X-Git-Url: https://git.toastfreeware.priv.at/philipp/winterrodeln/wrpylib.git/blobdiff_plain/cc3137e1ea73e04eb48afba1f4f100c80131ebbc..dc5c42f67c79be7d672786b5c5727677dbec254f:/wrpylib/wrmwmarkup.py
diff --git a/wrpylib/wrmwmarkup.py b/wrpylib/wrmwmarkup.py
index 62bf20a..c968b20 100644
--- a/wrpylib/wrmwmarkup.py
+++ b/wrpylib/wrmwmarkup.py
@@ -1,10 +1,11 @@
-#!/usr/bin/python2.6
+#!/usr/bin/python2.7
# -*- coding: iso-8859-15 -*-
# $Id$
# $HeadURL$
"""This module contains winterrodeln specific functions that are prcocessing the MediaWiki markup.
"""
import re
+import xml.etree.ElementTree
import formencode
import wrpylib.wrvalidators
import wrpylib.mwmarkup
@@ -314,3 +315,171 @@ def find_all_templates(wikitext, find_func):
result = (start, end) + result[2:]
return results
+
+def parse_googlemap(wikitext):
+ """Parses the (unicode) u'content' 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 = '''
+
+ (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
+
+ '''
+ :returns: (attributes, GeoJSON as 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
+ json_features.append({
+ 'type': 'feature',
+ 'geometry': {'type': 'Point', 'coordinates': [lon, lat]},
+ 'properties': properties})
+
+ # path
+ for path in paths:
+ style, entries = path
+ properties = {'type': 'line'}
+ json_features.append({
+ '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
+
+
+def parse_wrmap_coordinates(coords):
+ '''gets a string coordinates and returns an array of lon/lat coordinate pairs, e.g.
+ 47.12 N 11.87 E
+ 47.13 N 11.70 E
+ ->
+ [[11.87, 47.12], [11.70, 47.13]]'''
+ result = []
+ pos = 0
+ for match in re.finditer(r'\s*(\d+\.?\d*)\s*N?\s+(\d+\.?\d*)\s*E?\s*', coords):
+ if match.start() != pos:
+ break
+ result.append([float(match.groups()[1]), float(match.groups()[0])])
+ pos = match.end()
+ else:
+ if pos == len(coords):
+ return result
+ raise RuntimeError('Wrong coordinate format: {}'.format(coords))
+
+
+def parse_wrmap(wikitext):
+ """Parses the (unicode) u'content' 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.
+
+ :param wikitext: wikitext containing the template. Example:
+
+ wikitext = u'''
+
+ 47.240689 11.190454
+ 47.245789 11.238971
+ 47.245711 11.238283
+
+ 47.238587 11.203360
+ 47.244951 11.230868
+ 47.245470 11.237853
+
+
+ '''
+ :returns: (attributes, GeoJSON as Python datatypes)
+ """
+ # 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
+
+ # 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)
+ if (not is_point and not is_line):
+ raise RuntimeError('Unknown element <{}>.'.format(feature.tag))
+
+ # point
+ if is_point:
+ properties = {'type': point_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))
+ 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))
+ json_features.append({
+ 'type': 'feature',
+ 'geometry': {'type': 'Point', 'coordinates': coordinates[0]},
+ 'properties': properties})
+
+ # line
+ if is_line:
+ properties = {'type': line_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))
+ if feature.attrib.has_key('farbe'):
+ # TODO: check value
+ 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.')
+ json_features.append({
+ 'type': 'feature',
+ 'geometry': {'type': 'LineString', 'coordinates': parse_wrmap_coordinates(feature.text)},
+ 'properties': properties})
+
+ json = {
+ 'type': 'FeatureCollection',
+ 'features': json_features}
+
+ # 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 attributes, json
+
+
+def create_wrmap(geojson):
+ """Creates a wikitext from geojson."""
+ pass
+
+