From: Emily Seville <emilyseville7cf@gmail.com> To: zsh-workers@zsh.org Subject: Problems in `zshmisc` manual page Date: Sun, 24 Apr 2022 17:12:54 +1000 [thread overview] Message-ID: <CAGVHxD2-eb2T8oDfD7HutcnYA7t0BCfpDiQm_bEWG-xnzi7Atw@mail.gmail.com> (raw) [-- Attachment #1: Type: text/plain, Size: 3325 bytes --] There are several issues in complex commands descriptions. *if command* > > if list then list [ elif list then list ] ... [ else list ] fi > The if list is executed, and if it returns a zero exit > status, the then list is executed. Otherwise, the elif list is executed > and if its status is zero, the then list is executed. If > each elif list returns nonzero status, the else list is executed. There is no mention of a terminator after *list*. It's better to rewrite command description as: if list *term* then list *term* [ elif list *term *then list *term *] ... [ > else list *term *] fi The if list is executed, and if it returns a zero exit > status, the then list is executed. Otherwise, the elif list is executed > and if its status is zero, the then list is executed. If > each elif list returns nonzero status, the else list is executed. *for command* > for name ... [ in word ... ] term do list done > Expand the list of words, and set the parameter name to each > of them in turn, executing list each time. If the `in word' is > omitted, use the positional parameters instead of the words. > The term consists of one or more newline or ; which > terminate the words, and are optional when the `in word' is omitted. > More than one parameter name can appear before the list of > words. If N names are given, then on each execution of the loop the > next N words are assigned to the corresponding parameters. > If there are more names than remaining words, the remaining parame‐ > ters are each set to the empty string. Execution of the > loop ends when there is no remaining word to assign to the first name. > It is only possible for in to appear as the first name in > the list, else it will be treated as marking the end of the list. It's better to write at my glance: > for name ... [ in word ... ] term do list *term* done > Expand the list of words, and set the parameter name to each > of them in turn, executing list each time. If the `in word' is > omitted, use the positional parameters instead of the words. > The term consists of one or more newline or ; which > terminate the words, and are optional when the `in word' is omitted. > More than one parameter name can appear before the list of > words. If N names are given, then on each execution of the loop the > next N words are assigned to the corresponding parameters. > If there are more names than remaining words, the remaining parame‐ > ters are each set to the empty string. Execution of the > loop ends when there is no remaining word to assign to the first name. > It is only possible for in to appear as the first name in > the list, else it will be treated as marking the end of the list. The same issues applies for: - for (second form) - while - until - repeat -- *# Best regards, Emily Grace Seville.* *[contacts]* site *=* "*https://emilyseville7cfg.github.io/about/ <https://emilyseville7cfg.github.io/about/>"* phone *=* "+79247259451*"* [-- Attachment #2: Type: text/html, Size: 5350 bytes --]
next reply other threads:[~2022-04-24 7:13 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-04-24 7:12 Emily Seville [this message] 2022-04-24 8:12 ` Lawrence Velázquez
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