401 lines
11 KiB
C++
401 lines
11 KiB
C++
// Scintilla source code edit control
|
|
|
|
// File: LexMetapost.cxx - general context conformant metapost coloring scheme
|
|
// Author: Hans Hagen - PRAGMA ADE - Hasselt NL - www.pragma-ade.com
|
|
// Version: September 28, 2003
|
|
// Modified by instanton: July 10, 2007
|
|
// Folding based on keywordlists[]
|
|
|
|
// Copyright: 1998-2003 by Neil Hodgson <neilh@scintilla.org>
|
|
// The License.txt file describes the conditions under which this software may be distributed.
|
|
|
|
// This lexer is derived from the one written for the texwork environment (1999++) which in
|
|
// turn is inspired on texedit (1991++) which finds its roots in wdt (1986).
|
|
|
|
#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;
|
|
|
|
// val SCE_METAPOST_DEFAULT = 0
|
|
// val SCE_METAPOST_SPECIAL = 1
|
|
// val SCE_METAPOST_GROUP = 2
|
|
// val SCE_METAPOST_SYMBOL = 3
|
|
// val SCE_METAPOST_COMMAND = 4
|
|
// val SCE_METAPOST_TEXT = 5
|
|
|
|
// Definitions in SciTEGlobal.properties:
|
|
//
|
|
// Metapost Highlighting
|
|
//
|
|
// # Default
|
|
// style.metapost.0=fore:#7F7F00
|
|
// # Special
|
|
// style.metapost.1=fore:#007F7F
|
|
// # Group
|
|
// style.metapost.2=fore:#880000
|
|
// # Symbol
|
|
// style.metapost.3=fore:#7F7F00
|
|
// # Command
|
|
// style.metapost.4=fore:#008800
|
|
// # Text
|
|
// style.metapost.5=fore:#000000
|
|
|
|
// lexer.tex.comment.process=0
|
|
|
|
// Auxiliary functions:
|
|
|
|
static inline bool endOfLine(Accessor &styler, Sci_PositionU i) {
|
|
return
|
|
(styler[i] == '\n') || ((styler[i] == '\r') && (styler.SafeGetCharAt(i + 1) != '\n')) ;
|
|
}
|
|
|
|
static inline bool isMETAPOSTcomment(int ch) {
|
|
return
|
|
(ch == '%') ;
|
|
}
|
|
|
|
static inline bool isMETAPOSTone(int ch) {
|
|
return
|
|
(ch == '[') || (ch == ']') || (ch == '(') || (ch == ')') ||
|
|
(ch == ':') || (ch == '=') || (ch == '<') || (ch == '>') ||
|
|
(ch == '{') || (ch == '}') || (ch == '\'') || (ch == '\"') ;
|
|
}
|
|
|
|
static inline bool isMETAPOSTtwo(int ch) {
|
|
return
|
|
(ch == ';') || (ch == '$') || (ch == '@') || (ch == '#');
|
|
}
|
|
|
|
static inline bool isMETAPOSTthree(int ch) {
|
|
return
|
|
(ch == '.') || (ch == '-') || (ch == '+') || (ch == '/') ||
|
|
(ch == '*') || (ch == ',') || (ch == '|') || (ch == '`') ||
|
|
(ch == '!') || (ch == '?') || (ch == '^') || (ch == '&') ||
|
|
(ch == '%') ;
|
|
}
|
|
|
|
static inline bool isMETAPOSTidentifier(int ch) {
|
|
return
|
|
((ch >= 'a') && (ch <= 'z')) || ((ch >= 'A') && (ch <= 'Z')) ||
|
|
(ch == '_') ;
|
|
}
|
|
|
|
static inline bool isMETAPOSTnumber(int ch) {
|
|
return
|
|
(ch >= '0') && (ch <= '9') ;
|
|
}
|
|
|
|
static inline bool isMETAPOSTstring(int ch) {
|
|
return
|
|
(ch == '\"') ;
|
|
}
|
|
|
|
static inline bool isMETAPOSTcolon(int ch) {
|
|
return
|
|
(ch == ':') ;
|
|
}
|
|
|
|
static inline bool isMETAPOSTequal(int ch) {
|
|
return
|
|
(ch == '=') ;
|
|
}
|
|
|
|
static int CheckMETAPOSTInterface(
|
|
Sci_PositionU startPos,
|
|
Sci_Position length,
|
|
Accessor &styler,
|
|
int defaultInterface) {
|
|
|
|
char lineBuffer[1024] ;
|
|
Sci_PositionU linePos = 0 ;
|
|
|
|
// some day we can make something lexer.metapost.mapping=(none,0)(metapost,1)(mp,1)(metafun,2)...
