> Normally '/' in normal mode starts to search for the pattern horizontally
> (line after line, left to right). Is it possible to search text vertically
> (column after column, top to bottom) in vim?
>
> For example, the pattern 01100010 should highlight the second column of the
> below text.
>
> 1001
> 1111
> 1111
> 0011
> 0000
> 0010
> 1111
> 0000
Assuming constant line-length...
While it's a bit of an uuuuuuuuugly hack of a generated regexp,
in vim7 (where List native types and join/split functions were
added) you can use
:let @/=join(split('01100010', '....@='), '\_.\{4}')
where {4} is the number of characters per line. If all the lines
in your file have the same length, you can pull that length in
automatically by sniffing the length of the current line you're on:
:let @/=join(split('01100010', '....@='),
'\_.\{'.strlen(getline('.')).'}')
which makes this nice for a mapping/command/function.
As a bit of explanation, this sets your search register to the
following regexp:
0\_.\{4}1\_.\{4}1\_.\{4}0\_.\{4}0\_.\{4}0\_.\{4}1\_.\{4}0
You can then use n/N to search forward/backward for the pattern
you've unceremoniously shoved in your search register. It should
find the first character of the match, and if you have 'hls' set,
will highlight through the last character (though it highlights
it character-wise which looks a little funny).
-tim
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