calibre

The E-book viewer displays a CSS inserted em dash as an encoding error

Bug #2021554 reported by bbballs on 2023-05-30

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	calibre	Fix Released	Undecided	Unassigned

Bug Description

Calibre 6.18.1
Linux POP!_OS 22.04

The E-book viewer displays a CSS inserted em dash as an encoding error, but the E-book editor preview displays the em dash correctly.

An example of the HTML:

The Chapter on the Entire Spectrum of Ethics 
 Sīlakkhandhavagga

The relevant css:

    .blurb-item.translated-title::after
    {
        content: ' — ';
    }

The E-book viewer output:

The Chapter on the Entire Spectrum of Ethics â€” Sīlakkhandhavagga

The E-book editor preview output:

The Chapter on the Entire Spectrum of Ethics — Sīlakkhandhavagga

Revision history for this message

bbballs (bbballs) wrote on 2023-05-30:

screenshot of what is displayed Edit (535.8 KiB, image/jpeg)

Revision history for this message

Kovid Goyal (kovid) wrote on 2023-05-30:

Works for me with

test.html
```
<!DOCTYPE html>
<html>
 <head>
 <title>test</title>
 <meta charset="utf-8" />
 </head>
 <body>
<style> .blurb-item.translated-title::after
 {
 content: ' — ';
} </style>
 
 The Chapter on the Entire Spectrum of Ethics 
 Sīlakkhandhavagga
 
 </body>
</html>
```

ebook-viewer test.html

On Linux, current calibre.

Changed in calibre:
status:	New → Invalid

Revision history for this message

bbballs (bbballs) wrote on 2023-05-30:

Hmmm, the test HTML worked for me as well. The em dash in book itself doesn't display correctly in the E-book viewer though.

The bit of HTML and CSS I provided above was what I assumed the the origin of problem was, but obvious it isn't. I tested more of the surrounding HTML and CSS of the example text in isolation, and it worked as well. This basically exhausts my capacity to try to identify what is happening.

The organization the produces the EPUB provides the document as an HTML file as well. The HTML version displays the em dash correctly in the E-Book viewer, so something is happening differently with the EPUB.

Here is link to the EPUB, in case you are interested in investigating further. The relevant file is the blurbs.xhtml, and the relevant chapter is "Summary of Contents".

https://github.com/suttacentral/editions/raw/main/en/sujato/dn/epub/Long-Discourses-sujato-2023-05-29.epub

Here is the link to the HTML file, in case it is relevant.

https://raw.githubusercontent.com/suttacentral/editions/main/en/sujato/dn/html/Long-Discourses-sujato-2023-05-29.html