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Shell Programming and Scripting
Find all matching words in text according to pattern
Post 302825961 by Grünspanix on Tuesday 25th of June 2013 01:36:32 PM
06-25-2013
Damn, thanks again!
This works perfectly, although in this case I initially wasn't sure why it worked. But now I realize: you use the first as anchor character "^" to define, that at the beginning of the line the following expression in '(...)' must follow. I was confused initially as the grymoire docs described the anchor to be used "on the beginning of a line" - and then I wasn't sure where the "line" was in this case. Was it the original "$line" or the splitted parts of the line? Obviously in this case every splitted part is its own "line". Thats why it works. Eventually I understood
Regarding Perl: yeah, there was the choice between perl or bash scripts and then the thought came "use something which is always available and more down-to-earth" - and the decision fell to default shell scripts.
While it is an interesting learning experience I have previously used some perl and it was way more comfortable. I am not sure the pure shellscripting decision was right after all, especially seeing that perl is installed on most unix machines anyways...sigh, but what can you do.
This works perfectly, although in this case I initially wasn't sure why it worked. But now I realize: you use the first as anchor character "^" to define, that at the beginning of the line the following expression in '(...)' must follow. I was confused initially as the grymoire docs described the anchor to be used "on the beginning of a line" - and then I wasn't sure where the "line" was in this case. Was it the original "$line" or the splitted parts of the line? Obviously in this case every splitted part is its own "line". Thats why it works. Eventually I understood
Regarding Perl: yeah, there was the choice between perl or bash scripts and then the thought came "use something which is always available and more down-to-earth" - and the decision fell to default shell scripts.
While it is an interesting learning experience I have previously used some perl and it was way more comfortable. I am not sure the pure shellscripting decision was right after all, especially seeing that perl is installed on most unix machines anyways...sigh, but what can you do.
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LEARN ABOUT DEBIAN
layout::manager::flow
Layout::Manager::Flow(3pm) User Contributed Perl Documentation Layout::Manager::Flow(3pm) NAME
Layout::Manager::Flow - Directional layout manager DESCRIPTION
Layout::Manager::Flow is a layout manager that anchors components in one of the four cardinal directions. When you instantiate a Flow manager, you may supply it with an anchor value which may be one of north, south, east or west. The example below shows how the default anchor value of north works when you add two components. north +--------------------------------+ | component 1 | +--------------------------------+ | component 2 | +--------------------------------+ | | | | | | +--------------------------------+ Components are placed in the order they are added. If two items are added with a 'north' anchor then the first item will be rendered above the second. Components will be expanded to take up all space perpendicular to their anchor. North and south will expand widths while east and west will expand heights. Flow is similar to Java's FlowLayout <http://java.sun.com/docs/books/tutorial/uiswing/layout/flow.html>. It does not, however, center components. This features may be added in the future if they are needed. SYNOPSIS
$cont->add_component($comp1); $cont->add_component($comp2); my $lm = Layout::Manager::Flow->new(anchor => 'north'); $lm->do_layout($cont); ATTRIBUTES
anchor The direction this manager is anchored. Valid values are north, south, east and west. used Returns the amount of space used an arrayref in the form of "[ $width, $height ]". wrap If set to a true value, then component will be 'wrapped' when they do not fit. This currently only works for East and West anchored layouts. METHODS
do_layout Size and position the components in this layout. AUTHOR
Cory Watson, "<gphat@cpan.org>" COPYRIGHT &; LICENSE Copyright 2008 by Cory G Watson This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.12.3 2011-05-16 Layout::Manager::Flow(3pm)