nrosner

nrosner / jarstats.py

Created March 4, 2017 02:25

A Python script to count the number of classes and methods in a .jar file using javap.

	#!/usr/bin/env python

	import sys, os, re, zipfile, subprocess

	# Rudimentary parsing of javap output
	regex_type = r'[a-zA-Z0-9.<>, ?$[\]]+'
	regex_class = r'(?:(public\|private\|protected) )?((?:(?:static\|abstract\|final) ?)*)(class\|interface) (' + regex_type + ') (?:extends ((?:' + regex_type +'),?)+ )?(?:implements ((?:[a-zA-Z0-9\\.<>\\?\\$])+,?)+ )?{([^}]+)}'
	regex_method = r'(?:(public\|private\|protected) )?((?:static\|abstract\|final) ?)(?:(' + regex_type + ') )?([a-zA-Z]+)\$([^\$])\\)'
	regex_field = r'(?:(public\|private\|protected) )?((?:(?:static\|abstract\|final) ?)*)(' + regex_type + ') ([a-zA-Z0-9]+)'
	RE_TYPE = re.compile(regex_type)