE;
				}
				else {
					state = SCE_C_DEFAULT;
					chNext = styler.SafeGetCharAt(i + 1);
					if (ch == '{') {
						state = SCE_C_COMMENT;
					} else if (ch == '{' && chNext == '*') {
						ColourTo(styler, i-1, state, bInAsm);
						state = SCE_C_COMMENTDOC;
					} else if (ch == '=' && chNext == '=') {
						state = SCE_C_COMMENTLINE;
					} else if (ch == '"') {
						state = SCE_C_STRING;
					} else if (isTACLoperator(ch)) {
						ColourTo(styler, i, SCE_C_OPERATOR, bInAsm);
					}
				}
			}
		} else {
			if (state == SCE_C_PREPROCESSOR) {
				if ((ch == '\r' || ch == '\n') && !(chPrev == '\\' || chPrev == '\r')) {
					ColourTo(styler, i-1, state, bInAsm);
					state = SCE_C_DEFAULT;
				}
			} else if (state == SCE_C_COMMENT) {
				if (ch == '}' || (ch == '\r' || ch == '\n') ) {
					ColourTo(styler, i, state, bInAsm);
					state = SCE_C_DEFAULT;
				}
			} else if (state == SCE_C_COMMENTDOC) {
				if (ch == '}' || (ch == '\r' || ch == '\n')) {
					if (((i > styler.GetStartSegment() + 2) || (
						(initStyle == SCE_C_COMMENTDOC) &&
						(styler.GetStartSegment() == static_cast<unsigned int>(startPos))))) {
							ColourTo(styler, i, state, bInAsm);
							state = SCE_C_DEFAULT;
					}
				}
			} else if (state == SCE_C_COMMENTLINE) {
				if (ch == '\r' || ch == '\n') {
					ColourTo(styler, i-1, state, bInAsm);
					state = SCE_C_DEFAULT;
				}
			} else if (state == SCE_C_STRING) {
				if (ch == '"' || ch == '\r' || ch == '\n') {
					ColourTo(styler, i, state, bInAsm);
					state = SCE_C_DEFAULT;
				}
			}
		}
        if (!isspacechar(ch))
            visibleChars++;
		chPrev = ch;
	}

	// Process to end of document
	if (state == SCE_C_IDENTIFIER) {
		classifyWordTACL(styler.GetStartSegment(), i - 1, keywordlists, styler, bInAsm);
		}
	else
		ColourTo(styler, lengthDoc - 1, state, bInAsm);
}

static void FoldTACLDoc(unsigned int startPos, int length, int initStyle, WordList *[],
                            Accessor &styler) {
	bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
	bool foldPreprocessor = styler.GetPropertyInt("fold.preprocessor") != 0;
	bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
	unsigned int endPos = startPos + length;
	int visibleChars = 0;
	int lineCurrent = styler.GetLine(startPos);
	int levelPrev = styler.LevelAt(lineCurrent) & SC_FOLDLEVELNUMBERMASK;
	int levelCurrent = levelPrev;
	char chNext = styler[startPos];
	int styleNext = styler.StyleAt(startPos);
	int style = initStyle;
	bool section = false;

	int lastStart = 0;

	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 (stylePrev == SCE_C_DEFAULT && (style == SCE_C_WORD || style == SCE_C_PREPROCESSOR))
		{
			// Store last word start point.
			lastStart = i;
		}

		if (stylePrev == SCE_C_WORD || stylePrev == SCE_C_PREPROCESSOR) {
			if(isTACLwordchar(ch) && !isTACLwordchar(chNext)) {
				char s[100];
				getRange(lastStart, i, styler, s, sizeof(s));
				if (stylePrev == SCE_C_PREPROCESSOR && strcmp(s, "?section") == 0)
					{
					section = true;
					levelCurrent = 1;
					levelPrev = 0;
					}
				else if (stylePrev == SCE_C_WORD)
					levelCurrent += classifyFoldPointTACL(s);
			}
		}

		if (style == SCE_C_OPERATOR) {
			if (ch == '[') {
				levelCurrent++;
			} else if (ch == ']') {
				levelCurrent--;
			}
		}
		if (foldComment && (style == SCE_C_COMMENTLINE)) {
			if ((ch == '/') && (chNext == '/')) {
				char chNext2 = styler.SafeGetCharAt(i + 2);
				if (chNext2 == '{') {
					levelCurrent++;
				} else if (chNext2 == '}') {
					levelCurrent--;
				}
			}
		}

