Help with poor chapter headings needed - Page 2

JLius · 05-10-2014, 12:12 PM

I was having trouble with spaces in between tags, e.g

Code:

<p class="P-P27" id="calibre_pb_3"><span class="S-T">1. Title of chapter</span>*</p>

Notice the space between and .

I just couldn't match the search on this - it just worked till the , it failed when I tried to include the 

After some googling, I did this:

Code:

<p class="P-P27" id="calibre_pb_3"><span class="S-T">(.+?)</span>\s</p>

And eventually replaced it with this:

Code:

<h1>\1</h1>

Is this sound?

theducks · 05-10-2014, 12:35 PM

Quote:

Originally Posted by JLius

Notice the space between and .

I just couldn't match the search on this - it just worked till the , it failed when I tried to include the 

After some googling, I did this:

Code:

<p class="P-P27" id="calibre_pb_3"><span class="S-T">(.+?)</span>\s*</p>

The * after the \s makes the space optional (\s*)
use a + if there must be 1 or more

JLius · 05-10-2014, 01:55 PM

Thank you!

toothpicz · 05-11-2014, 10:10 AM

Quote:

Originally Posted by theducks

All escapes are \

So then "\1" refers to keeping all the digits?
What if my titles are alphabets? eg: One, Two... ? Is there a way to keep my original text then?

Quote:

Originally Posted by theducks

BTW bold is no longer needed when changing from P to H#
By default: H# tags are already BOLD

Ahhh. That's why davidfor said to remove the bold tag. Thanks!

mrmikel · 05-11-2014, 10:46 AM

\1 in replace will take the place of whatever regular expression was first in find.

Example
Find
Chapter (.+?)

Replace
-CHAPTER \1-

Will give you -CHAPTER 1- replacing Chapter 1, -CHAPTER 2- replacing Chapter 2 and so on. What it gives you depends on the regular expression. If it is ([a-z]) it will give you a lower case letter. If it is ([0-9]) it will give you a single number.

You can have a series of them and so the second expressions capture would be output by \2.

You don't have to use what is found, so you can just use \2 without \1.

theducks · 05-11-2014, 10:58 AM

Quote:

Originally Posted by toothpicz

So then "\1" refers to keeping all the digits?
What if my titles are alphabets? eg: One, Two... ? Is there a way to keep my original text then?

Read this, the editor uses the same REGEX (this is what got through my thick skull and got me using REGEX)

https://www.mobileread.com/forums/sho...d.php?t=118569

mrmikel · 05-11-2014, 11:01 AM

100% with theducks. There is NOTHING regular about regular expressions, except it regularly gives you headaches. Sigil regex is not the same as calibre regex, which is not the same as .....!

BTW be very careful that if your search expression contains a period, you are not set to regex. Period means something in regex beyond just a period, unless it is prefaced with a \. You will get interesting or hair-tearing results...I know. I have.

theducks · 05-11-2014, 11:52 AM

Quote:

Originally Posted by mrmikel

100% with theducks. There is NOTHING regular about regular expressions, except it regularly gives you headaches. Sigil regex is not the same as calibre regex, which is not the same as .....!

BTW be very careful that if your search expression contains a period, you are not set to regex. Period means something in regex beyond just a period, unless it is prefaced with a \. You will get interesting or hair-tearing results...I know. I have.

Calibre editor routinely escapes those for you if you find selected text (ctrl-F) to populate the search box

mrmikel · 05-11-2014, 01:53 PM

I didn't know that. I will have to try the shortcut. Save me some steps and headaches.

cager · 05-13-2014, 05:49 AM

Thanks, and thanks again, to all who have made comments and extended the original query.
I have found this very useful and instructive. All I need now is the time to experiment.

05-10-2014, 12:12 PM	#16
JLius Village idiot Posts: 157 Karma: 519566 Join Date: Mar 2014 Location: Belgium Device: sony PRS T-1	I was having trouble with spaces in between tags, e.g Code: <p class="P-P27" id="calibre_pb_3"><span class="S-T">1. Title of chapter</span>*</p> Notice the space between </span> and </p>. I just couldn't match the search on this - it just worked till the </span>, it failed when I tried to include the </p> After some googling, I did this: Code: <p class="P-P27" id="calibre_pb_3"><span class="S-T">(.+?)</span>\s</p> And eventually replaced it with this: Code: <h1>\1</h1> Is this sound?

05-11-2014, 11:01 AM	#22
mrmikel Color me gone Posts: 2,089 Karma: 1445295 Join Date: Apr 2008 Location: Central Oregon Coast Device: PRS-300	100% with theducks. There is NOTHING regular about regular expressions, except it regularly gives you headaches. Sigil regex is not the same as calibre regex, which is not the same as .....! BTW be very careful that if your search expression contains a period, you are not set to regex. Period means something in regex beyond just a period, unless it is prefaced with a \. You will get interesting or hair-tearing results...I know. I have. Last edited by mrmikel; 05-11-2014 at 11:07 AM.

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05-10-2014, 01:55 PM	#18
JLius Village idiot Posts: 157 Karma: 519566 Join Date: Mar 2014 Location: Belgium Device: sony PRS T-1	Thank you!

05-11-2014, 10:46 AM	#20
mrmikel Color me gone Posts: 2,089 Karma: 1445295 Join Date: Apr 2008 Location: Central Oregon Coast Device: PRS-300	\1 in replace will take the place of whatever regular expression was first in find. Example Find Chapter (.+?) Replace -CHAPTER \1- Will give you -CHAPTER 1- replacing Chapter 1, -CHAPTER 2- replacing Chapter 2 and so on. What it gives you depends on the regular expression. If it is ([a-z]) it will give you a lower case letter. If it is ([0-9]) it will give you a single number. You can have a series of them and so the second expressions capture would be output by \2. You don't have to use what is found, so you can just use \2 without \1.

05-11-2014, 01:53 PM	#24
mrmikel Color me gone Posts: 2,089 Karma: 1445295 Join Date: Apr 2008 Location: Central Oregon Coast Device: PRS-300	I didn't know that. I will have to try the shortcut. Save me some steps and headaches.

05-13-2014, 05:49 AM	#25
cager Connoisseur Posts: 59 Karma: 118112 Join Date: Jul 2013 Device: none	Thanks, and thanks again, to all who have made comments and extended the original query. I have found this very useful and instructive. All I need now is the time to experiment.