Source code for PyMca5.PyMcaIO.SRSFileParser
#/*##########################################################################
#
# The PyMca X-Ray Fluorescence Toolkit
#
# Copyright (c) 2004-2014 European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
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# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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__author__ = "V.A. Sole - ESRF Data Analysis"
__contact__ = "sole@esrf.fr"
__license__ = "MIT"
__copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
import sys
import os
import numpy
from PyMca5.PyMcaIO import SpecFileAbstractClass
DEBUG = 0
[docs]class BufferedFile(object):
def __init__(self, filename):
f = open(filename, 'r')
self.__buffer = f.read()
f.close()
self.__buffer = self.__buffer.replace("\r", "\n")
self.__buffer = self.__buffer.replace("\n\n", "\n")
self.__buffer = self.__buffer.split("\n")
self.__currentLine = 0
[docs] def readline(self):
if self.__currentLine >= len(self.__buffer):
return ""
line = self.__buffer[self.__currentLine]
self.__currentLine += 1
return line
[docs] def close(self):
self.__buffer = [""]
self.__currentLine = 0
return
[docs]class SRSFileParser(object):
def __init__(self, filename, sum_all=False):
if not os.path.exists(filename):
raise IOError("File %s does not exists" % filename)
_fileObject = BufferedFile(filename)
#Only one measurement per file
header = []
header.append('#S 1 %s Unknown command' % os.path.basename(filename))
#read the data
line = _fileObject.readline()
self.motorNames = []
self.motorValues = []
readingMetaData = False
endReached = False
readingData = False
data = []
while len(line)>1:
if not readingData:
header.append(line[:-1])
if readingMetaData:
if '</MetaDataAtStart>' in line:
readingMetaData = False
elif '=' in line:
key, value = line[:-1].split('=')
if 'datestring' in key:
header.append('#D %s' % value)
elif 'scancommand' in key:
header[0] = '#S 1 %s' % value
else:
self.motorNames.append(key)
self.motorValues.append(value)
elif '<MetaDataAtStart>' in line:
readingMetaData = True
elif '&END' in line:
endReached = True
elif endReached:
if readingData:
tmpLine = line[:-1].replace("\t", " ").split(" ")
data.append([float(x) for x in tmpLine])
else:
labels = line[:-1].replace("\t", " ").split(" ")
readingData = True
else:
if DEBUG:
print("Unhandled line %s" % line[:-1])
line = _fileObject.readline()
header.append("#N %d" % len(labels))
txt = "#L "
for label in labels:
txt += " %s" % label
header.append(txt + "\n")
data = numpy.array(data)
#create an abstract scan object
self._scan = [SRSScan(data,
scantype='SCAN',
scanheader=header,
labels=labels,
motor_values=self.motorValues,
point=False)]
_fileObject = None
data = None
#the methods below are called by PyMca on any SPEC file
def __getitem__(self, item):
return self._scan[item]
[docs] def scanno(self):
"""
Gives back the number of scans in the file
"""
return len(self_scan)
[docs] def list(self):
return "1:1"
[docs] def select(self, key):
"""
key is of the from s.o
scan number, scan order
"""
n = key.split(".")
return self.__getitem__(int(n[0])-1)
[docs] def allmotors(self):
return self.motorNames
[docs]def isSRSFile(filename):
f = open(filename, mode = 'r')
try:
if '&SRS' in f.readline():
f.close()
return True
except:
pass
f.close()
return False
[docs]def test(filename):
if isSRSFile(filename):
sf=SRSFileParser(filename)
else:
print("Not a SRS File")
print(sf[0].header('S'))
print(sf[0].header('D'))
print(sf[0].alllabels())
print(sf[0].allmotors())
if __name__ == "__main__":
test(sys.argv[1])