		if (foldPreprocessor && (style == SCE_C_PREPROCESSOR)) {
			if (ch == '{' && chNext == '$') {
				unsigned int j=i+2; // skip {$
				while ((j<endPos) && IsASpaceOrTab(styler.SafeGetCharAt(j))) {
					j++;
				}
				if (styler.Match(j, "region") || styler.Match(j, "if")) {
					levelCurrent++;
				} else if (styler.Match(j, "end")) {
					levelCurrent--;
				}
			}
		}

		if (foldComment && IsStreamCommentStyle(style)) {
			if (!IsStreamCommentStyle(stylePrev)) {
				levelCurrent++;
			} else if (!IsStreamCommentStyle(styleNext) && !atEOL) {
				// Comments don't end at end of line and the next character may be unstyled.
				levelCurrent--;
			}
		}
		if (atEOL) {
			int lev = levelPrev | SC_FOLDLEVELBASE;
			if (visibleChars == 0 && foldCompact)
				lev |= SC_FOLDLEVELWHITEFLAG;
			if ((levelCurrent > levelPrev || section) && (visibleChars > 0))
				lev |= SC_FOLDLEVELHEADERFLAG;
			if (lev != styler.LevelAt(lineCurrent)) {
				styler.SetLevel(lineCurrent, lev);
			}
			lineCurrent++;
			levelPrev = levelCurrent;
			visibleChars = 0;
			section = false;
		}

		if (!isspacechar(ch))
			visibleChars++;
	}

	// Fill in the real level of the next line, keeping the current flags as they will be filled in later
	int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK;
	styler.SetLevel(lineCurrent, levelPrev | flagsNext);
}

static const char * const TACLWordListDesc[] = {
	"Builtins",
	"Labels",
	"Commands",
	0
};

