diff options
Diffstat (limited to 'libs/lua/src/llex.h')
-rw-r--r-- | libs/lua/src/llex.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/libs/lua/src/llex.h b/libs/lua/src/llex.h new file mode 100644 index 0000000..a9201ce --- /dev/null +++ b/libs/lua/src/llex.h | |||
@@ -0,0 +1,81 @@ | |||
1 | /* | ||
2 | ** $Id: llex.h,v 1.58.1.1 2007/12/27 13:02:25 roberto Exp $ | ||
3 | ** Lexical Analyzer | ||
4 | ** See Copyright Notice in lua.h | ||
5 | */ | ||
6 | |||
7 | #ifndef llex_h | ||
8 | #define llex_h | ||
9 | |||
10 | #include "lobject.h" | ||
11 | #include "lzio.h" | ||
12 | |||
13 | |||
14 | #define FIRST_RESERVED 257 | ||
15 | |||
16 | /* maximum length of a reserved word */ | ||
17 | #define TOKEN_LEN (sizeof("function")/sizeof(char)) | ||
18 | |||
19 | |||
20 | /* | ||
21 | * WARNING: if you change the order of this enumeration, | ||
22 | * grep "ORDER RESERVED" | ||
23 | */ | ||
24 | enum RESERVED { | ||
25 | /* terminal symbols denoted by reserved words */ | ||
26 | TK_AND = FIRST_RESERVED, TK_BREAK, | ||
27 | TK_DO, TK_ELSE, TK_ELSEIF, TK_END, TK_FALSE, TK_FOR, TK_FUNCTION, | ||
28 | TK_IF, TK_IN, TK_LOCAL, TK_NIL, TK_NOT, TK_OR, TK_REPEAT, | ||
29 | TK_RETURN, TK_THEN, TK_TRUE, TK_UNTIL, TK_WHILE, | ||
30 | /* other terminal symbols */ | ||
31 | TK_CONCAT, TK_DOTS, TK_EQ, TK_GE, TK_LE, TK_NE, TK_NUMBER, | ||
32 | TK_NAME, TK_STRING, TK_EOS | ||
33 | }; | ||
34 | |||
35 | /* number of reserved words */ | ||
36 | #define NUM_RESERVED (cast(int, TK_WHILE-FIRST_RESERVED+1)) | ||
37 | |||
38 | |||
39 | /* array with token `names' */ | ||
40 | LUAI_DATA const char *const luaX_tokens []; | ||
41 | |||
42 | |||
43 | typedef union { | ||
44 | lua_Number r; | ||
45 | TString *ts; | ||
46 | } SemInfo; /* semantics information */ | ||
47 | |||
48 | |||
49 | typedef struct Token { | ||
50 | int token; | ||
51 | SemInfo seminfo; | ||
52 | } Token; | ||
53 | |||
54 | |||
55 | typedef struct LexState { | ||
56 | int current; /* current character (charint) */ | ||
57 | int linenumber; /* input line counter */ | ||
58 | int lastline; /* line of last token `consumed' */ | ||
59 | Token t; /* current token */ | ||
60 | Token lookahead; /* look ahead token */ | ||
61 | struct FuncState *fs; /* `FuncState' is private to the parser */ | ||
62 | struct lua_State *L; | ||
63 | ZIO *z; /* input stream */ | ||
64 | Mbuffer *buff; /* buffer for tokens */ | ||
65 | TString *source; /* current source name */ | ||
66 | char decpoint; /* locale decimal point */ | ||
67 | } LexState; | ||
68 | |||
69 | |||
70 | LUAI_FUNC void luaX_init (lua_State *L); | ||
71 | LUAI_FUNC void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, | ||
72 | TString *source); | ||
73 | LUAI_FUNC TString *luaX_newstring (LexState *ls, const char *str, size_t l); | ||
74 | LUAI_FUNC void luaX_next (LexState *ls); | ||
75 | LUAI_FUNC void luaX_lookahead (LexState *ls); | ||
76 | LUAI_FUNC void luaX_lexerror (LexState *ls, const char *msg, int token); | ||
77 | LUAI_FUNC void luaX_syntaxerror (LexState *ls, const char *s); | ||
78 | LUAI_FUNC const char *luaX_token2str (LexState *ls, int token); | ||
79 | |||
80 | |||
81 | #endif | ||