[Conversion Output] KePub Output Plugin

[repilo]

New issue since version 3.7.0 (inclusive) onward.

The following snippet results in incorrect rendering on the Kobo Libra 2 in Kepub.Output version 3.7.0 and later:

<span class="nosep">C. B.</span> Horrall.

This is how it appears on the Libra 2 screen:

Text text text text text text text text text
                     C.
text text text text, B. Horrall. Text text

This issue does not occur in version 3.6.11. Additionally, if there is no period (".") inside the <span>, the problem does not appear in the latest versions either.

Below are excerpts from the Kepub conversions using Kepub.Output versions 3.7.0 (incorrect) and 3.6.11 (correct).

Kepub.Output 3.7.0:

<span class="nosep"><span class="koboSpan" id="kobo.109.1">C.</span> <span class="koboSpan" id="kobo.109.2">B.</span></span> <span class="koboSpan" id="kobo.110.1">Horrall.</span>

Kepub.Output 3.6.11:

<span class="nosep"><span class="koboSpan" id="kobo.109.1">C. </span><span class="koboSpan" id="kobo.109.2">B.</span></span><span class="koboSpan" id="kobo.110.1"> Horrall.

By the way, "nosep" is meant to prevent text separation:

.nosep { text-indent:0; display:inline-block; }

[repilo]

I converted to kepub the same test file with versions 3.7.3 and 3.6.11, changed the extension to zip and then compared file by file.

Apart from the dates and version number, the only difference is in the 1.xhtml file.

More specifically, the changes are reduced to the position of the spaces in relation to the /span tags. For example:

In 3.7.3: elit.</span> <span class=“koboSpan” id=“kobo.1.2”>Nulla

In 3.6.11: elit. </span><span class=“koboSpan” id=“kobo.1.2”>Nulla

[repilo]

I think it may be related to the following, taken from the latest version of Calibre, 8.1.1:

KEPUB Output: Include leading whitespace in kobo sentence span tags. This prevents unsightly breaks when highlighting across formatted text on the Kobo

[DNSB]

KEPUB Output: Include leading whitespace in kobo sentence span tags. This prevents unsightly breaks when highlighting across formatted text on the Kobo

That would have nothing to do with the KePub Output plugin. calibre 8+ includes the ability to convert to kepub on the fly in the base KoboTouch plugin and the KoboTouchExtended, KePub Metadata Reader, KePub Metadata Writer, KePub Output and KePub Input plugins are now blacklisted and will not run in calibre 8+.