Using cscope with Emacs to browse Java source codes.


Using cscope with Emacs to browse Java source codes.

cscope can be used to browse Java symbols too. Use these commands at the top-level directory to create the index:

Enter into the source directory. Here I want to browse android source code. Hence I will cd into android source directory then execute below commands.

$ find . -name “*.java” > cscope.files
$ cscope -b

Then add this line at the bottom of xcscope.el to load cscope-mode whenever a Java file is opened:

(add-hook ‘java-mode-hook (function cscope:hook))

In my system the xcscope.el is located in /usr/share/emacs/site-lisp/xcscope.el 

Then use the xcscope in emacs as usual. If you are using a single command cscope-indexer -r to gnerate the cscoape database then use the below hack.

sudo cp /usr/bin/cscope-indexer /usr/bin/cscope-indexer-java

sudo vim /usr/bin/cscope-indexer-java

search for a line similar to “egrep -i ‘\.([chly](xx|pp)*|cc|hh)$’ | \”  and modifiy it as below

egrep -i ‘\.([chly](xx|pp)*|cc|hh|java)$’ | \

Now you can use a single command to genateate the database. Goto the source directory and use below command.

$ cscope-indexer-java -r

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