1 | // Scintilla source code edit control |
---|---|
2 | /** @file LexerBase.cxx |
3 | ** A simple lexer with no state. |
4 | **/ |
5 | // Copyright 1998-2010 by Neil Hodgson <neilh@scintilla.org> |
6 | // The License.txt file describes the conditions under which this software may be distributed. |
7 | |
8 | #include <cstdlib> |
9 | #include <cassert> |
10 | #include <cstring> |
11 | |
12 | #include <string> |
13 | #include <string_view> |
14 | |
15 | #include "ILexer.h" |
16 | #include "Scintilla.h" |
17 | #include "SciLexer.h" |
18 | |
19 | #include "PropSetSimple.h" |
20 | #include "WordList.h" |
21 | #include "LexAccessor.h" |
22 | #include "Accessor.h" |
23 | #include "LexerModule.h" |
24 | #include "LexerBase.h" |
25 | |
26 | using namespace Lexilla; |
27 | |
28 | static const char styleSubable[] = { 0 }; |
29 | |
30 | LexerBase::LexerBase(const LexicalClass *lexClasses_, size_t nClasses_) : |
31 | lexClasses(lexClasses_), nClasses(nClasses_) { |
32 | for (int wl = 0; wl < numWordLists; wl++) |
33 | keyWordLists[wl] = new WordList; |
34 | keyWordLists[numWordLists] = nullptr; |
35 | } |
36 | |
37 | LexerBase::~LexerBase() { |
38 | for (int wl = 0; wl < numWordLists; wl++) { |
39 | delete keyWordLists[wl]; |
40 | keyWordLists[wl] = nullptr; |
41 | } |
42 | keyWordLists[numWordLists] = nullptr; |
43 | } |
44 | |
45 | void SCI_METHOD LexerBase::Release() { |
46 | delete this; |
47 | } |
48 | |
49 | int SCI_METHOD LexerBase::Version() const { |
50 | return Scintilla::lvRelease5; |
51 | } |
52 | |
53 | const char * SCI_METHOD LexerBase::PropertyNames() { |
54 | return ""; |
55 | } |
56 | |
57 | int SCI_METHOD LexerBase::PropertyType(const char *) { |
58 | return SC_TYPE_BOOLEAN; |
59 | } |
60 | |
61 | const char * SCI_METHOD LexerBase::DescribeProperty(const char *) { |
62 | return ""; |
63 | } |
64 | |
65 | Sci_Position SCI_METHOD LexerBase::PropertySet(const char *key, const char *val) { |
66 | if (props.Set(key, val)) { |
67 | return 0; |
68 | } else { |
69 | return -1; |
70 | } |
71 | } |
72 | |
73 | const char *SCI_METHOD LexerBase::PropertyGet(const char *key) { |
74 | return props.Get(key); |
75 | } |
76 | |
77 | const char * SCI_METHOD LexerBase::DescribeWordListSets() { |
78 | return ""; |
79 | } |
80 | |
81 | Sci_Position SCI_METHOD LexerBase::WordListSet(int n, const char *wl) { |
82 | if (n < numWordLists) { |
83 | if (keyWordLists[n]->Set(wl)) { |
84 | return 0; |
85 | } |
86 | } |
87 | return -1; |
88 | } |
89 | |
90 | void * SCI_METHOD LexerBase::PrivateCall(int, void *) { |
91 | return nullptr; |
92 | } |
93 | |
94 | int SCI_METHOD LexerBase::LineEndTypesSupported() { |
95 | return SC_LINE_END_TYPE_DEFAULT; |
96 | } |
97 | |
98 | int SCI_METHOD LexerBase::AllocateSubStyles(int, int) { |
99 | return -1; |
100 | } |
101 | |
102 | int SCI_METHOD LexerBase::SubStylesStart(int) { |
103 | return -1; |
104 | } |
105 | |
106 | int SCI_METHOD LexerBase::SubStylesLength(int) { |
107 | return 0; |
108 | } |
109 | |
110 | int SCI_METHOD LexerBase::StyleFromSubStyle(int subStyle) { |
111 | return subStyle; |
112 | } |
113 | |
114 | int SCI_METHOD LexerBase::PrimaryStyleFromStyle(int style) { |
115 | return style; |
116 | } |
117 | |
118 | void SCI_METHOD LexerBase::FreeSubStyles() { |
119 | } |
120 | |
121 | void SCI_METHOD LexerBase::SetIdentifiers(int, const char *) { |
122 | } |
123 | |
124 | int SCI_METHOD LexerBase::DistanceToSecondaryStyles() { |
125 | return 0; |
126 | } |
127 | |
128 | const char * SCI_METHOD LexerBase::GetSubStyleBases() { |
129 | return styleSubable; |
130 | } |
131 | |
132 | int SCI_METHOD LexerBase::NamedStyles() { |
133 | return static_cast<int>(nClasses); |
134 | } |
135 | |
136 | const char * SCI_METHOD LexerBase::NameOfStyle(int style) { |
137 | return (style < NamedStyles()) ? lexClasses[style].name : ""; |
138 | } |
139 | |
140 | const char * SCI_METHOD LexerBase::TagsOfStyle(int style) { |
141 | return (style < NamedStyles()) ? lexClasses[style].tags : ""; |
142 | } |
143 | |
144 | const char * SCI_METHOD LexerBase::DescriptionOfStyle(int style) { |
145 | return (style < NamedStyles()) ? lexClasses[style].description : ""; |
146 | } |
147 | |
148 | // ILexer5 methods |
149 | |
150 | const char *SCI_METHOD LexerBase::GetName() { |
151 | return ""; |
152 | } |
153 | |
154 | int SCI_METHOD LexerBase::GetIdentifier() { |
155 | return SCLEX_AUTOMATIC; |
156 | } |
157 |