method

new

v1_9_1_378 - Show latest stable - 0 notes - Class: Parser

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new(p1, p2 = v2) public

Creates a new JSON::Ext::Parser instance for the string source.

It will be configured by the opts hash. opts can have the following keys:

opts can have the following keys:

max_nesting: The maximum depth of nesting allowed in the parsed data

structures. Disable depth checking with :max_nesting => false|nil|0, it
defaults to 19.

allow_nan: If set to true, allow NaN, Infinity and -Infinity in

defiance of RFC 4627 to be parsed by the Parser. This option defaults to
false.

create_additions: If set to false, the Parser doesn’t create

additions even if a matchin class and create_id was found. This option
defaults to true.

Show source

static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self)
{
    char *ptr;
    long len;
    VALUE source, opts;
    GET_STRUCT;
    rb_scan_args(argc, argv, "11", &source, &opts);
    source = StringValue(source);
    ptr = RSTRING_PTR(source);
    len = RSTRING_LEN(source);
    if (len < 2) {
        rb_raise(eParserError, "A JSON text must at least contain two octets!");
    }
    if (!NIL_P(opts)) {
        opts = rb_convert_type(opts, T_HASH, "Hash", "to_hash");
        if (NIL_P(opts)) {
            rb_raise(rb_eArgError, "opts needs to be like a hash");
        } else {
            VALUE tmp = ID2SYM(i_max_nesting);
            if (st_lookup(RHASH_TBL(opts), tmp, 0)) {
                VALUE max_nesting = rb_hash_aref(opts, tmp);
                if (RTEST(max_nesting)) {
                    Check_Type(max_nesting, T_FIXNUM);
                    json->max_nesting = FIX2INT(max_nesting);
                } else {
                    json->max_nesting = 0;
                }
            } else {
                json->max_nesting = 19;
            }
            tmp = ID2SYM(i_allow_nan);
            if (st_lookup(RHASH_TBL(opts), tmp, 0)) {
                VALUE allow_nan = rb_hash_aref(opts, tmp);
                json->allow_nan = RTEST(allow_nan) ? 1 : 0;
            } else {
                json->allow_nan = 0;
            }
            tmp = ID2SYM(i_create_additions);
            if (st_lookup(RHASH_TBL(opts), tmp, 0)) {
                VALUE create_additions = rb_hash_aref(opts, tmp);
                if (RTEST(create_additions)) {
                    json->create_id = rb_funcall(mJSON, i_create_id, 0);
                } else {
                    json->create_id = Qnil;
                }
            } else {
                json->create_id = rb_funcall(mJSON, i_create_id, 0);
            }
        }
    } else {
        json->max_nesting = 19;
        json->allow_nan = 0;
        json->create_id = rb_funcall(mJSON, i_create_id, 0);
    }
    json->current_nesting = 0;
    /*
       Convert these?
    if (len >= 4 &&  ptr[0] == 0 && ptr[1] == 0 && ptr[2] == 0) {
        rb_raise(eParserError, "Only UTF8 octet streams are supported atm!");
    } else if (len >= 4 && ptr[0] == 0 && ptr[2] == 0) {
        rb_raise(eParserError, "Only UTF8 octet streams are supported atm!");
    } else if (len >= 4 && ptr[1] == 0 && ptr[2] == 0 && ptr[3] == 0) {
        rb_raise(eParserError, "Only UTF8 octet streams are supported atm!");
    } else if (len >= 4 && ptr[1] == 0 && ptr[3] == 0) {
        rb_raise(eParserError, "Only UTF8 octet streams are supported atm!");
    }
    */
    json->len = len;
    json->source = ptr;
    json->Vsource = source;
    return self;
}

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