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// Scintilla source code edit control
/** @file ExternalLexer.h
** Support external lexers in DLLs.
**/
// Copyright 2001 Simon Steele <ss@pnotepad.org>, portions copyright Neil Hodgson.
// The License.txt file describes the conditions under which this software may be distributed.
#ifndef EXTERNALLEXER_H
#define EXTERNALLEXER_H
#if PLAT_WIN
#define EXT_LEXER_DECL __stdcall
#elif PLAT_GTK
#define EXT_LEXER_DECL
#endif
// External Lexer function definitions...
typedef void (EXT_LEXER_DECL *ExtLexerFunction)(unsigned int lexer, unsigned int startPos, int length, int initStyle,
char *words[], WindowID window, char *props);
typedef void (EXT_LEXER_DECL *ExtFoldFunction)(unsigned int lexer, unsigned int startPos, int length, int initStyle,
char *words[], WindowID window, char *props);
typedef void* (EXT_LEXER_DECL *GetLexerFunction)(unsigned int Index);
typedef int (EXT_LEXER_DECL *GetLexerCountFn)();
typedef void (EXT_LEXER_DECL *GetLexerNameFn)(unsigned int Index, char *name, int buflength);
//class DynamicLibrary;
/// Sub-class of LexerModule to use an external lexer.
class ExternalLexerModule : protected LexerModule {
protected:
ExtLexerFunction fneLexer;
ExtFoldFunction fneFolder;
int externalLanguage;
char name[100];
public:
ExternalLexerModule(int language_, LexerFunction fnLexer_,
const char *languageName_=0, LexerFunction fnFolder_=0) : LexerModule(language_, fnLexer_, 0, fnFolder_){
strncpy(name, languageName_, sizeof(name));
languageName = name;
};
virtual void Lex(unsigned int startPos, int lengthDoc, int initStyle,
WordList *keywordlists[], Accessor &styler) const;
virtual void Fold(unsigned int startPos, int lengthDoc, int initStyle,
WordList *keywordlists[], Accessor &styler) const;
virtual void SetExternal(ExtLexerFunction fLexer, ExtFoldFunction fFolder, int index);
};
/// LexerMinder points to an ExternalLexerModule - so we don't leak them.
class LexerMinder {
public:
ExternalLexerModule *self;
LexerMinder *next;
};
/// LexerLibrary exists for every External Lexer DLL, contains LexerMinders.
class LexerLibrary {
DynamicLibrary *lib;
LexerMinder *first;
LexerMinder *last;
public:
LexerLibrary(const char* ModuleName);
~LexerLibrary();
void Release();
LexerLibrary *next;
SString m_sModuleName;
};
/// LexerManager manages external lexers, contains LexerLibrarys.
class LexerManager {
public:
~LexerManager();
static LexerManager *GetInstance();
static void DeleteInstance();
void Load(const char* path);
void Clear();
private:
LexerManager();
static LexerManager *theInstance;
void LoadLexerLibrary(const char* module);
LexerLibrary *first;
LexerLibrary *last;
};
class LMMinder {
public:
~LMMinder();
};
#endif