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comparison interps/rail/src/MultiLexer.h @ 996:859f9b4339e6

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<Gregor> tar xf egobot.tar.xz
author HackBot
date Sun, 09 Dec 2012 19:30:08 +0000
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995:6883f5911eb7 996:859f9b4339e6
1 // MultiLexer.h
2
3 #ifndef MULTI_LEXER_H_RAIL_1
4 #define MULTI_LEXER_H_RAIL_1
5
6 class MultiLexer
7 {
8 public:
9 MultiLexer();
10 void reset(void);
11 void add(char letter);
12
13 bool isStarted(void) const;
14 bool isDone(void) const;
15 bool isFunction(void) const;
16 bool isConstant(void) const;
17 bool isUse(void) const;
18 bool isBind(void) const;
19 std::string const & getToken(void) const;
20 private:
21 void inFunction(char letter);
22 void inConstant(char letter);
23 void inUse(char letter);
24 void inBind(char letter);
25 void tooManyLetters(char letter);
26 private:
27 enum StateT
28 {
29 EMPTY=0,
30
31 FUNCTION_BEGIN,
32 FUNCTION_END,
33
34 CONSTANT_BEGIN,
35 CONSTANT_END,
36 ESCAPE_BEGIN,
37 ESCAPE_END,
38
39 VARIABLE_BEGIN,
40 USE_BEGIN,
41 USE_END,
42 BIND_BEGIN,
43 BIND_MIDDLE,
44 BIND_END
45 };
46 private:
47 std::string token;
48 StateT state;
49 char openChar;
50 char closeChar;
51 };
52
53 #endif