New files for new lexer implementation.

1 files changed, 82 insertions, 0 deletions

diff --git a/lexlib/LexerModule.h b/lexlib/LexerModule.h
new file mode 100644
index 000000000..e502541b2
--- /dev/null
+++ b/lexlib/LexerModule.h
@@ -0,0 +1,82 @@
+// Scintilla source code edit control
+/** @file LexerModule.h
+ ** Colourise for particular languages.
+ **/
+// Copyright 1998-2001 by Neil Hodgson <neilh@scintilla.org>
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#ifndef LEXERMODULE_H
+#define LEXERMODULE_H
+
+#ifdef SCI_NAMESPACE
+namespace Scintilla {
+#endif
+
+class Accessor;
+class WordList;
+
+typedef void (*LexerFunction)(unsigned int startPos, int lengthDoc, int initStyle,
+                  WordList *keywordlists[], Accessor &styler);
+typedef ILexer *(*LexerFactoryFunction)();
+
+/**
+ * A LexerModule is responsible for lexing and folding a particular language.
+ * The class maintains a list of LexerModules which can be searched to find a
+ * module appropriate to a particular language.
+ */
+class LexerModule {
+protected:
+	int language;
+	LexerFunction fnLexer;
+	LexerFunction fnFolder;
+	LexerFactoryFunction fnFactory;
+	const char * const * wordListDescriptions;
+	int styleBits;
+
+public:
+	const char *languageName;
+	LexerModule(int language_,
+		LexerFunction fnLexer_,
+		const char *languageName_=0,
+		LexerFunction fnFolder_=0,
+		const char * const wordListDescriptions_[] = NULL,
+		int styleBits_=5);
+	LexerModule(int language_,
+		LexerFactoryFunction fnFactory_,
+		const char *languageName_,
+		const char * const wordListDescriptions_[] = NULL,
+		int styleBits_=8);
+	virtual ~LexerModule() {
+	}
+	int GetLanguage() const { return language; }
+
+	// -1 is returned if no WordList information is available
+	int GetNumWordLists() const;
+	const char *GetWordListDescription(int index) const;
+
+	int GetStyleBitsNeeded() const;
+
+	ILexer *Create() const;
+
+	virtual void Lex(unsigned int startPos, int length, int initStyle,
+                  WordList *keywordlists[], Accessor &styler) const;
+	virtual void Fold(unsigned int startPos, int length, int initStyle,
+                  WordList *keywordlists[], Accessor &styler) const;
+
+	friend class Catalogue;
+};
+
+inline int Maximum(int a, int b) {
+	return (a > b) ? a : b;
+}
+
+// Shut up annoying Visual C++ warnings:
+#ifdef _MSC_VER
+#pragma warning(disable: 4244 4309 4514 4710)
+#endif
+
+#ifdef SCI_NAMESPACE
+}
+#endif
+
+#endif