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Diffstat (limited to 'Doc/Zsh/params.yo')
| -rw-r--r-- | Doc/Zsh/params.yo | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Doc/Zsh/params.yo b/Doc/Zsh/params.yo index 69298855f..c52b6ba91 100644 --- a/Doc/Zsh/params.yo +++ b/Doc/Zsh/params.yo @@ -694,6 +694,15 @@ assignments to, var(pname) act on the referenced parameter. This is explained in the Named References section of ifzman(zmanref(zshexpn))ifnzman(noderef(Parameter Expansion)). +A placeholder var(pname) in a calling function may be initialized in a +called function to reference a local parameter var(rname). In this +case, when the called function returns, var(pname) is no longer +associated with that local. However, the initializer var(rname) +continues to be substituted when `tt($)var(pname)' is used, and +therefore may become a reference to another parameter in the calling +function. It is recommended that placeholders be initialized soon +after they are declared, to make it clear what they reference. + texinode(Parameters Set By The Shell)(Parameters Used By The Shell)(Named References)(Parameters) sect(Parameters Set By The Shell) In the parameter lists that follow, the mark `<S>' indicates that the |