add script for taginfo extract

cache/binary/tags.py

@@ -0,0 +1,39 @@
+# query taginfo for most used
+
+import json
+import urllib2
+
+URL = "http://taginfo.openstreetmap.org/api/4/tags/popular?sortname=count_%s&sortorder=desc&page=1&rp=200&qtype=tag"
+
+added = set()
+
+def codepoints_for(elem_type, min_count=100000):
+    resp = urllib2.urlopen(URL % elem_type)
+    data = json.load(resp)
+    by_count = []
+    for item in data['data']:
+        if item['in_wiki'] != 1:
+            continue
+        if item['key'] not in ('source', 'source_ref', 'attribution', 'import', 'import_uuid'):
+            by_count.append((item['count_%s' % elem_type], item['key'], item['value'].encode('utf8'), item['count_%s_fraction' % elem_type]))
+
+    by_count.sort(reverse=True)
+    fraction = 0.0
+    for item in by_count:
+        fraction += item[-1]
+        if item[0] < min_count:
+            break
+        key_val = (item[1], item[2])
+        if key_val in added:
+            print '//',
+        added.add(key_val)
+        print 'addTagCodePoint("%s", "%s")' % key_val
+
+
+if __name__ == '__main__':
+    print '// most used tags for ways'
+    codepoints_for('ways')
+    print '// most used tags for nodes'
+    codepoints_for('nodes')
+    print '// most used tags for rels'
+    codepoints_for('relations')