Method LexerLibrary

scintilla/src/ExternalLexer.cxx:49–99

//------------------------------------------

LexerLibrary::LexerLibrary(const char *ModuleName) {
	// Initialise some members...
	first = NULL;
	last = NULL;

	// Load the DLL
	lib = DynamicLibrary::Load(ModuleName);
	if (lib->IsValid()) {
		m_sModuleName = ModuleName;
		//Cannot use reinterpret_cast because: ANSI C++ forbids casting between pointers to functions and objects
		GetLexerCountFn GetLexerCount = (GetLexerCountFn)(sptr_t)lib->FindFunction("GetLexerCount");

		if (GetLexerCount) {
			ExternalLexerModule *lex;
			LexerMinder *lm;

			// Find functions in the DLL
			GetLexerNameFn GetLexerName = (GetLexerNameFn)(sptr_t)lib->FindFunction("GetLexerName");
			GetLexerFactoryFunction fnFactory = (GetLexerFactoryFunction)(sptr_t)lib->FindFunction("GetLexerFactory");

			// Assign a buffer for the lexer name.
			char lexname[100];
			strcpy(lexname, "");

			int nl = GetLexerCount();

			for (int i = 0; i < nl; i++) {
				GetLexerName(i, lexname, 100);
				lex = new ExternalLexerModule(SCLEX_AUTOMATIC, NULL, lexname, NULL);
				Catalogue::AddLexerModule(lex);

				// Create a LexerMinder so we don't leak the ExternalLexerModule...
				lm = new LexerMinder;
				lm->self = lex;
				lm->next = NULL;
				if (first != NULL) {
					last->next = lm;
					last = lm;
				} else {
					first = lm;
					last = lm;
				}

				// The external lexer needs to know how to call into its DLL to
				// do its lexing and folding, we tell it here.
				lex->SetExternal(fnFactory, i);
			}
		}
	}
	next = NULL;
}

LexerLibrary::~LexerLibrary() {
	Release();