Rechenfunktion mit RegEx

[calibre-ak-4711]

Hello friends,

I need your help: I ​​edit with the Sigil editor an epub with about 3000 footnotes.
I must implement these:

Search: (^)(\d+)()
Replace <a href="Anm.xhtml#\2+47"><sup id = "n\2+47">[\2+47]</sup></a>
--- The footnote found is intended to be e.g. always add 47! ---
Result: <a href="Anm.xhtml#253"><sup id="n253">[253]</sup></a>

With RegEx, this is not possible, but I am on the net to the option:
Function Mode for Search & Replace in the Editot of the new internal Caliber editor. Here, a RegEx term can be extended by a function using Python.

Since I have never programmed with Python and would not want to learn it at 72 years, I ask you to help me solve my problem.

MfG Andreas

[Thom*]

The following Regex-Function will add 47 to any number between ^and. You can then use normal Regex to make any other changes that you desire.

In the Find box put "^(\d+)" without the quotes.

In the Function box put "Add numbers" again without the quotes.

The code required for "Add numbers" is as follows:

import regex
from calibre import replace_entities
from calibre import prepare_string_for_xml                  
                        
def replace(match, number, file_name, metadata, dictionaries, data, functions, *args, **kwargs):
    
    return ('<sup>' + str(47 + int(match.group(1))) + '</sup>')

Also, it should be noted that 72 is not too old to learn new things.

[calibre-ak-4711]

Hello Thom,
thank you for your quick help!
Your function works with INT:
Return ('<sup>' + str (33 + int (match.group (1))) + '</ sup>')
But not with LONG
Return ('<sup>' + str (long(293) + long (match.group (1))) + '</ sup>')
I hope you have a solution for this.

PS: if you are over 70 years old, you should use your limited time for food, drink and pretty women!

MfG
Andreas

[Thom*]

I have no problem using either int or long data types to make this function work regardless of the size of the number. Is it possible that you are using an older version of Calibre'? I don't know what the problem is.

Regarding septuagenarians, my mistake, you are absolutely correct.

[calibre-ak-4711]

Hello Thom,

SORRY: I searched: (^)(\d+)() instead of ^(\d+) !!!

Thanks again

MfG
Andreas

[Thom*]

Also, the space in </ sup> might be problematic.