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index 000000000..2f66b217f
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diff --git a/tests/visual_tests/grids/line-symbolizer-expressions-all-256-256-1.0-grid-reference.json b/tests/visual_tests/grids/line-symbolizer-expressions-all-256-256-1.0-grid-reference.json
new file mode 100644
index 000000000..2f66b217f
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diff --git a/tests/visual_tests/grids/point-symbolizer-expressions-256-256-1.0-grid-reference.json b/tests/visual_tests/grids/point-symbolizer-expressions-256-256-1.0-grid-reference.json
new file mode 100644
index 000000000..2f66b217f
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diff --git a/tests/visual_tests/grids/point-symbolizer-expressions-all-256-256-1.0-grid-reference.json b/tests/visual_tests/grids/point-symbolizer-expressions-all-256-256-1.0-grid-reference.json
new file mode 100644
index 000000000..2f66b217f
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new file mode 100644
index 000000000..2f66b217f
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+++ b/tests/visual_tests/grids/polygon-symbolizer-expressions-256-256-1.0-grid-reference.json
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diff --git a/tests/visual_tests/grids/polygon-symbolizer-expressions-all-256-256-1.0-grid-reference.json b/tests/visual_tests/grids/polygon-symbolizer-expressions-all-256-256-1.0-grid-reference.json
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diff --git a/tests/visual_tests/images/polygon-symbolizer-expressions-256-256-1.0-agg-reference.png b/tests/visual_tests/images/polygon-symbolizer-expressions-256-256-1.0-agg-reference.png
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index 000000000..073a55720
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diff --git a/tests/visual_tests/images/polygon-symbolizer-expressions-256-256-1.0-cairo-reference.png b/tests/visual_tests/images/polygon-symbolizer-expressions-256-256-1.0-cairo-reference.png
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index 000000000..07a6cb1a8
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index 000000000..8e74a250c
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diff --git a/tests/visual_tests/images/polygon-symbolizer-expressions-256-256-2.0-cairo-reference.png b/tests/visual_tests/images/polygon-symbolizer-expressions-256-256-2.0-cairo-reference.png
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index 000000000..c4a8da01e
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diff --git a/tests/visual_tests/images/polygon-symbolizer-expressions-all-256-256-1.0-cairo-reference.png b/tests/visual_tests/images/polygon-symbolizer-expressions-all-256-256-1.0-cairo-reference.png
new file mode 100644
index 000000000..07b33c7e5
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diff --git a/tests/visual_tests/images/polygon-symbolizer-expressions-all-256-256-2.0-agg-reference.png b/tests/visual_tests/images/polygon-symbolizer-expressions-all-256-256-2.0-agg-reference.png
new file mode 100644
index 000000000..80d87428a
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diff --git a/tests/visual_tests/images/polygon-symbolizer-expressions-all-256-256-2.0-cairo-reference.png b/tests/visual_tests/images/polygon-symbolizer-expressions-all-256-256-2.0-cairo-reference.png
new file mode 100644
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diff --git a/tests/visual_tests/styles/line-symbolizer-expressions-all.xml b/tests/visual_tests/styles/line-symbolizer-expressions-all.xml
new file mode 100644
index 000000000..880cfe193
--- /dev/null
+++ b/tests/visual_tests/styles/line-symbolizer-expressions-all.xml
@@ -0,0 +1,91 @@
+<Map
+    background-color="#eee"
+    srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+
+    <Style name="bug">
+        <Rule>
+            <Filter>[id] = 'stroke'</Filter>
+            <LineSymbolizer stroke-width='5' stroke='[value]' />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'stroke-width'</Filter>
+            <LineSymbolizer stroke-width='[value]' stroke='#ff0000' />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'stroke-opacity'</Filter>
