mos-filter.xsl

<?xml version="1.0" encoding="UTF-8"?>
<!--
 | ============================================================================
 |
 | Filters MOSMIX-KML for forecast stations with identifiers statrting with
 | 10 (German stations)
 |
 | ============================================================================
 |
 | Author: Michael Buchfink
 |
 | ============================================================================
 |
 | Last updated: 15.03.2018
 |
 | ============================================================================
 |
 | Licensed to the Apache Software Foundation (ASF) under one
 | or more contributor license agreements.  See the NOTICE file
 | distributed with this work for additional information
 | regarding copyright ownership.  The ASF licenses this file
 | to you under the Apache License, Version 2.0 (the
 | "License"); you may not use this file except in compliance
 | with the License.  You may obtain a copy of the License at
 |
 |   http://www.apache.org/licenses/LICENSE-2.0
 |
 | Unless required by applicable law or agreed to in writing,
 | software distributed under the License is distributed on an
 | "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 | KIND, either express or implied.  See the License for the
 | specific language governing permissions and limitations
 | under the License.
 |
 -->
<xsl:stylesheet version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:dwd="https://opendata.dwd.de/weather/lib/pointforecast_dwd_extension_V1_0.xsd"
  xmlns:kml="http://www.opengis.net/kml/2.2">

  <xsl:output omit-xml-declaration="yes" indent="yes"/>
  <xsl:strip-space elements="*"/>

  <!-- identity template -->
  <xsl:template match="@* | node()">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
  </xsl:template>

  <!-- override the above template for certain Placemark elements; output nothing. -->
  <xsl:template match="kml:Placemark[
     not(kml:name[starts-with(text(),'10')] or kml:name[starts-with(text(),'M')])]">
  </xsl:template>
</xsl:stylesheet>