From 6844a63daf3e372e99dc6722304dc9cc4fcc5095 Mon Sep 17 00:00:00 2001 From: Peter Stephenson Date: Thu, 28 Jul 2011 09:18:34 +0000 Subject: 29602 etc. etc.: description of filename extension --- Doc/Zsh/expn.yo | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'Doc') diff --git a/Doc/Zsh/expn.yo b/Doc/Zsh/expn.yo index ce122cade..7060a49b4 100644 --- a/Doc/Zsh/expn.yo +++ b/Doc/Zsh/expn.yo @@ -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. -- cgit 1.4.1