#!/bin/sh
set -eu

catalog=etc/xml/catalog
uris="http://cdn.docbook.org/release/xsl-nons http://docbook.sourceforge.net/release/xsl"

if ! command -v xmlcatalog >/dev/null 2>&1 || [ ! -f "$catalog" ]; then
    exit 0
fi

for uri in $uris; do
    xmlcatalog --noout --del "$uri/current" "$catalog" 2>/dev/null || true
    xmlcatalog --noout --del "$uri/current" "$catalog" 2>/dev/null || true
done