+            <LineSymbolizer stroke-width='5' stroke='#ff0000' stroke-opacity="[value]" />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'offset'</Filter>
+            <LineSymbolizer stroke-width='5' stroke='#ff0000' offset="[value]" />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'stroke-dasharray'</Filter>
+            <LineSymbolizer stroke-width='5' stroke='#ff0000' stroke-dasharray="[value]" />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'stroke-linejoin'</Filter>
+            <LineSymbolizer stroke-width='5' stroke='#ff0000' stroke-linejoin="[value]" />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'stroke-linecap'</Filter>
+            <LineSymbolizer stroke-width='5' stroke='#ff0000' stroke-linecap="[value]" />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'comp-op'</Filter>
+            <LineSymbolizer stroke-width='5' stroke='#ff0000' comp-op="[value]" />
+        </Rule>
+
+        <Rule>
+            <TextSymbolizer face-name='DejaVu Sans Book' dy='-5'>[id]</TextSymbolizer>
+        </Rule>
+    </Style>
+
+    <Style name="frame">
+        <Rule>
+            <PolygonSymbolizer />
+        </Rule>
+    </Style>
+
+    <!-- 
+      frame is a layer with a single polygon that is used to ensure that m.zoom_all() will zoom the
+      map to a reasonable bounding extent to make the test easy to view with tools like nik2img.py
+      (which calls m.zoom_all() by default). Another approach in >= Mapnik 2.3.x is to just sent a
+      manual `extent` for the CSV datasource.
+    -->
+
+    <Layer name="frame" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>frame</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+wkt|name
+Polygon((-180.0 -125.0, -180.0 125.0, 180.0 125.0, 180.0 -125.0, -180.0 -125.0))|bounds
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+    <!-- 
+      "bug" is a layer that should provide sample data that triggers the bug in question. It is
+      listed after the "frame" layer so that it renders on top and is visible.
+    -->
+
+    <Layer name="bug" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>bug</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+id|value|wkt
+stroke|#ff0000|LineString(-160 -120,160 -120,160 -100)
+stroke-width|5|LineString(-160 -90,160 -90,160 -70)
+stroke-opacity|0.5|LineString(-160 -60,160 -60,160 -40)
+offset|3|LineString(-160 -30,160 -30,160 -10)
+stroke-dasharray|3,3|LineString(-160 0,160 0,160 20)
+stroke-linejoin|bevel|LineString(-160 30,160 30,160 50)
+stroke-linecap|round|LineString(-160 60,160 60,160 80)
+comp-op|minus|LineString(-160 90,160 90,160 110)
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+</Map>
diff --git a/tests/visual_tests/styles/line-symbolizer-expressions.xml b/tests/visual_tests/styles/line-symbolizer-expressions.xml
new file mode 100644
index 000000000..ff3cf7950
--- /dev/null
+++ b/tests/visual_tests/styles/line-symbolizer-expressions.xml
@@ -0,0 +1,71 @@
+<Map
+    background-color="#eee"
+    srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+
+    <Style name="bug">
+        <Rule>
+            <Filter>[id] = 'stroke'</Filter>
+            <LineSymbolizer stroke-width='5' stroke='[value]' />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'stroke-width'</Filter>
+            <LineSymbolizer stroke-width='[value]' stroke='#ff0000' />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'stroke-opacity'</Filter>
+            <LineSymbolizer stroke-width='5' stroke='#ff0000' stroke-opacity="[value]" />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'offset'</Filter>
+            <LineSymbolizer stroke-width='5' stroke='#ff0000' offset="[value]" />
+        </Rule>
+
+        <Rule>
+            <TextSymbolizer face-name='DejaVu Sans Book' dy='-5'>[id]</TextSymbolizer>
+        </Rule>
+    </Style>
+
+    <Style name="frame">
+        <Rule>
+            <PolygonSymbolizer />
+        </Rule>
+    </Style>
+
+    <!-- 
+      frame is a layer with a single polygon that is used to ensure that m.zoom_all() will zoom the
+      map to a reasonable bounding extent to make the test easy to view with tools like nik2img.py
+      (which calls m.zoom_all() by default). Another approach in >= Mapnik 2.3.x is to just sent a
+      manual `extent` for the CSV datasource.
