Mercurial > hg > CbC > CbC_llvm

annotate utils/DSAextract.py @ 105:f9b011216f60

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author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Sat, 30 Jan 2016 04:31:53 +0900
parents 95c75e76d11b
children c2174574ed3a
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1 #! /usr/bin/python
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2
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3 #this is a script to extract given named nodes from a dot file, with
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4 #the associated edges. An edge is kept iff for edge x -> y
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5 # x and y are both nodes specified to be kept.
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6
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7 #known issues: if a line contains '->' and is not an edge line
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8 #problems will occur. If node labels do not begin with
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9 #Node this also will not work. Since this is designed to work
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10 #on DSA dot output and not general dot files this is ok.
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11 #If you want to use this on other files rename the node labels
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12 #to Node[.*] with a script or something. This also relies on
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13 #the length of a node name being 13 characters (as it is in all
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14 #DSA dot output files)
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15
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16 #Note that the name of the node can be any substring of the actual
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17 #name in the dot file. Thus if you say specify COLLAPSED
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18 #as a parameter this script will pull out all COLLAPSED
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19 #nodes in the file
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20
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21 #Specifying escape characters in the name like \n also will not work,
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22 #as Python
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23 #will make it \\n, I'm not really sure how to fix this
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24
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25 #currently the script prints the names it is searching for
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26 #to STDOUT, so you can check to see if they are what you intend
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27
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28 import re
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29 import string
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30 import sys
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31
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32
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33 if len(sys.argv) < 3:
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34 print 'usage is ./DSAextract <dot_file_to_modify> \
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35 <output_file> [list of nodes to extract]'
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36
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37 #open the input file
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38 input = open(sys.argv[1], 'r')
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39
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40 #construct a set of node names
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41 node_name_set = set()
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42 for name in sys.argv[3:]:
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43 node_name_set |= set([name])
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44
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45 #construct a list of compiled regular expressions from the
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46 #node_name_set
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47 regexp_list = []
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48 for name in node_name_set:
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49 regexp_list.append(re.compile(name))
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50
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51 #used to see what kind of line we are on
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52 nodeexp = re.compile('Node')
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53 #used to check to see if the current line is an edge line
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54 arrowexp = re.compile('->')
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55
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56 node_set = set()
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57
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58 #read the file one line at a time
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59 buffer = input.readline()
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60 while buffer != '':
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61 #filter out the unnecessary checks on all the edge lines
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62 if not arrowexp.search(buffer):
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63 #check to see if this is a node we are looking for
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64 for regexp in regexp_list:
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65 #if this name is for the current node, add the dot variable name
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66 #for the node (it will be Node(hex number)) to our set of nodes
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67 if regexp.search(buffer):
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68 node_set |= set([re.split('\s+',buffer,2)[1]])
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69 break
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70 buffer = input.readline()
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71
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72
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73 #test code
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74 #print '\n'
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75
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76 print node_name_set
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77
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78 #print node_set
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79
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80
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81 #open the output file
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82 output = open(sys.argv[2], 'w')
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83 #start the second pass over the file
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84 input = open(sys.argv[1], 'r')
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85
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86 buffer = input.readline()
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87 while buffer != '':
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88 #there are three types of lines we are looking for
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89 #1) node lines, 2) edge lines 3) support lines (like page size, etc)
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90
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91 #is this an edge line?
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92 #note that this is no completely robust, if a none edge line
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93 #for some reason contains -> it will be missidentified
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94 #hand edit the file if this happens
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95 if arrowexp.search(buffer):
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96 #check to make sure that both nodes are in the node list
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97 #if they are print this to output
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98 nodes = arrowexp.split(buffer)
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99 nodes[0] = string.strip(nodes[0])
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100 nodes[1] = string.strip(nodes[1])
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101 if nodes[0][:13] in node_set and \
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102 nodes[1][:13] in node_set:
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103 output.write(buffer)
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104 elif nodeexp.search(buffer): #this is a node line
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105 node = re.split('\s+', buffer,2)[1]
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106 if node in node_set:
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107 output.write(buffer)
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108 else: #this is a support line
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109 output.write(buffer)
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110 buffer = input.readline()
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111