#!/usr/bin/env python3

#  bc_ea_gc.py, 2012 Dec 23, Terry Reedy
# line parsing adapted from code by Pander
# script for http://bugs.python.org/issue16684

from urllib.request import urlopen

url = 'http://www.unicode.org/Public/UNIDATA/PropertyValueAliases.txt'
# In about 10 tries, urlopen twice failed with this:
# urllib.error.URLError: <urlopen error [WinError 10060]
# A connection attempt failed because the connected party did not properly
# respond after a period of time, or established connection failed because
# connected host has failed to respond>
# Next try succeeded, so might want to wrap with retry mechanism.
aliases = urlopen(url)

def parseblock(name):
    # if this were revised to return dict, OrderedDict would keep alpha order
    
    # Find header line of block and skip following blank
    for line in aliases:
        line = str(line, encoding='ascii', errors='ignore')
        if line[0] == '#' and '('+name+')' in line:
            break
    next(aliases)

    # Print code to make code to long name dict for block
    print("dict{} = {{".format(name))
    for line in aliases:
        line = str(line, encoding='ascii', errors='ignore')
        if line != '\n':
            fields = line.split(';')
            abbr = fields[1].strip()
            long = fields[2].split('#')[0].strip()
            print("    '{}': '{}',".format(abbr, long))
        else:
            break
    print("}\n")

# must parse blocks in alphabetical order
parseblock('bc')
parseblock('ea')
parseblock('gc')