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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Find pairs of observations from the same pattern
#
# Copyright © 2014-2020 Deutsches Elektronen-Synchrotron DESY,
# a research centre of the Helmholtz Association.
#
# Author:
# 2014-2017 Thomas White <taw@physics.org>
#
import re as regexp
fn1 = "test-0.5.0-satfix.stream"
fn2 = "test-curr.stream"
def find_405(f):
lines = dict()
fn = ""
prog = regexp.compile("^\s+([\d-]+)\s+([\d-]+)\s+([\d-]+)\s+")
while True:
fline = f.readline()
if not fline:
break
if fline.find("Image filename: ") != -1:
fn = fline.split(': ')[1].rstrip("\r\n")
continue
match = prog.match(fline)
if not match:
continue
h = int(match.group(1))
k = int(match.group(2))
l = int(match.group(3))
if (h==0) and (k==0) and (l==6):
lines[fn] = fline
if (h==0) and (k==0) and (l==-6):
lines[fn] = fline
return lines
f = open(fn1, 'r')
flines = find_405(f)
print("{} measurements in {}".format(len(flines),fn1))
g = open(fn2, 'r')
glines = find_405(g)
print("{} measurements in {}".format(len(glines),fn2))
print("\nThe common measurements:\n")
for fn in flines.keys():
if fn in glines:
print(fn)
print(flines[fn].rstrip("\r\n"))
print(glines[fn])
print()
del flines[fn]
del glines[fn]
print("\nThe measurements only in {}:\n".format(fn1))
for fn in flines.keys():
print(fn)
print(flines[fn].rstrip("\r\n"))
print()
print("\nThe measurements only in {}:\n".format(fn2))
for fn in glines.keys():
print(fn)
print(glines[fn].rstrip("\r\n"))
print("")
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