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Script.cpp
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Script.cpp
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/*
* TinyJS
*
* A single-file Javascript-alike engine
*
* Authored By Gordon Williams <[email protected]>
*
* Copyright (C) 2009 Pur3 Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/*
* This is a simple program showing how to use TinyJS
*/
#include "TinyJS.h"
#include "TinyJS_Functions.h"
#include <assert.h>
#include <stdio.h>
//const char *code = "var a = 5; if (a==5) a=4; else a=3;";
//const char *code = "{ var a = 4; var b = 1; while (a>0) { b = b * 2; a = a - 1; } var c = 5; }";
//const char *code = "{ var b = 1; for (var i=0;i<4;i=i+1) b = b * 2; }";
const char *code = "function myfunc(x, y) { return x + y; } var a = myfunc(1,2); print(a);";
void js_print(CScriptVar *v, void *userdata) {
printf("> %s\n", v->getParameter("text")->getString().c_str());
}
void js_dump(CScriptVar *v, void *userdata) {
CTinyJS *js = (CTinyJS*)userdata;
js->root->trace("> ");
}
int main(int argc, char **argv)
{
CTinyJS *js = new CTinyJS();
/* add the functions from TinyJS_Functions.cpp */
registerFunctions(js);
/* Add a native function */
js->addNative("function print(text)", &js_print, 0);
js->addNative("function dump()", &js_dump, js);
/* Execute out bit of code - we could call 'evaluate' here if
we wanted something returned */
try {
js->execute("var lets_quit = 0; function quit() { lets_quit = 1; }");
js->execute("print(\"Interactive mode... Type quit(); to exit, or print(...); to print something, or dump() to dump the symbol table!\");");
} catch (CScriptException *e) {
printf("ERROR: %s\n", e->text.c_str());
}
while (js->evaluate("lets_quit") == "0") {
char buffer[2048];
fgets ( buffer, sizeof(buffer), stdin );
try {
js->execute(buffer);
} catch (CScriptException *e) {
printf("ERROR: %s\n", e->text.c_str());
}
}
delete js;
#ifdef _WIN32
#ifdef _DEBUG
_CrtDumpMemoryLeaks();
#endif
#endif
return 0;
}