VimGolfLookahead and Lookbehind
Look everywhere
Start file
Example for reference:
:%s/\(some\)\@<=thing/one/g
searches for all strings starting with some, then matching thing
changes thing into one
end result: something becomes someone
:%s/\(some\)\@<!thing/one/g
searches for all strings not starting with some, then matching thing
changes thing into one
end result: something is not changed, but everything changes to everyone
:%s/some\(thing\)\@=/every/g
searches for all strings ending with thing, then matching some
changes some into every
end result: something becomes everything
:%s/some\(thing\)\@!/every/g
searches for all strings not ending with thing, then matching some
changes some into every
end result: something is not changed, but someone becomes everyone
End file
Example for reference:
:%s/\(some\)\@<=thing/one/g
searches for all strings starting with some, then matching thing
changes thing into one
end result: someone becomes someone
:%s/\(some\)\@<!thing/one/g
searches for all strings not starting with some, then matching thing
changes thing into one
end result: something is not changed, but everyone changes to everyone
:%s/some\(thing\)\@=/every/g
searches for all strings ending with thing, then matching some
changes some into every
end result: everything becomes everything
:%s/some\(thing\)\@!/every/g
searches for all strings not ending with thing, then matching some
changes some into every
end result: something is not changed, but everyone becomes everyone
View Diff
0a1
>
6c7
< end result: something becomes someone
---
> end result: someone becomes someone
11c12
< end result: something is not changed, but everything changes to everyone
---
> end result: something is not changed, but everyone changes to everyone
16c17
< end result: something becomes everything
---
> end result: everything becomes everything
21c22
< end result: something is not changed, but someone becomes everyone
---
> end result: something is not changed, but everyone becomes everyone
Solutions
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#30 Patrick Mosby / @halbtuerke - Score: 27 - 05/07/13 @ 05:02
O<Esc>3jqqlxyyuh3j@"2jq@q@q@qZZ
@zulolosi: @q@q@q and 3@q are equivalent ! Best regards
@udioica: @zulolosi: Not in this case. When running a macro, commands don't expand the undo branch. That's why you can use u after a macro to undo the whole thing, instead of the million little steps it's made of. Result is, if you use u in a macro, it probably won't do what you want. Note that the U command isn't a "real" undo command; it's just a normal editor command that kinda looks like one. That's why u undoes U and such. U is safe in macros, though it's a bit quirky.
@zulolosi: Thanks for the great answer ! Best regards !
3 comments
