String::Glob::Permute 0.01

The string_glob_permute() function provided by the String::Glob::Permute Perl module expands glob-like notations in text strings and returns all possible permutations.<br /><br />For example, to run a script on hosts host1, host2, and host3, you might write<br /><br /> @hosts = string_glob_permute( "host[1-3]" );<br /><br />and get a list of hosts back: ("host1", "host2", "host3").<br /><br />Ranges with gaps are also supported, just separate the blocks by commas:<br /><br /> @hosts = string_glob_permute( "host[1-3,5,9]" );<br /><br />will return ("host1", "host2", "host3", "host5", "host9").<br /><br />And, finally, using curly brackets and comma-separated lists of strings, as in<br /><br /> @hosts = string_glob_permute( "host{dev,stag,prod}" );<br /><br />you'll get permutations with each of the alternatives back: ("hostdev", "hoststag", "hostprod") back.<br /><br />All of the above can be combined, so<br /><br /> my @hosts = string_glob_permute( "host{dev,stag}[3-4]" );<br /><br />will result in the permutation ("hostdev3", "hoststag3", "hostdev4", "hoststag4").<br /><br />The patterns allow numerical ranges only [1-3], no string ranges like [a-z]. Pattern must not contain blanks.<br /><br />The function returns a list of string permutations on success and undef in case of an error. A warning is also issued if the pattern cannot be recognized.<br /><br />SYNOPSIS<br /><br /> use String::Glob::Permute qw( string_glob_permute );<br /><br /> my $pattern = "host{foo,bar,baz}[2-4]";<br /><br /> for my $host (string_glob_permute( $pattern )) {<br /> print "$hostn";<br /> }<br /><br /> # hostfoo2<br /> # hostbar2<br /> # hostbaz2<br /> # hostfoo3<br /> # hostbar3<br /> # hostbaz3<br /> # hostfoo4<br /> # hostbar4<br /> # hostbaz4

Requirements:	No special requirements
Platforms:	*nix, Linux
Keyword:	Blanksthe,  Function,  Hosts,  Numerical,  Pattern,  Patterns,  Permutations,  Provided,  Quothost Quot,  Quothoststag Quotthe,  Ranges,  Returns,  String,  String Glob Permute,  Stringglobpermute,  Strings
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