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

// Scintilla source code edit control
/** @file LexBaan.cxx
 ** Lexer for Baan.
 ** Based heavily on LexCPP.cxx
 **/
// Copyright 2001- by Vamsi Potluru <vamsi@who.net> & Praveen Ambekar <ambekarpraveen@yahoo.com>
// The License.txt file describes the conditions under which this software may be distributed.

#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

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

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

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

	WordList &keywords = *keywordlists[0];
	WordList &keywords2 = *keywordlists[1];
	bool stylingWithinPreprocessor = styler.GetPropertyInt("styling.within.preprocessor") != 0;

	if (initStyle == SCE_BAAN_STRINGEOL)	// Does not leak onto next line
		initStyle = SCE_BAAN_DEFAULT;

	int visibleChars = 0;

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

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

		if (sc.state == SCE_BAAN_OPERATOR) {
			sc.SetState(SCE_BAAN_DEFAULT);
		} else if (sc.state == SCE_BAAN_NUMBER) {
			if (!IsAWordChar(sc.ch)) {
				sc.SetState(SCE_BAAN_DEFAULT);
			}
		} else if (sc.state == SCE_BAAN_IDENTIFIER) {
			if (!IsAWordChar(sc.ch)) {
				char s[100];
				sc.GetCurrentLowered(s, sizeof(s));
				if (keywords.InList(s)) {
					sc.ChangeState(SCE_BAAN_WORD);
				} else if (keywords2.InList(s)) {
					sc.ChangeState(SCE_BAAN_WORD2);
				}
				sc.SetState(SCE_BAAN_DEFAULT);
			}
		} else if (sc.state == SCE_BAAN_PREPROCESSOR) {
			if (stylingWithinPreprocessor) {
				if (IsASpace(sc.ch)) {
					sc.SetState(SCE_BAAN_DEFAULT);
				}
			} else {
				if (sc.atLineEnd && (sc.chNext != '^')) {
					sc.SetState(SCE_BAAN_DEFAULT);
				}
			}
		} else if (sc.state == SCE_BAAN_COMMENT) {
			if (sc.atLineEnd) {
				sc.SetState(SCE_BAAN_DEFAULT);
			}
		} else if (sc.state == SCE_BAAN_COMMENTDOC) {
			if (sc.MatchIgnoreCase("enddllusage")) {
				for (unsigned int i = 0; i < 10; i++){
					sc.Forward();
				}
				sc.ForwardSetState(SCE_BAAN_DEFAULT);
			}
		} else if (sc.state == SCE_BAAN_STRING) {
			if (sc.ch == '\"') {
				sc.ForwardSetState(SCE_BAAN_DEFAULT);
			} else if ((sc.atLineEnd) && (sc.chNext != '^')) {
				sc.ChangeState(SCE_BAAN_STRINGEOL);
				sc.ForwardSetState(SCE_C_DEFAULT);
				visibleChars = 0;
			}
		}

		if (sc.state == SCE_BAAN_DEFAULT) {
			if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
				sc.SetState(SCE_BAAN_NUMBER);
			} else if (sc.MatchIgnoreCase("dllusage")){
					sc.SetState(SCE_BAAN_COMMENTDOC);
					do {
						sc.Forward();
					} while ((!sc.atLineEnd) && sc.More());
			} else if (IsAWordStart(sc.ch)) {
					sc.SetState(SCE_BAAN_IDENTIFIER);
			} else if (sc.Match('|')){
					sc.SetState(SCE_BAAN_COMMENT);
			} else if (sc.ch == '\"') {
				sc.SetState(SCE_BAAN_STRING);
			} else if (sc.ch == '#' && visibleChars == 0) {
				// Preprocessor commands are alone on their line
				sc.SetState(SCE_BAAN_PREPROCESSOR);
				// Skip whitespace between # and preprocessor word
				do {
					sc.Forward();
				} while (IsASpace(sc.ch) && sc.More());
			} else if (isoperator(static_cast<char>(sc.ch))) {
				sc.SetState(SCE_BAAN_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();
}

static void FoldBaanDoc(unsigned int startPos, int length, int initStyle, WordList *[],
                            Accessor &styler) {
	bool foldComment = styler.GetPropertyInt("fold.comment") != 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;
	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_BAAN_COMMENT || style == SCE_BAAN_COMMENTDOC)) {
			if (style != stylePrev) {
				levelCurrent++;
			} else if ((style != styleNext) && !atEOL) {
				// Comments don't end at end of line and the next character may be unstyled.
				levelCurrent--;
			}
		}
		if (style == SCE_BAAN_OPERATOR) {
			if (ch == '{') {
				levelCurrent++;
			} else if (ch == '}') {
				levelCurrent--;
			}
		}
		if (atEOL) {
			int lev = levelPrev;
			if (visibleChars == 0 && foldCompact)
				lev |= SC_FOLDLEVELWHITEFLAG;
			if ((levelCurrent > levelPrev) && (visibleChars > 0))
				lev |= SC_FOLDLEVELHEADERFLAG;
			if (lev != styler.LevelAt(lineCurrent)) {
				styler.SetLevel(lineCurrent, lev);
			}
			lineCurrent++;
			levelPrev = levelCurrent;
			visibleChars = 0;
		}
		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);
}

