cb7806e94c
[BUG_FIXED] (Author: Dave Brotherstone) Fix scintilla crash bug while closing a document. git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1104 f5eea248-9336-0410-98b8-ebc06183d4e3
307 lines
9.9 KiB
C++
307 lines
9.9 KiB
C++
// Scintilla source code edit control
|
|
/** @file LexMatlab.cxx
|
|
** Lexer for Matlab.
|
|
** Written by José Fonseca
|
|
**
|
|
** Changes by Christoph Dalitz 2003/12/04:
|
|
** - added support for Octave
|
|
** - Strings can now be included both in single or double quotes
|
|
**
|
|
** Changes by John Donoghue 2012/04/02
|
|
** - added block comment (and nested block comments)
|
|
** - added ... displayed as a comment
|
|
** - removed unused IsAWord functions
|
|
** - added some comments
|
|
**/
|
|
// Copyright 1998-2001 by Neil Hodgson <neilh@scintilla.org>
|
|
// 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 bool IsMatlabCommentChar(int c) {
|
|
return (c == '%') ;
|
|
}
|
|
|
|
static bool IsOctaveCommentChar(int c) {
|
|
return (c == '%' || c == '#') ;
|
|
}
|
|
|
|
static bool IsMatlabComment(Accessor &styler, int pos, int len) {
|
|
return len > 0 && IsMatlabCommentChar(styler[pos]) ;
|
|
}
|
|
|
|
static bool IsOctaveComment(Accessor &styler, int pos, int len) {
|
|
return len > 0 && IsOctaveCommentChar(styler[pos]) ;
|
|
}
|
|
|
|
static void ColouriseMatlabOctaveDoc(
|
|
unsigned int startPos, int length, int initStyle,
|
|
WordList *keywordlists[], Accessor &styler,
|
|
bool (*IsCommentChar)(int)) {
|
|
|
|
WordList &keywords = *keywordlists[0];
|
|
|
|
styler.StartAt(startPos);
|
|
|
|
// boolean for when the ' is allowed to be transpose vs the start/end
|
|
// of a string
|
|
bool transpose = false;
|
|
|
|
// approximate position of first non space character in a line
|
|
int nonSpaceColumn = -1;
|
|
// approximate column position of the current character in a line
|
|
int column = 0;
|
|
|
|
// use the line state of each line to store the block comment depth
|
|
int curLine = styler.GetLine(startPos);
|
|
int commentDepth = curLine > 0 ? styler.GetLineState(curLine-1) : 0;
|
|
|
|
|
|
StyleContext sc(startPos, length, initStyle, styler);
|
|
|
|
for (; sc.More(); sc.Forward(), column++) {
|
|
|
|
if(sc.atLineStart) {
|
|
// set the line state to the current commentDepth
|
|
curLine = styler.GetLine(sc.currentPos);
|
|
styler.SetLineState(curLine, commentDepth);
|
|
|
|
// reset the column to 0, nonSpace to -1 (not set)
|
|
column = 0;
|
|
nonSpaceColumn = -1;
|
|
}
|
|
|
|
// save the column position of first non space character in a line
|
|
if((nonSpaceColumn == -1) && (! IsASpace(sc.ch)))
|
|
{
|
|
nonSpaceColumn = column;
|
|
}
|
|
|
|
// check for end of states
|
|
if (sc.state == SCE_MATLAB_OPERATOR) {
|
|
if (sc.chPrev == '.') {
|
|
if (sc.ch == '*' || sc.ch == '/' || sc.ch == '\\' || sc.ch == '^') {
|
|
sc.ForwardSetState(SCE_MATLAB_DEFAULT);
|
|
transpose = false;
|
|
} else if (sc.ch == '\'') {
|
|
sc.ForwardSetState(SCE_MATLAB_DEFAULT);
|
|
transpose = true;
|
|
} else if(sc.ch == '.' && sc.chNext == '.') {
|
|
// we werent an operator, but a '...'
|
|
sc.ChangeState(SCE_MATLAB_COMMENT);
|
|
transpose = false;
|
|
} else {
|
|
sc.SetState(SCE_MATLAB_DEFAULT);
|
|
}
|
|
} else {
|
|
sc.SetState(SCE_MATLAB_DEFAULT);
|
|
}
|
|
} else if (sc.state == SCE_MATLAB_KEYWORD) {
|
|
if (!isalnum(sc.ch) && sc.ch != '_') {
|
|
char s[100];
|
|
sc.GetCurrentLowered(s, sizeof(s));
|
|
if (keywords.InList(s)) {
|
|
sc.SetState(SCE_MATLAB_DEFAULT);
|
|
transpose = false;
|
|
} else {
|
|
sc.ChangeState(SCE_MATLAB_IDENTIFIER);
|
|
sc.SetState(SCE_MATLAB_DEFAULT);
|
|
transpose = true;
|
|
}
|
|
}
|
|
} else if (sc.state == SCE_MATLAB_NUMBER) {
|
|
if (!isdigit(sc.ch) && sc.ch != '.'
