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29602 etc. etc.: description of filename extension

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Peter Stephenson 2011-07-28 09:18:34 +00:00
parent b12242cb3f
commit 6844a63daf
2 changed files with 17 additions and 4 deletions
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8
ChangeLog
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@ -1,3 +1,9 @@
2011-07-28 Peter Stephenson <pws@csr.com>
* 29602 and subsequent changes: Doc/Zsh/expn.yo: clarify meaning
of filename extension in :r and :e modifiers (which were
slightly inconsistent).
2011-07-27 Peter Stephenson <p.w.stephenson@ntlworld.com>
* 29561: Test/A04redirect.ztst: this bit didn't get committed,
@ -15170,5 +15176,5 @@
*****************************************************
* This is used by the shell to define $ZSH_PATCHLEVEL
* $Revision: 1.5409 $
* $Revision: 1.5410 $
*****************************************************

13
Doc/Zsh/expn.yo
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@ -236,7 +236,10 @@ a glob qualifier unless a file of the same name is found in the
current directory.
)
item(tt(e))(
Remove all but the extension.
Remove all but the part of the filename extension following the `tt(.)';
see the definition of the filename extension in the description of the
tt(r) modifier below. Note that according to that definition the result
will be empty if the string ends with a `tt(.)'.
)
item(tt(h))(
Remove a trailing pathname component, leaving the head. This works
@ -259,8 +262,12 @@ item(tt(Q))(
Remove one level of quotes from the substituted words.
)
item(tt(r))(
Remove a filename extension of the form `tt(.)var(xxx)', leaving
the root name.
Remove a filename extension leaving the root name. Strings with no
filename extension are not altered. A filename
extension is a `tt(.)' followed by any number of characters (including
zero) that are neither `tt(.)' nor `tt(/)' and that continue to the end
of the string. For example, the extension of
`tt(foo.orig.c)' is `tt(.c)', and `tt(dir.c/foo)' has no extension.
)
item(tt(s/)var(l)tt(/)var(r)[tt(/)])(
Substitute var(r) for var(l) as described below.