From 20553e823491d42bc3f0cf84928a752858d60de5 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 6 Aug 2014 12:35:11 +0530
Subject: [PATCH] zsh completion: Case independent extension matching

---
 src/calibre/linux.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/calibre/linux.py b/src/calibre/linux.py
index 6f70f50aeb..84ebd1db7d 100644
--- a/src/calibre/linux.py
+++ b/src/calibre/linux.py
@@ -239,9 +239,8 @@ class ZshCompleter(object):  # {{{
                       opf_opts=('--opf',), file_map={}):
         if not self.dest:
             return
-        exts = set(exts).union(x.upper() for x in exts)
-        pats = ('*.%s'%x for x in exts)
-        extra = ("'*:filename:_files -g \"%s\"' "%' '.join(pats),)
+        exts = sorted(set(exts))
+        extra = (''''*:filename:_files -g '(#i)*.(%s)' ''' % '|'.join(exts),)
         opts = '\\\n  '.join(tuple(self.get_options(
             op(), cover_opts=cover_opts, opf_opts=opf_opts, file_map=file_map)) + extra)
         txt = '_arguments -s \\\n  ' + opts