Sigil won't save changes to id attribute in h1 tag

[TrevN]

I noticed Sigil had given the same id attribute (heading_id_2) to the h1 tags in most (but not all) of my xhtml files. I changed them all so they were numbered consecutively (heading_id_1, heading_id_2, ....._3, etc) and saved the book. When I opened up the book again, in Sigil, it changed all the id attributes back to heading_id_2.

Does anyone know why this happens and how to overcome it?

[Doitsu]

AFAIK, Sigil uses the heading_id tags for the automatic TOC generation. For some odd reason it restarts numbering for each .xhtml source page, however, this doesn't affect TOC generation.

If you want consecutive id tags to simplify the generation of an inline TOC, activate the regular expressions mode, search for id="heading_id_\d+" and replace it with nothing.

Then use a regular expression to add a heading id number based on the chapter number and regenerate the TOC. For example, for a simple h1 chapter heading that contains only the chapter number (e.g. <h1>12</h1>) you'd use:

Find: <h1>(\d+)</h1>
Replace: <h1 id="heading_id_\1">\1</h1>

[mmat1]

Originally Posted by TrevN

I noticed Sigil had given the same id attribute (heading_id_2) to the h1 tags in most (but not all) of my xhtml files. I changed them all so they were numbered consecutively (heading_id_1, heading_id_2, ....._3, etc) and saved the book. When I opened up the book again, in Sigil, it changed all the id attributes back to heading_id_2.

Does anyone know why this happens and how to overcome it?

I never noticed this behaviour, Sigil never changes id's which are already there. Even if you press "Create toc from headings"

This behaviour will result in duplicate id's if you merge 2 files.

Sorry, but test it again !

[TrevN]

Guys - thanks for your responses. I tried it again and this time it worked ok. User error first time around, no doubt, but I don't know what I did wrong. Oh well.