Unihistext / src /

__author__ = "Piotr Findeisen <>"

import os, sys, unicodedata, codecs, signal
from functools import wraps
import version

def identity(x): return x

def print_version():
    print os.path.basename(sys.argv[0]) + " version " + version.version
    print "Supported Unicode version: " + unicodedata.unidata_version

def unicode_file(file, encoding = 'utf-8', errors = 'strict'):
    # copied from
    info = codecs.lookup(encoding)
    srw = codecs.StreamReaderWriter(file, info.streamreader, info.streamwriter, errors)
    # Add attributes to simplify introspection
    srw.encoding = encoding
    return srw

def unicode_xreadlines(input, *args, **kwargs):
    return iter(unicode_file(input, *args, **kwargs))

def open_input(options, **kwargs):
    input = sys.stdin if options.input == "-" else open(options.input, 'rb')
    encoding = kwargs.get('encoding', getattr(options, 'encoding', None))
    if encoding is not None:
        input = unicode_file(input, encoding=encoding, **kwargs)
    return input

def die(fmt, *args):
    print >> sys.stderr, "%s:" % os.path.basename(sys.argv[0]), fmt % args

def _safe_op(op, collection, fallback):
        return op(collection)
    except ValueError:
        return fallback

def safe_max(collection, fallback = 0):
    return _safe_op(max, collection, fallback)

def safe_min(collection, fallback = int(2 ** 31 - 1)):
    return _safe_op(min, collection, fallback)

def definition_file_xreadlines(path):
    for line in open(path, 'rb').xreadlines():
            line = line.strip()
            if not line or line[0] == '#': continue
            yield line
        except Exception:
            import traceback; traceback.print_exc()

def make_main(f):
    def wrapper(*args, **kwargs):
            return f(*args, **kwargs)
        except KeyboardInterrupt:
            sys.exit(128 + signal.SIGINT)
    return wrapper
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