1// Scintilla source code edit control
2/** @file DefaultLexer.h
3 ** A lexer base class with default empty implementations of methods.
4 ** For lexers that do not support all features so do not need real implementations.
5 ** Does have real implementation for style metadata.
6 **/
7// Copyright 2017 by Neil Hodgson <neilh@scintilla.org>
8// The License.txt file describes the conditions under which this software may be distributed.
9
10#ifndef DEFAULTLEXER_H
11#define DEFAULTLEXER_H
12
13namespace Lexilla {
14
15// A simple lexer with no state
16class DefaultLexer : public Scintilla::ILexer5 {
17 const char *languageName;
18 int language;
19 const LexicalClass *lexClasses;
20 size_t nClasses;
21public:
22 DefaultLexer(const char *languageName_, int language_,
23 const LexicalClass *lexClasses_ = nullptr, size_t nClasses_ = 0);
24 virtual ~DefaultLexer();
25 void SCI_METHOD Release() override;
26 int SCI_METHOD Version() const override;
27 const char * SCI_METHOD PropertyNames() override;
28 int SCI_METHOD PropertyType(const char *name) override;
29 const char * SCI_METHOD DescribeProperty(const char *name) override;
30 Sci_Position SCI_METHOD PropertySet(const char *key, const char *val) override;
31 const char * SCI_METHOD DescribeWordListSets() override;
32 Sci_Position SCI_METHOD WordListSet(int n, const char *wl) override;
33 void SCI_METHOD Lex(Sci_PositionU startPos, Sci_Position lengthDoc, int initStyle, Scintilla::IDocument *pAccess) override = 0;
34 void SCI_METHOD Fold(Sci_PositionU startPos, Sci_Position lengthDoc, int initStyle, Scintilla::IDocument *pAccess) override;
35 void * SCI_METHOD PrivateCall(int operation, void *pointer) override;
36 int SCI_METHOD LineEndTypesSupported() override;
37 int SCI_METHOD AllocateSubStyles(int styleBase, int numberStyles) override;
38 int SCI_METHOD SubStylesStart(int styleBase) override;
39 int SCI_METHOD SubStylesLength(int styleBase) override;
40 int SCI_METHOD StyleFromSubStyle(int subStyle) override;
41 int SCI_METHOD PrimaryStyleFromStyle(int style) override;
42 void SCI_METHOD FreeSubStyles() override;
43 void SCI_METHOD SetIdentifiers(int style, const char *identifiers) override;
44 int SCI_METHOD DistanceToSecondaryStyles() override;
45 const char * SCI_METHOD GetSubStyleBases() override;
46 int SCI_METHOD NamedStyles() override;
47 const char * SCI_METHOD NameOfStyle(int style) override;
48 const char * SCI_METHOD TagsOfStyle(int style) override;
49 const char * SCI_METHOD DescriptionOfStyle(int style) override;
50 // ILexer5 methods
51 const char * SCI_METHOD GetName() override;
52 int SCI_METHOD GetIdentifier() override;
53};
54
55}
56
57#endif
58