04.10.13 16:56, Steven D'Aprano написав(ла):
I have some custom Unicode error handlers, and I'm looking for advice on
the right API for dealing with them.
I have a module containing custom Unicode error handlers. For example:
# Python 3
import unicodedata
def namereplace_errors(exc):
c = exc.object[exc.start]
try:
name = unicodedata.name(c)
except (KeyError, ValueError):
n = ord(c)
if n <= 0xFFFF:
replace = "\\u%04x"
else:
assert n <= 0x10FFFF
replace = "\\U%08x"
replace = replace % n
else:
replace = "\\N{%s}" % name
return replace, exc.start + 1
I'm planning to built this error handler in 3.4 (see
http://comments.gmane.org/gmane.comp.python.ideas/21296).
Actually Python implementation should looks like:
def namereplace_errors(exc):
if not isinstance(exc, UnicodeEncodeError):
raise exc
replace = []
for c in exc.object[exc.start:exc.end]:
try:
replace.append(r'\N{%s}' % unicodedata.name(c))
except KeyError:
n = ord(c)
if n < 0x100:
replace.append(r'\x%02x' % n)
elif n < 0x10000:
replace.append(r'\u%04x' % n)
else:
replace.append(r'\U%08x' % n)
return ''.join(replace), exc.end
Now, my question:
Should the module holding the error handlers automatically register them?
This question interesting me too.
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