From: nobu@... Date: 2017-07-10T06:29:41+00:00 Subject: [ruby-core:81989] [Ruby trunk Bug#13736][Assigned] ruby -00 should be the same as setting $/="" Issue #13736 has been updated by nobu (Nobuyoshi Nakada). Description updated Status changed from Open to Assigned Assignee set to matz (Yukihiro Matsumoto) I agree that it's a bug because ruby.1 states `-00 turns Ruby into paragraph mode.` I'm uncertain the reason though, this behavior has been there since 0.95 at least, but 0.49 behaved same as perl. ---------------------------------------- Bug #13736: ruby -00 should be the same as setting $/="" https://bugs.ruby-lang.org/issues/13736#change-65719 * Author: dawg (Andrew Dumke) * Status: Assigned * Priority: Normal * Assignee: matz (Yukihiro Matsumoto) * Target version: * ruby -v: 2.4.1p111 * Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN ---------------------------------------- Suppose you have blocks of text separated by 2 or more \n. A typical text file with records defined by a black line. Given: ``` $ cat lines f1, r1 f2, r1 then 2 \n: f1, r2 then 3 \n: f1,r3 f2,r3 then 4 \n: f1, r4 f2,r4 then 6 \n: f1,r5 ``` The script `$ ruby -00 -F"\n" -lane 'END{p $.}' lines` SHOULD have the same number of records as `$ ruby -F"\n" -lane 'BEGIN{$/=""}; END{p $.}' lines`. It does not not. The script `$ ruby -00 -F"\n" -lane 'END{p $.}' lines` SHOULD have the same number of record as `$ perl -00 -F"\n" -lane 'END{print $.}' lines` Again, it does not. The script `$ ruby -00 -F"\n" -lane 'END{p $.}' lines` shows 8. The other scripts here show 5 -- the correct number. The behavior of the `-00` command switch is not the same as perl's `-00` command switch. It is also not the same as setting `$/=""` in either ruby or perl. The `\n\n` pattern between blocks should be a single record separator even if you have `\n\n\n\n\n` That is true in perl, awk, gawk, and ruby with `$/=""`. It is not true with `ruby -00`. This is a bug. ---Files-------------------------------- ruby_bug.sh (1.39 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: