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// 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);
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