|
|
|
|
if (styler.SafeGetCharAt(0) == '%') {
|
|
for (Sci_PositionU i = 0; i < startPos + length; i++) {
|
|
lineBuffer[linePos++] = styler.SafeGetCharAt(i) ;
|
|
if (endOfLine(styler, i) || (linePos >= sizeof(lineBuffer) - 1)) {
|
|
lineBuffer[linePos] = '\0';
|
|
if (strstr(lineBuffer, "interface=none")) {
|
|
return 0 ;
|
|
} else if (strstr(lineBuffer, "interface=metapost") || strstr(lineBuffer, "interface=mp")) {
|
|
return 1 ;
|
|
} else if (strstr(lineBuffer, "interface=metafun")) {
|
|
return 2 ;
|
|
} else if (styler.SafeGetCharAt(1) == 'D' && strstr(lineBuffer, "%D \\module")) {
|
|
// better would be to limit the search to just one line
|
|
return 2 ;
|
|
} else {
|
|
return defaultInterface ;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return defaultInterface ;
|
|
}
|
|
|
|
static void ColouriseMETAPOSTDoc(
|
|
Sci_PositionU startPos,
|
|
Sci_Position length,
|
|
int,
|
|
WordList *keywordlists[],
|
|
Accessor &styler) {
|
|
|
|
styler.StartAt(startPos) ;
|
|
styler.StartSegment(startPos) ;
|
|
|
|
bool processComment = styler.GetPropertyInt("lexer.metapost.comment.process", 0) == 1 ;
|
|
int defaultInterface = styler.GetPropertyInt("lexer.metapost.interface.default", 1) ;
|
|
|
|
int currentInterface = CheckMETAPOSTInterface(startPos,length,styler,defaultInterface) ;
|
|
|
|
// 0 no keyword highlighting
|
|
// 1 metapost keyword hightlighting
|
|
// 2+ metafun keyword hightlighting
|
|
|
|
int extraInterface = 0 ;
|
|
|
|
if (currentInterface != 0) {
|
|
extraInterface = currentInterface ;
|
|
}
|
|
|
|
WordList &keywords = *keywordlists[0] ;
|
|
WordList &keywords2 = *keywordlists[extraInterface-1] ;
|
|
|
|
StyleContext sc(startPos, length, SCE_METAPOST_TEXT, styler) ;
|
|
|
|
char key[100] ;
|
|
|
|
bool inTeX = false ;
|
|
bool inComment = false ;
|
|
bool inString = false ;
|
|
bool inClause = false ;
|
|
|
|
bool going = sc.More() ; // needed because of a fuzzy end of file state
|
|
|
|
for (; going; sc.Forward()) {
|
|
|
|
if (! sc.More()) { going = false ; } // we need to go one behind the end of text
|
|
|
|
if (inClause) {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
inClause = false ;
|
|
}
|
|
|
|
if (inComment) {
|
|
if (sc.atLineEnd) {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
inTeX = false ;
|
|
inComment = false ;
|
|
inClause = false ;
|
|
inString = false ; // not correct but we want to stimulate one-lines
|
|
}
|
|
} else if (inString) {
|
|
if (isMETAPOSTstring(sc.ch)) {
|
|
sc.SetState(SCE_METAPOST_SPECIAL) ;
|
|
sc.ForwardSetState(SCE_METAPOST_TEXT) ;
|
|
inString = false ;
|
|
} else if (sc.atLineEnd) {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
inTeX = false ;
|
|
inComment = false ;
|
|
inClause = false ;
|
|
inString = false ; // not correct but we want to stimulate one-lines
|
|
}
|
|
} else {
|
|
if ((! isMETAPOSTidentifier(sc.ch)) && (sc.LengthCurrent() > 0)) {
|
|
if (sc.state == SCE_METAPOST_COMMAND) {
|
|
sc.GetCurrent(key, sizeof(key)) ;
|
|
if ((strcmp(key,"btex") == 0) || (strcmp(key,"verbatimtex") == 0)) {
|
|
sc.ChangeState(SCE_METAPOST_GROUP) ;
|
|
inTeX = true ;
|
|
} else if (inTeX) {
|
|
if (strcmp(key,"etex") == 0) {
|
|
sc.ChangeState(SCE_METAPOST_GROUP) ;
|
|
inTeX = false ;
|
|
} else {
|
|
sc.ChangeState(SCE_METAPOST_TEXT) ;
|
|
}
|
|
} else {
|
|
if (keywords && keywords.InList(key)) {
|
|
sc.ChangeState(SCE_METAPOST_COMMAND) ;
|
|
} else if (keywords2 && keywords2.InList(key)) {
|
|
sc.ChangeState(SCE_METAPOST_EXTRA) ;
|
|
} else {
|
|
sc.ChangeState(SCE_METAPOST_TEXT) ;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (isMETAPOSTcomment(sc.ch)) {
|
