How to find all occurrences of a variable in Vim? -

in vim, how find occurrences of variable in files under directory?

i know vimgrep works sometimes, looks text , doesn't work if other classes have variables of same name , want variable under specific class.

what should do? or should ide instead?

why want use ide when have one? vim is ide configurable , usable different languages..

you use cscope build database of code. database

• allows searching code for:
  • all references symbol
  • global definitions
  • functions called function
  • functions calling function
  • text string
  • regular expression pattern
  • a file
  • files including file

further features of cscope:

• curses based (text screen)
• an information database generated faster searches , later reference
• the fuzzy parser supports c, flexible enough useful c++ , java, , use generalized 'grep database' (use browse large text documents!)
• has command line mode inclusion in scripts or backend gui/frontend
• runs on flavors of unix, plus monopoly-controlled operating systems.

once database created, browse through usages of variables, functions, etc.

---

edit (slightly ot):
cool thing that's quite handy when working vim on code taglist plugin uses ctags:

the "tag list" plugin source code browser plugin vim , provides overview of structure of source code files , allows efficiently browse through source code files different programming languages.