10.3. uniQuotes(): Convert double-quotes to
Unicode paired form
xnomo3.py
# - - - u n i Q u o t e s
def uniQuotes(u):
'''Convert Unicode double-quotes to the paired versions.
[ u is a unicode string ->
return u with even-numbered double-quote characters
replaced by left double-quotes and odd-numbered ones
by right double-quotes ]
'''
#-- 1 --
quotes = False
newList = []
#-- 2 --
for char in u:
if char == u'"':
if quotes: newList.append(UNI_RQ)
else: newList.append(UNI_LQ)
quotes = not quotes
else:
newList.append(char)
#-- 3 --
if quotes:
raise ValueError("Unbalanced quotes: %r" % u)
else:
return u''.join(newList)
