underline and double underline about doconce

[hplgit]

Underline is seldom supported in markup languages since it is no longer much used in typography (italic is preferred). You can, however, extend the syntax by a writing mako function that returns underline in case of latex and html, using emphasize for all other formats:

<%
def underline(text):
    if FORMAT in ('latex', 'pdflatex'):
        return '\\underline{%s}' % text
    elif FORMAT == 'html':
        return '<u>%s</u>' % text
    else:
        # Use emphasize font
        return '*%s*' % text
%>

In the doconce text:

Here is a sentence with an old-fashioned ${underline('underlined')} word.