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authordana <dana@dana.is>2025-05-19 18:30:08 -0500
committerdana <dana@dana.is>2025-05-19 18:31:56 -0500
commit87c055fb4d076c0d9bfffbef16ac8dd9348903df (patch)
treecd95880bfd8f2849d6af0bb43efa0ebb90754e75 /Doc
parent53633: docs: add note about `compadd -o` requiring explicit group name (diff)
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53636: docs: clarify valid parameter names
Diffstat (limited to 'Doc')
-rw-r--r--Doc/Zsh/params.yo10
1 files changed, 7 insertions, 3 deletions
diff --git a/Doc/Zsh/params.yo b/Doc/Zsh/params.yo
index c52b6ba91..59e964519 100644
--- a/Doc/Zsh/params.yo
+++ b/Doc/Zsh/params.yo
@@ -4,9 +4,13 @@ cindex(parameters)
cindex(variables)
sect(Description)
A parameter has a name, a value, and a number of attributes.
-A name may be any sequence of alphanumeric
-characters and underscores, or the single characters
-`tt(*)', `tt(@)', `tt(#)', `tt(?)', `tt(-)', `tt($)', or `tt(!)'.
+User-assignable parameter names may contain alphanumeric characters,
+underscores, and (per the description of namespaces below) dots.
+They may not begin with a number, except for positional parameters
+(tt($1), tt($2), etc.), whose names consist em(only) of numbers. There
+are also special shell parameters with single-character names such as
+`tt(*)', `tt(@)', `tt(#)', `tt(?)', `tt(-)', `tt($)', and `tt(!)'.
+These are described below.
A parameter whose name begins with an alphanumeric or underscore is also
referred to as a em(variable).