Re: char-table-range

[Luc Teirlinck]

Actually, there is still something else that I find somewhat
counter-intuitive about chartables and that is the identification of
invalid characters with generic characters.  Note how in the ielm run
below, the "real" generic character for ipa, 6272, and the invalid
character 6300 seem to be treated as identical.  Is this intentional?

===File ~/new-chartable-ielm================================
*** Welcome to IELM ***  Type (describe-mode) for help.
ELISP> (put 'five-slots 'char-table-extra-slots 5)
5
ELISP> (setq cc (make-char-table 'five-slots 2))
ELISP> (make-char 'ipa)
6272
ELISP> (split-char 6320)
(ipa 48)

ELISP> (char-valid-p 6300)
nil
ELISP> (aset cc 6320 3)
3
ELISP> (aref cc 6272)
2
ELISP> (aref cc 6320)
3
ELISP> (aset cc 6300 "invalid char")
"invalid char"
ELISP> (aref cc 6272)
"invalid char"
ELISP> (aref cc 6320)
"invalid char"
ELISP> 
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