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regex_search.py
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regex_search.py
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#!/usr/bin/env python
# encoding: utf-8
"""Search over OSM opening_hours like values and see if they can be parsed."""
# modules {{{
import logging
import sys
import json
import re
import codecs
from termcolor import colored
import urllib
import readline
import pyopening_hours
# }}}
class OpeningHoursRegexSearch: # {{{
def __init__(self):
self._page_width = 20
self.setOSMTagKey('opening_hours') # default
def setOSMTagKey(self, key):
"""Set the OSM key. This is important for the URL generation.
:param key: OSM key e.g. "opening_hours"
:returns: None
"""
self.overpass_turbo_url = 'https://overpass-turbo.eu/' \
+ '?template=key-value&key=%s&value=' % key
self.taginfo_url = 'https://taginfo.openstreetmap.org/tags/%s=' % key
self.josm_remote_url = 'https://localhost:8111/import?url=%s' % (
self._url_encode(u'https://overpass-api.de/api/xapi_meta?*[%s=' % key)
)
# helper functions for the user of the package {{{
def load_json_file(self, json_file): # {{{
"""Load JSON file and return it as python dictionary.
:param json_file: Path to Taginfo JSON file.
:returns: Python object of JSON data.
"""
try:
json_data = codecs.open(json_file, 'r', 'UTF-8')
except IOError as detail:
raise SystemExit('File %s is not readable: %s' %
(json_file, detail[1]))
decoded_json = json.load(json_data)
json_data.close()
return decoded_json
# }}}
# }}}
# helper functions {{{
def _url_encode(self, url): # {{{
"""Encode URL to make it save for usage in HTTP get requests.
:param url: URL to encode.
:returns: Encoded URL.
"""
return urllib.quote(url.encode('utf-8'), safe='~()*!.\'')
# }}}
# }}}
def run_interpreter(self, taginfo_tag_export, do_not_load_values_again): # {{{
"""Start the interactive shell for the user."""
page_width = self._page_width
while True:
# get user regular expression {{{
user_regex = raw_input('regex search> ')
if re.match(r'\s*\Z', user_regex):
logging.info('Send SIGINT signal if you want to exit.')
continue
try:
user_reg = re.compile('(?P<pre>.*?)(?P<match>'+user_regex+')(?P<post>.*)',
re.IGNORECASE)
except re.error, err:
logging.error('Your regular expression did not compile: %s', err)
continue
# }}}
matched = []
for taginfo_hash in taginfo_tag_export['data']:
res = user_reg.match(taginfo_hash['value'])
if res:
matched.append([taginfo_hash, res])
if len(matched) == 0:
logging.info('Did not match any value with regular expression: %s', user_regex)
else:
matched = sorted(matched, key=lambda k: k[0]['count'], reverse=True) # show the values which appear often first
do_parse_all_values_before = True
if (len(matched) > 10000
and not re.match(r'^y', raw_input('Try to parse each value (probably takes a second)? '), re.I)):
do_parse_all_values_before = False
total_in_use = 0
passed_diff_values = 0
total_passed = 0
for taginfo_hash, res in matched:
total_in_use += taginfo_hash['count']
if do_parse_all_values_before:
try:
oh_result = pyopening_hours.OpeningHours(taginfo_hash['value'])
except ImportError as e:
raise e
except pyopening_hours.ParseException:
continue
passed_diff_values += 1
total_passed += taginfo_hash['count']
if do_parse_all_values_before:
passed_diff_values = ' (%d passed)' % passed_diff_values
total_passed = ' (%d passed)' % total_passed
logging.info('Matched %d%s different values%s%s' % (
len(matched), passed_diff_values,
('' if len(matched) == 1 else 's'),
(', total in use: %d%s' % (total_in_use, total_passed) if len(matched) != 1 else '')
)
)
print_values = 'y'
# if len(matched) > page_width:
## you may want to use the "taginfo" flag
print_values = raw_input('Print values'
' (passable answers: "yes" for all values, "passed"'
' or "failed", additionally "overpass", "taginfo", "err", "josm", "no_repeat")? ')
if re.match(r'(y|p|f)', print_values, re.I):
printed_values = 1
print_all = re.match(r'\s*y', print_values, re.I)
print_passed = re.match(r'\s*p', print_values, re.I)
show_error_m = re.search(r'\berr', print_values, re.I)
josm_load = re.search(r'\bjosm\b', print_values, re.I)
josm_load_not_repeat = re.search(r'\bno_repeat\b', print_values, re.I)
if show_error_m:
page_width /= 2
for taginfo_hash, res in matched:
if printed_values % page_width == 0:
printed_values += 1
# If nothing is printed in this iteration, the
# question would pop up again. The variable
# "printed_values" does already not match the real
# printed lines so who cares …
if not re.match(r'^(y.*|)$', raw_input('Continue? '), re.I):
break
oh_ok = True
try:
oh_result = pyopening_hours.OpeningHours(taginfo_hash['value'])
except ImportError as e:
raise e
