import wrpylib.wrvalidators
import wrpylib.mwmarkup
+WRMAP_POINT_TYPES = ['gasthaus', 'haltestelle', 'parkplatz', 'achtung', 'punkt']
+WRMAP_LINE_TYPES = ['rodelbahn', 'gehweg', 'alternative', 'lift', 'anfahrt', 'linie']
+
+
+class ParseError(RuntimeError):
+ """Exception used by some of the functions"""
+ pass
+
def _conv(fnct, value, fieldname):
"""Internal function.
return results
-def parse_googlemap(wikitext):
- """Parses the (unicode) u'<googlemap ...>content</googlemap>' of the googlemap extension
- out of a page. If wikitext does not contain the googlemaps extension text None is returned.
- If the googlemap contains invalid formatted lines, a RuntimeError is raised.
-
- :param wikitext: wikitext containing the template. Example:
-
- wikitext = '''
- <googlemap version="0.9" lat="47.113291" lon="11.272337" zoom="15">
- (Parkplatz)47.114958,11.266026
- Parkplatz
-
- (Gasthaus) 47.114715, 11.266262, Alt Bärnbad (Gasthaus)
- 6#FF014E9A
- 47.114715,11.266262
- 47.114135,11.268381
- 47.113421,11.269322
- 47.11277,11.269979
- 47.112408,11.271119
- </googlemap>
- '''
- :returns: (attributes, GeoJSON as Python datatypes)
+def googlemap_to_wrmap(attributes, coords, paths):
+ """Converts the output of parse_googlemap to the GeoJSON format wrmap uses.
+ :returns: (GeoJSON as nested Python datatypes)
"""
- center, zoom, coords, paths = wrpylib.mwmarkup.parse_googlemap(wikitext)
json_features = []
# point
for point in coords:
lon, lat, symbol, title = point
- properties = {'type': symbol}
- if title: properties['name'] = title
+ properties = {'type': 'punkt' if symbol is None else symbol.lower()}
+ if title is not None: properties['name'] = title
json_features.append({
- 'type': 'feature',
+ 'type': 'Feature',
'geometry': {'type': 'Point', 'coordinates': [lon, lat]},
'properties': properties})
# path
for path in paths:
style, entries = path
- properties = {'type': 'line'}
+ style = style.lower()
+ PATH_TYPES = {u'6#ff014e9a': u'rodelbahn', u'6#ffe98401': u'gehweg', u'6#ff7f7fff': u'alternative', u'3#ff000000': u'lift', u'3#ffe1e100': u'anfahrt'}
+ if PATH_TYPES.has_key(style):
+ properties = {'type': PATH_TYPES[style]}
+ else:
+ properties = {'type': 'line'}
+ properties['dicke'] = style[0]
+ properties['farbe'] = style[4:]
json_features.append({
- 'type': 'feature',
+ 'type': 'Feature',
'geometry': {
'type': 'LineString',
'coordinates': [[lon, lat] for lon, lat, symbol, title in entries]},
'properties': properties})
- json = {'type': 'FeatureCollection', 'features': json_features}
- return {'lon': center[0], 'lat': center[1], 'zoom': zoom}, json
+ geojson = {
+ 'type': 'FeatureCollection',
+ 'features': json_features,
+ 'properties': attributes}
+ return geojson
def parse_wrmap_coordinates(coords):
def parse_wrmap(wikitext):
- """Parses the (unicode) u'<wrmap ...>content</wrmap>' of the Winterrodeln wrmap extension
- out of a page. If wikitext does not contain the googlemaps extension text None is returned.
- If the googlemap contains invalid formatted lines, a RuntimeError is raised.
+ """Parses the (unicode) u'<wrmap ...>content</wrmap>' of the Winterrodeln wrmap extension.
+ If wikitext does not contain the <wrmap> tag or if the <wrmap> tag contains
+ invalid formatted lines, a ParseError is raised.
+ Use wrpylib.mwmarkup.find_tag(wikitext, 'wrmap') to find the wrmap tag within an arbitrary
+ wikitext before using this function.
- :param wikitext: wikitext containing the template. Example:
+ :param wikitext: wikitext containing only the template. Example:
wikitext = u'''
<wrmap lat="47.2417134" lon="11.21408895" zoom="14" width="700" height="400">
</rodelbahn>
</wrmap>
'''
- :returns: (attributes, GeoJSON as Python datatypes)
+ :returns: GeoJSON as nested Python datatype
"""
# parse XML
try:
wrmap_xml = xml.etree.ElementTree.fromstring(wikitext.encode('utf-8'))
except xml.etree.ElementTree.ParseError as e:
row, column = e.position
- raise RuntimeError("XML parse error on row {}, column {}: {}".format(row, column, e))
- # assert(in_array($tagname, array('wrmap', 'wrgmap'))); # TODO
+ raise ParseError("XML parse error on row {}, column {}: {}".format(row, column, e))
+ if wrmap_xml.tag not in ['wrmap', 'wrgmap']:
+ raise ParseError('No valid tag name')
# convert XML to geojson (http://www.geojson.org/geojson-spec.html)
json_features = []
- point_type = {'gasthaus': 'inn', 'haltestelle': 'busstop', 'parkplatz': 'carpark', 'achtung': 'attention', 'punkt': 'point'}
- line_type = {'rodelbahn': 'sledrun', 'gehweg': 'walk', 'alternative': 'alternative', 'lift': 'lift', 'linie': 'line'}
for feature in wrmap_xml:
# determine feature type
- is_point = point_type.has_key(feature.tag)
- is_line = line_type.has_key(feature.tag)
+ is_point = feature.tag in WRMAP_POINT_TYPES
+ is_line = feature.tag in WRMAP_LINE_TYPES
if (not is_point and not is_line):
- raise RuntimeError('Unknown element <{}>.'.format(feature.tag))
+ raise ParseError('Unknown element <{}>.'.format(feature.tag))
# point
if is_point:
- properties = {'type': point_type[feature.tag]}
+ properties = {'type': feature.tag}
allowed_properties = set(['name', 'wiki'])
wrong_properties = set(feature.attrib.keys()) - allowed_properties
if len(wrong_properties) > 0:
- raise RuntimeError("The attribute '{}' is not allowed at <{}>.".format(list(wrong_properties)[0], feature.tag))
+ raise ParseError("The attribute '{}' is not allowed at <{}>.".format(list(wrong_properties)[0], feature.tag))
properties.update(feature.attrib)
coordinates = parse_wrmap_coordinates(feature.text)
if len(coordinates) != 1:
- raise RuntimeError('The element <{}> has to have exactly one coordinate pair.'.format(feature.tag))
+ raise ParseError('The element <{}> has to have exactly one coordinate pair.'.format(feature.tag))
json_features.append({
- 'type': 'feature',
+ 'type': 'Feature',
'geometry': {'type': 'Point', 'coordinates': coordinates[0]},
'properties': properties})
# line
if is_line:
- properties = {'type': line_type[feature.tag]}
+ properties = {'type': feature.tag}
allowed_properties = set(['farbe', 'dicke'])
wrong_properties = set(feature.attrib.keys()) - allowed_properties
if len(wrong_properties) > 0:
- raise RuntimeError("The attribute '{}' is not allowed at <{}>.".format(list(wrong_properties)[0], feature.tag))
+ raise ParseError("The attribute '{}' is not allowed at <{}>.".format(list(wrong_properties)[0], feature.tag))
if feature.attrib.has_key('farbe'):
if not re.match('#[0-9a-fA-F]{6}$', feature.attrib['farbe']):
- raise RuntimeError('The attribute "farbe" has to have a format like "#a0bb43".')
