Reorganise global punctuation rules

spacy/lang/punctuation.py

@@ -1,106 +1,32 @@
 # coding: utf8
 from __future__ import unicode_literals
 
-import regex as re
-re.DEFAULT_VERSION = re.VERSION1
+from .char_classes import LIST_PUNCT, LIST_ELLIPSES, LIST_QUOTES, LIST_CURRENCY
+from .char_classes import ALPHA_LOWER, ALPHA_UPPER, ALPHA, HYPHENS, QUOTES
+from .char_classes import CURRENCY, UNITS
 
 
-_UNITS = """
-km km² km³ m m² m³ dm dm² dm³ cm cm² cm³ mm mm² mm³ ha µm nm yd in ft kg g mg
-µg t lb oz m/s km/h kmh mph hPa Pa mbar mb MB kb KB gb GB tb
-TB T G M K
-"""
+_prefixes = (['§', '%', '=', r'\+'] + LIST_PUNCT + LIST_ELLIPSES + LIST_QUOTES +
+             LIST_CURRENCY)
 
 
-_CURRENCY = r"""
-\$ £ € ¥ ฿ US\$ C\$ A\$
-"""
+_suffixes = (["'s", "'S", "’s", "’S"] + LIST_PUNCT + LIST_ELLIPSES + LIST_QUOTES +
+             [r'(?<=[0-9])\+',
+              r'(?<=°[FfCcKk])\.',
+              r'(?<=[0-9])(?:{})'.format(CURRENCY),
+              r'(?<=[0-9])(?:{})'.format(UNITS),
+              r'(?<=[0-9{}{}(?:{})])\.'.format(ALPHA_LOWER, r'%²\-\)\]\+', QUOTES),
+              r'(?<=[{a}][{a}])\.'.format(a=ALPHA_UPPER)])
 
 
-_QUOTES = r"""
-' '' " ” “ `` ` ‘ ´ ‚ , „ » «
-"""
+_infixes = (LIST_ELLIPSES +
+            [r'(?<=[0-9])[+\-\*^](?=[0-9-])',
+             r'(?<=[{}])\.(?=[{}])'.format(ALPHA_LOWER, ALPHA_UPPER),
+             r'(?<=[{a}]),(?=[{a}])'.format(a=ALPHA),
+             r'(?<=[{a}])[?";:=,.]*(?:{h})(?=[{a}])'.format(a=ALPHA, h=HYPHENS),
+             r'(?<=[{a}"])[:<>=/](?=[{a}])'.format(a=ALPHA)])
 
 
-_PUNCT = r"""
-… , : ; \! \? ¿ ¡ \( \) \[ \] \{ \} < > _ # \* &
-"""
-
-
-_HYPHENS = r"""
-- – — -- ---
-"""
-
-
-LIST_ELLIPSES = [
-    r'\.\.+',
-    "…"
-]
-
-
-LIST_CURRENCY = list(_CURRENCY.strip().split())
-LIST_QUOTES = list(_QUOTES.strip().split())
-LIST_PUNCT = list(_PUNCT.strip().split())
-LIST_HYPHENS = list(_HYPHENS.strip().split())
-
-
-BENGALI = r'[\p{L}&&\p{Bengali}]'
-HEBREW = r'[\p{L}&&\p{Hebrew}]'
-LATIN_LOWER = r'[\p{Ll}&&\p{Latin}]'
-LATIN_UPPER = r'[\p{Lu}&&\p{Latin}]'
-LATIN = r'[[\p{Ll}||\p{Lu}]&&\p{Latin}]'
-
-
-ALPHA_LOWER = '[{}]'.format('||'.join([BENGALI, HEBREW, LATIN_LOWER]))
-ALPHA_UPPER = '[{}]'.format('||'.join([BENGALI, HEBREW, LATIN_UPPER]))
-ALPHA = '[{}]'.format('||'.join([BENGALI, HEBREW, LATIN]))
-
-
-QUOTES = _QUOTES.strip().replace(' ', '|')
-CURRENCY = _CURRENCY.strip().replace(' ', '|')
-UNITS = _UNITS.strip().replace(' ', '|').replace('\n', '|')
-HYPHENS = _HYPHENS.strip().replace(' ', '|')
-
-
-
-# Prefixes
-
-TOKENIZER_PREFIXES = (
-    ['§', '%', '=', r'\+'] +
-    LIST_PUNCT +
-    LIST_ELLIPSES +
-    LIST_QUOTES +
-    LIST_CURRENCY
-)
-
-
-# Suffixes
-
-TOKENIZER_SUFFIXES = (
-    LIST_PUNCT +
-    LIST_ELLIPSES +
-    LIST_QUOTES +
-    [
-        r'(?<=[0-9])\+',
-        r'(?<=°[FfCcKk])\.',
-        r'(?<=[0-9])(?:{c})'.format(c=CURRENCY),
-        r'(?<=[0-9])(?:{u})'.format(u=UNITS),
-        r'(?<=[0-9{al}{p}(?:{q})])\.'.format(al=ALPHA_LOWER, p=r'%²\-\)\]\+', q=QUOTES),
-        r'(?<=[{au}][{au}])\.'.format(au=ALPHA_UPPER),
-        "'s", "'S", "’s", "’S"
-    ]
-)
-
-
-# Infixes
-
-TOKENIZER_INFIXES = (
-    LIST_ELLIPSES +
-    [
-        r'(?<=[0-9])[+\-\*^](?=[0-9-])',
-        r'(?<=[{al}])\.(?=[{au}])'.format(al=ALPHA_LOWER, au=ALPHA_UPPER),
-        r'(?<=[{a}]),(?=[{a}])'.format(a=ALPHA),
-        r'(?<=[{a}])[?";:=,.]*(?:{h})(?=[{a}])'.format(a=ALPHA, h=HYPHENS),
-        r'(?<=[{a}"])[:<>=/](?=[{a}])'.format(a=ALPHA)
-    ]
-)
+TOKENIZER_PREFIXES = _prefixes
+TOKENIZER_SUFFIXES = _suffixes
+TOKENIZER_INFIXES = _infixes