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// SciTE - Scintilla based Text Editor
// LexBullant.cxx - lexer for Bullant
#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"
using namespace Scintilla;
static int classifyWordBullant(Sci_PositionU start, Sci_PositionU end, WordList &keywords, Accessor &styler) {
char s[100];
s[0] = '\0';
for (Sci_PositionU i = 0; i < end - start + 1 && i < 30; i++) {
s[i] = static_cast<char>(tolower(styler[start + i]));
s[i + 1] = '\0';
}
int lev= 0;
char chAttr = SCE_C_IDENTIFIER;
if (isdigit(s[0]) || (s[0] == '.')){
chAttr = SCE_C_NUMBER;
}
else {
if (keywords.InList(s)) {
chAttr = SCE_C_WORD;
if (strcmp(s, "end") == 0)
lev = -1;
else if (strcmp(s, "method") == 0 ||
strcmp(s, "case") == 0 ||
strcmp(s, "class") == 0 ||
strcmp(s, "debug") == 0 ||
strcmp(s, "test") == 0 ||
strcmp(s, "if") == 0 ||
strcmp(s, "lock") == 0 ||
strcmp(s, "transaction") == 0 ||
strcmp(s, "trap") == 0 ||
strcmp(s, "until") == 0 ||
strcmp(s, "while") == 0)
lev = 1;
}
}
styler.ColourTo(end, chAttr);
return lev;
}
static void ColouriseBullantDoc(Sci_PositionU startPos, Sci_Position length, int initStyle, WordList *keywordlists[],
Accessor &styler) {
WordList &keywords = *keywordlists[0];
styler.StartAt(startPos);
bool fold = styler.GetPropertyInt("fold") != 0;
Sci_Position lineCurrent = styler.GetLine(startPos);
int levelPrev = styler.LevelAt(lineCurrent) & SC_FOLDLEVELNUMBERMASK;
int levelCurrent = levelPrev;
int state = initStyle;
if (state == SCE_C_STRINGEOL) // Does not leak onto next line
state = SCE_C_DEFAULT;
char chPrev = ' ';
char chNext = styler[startPos];
Sci_PositionU lengthDoc = startPos + length;
int visibleChars = 0;
styler.StartSegment(startPos);
int endFoundThisLine = 0;
for (Sci_PositionU 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
endFoundThisLine = 0;
if (state == SCE_C_STRINGEOL) {
styler.ColourTo(i, state);
state = SCE_C_DEFAULT;
}
if (fold) {
int lev = levelPrev;
if (visibleChars == 0)
lev |= SC_FOLDLEVELWHITEFLAG;
if ((levelCurrent > levelPrev) && (visibleChars > 0))
lev |= SC_FOLDLEVELHEADERFLAG;
styler.SetLevel(lineCurrent, lev);
lineCurrent++;
levelPrev = levelCurrent;
}
visibleChars = 0;
/* int indentBlock = GetLineIndentation(lineCurrent);
if (blockChange==1){
lineCurrent++;
int pos=SetLineIndentation(lineCurrent, indentBlock + indentSize);
} else if (blockChange==-1) {
indentBlock -= indentSize;
if (indentBlock < 0)
indentBlock = 0;
SetLineIndentation(lineCurrent, indentBlock);
lineCurrent++;
}
blockChange=0;
*/ }
if (!(IsASCII(ch) && isspace(ch)))
visibleChars++;
if (styler.IsLeadByte(ch)) {
chNext = styler.SafeGetCharAt(i + 2);
chPrev = ' ';
i += 1;
continue;
}
if (state == SCE_C_DEFAULT) {
if (iswordstart(ch)) {
styler.ColourTo(i-1, state);
state = SCE_C_IDENTIFIER;
} else if (ch == '@' && chNext == 'o') {
if ((styler.SafeGetCharAt(i+2) =='f') && (styler.SafeGetCharAt(i+3) == 'f')) {
styler.ColourTo(i-1, state);
state = SCE_C_COMMENT;
}
} else if (ch == '#') {
styler.ColourTo(i-1, state);
state = SCE_C_COMMENTLINE;
} else if (ch == '\"') {
styler.ColourTo(i-1, state);
state = SCE_C_STRING;
} else if (ch == '\'') {
styler.ColourTo(i-1, state);
state = SCE_C_CHARACTER;
} else if (isoperator(ch)) {
styler.ColourTo(i-1, state);
styler.ColourTo(i, SCE_C_OPERATOR);
}
} else if (state == SCE_C_IDENTIFIER) {
if (!iswordchar(ch)) {
int levelChange = classifyWordBullant(styler.GetStartSegment(), i - 1, keywords, styler);
state = SCE_C_DEFAULT;
chNext = styler.SafeGetCharAt(i + 1);
if (ch == '#') {
state = SCE_C_COMMENTLINE;
} else if (ch == '\"') {
state = SCE_C_STRING;
} else if (ch == '\'') {
state = SCE_C_CHARACTER;
} else if (isoperator(ch)) {
styler.ColourTo(i, SCE_C_OPERATOR);
}
if (endFoundThisLine == 0)
levelCurrent+=levelChange;
if (levelChange == -1)
endFoundThisLine=1;
}
} else if (state == SCE_C_COMMENT) {
if (ch == '@' && chNext == 'o') {
if (styler.SafeGetCharAt(i+2) == 'n') {
styler.ColourTo(i+2, state);
state = SCE_C_DEFAULT;
i+=2;
}
}
} else if (state == SCE_C_COMMENTLINE) {
if (ch == '\r' || ch == '\n') {
endFoundThisLine = 0;
styler.ColourTo(i-1, state);
state = SCE_C_DEFAULT;
}
} else if (state == SCE_C_STRING) {
if (ch == '\\') {
if (chNext == '\"' || chNext == '\'' || chNext == '\\') {
i++;
ch = chNext;
chNext = styler.SafeGetCharAt(i + 1);
}
} else if (ch == '\"') {
styler.ColourTo(i, state);
state = SCE_C_DEFAULT;
} else if (chNext == '\r' || chNext == '\n') {
endFoundThisLine = 0;
styler.ColourTo(i-1, SCE_C_STRINGEOL);
state = SCE_C_STRINGEOL;
}
} else if (state == SCE_C_CHARACTER) {
if ((ch == '\r' || ch == '\n') && (chPrev != '\\')) {
endFoundThisLine = 0;
styler.ColourTo(i-1, SCE_C_STRINGEOL);
state = SCE_C_STRINGEOL;
} else if (ch == '\\') {
if (chNext == '\"' || chNext == '\'' || chNext == '\\') {
i++;
ch = chNext;
chNext = styler.SafeGetCharAt(i + 1);
}
} else if (ch == '\'') {
styler.ColourTo(i, state);
state = SCE_C_DEFAULT;
}
}
chPrev = ch;
}
styler.ColourTo(lengthDoc - 1, state);
// Fill in the real level of the next line, keeping the current flags as they will be filled in later
if (fold) {
int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK;
//styler.SetLevel(lineCurrent, levelCurrent | flagsNext);
styler.SetLevel(lineCurrent, levelPrev | flagsNext);
}
}
static const char * const bullantWordListDesc[] = {
"Keywords",
0
};
LexerModule lmBullant(SCLEX_BULLANT, ColouriseBullantDoc, "bullant", 0, bullantWordListDesc);
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