mapnik/tests/visual_tests/styles/harfbuzz.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE Map>
<Map background-color="white" srs="+proj=latlong +datum=WGS84">
    <Layer name="layer" srs="+proj=latlong +datum=WGS84">
            <StyleName>My Style</StyleName>
            <Datasource>
                <Parameter name="type">shape</Parameter>
                <Parameter name="file">../data/points.shp</Parameter>
            </Datasource>
    </Layer>


    <Style name="My Style">
        <Rule>
            <PointSymbolizer/>
        </Rule>
        <Rule>
            <!-- This is an easy test to ensure text shaping actually works. Ligatures are rendered when harfbuzz is used, but not with the old text rendering system. -->
            <Filter>[nr] = "3"</Filter>
            <TextSymbolizer face-name="DejaVu Sans Book" size="16" placement="point" dy="-16">"Ligature: fi"</TextSymbolizer>
            <TextSymbolizer face-name="DejaVu Sans Book" size="16" placement="point" dy="16">"mixed نامجو Text"</TextSymbolizer>
        </Rule>
        <Rule>
            <!-- In addition to the problem mentioned in the bug report (which seems to be gone) this the position is calculated incorrectly -->
            <Filter>[nr] = "1"</Filter>
            <TextSymbolizer face-name="DejaVu Sans Book" size="16" placement="point" dy="-16">"نامجو 17"</TextSymbolizer>
            <TextSymbolizer face-name="DejaVu Sans Book" size="10" placement="point" dy="16">"#519"</TextSymbolizer>
        </Rule>
        <Rule>
            <Filter>[nr] = "6"</Filter>
            <TextSymbolizer face-name="DejaVu Sans Book" size="36" placement="point" dy="-16">"زنقة الملاح"</TextSymbolizer>
            <TextSymbolizer face-name="DejaVu Sans Book" size="10" placement="point" dy="16">"#1154"</TextSymbolizer>
        </Rule>
        <Rule>
            <Filter>[nr] = "9"</Filter>
            <TextSymbolizer face-name="DejaVu Sans Book" size="36" placement="point" dy="-16">"أڭادير"</TextSymbolizer>
            <TextSymbolizer face-name="DejaVu Sans Book" size="10" placement="point" dy="16">"#1146"</TextSymbolizer>
        </Rule>
        <Rule>
            <DebugSymbolizer />
        </Rule>
    </Style>
</Map>