MobileRead Forums - View Single Post - table of contents code for converted oreilly chm

jackie_w · 08-02-2011, 03:57 PM

The <title>...</title> tags are not used by Calibre when defining chapters/TOC levels.

There are (at least) 2 ways to get the correct TOC nesting.

The first is to find out exactly how the source document has defined each nest level in the XHTML files. It could be as simple as <h1> for level 1, <h2> for level 2 and <h3> for level 3... however you may not get that lucky! You can try opening the CHM in the Calibre Viewer then using the right-click Inspect feature. Once you have figured out exactly how the chapter headings have been defined you can use the info to construct the correct entries for the box Convert - StructureDetection - Detect chapters at and also for the 3 TOC level boxes on the Convert - TOC page. This method requires you to have a working knowledge of html.
The second approach requires less technical ability. If you have done your CHM to EPUB conversion and you have a correct, but flat, TOC you could try this EpubFixer utility to massage your TOC to the appropriate nested structure. It's all done using drag-and-drop actions. The utility does more than just TOC editing but I personally don't use it for anything else.

If your CHM uses more than 3 nested levels I don't think you could use option 1. On the face of it option 2 seems to work but I don't know whether the various ereaders support nesting levels of 4 or more.

08-02-2011, 03:57 PM	#3
jackie_w Grand Sorcerer Posts: 6,252 Karma: 16544692 Join Date: Sep 2009 Location: UK Device: ClaraHD, Forma, Libra2, Clara2E, LibraCol, PBTouchHD3	The <title>...</title> tags are not used by Calibre when defining chapters/TOC levels. There are (at least) 2 ways to get the correct TOC nesting. The first is to find out exactly how the source document has defined each nest level in the XHTML files. It could be as simple as <h1> for level 1, <h2> for level 2 and <h3> for level 3... however you may not get that lucky! You can try opening the CHM in the Calibre Viewer then using the right-click Inspect feature. Once you have figured out exactly how the chapter headings have been defined you can use the info to construct the correct entries for the box Convert - StructureDetection - Detect chapters at and also for the 3 TOC level boxes on the Convert - TOC page. This method requires you to have a working knowledge of html. The second approach requires less technical ability. If you have done your CHM to EPUB conversion and you have a correct, but flat, TOC you could try this EpubFixer utility to massage your TOC to the appropriate nested structure. It's all done using drag-and-drop actions. The utility does more than just TOC editing but I personally don't use it for anything else. If your CHM uses more than 3 nested levels I don't think you could use option 1. On the face of it option 2 seems to work but I don't know whether the various ereaders support nesting levels of 4 or more.