def clean(namespace):
"""
Returns a clean VERSION 1.1 rendition of a namespace.
Data is seperated into four blocks: X, LN, PATTERN, and NS.
Within blocks, original order is preserved.
Standard X keys are handled particularly and intelligently.
X LAST-CHANGED is updated to the present time.
"""
text = []
def show_wo_repeating(key):
"""Write X records, but don't repeat any values."""
if key not in namespace["X"]:
return
vals = namespace["X"][key]
shown = []
for val in vals:
if val not in shown:
shown.append(val)
text.append(u'X %s %s\n' % (key, lnparser.escape(val)))
text.append(u'X VERSION 1.1\n')
text.append(u'X LAST-CHANGED %s\n' % isotime())
show_wo_repeating("PREFERRED-NAME")
show_wo_repeating("AUTHOR")
show_wo_repeating("AUTHOR-FOAF")
if "FINAL" in namespace["X"]:
final = lnparser.escape(namespace["X"]["FINAL"][0])
text.append(u'X FINAL %s\n' % final)
for record_type in ["X", "LN", "PATTERN", "NS"]:
covered = []
for line_num, second, third in namespace[record_type+"-raw"]:
if record_type == "X":
if second in standard_X_keys:
continue
elif second in covered:
continue
covered.append(second)
text.append(u'%s %s %s\n' % (record_type,
lnparser.escape(second),
lnparser.escape(third)))
if len(namespace[record_type+"-raw"]) > 0:
text.append(u'\n')
return ''.join(text)
def show_wo_repeating(key):
"""Write X records, but don't repeat any values."""
if key not in namespace["X"]:
return
vals = namespace["X"][key]
shown = []
for val in vals:
if val not in shown:
shown.append(val)
text.append(u'X %s %s\n' % (key, lnparser.escape(val)))