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Top Forums Shell Programming and Scripting Sorting based on multiple delimiters Post 302519035 by gimley on Monday 2nd of May 2011 10:51:30 PM
Old 05-02-2011
Sorting based on multiple delimiters

Hello,
I have data where words are separated by a delimiter. In this case "="
The number of delimiters in a line can vary from 4to 8. The norm is 4.
Is it possible to have a script where the file could be separated starting with highest number of delimiters and ending with the lowest
An example is given below:

INPUT
Code:
a=b=c=d=e
a=b=c=d=e=d=g=a=b
a=b=c=d=e=f
a=b=c=d=e=f=g
a=b=c=d=e=f=g=a
a=b=c=d=e=f=g=a=c
a=b=c=d=e=f=h
a=b=n=d=e=f
a=b=p=d=e
h=b=c=d=e=f=g=a

EXPECTED OUTPUT
What I would like is the following:
Code:
8 delimiters
a=b=c=d=e=d=g=a=b
a=b=c=d=e=f=g=a=c
7 delimiters
h=b=c=d=e=f=g=a
a=b=c=d=e=f=g=a
6 delimiters
a=b=c=d=e=f=g
a=b=c=d=e=f=h
5 delimiters
a=b=n=d=e=f
a=b=c=d=e=f
4 delimiters
a=b=c=d=e
a=b=p=d=e

The file is very large around 300,000 lines.
I know that a regex can do the job, but I don't know how to introduce regexes in awk or perl

Many thanks in advance


SORRY FOR MULTIPLE POSTING. MY NETWORK COLLAPSED JUST WHEN I WAS SUBMITTING THE FILE

Moderator's Comments:
Mod Comment Please use [code] and [/code] tags when posting code, data or logs etc. to preserve formatting and enhance readability. Also please refrain from writing subjects in all upper-case letters to get more attention. Thank you.

Last edited by zaxxon; 05-03-2011 at 03:31 AM.. Reason: code tags and subject
 

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Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuPerl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters(3pm)

NAME
Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters - Don't use quotes ("'", """, "`") as delimiters for the quote-like operators. AFFILIATION
This Policy is part of the core Perl::Critic distribution. DESCRIPTION
With the obvious exception of using single-quotes to prevent interpolation, using quotes with the quote-like operators kind of defeats the purpose of them and produces obfuscated code, causing problems for future maintainers and their editors/IDEs. $x = q"q"; #not ok $x = q'q'; #not ok $x = q`q`; #not ok $x = qq"q"; #not ok $x = qr"r"; #not ok $x = qw"w"; #not ok $x = qx`date`; #not ok $x =~ m"m"; #not ok $x =~ s"s"x"; #not ok $x =~ tr"t"r"; #not ok $x =~ y"x"y"; #not ok $x =~ m'$x'; #ok $x =~ s'$x'y'; #ok $x = qr'$x'm; #ok $x = qx'finger foo@bar'; #ok CONFIGURATION
This policy has three options: "single_quote_allowed_operators", "double_quote_allowed_operators", and "back_quote_allowed_operators", which control which operators are allowed to use each of "'", """, "`" as delimiters, respectively. The values allowed for these options are a whitespace delimited selection of the "m", "q", "qq", "qr", "qw", "qx", "s", "tr", and "y" operators. By default, double quotes and back quotes (backticks) are not allowed as delimiters for any operators and single quotes are allowed as delimiters for the "m", "qr", "qx", and "s" operators. These defaults are equivalent to having the following in your .perlcriticrc: [ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters] single_quote_allowed_operators = m s qr qx double_quote_allowed_operators = back_quote_allowed_operators = SUGGESTED BY
Michael Schwern AUTHOR
Elliot Shank "<perl@galumph.com>" COPYRIGHT
Copyright (c) 2007-2011 Elliot Shank. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module. perl v5.14.2 Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters(3pm)
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