+    -->
+
+    <Layer name="frame" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>frame</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+wkt|name
+Polygon((-180.0 -125.0, -180.0 125.0, 180.0 125.0, 180.0 -125.0, -180.0 -125.0))|bounds
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+    <!-- 
+      "bug" is a layer that should provide sample data that triggers the bug in question. It is
+      listed after the "frame" layer so that it renders on top and is visible.
+    -->
+
+    <Layer name="bug" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>bug</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+id|value|wkt
+stroke|#ff0000|LineString(-160 -120,160 -120,160 -100)
+stroke-width|5|LineString(-160 -90,160 -90,160 -70)
+stroke-opacity|0.5|LineString(-160 -60,160 -60,160 -40)
+offset|3|LineString(-160 -30,160 -30,160 -10)
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+</Map>
diff --git a/tests/visual_tests/styles/point-symbolizer-expressions-all.xml b/tests/visual_tests/styles/point-symbolizer-expressions-all.xml
new file mode 100644
index 000000000..17a0c891e
--- /dev/null
+++ b/tests/visual_tests/styles/point-symbolizer-expressions-all.xml
@@ -0,0 +1,81 @@
+<Map
+    background-color="#eee"
+    srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+
+    <Style name="bug">
+        <Rule>
+            <Filter>[id] = 'file'</Filter>
+            <PointSymbolizer file="[value]" />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'allow-overlap'</Filter>
+            <PointSymbolizer allow-overlap="[value]" file="../../data/images/crosshair16x16.png" />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'opacity'</Filter>
+            <PointSymbolizer opacity="[value]" file="../../data/images/crosshair16x16.png" />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'transform'</Filter>
+            <PointSymbolizer transform="[value]" file="../../data/images/crosshair16x16.png" />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'ignore-placement'</Filter>
+            <PointSymbolizer ignore-placement="[value]" file="../../data/images/crosshair16x16.png" />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'comp-op'</Filter>
+            <PointSymbolizer comp-op="[value]" file="../../data/images/crosshair16x16.png" />
+        </Rule>
+
+        <Rule>
+            <TextSymbolizer dy='-16' face-name='DejaVu Sans Book' halo-fill='#ffffff' halo-radius='1'>[id]</TextSymbolizer>
+        </Rule>
+    </Style>
+
+    <Style name="frame">
+        <Rule>
+            <PolygonSymbolizer />
+        </Rule>
+    </Style>
+
+    <!-- 
+      frame is a layer with a single polygon that is used to ensure that m.zoom_all() will zoom the
+      map to a reasonable bounding extent to make the test easy to view with tools like nik2img.py
+      (which calls m.zoom_all() by default). Another approach in >= Mapnik 2.3.x is to just sent a
+      manual `extent` for the CSV datasource.
+    -->
+
+    <Layer name="frame" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>frame</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+wkt|name
+Polygon((-180.0 -125.0, -180.0 125.0, 180.0 125.0, 180.0 -125.0, -180.0 -125.0))|bounds
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+    <!-- 
+      "bug" is a layer that should provide sample data that triggers the bug in question. It is
+      listed after the "frame" layer so that it renders on top and is visible.
