Re: diff and patch

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.