Should not latex decode some fields

When formatting a bibliography like this

style = pybtex.stylce.formatting.plain.Style
style.format_entries(bib_data.entries.values())

it will fail on “url” fields where the URL contains a percent sign. The current version of latexcodec (1.0.3) raises an exception, the upcoming version (1.0.4) will cut off everything behind the percent sign because it is treated as a comment.

Latex decoding should not be applied to some fields like URL (not sure what other fields). My workaround at the moment is:

from pybtex.style.template import FieldIsMissing, href, join, node, words

@node
def raw_field(children, data, name, apply_func=None):
    """Return the raw contens of the bibliography entry field.

    This function does not decode special LaTeX characters."""
    assert not children
    try:
        field = data.fields[name]
    except KeyError:
        raise FieldIsMissing(name, data)
    else:
        if apply_func:
            field = applay_func(field)
        return field


class NonURLDecodingPlainStyle(pybtex.style.formatting.plain.Style):
    """Plain text pybtex style which does not attempt to latex decode URLs."""

    def format_url(self, e):
        return words [
            'URL:',
            href [
                raw_field('url'),
                join(' ') [
                    raw_field('url')
                ]
            ]
        ]

style = NonURLDecodingPlainStyle()

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