I am trying to use a for loop iterator variable in a vim search pattern to determine for a range of words how man times they occur in a file. What I do so far is:
for i in range(1,40) | %s/SiTg//gn | endfor
I need the iterator variable i in the search pattern %s/S\iTg//gn to be bound by the for loop. How can I achieve this in vim?
Vimscript is evaluated exactly like the Ex commands typed in the : command-line. There were no variables in ex, so there's no way to specify them. When typing a command interactively, you'd probably use <C-R>= to insert variable contents:
:sleep <C-R>=timetowait<CR>m<CR>
... but in a script, :execute must be used. All the literal parts of the Ex command must be quoted (single or double quotes), and then concatenated with the variables:
execute 'sleep' timetowait . 'm'
In your example, you want to place the i variable into the :%s command:
for i in range(1,40) | execute '%s/S' . i . 'Tg//gn' | endfor
If you're not using the for loop for other purposes, you can always expand your regex to cover the whole range of numbers:
:%s/S\([1-4]0\|[1-3]*[1-9]\)Tg//gn
S1Tg four times, S2Tg four times, S3Tg four times etc.
Mar 18, 2015 at 11:03
vim guru for this.
Mar 18, 2015 at 11:09
for loop and grep it's quite easy: for I in {1..40}; do grep -c "S${I}Tg" FILE; done.
Mar 18, 2015 at 11:13
You can use the \=<subexpression> modifier, e.g.: :s/a/\=g:integer."a"/g ← it'll prepend all letters a with the g:integer's value.
