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

// Scintilla source code edit control
/** @file LexSpecman.cxx
 ** Lexer for Specman E language.
 ** Written by Avi Yegudin, based on C++ lexer by Neil Hodgson
 **/
// Copyright 1998-2002 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.

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

static inline bool IsAWordChar(const int ch) {
	return (ch < 0x80) && (isalnum(ch) || ch == '.' || ch == '_' || ch == '\'');
}

static inline bool IsANumberChar(const int ch) {
	return (ch < 0x80) && (isalnum(ch) || ch == '_' || ch == '\'');
}

static inline bool IsAWordStart(const int ch) {
	return (ch < 0x80) && (isalnum(ch) || ch == '_' || ch == '`');
}

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

	WordList &keywords = *keywordlists[0];
	WordList &keywords2 = *keywordlists[1];
	WordList &keywords3 = *keywordlists[2];
	WordList &keywords4 = *keywordlists[3];

	// Do not leak onto next line
	if (initStyle == SCE_SN_STRINGEOL)
		initStyle = SCE_SN_CODE;

	int visibleChars = 0;

	StyleContext sc(startPos, length, initStyle, styler);

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

		if (sc.atLineStart && (sc.state == SCE_SN_STRING)) {
			// Prevent SCE_SN_STRINGEOL from leaking back to previous line
			sc.SetState(SCE_SN_STRING);
		}

		// Handle line continuation generically.
		if (sc.ch == '\\') {
			if (sc.chNext == '\n' || sc.chNext == '\r') {
				sc.Forward();
				if (sc.ch == '\r' && sc.chNext == '\n') {
					sc.Forward();
				}
				continue;
			}
		}

		// Determine if the current state should terminate.
		if (sc.state == SCE_SN_OPERATOR) {
			sc.SetState(SCE_SN_CODE);
		} else if (sc.state == SCE_SN_NUMBER) {
			if (!IsANumberChar(sc.ch)) {
				sc.SetState(SCE_SN_CODE);
			}
		} else if (sc.state == SCE_SN_IDENTIFIER) {
			if (!IsAWordChar(sc.ch) || (sc.ch == '.')) {
				char s[100];
				if (caseSensitive) {
					sc.GetCurrent(s, sizeof(s));
				} else {
					sc.GetCurrentLowered(s, sizeof(s));
				}
				if (keywords.InList(s)) {
					sc.ChangeState(SCE_SN_WORD);
				} else if (keywords2.InList(s)) {
					sc.ChangeState(SCE_SN_WORD2);
				} else if (keywords3.InList(s)) {
                                        sc.ChangeState(SCE_SN_WORD3);
				} else if (keywords4.InList(s)) {
					sc.ChangeState(SCE_SN_USER);
				}
				sc.SetState(SCE_SN_CODE);
			}
		} else if (sc.state == SCE_SN_PREPROCESSOR) {
                        if (IsASpace(sc.ch)) {
                                sc.SetState(SCE_SN_CODE);
                        }
		} else if (sc.state == SCE_SN_DEFAULT) {
			if (sc.Match('<', '\'')) {
				sc.Forward();
				sc.ForwardSetState(SCE_SN_CODE);
			}
		} else if (sc.state == SCE_SN_COMMENTLINE || sc.state == SCE_SN_COMMENTLINEBANG) {
			if (sc.atLineEnd) {
				sc.SetState(SCE_SN_CODE);
				visibleChars = 0;
			}
		} else if (sc.state == SCE_SN_STRING) {
			if (sc.ch == '\\') {
				if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
					sc.Forward();
				}
			} else if (sc.ch == '\"') {
				sc.ForwardSetState(SCE_SN_CODE);
			} else if (sc.atLineEnd) {
				sc.ChangeState(SCE_SN_STRINGEOL);
				sc.ForwardSetState(SCE_SN_CODE);
				visibleChars = 0;
			}
		} else if (sc.state == SCE_SN_SIGNAL) {
			if (sc.atLineEnd) {
				sc.ChangeState(SCE_SN_STRINGEOL);
				sc.ForwardSetState(SCE_SN_CODE);
				visibleChars = 0;
			} else if (sc.ch == '\\') {
				if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
					sc.Forward();
				}
			} else if (sc.ch == '\'') {
				sc.ForwardSetState(SCE_SN_CODE);
			}
		} else if (sc.state == SCE_SN_REGEXTAG) {
			if (!IsADigit(sc.ch)) {
				sc.SetState(SCE_SN_CODE);
			}
		}

