jdittmarCodeSnippets

// http://stackoverflow.com/questions/18082/validate-numbers-in-javascript-isnumeric
function isNumeric(n) { return !isNaN(parseFloat(n)) && isFinite(n);  }

jdittmarCodeSnippets

#################################################################
# subroutine to trim off the white space, carriage returns, pipes, and commas from both ends of each string or array
sub trimErroneousCharactersAtEnds {
	my $guy = shift;
	return if !defined $guy;
	my $type = (ref(\$guy) eq 'REF') ? ref($guy) : ref(\$guy);
	if ( $type eq 'ARRAY') { # Reference to an array
		foreach(@{$guy}) {  #for each element in @{$guy}
			s/\s+$//g;
			s/,+$//g;

jdittmarCodeSnippets

# line_break_check receives a file handle as its input and returns the new line character used in the file handle
sub line_break_check{
	my $file = shift;
	local $/ = \1000; # read first 1000 bytes
	local $_ = <$file>; # read
	my ($newline) = /(\015\012?)/ ? $1 : "\012"; # Default to unix.
	seek $file,0,0; # rewind to start of file
 	return $newline;
}

jdittmarCodeSnippets

# formats floating point numbers so they print nicely
sub prettyPrintNumber{
	my $number = shift;
	if(!$number){return "0.00";}
	$number = ($number < 0.001) ? sprintf('%.2e',$number) : sprintf("%.3f",$number);
	return $number;
}

jdittmarCodeSnippets

# returns true if the value passed to it is numeric, false otherwise
sub isNumeric{
	no warnings;
	use warnings FATAL => 'numeric';
	return 0 if(!defined $_[0] || $_[0] eq '' );
	return defined eval { $_[ 0] == 0 };
}

jdittmarCodeSnippets

'^[Y|y][A-Pa-p][L|R|l|r][0-9]{3}[W|w|C|c](?:-[A-Za-z])?$'

jdittmarCodeSnippets

sub does_table_exist {
	# check wether tables exists in the database
	my ($dbHandle, $tablename) = @_;
	eval { $dbHandle->do("select count(*) from $tablename where 1=0") };
	if ($dbHandle->err) {
		# Table does not exist
		#print "Table $tablename does not exist.\n";
		return 0;
	}
	else {