method

codepoints

v1_9_1_378 - Show latest stable - Class: String

codepoints()

public

Returns an enumerator that gives the Integer ordinal of each character in the string, also known as a codepoint when applied to Unicode strings. If a block is given, it iterates over each character in the string.

"foo\u0635".codepoints.to_a   #=> [102, 111, 111, 1589]

static VALUE
rb_str_each_codepoint(VALUE str)
{
    long len;
    int n;
    unsigned int c;
    const char *ptr, *end;
    rb_encoding *enc;

    if (single_byte_optimizable(str)) return rb_str_each_byte(str);
    RETURN_ENUMERATOR(str, 0, 0);
    ptr = RSTRING_PTR(str);
    len = RSTRING_LEN(str);
    end = RSTRING_END(str);
    enc = STR_ENC_GET(str);
    while (ptr < end) {
        c = rb_enc_codepoint(ptr, end, enc);
        n = rb_enc_codelen(c, enc);
        rb_yield(UINT2NUM(c));
        ptr += n;
    }
    return str;
}

codepoints

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