|
if (! inTeX) {
|
|
sc.SetState(SCE_METAPOST_SYMBOL) ;
|
|
sc.ForwardSetState(SCE_METAPOST_DEFAULT) ;
|
|
inComment = ! processComment ;
|
|
} else {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
}
|
|
} else if (isMETAPOSTstring(sc.ch)) {
|
|
if (! inTeX) {
|
|
sc.SetState(SCE_METAPOST_SPECIAL) ;
|
|
if (! isMETAPOSTstring(sc.chNext)) {
|
|
sc.ForwardSetState(SCE_METAPOST_TEXT) ;
|
|
}
|
|
inString = true ;
|
|
} else {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
}
|
|
} else if (isMETAPOSTcolon(sc.ch)) {
|
|
if (! inTeX) {
|
|
if (! isMETAPOSTequal(sc.chNext)) {
|
|
sc.SetState(SCE_METAPOST_COMMAND) ;
|
|
inClause = true ;
|
|
} else {
|
|
sc.SetState(SCE_METAPOST_SPECIAL) ;
|
|
}
|
|
} else {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
}
|
|
} else if (isMETAPOSTone(sc.ch)) {
|
|
if (! inTeX) {
|
|
sc.SetState(SCE_METAPOST_SPECIAL) ;
|
|
} else {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
}
|
|
} else if (isMETAPOSTtwo(sc.ch)) {
|
|
if (! inTeX) {
|
|
sc.SetState(SCE_METAPOST_GROUP) ;
|
|
} else {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
}
|
|
} else if (isMETAPOSTthree(sc.ch)) {
|
|
if (! inTeX) {
|
|
sc.SetState(SCE_METAPOST_SYMBOL) ;
|
|
} else {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
}
|
|
} else if (isMETAPOSTidentifier(sc.ch)) {
|
|
if (sc.state != SCE_METAPOST_COMMAND) {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
sc.ChangeState(SCE_METAPOST_COMMAND) ;
|
|
}
|
|
} else if (isMETAPOSTnumber(sc.ch)) {
|
|
// rather redundant since for the moment we don't handle numbers
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
} else if (sc.atLineEnd) {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
inTeX = false ;
|
|
inComment = false ;
|
|
inClause = false ;
|
|
inString = false ;
|
|
} else {
|
|
sc.SetState(SCE_METAPOST_TEXT) ;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
sc.Complete();
|
|
|
|
}
|
|
|
|
// Hooks info the system:
|
|
|
|
static const char * const metapostWordListDesc[] = {
|
|
"MetaPost",
|
|
"MetaFun",
|
|
0
|
|
} ;
|
|
|
|
static int classifyFoldPointMetapost(const char* s,WordList *keywordlists[]) {
|
|
WordList& keywordsStart=*keywordlists[3];
|
|
WordList& keywordsStop1=*keywordlists[4];
|
|
|
|
if (keywordsStart.InList(s)) {return 1;}
|
|
else if (keywordsStop1.InList(s)) {return -1;}
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int ParseMetapostWord(Sci_PositionU pos, Accessor &styler, char *word)
|
|
{
|
|
int length=0;
|
|
char ch=styler.SafeGetCharAt(pos);
|
|
*word=0;
|
|
|
|
while(isMETAPOSTidentifier(ch) && isalpha(ch) && length<100){
|
|
word[length]=ch;
|
|
length++;
|
|
ch=styler.SafeGetCharAt(pos+length);
|
|
}
|
|
word[length]=0;
|
|
return length;
|
|
}
|
|
|
|
static void FoldMetapostDoc(Sci_PositionU startPos, Sci_Position length, int, WordList *keywordlists[], Accessor &styler)
|
|
{
|
|
bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
|
|
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];
|
|
|
|
char buffer[100]="";
|
|
|
|
for (Sci_PositionU i=startPos; i < endPos; i++) {
|
|
char ch=chNext;
|
|
chNext=styler.SafeGetCharAt(i+1);
|
|
char chPrev=styler.SafeGetCharAt(i-1);
|
|
bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
|
|
|
|
if(i==0 || chPrev == '\r' || chPrev=='\n'|| chPrev==' '|| chPrev=='(' || chPrev=='$')
|
|
{
|
|
ParseMetapostWord(i, styler, buffer);
|
|
levelCurrent += classifyFoldPointMetapost(buffer,keywordlists);
|
|
}
|
|
|
|
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 lmMETAPOST(SCLEX_METAPOST, ColouriseMETAPOSTDoc, "metapost", FoldMetapostDoc, metapostWordListDesc);
|