From c51bac877e7481a7aa2e1fe012e4d22c46d33aa1 Mon Sep 17 00:00:00 2001
From: Artem Pavlenko <artem@mapnik.org>
Date: Fri, 9 Apr 2010 18:46:56 +0000
Subject: [PATCH] + add map_xml upgrade script (mapnik->mapnik2)

---
 utils/upgrade_map_xml/upgrade_map_xml.py | 59 ++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100755 utils/upgrade_map_xml/upgrade_map_xml.py

diff --git a/utils/upgrade_map_xml/upgrade_map_xml.py b/utils/upgrade_map_xml/upgrade_map_xml.py
new file mode 100755
index 000000000..151649a57
--- /dev/null
+++ b/utils/upgrade_map_xml/upgrade_map_xml.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+import os
+import sys
+from lxml import etree
+from lxml import objectify
+
+def name2expr(sym):
+    name = sym.attrib['name']
+    expression = '[%s]' % name
+    sym.attrib['name'] = expression    
+
+def fixup_pointsym(sym):
+    if sym.attrib.get('width'):
+        sym.attrib.pop('width')
+    if sym.attrib.get('height'):
+        sym.attrib.pop('height')
+    #if sym.attrib.get('type'):
+    #    sym.attrib.pop('type')
+
+def fixup_sym_attributes(sym):
+    attrib = {}
+    for css in sym.CssParameter:
+        key = css.attrib.get('name')
+        value = css.text
+        attrib[key]=value
+    sym.clear() # remove CssParameter children
+    for k,v in attrib.items(): # insert attributes
+        sym.attrib[k] = v
+    
+
+if __name__ == "__main__":
+
+    if len(sys.argv) != 2:
+        print>>sys.stderr,'Usage: %s <map_xml_file>' % sys.argv[0]
+        sys.exit(1)
+        
+    xml = sys.argv[1]
+    tree = objectify.parse(xml)
+    root = tree.getroot()
+    for style in root.Style:
+        if len(style.Rule):
+            for rule in style.Rule:
+                if hasattr(rule,'TextSymbolizer'):
+                    for sym in rule.TextSymbolizer:
+                        name2expr(sym)
+                if hasattr(rule,'ShieldSymbolizer'):
+                    for sym in rule.ShieldSymbolizer:
+                        name2expr(sym) 
+                if hasattr(rule,'PointSymbolizer'):
+                    for sym in rule.PointSymbolizer:
+                        fixup_pointsym(sym)
+                if hasattr(rule,'LineSymbolizer'):
+                    for sym in rule.LineSymbolizer:
+                        fixup_sym_attributes(sym)
+                        
+                            
+                
+    print etree.tostring(tree,pretty_print=True,standalone=True)
+