LexerModule lmTACL(SCLEX_TACL, ColouriseTACLDoc, "TACL", FoldTACLDoc, TACLWordListDesc);
Commit	Line	Data
9e96e16f RD	1	// Scintilla source code edit control
	2	/** @file LexTAL.cxx
	3	** Lexer for TAL
	4	** Based on LexPascal.cxx
	5	** Written by Laurent le Tynevez
	6	** Updated by Simon Steele <s.steele@pnotepad.org> September 2002
	7	** Updated by Mathias Rauen <scite@madshi.net> May 2003 (Delphi adjustments)
	8	** Updated by Rod Falck, Aug 2006 Converted to TACL
	9	**/
	10
	11	#include <stdlib.h>
	12	#include <string.h>
9e96e16f RD	13	#include <stdio.h>
9e96e16f RD	14	#include <stdarg.h>
1dcf666d RD	15	#include <assert.h>
1dcf666d RD	16	#include <ctype.h>
9e96e16f	17
1dcf666d	18	#include "ILexer.h"
9e96e16f RD	19	#include "Scintilla.h"
9e96e16f RD	20	#include "SciLexer.h"
1dcf666d RD	21
	22	#include "WordList.h"
	23	#include "LexAccessor.h"
	24	#include "Accessor.h"
9e96e16f	25	#include "StyleContext.h"
1dcf666d RD	26	#include "CharacterSet.h"
1dcf666d RD	27	#include "LexerModule.h"
9e96e16f RD	28
	29	#ifdef SCI_NAMESPACE
	30	using namespace Scintilla;
	31	#endif
	32
	33	inline bool isTACLoperator(char ch)
	34	{
	35	return ch == '\'' \|\| isoperator(ch);
	36	}
	37
	38	inline bool isTACLwordchar(char ch)
	39	{
	40	return ch == '#' \|\| ch == '^' \|\| ch == '\|' \|\| ch == '_' \|\| iswordchar(ch);
	41	}
	42
	43	inline bool isTACLwordstart(char ch)
	44	{
	45	return ch == '#' \|\| ch == '\|' \|\| ch == '_' \|\| iswordstart(ch);
	46	}
	47
	48	static void getRange(unsigned int start,
	49	unsigned int end,
	50	Accessor &styler,
	51	char *s,
	52	unsigned int len) {
	53	unsigned int i = 0;
	54	while ((i < end - start + 1) && (i < len-1)) {
	55	s[i] = static_cast<char>(tolower(styler[start + i]));
	56	i++;
	57	}
	58	s[i] = '\0';
	59	}
	60
	61	static bool IsStreamCommentStyle(int style) {
	62	return style == SCE_C_COMMENT \|\|
	63	style == SCE_C_COMMENTDOC \|\|
	64	style == SCE_C_COMMENTDOCKEYWORD \|\|
	65	style == SCE_C_COMMENTDOCKEYWORDERROR;
	66	}
	67
	68	static void ColourTo(Accessor &styler, unsigned int end, unsigned int attr, bool bInAsm) {
	69	if ((bInAsm) && (attr == SCE_C_OPERATOR \|\| attr == SCE_C_NUMBER \|\| attr == SCE_C_DEFAULT \|\| attr == SCE_C_WORD \|\| attr == SCE_C_IDENTIFIER)) {
	70	styler.ColourTo(end, SCE_C_REGEX);
	71	} else
	72	styler.ColourTo(end, attr);
	73	}
	74
	75	// returns 1 if the item starts a class definition, and -1 if the word is "end", and 2 if the word is "asm"
	76	static int classifyWordTACL(unsigned int start, unsigned int end, /WordList &keywords/WordList *keywordlists[], Accessor &styler, bool bInAsm) {
	77	int ret = 0;
	78
	79	WordList& keywords = *keywordlists[0];
	80	WordList& builtins = *keywordlists[1];
	81	WordList& commands = *keywordlists[2];
	82
	83	char s[100];
	84	getRange(start, end, styler, s, sizeof(s));
	85
	86	char chAttr = SCE_C_IDENTIFIER;
	87	if (isdigit(s[0]) \|\| (s[0] == '.')) {
	88	chAttr = SCE_C_NUMBER;
	89	}
	90	else {
	91	if (s[0] == '#' \|\| keywords.InList(s)) {
92	chAttr = SCE_C_WORD;
93
94	if (strcmp(s, "asm") == 0) {
95	ret = 2;
96	}
97	else if (strcmp(s, "end") == 0) {
98	ret = -1;
99	}
100	}
101	else if (s[0] == '\|' \|\| builtins.InList(s)) {
102	chAttr = SCE_C_WORD2;
103	}
104	else if (commands.InList(s)) {
105	chAttr = SCE_C_UUID;
106	}
107	else if (strcmp(s, "comment") == 0) {
108	chAttr = SCE_C_COMMENTLINE;
109	ret = 3;
110	}
111	}
112	ColourTo(styler, end, chAttr, (bInAsm && ret != -1));
113	return ret;
114	}
115
116	static int classifyFoldPointTACL(const char* s) {
117	int lev = 0;
118	if (s[0] == '[')
119	lev=1;
120	else if (s[0] == ']')
121	lev=-1;
122	return lev;
123	}
124
125	static void ColouriseTACLDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
126	Accessor &styler) {
127
128	styler.StartAt(startPos);
129
130	int state = initStyle;
131	if (state == SCE_C_CHARACTER) // Does not leak onto next line
132	state = SCE_C_DEFAULT;
133	char chPrev = ' ';
134	char chNext = styler[startPos];
135	unsigned int lengthDoc = startPos + length;
136
