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34 lines
918 B
Text
34 lines
918 B
Text
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local samples = [
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{"a", "b", "c"},
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"string",
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[],
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Fruit ("apple"),
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fun (){skip}
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];
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fun show () {
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-- Note: it would be much better to use iterArray from standard unit Array;
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-- in that case, however, we wouldn't be able to showcase
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-- for-loops and []-expressions.
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for local i; i := 0, i < samples.length, i := i+1 do
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printf (" %s has %d subvalue(s):\n", samples[i].string, samples[i].length);
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for local j; j := 0, j < samples[i].length, j := j+1 do
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printf (" subvalue [%d] = %s\n", j, samples[i][j].string)
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od
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od
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}
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printf ("And now we look at accessing/modifying/analyzing the values.\n");
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printf ("Any composite value can be asked on the number of its immediate subvalues,\n");
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printf ("and these subvalues can be accessed:\n");
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show ();
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printf ("And the subvalues of a composite value can be reassigned.\n");
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samples [2] := [1, 2, 3];
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samples [0][1] := {};
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show ()
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