except pyopening_hours.ParseException as e:
oh_ok = False
if oh_ok:
oh_loc_needed = ', loc needed' if oh_result._neededNominatiomJson() else ''
oh_warnings = ', warnings' if oh_result.getWarnings() else ''
passed_failed = {
'open' : colored('Passed', 'green'),
'unknown' : colored('Passed', 'magenta'),
'close' : colored('Passed', 'blue'),
}[oh_result.getStateString()]
else:
passed_failed = colored('Failed', 'red')
oh_loc_needed = ''
oh_warnings = ''
if print_all or (print_passed != None) == oh_ok:
overpass_url = ''
tag_url = ''
if re.search(r'\bover(pass)?\b', print_values, re.I):
overpass_url = 'overpass: %s%s' % (
self.overpass_turbo_url,
self._url_encode(taginfo_hash['value'])
)
if re.search(r'tag', print_values, re.I):
tag_url = 'taginfo: %s%s' % (
self.taginfo_url,
self._url_encode(taginfo_hash['value'])
)
logging.info('Matched (count: %d, status: %s%s%s): %s%s%s' % (
taginfo_hash['count'],
passed_failed, oh_loc_needed, oh_warnings,
res.group('pre'),
colored(res.group('match'), 'blue'),
res.group('post')
)
)
if show_error_m and not oh_ok:
for warning in oh_result.getWarnings():
logging.info(' * %s' % warning)
if overpass_url and tag_url:
logging.info(', '.join([overpass_url, tag_url]))
elif overpass_url:
logging.info(overpass_url)
elif tag_url:
logging.info(tag_url)
if josm_load:
if (josm_load_not_repeat and taginfo_hash['value'] not in do_not_load_values_again) or josm_load_not_repeat != True:
if josm_load_not_repeat:
do_not_load_values_again.append(taginfo_hash['value'])
josm_remote_url_for_value = '%s%s' % (self.josm_remote_url, self._url_encode('%s%s' % (taginfo_hash['value'], u']')))
try:
josm_return = urllib.urlopen(josm_remote_url_for_value)
if josm_return.getcode() != 200:
logging.error('JOSM Remote HTTP request resulted in status code %d', josm_return.getcode())
except:
logging.error('Connection to JOSM could not be established.'
+ ' Please start JOSM and enable remote control.')
printed_values += 1
# }}}
# }}}
# main {{{
def main():
"""Run as command line program."""
# Only load these modules if is called as script {{{
import signal
# }}}
# logging {{{
logging.basicConfig(
format='%(levelname)s: %(message)s',
level=logging.DEBUG,
# level=logging.INFO,
)
# }}}
# signal handler {{{
def signal_handler(signal, frame):
"""Called on SIGINT to exit gracefully."""
print ''
logging.info(u'Bye')
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
# }}}
# interpreter input history and predefined regular expressions {{{
HISTFILE = '/tmp/opening_hours.regex.history'
try:
readline.read_history_file(HISTFILE)
except IOError:
pass
import atexit
atexit.register(readline.write_history_file, HISTFILE)
class Completer:
"""Completer for tab completion."""
def __init__(self, words):
self.words = words
self.prefix = None
def complete(self, prefix, index):
if prefix != self.prefix:
# we have a new prefix!
# find all words that start with this prefix
self.matching_words = [
w for w in self.words if w.startswith(prefix)
]
self.prefix = prefix
try:
return self.matching_words[index]
except IndexError:
return None
# a set of more or less interesting words {{{
STD_REGEX = ('PH', 'SH', '.',
r'\((?:dusk|sun|dawn)[^)]*(?:-|\+)[^)]*\)',
r'(?:dusk|sun|dawn).*hours',
r'(?:dusk|sun|dawn|\d{1,2}[.:]\d{2})\+',
r'\d\s*-\s*(mo|tu|we|th|fr|sa|su)\\b',
r'-\s*\d{1,2}[:.]\d{2}\s*?\+',
r'[^0-9a-z ?.]\s*?-\s*?\d{1,2}:\d{2}\s*?[^+]',
# Start time not specified (not in the syntax specification).
# Opposite to open end.
# https://wiki.openstreetmap.org/wiki/Proposed_features/opening_hours_open_until#Notes
#
r'\d{1,2}:\d{2}\s*?-\s*?\d{1,2}:\d{2}\s*?\+', # 12:00-14:00+
# https://wiki.openstreetmap.org/wiki/Proposed_features/opening_hours_open_end_fixed_time_extension#Summary
#
r'^(?:(?:[0-1][0-9]|2[0-4])(?:[1-5][0-9]|0[0-9])\s*-?\s*){2}$', # match 1700-2300
)
# }}}
readline.parse_and_bind("tab: complete")
readline.set_completer(Completer(STD_REGEX).complete)
# }}}
regex_search = OpeningHoursRegexSearch()
# open Taginfo JSON file {{{
json_file = 'export.opening_hours.json'
if len(sys.argv) > 1:
json_file = sys.argv[1]
taginfo_tag_export = regex_search.load_json_file(json_file)
logging.info(u'Loaded %s.' % json_file)
# }}}
key = ''
try:
key = re.match(r'\Aexport\.(.*)\.json', json_file).group(1)
except:
sys.stderr.write('Did not match the key, URL will not work')
regex_search.setOSMTagKey(key)
with open('testing', 'r') as f:
do_not_load_values_again = [line.rstrip('\n').decode('utf-8') for line in f]
regex_search.run_interpreter(taginfo_tag_export, do_not_load_values_again)
with open('testing', 'w') as f:
for s in do_not_load_values_again:
f.write(s.decode('utf-8') + '\n')
if __name__ == '__main__':
main()
# }}}
# vim: set ts=8 sw=4 tw=0 foldlevel=0 foldmethod=marker et :