Match 2 patterns together Post: 302937161

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case

case(n) 						       Tcl Built-In Commands							   case(n)

__________________________________________________________________________________________________________________________________________________

NAME

       case - Evaluate one of several scripts, depending on a given value

SYNOPSIS

       case string ?in? patList body ?patList body ...?

       case string ?in? {patList body ?patList body ...?}
_________________________________________________________________

DESCRIPTION

       Note:  the  case  command  is  obsolete	and  is  supported only for backward compatibility.  At some point in the future it may be removed
       entirely.  You should use the switch command instead.

       The case command matches string against each of the patList arguments in order.	Each patList argument is a list of one or  more  patterns.
       If  any	of  these patterns matches string then case evaluates the following body argument by passing it recursively to the Tcl interpreter
       and returns the result of that evaluation.  Each patList argument consists of a single pattern or list of patterns.  Each pattern may  con-
       tain  any of the wild-cards described under string match.  If a patList argument is default, the corresponding body will be evaluated if no
       patList matches string.	If no patList argument matches string and no default is given, then the case command returns an empty string.

       Two syntaxes are provided for the patList and body arguments.  The first uses a separate argument for each of the  patterns  and  commands;
       this  form  is convenient if substitutions are desired on some of the patterns or commands.  The second form places all of the patterns and
       commands together into a single argument; the argument must have proper list structure, with the elements of the list  being  the  patterns
       and commands.  The second form makes it easy to construct multi-line case commands, since the braces around the whole list make it unneces-
       sary to include a backslash at the end of each line.  Since the patList arguments are in braces in the second form, no command or  variable
       substitutions are performed on them;  this makes the behavior of the second form different than the first form in some cases.

SEE ALSO

       switch(n)

KEYWORDS

       case, match, regular expression

Tcl									7.0								   case(n)

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