Method: U::String#chop

Defined in:
ext/u/rb_u_string_chop.c

#chop ⇒ U::String

Returns the receiver, minus its last character, inheriting any taint and untrust, unless the receiver is #empty? or if the last character is invalidly encoded, in which case the receiver is returned.

If the last character is U+000A LINE FEED and the second-to-last character is U+000D CARRIAGE RETURN, both characters are removed.

Returns:

See Also:



15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
 
# File 'ext/u/rb_u_string_chop.c', line 15

VALUE
rb_u_string_chop(VALUE self)
{
        const struct rb_u_string *string = RVAL2USTRING(self);

        if (USTRING_LENGTH(string) == 0)
                return self;

        const char *begin = USTRING_STR(string);
        const char *end = USTRING_END(string);

        const char *last;
        uint32_t c = u_decode_r(&last, begin, end);
        if (c == '\n')
                if (*(last - 1) == '\r')
                        last--;

        return rb_u_string_new_c(self, begin, last - begin);
}