How can we ignore N001, N002, Nxxx sequence number during compare , other difference that are same

[Dr-Chapatine]

Hi bloggers and support,

I have uploaded 2 files, that have N001, N002, Nxxx sequence numbers.
The files are identical except in snippet3, one line is deleted, and the N001, N002, Nxxx are re-sequenced.
we always want Nxxx numbers ignore in comparisons.
There will always be a space following the Nxxx number, so that can be use as a delimiter in a Regular expression, while I'm not sure how to write a RE or deploy it here.
Thanks

seqno_snippet2.txt
seqno_snippet3.txt

[sdottaka]

If there is a Plugins→Prediffer→IgnoreLeadingNumbers menu item, select it and the Nxxx at the beginning of the line will be ignored.

Since only the 32-bit version of WinMerge is currently installed with this plug-in, if the above menu item is not present, download IgnoreLeadingNumbers.sct by clicking the download icon at the following URL, and then add it to C:\Program Files Files\WinMerge\MergePlugins folder.

https://github.com/WinMerge/winmerge/blob/master/Plugins/dlls/IgnoreLeadingLineNumbers.sct

After that, start WinMerge and select the Plugins→Prediffer→Ignore Leading Numbers menu item.

[Dr-Chapatine]

Problem solved. Thank you very much for the detailed and speedy reply :)