no way to compare when less than two revisions

Differences

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

@@ Line 1: / Line 1: @@
+======Synopsis:======
+__while__ (<condition>) <action> \\
+__while__ (<condition>) [{ <action> }]
+======Description:======
+The __WHILE__ loop is a sort of hybrid between the [[FOR]] loop and the [[IF]]
+control statement.  It allows for repetitive action, as with [[FOR]],
+but the loop iterates (performs the action) only if a specific
+condition is met, as with [[IF]].
+The "condition" portion may contain any comparison or assignment
+allowed in an [[IF]] statement.
+======Examples:======
+To display a warning message 3 times:
+      @ xx = 3
+      while ( xx > 0 ) {
+         echo WARNING!  This ship will self destruct in $xx seconds!
+         @ xx--
+      }
+A infinite loop that behaves like the Unix 'yes' command:
+      while ( 1 ) echo yes
+======Aliases:======
+[[UNTIL]] is the exact opposite of __WHILE__.  It is essentially the same
+applying the negation operator (!) to the entire __WHILE__ condition.
+======Other Notes:======
+__WHILE__ has all of the capabilities of [[FOR]], only in a different syntax.
+The distinction between the two is not great enough to warrant a
+recommendation of one over the other.  If anything, [[FOR]] tends to be
+more concise than __WHILE__; however, this is not always the case.