在Emacs中搜索目录

Question

I recently switched from Eclipse to Emacs and one feature that I really miss is Eclipse file search. It allows you to search a whole project very accurately (albeit very slowly) for a particular search term. In Emacs I have been using Mx rgrep but it doesn't seem to give reliable results. For example, If I search for 0.1 it will not return results for lines of code containing '0.1' (a match surrounded by quotation marks).

Can anyone suggest a more accurate alternative to rgrep ?

Answer 1

I recommend use "igrep" lib for searhing in files, you can find it here . To start using add this rows to your .emacs file (don't forget to igrep.el to emacs-path, it can be ~/.emacs.d/ for example):

(require 'igrep)
(global-set-key "\C-cf" 'igrep-find)

So you can start search by using [C-cf], it ask pattern for file names in search, and query to search. Hope it helps.

Answer 2

I recommend ack . It can intelligently ignore files you don't want to search (eg version control directories).

Answer 3

I recommend beagrep if you are working on large projects such as linux kernel or android.

It takes a desktop search engine beagle and grep together, so common programming grep tasks can be done very quickly. For eg, grepping for readlink in android source code can take me more than half an hour, with beagrep, it only takes half a second.

Check out my github page .

Answer 4

Mx multi-occur-in-matching-buffers takes a regex to select the buffers you wish to search in, and a second regex to search for the item you're looking for.

A common workflow with emacs is to never (or only rarely) close a buffer in a project when working on that project, and so after you've been hacking around for a while, you'll likely have most files open anyway. Of course, if you don't work like this, then using multi-occur... is of less use.