157 lines
3.2 KiB
C++
157 lines
3.2 KiB
C++
// Scintilla source code edit control
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/** @file LexerBase.cxx
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** A simple lexer with no state.
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**/
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// Copyright 1998-2010 by Neil Hodgson <neilh@scintilla.org>
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// The License.txt file describes the conditions under which this software may be distributed.
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#include <cstdlib>
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#include <cassert>
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#include <cstring>
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#include <string>
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#include <string_view>
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#include "ILexer.h"
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#include "Scintilla.h"
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#include "SciLexer.h"
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#include "PropSetSimple.h"
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#include "WordList.h"
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#include "LexAccessor.h"
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#include "Accessor.h"
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#include "LexerModule.h"
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#include "LexerBase.h"
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using namespace Lexilla;
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static const char styleSubable[] = { 0 };
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LexerBase::LexerBase(const LexicalClass *lexClasses_, size_t nClasses_) :
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lexClasses(lexClasses_), nClasses(nClasses_) {
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for (int wl = 0; wl < numWordLists; wl++)
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keyWordLists[wl] = new WordList;
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keyWordLists[numWordLists] = nullptr;
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}
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LexerBase::~LexerBase() {
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for (int wl = 0; wl < numWordLists; wl++) {
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delete keyWordLists[wl];
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keyWordLists[wl] = nullptr;
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}
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keyWordLists[numWordLists] = nullptr;
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}
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void SCI_METHOD LexerBase::Release() {
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delete this;
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}
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int SCI_METHOD LexerBase::Version() const {
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return Scintilla::lvRelease5;
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}
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const char * SCI_METHOD LexerBase::PropertyNames() {
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return "";
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}
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int SCI_METHOD LexerBase::PropertyType(const char *) {
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return SC_TYPE_BOOLEAN;
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}
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const char * SCI_METHOD LexerBase::DescribeProperty(const char *) {
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return "";
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}
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Sci_Position SCI_METHOD LexerBase::PropertySet(const char *key, const char *val) {
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if (props.Set(key, val)) {
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return 0;
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} else {
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return -1;
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}
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}
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const char *SCI_METHOD LexerBase::PropertyGet(const char *key) {
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return props.Get(key);
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}
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const char * SCI_METHOD LexerBase::DescribeWordListSets() {
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return "";
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}
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Sci_Position SCI_METHOD LexerBase::WordListSet(int n, const char *wl) {
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if (n < numWordLists) {
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if (keyWordLists[n]->Set(wl)) {
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return 0;
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}
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}
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return -1;
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}
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void * SCI_METHOD LexerBase::PrivateCall(int, void *) {
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return nullptr;
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}
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int SCI_METHOD LexerBase::LineEndTypesSupported() {
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return SC_LINE_END_TYPE_DEFAULT;
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}
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int SCI_METHOD LexerBase::AllocateSubStyles(int, int) {
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return -1;
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}
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int SCI_METHOD LexerBase::SubStylesStart(int) {
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return -1;
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}
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int SCI_METHOD LexerBase::SubStylesLength(int) {
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return 0;
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}
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int SCI_METHOD LexerBase::StyleFromSubStyle(int subStyle) {
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return subStyle;
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}
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int SCI_METHOD LexerBase::PrimaryStyleFromStyle(int style) {
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return style;
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}
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void SCI_METHOD LexerBase::FreeSubStyles() {
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}
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void SCI_METHOD LexerBase::SetIdentifiers(int, const char *) {
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}
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int SCI_METHOD LexerBase::DistanceToSecondaryStyles() {
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return 0;
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}
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const char * SCI_METHOD LexerBase::GetSubStyleBases() {
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return styleSubable;
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}
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int SCI_METHOD LexerBase::NamedStyles() {
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return static_cast<int>(nClasses);
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}
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const char * SCI_METHOD LexerBase::NameOfStyle(int style) {
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return (style < NamedStyles()) ? lexClasses[style].name : "";
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}
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const char * SCI_METHOD LexerBase::TagsOfStyle(int style) {
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return (style < NamedStyles()) ? lexClasses[style].tags : "";
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}
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const char * SCI_METHOD LexerBase::DescriptionOfStyle(int style) {
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return (style < NamedStyles()) ? lexClasses[style].description : "";
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}
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// ILexer5 methods
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const char *SCI_METHOD LexerBase::GetName() {
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return "";
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}
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int SCI_METHOD LexerBase::GetIdentifier() {
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return SCLEX_AUTOMATIC;
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}
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