diff options
Diffstat (limited to 'ext')
| -rw-r--r-- | ext/strscan/strscan.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/ext/strscan/strscan.c b/ext/strscan/strscan.c index a2bf56ce4f..7dbd971ae9 100644 --- a/ext/strscan/strscan.c +++ b/ext/strscan/strscan.c @@ -1243,10 +1243,10 @@ strscan_size(VALUE self) * If nothing was priorly matched, it returns nil. * * s = StringScanner.new("Fri Dec 12 1975 14:39") - * s.scan(/(\w+) (\w+) (\d+) /) # -> "Fri Dec 12 " - * s.captures # -> ["Fri", "Dec", "12"] - * s.scan(/(\w+) (\w+) (\d+) /) # -> nil - * s.captures # -> nil + * s.scan(/(\w+) (\w+) (\d+) (1980)?/) # -> "Fri Dec 12 " + * s.captures # -> ["Fri", "Dec", "12", nil] + * s.scan(/(\w+) (\w+) (\d+) (1980)?/) # -> nil + * s.captures # -> nil */ static VALUE strscan_captures(VALUE self) @@ -1262,9 +1262,13 @@ strscan_captures(VALUE self) new_ary = rb_ary_new2(num_regs); for (i = 1; i < num_regs; i++) { - VALUE str = extract_range(p, - adjust_register_position(p, p->regs.beg[i]), - adjust_register_position(p, p->regs.end[i])); + VALUE str; + if (p->regs.beg[i] == -1) + str = Qnil; + else + str = extract_range(p, + adjust_register_position(p, p->regs.beg[i]), + adjust_register_position(p, p->regs.end[i])); rb_ary_push(new_ary, str); } |