|
|
&& !(sc.ch == 'e' || sc.ch == 'E')
|
|
&& !((sc.ch == '+' || sc.ch == '-') && (sc.chPrev == 'e' || sc.chPrev == 'E'))) {
|
|
sc.SetState(SCE_MATLAB_DEFAULT);
|
|
transpose = true;
|
|
}
|
|
} else if (sc.state == SCE_MATLAB_STRING) {
|
|
if (sc.ch == '\'') {
|
|
if (sc.chNext == '\'') {
|
|
sc.Forward();
|
|
} else {
|
|
sc.ForwardSetState(SCE_MATLAB_DEFAULT);
|
|
}
|
|
}
|
|
} else if (sc.state == SCE_MATLAB_DOUBLEQUOTESTRING) {
|
|
if (sc.ch == '\\') {
|
|
if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
|
|
sc.Forward();
|
|
}
|
|
} else if (sc.ch == '\"') {
|
|
sc.ForwardSetState(SCE_MATLAB_DEFAULT);
|
|
}
|
|
} else if (sc.state == SCE_MATLAB_COMMAND) {
|
|
if (sc.atLineEnd) {
|
|
sc.SetState(SCE_MATLAB_DEFAULT);
|
|
transpose = false;
|
|
}
|
|
} else if (sc.state == SCE_MATLAB_COMMENT) {
|
|
// end or start of a nested a block comment?
|
|
if( IsCommentChar(sc.ch) && sc.chNext == '}' && nonSpaceColumn == column) {
|
|
if(commentDepth > 0) commentDepth --;
|
|
|
|
curLine = styler.GetLine(sc.currentPos);
|
|
styler.SetLineState(curLine, commentDepth);
|
|
sc.Forward();
|
|
|
|
if (commentDepth == 0) {
|
|
sc.ForwardSetState(SCE_D_DEFAULT);
|
|
transpose = false;
|
|
}
|
|
}
|
|
else if( IsCommentChar(sc.ch) && sc.chNext == '{' && nonSpaceColumn == column)
|
|
{
|
|
commentDepth ++;
|
|
|
|
curLine = styler.GetLine(sc.currentPos);
|
|
styler.SetLineState(curLine, commentDepth);
|
|
sc.Forward();
|
|
transpose = false;
|
|
|
|
} else if(commentDepth == 0) {
|
|
// single line comment
|
|
if (sc.atLineEnd || sc.ch == '\r' || sc.ch == '\n') {
|
|
sc.SetState(SCE_MATLAB_DEFAULT);
|
|
transpose = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// check start of a new state
|
|
if (sc.state == SCE_MATLAB_DEFAULT) {
|
|
if (IsCommentChar(sc.ch)) {
|
|
// ncrement depth if we are a block comment
|
|
if(sc.chNext == '{' && nonSpaceColumn == column)
|
|
commentDepth ++;
|
|
curLine = styler.GetLine(sc.currentPos);
|
|
styler.SetLineState(curLine, commentDepth);
|
|
sc.SetState(SCE_MATLAB_COMMENT);
|
|
} else if (sc.ch == '!' && sc.chNext != '=' ) {
|
|
sc.SetState(SCE_MATLAB_COMMAND);
|
|
} else if (sc.ch == '\'') {
|
|
if (transpose) {
|
|
sc.SetState(SCE_MATLAB_OPERATOR);
|
|
} else {
|
|
sc.SetState(SCE_MATLAB_STRING);
|
|
}
|
|
} else if (sc.ch == '"') {
|
|
sc.SetState(SCE_MATLAB_DOUBLEQUOTESTRING);
|
|
} else if (isdigit(sc.ch) || (sc.ch == '.' && isdigit(sc.chNext))) {
|
|
sc.SetState(SCE_MATLAB_NUMBER);
|
|
} else if (isalpha(sc.ch)) {
|
|
sc.SetState(SCE_MATLAB_KEYWORD);
|
|
} else if (isoperator(static_cast<char>(sc.ch)) || sc.ch == '@' || sc.ch == '\\') {
|
|
if (sc.ch == ')' || sc.ch == ']') {
|
|
transpose = true;
|
|
} else {
|
|
transpose = false;
|
|
}
|
|
sc.SetState(SCE_MATLAB_OPERATOR);
|
|
} else {
|
|
transpose = false;
|
|
}
|
|
}
|
|
}
|
|
sc.Complete();
|
|
}
|
|
|
|
static void ColouriseMatlabDoc(unsigned int startPos, int length, int initStyle,
