Re: [spr30706] character name question

> In MCL, they have additional character names: #\UpArrow, #\DownArrow,  
> #\ForwardArrow, #\BackArrow, etc. Is there an easy way to add  
> additional character names in Allegro CL?

  As you may know, characters in Allegro CL are represented internally
using Unicode, and the names are from Unicode.  There are already some
"arrow" characters, e.g., #\up_arrowhead, but they correspond to
Unicode Graphemes which is likely not what your MCL code was
expecting.

  It seems likely that these characters represent keyboard events that
may not be directly portable from MCL.  In other words, you may be
better off just commenting them out of the code you're porting.  If,
however, you know the character codes for these characters, one hack
that you can try is to add them to Allegro's internal
name-to-char-table:

[Adding #\UpArrow as an alias to arbitrarily picked #\x]

 cl-user(46): (setf (gethash "uparrow" excl::*name-to-char-table*) #\x)
 #\x
 cl-user(47): #\UpArrow
 #\x

  Please note that this uses internal undocumented functionality, is
officially unsupported, and may change in a future release.

	Charley
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