Proposal to add standardized variation sequences for chess notation

Michael Everson everson at evertype.com
Mon Apr 10 05:19:24 CDT 2017


Kent,

I believe the box drawing characters are for drawing boxes and grids on computer terminals, which is not the same thing as scoring a line around a set of 64 graphic images. I don’t want to get mixed up in using the box-drawing characters. The characters which I have chosen work fine and to my mind suit the application better. 

I also don’t want to complicate chess fonts by having to have multiple choices within a font for bordering. For one thing, single-rule and double-rule bordering is by no means the gamut of possibility. Chess fonts do not have to be swiss-army knives. 

Thank you for your consideration, but I will stick with using the ⅛-block and quadrant characters. 

Michael Everson

> On 9 Apr 2017, at 18:02, Kent Karlsson <kent.karlsson14 at telia.com> wrote:
> 
> 
> Den 2017-04-06 01:25, skrev "Michael Everson" <everson at evertype.com>:
> 
> > Oh, here. This is what I would add. 
> > 
> > 2581 FE00; Chessboard box drawing; # LOWER ONE EIGHTH BLOCK
> > 258F FE00; Chessboard box drawing; # LEFT ONE EIGHTH BLOCK
> > 2594 FE00; Chessboard box drawing; # UPPER ONE EIGHTH BLOCK
> > 2595 FE00; Chessboard box drawing; # RIGHT ONE EIGHTH BLOCK
> > 2596 FE00; Chessboard box drawing; # QUADRANT LOWER LEFT
> > 2597 FE00; Chessboard box drawing; # QUADRANT LOWER RIGHT
> > 2598 FE00; Chessboard box drawing; # QUADRANT UPPER LEFT
> > 259D FE00; Chessboard box drawing; # QUADRANT UPPER RIGHT
> 
> Instead of that, I'd suggest:
> 2500 FE00; Chessboard box drawing (top); # BOX DRAWINGS LIGHT HORIZONTAL (U+2500)
> 2500 FE01; Chessboard box drawing (bottom); # BOX DRAWINGS LIGHT HORIZONTAL (U+2500)
> 2502 FE00; Chessboard box drawing (left); # BOX DRAWINGS LIGHT VERTICAL (U+2502)
> 2502 FE01; Chessboard box drawing (right); # BOX DRAWINGS LIGHT VERTICAL (U+2502)
> 250C FE00; Chessboard box drawing; # BOX DRAWINGS LIGHT DOWN AND RIGHT (U+250C)
> 2510 FE00; Chessboard box drawing; # BOX DRAWINGS LIGHT DOWN AND LEFT (U+2510)
> 2514 FE00; Chessboard box drawing; # BOX DRAWINGS LIGHT UP AND RIGHT (U+2514)
> 2518 FE00; Chessboard box drawing; # BOX DRAWINGS LIGHT UP AND LEFT (U+2518)
> 
> These are more likely to be supported (by (fixed-width) fonts) in fallback than the ones you suggest.
> They are also intended for box drawing (unlike the ones you suggest).
> 
> Perhaps also, since you exemplify also with double borders in your document:
> 2550 FE00; Chessboard box drawing (top); # BOX DRAWINGS DOUBLE HORIZONTAL (U+2550)
> 2550 FE01; Chessboard box drawing (bottom); # BOX DRAWINGS DOUBLE HORIZONTAL (U+2550)
> 2551 FE00; Chessboard box drawing (left); # BOX DRAWINGS DOUBLE VERTICAL (U+2551)
> 2551 FE01; Chessboard box drawing (right); # BOX DRAWINGS DOUBLE VERTICAL (U+2551)
> 2554 FE00; Chessboard box drawing; # BOX DRAWINGS DOUBLE DOWN AND RIGHT (U+2554)
> 2557 FE00; Chessboard box drawing; # BOX DRAWINGS DOUBLE DOWN AND LEFT (U+2557)
> 255A FE00; Chessboard box drawing; # BOX DRAWINGS DOUBLE UP AND RIGHT (U+255A)
> 255D FE00; Chessboard box drawing; # BOX DRAWINGS DOUBLE UP AND LEFT (U+255D)
> 
> /Kent K




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