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    <p>Code browsing can mean a bunch of different things. The mode you mention of using grep implies to me you are looking for function definitions, or perhaps looking for uses of a particular function.</p> <p>While CEDET supports all the languages you list (some with the ctags parser), starting fresh in a new source code area is something CEDEt isn't too good at until it has indexed the entire project for those tasks you listed. You can, however, use <a href="http://www.gnu.org/software/global/" rel="nofollow">GNU Global</a> or <a href="https://www.gnu.org/software/idutils/" rel="nofollow">idutils</a>. I think idutils supports more languages.</p> <p>In CEDET, the `semantic-symref' and related commands will do a grep-like operation with grep, or global, or idutils (depending on what type of tag table you created.) Unlike grep style output, the symref output buffer shows which functions are using the command in question. You can then execute macros on the hits of the symbol you care about to do large refactoring operations.</p> <p>CEDET also supports a tags like jump to function, though if you are already using something like ctags that works fine too. CEDET is better when it comes to handling polymorphism in some cases.</p> <p>With CEDET, you can also get structured browsing via imenu, speedbar, and ECB (the emacs code browser). ECB is particularly good in that the methods buffer allows you to quickly navigate to different parts of a class. Particularly handy for classes where the pieces are spread around, like in C++. CEDET can even create cute UML diagrams of class inheritance structures which are connected to your code.</p> <p>CEDET does take some learning, and some of the languages you list are not fully supported for all the tools, though the basic browsing discussed above should be ok.</p>
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