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Discussion Boards This feature is more fully explained through the following topics. • ”Using Regular Expressions” on page 506 • ”Adding a Replacement Word” on page 507 • ”Viewing Existing Replacement Words” on page 508 • ”Editing a Replacement Word” on page 508 • ”Deleting a Replacement Word” on page 508 Using Regular Expressions If you would like the Replace Words feature to modify words that contain a word you do not want used, you can use Regular Expressions. A Regular Expression, often referred to as regex, is a pattern of metacharaters placed around a word that describes a string. Used for string manipulation, regex allows you to detail a succinct description of a group of words without having to detail each word in the group. Regular Expression Description . Matches any character, similar to a wildcard. For example, .ar matches any three letter word ending in ar, such as car, bar, tar or far. | Acts as an or operator. For example, steak|stake would find steak or stake. [] Matches one character that is between the brackets. For example, [rst] matches r, s or t. [d-g] matches d, e, f, or g. Another example, [bc]ar matches bar and car. If you need to match a dash (-), use it a the beginning or end of the group. For example, [xyz-] or [-xyz]. [^ ] Matches one character that is not in the group. For example, [^rst] matches any character other than r, s or t. Another example, [^bc]ar does not match bar or car, but does match words, such as tar or far. ^ Matches the beginning of any line. For example, ^[bc]ar matches bar or car, but only at the beginning of a line. $ Matches the end of any line. For example, ^[bc]ar matches bar or car, but only when it appears at the end of a line. Ektron CMS40 0.NET Admini strator Manua l, Version 7 .6 Re v 12 506
