275 lines
8.3 KiB
C++
275 lines
8.3 KiB
C++
// Scintilla source code edit control
|
|
/** @file LexESCRIPT.cxx
|
|
** Lexer for ESCRIPT
|
|
**/
|
|
// Copyright 2003 by Patrizio Bekerle (patrizio@bekerle.com)
|
|
|
|
#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 inline bool IsAWordChar(const int ch) {
|
|
return (ch < 0x80) && (isalnum(ch) || ch == '.' || ch == '_');
|
|
}
|
|
|
|
static inline bool IsAWordStart(const int ch) {
|
|
return (ch < 0x80) && (isalnum(ch) || ch == '_');
|
|
}
|
|
|
|
|
|
|
|
static void ColouriseESCRIPTDoc(Sci_PositionU startPos, Sci_Position length, int initStyle, WordList *keywordlists[],
|
|
Accessor &styler) {
|
|
|
|
WordList &keywords = *keywordlists[0];
|
|
WordList &keywords2 = *keywordlists[1];
|
|
WordList &keywords3 = *keywordlists[2];
|
|
|
|
// Do not leak onto next line
|
|
/*if (initStyle == SCE_ESCRIPT_STRINGEOL)
|
|
initStyle = SCE_ESCRIPT_DEFAULT;*/
|
|
|
|
StyleContext sc(startPos, length, initStyle, styler);
|
|
|
|
bool caseSensitive = styler.GetPropertyInt("escript.case.sensitive", 0) != 0;
|
|
|
|
for (; sc.More(); sc.Forward()) {
|
|
|
|
/*if (sc.atLineStart && (sc.state == SCE_ESCRIPT_STRING)) {
|
|
// Prevent SCE_ESCRIPT_STRINGEOL from leaking back to previous line
|
|
sc.SetState(SCE_ESCRIPT_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_ESCRIPT_OPERATOR || sc.state == SCE_ESCRIPT_BRACE) {
|
|
sc.SetState(SCE_ESCRIPT_DEFAULT);
|
|
} else if (sc.state == SCE_ESCRIPT_NUMBER) {
|
|
if (!IsADigit(sc.ch) || sc.ch != '.') {
|
|
sc.SetState(SCE_ESCRIPT_DEFAULT);
|
|
}
|
|
} else if (sc.state == SCE_ESCRIPT_IDENTIFIER) {
|
|
if (!IsAWordChar(sc.ch) || (sc.ch == '.')) {
|
|
char s[100];
|
|
if (caseSensitive) {
|
|
sc.GetCurrent(s, sizeof(s));
|
|
} else {
|
|
sc.GetCurrentLowered(s, sizeof(s));
|
|
}
|
|
|
|
// sc.GetCurrentLowered(s, sizeof(s));
|
|
|
|
if (keywords.InList(s)) {
|
|
sc.ChangeState(SCE_ESCRIPT_WORD);
|
|
} else if (keywords2.InList(s)) {
|
|
sc.ChangeState(SCE_ESCRIPT_WORD2);
|
|
} else if (keywords3.InList(s)) {
|
|
sc.ChangeState(SCE_ESCRIPT_WORD3);
|
|
// sc.state = SCE_ESCRIPT_IDENTIFIER;
|
|
}
|
|
sc.SetState(SCE_ESCRIPT_DEFAULT);
|
|
}
|
|
} else if (sc.state == SCE_ESCRIPT_COMMENT) {
|
|
if (sc.Match('*', '/')) {
|
|
sc.Forward();
|
|
sc.ForwardSetState(SCE_ESCRIPT_DEFAULT);
|
|
}
|
|
} else if (sc.state == SCE_ESCRIPT_COMMENTDOC) {
|
|
if (sc.Match('*', '/')) {
|
|
sc.Forward();
|
|
sc.ForwardSetState(SCE_ESCRIPT_DEFAULT);
|
|
}
|
|
} else if (sc.state == SCE_ESCRIPT_COMMENTLINE) {
|
|
if (sc.atLineEnd) {
|
|
sc.SetState(SCE_ESCRIPT_DEFAULT);
|
|
}
|
|
} else if (sc.state == SCE_ESCRIPT_STRING) {
|
|
if (sc.ch == '\\') {
|
|
if (sc.chNext == '\"' || sc.chNext == '\\') {
|
|
sc.Forward();
|
|
}
|
|
} else if (sc.ch == '\"') {
|
|
sc.ForwardSetState(SCE_ESCRIPT_DEFAULT);
|
|
}
|
|
}
|
|
|
|
// Determine if a new state should be entered.