+ raise ParseError('The attribute "farbe" has to have a format like "#a0bb43".')
properties['strokeColor'] = feature.attrib['farbe'] # e.g. #a200b7
if feature.attrib.has_key('dicke'):
try:
properties['strokeWidth'] = int(feature.attrib['dicke']) # e.g. 6
except ValueError:
- raise RuntimeError('The attribute "farbe" has to be an integer.')
+ raise ParseError('The attribute "dicke" has to be an integer.')
json_features.append({
- 'type': 'feature',
+ 'type': 'Feature',
'geometry': {'type': 'LineString', 'coordinates': parse_wrmap_coordinates(feature.text)},
'properties': properties})
- json = {
+ # attributes
+ properties = {}
+ for k, v in wrmap_xml.attrib.iteritems():
+ if k in ['lat', 'lon']:
+ try:
+ properties[k] = float(v)
+ except ValueError:
+ raise ParseError('Attribute "{}" has to be a float value.'.format(k))
+ elif k in ['zoom', 'width', 'height']:
+ try:
+ properties[k] = int(v)
+ except ValueError:
+ raise ParseError('Attribute "{}" has to be an integer value.'.format(k))
+ else:
+ raise ParseError('Unknown attribute "{}".'.format(k))
+
+ geojson = {
'type': 'FeatureCollection',
- 'features': json_features}
+ 'features': json_features,
+ 'properties': properties}
- # attributes # TODO: check
- attributes = {}
- attributes['lat'] = float(wrmap_xml.attrib.get('lat', 47.267648)) # center lat
- attributes['lon'] = float(wrmap_xml.attrib.get('lon', 11.404655)) # center lon
- attributes['zoom'] = int(wrmap_xml.attrib.get('zoom', 10)) # Google Zoom Level
- attributes['width'] = int(wrmap_xml.attrib['width']) if wrmap_xml.attrib.has_key('width') else None # None corresponds to 100%
- attributes['height'] = int(wrmap_xml.attrib.get('height', 450)) # map height in px
- # show_sledruns = (wrmap_xml.tag == 'wrgmap')
+ return geojson
- return attributes, json
+def create_wrmap_coordinates(coords):
+ result = []
+ for coord in coords:
+ result.append('{:.6f} N {:.6f} E'.format(coord[1], coord[0]))
+ return '\n'.join(result)
+
def create_wrmap(geojson):
- """Creates a <wrmap> wikitext from geojson."""
- pass
-
+ """Creates a <wrmap> wikitext from geojson (as python types)."""
+ wrmap_xml = xml.etree.ElementTree.Element('wrmap')
+ wrmap_xml.text = '\n\n'
+ for k, v in geojson['properties'].iteritems():
+ if k in ['lon', 'lat']:
+ wrmap_xml.attrib[k] = '{:.6f}'.format(v)
+ else:
+ wrmap_xml.attrib[k] = str(v)
+
+ assert geojson['type'] == 'FeatureCollection'
+ json_features = geojson['features']
+ last_json_feature = None
+ for json_feature in json_features:
+ feature_xml = xml.etree.ElementTree.SubElement(wrmap_xml, json_feature['properties']['type'])
+ geo = json_feature['geometry']
+ if geo['type'] == 'Point':
+ feature_xml.text = create_wrmap_coordinates([geo['coordinates']])
+ if last_json_feature is not None:
+ last_json_feature.tail = '\n'
+ else:
+ if last_json_feature is not None:
+ last_json_feature.tail = '\n\n'
+ feature_xml.text = '\n' + create_wrmap_coordinates(geo['coordinates']) + '\n'
+ last_json_feature = feature_xml
+ feature_xml.attrib = json_feature['properties']
+ del feature_xml.attrib['type']
+
+ if last_json_feature is not None:
+ last_json_feature.tail = '\n\n'
+ return xml.etree.ElementTree.tostring(wrmap_xml, encoding='utf-8').decode('utf-8')
ToastFreeware / philipp / winterrodeln / wrpylib.git / blobdiff