|
|
WordList *keywordlists[], Accessor &styler) {
|
|
ColouriseMatlabOctaveDoc(startPos, length, initStyle, keywordlists, styler, IsMatlabCommentChar);
|
|
}
|
|
|
|
static void ColouriseOctaveDoc(unsigned int startPos, int length, int initStyle,
|
|
WordList *keywordlists[], Accessor &styler) {
|
|
ColouriseMatlabOctaveDoc(startPos, length, initStyle, keywordlists, styler, IsOctaveCommentChar);
|
|
}
|
|
|
|
static void FoldMatlabOctaveDoc(unsigned int startPos, int length, int,
|
|
WordList *[], Accessor &styler,
|
|
bool (*IsComment)(Accessor&, int, int)) {
|
|
|
|
int endPos = startPos + length;
|
|
|
|
// Backtrack to previous line in case need to fix its fold status
|
|
int lineCurrent = styler.GetLine(startPos);
|
|
if (startPos > 0) {
|
|
if (lineCurrent > 0) {
|
|
lineCurrent--;
|
|
startPos = styler.LineStart(lineCurrent);
|
|
}
|
|
}
|
|
int spaceFlags = 0;
|
|
int indentCurrent = styler.IndentAmount(lineCurrent, &spaceFlags, IsComment);
|
|
char chNext = styler[startPos];
|
|
for (int i = startPos; i < endPos; i++) {
|
|
char ch = chNext;
|
|
chNext = styler.SafeGetCharAt(i + 1);
|
|
|
|
if ((ch == '\r' && chNext != '\n') || (ch == '\n') || (i == endPos)) {
|
|
int lev = indentCurrent;
|
|
int indentNext = styler.IndentAmount(lineCurrent + 1, &spaceFlags, IsComment);
|
|
if (!(indentCurrent & SC_FOLDLEVELWHITEFLAG)) {
|
|
// Only non whitespace lines can be headers
|
|
if ((indentCurrent & SC_FOLDLEVELNUMBERMASK) < (indentNext & SC_FOLDLEVELNUMBERMASK)) {
|
|
lev |= SC_FOLDLEVELHEADERFLAG;
|
|
} else if (indentNext & SC_FOLDLEVELWHITEFLAG) {
|
|
// Line after is blank so check the next - maybe should continue further?
|
|
int spaceFlags2 = 0;
|
|
int indentNext2 = styler.IndentAmount(lineCurrent + 2, &spaceFlags2, IsComment);
|
|
if ((indentCurrent & SC_FOLDLEVELNUMBERMASK) < (indentNext2 & SC_FOLDLEVELNUMBERMASK)) {
|
|
lev |= SC_FOLDLEVELHEADERFLAG;
|
|
}
|
|
}
|
|
}
|
|
indentCurrent = indentNext;
|
|
styler.SetLevel(lineCurrent, lev);
|
|
lineCurrent++;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void FoldMatlabDoc(unsigned int startPos, int length, int initStyle,
|
|
WordList *keywordlists[], Accessor &styler) {
|
|
FoldMatlabOctaveDoc(startPos, length, initStyle, keywordlists, styler, IsMatlabComment);
|
|
}
|
|
|
|
static void FoldOctaveDoc(unsigned int startPos, int length, int initStyle,
|
|
WordList *keywordlists[], Accessor &styler) {
|
|
FoldMatlabOctaveDoc(startPos, length, initStyle, keywordlists, styler, IsOctaveComment);
|
|
}
|
|
|
|
static const char * const matlabWordListDesc[] = {
|
|
"Keywords",
|
|
0
|
|
};
|
|
|
|
static const char * const octaveWordListDesc[] = {
|
|
"Keywords",
|
|
0
|
|
};
|
|
|
|
LexerModule lmMatlab(SCLEX_MATLAB, ColouriseMatlabDoc, "matlab", FoldMatlabDoc, matlabWordListDesc);
|
|
|
|
LexerModule lmOctave(SCLEX_OCTAVE, ColouriseOctaveDoc, "octave", FoldOctaveDoc, octaveWordListDesc);
|