Fixed regular expression search for dollar codes

Author: Renne Rocha

price_parser/parser.py

@@ -109,12 +109,12 @@ def or_regex(symbols: List[str]) -> Pattern:
 DOLLAR_CODES = [k for k in CURRENCY_CODES if k.endswith('D')]
 _DOLLAR_REGEX = re.compile(
     r'''
-        \b
+        (\b
         (?:{})  # currency code like NZD
         (?=
             \$?  # dollar sign to ignore if attached to the currency code
             (?:[\W\d]|$)  # not a letter
-        )
+        ))
     '''.format('|'.join(re.escape(k) for k in DOLLAR_CODES)),
     re.VERBOSE,
 )
@@ -142,7 +142,7 @@ def or_regex(symbols: List[str]) -> Pattern:
 OTHER_CURRENCY_SYMBOLS = sorted(OTHER_CURRENCY_SYMBOLS_SET,
                                 key=len, reverse=True)
 
-_search_dollar_code = re.compile("|".join(DOLLAR_REGEXES), re.VERBOSE).search
+_search_dollar_code = _DOLLAR_REGEX.search
 _search_other_particular_regexes = re.compile("|".join(OTHER_PARTICULAR_REGEXES), re.VERBOSE).search
 _search_safe_currency = or_regex(SAFE_CURRENCY_SYMBOLS).search
 _search_unsafe_currency = or_regex(OTHER_CURRENCY_SYMBOLS).search