47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
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from globals import *
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from Node import Node
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def findNode(node, listOfNodes):
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for i in range(len(listOfNodes)):
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if node.text == listOfNodes[i].text:
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return i
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return len(listOfNodes)
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# Each file is in the form
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# <source> <destination> <weight>
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def parse_input(filename):
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nodes = []
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links = []
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lines = open(filename, "r").readlines()
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for line in lines:
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# Parse each line and add to links array
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if (not line == "\n"): # Line isn't empty
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line_split = line.split(" ")
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currSrc = Node(text=line_split[0])
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currDest = Node(text=line_split[1])
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currSrc_index, currDest_index = (findNode(currSrc, nodes), findNode(currDest, nodes))
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appendSrc, appendDest = (False, False)
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if (currSrc_index == len(nodes)):
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appendSrc = True
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if (currDest_index == len(nodes)):
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appendDest = True
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if (appendSrc):
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nodes.append(currSrc)
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currSrc_index = len(nodes)-1
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if (appendDest):
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nodes.append(currDest)
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currDest_index = len(nodes)-1
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if (len(line_split) > 2):
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connection_description = "".join([str(x).strip() + " " for x in line_split[3::]])
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else:
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connection_description = ""
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# Append the connection to links
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links.append((nodes[currSrc_index], nodes[currDest_index], float(line_split[2]), connection_description))
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return [nodes, links]
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