		// Determine if a new state should be entered.
		if (sc.state == SCE_SN_CODE) {
			if (sc.ch == '$' && IsADigit(sc.chNext)) {
				sc.SetState(SCE_SN_REGEXTAG);
                                sc.Forward();
			} else if (IsADigit(sc.ch)) {
                                sc.SetState(SCE_SN_NUMBER);
			} else if (IsAWordStart(sc.ch)) {
				sc.SetState(SCE_SN_IDENTIFIER);
			} else if (sc.Match('\'', '>')) {
                                sc.SetState(SCE_SN_DEFAULT);
				sc.Forward();	// Eat the * so it isn't used for the end of the comment
			} else if (sc.Match('/', '/')) {
				if (sc.Match("//!"))	// Nice to have a different comment style
					sc.SetState(SCE_SN_COMMENTLINEBANG);
				else
					sc.SetState(SCE_SN_COMMENTLINE);
			} else if (sc.Match('-', '-')) {
				if (sc.Match("--!"))	// Nice to have a different comment style
					sc.SetState(SCE_SN_COMMENTLINEBANG);
				else
					sc.SetState(SCE_SN_COMMENTLINE);
			} else if (sc.ch == '\"') {
				sc.SetState(SCE_SN_STRING);
			} else if (sc.ch == '\'') {
				sc.SetState(SCE_SN_SIGNAL);
			} else if (sc.ch == '#' && visibleChars == 0) {
				// Preprocessor commands are alone on their line
				sc.SetState(SCE_SN_PREPROCESSOR);
				// Skip whitespace between # and preprocessor word
				do {
					sc.Forward();
				} while ((sc.ch == ' ' || sc.ch == '\t') && sc.More());
				if (sc.atLineEnd) {
					sc.SetState(SCE_SN_CODE);
				}
			} else if (isoperator(static_cast<char>(sc.ch)) || sc.ch == '@') {
				sc.SetState(SCE_SN_OPERATOR);
			}
		}

		if (sc.atLineEnd) {
			// Reset states to begining of colourise so no surprises
			// if different sets of lines lexed.
			visibleChars = 0;
		}
		if (!IsASpace(sc.ch)) {
			visibleChars++;
		}
	}
	sc.Complete();
}

// 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 FoldNoBoxSpecmanDoc(unsigned int startPos, int length, int,
                            Accessor &styler) {
	bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
	bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
	bool foldAtElse = styler.GetPropertyInt("fold.at.else", 0) != 0;
	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;
	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 && (style == SCE_SN_COMMENTLINE)) {
			if (((ch == '/') && (chNext == '/')) ||
                            ((ch == '-') && (chNext == '-'))) {
				char chNext2 = styler.SafeGetCharAt(i + 2);
				if (chNext2 == '{') {
					levelNext++;
				} else if (chNext2 == '}') {
					levelNext--;
				}
			}
		}
		if (style == SCE_SN_OPERATOR) {
			if (ch == '{') {
				// Measure the minimum before a '{' to allow
				// folding on "} else {"
				if (levelMinCurrent > levelNext) {
					levelMinCurrent = levelNext;
				}
				levelNext++;
			} else if (ch == '}') {
				levelNext--;
			}
		}
		if (atEOL) {
			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;
			visibleChars = 0;
		}
		if (!isspacechar(ch))
			visibleChars++;
	}
}

static void FoldSpecmanDoc(unsigned int startPos, int length, int initStyle, WordList *[],
                       Accessor &styler) {
	FoldNoBoxSpecmanDoc(startPos, length, initStyle, styler);
}

static const char * const specmanWordLists[] = {
            "Primary keywords and identifiers",
            "Secondary keywords and identifiers",
            "Sequence keywords and identifiers",
            "User defined keywords and identifiers",
            "Unused",
            0,
        };

static void ColouriseSpecmanDocSensitive(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
                                     Accessor &styler) {
	ColouriseSpecmanDoc(startPos, length, initStyle, keywordlists, styler, true);
}


