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88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
// Scintilla source code edit control
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/** @file LexerModule.h
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** Colourise for particular languages.
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**/
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// Copyright 1998-2001 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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#ifndef LEXERMODULE_H
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#define LEXERMODULE_H
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namespace Scintilla {
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class Accessor;
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class WordList;
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struct LexicalClass;
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typedef void (*LexerFunction)(Sci_PositionU startPos, Sci_Position lengthDoc, int initStyle,
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WordList *keywordlists[], Accessor &styler);
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typedef ILexer4 *(*LexerFactoryFunction)();
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/**
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* A LexerModule is responsible for lexing and folding a particular language.
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* The Catalogue class maintains a list of LexerModules which can be searched to find a
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* module appropriate to a particular language.
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* The ExternalLexerModule subclass holds lexers loaded from DLLs or shared libraries.
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*/
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class LexerModule {
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protected:
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int language;
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LexerFunction fnLexer;
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LexerFunction fnFolder;
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LexerFactoryFunction fnFactory;
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const char * const * wordListDescriptions;
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const LexicalClass *lexClasses;
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size_t nClasses;
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public:
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const char *languageName;
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LexerModule(
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int language_,
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LexerFunction fnLexer_,
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const char *languageName_=nullptr,
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LexerFunction fnFolder_= nullptr,
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const char * const wordListDescriptions_[]=nullptr,
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const LexicalClass *lexClasses_=nullptr,
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size_t nClasses_=0);
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LexerModule(
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int language_,
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LexerFactoryFunction fnFactory_,
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const char *languageName_,
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const char * const wordListDescriptions_[]=nullptr);
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virtual ~LexerModule();
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int GetLanguage() const;
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// -1 is returned if no WordList information is available
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int GetNumWordLists() const;
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const char *GetWordListDescription(int index) const;
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const LexicalClass *LexClasses() const;
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size_t NamedStyles() const;
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ILexer4 *Create() const;
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virtual void Lex(Sci_PositionU startPos, Sci_Position lengthDoc, int initStyle,
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WordList *keywordlists[], Accessor &styler) const;
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virtual void Fold(Sci_PositionU startPos, Sci_Position lengthDoc, int initStyle,
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WordList *keywordlists[], Accessor &styler) const;
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friend class Catalogue;
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};
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inline int Maximum(int a, int b) {
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return (a > b) ? a : b;
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}
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// Shut up annoying Visual C++ warnings:
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#ifdef _MSC_VER
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#pragma warning(disable: 4244 4456 4457)
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#endif
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// Turn off shadow warnings for lexers as may be maintained by others
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#if defined(__GNUC__)
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#pragma GCC diagnostic ignored "-Wshadow"
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#endif
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}
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#endif
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