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#$EPIC: switch,v 1.2 2004/05/10 05:53:02 jnelson Exp $
Synopsis:
switch (<control text>) { (<switch>) { <body> } }
Description:
SWITCH is similar to C's switch statement. It allows for multiple
alternatives to a given "control" statement where more than two
possible values exist. It is functionally similar to IF except it
doesn't require excessive nesting for multiple alternatives.
Whitespace is not significant any any part of SWITCH. Braces may
appear anywhere, and multiple switches may appear on the same line
or on individual lines. No logic takes place inside the switch, only
string comparisons. For this reason, the expression parser is not
needed (nor allowed), as everything is assumed to be a string, and
variables are expanded.
Breaks and "Fall through" support, as in C, is not supported by EPIC.
If you need to perform the same command in multiple switches, it must
be present in each switch's body.
Examples:
A simple switch that checks the value of an arbitrary input:
switch ( $0 ) {
( foo ) {
<do action for "foo">
}
( bar ) ( blah ) {
<do action for "bar" or "blah">
}
( * ) {
<do action for everything else>
}
}
See Also:
if(5); fe(5); fec(5)