+    -->
+
+    <Layer name="bug" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>bug</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+id|value|wkt
+file|../../data/images/crosshair16x16.png|Point(-130 -70)
+allow-overlap|../../data/images/crosshair16x16.png|Point(0 -70)
+opacity|../../data/images/crosshair16x16.png|Point(130 -70)
+transform|../../data/images/crosshair16x16.png|Point(-130 30)
+ignore-placement|../../data/images/crosshair16x16.png|Point(0 30)
+comp-op|../../data/images/crosshair16x16.png|Point(130 30)
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+</Map>
diff --git a/tests/visual_tests/styles/point-symbolizer-expressions.xml b/tests/visual_tests/styles/point-symbolizer-expressions.xml
new file mode 100644
index 000000000..bab6fb918
--- /dev/null
+++ b/tests/visual_tests/styles/point-symbolizer-expressions.xml
@@ -0,0 +1,56 @@
+<Map
+    background-color="#eee"
+    srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+
+    <Style name="bug">
+        <Rule>
+            <Filter>[id] = 'file'</Filter>
+            <PointSymbolizer file="[value]" />
+        </Rule>
+
+        <Rule>
+            <TextSymbolizer dy='-16' face-name='DejaVu Sans Book' halo-fill='#ffffff' halo-radius='1'>[id]</TextSymbolizer>
+        </Rule>
+    </Style>
+
+    <Style name="frame">
+        <Rule>
+            <PolygonSymbolizer />
+        </Rule>
+    </Style>
+
+    <!-- 
+      frame is a layer with a single polygon that is used to ensure that m.zoom_all() will zoom the
+      map to a reasonable bounding extent to make the test easy to view with tools like nik2img.py
+      (which calls m.zoom_all() by default). Another approach in >= Mapnik 2.3.x is to just sent a
+      manual `extent` for the CSV datasource.
+    -->
+
+    <Layer name="frame" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>frame</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+wkt|name
+Polygon((-180.0 -125.0, -180.0 125.0, 180.0 125.0, 180.0 -125.0, -180.0 -125.0))|bounds
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+    <!-- 
+      "bug" is a layer that should provide sample data that triggers the bug in question. It is
+      listed after the "frame" layer so that it renders on top and is visible.
+    -->
+
+    <Layer name="bug" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>bug</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+id|value|wkt
+file|../../data/images/crosshair16x16.png|Point(-130 -70)
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+</Map>
diff --git a/tests/visual_tests/styles/polygon-symbolizer-expressions-all.xml b/tests/visual_tests/styles/polygon-symbolizer-expressions-all.xml
new file mode 100644
index 000000000..e80d67b79
--- /dev/null
+++ b/tests/visual_tests/styles/polygon-symbolizer-expressions-all.xml
@@ -0,0 +1,71 @@
+<Map
+    background-color="#eee"
+    srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+
+    <Style name="bug">
+        <Rule>
+            <Filter>[id] = 'fill'</Filter>
+            <PolygonSymbolizer fill='[value]' />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'fill-opacity'</Filter>
+            <PolygonSymbolizer fill='#0000ff' fill-opacity='[value]' />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'gamma'</Filter>
+            <PolygonSymbolizer fill='#0000ff' gamma='[value]' />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'comp-op'</Filter>
+            <PolygonSymbolizer fill='#0000ff' comp-op='[value]' />
+        </Rule>
+
+        <Rule>
+            <TextSymbolizer face-name='DejaVu Sans Book' halo-fill='#ffffff' halo-radius='1'>[id]</TextSymbolizer>
+        </Rule>
+    </Style>
+
+    <Style name="frame">
+        <Rule>
+            <PolygonSymbolizer />
+        </Rule>
+    </Style>
+
+    <!-- 
+      frame is a layer with a single polygon that is used to ensure that m.zoom_all() will zoom the
+      map to a reasonable bounding extent to make the test easy to view with tools like nik2img.py
+      (which calls m.zoom_all() by default). Another approach in >= Mapnik 2.3.x is to just sent a
+      manual `extent` for the CSV datasource.
+    -->
+
+    <Layer name="frame" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>frame</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+wkt|name
+Polygon((-180.0 -125.0, -180.0 125.0, 180.0 125.0, 180.0 -125.0, -180.0 -125.0))|bounds
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+    <!-- 
+      "bug" is a layer that should provide sample data that triggers the bug in question. It is
+      listed after the "frame" layer so that it renders on top and is visible.
