150 lines
No EOL
5.1 KiB
Python
Executable file
150 lines
No EOL
5.1 KiB
Python
Executable file
#!/usr/bin/env python
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import os
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import re
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import sys
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import tempfile
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HAS_LXML = False
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try:
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import lxml.etree as etree
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HAS_LXML = True
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except ImportError:
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try:
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import elementtree.ElementTree as etree
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except ImportError:
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import xml.etree.ElementTree as etree
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def indent(elem, level=0):
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""" http://infix.se/2007/02/06/gentlemen-indent-your-xml
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"""
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i = "\n" + level*" "
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if len(elem):
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if not elem.text or not elem.text.strip():
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elem.text = i + " "
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for e in elem:
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indent(e, level+1)
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if not e.tail or not e.tail.strip():
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e.tail = i + " "
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if not e.tail or not e.tail.strip():
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e.tail = i
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else:
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if level and (not elem.tail or not elem.tail.strip()):
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elem.tail = i
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def name2expr(sym):
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name = sym.attrib['name']
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if re.match('^\[.*\]',name) is None:
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#import pdb;pdb.set_trace()
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print>>sys.stderr,"Fixing %s" % name
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expression = '[%s]' % name
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sym.attrib['name'] = expression
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def handle_attr_changes(sym):
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# http://www.w3schools.com/css/pr_text_text-transform.asp
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# http://code.google.com/p/mapnik-utils/issues/detail?id=32&colspec=ID%20Type%20Status%20Priority%20Component%20Owner%20Summary
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text_transform = sym.attrib.get('text_convert')
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if text_transform:
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# note: css supports text-transform:capitalize but Mapnik does not (yet)
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t_ = {'tolower':'lowercase','toupper':'uppercase','none':'none'}
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new = t_.get(text_transform)
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if new:
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sym.attrib['text_transform'] = new
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else:
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sym.attrib['text_transform'] = text_transform
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sym.attrib.pop('text_convert')
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minimum_distance = sym.attrib.get('min_distance')
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if minimum_distance:
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sym.attrib['minimum_distance'] = minimum_distance
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sym.attrib.pop('min_distance')
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minimum_padding = sym.attrib.get('min_padding')
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if minimum_padding:
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sym.attrib['minimum_padding'] = minimum_padding
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sym.attrib.pop('min_padding')
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def fixup_pointsym(sym):
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if sym.attrib.get('width'):
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sym.attrib.pop('width')
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if sym.attrib.get('height'):
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sym.attrib.pop('height')
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if sym.attrib.get('type'):
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sym.attrib.pop('type')
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def fixup_sym_attributes(sym):
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# copy, so we don't loose after clear()
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attrib = dict(sym.attrib)
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for css in sym.findall('CssParameter'):
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key = css.attrib.get('name')
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value = css.text
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attrib[key] = value
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sym.clear() # remove CssParameter elements
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for k,v in attrib.items(): # insert attributes instead
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sym.attrib[k] = v
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if __name__ == "__main__":
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#required parameters:
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# input_xml: outdated stylesheet file
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# output_file: new stylesheet file
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if len(sys.argv) != 3:
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sys.stderr.write('Usage: %s <input_xml> <output_xml>\n' % os.path.basename(sys.argv[0]))
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sys.exit(1)
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input_xml = sys.argv[1]
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output_xml = sys.argv[2]
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if input_xml == output_xml:
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sys.stderr.write('Sorry, this upgrade script does not allow you to overwrite the input xml, please provide a different output name than "%s"\n' % output_xml)
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sys.exit(1)
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pre_read = open(input_xml,'r')
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if '!ENTITY' in pre_read.read() and not HAS_LXML:
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sys.stderr.write('\nSorry, it appears the xml you are trying to upgrade has entities, which requires lxml (python bindings to libxml2)\n')
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sys.stderr.write('Install lxml with: "easy_install lxml" or download from http://codespeak.net/lxml/\n')
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sys.exit(1)
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tree = etree.parse(input_xml)
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if hasattr(tree,'xinclude'):
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tree.xinclude()
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root = tree.getroot()
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# rename 'bgcolor' to 'background-color'
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if root.attrib.get('bgcolor'):
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root.attrib['background-color'] = root.attrib.get('bgcolor')
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root.attrib.pop('bgcolor')
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# set new minimum_version
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root.set('minimum_version','0.7.2')
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styles = root.findall('Style')
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if not len(styles):
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sys.stderr.write('### Warning, no styles encountered and nothing able to be upgraded!\n')
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else:
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for style in styles:
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for rule in style.findall('Rule'):
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for sym in rule.findall('TextSymbolizer') or []:
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name2expr(sym)
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handle_attr_changes(sym)
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for sym in rule.findall('ShieldSymbolizer') or []:
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name2expr(sym)
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handle_attr_changes(sym)
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for sym in rule.findall('PointSymbolizer') or []:
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fixup_pointsym(sym)
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for sym in rule.findall('LineSymbolizer') or []:
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fixup_sym_attributes(sym)
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for sym in rule.findall('PolygonSymbolizer') or []:
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fixup_sym_attributes(sym)
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for sym in rule.findall('RasterSymbolizer') or []:
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fixup_sym_attributes(sym)
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for sym in rule.findall('BuildingSymbolizer') or []:
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fixup_sym_attributes(sym)
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# TODO - make forcing indent an option
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indent(root)
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tree.write(output_xml) |