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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
#else
#define EXT_LEXER_DECL
#endif
#ifdef SCI_NAMESPACE
namespace Scintilla {
#endif
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);
typedef LexerFactoryFunction(EXT_LEXER_DECL *GetLexerFactoryFunction)(unsigned int Index);
/// Sub-class of LexerModule to use an external lexer.
class ExternalLexerModule : public LexerModule {
protected:
GetLexerFactoryFunction fneFactory;
char name[100];
public:
ExternalLexerModule(int language_, LexerFunction fnLexer_,
const char *languageName_=0, LexerFunction fnFolder_=0) :
LexerModule(language_, fnLexer_, 0, fnFolder_),
fneFactory(0) {
strncpy(name, languageName_, sizeof(name));
name[sizeof(name)-1] = '\0';
languageName = name;
}
virtual void SetExternal(GetLexerFactoryFunction fFactory, 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;
std::string 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();
};
#ifdef SCI_NAMESPACE
}
#endif
#endif
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