CGrep: a context-aware grep for source codes

This looks like a cool idea. I think a couple of (neat!) examples, stuff you can't easily do with normal grep, will go a very long way. The list of features is secondary in my opinion.

blah.c:<p><pre><code> void foo(item *x) { x-&gt;blah(1, 2, 3); x-&gt;blah (4, 5, 6); blah (7, 5, 1); foo (4, 5, 6); x-&gt;blah (4, 5, 6); } void foo2(item y, item *x) { y.blah(1, 2, 3); y.blah (4, 5, 6); blah (7, 5, 1); foo (4, 5, 6); x-&gt;blah (4, 5, 6); } </code></pre> search in blah.c for a call to <i>blah()</i> with <i>5</i> as 2nd argument from any structure or pointer.<p><pre><code> cgrep --code --semantic &#x27;_1 . OR -&gt; blah ( _2 , 5, _3 )&#x27; blah.c </code></pre> output:<p><pre><code> blah.c:6: x-&gt;blah (4, 5, blah.c:7: 6); blah.c:10: x-&gt;blah (4, blah.c:11: 5, 6); blah.c:18: y.blah (4, 5, blah.c:19: 6); blah.c:22: x-&gt;blah (4, blah.c:23: 5, 6);</code></pre>

I&#x27;ve thought about something like this before, and I&#x27;m really excited to see how fully-featured it is. Written in Haskell is also a big plus.

Funny, there was a bell-labs project with same name. It seems to be dead[0], but when we travel the time a few years back, we get a wonderful project homepage[1].<p>[0] <a href="http://www1.bell-labs.com/project/wwexptools/cgrep/" rel="nofollow">http:&#x2F;&#x2F;www1.bell-labs.com&#x2F;project&#x2F;wwexptools&#x2F;cgrep&#x2F;</a><p>[1] <a href="https://web.archive.org/web/20080513225010/http://www1.bell-labs.com/project/wwexptools/cgrep/" rel="nofollow">https:&#x2F;&#x2F;web.archive.org&#x2F;web&#x2F;20080513225010&#x2F;http:&#x2F;&#x2F;www1.bell-...</a>

I&#x27;m not sure where the documentation is.

I was curious, but had no idea how to use this on Ubuntu<p>sudo apt-get install haskell-platform<p>download and extract the tarball<p>cd awgn-cgrep-8af1beb<p>cabal cgrep.cabal<p>Unfortunately what stops me using it on a large codebase is that I can&#x27;t exclude directories like .repo (not sure about .git).

Darn, no SQL support. I often find myself wishing something like this existed for SQL, so I could, say, find all places where field X in table Y is updated, or referenced in a WHERE clause predicate, etc.

a binary for os x would be nice, since installing cabal&#x2F;ghc currently is a bit of a pain

How do I build this for Windows? I think I have something Haskell related installed because I see lambda as an icon on the .hs files.

What is the difference between this and ack?<p><a href="http://beyondgrep.com" rel="nofollow">http:&#x2F;&#x2F;beyondgrep.com</a>

Would love a UI for this and an editor -- I still use TextWrangler&#x2F;BBEdit daily to grep large chunks of source code and then edit in place (e.g. for refactoring). Just getting the search results requires opening up each file individually then editing, which is just too slow.

JSON output is incredibly useful in combination with jq[1] for processing the output. Some things become much easier than with standard *nix tools IMO.<p>[1] <a href="http://stedolan.github.io/jq/" rel="nofollow">http:&#x2F;&#x2F;stedolan.github.io&#x2F;jq&#x2F;</a>

Have you tried <a href="https://github.com/zeux/qgrep" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;zeux&#x2F;qgrep</a> ??? Fast regular expression grep for source code with incremental index updates

Any examples or reasons why I should use this over the_silver_searcher?

How does this compare with Ack?

can it be integrated with sublime text ?

Examples or it didn&#x27;t happen.

It really sucks that 15 languages that people use <i>less</i> than C# are supported before anyone thinks of adding support for C#.<p>Why does everyone hate Microsoft&#x27;s languages and love Apples?