272 lines
7.3 KiB
Python
Executable File
272 lines
7.3 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright 2014 Ville Rantanen
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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'''SC based CSV editor.'''
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__author__ = "Ville Rantanen"
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__version__ = "0.2"
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import sys,os
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import csv
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from argparse import ArgumentParser
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import unicodedata, re
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import subprocess
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import shutil
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def which(program):
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import os
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def is_exe(fpath):
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return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
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fpath, fname = os.path.split(program)
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if fpath:
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if is_exe(program):
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return program
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else:
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for path in os.environ["PATH"].split(os.pathsep):
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exe_file = os.path.join(path, program)
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if is_exe(exe_file):
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return exe_file
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return None
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class SCReader(object):
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""" Class for reading SC files.
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"""
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def __init__(self,fileobject):
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self.file=fileobject
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self.parserre=re.compile('.* ([A-Z]+)([0-9]+) = (.*)')
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def _parse_row(self,string):
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col=None
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row=None
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content=None
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m=self.parserre.match(string.strip())
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if m:
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col=self.alpha_to_column(m.group(1))
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row=self.try_int(m.group(2))
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content=m.group(3)
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return col,row,content
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def try_int(self,string):
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try:
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return int(string)
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except:
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return string
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def alpha_to_column(self,alpha):
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''' Returns a column number from spreadsheet column alphabet '''
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n=0
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o=0
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for char in alpha[::-1]:
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o+=(ord(char.upper())-64)*(26**n)
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n+=1
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return int(o-1)
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def __next__(self):
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''' Returns the next row in the table, three items: column, row, content'''
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return self._parse_row(next(self.reader))
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def __iter__(self):
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for row in self.file:
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yield self._parse_row(row)
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class SCWriter(object):
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""" Class for writing SC files.
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"""
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def __init__(self,fileobject):
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self.file=fileobject
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self.row=0
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self.col=0
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self.col_lengths=[]
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def parse_row(self,string):
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self.col=0
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for el in row:
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self.write_element(self.row,self.col,el)
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if len(self.col_lengths) <= self.col:
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self.col_lengths.append(max(len(el),8))
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else:
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self.col_lengths[self.col]=max(len(el),self.col_lengths[self.col])
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self.col+=1
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self.row+=1
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def write_element(self,row,col,content):
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colalpha=self.column_to_alpha(col)
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content=content.strip('"')
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if self.is_num(content):
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self.file.write('let '+colalpha+str(row)+' = ' + str(self.to_num(content))+'\n')
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else:
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self.file.write('rightstring '+colalpha+str(row)+' = "' + content + '"\n')
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def column_to_alpha(self,column):
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''' Returns a column alphabet from column number '''
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o=chr(column+64+1)
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if column>25:
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return self.column_to_alpha((column // 26) -1) + self.column_to_alpha(column % 26)
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return o
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def write_row(self,row):
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''' Writes a row as a SC file part '''
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self.parse_row(row)
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def write_formats(self):
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for col in range(len(self.col_lengths)):
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self.file.write('format '+self.column_to_alpha(col)+' '+str(self.col_lengths[col])+' 2 0\n')
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def is_num(self,string):
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''' returns the True if string can be converted to number safely '''
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try:
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num=int(string)
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return True
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except:
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pass
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try:
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num=float(string)
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return True
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except:
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pass
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return False
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def to_num(self,string):
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''' returns the number in the correct data type if string can be converted to number safely '''
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try:
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num=int(string)
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return num
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except:
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pass
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try:
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num=float(string)
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return num
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except:
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pass
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return string
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def setup_options():
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''' Setup the command line options '''
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parser=ArgumentParser()
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parser.add_argument("-v","--version",action='version', version=__version__)
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parser.add_argument("-b",action="store_false",dest="backup",default=True,
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help="Do not create a backup file.")
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parser.add_argument("-i",type=str,dest="delimiter",default="\t",
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help="Input delimiter for the TSV, default: [tab]")
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parser.add_argument("-D",action="store_true",dest="debug",default=False,
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help="Debug mode, i.e. do not delete the SC file.")
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parser.add_argument("tsv",type=str,action="store",
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help="TSV file to edit")
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options=parser.parse_args()
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return options
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def csv_write(screader,fileout):
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''' writes a CSV from SCReader iterator '''
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content=[]
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rows=0
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cols=0
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for row in screader:
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if row[0]!=None:
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content.append(row)
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rows=max(row[1],rows)
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cols=max(row[0],cols)
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table=[]
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for r in range(rows+1):
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table.append([])
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for c in range(cols+1):
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table[r].append('')
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for e in content:
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table[e[1]][e[0]]=e[2]
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for row in table:
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fileout.write('\t'.join(row)+'\n')
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if not which('sc'):
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print('You don\'t seem to have "sc" installed!')
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print('sudo apt-get install sc')
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sys.exit(1)
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opts=setup_options()
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f_split=os.path.split(opts.tsv)
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f_bkp=os.path.join(f_split[0],'_bkp.'+f_split[1])
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f_sc=opts.tsv+'.sc'
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f_sc_tmp=opts.tsv+'.sc.tmp'
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# copy a backup file
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if opts.backup and os.path.exists(opts.tsv):
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shutil.copyfile(opts.tsv, f_bkp)
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# create new empty file if not exist
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if not os.path.exists(opts.tsv):
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open(opts.tsv,'w').close()
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# Convert CSV -> SC
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f_sc_w=open(f_sc,'wt')
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f_csv_r=open(opts.tsv,'rt')
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csv_reader = csv.reader(f_csv_r,
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delimiter=opts.delimiter,
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doublequote=False,
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escapechar='\\',
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quoting=csv.QUOTE_NONE)
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sc_writer=SCWriter(f_sc_w)
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for row in csv_reader:
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if len(row)>0:
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sc_writer.write_row(row)
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sc_writer.write_formats()
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f_sc_w.close()
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f_csv_r.close()
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# Launch sc
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subprocess.call(['sc',f_sc])
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# Calculate values
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process = subprocess.Popen(['sc','-v','-P','%',f_sc], shell=False, stdout=subprocess.PIPE)
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f_cs_tmp_w=open(f_sc_tmp,'wt')
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for l in process.stdout.readlines():
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f_cs_tmp_w.write(l.decode('utf8'))
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f_cs_tmp_w.close()
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# Convert SC -> CSV
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print("\nWrite "+f_split[1])
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f_sc_r=open(f_sc_tmp,'rt')
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f_csv_w=open(opts.tsv,'wt')
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sc_reader=SCReader(f_sc_r)
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csv_write(sc_reader,f_csv_w)
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f_sc_r.close()
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f_csv_w.close()
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# Delete SC if not in debug mode
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if not opts.debug:
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os.remove(f_sc)
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os.remove(f_sc_tmp)
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if os.path.isfile(f_sc+'~'):
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os.remove(f_sc+'~')
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