[wxWidgets.git] / contrib / src / stc / scintilla / src / 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 "Platform.h"

#include "PropSet.h"
#include "Accessor.h"
#include "StyleContext.h"
#include "KeyWords.h"
#include "Scintilla.h"
#include "SciLexer.h"


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