count # of functions/methods in a project 1

[ArmenD]

hi,
does anyone know how to count # of functions in a c/c++ project repository using bash or csh?
is there a mixture of grep/wc/and redirecting operators.

say for instance there is a proj directory called Foo with subfolders A,B,C.

 

[stefanwagner]

Do the c/c++ - files follow a coding style like

RETURNTYPE mName (<optional: paramlist>)
{

or:

RETURNTYPE mName (<optional: paramlist>) {

And do you have 'find'?

find PROJECTFOLDER -name "*.c" -exec grep {EXPRESSION} \;

with EXPRESSION something like:

"^CNAME CNAME (.*)[ \t]*$"

and CNAME:

[a-zA-Z][a-zA-Z0-9_]*

This will not solve #define evil macros and functions in header-files, and return-types of pointertype, but could be a starting point:

find $1 -name "*.cc" -exec grep "^[a-zA-Z][a-zA-Z0-9_]* [a-zA-Z][a-zA-Z0-9_]* (.*)[ \t]*$" {} \;

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[ArmenD]

this is a good start, but I have define's in my code and I would need a broader range of detections.

 

[stefanwagner]

What means 'a broader range of detections'?

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[Salem]

Well if you're going to restrict yourself to such a limited set of tools, then expect poor results.

Why not actually use the tools available to give you a direct answer without all the messing about with increasingly bizarre grep expressions.

Example

gcc prog.c
nm -g a.out | awk 'NF==3 && $2=="T" && $3 !~ /^_/ { print $3 }'

Study the output of your 'nm' command carefully, it contains all the symbols used in your program. From that, it's usually a pretty easy deal to get a list of say all the global functions.

Appending [tt]| wc[/tt] is a formality.

Or do [tt]man ctags[/tt] to find out the information it can retrieve about source files. Parsing the output of ctags would be considerably easier than parsing the source code directly.

--

 

[Mag0007]

you can first "indent" your code, and then run the mixture of awk and grep commands

 

[stefanwagner]

Good point, salem. Here you have an star (*).

Mag0007: This will help with coding-styles, but not with macros.
Sorry, no star


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