It looks like the problem occurs only with the use of raw HTML, directly
(as in the minimal example here), or indirectly through a macro (as I first
encountered it):
\input texinfo
@node Top
@top
@node Cap 1
@chapter @inlineraw{html,<span class="test">}One@inlineraw{html,</span>}
@bye
Benjamin Kalish
On Sun, Sep 22, 2024 at 4:47 PM Gavin Smith <gavinsmith0...@gmail.com>
wrote:
> On Sun, Sep 22, 2024 at 02:20:36PM -0400, Benjamin Kalish wrote:
> > EPUB output contains unescaped content in a number of HTML attributes.
> I'm
> > seeing this with:
> >
> > - The content attribute for <meta> with name="description"
> > - The content attribute for <meta> name="keywords"
> > - The title attribute of the <link> elements with rel="next" and
> rel="prev"
> >
> > HTML output also has these same tags and attributes, but the content
> seems
> > fine in my case. This may not actually be due to better escaping, as it
> > looks like entirely different content is being used for the attribute
> > values when generating HTML, and the content is, in this case at least,
> > safe without escaping.
> >
> > Changing the values to be the same as those used when generating HTML
> would
> > solve the problem in my case, but it is probably best to make sure that
> > attribute values are always escaped.
> >
> > What should be escaped? Quotation marks must be. Ambiguous ampersands
> must
> > be. But it is probably prudent to escape all ampersands and all
> > occurrences of < or >.
> >
> > I'm sorry I can't suggest a fix in the code—I'm not familiar with the
> > Texinfo codebase and it's been decades since I've coded in Perl or C.
> >
> > I'm using texi2any 7.1.1
>
> I tried testing this on the master development branch and it looked
> ok:
>
> $ cat test.texi
> \input texinfo
>
> @node Top
> @top
>
> @node Cap 1
> @chapter One "<>
>
> @bye
>
> After running "texi2any --epub3 test.texi" and extracting the
> resulting "test.epub" file, the output file in the ZIP archive had, in
> "test/EPUB/xhtml/Cap-1.xhtml", the " < and > escaped (see output below).
> Can you please explain how to reproduce the problem?
>
>
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE html>
> <html xmlns="http://www.w3.org/1999/xhtml";>
> <!-- Created by GNU Texinfo 7.1.1, https://www.gnu.org/software/texinfo/
> -->
> <head>
> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
> <title>1 One "<> (Untitled Document)</title>
>
> <meta name="description" content="1 One "<> (Untitled
> Document)"/>
> <meta name="keywords" content="1 One "<> (Untitled Document)"/>
> <meta name="resource-type" content="document"/>
> <meta name="distribution" content="global"/>
> <meta name="Generator" content="texi2any"/>
> <meta name="viewport" content="width=device-width,initial-scale=1"/>
>
> <link href="test.xhtml" rel="start" title=""/>
> <link href="#Cap-1" rel="index" title="1 One "<>"/>
> <link href="test.xhtml" rel="up" title=""/>
> <link href="test.xhtml" rel="prev" title=""/>
>
>
> </head>
>
> <body lang="en">
> <div class="chapter-level-extent" id="Cap-1">
>
> <h2 class="chapter" id="One-_0022_003c_003e">1 One "<></h2>
>
>
>
> </div>
>
>
>
> </body>
> </html>
>
