Editor - feature request

PenguinCEO · 09-01-2018, 11:46 AM

故事主要描述當伐木

kovidgoyal · 09-01-2018, 11:30 PM

XPath is fully function as well, not to mention that you can use regex inside XPath expressions. Your XPath expression should be

//h:meta[@name="mainsection"]

PenguinCEO · 09-02-2018, 04:59 AM

故事主要描述當伐木

kovidgoyal · 09-02-2018, 05:31 AM

If you want to generate a ToC with an XPath expression, your XPath expression has to end with a tag the toc entries will point to the matched tags. ToC entries cannot point to attributes.

kovidgoyal · 09-02-2018, 05:32 AM

And for that matter, toc entries must point to tags in the body not tags inside the <head> like <meta>

davidfor · 09-02-2018, 05:49 AM

@Kovid: I think in this case they want to generate the text to be used in the ToC entry when pointing to the file. There might not be something near the start of the file that is suitable. I know that I sometimes add a heading with a "hidden" class to achieve this. But, if there was something suitable in the <head> section, I would use it. For example, using the contents of the <title> tag would make sense.

In the OPs case, it looks like they wants to use the <meta> to specify which files have a ToC entry, and what the entry text is. I can see the point, but I'm not sure if would be a common use case. Especially as I tend to the opinion that all the files should have a ToC entry.

kovidgoyal · 09-02-2018, 06:10 AM

The way the ToC wizard works is that it generates both the text and the link for each toc entry, you cannot use it just to generate text. So therefore it requires a tag in the body with text included. If for some reason you dont want that text displayed, the way to do it, as davidfor mentioned is to simply hide it with CSS, the the ToC wizard will read it and link to it, but it wont be visible when the book is read.

09-01-2018, 11:46 AM	#1
PenguinCEO Member Retired Posts: 61 Karma: 47166 Join Date: Sep 2018 Device: a lot	故事主要描述當伐木故事主要描述當伐木 Last edited by PenguinCEO; 04-16-2020 at 06:37 AM.

09-02-2018, 04:59 AM	#3
PenguinCEO Member Retired Posts: 61 Karma: 47166 Join Date: Sep 2018 Device: a lot	故事主要描述當伐木 Last edited by PenguinCEO; 04-16-2020 at 02:04 AM.

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09-01-2018, 11:30 PM	#2
kovidgoyal creator of calibre Posts: 43,850 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	XPath is fully function as well, not to mention that you can use regex inside XPath expressions. Your XPath expression should be //h:meta[@name="mainsection"]

09-02-2018, 05:31 AM	#4
kovidgoyal creator of calibre Posts: 43,850 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	If you want to generate a ToC with an XPath expression, your XPath expression has to end with a tag the toc entries will point to the matched tags. ToC entries cannot point to attributes.

09-02-2018, 05:32 AM	#5
kovidgoyal creator of calibre Posts: 43,850 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	And for that matter, toc entries must point to tags in the body not tags inside the <head> like <meta>

09-02-2018, 05:49 AM	#6
davidfor Grand Sorcerer Posts: 24,907 Karma: 47303748 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	@Kovid: I think in this case they want to generate the text to be used in the ToC entry when pointing to the file. There might not be something near the start of the file that is suitable. I know that I sometimes add a heading with a "hidden" class to achieve this. But, if there was something suitable in the <head> section, I would use it. For example, using the contents of the <title> tag would make sense. In the OPs case, it looks like they wants to use the <meta> to specify which files have a ToC entry, and what the entry text is. I can see the point, but I'm not sure if would be a common use case. Especially as I tend to the opinion that all the files should have a ToC entry.

09-02-2018, 06:10 AM	#7
kovidgoyal creator of calibre Posts: 43,850 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	The way the ToC wizard works is that it generates both the text and the link for each toc entry, you cannot use it just to generate text. So therefore it requires a tag in the body with text included. If for some reason you dont want that text displayed, the way to do it, as davidfor mentioned is to simply hide it with CSS, the the ToC wizard will read it and link to it, but it wont be visible when the book is read.