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| author | Bart Schaefer <schaefer@ipost.com> | 2021-02-04 17:01:07 -0800 |
|---|---|---|
| committer | Bart Schaefer <schaefer@ipost.com> | 2021-02-04 17:01:07 -0800 |
| commit | 6db45b94d8ed7c8878e32f8b5ca47b6aa84c4cb2 (patch) | |
| tree | 3dd8ee02a3a357ac5e45f9266f0d3eee75d38764 | |
| parent | 9120d1e841b0813f1c71d55f77c3d18fc8318187 (diff) | |
| download | zsh-6db45b94d8ed7c8878e32f8b5ca47b6aa84c4cb2.tar.gz zsh-6db45b94d8ed7c8878e32f8b5ca47b6aa84c4cb2.tar.xz zsh-6db45b94d8ed7c8878e32f8b5ca47b6aa84c4cb2.zip | |
47889: Update csh aliasing equivalences
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | Etc/FAQ.yo | 10 |
2 files changed, 9 insertions, 5 deletions
diff --git a/ChangeLog b/ChangeLog index d5725d379..10d6b8f09 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,7 @@ +2021-02-04 Bart Schaefer <schaefer@zsh.org> + + * 47889: Etc/FAQ.yo: Update csh alias equivalences (section 2.3) + 2021-02-03 Joshua Krusell <js.shirin@gmail.com> * 47899: Src/Modules/zutil.c, Test/V12zparseopts.ztst: Improved diff --git a/Etc/FAQ.yo b/Etc/FAQ.yo index a4ffba688..7aeddd89c 100644 --- a/Etc/FAQ.yo +++ b/Etc/FAQ.yo @@ -715,7 +715,8 @@ label(23) enumeration( myeit() If the csh alias references "parameters" (tt(\!:1), tt(\!*) etc.), then in zsh you need a function (referencing tt($1), tt($*) etc.). - Otherwise, you can use a zsh alias. + In recent versions of zsh this can be done by defining an anonymous + function within the alias. Otherwise, a simple zsh alias suffices. myeit() If you use a zsh function, you need to refer _at_least_ to tt($*) in the body (inside the tt({ })). Parameters don't magically @@ -759,7 +760,7 @@ label(23) parameters. (E.g., in a csh alias, a reference to tt(\!:5) will cause an error if 4 or fewer arguments are given; in a zsh function, tt($5) is the empty string if there are 4 or fewer - parameters.) + parameters. Force an error in this example by using tt(${5?}).) myeit() To begin a zsh alias with a - (dash, hyphen) character, use mytt(alias --): @@ -780,9 +781,8 @@ label(23) ) mytt(l) in the function definition is in command position and is expanded as an alias, defining mytt(/bin/ls) and mytt(-F) as functions which call - mytt(/bin/ls), which gets a bit recursive. This can be avoided if you use - mytt(function) to define a function, which doesn't expand aliases. It is - possible to argue for extra warnings somewhere in this mess. + mytt(/bin/ls), which gets a bit recursive. Recent versions of zsh treat + this as an error, but older versions silently create the functions. One workaround for this is to use the "function" keyword instead: verb( |