LexerModule lmSpecman(SCLEX_SPECMAN, ColouriseSpecmanDocSensitive, "specman", FoldSpecmanDoc, specmanWordLists);
Commit	Line	Data
591d01be RD	1	// Scintilla source code edit control
	2	/** @file LexSpecman.cxx
	3	** Lexer for Specman E language.
	4	** Written by Avi Yegudin, based on C++ lexer by Neil Hodgson
	5	**/
	6	// Copyright 1998-2002 by Neil Hodgson <neilh@scintilla.org>
	7	// The License.txt file describes the conditions under which this software may be distributed.
	8
	9	#include <stdlib.h>
	10	#include <string.h>
	11	#include <ctype.h>
	12	#include <stdio.h>
	13	#include <stdarg.h>
1dcf666d	14	#include <assert.h>
591d01be	15
1dcf666d RD	16	#include "ILexer.h"
	17	#include "Scintilla.h"
	18	#include "SciLexer.h"
591d01be	19
1dcf666d RD	20	#include "WordList.h"
1dcf666d RD	21	#include "LexAccessor.h"
591d01be RD	22	#include "Accessor.h"
591d01be RD	23	#include "StyleContext.h"
1dcf666d RD	24	#include "CharacterSet.h"
1dcf666d RD	25	#include "LexerModule.h"
591d01be	26
7e0c58e9 RD	27	#ifdef SCI_NAMESPACE
	28	using namespace Scintilla;
	29	#endif
591d01be RD	30
	31	static inline bool IsAWordChar(const int ch) {
	32	return (ch < 0x80) && (isalnum(ch) \|\| ch == '.' \|\| ch == '_' \|\| ch == '\'');
	33	}
	34
	35	static inline bool IsANumberChar(const int ch) {
	36	return (ch < 0x80) && (isalnum(ch) \|\| ch == '_' \|\| ch == '\'');
	37	}
	38
	39	static inline bool IsAWordStart(const int ch) {
	40	return (ch < 0x80) && (isalnum(ch) \|\| ch == '_' \|\| ch == '`');
	41	}
	42
	43	static void ColouriseSpecmanDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
	44	Accessor &styler, bool caseSensitive) {
	45
	46	WordList &keywords = *keywordlists[0];
	47	WordList &keywords2 = *keywordlists[1];
	48	WordList &keywords3 = *keywordlists[2];
	49	WordList &keywords4 = *keywordlists[3];
	50
	51	// Do not leak onto next line
	52	if (initStyle == SCE_SN_STRINGEOL)
	53	initStyle = SCE_SN_CODE;
	54
	55	int visibleChars = 0;
	56
	57	StyleContext sc(startPos, length, initStyle, styler);
	58
	59	for (; sc.More(); sc.Forward()) {
	60
	61	if (sc.atLineStart && (sc.state == SCE_SN_STRING)) {
	62	// Prevent SCE_SN_STRINGEOL from leaking back to previous line
	63	sc.SetState(SCE_SN_STRING);
	64	}
	65
	66	// Handle line continuation generically.
	67	if (sc.ch == '\\') {
	68	if (sc.chNext == '\n' \|\| sc.chNext == '\r') {
	69	sc.Forward();
	70	if (sc.ch == '\r' && sc.chNext == '\n') {
	71	sc.Forward();
	72	}
	73	continue;
	74	}
	75	}
	76
	77	// Determine if the current state should terminate.
	78	if (sc.state == SCE_SN_OPERATOR) {
	79	sc.SetState(SCE_SN_CODE);
	80	} else if (sc.state == SCE_SN_NUMBER) {
	81	if (!IsANumberChar(sc.ch)) {
	82	sc.SetState(SCE_SN_CODE);
	83	}
	84	} else if (sc.state == SCE_SN_IDENTIFIER) {
	85	if (!IsAWordChar(sc.ch) \|\| (sc.ch == '.')) {
	86	char s[100];
	87	if (caseSensitive) {
	88	sc.GetCurrent(s, sizeof(s));
	89	} else {
	90	sc.GetCurrentLowered(s, sizeof(s));
	91	}
	92	if (keywords.InList(s)) {
	93	sc.ChangeState(SCE_SN_WORD);
94	} else if (keywords2.InList(s)) {
95	sc.ChangeState(SCE_SN_WORD2);
96	} else if (keywords3.InList(s)) {
