|
|
|
|
: |
Longname: | : |  |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 |
Released: | not available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Created: | not available | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| See also: | { } <?{> <?}> <?:> | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Summary |
It is often desirable to re-execute certain sections of a script, for example in a loop. 3B2 provides this facility with its :label and }, { macros. |
Example extract |
The simple script below illustrates the use of labels and jump forward and jump backward macros:
|
Syntax
|
label:b
|
label:b |
The name of the label with corresponding jump name, comprising any alpha numeric combination to 31 characters pre 3B2 v7.51a.
|
|
Labels are used as targets for the jump macros. Label and jump macros in this form are only available within scripts executed with trun. They are only seen by the script processor, not the normal macro processor. The only place where this might cause confusion is in macro files executed with run. |
|
A label is any sequence of characters preceded by a : (colon) character. The label must always appear on a line of its own. |
Example |
This example illustrates the multiple combined uses of scripting loops labels and jumps in a small script that resets values of a set of variable arrays, (see also Variables).
|
Document created on 08-Feb-2003 (revision 1)
v7.51a