LegolasKiss wrote: [...] > > so the log is like this now: > > time cost is 3. 1234 > time cost is 3. 234 > time cost is 3. 5 > ..... > > i want to use the regular expression in vim to change all spaces into > ``0'',but i can't do this in one operation. > > my way is like this: > <esc>:%s/\(\d\.\ *\)\ /\10/g > [...]
This doesn't work, because it matches only in 1 position ( the first digit ), no matter how many whitespaces are following the dot. 1st try using '\zs' : :s/\d\.\s*\zs\s/0/g Still doesn't work, presumably because '\zs' is applied after the pattern matched and so the `real` start is still at the '\d'. 2nd try : :s/\s/0/g This matches any single whitespace, looks like it has some potential. Let's make it look behind for the digit part. The '\v' avoids leaning toothstick sick. :s/\v(\d\.\s*)@<=\s/0/g This does work. It matches a whitespace and afterwards checks whether the match is in a correct position. Finally check if there really is a digit following, making it more robust. :s/\v(\d\.\s*)@<=\s\ze\s*\d/0/g -ap --~--~---------~--~----~------------~-------~--~----~ You received this message from the "vim_dev" maillist. For more information, visit http://www.vim.org/maillist.php -~----------~----~----~----~------~----~------~--~---
