9 #include "luautils.h"
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11 int eval_expr(lua_State *L, char *expr)
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14 sprintf(buf, "return %s", expr);
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15 return luaL_dostring(L, buf);
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18 int has_table(lua_State *L, char *name)
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22 result = lua_istable(L, -1);
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27 char *string_expr(lua_State *L, char *expr, char* fallback)
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30 if (eval_expr(L, expr) == 0) {
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31 if (lua_isstring(L, -1))
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32 result = strdup(lua_tostring(L, -1));
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33 else if (fallback != NULL)
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34 result = strdup(fallback);
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42 double double_expr(lua_State *L, char *expr, double fallback)
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44 double result = fallback;
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45 if (eval_expr(L, expr) == 0) {
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46 if (lua_isnumber(L, -1))
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47 result = (double) lua_tonumber(L, -1);
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53 int int_expr(lua_State *L, char *expr, int fallback)
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55 int result = fallback;
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56 if (eval_expr(L, expr) == 0) {
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57 if (lua_isnumber(L, -1))
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58 result = (int) lua_tonumber(L, -1);
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64 bool bool_expr(lua_State *L, char *expr, bool fallback)
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66 bool result = fallback;
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67 if (eval_expr(L, expr) == 0) {
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68 if (lua_isboolean(L, -1))
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69 result = (bool) lua_toboolean(L, -1);
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