notepad-plus-plus/lexilla/lexlib/LexerBase.cxx

157 lines
3.2 KiB
C++

// Scintilla source code edit control
/** @file LexerBase.cxx
** A simple lexer with no state.
**/
// 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 <cstring>
#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"
using namespace Lexilla;
static const char styleSubable[] = { 0 };
LexerBase::LexerBase(const LexicalClass *lexClasses_, size_t nClasses_) :
lexClasses(lexClasses_), nClasses(nClasses_) {
for (int wl = 0; wl < numWordLists; wl++)
keyWordLists[wl] = new WordList;
keyWordLists[numWordLists] = nullptr;
}
LexerBase::~LexerBase() {
for (int wl = 0; wl < numWordLists; wl++) {
delete keyWordLists[wl];
keyWordLists[wl] = nullptr;
}
keyWordLists[numWordLists] = nullptr;
}
void SCI_METHOD LexerBase::Release() {
delete this;
}
int SCI_METHOD LexerBase::Version() const {
return Scintilla::lvRelease5;
}
const char * SCI_METHOD LexerBase::PropertyNames() {
return "";
}
int SCI_METHOD LexerBase::PropertyType(const char *) {
return SC_TYPE_BOOLEAN;
}
const char * SCI_METHOD LexerBase::DescribeProperty(const char *) {
return "";
}
Sci_Position SCI_METHOD LexerBase::PropertySet(const char *key, const char *val) {
if (props.Set(key, val)) {
return 0;
} else {
return -1;
}
}
const char *SCI_METHOD LexerBase::PropertyGet(const char *key) {
return props.Get(key);
}
const char * SCI_METHOD LexerBase::DescribeWordListSets() {
return "";
}
Sci_Position SCI_METHOD LexerBase::WordListSet(int n, const char *wl) {
if (n < numWordLists) {
if (keyWordLists[n]->Set(wl)) {
return 0;
}
}
return -1;
}
void * SCI_METHOD LexerBase::PrivateCall(int, void *) {
return nullptr;
}
int SCI_METHOD LexerBase::LineEndTypesSupported() {
return SC_LINE_END_TYPE_DEFAULT;
}
int SCI_METHOD LexerBase::AllocateSubStyles(int, int) {
return -1;
}
int SCI_METHOD LexerBase::SubStylesStart(int) {
return -1;
}
int SCI_METHOD LexerBase::SubStylesLength(int) {
return 0;
}
int SCI_METHOD LexerBase::StyleFromSubStyle(int subStyle) {
return subStyle;
}
int SCI_METHOD LexerBase::PrimaryStyleFromStyle(int style) {
return style;
}
void SCI_METHOD LexerBase::FreeSubStyles() {
}
void SCI_METHOD LexerBase::SetIdentifiers(int, const char *) {
}
int SCI_METHOD LexerBase::DistanceToSecondaryStyles() {
return 0;
}
const char * SCI_METHOD LexerBase::GetSubStyleBases() {
return styleSubable;
}
int SCI_METHOD LexerBase::NamedStyles() {
return static_cast<int>(nClasses);
}
const char * SCI_METHOD LexerBase::NameOfStyle(int style) {
return (style < NamedStyles()) ? lexClasses[style].name : "";
}
const char * SCI_METHOD LexerBase::TagsOfStyle(int style) {
return (style < NamedStyles()) ? lexClasses[style].tags : "";
}
const char * SCI_METHOD LexerBase::DescriptionOfStyle(int style) {
return (style < NamedStyles()) ? lexClasses[style].description : "";
}
// ILexer5 methods
const char *SCI_METHOD LexerBase::GetName() {
return "";
}
int SCI_METHOD LexerBase::GetIdentifier() {
return SCLEX_AUTOMATIC;
}