+    -->
+
+    <Layer name="bug" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>bug</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+id|value|wkt
+fill|#0000ff|Polygon((-160 -120,-20 -120,-40 -80,-100 -90,-160 -120))
+fill-opacity|0.5|Polygon((-160 -70,-20 -70,-40 -30,-100 -40,-160 -70))
+gamma|1.0|Polygon((-160 -20,-20 -20,-40 20,-100 10,-160 -20))
+comp-op|minus|Polygon((-160 30,-20 30,-40 70,-100 60,-160 30))
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+</Map>
diff --git a/tests/visual_tests/styles/polygon-symbolizer-expressions.xml b/tests/visual_tests/styles/polygon-symbolizer-expressions.xml
new file mode 100644
index 000000000..916f30a37
--- /dev/null
+++ b/tests/visual_tests/styles/polygon-symbolizer-expressions.xml
@@ -0,0 +1,66 @@
+<Map
+    background-color="#eee"
+    srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+
+    <Style name="bug">
+        <Rule>
+            <Filter>[id] = 'fill'</Filter>
+            <PolygonSymbolizer fill='[value]' />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'fill-opacity'</Filter>
+            <PolygonSymbolizer fill='#0000ff' fill-opacity='[value]' />
+        </Rule>
+        <Rule>
+            <Filter>[id] = 'gamma'</Filter>
+            <PolygonSymbolizer fill='#0000ff' gamma='[value]' />
+        </Rule>
+
+        <Rule>
+            <TextSymbolizer face-name='DejaVu Sans Book' halo-fill='#ffffff' halo-radius='1'>[id]</TextSymbolizer>
+        </Rule>
+    </Style>
+
+    <Style name="frame">
+        <Rule>
+            <PolygonSymbolizer />
+        </Rule>
+    </Style>
+
+    <!-- 
+      frame is a layer with a single polygon that is used to ensure that m.zoom_all() will zoom the
+      map to a reasonable bounding extent to make the test easy to view with tools like nik2img.py
+      (which calls m.zoom_all() by default). Another approach in >= Mapnik 2.3.x is to just sent a
+      manual `extent` for the CSV datasource.
+    -->
+
+    <Layer name="frame" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>frame</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+wkt|name
+Polygon((-180.0 -125.0, -180.0 125.0, 180.0 125.0, 180.0 -125.0, -180.0 -125.0))|bounds
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+    <!-- 
+      "bug" is a layer that should provide sample data that triggers the bug in question. It is
+      listed after the "frame" layer so that it renders on top and is visible.
+    -->
+
+    <Layer name="bug" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
+        <StyleName>bug</StyleName>
+        <Datasource>
+            <Parameter name="type">csv</Parameter>
+            <Parameter name="inline">
+id|value|wkt
+fill|#0000ff|Polygon((-160 -120,-20 -120,-40 -80,-100 -90,-160 -120))
+fill-opacity|0.5|Polygon((-160 -70,-20 -70,-40 -30,-100 -40,-160 -70))
+gamma|1.0|Polygon((-160 -20,-20 -20,-40 20,-100 10,-160 -20))
+            </Parameter>
+        </Datasource>
+    </Layer>
+
+</Map>
diff --git a/tests/visual_tests/test.py b/tests/visual_tests/test.py
index 96c7b5cdf..7a984a463 100755
--- a/tests/visual_tests/test.py
+++ b/tests/visual_tests/test.py
@@ -219,7 +219,13 @@ files = {
     'tiff-nodata-rgba':{'sizes':[(512,512)]},
     'tiff-nodata-tolerance':{'sizes':[(512,512)]},
     'tiff-nodata-edge-rgba':{'sizes':[(512,512)]},
-    'marker-vs-point':{'sizes':[(512,512)]}
+    'marker-vs-point':{'sizes':[(512,512)]},
+    'line-symbolizer-expressions':{'sizes':[(256,256)]},
+    'line-symbolizer-expressions-all':{'sizes':[(256,256)]},
+    'point-symbolizer-expressions':{'sizes':[(256,256)]},
+    'point-symbolizer-expressions-all':{'sizes':[(256,256)]},
+    'polygon-symbolizer-expressions':{'sizes':[(256,256)]},
+    'polygon-symbolizer-expressions-all':{'sizes':[(256,256)]},
     }
 
 class Reporting: