#!/usr/bin/env python
import os, re, string, sys, fnmatch

def dirSourceScanner():
    path= "."
    joinedList = []
    for files in os.listdir(path):
    	if fnmatch.fnmatch(files, '*.es'):
            joinedList.extend(files.split())
            try:
                for eachFile in joinedList:
                    fObj = open(eachFile, 'r')
                    incorrect = []
                    for lines in fObj:
                        lines = lines.strip()
                        incFilter = re.findall('^\w+\s+=\s+', lines)
                        for variables in incFilter:
                            if variables:
                                items = string.replace(variables, ' = ', '')
                                incorrect.extend(items.split())
                            elif not variables:
                                print '[+]No variables found.'
                                sys.exit(0)
                            elif len(variables) <= 0:
                                print '[+]Incorrect variable declaration not found. Program terminating.'
                                sys.exit(0)
                    fObj.close()
            except IOError:
                    print 'Exception occurred'
                    
            try:
                fObj2 = open(eachFile, 'r')
                correct = []
                for lines in fObj2:
                    lines = lines.strip()
                    incFilter = re.findall('var\ \w+', lines)
                    for variables in incFilter:
                        if variables:
                            items = string.replace(variables, 'var ', '')
                            correct.extend(items.split())
                        elif not variables:
                            print '[+]No variables found.'
                            sys.exit(0)
                        elif len(variables) <= 0:
                            print '[+]No variable initialization keyword found.'
                fObj2.close()
            except IOError:
                    print 'Exception occurred'

	    print '\n[+]Source File    : ', eachFile
	    print '[+]Parsing Result :'
	    print '.......................................'
	    diffResult = list(set(incorrect).difference(correct))
	    if len(diffResult) > 0:
		print '[+]Probably these are the incorrect variables names list:'
		for unInit in diffResult:
		    print '   >>', str(unInit)
	    else:
		print '[+]No variable initialization errors found in this script.\n'

def banner():
    print '###########################################################'
    print '[*]Variable Declaration Type Scanner                      #'
    print '[*]Author: Sujit Ghosal                                   #'
    print '###########################################################'

def usage():
    print '[+]Usage: xylux ~/codesamples $sudo chmod a+x parser.py [For Unix]'
    print '[+]Usage: xylux ~/codesamples $python parser.py [For Unix]'
    print '[+]Usage: C:\CodeSamples\python parser.py [For Windows]'

def main():
    if not len(sys.argv) == 1:
        banner()
        usage()
        sys.exit(0)
    else:
        banner()
        dirSourceScanner()
        print '\n\n[+]File parsing completed.'

if __name__ == "__main__":
    main()