137	bool bInClassDefinition;
138
139	int currentLine = styler.GetLine(startPos);
140	if (currentLine > 0) {
141	styler.SetLineState(currentLine, styler.GetLineState(currentLine-1));
142	bInClassDefinition = (styler.GetLineState(currentLine) == 1);
143	} else {
144	styler.SetLineState(currentLine, 0);
145	bInClassDefinition = false;
146	}
147
148	bool bInAsm = (state == SCE_C_REGEX);
149	if (bInAsm)
150	state = SCE_C_DEFAULT;
151
152	styler.StartSegment(startPos);
153	int visibleChars = 0;
154	unsigned int i;
155	for (i = startPos; i < lengthDoc; i++) {
156	char ch = chNext;
157
158	chNext = styler.SafeGetCharAt(i + 1);
159
160	if ((ch == '\r' && chNext != '\n') \|\| (ch == '\n')) {
161	// Trigger on CR only (Mac style) or either on LF from CR+LF (Dos/Win) or on LF alone (Unix)
162	// Avoid triggering two times on Dos/Win
163	// End of line
164	if (state == SCE_C_CHARACTER) {
165	ColourTo(styler, i, state, bInAsm);
166	state = SCE_C_DEFAULT;
167	}
168	visibleChars = 0;
169	currentLine++;
170	styler.SetLineState(currentLine, (bInClassDefinition ? 1 : 0));
171	}
172
173	if (styler.IsLeadByte(ch)) {
174	chNext = styler.SafeGetCharAt(i + 2);
175	chPrev = ' ';
176	i += 1;
177	continue;
178	}
179
180	if (state == SCE_C_DEFAULT) {
181	if (isTACLwordstart(ch)) {
182	ColourTo(styler, i-1, state, bInAsm);
183	state = SCE_C_IDENTIFIER;
184	} else if (ch == '{') {
185	ColourTo(styler, i-1, state, bInAsm);
186	state = SCE_C_COMMENT;
187	} else if (ch == '{' && chNext == '*') {
188	ColourTo(styler, i-1, state, bInAsm);
189	state = SCE_C_COMMENTDOC;
190	} else if (ch == '=' && chNext == '=') {
191	ColourTo(styler, i-1, state, bInAsm);
192	state = SCE_C_COMMENTLINE;
193	} else if (ch == '"') {
194	ColourTo(styler, i-1, state, bInAsm);
195	state = SCE_C_STRING;
196	} else if (ch == '?' && visibleChars == 0) {
197	ColourTo(styler, i-1, state, bInAsm);
198	state = SCE_C_PREPROCESSOR;
199	} else if (isTACLoperator(ch)) {
200	ColourTo(styler, i-1, state, bInAsm);
201	ColourTo(styler, i, SCE_C_OPERATOR, bInAsm);
202	}
203	} else if (state == SCE_C_IDENTIFIER) {
204	if (!isTACLwordchar(ch)) {
205	int lStateChange = classifyWordTACL(styler.GetStartSegment(), i - 1, keywordlists, styler, bInAsm);
206
207	if(lStateChange == 1) {
208	styler.SetLineState(currentLine, 1);
209	bInClassDefinition = true;
210	} else if(lStateChange == 2) {
211	bInAsm = true;
212	} else if(lStateChange == -1) {
213	styler.SetLineState(currentLine, 0);
214	bInClassDefinition = false;
215	bInAsm = false;
216	}
217
218	if (lStateChange == 3) {
219	state = SCE_C_COMMENTLINE;
220	}
221	else {
222	state = SCE_C_DEFAULT;
223	chNext = styler.SafeGetCharAt(i + 1);
224	if (ch == '{') {
225	state = SCE_C_COMMENT;
226	} else if (ch == '{' && chNext == '*') {
227	ColourTo(styler, i-1, state, bInAsm);
228	state = SCE_C_COMMENTDOC;
229	} else if (ch == '=' && chNext == '=') {
230	state = SCE_C_COMMENTLINE;
231	} else if (ch == '"') {
232	state = SCE_C_STRING;
233	} else if (isTACLoperator(ch)) {
234	ColourTo(styler, i, SCE_C_OPERATOR, bInAsm);
235	}
236	}
237	}
238	} else {
239	if (state == SCE_C_PREPROCESSOR) {
240	if ((ch == '\r' \|\| ch == '\n') && !(chPrev == '\\' \|\| chPrev == '\r')) {
241	ColourTo(styler, i-1, state, bInAsm);
242	state = SCE_C_DEFAULT;
243	}
244	} else if (state == SCE_C_COMMENT) {
245	if (ch == '}' \|\| (ch == '\r' \|\| ch == '\n') ) {
246	ColourTo(styler, i, state, bInAsm);
247	state = SCE_C_DEFAULT;
248	}
249	} else if (state == SCE_C_COMMENTDOC) {
250	if (ch == '}' \|\| (ch == '\r' \|\| ch == '\n')) {
251	if (((i > styler.GetStartSegment() + 2) \|\| (
252	(initStyle == SCE_C_COMMENTDOC) &&
253	(styler.GetStartSegment() == static_cast<unsigned int>(startPos))))) {
254	ColourTo(styler, i, state, bInAsm);
255	state = SCE_C_DEFAULT;
256	}
257	}
258	} else if (state == SCE_C_COMMENTLINE) {
259	if (ch == '\r' \|\| ch == '\n') {
260	ColourTo(styler, i-1, state, bInAsm);
261	state = SCE_C_DEFAULT;
262	}
263	} else if (state == SCE_C_STRING) {
264	if (ch == '"' \|\| ch == '\r' \|\| ch == '\n') {