97	sc.ChangeState(SCE_SN_WORD3);
98	} else if (keywords4.InList(s)) {
99	sc.ChangeState(SCE_SN_USER);
100	}
101	sc.SetState(SCE_SN_CODE);
102	}
103	} else if (sc.state == SCE_SN_PREPROCESSOR) {
104	if (IsASpace(sc.ch)) {
105	sc.SetState(SCE_SN_CODE);
106	}
107	} else if (sc.state == SCE_SN_DEFAULT) {
108	if (sc.Match('<', '\'')) {
109	sc.Forward();
110	sc.ForwardSetState(SCE_SN_CODE);
111	}
112	} else if (sc.state == SCE_SN_COMMENTLINE \|\| sc.state == SCE_SN_COMMENTLINEBANG) {
113	if (sc.atLineEnd) {
114	sc.SetState(SCE_SN_CODE);
115	visibleChars = 0;
116	}
117	} else if (sc.state == SCE_SN_STRING) {
118	if (sc.ch == '\\') {
119	if (sc.chNext == '\"' \|\| sc.chNext == '\'' \|\| sc.chNext == '\\') {
120	sc.Forward();
121	}
122	} else if (sc.ch == '\"') {
123	sc.ForwardSetState(SCE_SN_CODE);
124	} else if (sc.atLineEnd) {
125	sc.ChangeState(SCE_SN_STRINGEOL);
126	sc.ForwardSetState(SCE_SN_CODE);
127	visibleChars = 0;
128	}
129	} else if (sc.state == SCE_SN_SIGNAL) {
130	if (sc.atLineEnd) {
131	sc.ChangeState(SCE_SN_STRINGEOL);
132	sc.ForwardSetState(SCE_SN_CODE);
133	visibleChars = 0;
134	} else if (sc.ch == '\\') {
135	if (sc.chNext == '\"' \|\| sc.chNext == '\'' \|\| sc.chNext == '\\') {
136	sc.Forward();
137	}
138	} else if (sc.ch == '\'') {
139	sc.ForwardSetState(SCE_SN_CODE);
140	}
141	} else if (sc.state == SCE_SN_REGEXTAG) {
142	if (!IsADigit(sc.ch)) {
143	sc.SetState(SCE_SN_CODE);
144	}
145	}
146
147	// Determine if a new state should be entered.
148	if (sc.state == SCE_SN_CODE) {
149	if (sc.ch == '$' && IsADigit(sc.chNext)) {
150	sc.SetState(SCE_SN_REGEXTAG);
151	sc.Forward();
152	} else if (IsADigit(sc.ch)) {
153	sc.SetState(SCE_SN_NUMBER);
154	} else if (IsAWordStart(sc.ch)) {
155	sc.SetState(SCE_SN_IDENTIFIER);
156	} else if (sc.Match('\'', '>')) {
157	sc.SetState(SCE_SN_DEFAULT);
158	sc.Forward(); // Eat the * so it isn't used for the end of the comment
159	} else if (sc.Match('/', '/')) {
160	if (sc.Match("//!")) // Nice to have a different comment style
161	sc.SetState(SCE_SN_COMMENTLINEBANG);
162	else
163	sc.SetState(SCE_SN_COMMENTLINE);
164	} else if (sc.Match('-', '-')) {
165	if (sc.Match("--!")) // Nice to have a different comment style
166	sc.SetState(SCE_SN_COMMENTLINEBANG);
167	else
168	sc.SetState(SCE_SN_COMMENTLINE);
169	} else if (sc.ch == '\"') {
170	sc.SetState(SCE_SN_STRING);
171	} else if (sc.ch == '\'') {
172	sc.SetState(SCE_SN_SIGNAL);
173	} else if (sc.ch == '#' && visibleChars == 0) {
174	// Preprocessor commands are alone on their line
175	sc.SetState(SCE_SN_PREPROCESSOR);
176	// Skip whitespace between # and preprocessor word
177	do {
178	sc.Forward();
179	} while ((sc.ch == ' ' \|\| sc.ch == '\t') && sc.More());
180	if (sc.atLineEnd) {
181	sc.SetState(SCE_SN_CODE);
182	}
183	} else if (isoperator(static_cast<char>(sc.ch)) \|\| sc.ch == '@') {
184	sc.SetState(SCE_SN_OPERATOR);
185	}
186	}
187
188	if (sc.atLineEnd) {
189	// Reset states to begining of colourise so no surprises
190	// if different sets of lines lexed.
191	visibleChars = 0;
192	}
193	if (!IsASpace(sc.ch)) {
194	visibleChars++;
195	}
196	}
197	sc.Complete();
198	}
199