|
|
if (sc.state == SCE_ESCRIPT_DEFAULT) {
|
|
if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
|
|
sc.SetState(SCE_ESCRIPT_NUMBER);
|
|
} else if (IsAWordStart(sc.ch) || (sc.ch == '#')) {
|
|
sc.SetState(SCE_ESCRIPT_IDENTIFIER);
|
|
} else if (sc.Match('/', '*')) {
|
|
sc.SetState(SCE_ESCRIPT_COMMENT);
|
|
sc.Forward(); // Eat the * so it isn't used for the end of the comment
|
|
} else if (sc.Match('/', '/')) {
|
|
sc.SetState(SCE_ESCRIPT_COMMENTLINE);
|
|
} else if (sc.ch == '\"') {
|
|
sc.SetState(SCE_ESCRIPT_STRING);
|
|
//} else if (isoperator(static_cast<char>(sc.ch))) {
|
|
} else if (sc.ch == '+' || sc.ch == '-' || sc.ch == '*' || sc.ch == '/' || sc.ch == '=' || sc.ch == '<' || sc.ch == '>' || sc.ch == '&' || sc.ch == '|' || sc.ch == '!' || sc.ch == '?' || sc.ch == ':') {
|
|
sc.SetState(SCE_ESCRIPT_OPERATOR);
|
|
} else if (sc.ch == '{' || sc.ch == '}') {
|
|
sc.SetState(SCE_ESCRIPT_BRACE);
|
|
}
|
|
}
|
|
|
|
}
|
|
sc.Complete();
|
|
}
|
|
|
|
|
|
static int classifyFoldPointESCRIPT(const char* s, const char* prevWord) {
|
|
int lev = 0;
|
|
if (strcmp(prevWord, "end") == 0) return lev;
|
|
if ((strcmp(prevWord, "else") == 0 && strcmp(s, "if") == 0) || strcmp(s, "elseif") == 0)
|
|
return -1;
|
|
|
|
if (strcmp(s, "for") == 0 || strcmp(s, "foreach") == 0
|
|
|| strcmp(s, "program") == 0 || strcmp(s, "function") == 0
|
|
|| strcmp(s, "while") == 0 || strcmp(s, "case") == 0
|
|
|| strcmp(s, "if") == 0 ) {
|
|
lev = 1;
|
|
} else if ( strcmp(s, "endfor") == 0 || strcmp(s, "endforeach") == 0
|
|
|| strcmp(s, "endprogram") == 0 || strcmp(s, "endfunction") == 0
|
|
|| strcmp(s, "endwhile") == 0 || strcmp(s, "endcase") == 0
|
|
|| strcmp(s, "endif") == 0 ) {
|
|
lev = -1;
|
|
}
|
|
|
|
return lev;
|
|
}
|
|
|
|
|
|
static bool IsStreamCommentStyle(int style) {
|
|
return style == SCE_ESCRIPT_COMMENT ||
|
|
style == SCE_ESCRIPT_COMMENTDOC ||
|
|
style == SCE_ESCRIPT_COMMENTLINE;
|
|
}
|
|
|
|
static void FoldESCRIPTDoc(Sci_PositionU startPos, Sci_Position length, int initStyle, WordList *[], Accessor &styler) {
|
|
//~ bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
|
|
// Do not know how to fold the comment at the moment.
|
|
bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
|
|
bool foldComment = true;
|
|
Sci_PositionU endPos = startPos + length;
|
|
int visibleChars = 0;
|
|
Sci_Position 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;
|
|
|
|
Sci_Position lastStart = 0;
|
|
char prevWord[32] = "";
|
|
|
|
for (Sci_PositionU 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 && IsStreamCommentStyle(style)) {
|
|
if (!IsStreamCommentStyle(stylePrev)) {
|
|
levelCurrent++;
|
|
} else if (!IsStreamCommentStyle(styleNext) && !atEOL) {
|
|
// Comments don't end at end of line and the next character may be unstyled.
|
|
levelCurrent--;
|
|
}
|
|
}
|
|
|
|
if (foldComment && (style == SCE_ESCRIPT_COMMENTLINE)) {
|
|
if ((ch == '/') && (chNext == '/')) {
|
|
char chNext2 = styler.SafeGetCharAt(i + 2);
|
|
if (chNext2 == '{') {
|
|
levelCurrent++;
|
|
} else if (chNext2 == '}') {
|
|
levelCurrent--;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (stylePrev == SCE_ESCRIPT_DEFAULT && style == SCE_ESCRIPT_WORD3)
|
|
{
|
|
// Store last word start point.
|
|
lastStart = i;
|
|
}
|
|
|
|
if (style == SCE_ESCRIPT_WORD3) {
|
|
if(iswordchar(ch) && !iswordchar(chNext)) {
|
|
char s[32];
|
|
Sci_PositionU j;
|
|
for(j = 0; ( j < 31 ) && ( j < i-lastStart+1 ); j++) {
|
|
s[j] = static_cast<char>(tolower(styler[lastStart + j]));
|
|
}
|
|
s[j] = '\0';
|
|
levelCurrent += classifyFoldPointESCRIPT(s, prevWord);
|
|
strcpy(prevWord, s);
|
|
}
|
|
}
|
|
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;
|
|
strcpy(prevWord, "");
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
|
|
static const char * const ESCRIPTWordLists[] = {
|
|
"Primary keywords and identifiers",
|
|
"Intrinsic functions",
|
|
"Extended and user defined functions",
|
|
0,
|
|
};
|
|
|
|
LexerModule lmESCRIPT(SCLEX_ESCRIPT, ColouriseESCRIPTDoc, "escript", FoldESCRIPTDoc, ESCRIPTWordLists);
|