LexerModule lmBaan(SCLEX_BAAN, ColouriseBaanDoc, "baan", FoldBaanDoc);
Commit	Line	Data
1a2fb4cd RD	1	// Scintilla source code edit control
	2	/** @file LexBaan.cxx
	3	** Lexer for Baan.
	4	** Based heavily on LexCPP.cxx
	5	**/
	6	// Copyright 2001- by Vamsi Potluru <vamsi@who.net> & Praveen Ambekar <ambekarpraveen@yahoo.com>
	7	// The License.txt file describes the conditions under which this software may be distributed.
	8
	9	#include <stdlib.h>
	10	#include <string.h>
1a2fb4cd RD	11	#include <stdio.h>
1a2fb4cd RD	12	#include <stdarg.h>
1dcf666d RD	13	#include <assert.h>
1dcf666d RD	14	#include <ctype.h>
1a2fb4cd	15
1dcf666d RD	16	#include "ILexer.h"
	17	#include "Scintilla.h"
	18	#include "SciLexer.h"
1a2fb4cd	19
1dcf666d RD	20	#include "WordList.h"
1dcf666d RD	21	#include "LexAccessor.h"
1a2fb4cd RD	22	#include "Accessor.h"
1a2fb4cd RD	23	#include "StyleContext.h"
1dcf666d RD	24	#include "CharacterSet.h"
1dcf666d RD	25	#include "LexerModule.h"
1a2fb4cd	26
7e0c58e9 RD	27	#ifdef SCI_NAMESPACE
	28	using namespace Scintilla;
	29	#endif
	30
1a2fb4cd RD	31	static inline bool IsAWordChar(const int ch) {
	32	return (ch < 0x80) && (isalnum(ch) \|\| ch == '.' \|\| ch == '_' \|\| ch == '$' \|\| ch == ':');
	33	}
	34
	35	static inline bool IsAWordStart(const int ch) {
	36	return (ch < 0x80) && (isalnum(ch) \|\| ch == '_');
	37	}
	38
	39	static void ColouriseBaanDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
	40	Accessor &styler) {
	41
	42	WordList &keywords = *keywordlists[0];
	43	WordList &keywords2 = *keywordlists[1];
	44	bool stylingWithinPreprocessor = styler.GetPropertyInt("styling.within.preprocessor") != 0;
	45
	46	if (initStyle == SCE_BAAN_STRINGEOL) // Does not leak onto next line
	47	initStyle = SCE_BAAN_DEFAULT;
	48
	49	int visibleChars = 0;
	50
	51	StyleContext sc(startPos, length, initStyle, styler);
	52
	53	for (; sc.More(); sc.Forward()) {
	54
	55	if (sc.state == SCE_BAAN_OPERATOR) {
	56	sc.SetState(SCE_BAAN_DEFAULT);
	57	} else if (sc.state == SCE_BAAN_NUMBER) {
	58	if (!IsAWordChar(sc.ch)) {
	59	sc.SetState(SCE_BAAN_DEFAULT);
	60	}
	61	} else if (sc.state == SCE_BAAN_IDENTIFIER) {
	62	if (!IsAWordChar(sc.ch)) {
	63	char s[100];
	64	sc.GetCurrentLowered(s, sizeof(s));
	65	if (keywords.InList(s)) {
	66	sc.ChangeState(SCE_BAAN_WORD);
	67	} else if (keywords2.InList(s)) {
	68	sc.ChangeState(SCE_BAAN_WORD2);
	69	}
	70	sc.SetState(SCE_BAAN_DEFAULT);
	71	}
	72	} else if (sc.state == SCE_BAAN_PREPROCESSOR) {
	73	if (stylingWithinPreprocessor) {
	74	if (IsASpace(sc.ch)) {
	75	sc.SetState(SCE_BAAN_DEFAULT);
	76	}
	77	} else {
	78	if (sc.atLineEnd && (sc.chNext != '^')) {
	79	sc.SetState(SCE_BAAN_DEFAULT);
	80	}
	81	}
	82	} else if (sc.state == SCE_BAAN_COMMENT) {
	83	if (sc.atLineEnd) {
	84	sc.SetState(SCE_BAAN_DEFAULT);
	85	}
	86	} else if (sc.state == SCE_BAAN_COMMENTDOC) {
	87	if (sc.MatchIgnoreCase("enddllusage")) {
	88	for (unsigned int i = 0; i < 10; i++){
	89	sc.Forward();
	90	}
	91	sc.ForwardSetState(SCE_BAAN_DEFAULT);
	92	}
	93	} else if (sc.state == SCE_BAAN_STRING) {
	94	if (sc.ch == '\"') {
95	sc.ForwardSetState(SCE_BAAN_DEFAULT);
96	} else if ((sc.atLineEnd) && (sc.chNext != '^')) {
97	sc.ChangeState(SCE_BAAN_STRINGEOL);
