Multiline Regex Footer

hover · 10-25-2009, 05:45 AM

Hey,

since many hours im trying to cut the page number of an ebook with the "footer remove" option.

Code:

4&nbsp;<br>
&nbsp;<br>
<hr>
<A name=5></a>&nbsp;<br>
PROLOG &nbsp;<br>
&nbsp;<br>

This is the code i try to cut and i fail because there are multiple lines.

I have searched this board and many other regex, but didnt find a solution.
My tries so far:

Code:

(?m)((&nbsp;<br>)(<hr>))

Code:

^((\d+&nbsp;<br>)\n(&nbsp;<br>)\n(<hr>)\n(<A name=\d+</a>&nbsp;<br>))^

I tried them in every possible constelation, but i think that this calibre regex blocks multiline?

Thanks for answers!

user_none · 10-25-2009, 09:45 AM

Quote:

Originally Posted by hover

I tried them in every possible constelation, but i think that this calibre regex blocks multiline?

Multi line works fine but you need to check what kind of line ending is being used. It could be \r\n or just \n. A way to avoid that is to use (\r\n|\n) or (\r*\n).

hover · 10-25-2009, 02:46 PM

Thanks for the comment, but i dont get it.
I have tried every possibility i can:

Code:

(\d+&nbsp;<br>(\r\n)&nbsp;<br>(\r\n)<hr>)
(\d+&nbsp;<br>\r\n&nbsp;<br>\r\n<hr>)
(\d+&nbsp;<br>\n&nbsp;<br>\n<hr>)
(\d+&nbsp;<br>&nbsp;<br><hr>)\n
((\d+&nbsp;<br>)(\r\n)(&nbsp;<br>)(\r\n)(<hr>))

nothing works, thanks

user_none · 10-25-2009, 04:44 PM

Hm... try replacing   with .+? and see if that makes a difference.

hover · 10-26-2009, 12:05 PM

thanks but the regex findes the   line, if its only 1 line.
But if i go multiline, it doesnt find the 2nd and so on lines..

I have searched for hours and nobody knows how to go multiline with regex

kovidgoyal · 10-26-2009, 12:07 PM

Add (?m) to the start of the regex

See http://docs.python.org/library/re.html

user_none · 10-26-2009, 08:14 PM

I've made some changes to where in the conversion process the regex matches to remove the content. Subsequent versions it will work better.

hover · 10-27-2009, 05:01 AM

thanks for the (?m) hint but i still dont get it:

Code:

(?m,"&nbsp;<br>\n<hr>")
(?m)(&nbsp;<br>\n<hr>)
(?m)((&nbsp;<br>)\n(<hr>))

any other clues? thanks

tschan · 02-02-2010, 11:39 AM

I've got the same task at hand. Matching a multiline footer. Adding "(?m)" to the beginning of the expression doesn't work either. Any ideas?

Manichean · 02-03-2010, 03:50 AM

I've had quite similar problems.

chaley · 02-03-2010, 04:23 AM

Given the input

Code:

4&nbsp;<br>
&nbsp;<br>
<hr>
<A name=5></a>&nbsp;<br>
PROLOG &nbsp;<br>
&nbsp;<br>

Try "(?m)^\d+ <br>\s+ <br>$". This should match the first two lines. Add grouping parentheses if you need them.

10-25-2009, 05:45 AM	#1
hover Junior Member Posts: 7 Karma: 10 Join Date: Oct 2009 Device: Amazon Kindle 2	Multiline Regex Footer Hey, since many hours im trying to cut the page number of an ebook with the "footer remove" option. Code: 4 <br>  <br> <hr> <A name=5></a> <br> PROLOG  <br>  <br> This is the code i try to cut and i fail because there are multiple lines. I have searched this board and many other regex, but didnt find a solution. My tries so far: Code: (?m)(( <br>)(<hr>)) Code: ^((\d+ <br>)\n( <br>)\n(<hr>)\n(<A name=\d+</a> <br>))^ I tried them in every possible constelation, but i think that this calibre regex blocks multiline? Thanks for answers!

10-25-2009, 02:46 PM	#3
hover Junior Member Posts: 7 Karma: 10 Join Date: Oct 2009 Device: Amazon Kindle 2	Thanks for the comment, but i dont get it. I have tried every possibility i can: Code: (\d+ <br>(\r\n) <br>(\r\n)<hr>) (\d+ <br>\r\n <br>\r\n<hr>) (\d+ <br>\n <br>\n<hr>) (\d+ <br> <br><hr>)\n ((\d+ <br>)(\r\n)( <br>)(\r\n)(<hr>)) nothing works, thanks Last edited by hover; 10-25-2009 at 02:48 PM.

10-27-2009, 05:01 AM	#8
hover Junior Member Posts: 7 Karma: 10 Join Date: Oct 2009 Device: Amazon Kindle 2	thanks for the (?m) hint but i still dont get it: Code: (?m," <br>\n<hr>") (?m)( <br>\n<hr>) (?m)(( <br>)\n(<hr>)) any other clues? thanks

02-03-2010, 04:23 AM	#11
chaley Grand Sorcerer Posts: 11,740 Karma: 6997045 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	Given the input Code: 4 <br>  <br> <hr> <A name=5></a> <br> PROLOG  <br>  <br> Try "(?m)^\d+ <br>\s+ <br>$". This should match the first two lines. Add grouping parentheses if you need them.

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10-25-2009, 04:44 PM	#4
user_none Sigil & calibre developer Posts: 2,488 Karma: 1063785 Join Date: Jan 2009 Location: Florida, USA Device: Nook STR	Hm... try replacing   with .+? and see if that makes a difference.

10-26-2009, 12:05 PM	#5
hover Junior Member Posts: 7 Karma: 10 Join Date: Oct 2009 Device: Amazon Kindle 2	thanks but the regex findes the   line, if its only 1 line. But if i go multiline, it doesnt find the 2nd and so on lines.. I have searched for hours and nobody knows how to go multiline with regex

10-26-2009, 12:07 PM	#6
kovidgoyal creator of calibre Posts: 43,850 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Add (?m) to the start of the regex See http://docs.python.org/library/re.html

10-26-2009, 08:14 PM	#7
user_none Sigil & calibre developer Posts: 2,488 Karma: 1063785 Join Date: Jan 2009 Location: Florida, USA Device: Nook STR	I've made some changes to where in the conversion process the regex matches to remove the content. Subsequent versions it will work better.

02-02-2010, 11:39 AM	#9
tschan Junior Member Posts: 2 Karma: 10 Join Date: Sep 2009 Device: Sony PRS-505	I've got the same task at hand. Matching a multiline footer. Adding "(?m)" to the beginning of the expression doesn't work either. Any ideas?

02-03-2010, 03:50 AM	#10
Manichean Wizard Posts: 3,130 Karma: 91256 Join Date: Feb 2008 Location: Germany Device: Cybook Gen3	I've had quite similar problems.