Honeywell K14392V1 manual Search Rule and Regular Expressions Reference

System Administrator’s Guide

Search Rule and Regular Expressions: Reference

Table 8–6lists the special characters available for use when making rules in the Rule box. Technical users who know how to use a regular expression (RE) will benefit most from using table 8–6.Also, there are examples of extended data searches in the Rapid Eye View Software Operator Guide.

Table 8–6 Special Characters Available for a Search Rule

Character	Name	Searches for a Match of (…) Within the Rule
.	Period	Any one character.
		Ex: .ire finds “wire”, “tire”, “4ire”, and so on.
[ ]	Square	Each character in the brackets, in turn.
	brackets	Ex: c[aou]t finds “cat”, “cot” or “cut”.
^	Caret	(a) Characters that are not in brackets.
		Ex: r[^a] finds “rb”, “rc”, “rA”, “r1” and so on.
		(b) A rule at the beginning of a line.
		Ex: ^Hume finds “Hume” at the start of lines.
		(c) A control code, when used with a backslash.
		Ex. \^C finds the “control-C” control code.
$	Dollar sign	A rule at the end of a line, when placed after it.
		Ex: Kant$ finds only “Kant” at the end of lines.
-	Dash	A range of characters set in square brackets.
		Ex: [a-z] matches any lower case letter.
+	Plus sign	The character that it follows, once or more.
		Ex: tu+ finds “tu”, “tuu”, “tuuu”, and so on.
*	Asterisk	The character that it follows, whether absent, occurring once or
		more.
		Ex: mo*e finds “me”, “moe”, “mooe”, “moooe”, …
		Ex: c[au]*t finds “ct”, “cat”, “caat”, “cut”, “cuut”, …
?	Question	The character that follows the question mark, whether absent or
	mark	occurring once.
		Ex: me?y matches either “mey” or “me”.
\	Backslash	(a) Special character, when placed before it.
		Ex: \? Finds “?”;
		(b) Control character, when placed before it.
		Ex: \b finds a backspace, \e an Esc (escape), \f a form feed, \n a
		new line, \r a carriage return, \t a tab and \x0D a hexadecimal
		encoded ASCII character.

Document K14392V1 Rev A	145
07/07