Finding numbers and batch perform arithmetics in text?

Ciprian Popa

Hi,
This is the first time address to forum, but after checking I couldn’t find a similar topic, so I start this one with the formulation of the problem:
I am trying to edit a file (in fact many) that has numbers like in the example format below:
“1. Introduction/211,Black,notBold,notItalic,open,FitPage
2. Amino Acid Nitrogen in Sediments/211,Black,notBold,notItalic,open,FitPage
3. Bulk Characterization of Sediments: C/N/213,Black,notBold,notItalic,open,FitPage
4. Isotopes and Diagenetic Fractionation/214,Black,notBold,notItalic,open,FitPage
5. Molecular-Level Isotope Analyses/216,Black,notBold,notItalic,open,FitPage
References/219,Black,notBold,notItalic,open,FitPage”
Each “/###” represents a number (page number in a pdf in this example) that needs to be offset by a certain amount. Is there any implemented function that can do that in batch?
I.e. say /001 + 12 = /013, /009 +12 = /021 etc.

Alan Kilborn

@ciprian-popa said in Finding numbers and batch perform arithmetics in text?:

Is there any implemented function that can do that in batch?

Not natively with just Notepad++ itself.
However, you could do it with a scripting plugin such as PythonScript.
From the docs is a hint at doing it:

The rereplace function is called with the regular expression to search for and the function to be called to replace matches.

So maybe for your case it would look like this:

def add_12(m):
    new_page = int(m.group(1)) + 12
    return '/{:03}'.format(new_page)

editor.rereplace('/([0-9]{3})', add_12)

Ciprian Popa

@alan-kilborn Hi Alan,
Thank you for that piece of code!