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From: Arjen <user153@newsgrouper.org.invalid>
Newsgroups: comp.lang.tcl
Subject: Re: diff and patch
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Date: Tue, 17 Jun 2025 12:13:59 GMT
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Mark Summerfield <m.n.summerfield@gmail.com> posted:

> I want these functions:
> 
>     proc diff {old new} -> # diff data "ddata"
>     proc patch {old ddata} -> # new
> 
> where old and new are strings.
> 
> I thought the Tcllib's rcs module could do this but I can't figure it out.
> 
> Is this possible using the rcs module or using the struct::list module's 
> LCS functions?

The patch functionality (but not the diff) is provided by the textutil package, 
if I understand it correctly.