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Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.1 Subject: Re: Pattern bug on (a*|)~^(*b) To: Bart Schaefer Cc: zsh-workers@zsh.org References: <599e3c13-53a5-1823-6d0d-68dd722967d9@crans.org> Content-Language: en-US, en-AU, fr From: Johan Grande In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Seq: 51991 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: , List-Subscribe: , List-Unsubscribe: , List-Post: List-Owner: List-Archive: Le 25/07/2023 à 20:35, Bart Schaefer a écrit : > On Tue, Jul 25, 2023 at 6:19 AM Johan Grande wrote: >> >> In zsh 5.8.1 (x86_64-ubuntu-linux-gnu) with extended_glob, >> >> [[ "ab" = (|a*)~^(*b) ]] >> >> incorrectly (unless I'm mistaken) returns 1. > > This is not precisely a bug, it's expected behavior. Alternation with > (x|y) tries the patterns in left-to-right order and has lower > precedence than p~q (despite the parens). I don't get it. What are the different patterns tried during this left-to-right evaluation of (|a*)~^(*b) ? -- Johan