265	ColourTo(styler, i, state, bInAsm);
266	state = SCE_C_DEFAULT;
267	}
268	}
269	}
270	if (!isspacechar(ch))
271	visibleChars++;
272	chPrev = ch;
273	}
274
275	// Process to end of document
276	if (state == SCE_C_IDENTIFIER) {
277	classifyWordTACL(styler.GetStartSegment(), i - 1, keywordlists, styler, bInAsm);
278	}
279	else
280	ColourTo(styler, lengthDoc - 1, state, bInAsm);
281	}
282
283	static void FoldTACLDoc(unsigned int startPos, int length, int initStyle, WordList *[],
284	Accessor &styler) {
285	bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
286	bool foldPreprocessor = styler.GetPropertyInt("fold.preprocessor") != 0;
287	bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
288	unsigned int endPos = startPos + length;
289	int visibleChars = 0;
290	int lineCurrent = styler.GetLine(startPos);
291	int levelPrev = styler.LevelAt(lineCurrent) & SC_FOLDLEVELNUMBERMASK;
292	int levelCurrent = levelPrev;
293	char chNext = styler[startPos];
294	int styleNext = styler.StyleAt(startPos);
295	int style = initStyle;
296	bool section = false;
297
298	int lastStart = 0;
299
300	for (unsigned int i = startPos; i < endPos; i++) {
301	char ch = chNext;
302	chNext = styler.SafeGetCharAt(i + 1);
303	int stylePrev = style;
304	style = styleNext;
305	styleNext = styler.StyleAt(i + 1);
306	bool atEOL = (ch == '\r' && chNext != '\n') \|\| (ch == '\n');
307
308	if (stylePrev == SCE_C_DEFAULT && (style == SCE_C_WORD \|\| style == SCE_C_PREPROCESSOR))
309	{
310	// Store last word start point.
311	lastStart = i;
312	}
313
314	if (stylePrev == SCE_C_WORD \|\| stylePrev == SCE_C_PREPROCESSOR) {
315	if(isTACLwordchar(ch) && !isTACLwordchar(chNext)) {
316	char s[100];
317	getRange(lastStart, i, styler, s, sizeof(s));
318	if (stylePrev == SCE_C_PREPROCESSOR && strcmp(s, "?section") == 0)
319	{
320	section = true;
321	levelCurrent = 1;
322	levelPrev = 0;
323	}
324	else if (stylePrev == SCE_C_WORD)
325	levelCurrent += classifyFoldPointTACL(s);
326	}
327	}
328
329	if (style == SCE_C_OPERATOR) {
330	if (ch == '[') {
331	levelCurrent++;
332	} else if (ch == ']') {
333	levelCurrent--;
334	}
335	}
336	if (foldComment && (style == SCE_C_COMMENTLINE)) {
337	if ((ch == '/') && (chNext == '/')) {
338	char chNext2 = styler.SafeGetCharAt(i + 2);
339	if (chNext2 == '{') {
340	levelCurrent++;
341	} else if (chNext2 == '}') {
342	levelCurrent--;
343	}
344	}
345	}
346
347	if (foldPreprocessor && (style == SCE_C_PREPROCESSOR)) {
348	if (ch == '{' && chNext == '$') {
349	unsigned int j=i+2; // skip {$
350	while ((j<endPos) && IsASpaceOrTab(styler.SafeGetCharAt(j))) {
351	j++;
352	}
353	if (styler.Match(j, "region") \|\| styler.Match(j, "if")) {
354	levelCurrent++;
355	} else if (styler.Match(j, "end")) {
356	levelCurrent--;
357	}
358	}
359	}
360
361	if (foldComment && IsStreamCommentStyle(style)) {
362	if (!IsStreamCommentStyle(stylePrev)) {
363	levelCurrent++;
364	} else if (!IsStreamCommentStyle(styleNext) && !atEOL) {
365	// Comments don't end at end of line and the next character may be unstyled.
366	levelCurrent--;
367	}
368	}
369	if (atEOL) {
370	int lev = levelPrev \| SC_FOLDLEVELBASE;
371	if (visibleChars == 0 && foldCompact)
372	lev \|= SC_FOLDLEVELWHITEFLAG;
373	if ((levelCurrent > levelPrev \|\| section) && (visibleChars > 0))
374	lev \|= SC_FOLDLEVELHEADERFLAG;
375	if (lev != styler.LevelAt(lineCurrent)) {
376	styler.SetLevel(lineCurrent, lev);
377	}
378	lineCurrent++;
379	levelPrev = levelCurrent;
380	visibleChars = 0;
381	section = false;
382	}
383
384	if (!isspacechar(ch))
385	visibleChars++;
386	}
387
388	// Fill in the real level of the next line, keeping the current flags as they will be filled in later
389	int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK;
390	styler.SetLevel(lineCurrent, levelPrev \| flagsNext);
391	}
392
393	static const char * const TACLWordListDesc[] = {
394	"Builtins",
395	"Labels",
396	"Commands",
397	0
398	};
399
400	LexerModule lmTACL(SCLEX_TACL, ColouriseTACLDoc, "TACL", FoldTACLDoc, TACLWordListDesc);