5 #include "luautils.h"
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7 int eval_expr(lua_State *L, char *expr)
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10 sprintf(buf, "return %s", expr);
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11 return luaL_dostring(L, buf);
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14 int has_table(lua_State *L, char *name)
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18 result = lua_istable(L, -1);
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23 char *string_expr(lua_State *L, char *expr, char* fallback)
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26 if (eval_expr(L, expr) == 0) {
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27 if (lua_isstring(L, -1))
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28 result = strdup(lua_tostring(L, -1));
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29 else if (fallback != NULL)
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30 result = strdup(fallback);
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38 double double_expr(lua_State *L, char *expr, double fallback)
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40 double result = fallback;
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41 if (eval_expr(L, expr) == 0) {
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42 if (lua_isnumber(L, -1))
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43 result = (double) lua_tonumber(L, -1);
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49 int int_expr(lua_State *L, char *expr, int fallback)
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51 int result = fallback;
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52 if (eval_expr(L, expr) == 0) {
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53 if (lua_isnumber(L, -1))
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54 result = (int) lua_tonumber(L, -1);
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60 bool bool_expr(lua_State *L, char *expr, bool fallback)
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62 bool result = fallback;
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63 if (eval_expr(L, expr) == 0) {
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64 if (lua_isboolean(L, -1))
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65 result = (bool) lua_toboolean(L, -1);
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