Just another Ruby porter,

■ GNU sed 4.3 released

ああ、とうとう名無しのラベルは受け付けなくなってしまった。
バグ認定だ。

** Bug fixes

  sed no longer accepts a ":" command without a label; before, it would
  treat that as defining a label whose name is empty, and subsequent
  label-free "t" and "b" commands would use that label. Now, sed emits
  a diagnostic and fails for that invalid construct.

エラーになってしまう。

% echo | sed :

% sed --version | head -n1 
sed (GNU sed) 4.2.2
% echo | ~/local/bin/sed :
/home/eban/local/bin/sed: -e expression #1, char 1: ":" lacks a label
% ~/local/bin/sed --version | head -n1
/home/eban/local/bin/sed (GNU sed) 4.3

それはそれとして、正規表現マッチが10倍速くなるってまじか。

** Improvements

  sed's regular expression matching is now typically 10x faster