Non-growing delimiters

[davidmjones]

[This will be considered for v2.20 if there is time.]

Many new growing delimiters were added in v2.0.1, but some were were postponed until later. (For some, it might be unclear how to make them stretchy.)

Code	Glyph	Unicode Name
U+2980	⦀	TRIPLE VERTICAL BAR DELIMITER
U+27C5	⟅	LEFT S-SHAPED BAG DELIMITER
U+27C6	⟆	RIGHT S-SHAPED BAG DELIMITER
U+27EC	⟬	MATHEMATICAL LEFT WHITE TORTOISE SHELL BRACKET
U+27ED	⟭	MATHEMATICAL RIGHT WHITE TORTOISE SHELL BRACKET
U+27EE	⟮	MATHEMATICAL LEFT FLATTENED PARENTHESIS
U+27EF	⟯	MATHEMATICAL RIGHT FLATTENED PARENTHESIS
U+2987	⦇	Z NOTATION LEFT IMAGE BRACKET
U+2988	⦈	Z NOTATION RIGHT IMAGE BRACKET
U+2989	⦉	Z NOTATION LEFT BINDING BRACKET
U+298A	⦊	Z NOTATION RIGHT BINDING BRACKET
U+298B	⦋	LEFT SQUARE BRACKET WITH UNDERBAR
U+298C	⦌	RIGHT SQUARE BRACKET WITH UNDERBAR
U+298D	⦍	LEFT SQUARE BRACKET WITH TICK IN TOP CORNER
U+298E	⦎	RIGHT SQUARE BRACKET WITH TICK IN BOTTOM CORNER
U+298F	⦏	LEFT SQUARE BRACKET WITH TICK IN BOTTOM CORNER
U+2990	⦐	RIGHT SQUARE BRACKET WITH TICK IN TOP CORNER
U+2991	⦑	LEFT ANGLE BRACKET WITH DOT;Ps;0;ON;;;;;Y;;;;;
U+2992	⦒	RIGHT ANGLE BRACKET WITH DOT;Pe;0;ON;;;;;Y;;;;;
U+2993	⦓	LEFT ARC LESS-THAN BRACKET
U+2994	⦔	RIGHT ARC GREATER-THAN BRACKET
U+2995	⦕	DOUBLE LEFT ARC GREATER-THAN BRACKET
U+2996	⦖	DOUBLE RIGHT ARC LESS-THAN BRACKET
U+2997	⦗	LEFT BLACK TORTOISE SHELL BRACKET
U+2998	⦘	RIGHT BLACK TORTOISE SHELL BRACKET
U+29D8	⧘	LEFT WIGGLY FENCE
U+29D9	⧙	RIGHT WIGGLY FENCE
U+29DA	⧚	LEFT DOUBLE WIGGLY FENCE
U+29DB	⧛	RIGHT DOUBLE WIGGLY FENCE
U+29FC	⧼	LEFT-POINTING CURVED ANGLE BRACKET
U+29FD	⧽	RIGHT-POINTING CURVED ANGLE BRACKET

The following characters are also considered delimiters in the LaTeX unicode-math package, but it's not clear how we should treat them:

Code	Glyph	Unicode Name
U+231C	⌜	TOP LEFT CORNER
U+231D	⌝	TOP RIGHT CORNER
U+231E	⌞	BOTTOM LEFT CORNER
U+231F	⌟	BOTTOM RIGHT CORNER

[tiroj]

I’ve spec’d variant height s1–s12 glyphs for the complete first set listed above. Will consider which of them might also be supported with assemblies.

I am unsure whether the corner pieces need growing forms—which might consist of the same shape at different heights corresponding to the other delimiters, or if a math handler should be able to position the individual corner pieces relative to the whole height of an equation or portion of an equation?

[tiroj]

Fixed in dev for 2.20

[tiroj]

Updated sources and fonts delivered to STI Pub for testing. Issue reopened pending public release.