return
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| + | ======Synopsis:====== | ||
| + | [[return]] \\ | ||
| + | [[return]] //<arguments>// | ||
| + | |||
| + | ======Description:====== | ||
| + | [[Return]] terminates processing of the current | ||
| + | * [[alias command|alias]] (command or function) call, | ||
| + | * [[defer]] command, | ||
| + | * [[exec command|exec]] callback, | ||
| + | * [[load]], | ||
| + | * [[on]] hook callback, | ||
| + | * [[queue]] command, | ||
| + | * [[timer]] command, | ||
| + | * [[wait|wait -cmd]] callback, | ||
| + | * [[wait|wait %proc -cmd]] callback, or | ||
| + | * {...} math operator. | ||
| + | |||
| + | You may optionally supply a return value which will be assigned to the | ||
| + | //function_return// local variable, which is useful from: | ||
| + | * The body of the {...} math operator | ||
| + | * [[on|on ?type]] handlers | ||
| + | * Any alias function call. | ||
| + | |||
| + | Using the [[return]] command outside of one of the above contexts yields | ||
| + | an error and has no effect. | ||
| + | |||
| + | ======Examples:====== | ||
| + | alias square (arg) return ${arg * arg} | ||
| + | eval echo $square(5) | ||
| + | |||
| + | will output | ||
| + | |||
| + | 25 | ||
| + | |||
| + | ======History====== | ||
| + | The [[return]] command first appeared in EPIC4pre1.031. | ||
| + | |||
return.txt ยท Last modified: 2006/08/29 20:18 (external edit)
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