""" A collections of regular expression defining rules validating
fields content.

"""
# Valid Collaboration field:
#  - CMS Collaboration
#  - CMS and LHCb Collaborations
#  - ATLAS Collaboration, CMS Collaboration
#  - Heavy Flavour Averaging Group
#  - CTA Consortium
#  - any mixture of the above separated by a comma
#
REG_COLLABORATION = \
    r"^[A-Za-z0-9\-/, ]+([Cc]ollaboration|[Cc]onsortium|[Gg]roup)[s]?$"

# Valid Conference dates
#   - 3 Dec 2012
#   - 10-14 Dec 2012
#   - 28 Jun - 4 Jul 2012
#
reg1 = r"\d{1,2} [A-Z][a-z]{2} \d{4}"
reg2 = r"\d{1,2}-\d{1,2} [A-Z][a-z]{2} \d{4}"
reg3 = r"\d{1,2} [A-Z][a-z]{2} - \d{1,2} [A-Z][a-z]{2} \d{4}"
REG_CONF_DATES = r"%s|%s|%s" % (reg1, reg2, reg3)

# Valid Defence date
#  - 30 Dec 2012
#
REG_DEFENSE = r"\d{2} [A-Z][a-z]{2} \d{4}"

# Valid Submitted field
#  - 2012-12
#  - 2012-12-31
#
REG_SUBMITTED = r"\d{4}-\d{2}(-\d{2})?"

# Valid origin Field
REG_VALID_ORIGIN = \
    r"^http[s]?://[\w\.]+/record/\d+(, http://[\w\.]+/record/\d+)?$"