DAMASK_EICMD/processing/post/sortTable.py

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#!/usr/bin/env python
# -*- coding: UTF-8 no BOM -*-
import os,re,sys,string
import numpy as np
from optparse import OptionParser
import damask
scriptID = string.replace('$Id$','\n','\\n')
2014-12-19 00:56:52 +05:30
scriptName = os.path.splitext(scriptID.split()[1])[0]
# --------------------------------------------------------------------
# MAIN
# --------------------------------------------------------------------
parser = OptionParser(option_class=damask.extendableOption, usage='%prog options [file[s]]', description = """
Sort rows by given column label(s).
Examples:
With coordinates in columns "x", "y", and "z"; sorting with x slowest and z fastest varying index: --label x,y,z.
""", version = scriptID)
parser.add_option('-l','--label', dest='keys', action='extend', metavar='<string LIST>',
help='list of column labels (a,b,c,...)')
parser.add_option('-r','--reverse', dest='reverse', action='store_true',
help='reverse sorting')
parser.set_defaults(key = [])
parser.set_defaults(reverse = False)
(options,filenames) = parser.parse_args()
if options.keys == None:
parser.error('No sorting column(s) specified.')
options.keys.reverse() # numpy sorts with most significant column as last
# ------------------------------------------ setup file handles ---------------------------------------
files = []
if filenames == []:
files.append({'name':'STDIN', 'input':sys.stdin, 'output':sys.stdout, 'croak':sys.stderr})
else:
for name in filenames:
if os.path.exists(name):
files.append({'name':name, 'input':open(name), 'output':open(name+'_tmp','w'), 'croak':sys.stderr})
# ------------------------------------------ loop over input files ---------------------------------------
for file in files:
if file['name'] != 'STDIN': file['croak'].write('\033[1m'+scriptName+'\033[0m: '+file['name']+'\n')
else: file['croak'].write('\033[1m'+scriptName+'\033[0m\n')
table = damask.ASCIItable(file['input'],file['output'],False) # make unbuffered ASCII_table
table.head_read() # read ASCII header info
table.info_append(string.replace(scriptID,'\n','\\n') + \
'\t' + ' '.join(sys.argv[1:]))
# ------------------------------------------ assemble header ---------------------------------------
table.head_write()
# ------------------------------------------ process data ---------------------------------------
table.data_readArray()
cols = []
for column in table.labels_index(options.keys):
cols += [table.data[:,column]]
ind = np.lexsort(cols)
if options.reverse:
ind = ind[::-1]
table.data = table.data[ind]
table.data_writeArray()
# ------------------------------------------ output result ---------------------------------------
table.output_flush() # just in case of buffered ASCII table
table.input_close() # close input ASCII table
if file['name'] != 'STDIN':
table.output_close() # close output ASCII table
os.rename(file['name']+'_tmp',file['name']) # overwrite old one with tmp new