mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 20:23:11 +01:00
112 lines
3.3 KiB
Python
112 lines
3.3 KiB
Python
#! /usr/bin/python
|
|
|
|
#this is a script to extract given named nodes from a dot file, with
|
|
#the associated edges. An edge is kept iff for edge x -> y
|
|
# x and y are both nodes specified to be kept.
|
|
|
|
#known issues: if a line contains '->' and is not an edge line
|
|
#problems will occur. If node labels do not begin with
|
|
#Node this also will not work. Since this is designed to work
|
|
#on DSA dot output and not general dot files this is ok.
|
|
#If you want to use this on other files rename the node labels
|
|
#to Node[.*] with a script or something. This also relies on
|
|
#the length of a node name being 13 characters (as it is in all
|
|
#DSA dot output files)
|
|
|
|
#Note that the name of the node can be any substring of the actual
|
|
#name in the dot file. Thus if you say specify COLLAPSED
|
|
#as a parameter this script will pull out all COLLAPSED
|
|
#nodes in the file
|
|
|
|
#Specifying escape characters in the name like \n also will not work,
|
|
#as Python
|
|
#will make it \\n, I'm not really sure how to fix this
|
|
|
|
#currently the script prints the names it is searching for
|
|
#to STDOUT, so you can check to see if they are what you intend
|
|
|
|
import re
|
|
import string
|
|
import sys
|
|
|
|
|
|
if len(sys.argv) < 3:
|
|
print 'usage is ./DSAextract <dot_file_to_modify> \
|
|
<output_file> [list of nodes to extract]'
|
|
|
|
#open the input file
|
|
input = open(sys.argv[1], 'r')
|
|
|
|
#construct a set of node names
|
|
node_name_set = set()
|
|
for name in sys.argv[3:]:
|
|
node_name_set |= set([name])
|
|
|
|
#construct a list of compiled regular expressions from the
|
|
#node_name_set
|
|
regexp_list = []
|
|
for name in node_name_set:
|
|
regexp_list.append(re.compile(name))
|
|
|
|
#used to see what kind of line we are on
|
|
nodeexp = re.compile('Node')
|
|
#used to check to see if the current line is an edge line
|
|
arrowexp = re.compile('->')
|
|
|
|
node_set = set()
|
|
|
|
#read the file one line at a time
|
|
buffer = input.readline()
|
|
while buffer != '':
|
|
#filter out the unnecessary checks on all the edge lines
|
|
if not arrowexp.search(buffer):
|
|
#check to see if this is a node we are looking for
|
|
for regexp in regexp_list:
|
|
#if this name is for the current node, add the dot variable name
|
|
#for the node (it will be Node(hex number)) to our set of nodes
|
|
if regexp.search(buffer):
|
|
node_set |= set([re.split('\s+',buffer,2)[1]])
|
|
break
|
|
buffer = input.readline()
|
|
|
|
|
|
#test code
|
|
#print '\n'
|
|
|
|
print node_name_set
|
|
|
|
#print node_set
|
|
|
|
|
|
#open the output file
|
|
output = open(sys.argv[2], 'w')
|
|
#start the second pass over the file
|
|
input = open(sys.argv[1], 'r')
|
|
|
|
buffer = input.readline()
|
|
while buffer != '':
|
|
#there are three types of lines we are looking for
|
|
#1) node lines, 2) edge lines 3) support lines (like page size, etc)
|
|
|
|
#is this an edge line?
|
|
#note that this is no completely robust, if a none edge line
|
|
#for some reason contains -> it will be missidentified
|
|
#hand edit the file if this happens
|
|
if arrowexp.search(buffer):
|
|
#check to make sure that both nodes are in the node list
|
|
#if they are print this to output
|
|
nodes = arrowexp.split(buffer)
|
|
nodes[0] = string.strip(nodes[0])
|
|
nodes[1] = string.strip(nodes[1])
|
|
if nodes[0][:13] in node_set and \
|
|
nodes[1][:13] in node_set:
|
|
output.write(buffer)
|
|
elif nodeexp.search(buffer): #this is a node line
|
|
node = re.split('\s+', buffer,2)[1]
|
|
if node in node_set:
|
|
output.write(buffer)
|
|
else: #this is a support line
|
|
output.write(buffer)
|
|
buffer = input.readline()
|
|
|