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/*
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* TinyJS
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*
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* A single-file Javascript-alike engine
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*
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* Authored By Gordon Williams <gw@pur3.co.uk>
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*
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* Copyright (C) 2009 Pur3 Ltd
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* This is a simple program showing how to use TinyJS
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*/
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#include "TinyJS.h"
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#include "TinyJS_Functions.h"
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#include <assert.h>
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#include <stdio.h>
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//const char *code = "var a = 5; if (a==5) a=4; else a=3;";
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//const char *code = "{ var a = 4; var b = 1; while (a>0) { b = b * 2; a = a - 1; } var c = 5; }";
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//const char *code = "{ var b = 1; for (var i=0;i<4;i=i+1) b = b * 2; }";
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const char *code = "function myfunc(x, y) { return x + y; } var a = myfunc(1,2); print(a);";
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void js_print(CScriptVar *v, void *userdata) {
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printf("> %s\n", v->getParameter("text")->getString().c_str());
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}
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void js_dump(CScriptVar *v, void *userdata) {
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CTinyJS *js = (CTinyJS*)userdata;
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js->root->trace("> ");
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}
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int main(int argc, char **argv)
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{
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CTinyJS *js = new CTinyJS();
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/* add the functions from TinyJS_Functions.cpp */
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registerFunctions(js);
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/* Add a native function */
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js->addNative("function print(text)", &js_print, 0);
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js->addNative("function dump()", &js_dump, js);
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/* Execute out bit of code - we could call 'evaluate' here if
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we wanted something returned */
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try {
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js->execute("var lets_quit = 0; function quit() { lets_quit = 1; }");
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js->execute("print(\"Interactive mode... Type quit(); to exit, or print(...); to print something, or dump() to dump the symbol table!\");");
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} catch (CScriptException *e) {
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printf("ERROR: %s\n", e->text.c_str());
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}
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while (js->evaluate("lets_quit") == "0") {
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char buffer[2048];
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fgets ( buffer, sizeof(buffer), stdin );
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try {
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js->execute(buffer);
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} catch (CScriptException *e) {
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printf("ERROR: %s\n", e->text.c_str());
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}
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}
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delete js;
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#ifdef _WIN32
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#ifdef _DEBUG
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_CrtDumpMemoryLeaks();
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#endif
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#endif
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return 0;
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}
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