[wxWidgets.git] / src / stc / scintilla / src / 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 <ctype.h>
#include <stdio.h>
#include <stdarg.h>

#include "Platform.h"

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