notepad-plus-plus/lexilla/lexlib/LexerModule.cxx
Christian Grasser a61b03ea88 Update Scintilla from v4.4.6 to v5.2.1 and add Lexilla v5.1.5
Update with https://www.scintilla.org/scintilla521.zip
            https://www.scintilla.org/lexilla515.zip

- fix setting to bring Scintilla::PositionCR from ScintillaStructures.h inline with Sci_Position.h Sci_PositionCR
- add workaround to enable lexer for searchResult
commented out SCI_SETILEXER call on searchResult to get one result which is correctly handled by the lexer,
added comment about the current problem with property @MarkingsStruct which seems to disappear after call to SCI_SETILEXER or CreateLexer
- corrected usage of ObjC lexer
- removed unnecessary filter stuff
- use own sections for scintilla and lexilla build targets and allow parallel builds
- as libscilex is no longer existing, changed to libscintilla
- adapt makefiles and cmake
- use VS2019
- started simple changes for createlexer adaptations, nullpointercheck missing on return of lexer name from deprecated LexerNameFromID -> undefined behaviour
- movement from id -> lexer name, mostly done via LexerNameFromID + switching off corresponding compiler warning
- changed to SCI_SETILEXER from SCI_SETLEXER, SCI_SETLEXERLANGUAGE needs to be corrected, see Scintilla5Migration.html
- just commented out: SCI_LOADLEXERLIBRARY

Fix #10504, close #11419
2022-03-27 17:12:53 +02:00

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.StyleAt(startPos - 1);
}
}
fnFolder(startPos, lengthDoc, initStyle, keywordlists, styler);
}
}