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#!/usr/bin/env python
from rpython.rlib.rarithmetic import intmask
from rpython.rlib.rsre import rsre_core
from rpython.rlib.rsre.rsre_char import MAXREPEAT
import os, time
# <item>\s*<title>(.*?)</title>
r_code1 = [17, 18, 1, 21, 131091, 6, 6, 60, 105, 116, 101, 109, 62, 0,
0, 0, 0, 0, 0, 19, 60, 19, 105, 19, 116, 19, 101, 19, 109, 19, 62, 29,
9, 0, MAXREPEAT, 15, 4, 9, 2, 0, 1, 19, 60, 19, 116, 19, 105, 19, 116, 19,
108, 19, 101, 19, 62, 21, 0, 31, 5, 0, MAXREPEAT, 2, 1, 21, 1, 19, 60, 19,
47, 19, 116, 19, 105, 19, 116, 19, 108, 19, 101, 19, 62, 1]
def read(filename):
fd = os.open(filename, os.O_RDONLY, 0666)
if fd < 0:
raise OSError
end = os.lseek(fd, 0, 2)
os.lseek(fd, 0, 0)
data = os.read(fd, intmask(end))
os.close(fd)
return data
def search_in_file(filename):
data = read(filename)
p = 0
while True:
res = rsre_core.search(r_code1, data, p)
if res is None:
break
matchstart, matchstop = res.span(1)
assert 0 <= matchstart <= matchstop
print '%s: %s' % (filename, data[matchstart:matchstop])
p = res.span(0)[1]
# __________ Entry point __________
def entry_point(argv):
start = time.time()
for fn in argv[1:]:
search_in_file(fn)
stop = time.time()
print stop - start
return 0
# _____ Define and setup target ___
def target(*args):
return entry_point, None
# _____ Pure Python equivalent _____
if __name__ == '__main__':
import re, sys
r = re.compile(r"<item>\s*<title>(.*?)</title>")
start = time.time()
for fn in sys.argv[1:]:
f = open(fn, 'rb')
data = f.read()
f.close()
for title in r.findall(data):
print '%s: %s' % (fn, title)
stop = time.time()
print '%.4fs' % (stop - start,)
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