Method: String#lstrip!

Defined in:
string.c

#lstrip! ⇒ self?

Like String#lstrip, except that any modifications are made in self; returns self if any modification are made, nil otherwise.

Related: String#rstrip!, String#strip!.

Returns:

  • (self, nil) 


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# File 'string.c', line 10252

static VALUE
rb_str_lstrip_bang(VALUE str)
{
    rb_encoding *enc;
    char *start, *s;
    long olen, loffset;

    str_modify_keep_cr(str);
    enc = STR_ENC_GET(str);
    RSTRING_GETMEM(str, start, olen);
    loffset = lstrip_offset(str, start, start+olen, enc);
    if (loffset > 0) {
        long len = olen-loffset;
        s = start + loffset;
        memmove(start, s, len);
        STR_SET_LEN(str, len);
        TERM_FILL(start+len, rb_enc_mbminlen(enc));
        return str;
    }
    return Qnil;
}