125 lines
3.0 KiB
C++
125 lines
3.0 KiB
C++
|
// Scintilla source code edit control
|
||
|
|
/** @file LexerModule.cxx
|
||
|
|
** Colourise for particular languages.
|
||
|
|
**/
|
||
|
|
// Copyright 1998-2010 by Neil Hodgson <neilh@scintilla.org>
|
||
|
|
// The License.txt file describes the conditions under which this software may be distributed.
|
||
|
|
|
||
|
|
#include <cstdlib>
|
||
|
|
#include <cassert>
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
#include <string_view>
|
||
|
|
|
||
|
|
#include "ILexer.h"
|
||
|
|
#include "Scintilla.h"
|
||
|
|
#include "SciLexer.h"
|
||
|
|
|
||
|
|
#include "PropSetSimple.h"
|
||
|
|
#include "WordList.h"
|
||
|
|
#include "LexAccessor.h"
|
||
|
|
#include "Accessor.h"
|
||
|
|
#include "LexerModule.h"
|
||
|
|
#include "LexerBase.h"
|
||
|
|
#include "LexerSimple.h"
|
||
|
|
|
||
|
|
using namespace Lexilla;
|
||
|
|
|
||
|
|
LexerModule::LexerModule(int language_,
|
||
|
|
LexerFunction fnLexer_,
|
||
|
|
const char *languageName_,
|
||
|
|
LexerFunction fnFolder_,
|
||
|
|
const char *const wordListDescriptions_[],
|
||
|
|
const LexicalClass *lexClasses_,
|
||
|
|
size_t nClasses_) noexcept :
|
||
|
|
language(language_),
|
||
|
|
fnLexer(fnLexer_),
|
||
|
|
fnFolder(fnFolder_),
|
||
|
|
fnFactory(nullptr),
|
||
|
|
wordListDescriptions(wordListDescriptions_),
|
||
|
|
lexClasses(lexClasses_),
|
||
|
|
nClasses(nClasses_),
|
||
|
|
languageName(languageName_) {
|
||
|
|
}
|
||
|
|
|
||
|
|
LexerModule::LexerModule(int language_,
|
||
|
|
LexerFactoryFunction fnFactory_,
|
||
|
|
const char *languageName_,
|
||
|
|
const char * const wordListDescriptions_[]) noexcept :
|
||
|
|
language(language_),
|
||
|
|
fnLexer(nullptr),
|
||
|
|
fnFolder(nullptr),
|
||
|
|
fnFactory(fnFactory_),
|
||
|
|
wordListDescriptions(wordListDescriptions_),
|
||
|
|
lexClasses(nullptr),
|
||
|
|
nClasses(0),
|
||
|
|
languageName(languageName_) {
|
||
|
|
}
|
||
|
|
|
||
|
|
int LexerModule::GetLanguage() const noexcept {
|
||
|
|
return language;
|
||
|
|
}
|
||
|
|
|
||
|
|
int LexerModule::GetNumWordLists() const noexcept {
|
||
|
|
if (!wordListDescriptions) {
|
||
|
|
return -1;
|
||
|
|
} else {
|
||
|
|
int numWordLists = 0;
|
||
|
|
|
||
|
|
while (wordListDescriptions[numWordLists]) {
|
||
|
|
++numWordLists;
|
||
|
|
}
|
||
|
|
|
||
|
|
return numWordLists;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const char *LexerModule::GetWordListDescription(int index) const noexcept {
|
||
|
|
assert(index < GetNumWordLists());
|
||
|
|
if (!wordListDescriptions || (index >= GetNumWordLists())) {
|
||
|
|
return "";
|
||
|
|
} else {
|
||
|
|
return wordListDescriptions[index];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const LexicalClass *LexerModule::LexClasses() const noexcept {
|
||
|
|
return lexClasses;
|
||
|
|
}
|
||
|
|
|
||
|
|
size_t LexerModule::NamedStyles() const noexcept {
|
||
|
|
return nClasses;
|
||
|
|
}
|
||
|
|
|
||
|
|
Scintilla::ILexer5 *LexerModule::Create() const {
|
||
|
|
if (fnFactory)
|
||
|
|
return fnFactory();
|
||
|
|
else
|
||
|
|
return new LexerSimple(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
void LexerModule::Lex(Sci_PositionU startPos, Sci_Position lengthDoc, int initStyle,
|
||
|
|
WordList *keywordlists[], Accessor &styler) const {
|
||
|
|
if (fnLexer)
|
||
|
|
fnLexer(startPos, lengthDoc, initStyle, keywordlists, styler);
|
||
|
|
}
|
||
|
|
|
||
|
|
void LexerModule::Fold(Sci_PositionU startPos, Sci_Position lengthDoc, int initStyle,
|
||
|
|
WordList *keywordlists[], Accessor &styler) const {
|
||
|
|
if (fnFolder) {
|
||
|
|
Sci_Position lineCurrent = styler.GetLine(startPos);
|
||
|
|
// Move back one line in case deletion wrecked current line fold state
|
||
|
|
if (lineCurrent > 0) {
|
||
|
|
lineCurrent--;
|
||
|
|
const Sci_Position newStartPos = styler.LineStart(lineCurrent);
|
||
|
|
lengthDoc += startPos - newStartPos;
|
||
|
|
startPos = newStartPos;
|
||
|
|
initStyle = 0;
|
||
|
|
if (startPos > 0) {
|
||
|
|
initStyle = styler.StyleIndexAt(startPos - 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fnFolder(startPos, lengthDoc, initStyle, keywordlists, styler);
|
||
|
|
}
|
||
|
|
}
|