| | 1 | // Scintilla source code edit control |
| | 2 | /** @file LexerModule.h |
| | 3 | ** Colourise for particular languages. |
| | 4 | **/ |
| | 5 | // Copyright 1998-2001 by Neil Hodgson <neilh@scintilla.org> |
| | 6 | // The License.txt file describes the conditions under which this software may be distributed. |
| | 7 | |
| | 8 | #ifndef LEXERMODULE_H |
| | 9 | #define LEXERMODULE_H |
| | 10 | |
| | 11 | #ifdef SCI_NAMESPACE |
| | 12 | namespace Scintilla { |
| | 13 | #endif |
| | 14 | |
| | 15 | class Accessor; |
| | 16 | class WordList; |
| | 17 | |
| | 18 | typedef void (*LexerFunction)(unsigned int startPos, int lengthDoc, int initStyle, |
| | 19 | WordList *keywordlists[], Accessor &styler); |
| | 20 | typedef ILexer *(*LexerFactoryFunction)(); |
| | 21 | |
| | 22 | /** |
| | 23 | * A LexerModule is responsible for lexing and folding a particular language. |
| | 24 | * The class maintains a list of LexerModules which can be searched to find a |
| | 25 | * module appropriate to a particular language. |
| | 26 | */ |
| | 27 | class LexerModule { |
| | 28 | protected: |
| | 29 | int language; |
| | 30 | LexerFunction fnLexer; |
| | 31 | LexerFunction fnFolder; |
| | 32 | LexerFactoryFunction fnFactory; |
| | 33 | const char * const * wordListDescriptions; |
| | 34 | int styleBits; |
| | 35 | |
| | 36 | public: |
| | 37 | const char *languageName; |
| | 38 | LexerModule(int language_, |
| | 39 | LexerFunction fnLexer_, |
| | 40 | const char *languageName_=0, |
| | 41 | LexerFunction fnFolder_=0, |
| | 42 | const char * const wordListDescriptions_[] = NULL, |
| | 43 | int styleBits_=5); |
| | 44 | LexerModule(int language_, |
| | 45 | LexerFactoryFunction fnFactory_, |
| | 46 | const char *languageName_, |
| | 47 | const char * const wordListDescriptions_[] = NULL, |
| | 48 | int styleBits_=8); |
| | 49 | virtual ~LexerModule() { |
| | 50 | } |
| | 51 | int GetLanguage() const { return language; } |
| | 52 | |
| | 53 | // -1 is returned if no WordList information is available |
| | 54 | int GetNumWordLists() const; |
| | 55 | const char *GetWordListDescription(int index) const; |
| | 56 | |
| | 57 | int GetStyleBitsNeeded() const; |
| | 58 | |
| | 59 | ILexer *Create() const; |
| | 60 | |
| | 61 | virtual void Lex(unsigned int startPos, int length, int initStyle, |
| | 62 | WordList *keywordlists[], Accessor &styler) const; |
| | 63 | virtual void Fold(unsigned int startPos, int length, int initStyle, |
| | 64 | WordList *keywordlists[], Accessor &styler) const; |
| | 65 | |
| | 66 | friend class Catalogue; |
| | 67 | }; |
| | 68 | |
| | 69 | inline int Maximum(int a, int b) { |
| | 70 | return (a > b) ? a : b; |
| | 71 | } |
| | 72 | |
| | 73 | // Shut up annoying Visual C++ warnings: |
| | 74 | #ifdef _MSC_VER |
| | 75 | #pragma warning(disable: 4244 4309 4514 4710) |
| | 76 | #endif |
| | 77 | |
| | 78 | #ifdef SCI_NAMESPACE |
| | 79 | } |
| | 80 | #endif |
| | 81 | |
| | 82 | #endif |
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