I want to replace a series of pipeline characters with different values, how would I do this with regular expressions?
Example:
This | is | a | sentence
And | this | is | the | second | one
Final result:
This new is new2 a new3 sentence
And new this new2 is new3 the new4 second new5 one
If substitution values differ only in the numbers at the ends, use the command
:let n=[0] | %s/|/\='new'.map(n,'v:val+1')[0]/g
(See my answer to the question "gVim find/replace with counter" for detailed description of the technique.)
In case of substitution values that differ essentially from each other, change the command to substitute not a serial number of an occurrence, but an item of a replacement list with that number as an index.
:let n=[-1] | %s/|/\=['one','two','three'][map(n,'v:val+1')[0]]/g
To perform the substitutions on every line independently of each other, use
the :global command to iterate one of the above commands through the lines
of a buffer.
:g/^/let n=[0] | s/|/\='new'.map(n,'v:val+1')[0]/g
Similarly,
:g/^/let n=[-1] | s/|/\=['one','two','three'][map(n,'v:val+1')[0]]/g
Define a function:
fun CountUp()
let ret = g:i
let g:i = g:i + 1
return ret
endf
Now, use:
:let i = 1 | %s/|/\="new" . CountUp()/g
来源：https://stackoverflow.com/questions/7366430/csv-search-and-replace