ref: 598de57d76b9b3ff421d1d737eca0b88e0d020a3
dir: /jsbuiltin.c/
#include "jsi.h"
#include "jslex.h"
#include "jscompile.h"
#include "jsvalue.h"
#include "jsbuiltin.h"
static void jsB_globalf(js_State *J, const char *name, js_CFunction cfun, int n)
{
js_newcfunction(J, cfun, n);
js_defglobal(J, name, JS_DONTENUM);
}
void jsB_propf(js_State *J, const char *name, js_CFunction cfun, int n)
{
js_newcfunction(J, cfun, n);
js_defproperty(J, -2, name, JS_DONTENUM);
}
void jsB_propn(js_State *J, const char *name, double number)
{
js_pushnumber(J, number);
js_defproperty(J, -2, name, JS_DONTENUM);
}
void jsB_props(js_State *J, const char *name, const char *string)
{
js_pushliteral(J, string);
js_defproperty(J, -2, name, JS_DONTENUM);
}
static void jsB_eval(js_State *J, unsigned int argc)
{
if (!js_isstring(J, -1)) {
js_copy(J, 1);
return;
}
js_loadstring(J, "(eval)", js_tostring(J, -1));
js_pushglobal(J);
js_call(J, 0);
}
static void jsB_parseInt(js_State *J, unsigned int argc)
{
const char *s = js_tostring(J, 1);
double radix = js_isdefined(J, 2) ? js_tonumber(J, 2) : 10;
char *e;
double n;
while (jsY_iswhite(*s) || jsY_isnewline(*s)) ++s;
if (radix == 0)
radix = 10;
if (s[0] == '0' && (s[1] == 'x' || s[1] == 'X')) {
s += 2;
radix = 16;
}
n = strtol(s, &e, radix);
if (s == e)
js_pushnumber(J, NAN);
else
js_pushnumber(J, n);
}
static void jsB_parseFloat(js_State *J, unsigned int argc)
{
const char *s = js_tostring(J, 1);
char *e;
double n;
while (jsY_iswhite(*s) || jsY_isnewline(*s)) ++s;
if (!strncmp(s, "Infinity", 8))
js_pushnumber(J, INFINITY);
else if (!strncmp(s, "+Infinity", 9))
js_pushnumber(J, INFINITY);
else if (!strncmp(s, "-Infinity", 9))
js_pushnumber(J, -INFINITY);
else {
n = js_strtod(s, &e);
if (e == s)
js_pushnumber(J, NAN);
else
js_pushnumber(J, n);
}
}
static void jsB_isNaN(js_State *J, unsigned int argc)
{
double n = js_tonumber(J, 1);
js_pushboolean(J, isnan(n));
}
static void jsB_isFinite(js_State *J, unsigned int argc)
{
double n = js_tonumber(J, 1);
js_pushboolean(J, isfinite(n));
}
static void Encode(js_State *J, const char *str, const char *unescaped)
{
js_Buffer *sb = NULL;
static const char *HEX = "0123456789ABCDEF";
while (*str) {
int c = (unsigned char) *str++;
if (strchr(unescaped, c))
sb_putc(&sb, c);
else {
sb_putc(&sb, '%');
sb_putc(&sb, HEX[(c >> 4) & 0xf]);
sb_putc(&sb, HEX[c & 0xf]);
}
}
sb_putc(&sb, 0);
if (js_try(J)) {
free(sb);
js_throw(J);
}
js_pushstring(J, sb ? sb->s : "");
js_endtry(J);
free(sb);
}
static void Decode(js_State *J, const char *str, const char *reserved)
{
js_Buffer *sb = NULL;
int a, b;
while (*str) {
int c = (unsigned char) *str++;
if (c != '%')
sb_putc(&sb, c);
else {
if (!str[0] || !str[1])
js_urierror(J, "truncated escape sequence");
a = *str++;
b = *str++;
if (!jsY_ishex(a) || !jsY_ishex(b))
js_urierror(J, "invalid escape sequence");
c = jsY_tohex(a) << 4 | jsY_tohex(b);
if (!strchr(reserved, c))
sb_putc(&sb, c);
else {
sb_putc(&sb, '%');
sb_putc(&sb, a);
sb_putc(&sb, b);
}
}
