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diff_out.py

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#!/usr/bin/env python

import sys

try: 
    one = sys.argv[1]
    two = sys.argv[2]
except IndexError:
    print "usage: diff_out.py intput.log output.log"
    sys.exit(1)

def line(f):
    in_dump = False
    for l in f:
        if in_dump: yield l
        if "%%% BEGIN DUMP %%%" in l:
            in_dump = True
            continue;
        if "%%% END DUMP %%%" in l:
            in_dump = False
            continue
        continue
    yield None
    pass

def strip(f1,f2):
    in_dump = False
    for l in f1:
        if in_dump: f2.write(l)
        if "%%% BEGIN DUMP %%%" in l:
            in_dump = True
            continue;
        if "%%% END DUMP %%%" in l:
            in_dump = False
            continue
        continue
    pass

def simple_diff():
    file1 = open(one,"r")
    file2 = open(two,"r")
    for l1,l2 in zip(line(file1),line(file2)):
        if l1 == l2: continue;
        print one,": ",l1,
        print two,": ",l2

def real_diff():
    for fname in [one,two]:
        i = open(fname,"r")
        o = open(fname+".stripped","w")
        strip(i,o)
    print one+".stripped",two+".stripped"

real_diff()

    






    

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