/extern/llvm/utils/DSAclean.py

#! /usr/bin/python



#changelog: 

#10/13/2005b: replaced the # in tmp(.#*)* with alphanumeric and _, this will then remove

#nodes such as %tmp.1.i and %tmp._i.3

#10/13/2005: exntended to remove variables of the form %tmp(.#)* rather than just 

#%tmp.#, i.e. it now will remove %tmp.12.3.15 etc, additionally fixed a spelling error in

#the comments

#10/12/2005: now it only removes nodes and edges for which the label is %tmp.# rather

#than removing all lines for which the lable CONTAINS %tmp.#

import re

import sys

if( len(sys.argv) < 3 ):

	print 'usage is: ./DSAclean <dot_file_to_be_cleaned> <out_put_file>'

	sys.exit(1)

#get a file object

input = open(sys.argv[1], 'r')

output = open(sys.argv[2], 'w')

#we'll get this one line at a time...while we could just put the whole thing in a string

#it would kill old computers

buffer = input.readline()

while buffer != '':

	if re.compile("label(\s*)=(\s*)\"\s%tmp(.\w*)*(\s*)\"").search(buffer):

		#skip next line, write neither this line nor the next

		buffer = input.readline()

	else:

		#this isn't a tmp Node, we can write it

		output.write(buffer)

	#prepare for the next iteration

	buffer = input.readline()

input.close()

output.close()