}
sb_putc(&sb, 0);
if (js_try(J)) {
free(sb);
js_throw(J);
}
js_pushstring(J, sb ? sb->s : "");
js_endtry(J);
free(sb);
}
#define URIRESERVED ";/?:@&=+$,"
#define URIALPHA "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
#define URIDIGIT "0123456789"
#define URIMARK "-_.!~*`()"
#define URIUNESCAPED URIALPHA URIDIGIT URIMARK
static void jsB_decodeURI(js_State *J, unsigned int argc)
{
Decode(J, js_tostring(J, 1), URIRESERVED "#");
}
static void jsB_decodeURIComponent(js_State *J, unsigned int argc)
{
Decode(J, js_tostring(J, 1), "");
}
static void jsB_encodeURI(js_State *J, unsigned int argc)
{
Encode(J, js_tostring(J, 1), URIUNESCAPED URIRESERVED "#");
}
static void jsB_encodeURIComponent(js_State *J, unsigned int argc)
{
Encode(J, js_tostring(J, 1), URIUNESCAPED);
}
void jsB_init(js_State *J)
{
/* Create the prototype objects here, before the constructors */
J->Object_prototype = jsV_newobject(J, JS_COBJECT, NULL);
J->Array_prototype = jsV_newobject(J, JS_CARRAY, J->Object_prototype);
J->Function_prototype = jsV_newobject(J, JS_CCFUNCTION, J->Object_prototype);
J->Boolean_prototype = jsV_newobject(J, JS_CBOOLEAN, J->Object_prototype);
J->Number_prototype = jsV_newobject(J, JS_CNUMBER, J->Object_prototype);
J->String_prototype = jsV_newobject(J, JS_CSTRING, J->Object_prototype);
J->RegExp_prototype = jsV_newobject(J, JS_COBJECT, J->Object_prototype);
J->Date_prototype = jsV_newobject(J, JS_CDATE, J->Object_prototype);
/* All the native error types */
J->Error_prototype = jsV_newobject(J, JS_CERROR, J->Object_prototype);
J->EvalError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
J->RangeError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
J->ReferenceError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
J->SyntaxError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
J->TypeError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
J->URIError_prototype = jsV_newobject(J, JS_CERROR, J->Error_prototype);
/* Create the constructors and fill out the prototype objects */
jsB_initobject(J);
jsB_initarray(J);
jsB_initfunction(J);
jsB_initboolean(J);
jsB_initnumber(J);
jsB_initstring(J);
jsB_initregexp(J);
jsB_initdate(J);
jsB_initerror(J);
jsB_initmath(J);
jsB_initjson(J);
/* Initialize the global object */
js_pushnumber(J, NAN);
js_defglobal(J, "NaN", JS_READONLY | JS_DONTENUM | JS_DONTCONF);
js_pushnumber(J, INFINITY);
js_defglobal(J, "Infinity", JS_READONLY | JS_DONTENUM | JS_DONTCONF);
js_pushundefined(J);
js_defglobal(J, "undefined", JS_READONLY | JS_DONTENUM | JS_DONTCONF);
jsB_globalf(J, "eval", jsB_eval, 1);
jsB_globalf(J, "parseInt", jsB_parseInt, 1);
jsB_globalf(J, "parseFloat", jsB_parseFloat, 1);
jsB_globalf(J, "isNaN", jsB_isNaN, 1);
jsB_globalf(J, "isFinite", jsB_isFinite, 1);
jsB_globalf(J, "decodeURI", jsB_decodeURI, 1);
jsB_globalf(J, "decodeURIComponent", jsB_decodeURIComponent, 1);
jsB_globalf(J, "encodeURI", jsB_encodeURI, 1);
jsB_globalf(J, "encodeURIComponent", jsB_encodeURIComponent, 1);
}