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Define some global functions and values.

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This commit is contained in:
Tor Andersson
2014-01-17 21:09:53 +01:00
parent 060dbbb03c
commit 0d595bd6cf
2 changed files with 47 additions and 0 deletions
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43
jsbuiltin.c
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@@ -94,6 +94,35 @@ static void jsB_initstring(js_State *J)
js_setglobal(J, "String");
}
static int jsB_parseInt(js_State *J, int argc)
{
const char *s = js_tostring(J, 1);
double radix = argc > 1 ? js_tonumber(J, 2) : 10;
js_pushnumber(J, strtol(s, NULL, radix == 0 ? 10 : radix));
return 1;
}
static int jsB_parseFloat(js_State *J, int argc)
{
const char *s = js_tostring(J, 1);
js_pushnumber(J, strtod(s, NULL));
return 1;
}
static int jsB_isNaN(js_State *J, int argc)
{
double n = js_tonumber(J, 1);
js_pushboolean(J, isnan(n));
return 1;
}
static int jsB_isFinite(js_State *J, int argc)
{
double n = js_tonumber(J, 1);
js_pushboolean(J, isfinite(n));
return 1;
}
static void jsB_register(js_State *J, const char *name, js_CFunction cfun)
{
js_pushcfunction(J, cfun);
@@ -109,6 +138,20 @@ void jsB_init(js_State *J)
jsB_initnumber(J);
jsB_initstring(J);
js_pushnumber(J, NAN);
js_setglobal(J, "NaN");
js_pushnumber(J, INFINITY);
js_setglobal(J, "Infinity");
js_pushundefined(J);
js_setglobal(J, "undefined");
jsB_register(J, "eval", jsB_eval);
jsB_register(J, "parseInt", jsB_parseInt);
jsB_register(J, "parseFloat", jsB_parseFloat);
jsB_register(J, "isNaN", jsB_isNaN);
jsB_register(J, "isFinite", jsB_isFinite);
jsB_register(J, "print", jsB_print);
}

4
jsrun.h
View File

@@ -7,10 +7,14 @@ struct js_Environment
js_Object *variables;
};
/* private */
void jsB_init(js_State *J);
js_Environment *jsR_newenvironment(js_State *J, js_Object *variables, js_Environment *outer);
int jsR_loadscript(js_State *J, const char *filename, const char *source);
void jsR_error(js_State *J, const char *fmt, ...);
void js_pushobject(js_State *J, js_Object *v);
/* public */
void js_call(js_State *J, int n);