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patterns [2006/08/29 16:08] (current) – created - external edit 127.0.0.1
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 +=====Pattern Matching=====
 +
 +Literally, any string is a pattern.  In general, though, a pattern is a
 +string intended to match, or be matched by, one or more other strings.  The
 +pattern will usually contain one or more wildcards, but it doesn't need to.
 +
 +The following wildcard characters are supported:
 +
 +|*   | matches zero or more characters                  |
 +|%   | matches zero or more characters, except spaces   |
 +|?   | matches exactly one character                    |
 +
 +Assuming we have a variable $foo set to "hello there":
 +
 +|hello*          | /* pattern matches */            |
 +|hello%          | /* pattern does not match */     |
 +|hello%?       | /* pattern matches */            |
 +|h?llo?th?r?     | /* pattern matches */            |
 +
 +Patterns may also contain multiple "branches" Each branch is tested when
 +a match attempt is made.  Branches are formed with the \\[ \\] construct.
 +For example:
 +
 +   \\[foo bar\\]blah                 /* matches "fooblah" and "barblah" */
 +
 +The branching construct may be used anywhere that wildcards are used,
 +including the various pattern matching functions, and in hook events.
  
patterns.txt · Last modified: 2006/08/29 16:08 by 127.0.0.1