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| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | Doc/Zsh/params.yo | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 30f1742a0..9613de721 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2013-10-19 Barton E. Schaefer <schaefer@zsh.org> + + * 31849: Doc/Zsh/params.yo: note effect of KSH_ZERO_SUBSCRIPT + on the arrays of positional parameters e.g. ${argv[0]} vs. $0 + 2013-10-18 Peter Stephenson <p.w.stephenson@ntlworld.com> * 31846: Src/exec.c: fix NOEXEC option in execsimple(). diff --git a/Doc/Zsh/params.yo b/Doc/Zsh/params.yo index 97087a1c5..9d951bb38 100644 --- a/Doc/Zsh/params.yo +++ b/Doc/Zsh/params.yo @@ -431,9 +431,15 @@ of a shell function, shell script, or the shell itself; see noderef(Invocation), and also noderef(Functions). The parameter var(n), where var(n) is a number, is the var(n)th positional parameter. +The parameter `tt($0)' is a special case, see +noderef(Parameters Set By The Shell). + The parameters tt(*), tt(@) and tt(argv) are arrays containing all the positional parameters; thus `tt($argv[)var(n)tt(])', etc., is equivalent to simply `tt($)var(n)'. +Note that the options tt(KSH_ARRAYS) or tt(KSH_ZERO_SUBSCRIPT) apply +to these arrays as well, so with either of those options set, +`tt(${argv[0]})' is equivalent to `tt($1)' and so on. Positional parameters may be changed after the shell or function starts by using the tt(set) builtin, by assigning to the tt(argv) array, or by direct |