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CorpusReader.py
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CorpusReader.py
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from Interpreter import Interpreter
from Tokenizer import Tokeninzer, Tokeninzer_2_1
from Indexer import Indexer
import pickle
from os.path import isfile
import os
# authors
# 80026 Daniel Martins
# 80305 João Ferreira
def log(progress, maximum):
perc = round(progress/maximum*50)
going = perc<50
print('\r ['+'='*perc+ '>'*going+'.'*(50-perc-going)+'] ',str(perc*2)+'%',end = '\r')
class CorpusReader:
def __init__(self,path,tokenizer):
self.path = path
self.tokenizer = Tokeninzer_2_1 if tokenizer else Tokeninzer
# check if there is a next Document
def processFile(self):
interpreter = Interpreter()
# return all the documents present in the file
output = self.path+'.bin'
if isfile(output):
print('loading tokens')
self.index = pickle.load(open(output,'rb'))
self.indexer = Indexer(self.tokenizer,index = self.index)
else:
self.indexer = Indexer(self.tokenizer)
file = open(self.path,'r', encoding='utf-8', errors='ignore')
maximum = os.stat(self.path).st_size
# initialize the variables
i=0
progress = 0
document = []
for line in file:
progress += len(line)
if line=='\n':
interpreter.process(self.indexer, document)
document = []
else:
document+=[line]
i+=1
if i>=5000:
i=0
log(progress, maximum)
file.close()
self.index = self.indexer.index
print('\nsaving tokens')
pickle.dump(self.index, open(output,'wb'))