[Po4a-devel] XML: prevent some attributes from being translated

hi, i am using the XHTML module from po4a, and i would like to specify attributes that i don't want to be translated. i do know about the "untranslated" option, which i already use in some places, but that option only applies to tags. here i would like to ignore modifications done by translators on attributes of an inline tag. example: the text "abc <a href=\"file.html\" target=\"_blank\" title=\"link-name\"> def". as of now, the text appears as is in the .pot file, and if a translator mistakenly translates \"file.html\" into \"translated_name.html\", then the link will point to a non-existing page. when a translator translates that text to "abc_translated <a href=\"file_translated.html\" target=\"wrong_target\" title=\"link-name_translated\"> def_translated", i would like modifications to the "href" and "target" attributes to be ignored. or as an alternative solution, simply exit po4a with an error stating that the translation file is incorrect. i assume there is no current way of doing it; i could try, but i don't know Perl much and even less po4a. i have noticed the recent work on the XHTML module (thanks for <br> and <u>, much appreciated!), so i was hoping a po4a maintainer could give this a try. otherwise, i would like pointers on where to start... thanks, poy