c2sqlite

Do you use vim for coding? Isn’t it sometimes annoying that you don’t have all the fancy features that some IDEs have?
c2sqlite uses libclang to store basic information of your c project into a sqlite database. Current information that is stored:

• which function calls which function
• declaration of functions
• function parameters

Example:
./c2sqlite c2sqlite.c
This creates a file called test.db; it is a sqlite database.
You can open it with: sqlite3 test.db
Enable information about columns: .explain
Show tables: .tables
Following tables are available:

• function_calling
• function_declaration
• function_param

Now show alle functions that are declared in c2sqlite.c:
SELECT * FROM function_declaration WHERE file='c2sqlite.c';

name file line col
------------------------------ ------------- ---- ----
db_open c2sqlite.c 19 1
db_close c2sqlite.c 48 1
db_begin c2sqlite.c 54 1
db_end c2sqlite.c 64 1
db_add_funcparam c2sqlite.c 74 1
db_add_funccall c2sqlite.c 97 1
db_add_funcdecl c2sqlite.c 120 1
functionDeclVisitor c2sqlite.c 149 1
cursorVisitor c2sqlite.c 169 1
main c2sqlite.c 197 1

Besides the name of the function you find some information about the location (line, column), too.
Next table: function_calling
Lets look up which functions main is calling: SELECT * FROM function_calling WHERE caller='main';

caller callee file line col
-------------------- -------------------- -------------------- -------------------- ----
main unlink c2sqlite.c 203 2
main db_open c2sqlite.c 204 11
main db_begin c2sqlite.c 207 2
main clang_createIndex c2sqlite.c 209 10
main clang_parseTranslationUnit c2sqlite.c 212 8
main fprintf c2sqlite.c 215 4
main exit c2sqlite.c 216 4
main clang_getTranslationUnitCursor c2sqlite.c 219 25
main clang_visitChildren c2sqlite.c 221 3
main clang_disposeTranslationUnit c2sqlite.c 223 3
main clang_disposeIndex c2sqlite.c 226 2
main db_end c2sqlite.c 228 2
main db_close c2sqlite.c 229 2

Last but not least: function_param
SELECT * FROM function_param WHERE function='main';
This shows us which parameters the main function has:

function name type id
-------------------- -------------------- -------------------- --------------------
main argc int 17
main argv const char *[] 114

Have a lot of fun!