MORX–5: Rearrangement underflow

The font for this test case is the same as in MORX-4. The test strings are crafted to trigger rearrangements on sequences that are shorter than the operands of the executed action. For example, rearrangement action 3 swaps the first and last glyph of the marked sequence; so we test what happens when the marked sequence contains just one glyph. If your rendering engine is correctly implemented, it should not perform rearrangements when there are not enough arguments. See also fontkit bug 143.

	3: AxD ⇒ DxA only 1 of 2+ glyphs	4: ABx ⇒ xAB only 1 of 2+ glyphs	5: ABx ⇒ xBA only 1 of 2+ glyphs	6: xCD ⇒ CDx only 1 of 2+ glyphs
Expected
Observed
Conformance

	7: xCD ⇒ DCx only 1 of 2+ glyphs	8: AxCD ⇒ CDxA only 1 of 3+ glyphs	8: AxCD ⇒ CDxA only 2 of 3+ glyphs	9: AxCD ⇒ DCxA only 1 of 3+ glyph
Expected
Observed
Conformance

	9: AxCD ⇒ DCxA only 2 of 3+ glyphs	10: ABxD ⇒ DxAB only 1 of 3+ glyph	10: ABxD ⇒ DxAB only 2 of 3+ glyphs	11: ABxD ⇒ DxBA only 1 of 3+ glyphs
Expected
Observed
Conformance

	11: ABxD ⇒ DxBA only 2 of 3+ glyphs	12: ABxCD ⇒ CDxAB only 1 of 4+ glyphs	12: ABxCD ⇒ CDxAB only 2 of 4+ glyphs	12: ABxCD ⇒ CDxAB only 3 of 4+ glyphs
Expected
Observed
Conformance

	13: ABxCD ⇒ CDxBA only 1 of 4+ glyphs	13: ABxCD ⇒ CDxBA only 2 of 4+ glyphs	13: ABxCD ⇒ CDxBA only 3 of 4+ glyphs	14: ABxCD ⇒ DCxAB only 1 of 4+ glyphs
Expected
Observed
Conformance

	14: ABxCD ⇒ DCxAB only 2 of 4+ glyphs	14: ABxCD ⇒ DCxAB only 3 of 4+ glyphs	15: ABxCD ⇒ DCxBA only 1 of 4+ glyphs	15: ABxCD ⇒ DCxBA only 2 of 4+ glyphs
Expected
Observed
Conformance

	15: ABxCD ⇒ DCxBA only 3 of 4+ glyphs
Expected
Observed
Conformance