parseGetText can't parse zope.app catalogs (fr and zh_CN)

[Devin]

When I attempt to use GettextImportFilter to parse the gettext translation catalogs in zope.app for fr and zh_CN, I get the following tracebacks (the first is fr, the second is zh_CN):

Traceback (most recent call last):
  File "./generate-pillar-domain.py", line 68, in main
    filter.importMessages(language, fp)
  File "/usr/lib/python2.5/site-packages/zope/app/i18n/filters.py", line 95, in importMessages
    result = parseGetText(file.readlines())[3]
  File "/usr/lib/python2.5/site-packages/zope/app/i18n/filters.py", line 197, in parseGetText
    raise ParseError(3, pointer + 1)
ParseError: state 3, line 4382

Traceback (most recent call last):
  File "./generate-pillar-domain.py", line 68, in main
    filter.importMessages(language, fp)
  File "/usr/lib/python2.5/site-packages/zope/app/i18n/filters.py", line 95, in importMessages
    result = parseGetText(file.readlines())[3]
  File "/usr/lib/python2.5/site-packages/zope/app/i18n/filters.py", line 197, in parseGetText
    raise ParseError(3, pointer + 1)
ParseError: state 3, line 268

Both errors occur when a blank line is found at the beginning of a 'msgstr' portion in a gettext file.

[Devin (devin.charityfinders.org)]

Just to clarify, when I say "blank line", I mean "quoted empty string".

[Tres Seaver (tseaver)]

Now tracked on Github:

  https://github.com/zopefoundation/zope.i18n/issues/6