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Top Forums UNIX for Beginners Questions & Answers Changing CSV files with date . Subtracting date by values Post 303025457 by Peasant on Friday 2nd of November 2018 03:08:21 PM
Old 11-02-2018
All the subtraction done on fields ($2,$10) depends on year on field $4, the variance defined.
If no input on $2 matches string PP<number>, $2 is printed as is, unchanged.
If no input on $10 matches string RHS, $10 is printed as is, unchanged.

Hopefully that's it :

Code:
BEGIN {
OFS=FS=";"
mweek=52
}

NR > 1 {
match($4,/P[12][0-9][0-9][0-9][0-5][0-9]/)
dw=substr($4,RSTART+1,RLENGTH-1)
year=substr(dw,1,4)
week=substr(dw,5,6)
variance=( year > 2015 ) ? 6 : 5

if ( match($10,/RHS/) ) {
	split($10,g,"_")
	u=g[1]"_"g[2]"_"int(g[3]) - variance"FF_"g[4]
	sub($10,u,$10)
	}

if ( match($2,/PP[0-9]+/) ) {
	a="PP"substr($2,RSTART+2,RLENGTH-2) - variance
	sub(substr($2,RSTART,RLENGTH),a,$2)
	}

if ( int(week) == variance ) {
	week=mweek ; year=year - 1 ; sub(dw,year week,$0)
	}
else if ( int(week) < variance ) {
	week=mweek - (variance - week) ; year=year-1 ; sub(dw,year week,$0)
	}
else {
	week=sprintf("%02d",week - variance) ; sub(dw,year week,$0)
	}
} 1

Regards
Peasant.
This User Gave Thanks to Peasant For This Post:
 

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Text::CSV::Encoded::Coder::EncodeGuess(3pm)		User Contributed Perl Documentation	       Text::CSV::Encoded::Coder::EncodeGuess(3pm)

NAME
Text::CSV::Encoded::Coder::EncodeGuess - Text::CSV::Encoded coder class using Encode::Guess SYNOPSIS
use Text::CSV::Encoded coder_class => 'Text::CSV::Encoded::Coder::EncodeGuess'; use Spreadsheet::ParseExcel; my $csv = Text::CSV::Encoded->new(); $csv->encoding( ['ucs2', 'ascii'] ); # guessing ucs2 or ascii? $csv->encoding_to_combine('shiftjis'); my $excel = Spreadsheet::ParseExcel::Workbook->Parse( $file ); my $sheet = $excel->{Worksheet}->[0]; for my $row ( $sheet->{MinRow} .. $sheet->{MaxRow} ) { my @fields; for my $col ( $sheet->{MinCol} .. $sheet->{MaxCol} ) { my $cell = $sheet->{Cells}[$row][$col]; push @fields, $cell->{Val}; } $csv->combine( @fields ) or die; print $csv->string, " "; } DESCRIPTION
This module is inherited from Text::CSV::Encoded::Coder::Encode. USE
Except for 2 attributes, same as Text::CSV::Encoded::Coder::Encode. encoding_in $csv = $csv->encoding_in( $encoding_list_ref ); The accessor to an encoding for pre-parsing CSV strings. If no encoding is given, returns current $encoding, otherwise the object itself. $encoding_list_ref = $csv->encoding_in() When you pass a list reference, it might guess the encoding from the given list. $csv->encoding_in( ['shiftjis', 'euc-jp', 'iso-20022-jp'] ); If it cannot guess the encoding, the first encoding of the list is used. encoding $csv = $csv->encoding( $encoding_list_ref ); $encoding_list_ref = $csv->encoding(); You can pass a list reference to this attribute only: * For list data consumed by combine(). * For list reference returned by getline(). In other word, in "combine" and "print", it might guess an encoding for the passing list data. If it cannot guess the encoding, the first encoding of the list is used. SEE ALSO
Encode, Encode::Guess AUTHOR
Makamaka Hannyaharamitu, <makamaka[at]cpan.org> COPYRIGHT AND LICENSE
Copyright 2008-2010 by Makamaka Hannyaharamitu This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2010-04-26 Text::CSV::Encoded::Coder::EncodeGuess(3pm)
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