200	// Store both the current line's fold level and the next lines in the
201	// level store to make it easy to pick up with each increment
202	// and to make it possible to fiddle the current level for "} else {".
203	static void FoldNoBoxSpecmanDoc(unsigned int startPos, int length, int,
204	Accessor &styler) {
205	bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
206	bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
207	bool foldAtElse = styler.GetPropertyInt("fold.at.else", 0) != 0;
208	unsigned int endPos = startPos + length;
209	int visibleChars = 0;
210	int lineCurrent = styler.GetLine(startPos);
211	int levelCurrent = SC_FOLDLEVELBASE;
212	if (lineCurrent > 0)
213	levelCurrent = styler.LevelAt(lineCurrent-1) >> 16;
214	int levelMinCurrent = levelCurrent;
215	int levelNext = levelCurrent;
216	char chNext = styler[startPos];
217	int styleNext = styler.StyleAt(startPos);
218	int style;
219	for (unsigned int i = startPos; i < endPos; i++) {
220	char ch = chNext;
221	chNext = styler.SafeGetCharAt(i + 1);
222	//int stylePrev = style;
223	style = styleNext;
224	styleNext = styler.StyleAt(i + 1);
225	bool atEOL = (ch == '\r' && chNext != '\n') \|\| (ch == '\n');
226	if (foldComment && (style == SCE_SN_COMMENTLINE)) {
227	if (((ch == '/') && (chNext == '/')) \|\|
228	((ch == '-') && (chNext == '-'))) {
229	char chNext2 = styler.SafeGetCharAt(i + 2);
230	if (chNext2 == '{') {
231	levelNext++;
232	} else if (chNext2 == '}') {
233	levelNext--;
234	}
235	}
236	}
237	if (style == SCE_SN_OPERATOR) {
238	if (ch == '{') {
239	// Measure the minimum before a '{' to allow
240	// folding on "} else {"
241	if (levelMinCurrent > levelNext) {
242	levelMinCurrent = levelNext;
243	}
244	levelNext++;
245	} else if (ch == '}') {
246	levelNext--;
247	}
248	}
249	if (atEOL) {
250	int levelUse = levelCurrent;
251	if (foldAtElse) {
252	levelUse = levelMinCurrent;
253	}
254	int lev = levelUse \| levelNext << 16;
255	if (visibleChars == 0 && foldCompact)
256	lev \|= SC_FOLDLEVELWHITEFLAG;
257	if (levelUse < levelNext)
258	lev \|= SC_FOLDLEVELHEADERFLAG;
259	if (lev != styler.LevelAt(lineCurrent)) {
260	styler.SetLevel(lineCurrent, lev);
261	}
262	lineCurrent++;
263	levelCurrent = levelNext;
264	levelMinCurrent = levelCurrent;
265	visibleChars = 0;
266	}
267	if (!isspacechar(ch))
268	visibleChars++;
269	}
270	}
271
272	static void FoldSpecmanDoc(unsigned int startPos, int length, int initStyle, WordList *[],
273	Accessor &styler) {
274	FoldNoBoxSpecmanDoc(startPos, length, initStyle, styler);
275	}
276
277	static const char * const specmanWordLists[] = {
278	"Primary keywords and identifiers",
279	"Secondary keywords and identifiers",
280	"Sequence keywords and identifiers",
281	"User defined keywords and identifiers",
282	"Unused",
283	0,
284	};
285
286	static void ColouriseSpecmanDocSensitive(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
287	Accessor &styler) {
288	ColouriseSpecmanDoc(startPos, length, initStyle, keywordlists, styler, true);
289	}
290
291
292	LexerModule lmSpecman(SCLEX_SPECMAN, ColouriseSpecmanDocSensitive, "specman", FoldSpecmanDoc, specmanWordLists);