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Top Forums Shell Programming and Scripting using awk to extract text between two constant strings Post 302302236 by dunstonrocks on Monday 30th of March 2009 12:23:45 PM
Old 03-30-2009
I have a variant of the same question. I have been searching across number of threads, but it has not been covered, apparently.

Any input and explanation of the same would be helpful.
Sample Input
-------------
Record 1
Field 1: Data for field 1
Field 2: Data for field 2
Field 3: Data for field 3
Field 4: Data for field 4

Record 2
Field 1: Data for field 1
Field 2: Data for field 2
Field 4: Data for field 4

Record 3
Field 1: Data for field 1
Field 3: Data for field 3
Field 4: Data for field 4

---------------------------
Expected Output (The new inserts are in CAPS)
---------------------------
Record 1
Field 1: Data for field 1
Field 2: Data for field 2
Field 3: Data for field 3
Field 4: Data for field 4

Record 2
Field 1: Data for field 1
Field 2: Data for field 2
FIELD 3: <NULL>
Field 4: Data for field 4

Record 3
Field 1: Data for field 1
FIELD 2: <NULL>
Field 3: Data for field 3
Field 4: Data for field 4


Logic:
If (^Field) && ( (next occurence of ^Field) <> condition)
insert line as above
endif
endif
 

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Validation::Class::Field(3pm)				User Contributed Perl Documentation			     Validation::Class::Field(3pm)

NAME
Validation::Class::Field - Field Object for Validation::Class Classes VERSION
version 7.70 SYNOPSIS
package SomeClass; use Validation::Class; package main; my $class = SomeClass->new; ... my $field = $class->get_field('some_field_name'); $field->apply_filters; $field->validate; # validate this only $field->errors->count; # field-level errors 1; DESCRIPTION
Validation::Class::Field is responsible for field data handling in Validation::Class derived classes, performs functions at the field-level only. This class automatically creates attributes for all acceptable field directives as listed under "DIRECTIVES" in Validation::Class::Prototype. ATTRIBUTES
errors The errors attribute is a Validation::Class::Errors object. METHODS
new my $self = Validation::Class::Field->new({ name => 'some_field_name' }); AUTHOR
Al Newkirk <anewkirk@ana.io> COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Al Newkirk. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. perl v5.14.2 2012-06-28 Validation::Class::Field(3pm)
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