How to efficiently escape meta-characters in vim search

问题

Perl provides quotemeta function, as well as the possibility to surround strings using the \Qlots-of-meta-characters\E construct, to make sure that all the characters between \Q and \E are interpreted as literals.

Very often I search strings full of meta characters in Vim. It's counterproductive to escape every special character individually. Is there anything like /\Qstring-to-search\E in Vim, which would make life easier?

回答1:

You can use /\Vstring-to-search.

There are two caveats:

• \ is special. You can still use all regex metacharacters by putting a \ in front of them.
• There is no \E equivalent. \V affects the rest of the regex.

See :help /\V.

You could combine this with the code from the answer in https://stackoverflow.com/a/676619/1848654 as follows:

vnoremap <C-f> "hy/\V<C-r>=substitute(@h,'[\/]','\\&','g')<cr>

The idea is:

• Copy ("yank") the selected text into register h: "hy
• Start search mode: /
• Prefill the beginning of the regex: \V
• Insert the contents of a register: <C-r>
• Don't use a real register; take the result of evaluating an expression instead: =
• Our expression (terminated by <cr>) is: substitute(@h,'[\/]','\\&','g')
  • Take the contents of the h register: @h
  • Apply a substitution. Insert a \ before every \ and /: substitute(...,'[\/]','\\&','g')

来源：https://stackoverflow.com/questions/50629000/how-to-efficiently-escape-meta-characters-in-vim-search