On 04/09/2010 04:25 PM, tomPorter wrote:
Is there a way to create a new window and populate it with only the
found items?
not readily (no single-step solution), but it can be hacked.
Start by cloning the document into a file you can rip up...either:
:%y " yank the whole document
:new " create a new blank window
:0p " dump in the yanked content
or
:new
:0r original.txt
or just use your OS to copy the file so you don't mung the original.
Then slice away the stuff you don't care about
:%s/&&\w\+/\r&/g
" put each item of interest on its own line
:v/^&&\w\+/d
" delete all the lines that don't start with "&&"
:sort u " sort the resulting lines and make unique
A colleague is working on a some large files where we use
substitution variables than start with '&&'. Assume these are
terminated by white space, so are 'words' to vim.
I'm assuming, based on your example description that items of
interest can be found with the regexp "&&\w\+", or if they have
more complex punctuation in them, you could use "&&\S*"
OR is there a variable that contains all items matching the regex
search term?
no
He would like to extract just the tokens that start with '&&' and
populate a new window with those, so he can pull the tokens from two
separate files and see if all that occur in one occur in the other.
Once you have this list of uniquely sorted tokens for file A and
for file B, you can use vimdiff on them to compare the
presence/absence between the two. I use this pattern frequently
for comparing selected attributes of pairs of files (such as your
items-of-interest, or columns of tab/comma-delimited files, etc).
The basic pattern is
clone file A to A'
remove the stuff from A' that you don't care about
clone file B to B'
remove the stuff from B' that you don't care about
use vimdiff to compare A' and B'
-tim
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