On 4 April 2014 23:25, Waldek Hebisch <[email protected]> wrote:
> Bill Page wrote:
>>
>> In any case I now have a patch to the texmacs package in FriCAS that
>> does the utf-8 to Cork conversion. I have attached a draft FriCAS
>> patch, the modified fricas-input plugin and an example document (also
>> in PDF format).
>>
>
> Bill, the 'utf8' function look strange: if the string is not
> a Cork enconding of something, then it will silently produce
> garbage 0 code. If you do not want to signal errors Unicode
> has special "replacement character" which is intended be
> a marker for things which are incorrectly encoded. So
> use this character instead.
>
This function is not used in the code. I will delete it.
> Also, you use directly character codes inside the file. This
> may look nicer, but will cause build problems on some
> systems. Better use numeric codes. Also, FriCAS has
> 'ucodeToString' function to produce Unicode String from
> a single Unicode charater code. It is supposed to work
> even if underlying Lisp does not support Unicode
> (in such case it will produce multibyte string containing
> Utf-8 encoding of the character). So, use 'ucodeToString'
> and numeric codes in the table.
>
OK, I can use numeric codes in the table. Is it ok to include uft-8
characters in spad comments?
Concerning ucodeToString: I am not so clear on the purpose. Do you
mean use this function to convert to string instead of coercion? E.g.
+ cork: Character -> S
...
cork(x) ==
for i in Cork repeat
if i.unicode.1 = x then return i.corkcode
- x::String
+ ucodeToString x
utf2cork str ==
concat [cork i for i in entries str]
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