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Date: Thu, 29 Oct 2015 19:08:07 +0000
From: Stephane Chazelas <stephane.chazelas@gmail.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: regexp-replace and ^
Message-ID: <20151029190807.GA18037@chaz.gmail.com>
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User-Agent: Mutt/1.5.21 (2010-09-15)

The way regexp-replace works ^ is going to match in several
places:

$ a=aaa zsh -c 'autoload regexp-replace; regexp-replace a "^a" b; echo $a'
bbb

That should probably be documented. (would also affect the \<, \>, \b, and
various look-ahead operators in PCRE).

Or maybe have a (E) for ERE and (P) for PCRE parameter expansion flags for the
${var//pattern/replacement}.

-- 
Stephane