[R6RS] proof-reading, part 2

[Michael Sperber]

William D Clinger <will at ccs.neu.edu> writes:

>> > Even more perplexing is the definition of char-title-case? to be true
>> > only of characters in general category Lt; that means, for example,
>> > that (char-title-case? #\A) returns #f.
>>
>> What would be a better definition?  I haven't been able to come up with
>> any alternative meaning.
>
> Here is one possible definition:
>
>   (define (char-title-case? c)
>     (and (not (char=? c (char-foldcase c)))
>          (char=? c (char-titlecase c))))

Any reason to prefer this definition over the one used by ICU and Java?

http://www.icu-project.org/apiref/icu4c/uchar_8h.html#35c14b53bb64eeb639c0f780c98aa263

I can't figure out how to make a link from the page from the Java API
docs, but if you go here:

http://java.sun.com/javase/6/docs/api/

... and then go to class Character, and from there, to isTitleCase, you
get:

isTitleCase
public static boolean isTitleCase(int codePoint)

Determines if the specified character (Unicode code point) is a
titlecase character.

A character is a titlecase character if its general category type,
provided by getType(codePoint), is TITLECASE_LETTER.

-- 
Cheers =8-} Mike
Friede, Völkerverständigung und überhaupt blabla