# HG changeset patch
# User Franz Glasner <fzglas.hg@dom66.de>
# Date 1670373459 -3600
# Node ID 9b388927b12b662da8a8ffae175a0b4feafc2367
# Parent  673505e96cea30ac739f9eaabad0b17bc5e8ec80
FIX: Use BREs with grep because is handles "+" characters in package names properly.

Otherwise a package like "lucene++" given an error:

   egrep: repetition-operator operand invalid

diff -r 673505e96cea -r 9b388927b12b sbin/check-ports
--- a/sbin/check-ports	Mon Dec 05 16:01:54 2022 +0100
+++ b/sbin/check-ports	Wed Dec 07 01:37:39 2022 +0100
@@ -161,7 +161,12 @@
         # "grep" does a fast pre-selection, reading, parsing and comparing is done for
         # exact matching.
         #
-        _lines=$(egrep '^'"${_package}" "${_indexdir}/${_indexfile}")
+        # Use BREs because a `+' char needs to be handled as an ordinary
+        # character (e.g. for the "lucene++" package).
+        # Note that `^' at the start of an RE is not an ordinary
+        # character. See re_format(7).
+        #
+        _lines=$(/usr/bin/grep -G '^'"${_package}" "${_indexdir}/${_indexfile}")
         while read _line ; do
             _fqpn="${_line%%|*}"
             _n=${_fqpn%-*}