Nove: XML import

2025-12-04T22:30:05Z

XML import

Nove: XML import

2020-05-27T13:08:09Z

XML import

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'''on n goto la, lb, ..., ln:'''

This construct is an easy way of performing a goto operation
based on the result of an integer. The integer value 'n' must
be zero or positive and less than the number of labels specified
in the label-list. If n is outside this range, the on-goto operation
is skipped and execution continues at the next instruction.

Based on the value of 'n' execution continues at the label
corresponding to number 'n' in the list. I.e. if n is 0, then
execution continues at the first specified label, if n is 1
then at the second, etc. etc.

'''Example:'''

Assume you have an integer 'i' larger than zero, which takes
on 0, 1, 2, 3, 4 or 5. Based on each value you need to take a
different action, this is how you can do it:

<nowiki>

on i goto grin, laugh, grin, nada, poke, laugh;
log("Value was not in the range 0..5");
quit;

:laugh:
exec("grin", self);
goto ...;

:grin:
exec("cackle", self);
goto ...;

:blank:
exec("cry", self);
goto ...;

:poke:
exec("smirk", self);
goto ...;
</nowiki>
It is often used in this context

<nowiki>

on rnd(0,4) goto l1, l2, l3, l4, l5;

:l1:
bla;

:l2:
bla;

....

</nowiki>

---~---~---~---~---~---~---~---~---

← Older revision		Revision as of 22:30, 4 December 2025
Line 1:		Line 1:
		+	<span id="ongoto"></span>
		+	'''on <i>n</i> goto <i>la</i>, <i>lb</i>, ..., <i>ln</i>:'''

		+	This construct is an easy way of performing a goto operation
		+	based on the result of an integer. The integer value 'n' must
		+	be zero or positive and less than the number of labels specified
		+	in the label-list. If n is outside this range, the on-goto operation
		+	is skipped and execution continues at the next instruction.

		+	Based on the value of 'n' execution continues at the label
		+	corresponding to number 'n' in the list. I.e. if n is 0, then
		+	execution continues at the first specified label, if n is 1
		+	then at the second, etc. etc.
		+
		+
		+	'''Example:'''
		+
		+	Assume you have an integer 'i' larger than zero, which takes
		+	on 0, 1, 2, 3, 4 or 5. Based on each value you need to take a
		+	different action, this is how you can do it:
		+
		+	<nowiki>
		+
		+	on i goto grin, laugh, grin, nada, poke, laugh;
		+	log("Value was not in the range 0..5");
		+	quit;
		+
		+	:laugh:
		+	exec("grin", self);
		+	goto ...;
		+
		+	:grin:
		+	exec("cackle", self);
		+	goto ...;
		+
		+	:blank:
		+	exec("cry", self);
		+	goto ...;
		+
		+	:poke:
		+	exec("smirk", self);
		+	goto ...;
		+	</nowiki>
		+	It is often used in this context
		+
		+	<nowiki>
		+
		+	on rnd(0,4) goto l1, l2, l3, l4, l5;
		+
		+	:l1:
		+	bla;
		+
		+	:l2:
		+	bla;
		+
		+	....
		+
		+	</nowiki>
		+
		+	---~---~---~---~---~---~---~---~---
	<span id="ongoto"></span>		<span id="ongoto"></span>
	'''on <i>n</i> goto <i>la</i>, <i>lb</i>, ..., <i>ln</i>:'''		'''on <i>n</i> goto <i>la</i>, <i>lb</i>, ..., <i>ln</i>:'''

Manual:DIL Manual/on ... goto ... - Revision history

Nove: XML import

Nove: XML import