Move common libs to libs/common

libs/common/guessit/rules/properties/crc.py

@@ -0,0 +1,90 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+crc and uuid properties
+"""
+from rebulk.remodule import re
+
+from rebulk import Rebulk
+from ..common.pattern import is_disabled
+from ..common.validators import seps_surround
+
+
+def crc(config):  # pylint:disable=unused-argument
+    """
+    Builder for rebulk object.
+
+    :param config: rule configuration
+    :type config: dict
+    :return: Created Rebulk object
+    :rtype: Rebulk
+    """
+    rebulk = Rebulk(disabled=lambda context: is_disabled(context, 'crc32'))
+    rebulk = rebulk.regex_defaults(flags=re.IGNORECASE)
+    rebulk.defaults(validator=seps_surround)
+
+    rebulk.regex('(?:[a-fA-F]|[0-9]){8}', name='crc32',
+                 conflict_solver=lambda match, other: other
+                 if other.name in ['episode', 'season']
+                 else '__default__')
+
+    rebulk.functional(guess_idnumber, name='uuid',
+                      conflict_solver=lambda match, other: match
+                      if other.name in ['episode', 'season']
+                      else '__default__')
+    return rebulk
+
+
+_DIGIT = 0
+_LETTER = 1
+_OTHER = 2
+
+_idnum = re.compile(r'(?P<uuid>[a-zA-Z0-9-]{20,})')  # 1.0, (0, 0))
+
+
+def guess_idnumber(string):
+    """
+    Guess id number function
+    :param string:
+    :type string:
+    :return:
+    :rtype:
+    """
+    # pylint:disable=invalid-name
+    ret = []
+
+    matches = list(_idnum.finditer(string))
+    for match in matches:
+        result = match.groupdict()
+        switch_count = 0
+        switch_letter_count = 0
+        letter_count = 0
+        last_letter = None
+
+        last = _LETTER
+        for c in result['uuid']:
+            if c in '0123456789':
+                ci = _DIGIT
+            elif c in 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ':
+                ci = _LETTER
+                if c != last_letter:
+                    switch_letter_count += 1
+                last_letter = c
+                letter_count += 1
+            else:
+                ci = _OTHER
+
+            if ci != last:
+                switch_count += 1
+
+            last = ci
+
+        # only return the result as probable if we alternate often between
+        # char type (more likely for hash values than for common words)
+        switch_ratio = float(switch_count) / len(result['uuid'])
+        letters_ratio = (float(switch_letter_count) / letter_count) if letter_count > 0 else 1
+
+        if switch_ratio > 0.4 and letters_ratio > 0.4:
+            ret.append(match.span())
+
+    return ret