HTML to ePub: Calibre inserts unwanted tags

NTG · 10-08-2011, 04:50 AM

While converting from HTML to ePub Calibre adds allegedly missing tags that are in fact not missing:

( 1 )
HTML: aa bb cc 
ePub: aa bb cc 

The result is that a paragraph is split mid-sentence into two paragraphs.

( 2 ) Same applies with "<span" instead of "<font"

A browser displays the original ( 1 ) and ( 2 ) flawlessly, because this is simply valid HTML code.

( 3 ) An ugly workaround is to replace by and drop , but that adds huge paragraph spacing.

Is there a solution I missed, or should I report this as a bug right-away?

kovidgoyal · 10-08-2011, 08:42 AM

Having opening tags without closing ones is *not* valid HTML. Every tag must be closed, calibre makes a guess about where it should be closed, that guess is, in this case, different from whatever browser you are using, that is not a bug in calibre. You need to fix your HTML.

NTG · 10-08-2011, 02:25 PM

Sorry, I do have matching pairs (first and last tag is and in each example, and within is valid HTML (you might wish to google html span within paragraph), but your answer is sufficient.

kovidgoyal · 10-08-2011, 03:21 PM

If you have proper closing tags in your document then calibre *will not* insert tags of its own. For example convert eh following html:

Code:

<html>
    <body>
        <p>A <span>span</span> tag.</p>
    </body>
</html>

And you will get

Code:

<?xml version='1.0' encoding='utf-8'?>
<html xmlns="http://www.w3.org/1999/xhtml">
    <head><title>Unknown</title><meta content="http://www.w3.org/1999/xhtml; charset=utf-8" http-equiv="Content-Type"/><link href="stylesheet.css" type="text/css" rel="stylesheet"/><style type="text/css">
                @page { margin-bottom: 5.000000pt; margin-top: 5.000000pt; }</style></head><body class="calibre">
        <p class="calibre1">A <span>span</span> tag.</p>
    </body>
</html>

NTG · 10-09-2011, 04:11 AM

Oh, you talked about the <html> and <body> tags, these I had indeed omitted, and that is of course no valid HTML code :-). I apologize for having caused this mess.

10-08-2011, 04:50 AM	#1
NTG Junior Member Posts: 3 Karma: 10 Join Date: Oct 2011 Device: iBooks	HTML to ePub: Calibre inserts unwanted tags While converting from HTML to ePub Calibre adds allegedly missing tags that are in fact not missing: ( 1 ) HTML: <p> aa <font ... > bb </font> cc </p> ePub: <p> aa </p> <font ... > bb </font> <p> cc </p> The result is that a paragraph is split mid-sentence into two paragraphs. ( 2 ) Same applies with "<span" instead of "<font" A browser displays the original ( 1 ) and ( 2 ) flawlessly, because this is simply valid HTML code. ( 3 ) An ugly workaround is to replace <p> by <br><br> and drop </p>, but that adds huge paragraph spacing. Is there a solution I missed, or should I report this as a bug right-away?

10-08-2011, 08:42 AM	#2
kovidgoyal creator of calibre Posts: 45,347 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Having opening <p> tags without closing ones is not valid HTML. Every <p> tag must be closed, calibre makes a guess about where it should be closed, that guess is, in this case, different from whatever browser you are using, that is not a bug in calibre. You need to fix your HTML.

10-08-2011, 02:25 PM	#3
NTG Junior Member Posts: 3 Karma: 10 Join Date: Oct 2011 Device: iBooks	Sorry, I do have matching pairs (first and last tag is <p> and </p> in each example, and <span> within <p> is valid HTML (you might wish to google html span within paragraph), but your answer is sufficient.

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10-09-2011, 04:11 AM	#5
NTG Junior Member Posts: 3 Karma: 10 Join Date: Oct 2011 Device: iBooks	Oh, you talked about the <html> and <body> tags, these I had indeed omitted, and that is of course no valid HTML code :-). I apologize for having caused this mess.

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