CatalogueModules.h

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// Scintilla source code edit control
/** @file CatalogueModules.h
 ** Lexer infrastructure.
 ** Contains a list of LexerModules which can be searched to find a module appropriate for a
 ** particular language.
 **/
// Copyright 1998-2010 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
 
#ifndef CATALOGUEMODULES_H
#define CATALOGUEMODULES_H
 
namespace Scintilla {
 
class CatalogueModules {
    std::vector<LexerModule *> lexerCatalogue;
public:
    const LexerModule *Find(int language) const {
        for (const LexerModule *lm : lexerCatalogue) {
            if (lm->GetLanguage() == language) {
                return lm;
            }
        }
        return nullptr;
    }
 
    const LexerModule *Find(const char *languageName) const noexcept {
        if (languageName) {
            for (const LexerModule *lm : lexerCatalogue) {
                if (lm->languageName && (0 == strcmp(lm->languageName, languageName))) {
                    return lm;
                }
            }
        }
        return nullptr;
    }
 
    void AddLexerModule(LexerModule *plm) {
        lexerCatalogue.push_back(plm);
    }
 
    unsigned int Count() const noexcept {
        return static_cast<unsigned int>(lexerCatalogue.size());
    }
 
    const char *Name(unsigned int index) const noexcept {
        if (index < static_cast<unsigned int>(lexerCatalogue.size())) {
            return lexerCatalogue[index]->languageName;
        } else {
            return "";
        }
    }
 
    LexerFactoryFunction Factory(unsigned int index) const noexcept {
        // Works for object lexers but not for function lexers
        return lexerCatalogue[index]->fnFactory;
    }
 
    ILexer *Create(unsigned int index) const {
        const LexerModule *plm = lexerCatalogue[index];
        if (!plm) {
            return nullptr;
        }
        return plm->Create();
    }
};
 
}
 
#endif