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boundary="------------F7siOF0cSPUI6eFsxfIoKGjJ" Message-id: <707f3c88-b222-45b8-9512-30830ec02a88@eastlink.ca> Date: Sun, 31 Dec 2023 07:53:01 -0800 MIME-version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: zmv exits from function Content-language: en-US To: zsh-users@zsh.org References: <69024621-9e60-474f-9c32-4edaecc3ff68@eastlink.ca> <07ddd352-0c1b-467e-9d4c-ff46020ccf41@eastlink.ca> From: Ray Andrews In-reply-to: X-Seq: 29394 Archived-At: X-Loop: zsh-users@zsh.org Errors-To: zsh-users-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-users-request@zsh.org X-no-archive: yes List-Id: List-Help: , List-Subscribe: , List-Unsubscribe: , List-Post: List-Owner: List-Archive: This is a multi-part message in MIME format. --------------F7siOF0cSPUI6eFsxfIoKGjJ Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 2023-12-30 19:58, Bart Schaefer wrote: > No, the parsing is all done first: "{ ... } always { ... }" is a full > expression. Zsh "knows" the always-part is coming before it even > starts executing the first block. > So that's multi-pass parsing.  Anyway, first I've seen of anything like it.  I'm reading up on it right now.  'always' is a reserved word then.  Bottom line is that I now have a tool for handling 'no files' situations.  Good to know because there could be any number of housekeeping functions that might want to clean up or rename some group of files if they exist but it's not a problem if they don't. --------------F7siOF0cSPUI6eFsxfIoKGjJ Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit


On 2023-12-30 19:58, Bart Schaefer wrote:
No, the parsing is all done first: "{ ... } always { ... }" is a full
expression.
Zsh "knows" the always-part is coming before it even 
starts executing the first block.

So that's multi-pass parsing.  Anyway, first I've seen of anything like it.  I'm reading up on it right now.  'always' is a reserved word then.  Bottom line is that I now have a tool for handling 'no files' situations.  Good to know because there could be any number of housekeeping functions that might want to clean up or rename some group of files if they exist but it's not a problem if they don't.



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