 
           if data.metadata.source? && data.metadata.source.match(GB_REGEX)
             match = data.metadata.source.match(GB_REGEX)
-            gb_id = match[4]
+            gb_id = match[5]
             process_gb_id(gb_id, score)
           identifier_type_mapping = {
             'lccn': 'lccn',

process_gb = (identifier_string) ->
  console.log 'process_gb'
  match = identifier_string.match(GB_REGEX)
  gb_id = match[4]
  process_gb_id(gb_id, 100)

gb_query = (gb_id, level = 0) ->

GOOGLE_BOOKS_URI = 'https://www.googleapis.com/books/v1/volumes'

GOOGLE_BOOKS_API_KEY = 'AIzaSyDkGJOl5EEBahhn1J2kS70FmiRR2uwpFIY'
GOOGLE_TLDS = '(com|ad|ae|com\\.af|com\\.ag|com\\.ai|al|am|co\\.ao|com\\.ar|as|at|com\\.au|az|ba|com\\.bd|be|bf|bg|com\\.bh|bi|bj|com\\.bn|com\\.bo|com\\.br|bs|bt|co\\.bw|by|com\\.bz|ca|cd|cf|cg|ch|ci|co\\.ck|cl|cm|cn|com\\.co|co\\.cr|com\\.cu|cv|com\\.cy|cz|de|dj|dk|dm|com\\.do|dz|com\\.ec|ee|com\\.eg|es|com\\.et|fi|com\\.fj|fm|fr|ga|ge|gg|com\\.gh|com\\.gi|gl|gm|gr|com\\.gt|gy|com\\.hk|hn|hr|ht|hu|co\\.id|ie|co\\.il|im|co\\.in|iq|is|it|je|com\\.jm|jo|co\\.jp|co\\.ke|com\\.kh|ki|kg|co\\.kr|com\\.kw|kz|la|com\\.lb|li|lk|co\\.ls|lt|lu|lv|com\\.ly|co\\.ma|md|me|mg|mk|ml|com\\.mm|mn|ms|com\\.mt|mu|mv|mw|com\\.mx|com\\.my|co\\.mz|com\\.na|com\\.ng|com\\.ni|ne|nl|no|com\\.np|nr|nu|co\\.nz|com\\.om|com\\.pa|com\\.pe|com\\.pg|com\\.ph|com\\.pk|pl|pn|com\\.pr|ps|pt|com\\.py|com\\.qa|ro|ru|rw|com\\.sa|com\\.sb|sc|se|com\\.sg|sh|si|sk|com\\.sl|sn|so|sm|sr|st|com\\.sv|td|tg|co\\.th|com\\.tj|tl|tm|tn|to|com\\.tr|tt|com\\.tw|co\\.tz|com\\.ua|co\\.ug|co\\.uk|com\\.uy|co\\.uz|com\\.vc|co\\.ve|vg|co\\.vi|com\\.vn|vu|ws|rs|co\\.za|co\\.zm|co\\.zw|cat)'

HT_REGEX = /^https?:\/\/babel\.hathitrust\.org\/cgi\/pt\?id=(.+)/
IA_REGEX = /^https?:\/\/(www\.)?archive\.org\/(details|stream)\/(.+)[#/]?/
# GB_REGEX = /^https?:\/\/(books|www|play)\.google\.com\/(store\/)?books(\?id=|\/details\?id=|\/edition\/.+\/)([^?&]+)([?&].*)?/
GB_REGEX = new RegExp('^https?:\\/\\/(books|www|play)\\.google\\.' + GOOGLE_TLDS + '\\/(store\\/)?books(\\?id=|\\/details\\?id=|\\/edition\\/.+\\/)([^?&]+)([?&].*)?')
HDL_REGEX = /^https?:\/\/hdl\.handle\.net\/2027\/(.+)\/?/
HT_CATALOG_REGEX = /^https?:\/\/catalog\.hathitrust\.org\/Record\/(\d{9})/