98	sc.ForwardSetState(SCE_C_DEFAULT);
99	visibleChars = 0;
100	}
101	}
102
103	if (sc.state == SCE_BAAN_DEFAULT) {
104	if (IsADigit(sc.ch) \|\| (sc.ch == '.' && IsADigit(sc.chNext))) {
105	sc.SetState(SCE_BAAN_NUMBER);
106	} else if (sc.MatchIgnoreCase("dllusage")){
107	sc.SetState(SCE_BAAN_COMMENTDOC);
108	do {
109	sc.Forward();
110	} while ((!sc.atLineEnd) && sc.More());
111	} else if (IsAWordStart(sc.ch)) {
112	sc.SetState(SCE_BAAN_IDENTIFIER);
113	} else if (sc.Match('\|')){
114	sc.SetState(SCE_BAAN_COMMENT);
115	} else if (sc.ch == '\"') {
116	sc.SetState(SCE_BAAN_STRING);
117	} else if (sc.ch == '#' && visibleChars == 0) {
118	// Preprocessor commands are alone on their line
119	sc.SetState(SCE_BAAN_PREPROCESSOR);
120	// Skip whitespace between # and preprocessor word
121	do {
122	sc.Forward();
123	} while (IsASpace(sc.ch) && sc.More());
124	} else if (isoperator(static_cast<char>(sc.ch))) {
125	sc.SetState(SCE_BAAN_OPERATOR);
126	}
127	}
128	if (sc.atLineEnd) {
129	// Reset states to begining of colourise so no surprises
130	// if different sets of lines lexed.
131	visibleChars = 0;
132	}
133	if (!IsASpace(sc.ch)) {
134	visibleChars++;
135	}
136	}
137	sc.Complete();
138	}
139
140	static void FoldBaanDoc(unsigned int startPos, int length, int initStyle, WordList *[],
141	Accessor &styler) {
142	bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
143	bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
144	unsigned int endPos = startPos + length;
145	int visibleChars = 0;
146	int lineCurrent = styler.GetLine(startPos);
147	int levelPrev = styler.LevelAt(lineCurrent) & SC_FOLDLEVELNUMBERMASK;
148	int levelCurrent = levelPrev;
149	char chNext = styler[startPos];
150	int styleNext = styler.StyleAt(startPos);
151	int style = initStyle;
152	for (unsigned int i = startPos; i < endPos; i++) {
153	char ch = chNext;
154	chNext = styler.SafeGetCharAt(i + 1);
155	int stylePrev = style;
156	style = styleNext;
157	styleNext = styler.StyleAt(i + 1);
158	bool atEOL = (ch == '\r' && chNext != '\n') \|\| (ch == '\n');
159	if (foldComment &&
160	(style == SCE_BAAN_COMMENT \|\| style == SCE_BAAN_COMMENTDOC)) {
161	if (style != stylePrev) {
162	levelCurrent++;
163	} else if ((style != styleNext) && !atEOL) {
164	// Comments don't end at end of line and the next character may be unstyled.
165	levelCurrent--;
166	}
167	}
168	if (style == SCE_BAAN_OPERATOR) {
169	if (ch == '{') {
170	levelCurrent++;
171	} else if (ch == '}') {
172	levelCurrent--;
173	}
174	}
175	if (atEOL) {
176	int lev = levelPrev;
177	if (visibleChars == 0 && foldCompact)
178	lev \|= SC_FOLDLEVELWHITEFLAG;
179	if ((levelCurrent > levelPrev) && (visibleChars > 0))
180	lev \|= SC_FOLDLEVELHEADERFLAG;
181	if (lev != styler.LevelAt(lineCurrent)) {
182	styler.SetLevel(lineCurrent, lev);
183	}
184	lineCurrent++;
185	levelPrev = levelCurrent;
186	visibleChars = 0;
187	}
188	if (!isspacechar(ch))
189	visibleChars++;
190	}
191	// Fill in the real level of the next line, keeping the current flags as they will be filled in later
192	int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK;
193	styler.SetLevel(lineCurrent, levelPrev \| flagsNext);
194	}
195
196	LexerModule lmBaan(SCLEX_BAAN, ColouriseBaanDoc, "baan", FoldBaanDoc);