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Sat, 07 Jan 2023 05:52:14 -0800 (PST) MIME-Version: 1.0 References: <361494476.8470860.1673025799682@mail.virginmedia.com> In-Reply-To: From: Roman Perepelitsa Date: Sat, 7 Jan 2023 14:52:02 +0100 Message-ID: Subject: Re: Subscript flag (i) not working correctly on empty strings? To: Philippe Altherr Cc: Bart Schaefer , Peter Stephenson , Zsh hackers list Content-Type: text/plain; charset="UTF-8" X-Seq: 51285 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: On Sat, Jan 7, 2023 at 2:46 PM Philippe Altherr wrote: > > Thanks for the fix. > > For the record, I was trying to do something like this: > >> separator_index=$input[(i):] >> if [[ $separator_index -le $#input ]]; then >> # Found separator >> ... >> fi Whenever I need to check whether a string/array contains a character/element, I do it like this: if (( $input[(I):] )); then print 'input contains colon' fi It's nice that $input is referenced only once. It's also nice that the "contains" condition has no operators. Roman.