first commit

Version 3.x.x

third-party/scintilla/ExternalLexer.h

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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;
+	std::string name;
+public:
+	ExternalLexerModule(int language_, LexerFunction fnLexer_,
+		const char *languageName_=0, LexerFunction fnFolder_=0) :
+		LexerModule(language_, fnLexer_, 0, fnFolder_),
+		fneFactory(0), name(languageName_){
+		languageName = name.c_str();
+	}
+	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;
+	
+	// no copy ctr or assignment op
+	LexerLibrary(const LexerLibrary &);
+	LexerLibrary &operator =(const LexerLibrary &);
+
+public:
+	explicit 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