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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.
-
- See Also:
- Expressions(7); match(6); on(4); pattern(6); rmatch(6); rpattern(6)
-
-