101 lines
2.0 KiB
C++
101 lines
2.0 KiB
C++
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#include "ag.h"
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#include <lua.hpp>
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#include <stdlib.h> /* exit() */
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#include <iostream>
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#include <string>
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using namespace std;
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static void usage();
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static void report_errors(lua_State * L, int status);
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static void register_libraries(lua_State * L);
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int main(int argc, char * argv[])
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{
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const char * program = NULL;
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for (int i = 1; i < argc; i++)
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{
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if (argv[i][0] != '-')
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{
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if (program == NULL)
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{
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program = argv[i];
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}
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else
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{
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cerr << "Warning: argument " << argv[i] << " ignored!" << endl;
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}
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}
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else
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{
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cerr << "Warning: Unrecognized option '" << argv[i]+1
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<< "'" << endl;
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}
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}
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if (program == NULL)
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{
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usage();
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}
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lua_State * L = lua_open();
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register_libraries(L);
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int s = luaL_loadfile(L, program);
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if ( s == 0 )
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{
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// execute Lua program
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s = lua_pcall(L, 0, LUA_MULTRET, 0);
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}
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else
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{
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cerr << "Warning: problem loading '" << program << "'" << endl;
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return 1;
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}
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report_errors(L, s);
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lua_close(L);
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return 0;
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}
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static void report_errors(lua_State * L, int status)
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{
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if ( status!=0 )
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{
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cerr << "-- " << lua_tostring(L, -1) << endl;
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lua_pop(L, 1); // remove error message
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}
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}
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static void usage()
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{
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cerr << "Usage: anaglym [options] program.lua[c]" << endl;
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exit(42);
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}
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static void register_libraries(lua_State * L)
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{
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/* Load the Lua string library */
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lua_pushcfunction(L, luaopen_string);
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lua_pcall(L, 0, 0, 0);
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/* Load the Lua math library */
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lua_pushcfunction(L, luaopen_math);
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lua_pcall(L, 0, 0, 0);
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/* Load the Lua table library */
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lua_pushcfunction(L, luaopen_table);
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lua_pcall(L, 0, 0, 0);
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ag::register_functions(L);
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}
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string locateResource(const string & shortname)
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{
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/* TODO: fill in */
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return "";
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}
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