Differences

This shows you the differences between two versions of the page.

--- switch [2006/08/29 16:08]
+++ switch [2006/08/29 16:08] (current)
@@ Line 1: / Line 1: @@
+#$EPIC: switch.txt,v 1.2 2006/08/20 16:57:01 sthalik 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>
+         }
+      }

EPIC