Snippets to compare Windows Registry (version 5.0) *.reg files

sortreg.vim

" Delete large binary data blocks
g/  \x\{2}\(,\x\{2}\)*\(,\\\)\=/ d

" Sort values inside [] sections
g/\[*\]\n\p/+1,/^$/-1 sort

" Join section [] content together with $
g/\[*\]\n\p/,/^$/-1 s/$\n/ $ /
" Delete empty lines
%s/^$\n//
" Sort joined content
sort

" diff -a -u <first_file> <second_file>

" Extract changes from 1st file
g!/-\[.*\]/ d
" Extract changes from 2nd file
g!/+\[.*\]/ d

" Delete +/- at the begging of the line
%s/^[-+]\[/\[/
" Expand joined [] section content
%s/ \$ $/\r/
%s/ \$ /\r/g