Programmer Guide/Command Reference/GOTO: Difference between revisions
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GOTO <var>label</var> [<var>default_label</var>] | |||
Continue macro execution at the label <var>label</var>. With the argument <var>default_label</var> a second label can be specified which is used as the target should the primary target, <code>label</code>, be undefined. | Continue macro execution at the label <var>label</var>. With the argument <var>default_label</var> a second label can be specified which is used as the target should the primary target, <code>label</code>, be undefined. | ||
Revision as of 12:18, 31 March 2011
GOTO label [default_label]
Continue macro execution at the label label. With the argument default_label a second label can be specified which is used as the target should the primary target, label, be undefined.
Often, the GOTO command is used with a variable label to implement a switch-like control structure. In this case, default_label is the name of the default switch-clause.
If both label, and default_label, are undefined, an error is generated and macro execution terminates.
