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65ec6247 RD |
1 | // Scintilla source code edit control |
2 | /** @file KeyWords.h | |
3 | ** Colourise for particular languages. | |
4 | **/ | |
5 | // Copyright 1998-2001 by Neil Hodgson <neilh@scintilla.org> | |
9ce192d4 RD |
6 | // The License.txt file describes the conditions under which this software may be distributed. |
7 | ||
f6bcfd97 BP |
8 | typedef void (*LexerFunction)(unsigned int startPos, int lengthDoc, int initStyle, |
9 | WordList *keywordlists[], Accessor &styler); | |
10 | ||
65ec6247 RD |
11 | /** |
12 | * A LexerModule is responsible for lexing and folding a particular language. | |
13 | * The class maintains a list of LexerModules which can be searched to find a | |
14 | * module appropriate to a particular language. | |
15 | */ | |
f6bcfd97 | 16 | class LexerModule { |
65ec6247 | 17 | protected: |
1a2fb4cd | 18 | const LexerModule *next; |
f6bcfd97 | 19 | int language; |
65ec6247 RD |
20 | LexerFunction fnLexer; |
21 | LexerFunction fnFolder; | |
22 | ||
1a2fb4cd | 23 | static const LexerModule *base; |
65ec6247 RD |
24 | static int nextLanguage; |
25 | ||
f6bcfd97 | 26 | public: |
1a2fb4cd | 27 | const char *languageName; |
65ec6247 RD |
28 | LexerModule(int language_, LexerFunction fnLexer_, |
29 | const char *languageName_=0, LexerFunction fnFolder_=0); | |
1a2fb4cd | 30 | int GetLanguage() const { return language; } |
65ec6247 | 31 | virtual void Lex(unsigned int startPos, int lengthDoc, int initStyle, |
1a2fb4cd | 32 | WordList *keywordlists[], Accessor &styler) const; |
65ec6247 | 33 | virtual void Fold(unsigned int startPos, int lengthDoc, int initStyle, |
1a2fb4cd RD |
34 | WordList *keywordlists[], Accessor &styler) const; |
35 | static const LexerModule *Find(int language); | |
36 | static const LexerModule *Find(const char *languageName); | |
f6bcfd97 BP |
37 | }; |
38 | ||
65ec6247 RD |
39 | /** |
40 | * Check if a character is a space. | |
41 | * This is ASCII specific but is safe with chars >= 0x80. | |
42 | */ | |
43 | inline bool isspacechar(unsigned char ch) { | |
44 | return (ch == ' ') || ((ch >= 0x09) && (ch <= 0x0d)); | |
45 | } | |
46 | ||
f6bcfd97 | 47 | inline bool iswordchar(char ch) { |
65ec6247 | 48 | return isascii(ch) && (isalnum(ch) || ch == '.' || ch == '_'); |
f6bcfd97 BP |
49 | } |
50 | ||
51 | inline bool iswordstart(char ch) { | |
65ec6247 | 52 | return isascii(ch) && (isalnum(ch) || ch == '_'); |
f6bcfd97 BP |
53 | } |
54 | ||
55 | inline bool isoperator(char ch) { | |
65ec6247 | 56 | if (isascii(ch) && isalnum(ch)) |
f6bcfd97 BP |
57 | return false; |
58 | // '.' left out as it is used to make up numbers | |
59 | if (ch == '%' || ch == '^' || ch == '&' || ch == '*' || | |
60 | ch == '(' || ch == ')' || ch == '-' || ch == '+' || | |
61 | ch == '=' || ch == '|' || ch == '{' || ch == '}' || | |
62 | ch == '[' || ch == ']' || ch == ':' || ch == ';' || | |
63 | ch == '<' || ch == '>' || ch == ',' || ch == '/' || | |
64 | ch == '?' || ch == '!' || ch == '.' || ch == '~') | |
65 | return true; | |
66 | return false; | |
67 | } |