1 | /* |
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2 | ** $Id: lstring.h,v 1.49.1.1 2013/04/12 18:48:47 roberto Exp $ |
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3 | ** String table (keep all strings handled by Lua) |
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4 | ** See Copyright Notice in lua.h |
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5 | */ |
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6 | |
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7 | #ifndef lstring_h |
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8 | #define lstring_h |
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9 | |
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10 | #include "lgc.h" |
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11 | #include "lobject.h" |
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12 | #include "lstate.h" |
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13 | |
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14 | |
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15 | #define sizestring(s) (sizeof(union TString)+((s)->len+1)*sizeof(char)) |
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16 | |
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17 | #define sizeudata(u) (sizeof(union Udata)+(u)->len) |
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18 | |
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19 | #define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \ |
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20 | (sizeof(s)/sizeof(char))-1)) |
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21 | |
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22 | #define luaS_fix(s) l_setbit((s)->tsv.marked, FIXEDBIT) |
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23 | |
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24 | |
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25 | /* |
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26 | ** test whether a string is a reserved word |
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27 | */ |
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28 | #define isreserved(s) ((s)->tsv.tt == LUA_TSHRSTR && (s)->tsv.extra > 0) |
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29 | |
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30 | |
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31 | /* |
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32 | ** equality for short strings, which are always internalized |
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33 | */ |
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34 | #define eqshrstr(a,b) check_exp((a)->tsv.tt == LUA_TSHRSTR, (a) == (b)) |
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35 | |
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36 | |
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37 | LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed); |
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38 | LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b); |
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39 | LUAI_FUNC int luaS_eqstr (TString *a, TString *b); |
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40 | LUAI_FUNC void luaS_resize (lua_State *L, int newsize); |
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41 | LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, Table *e); |
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42 | LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l); |
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43 | LUAI_FUNC TString *luaS_new (lua_State *L, const char *str); |
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44 | |
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45 | |
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46 | #endif |
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