Reference For Searching Rules And Regular Expressions; Table 8-7 Special Characters Available For A Search Rule - Honeywell Rapid Eye Administrator's Manual

Configuring Other Hardware

Reference for Searching Rules and Regular Expressions

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Table 8-7 lists 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 8-7. Also, there are examples of extended data searches in the
Multi-Media Digital Video Recorder Remote View Operator
Table 8-7 Special Characters Available for a Search Rule
Character Name
. Period
[ ] Square brackets
^ Caret
$ Dollar sign
- Dash
+ Plus sign
* Asterisk
? Question mark
\ Backslash
Guide.
Searches for a Match of (...) Within the Rule
Any one character.
Ex: .ire finds wire, tire, 4ire, and so on.
Each character in the brackets, in turn.
Ex: c[aou]t finds cat, cot or cut.
Characters that are not in brackets.
Ex: r[^a] finds rb, rc, rA, r1 and so on.
A rule at the beginning of a line.
Ex: ^Hume finds Hume at the start of lines.
A control code, when used with a backslash.
Ex: \^C finds the control-C control code.
A rule at the end of a line, when placed after it.
Ex: Kant$ finds only Kant at the end of lines.
A range of characters set in square brackets.
Ex: [a-z] matches any lower case letter.
The character that it follows, once or more.
Ex: tu+ finds tu, tuu, tuuu, and so on.
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...
The character that follows the question mark, whether
absent or occurring once.
Ex: me?y matches either mey or me.
Special character, when placed before it.
Ex: \? Finds ?.
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.
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