[tex-live] TL expl3 update broke a mwe for me

[Ingo Krabbe]

Ah, no, I get the same error. But what is latin9 luainputenc anyway?

It seems to be broken. Do you really need latin-X?

Convert all your source files to utf8 (with iconv for example) and leave the bad old codepages for people who still run windows 95 or whatever.

regards

ingo


>> ! Undefined control sequence.
>> <argument> ...or: for example, they allow "MASSE" and "Maß
>>                                                   e" to match. 
>> l.4195   \__unicode_map_inline:n { CaseFolding.txt }
> 
> This looks like an encoding error.  It would help if you copy and paste the strange output into od or xxd for example.
> 
> Your non ascii sequence seems to be C3 83 C2 9F, which appears as a double UTF-8 encoding or something similar. Either the encoding of your mail, the encoding of your system or the encoding of the CaseFolding.txt file is bad, I would bet.
> 
> With your numbers above, written in binary form you have:
> 
> 	11000011 10000011
> 
> and
> 
> 	11000010 10011111
> 
> that are quickly calculated into ascii / unicode numbers through the guessed utf-8 encoding
> 
>           01.   x in [000000.00000000.0bbbbbbb] → 0bbbbbbb
>           10.   x in [000000.00000bbb.bbbbbbbb] → 110bbbbb, 10bbbbbb
>           11.   x in [000000.bbbbbbbb.bbbbbbbb] → 1110bbbb, 10bbbbbb, 10bbbbbb
>           100. x in [bbbbbb.bbbbbbbb.bbbbbbbb] → 1110bbbb, 10bbbbbb, 10bbbbbb, 10bbbbbb
> 
> where we just need the 2nd (10) rule, here.
> 
> 	decode_utf8(11000011 10000011) = 000 1100 0011
> 	decode_utf8(11000010 10011111) = 000 1001 1111
> 
> This again is a UTF-8 sequence (guessed again).
> 
> 	decode_utf8(11000011 10011111) = 1101 1111 = DF
> 
> 	unicode DF = ß	(latin small letter sharp s)
> 
> So "Masse and Maße" match.
> 
> First shot: What is your system encoding. Most systems now use UTF-8 encodings. Check your locale, by just typing locale. This is an output for my system:
> 
> 	# locale
> 	LANG=en_US.UTF-8
> 	LC_CTYPE=de_DE.UTF-8
> 	LC_NUMERIC=de_DE.UTF-8
> 	LC_TIME=de_DE.UTF-8
> 	LC_COLLATE=de_DE.UTF-8
> 	LC_MONETARY=de_DE.UTF-8
> 	LC_MESSAGES="en_US.UTF-8"
> 	LC_PAPER="en_US.UTF-8"
> 	LC_NAME="en_US.UTF-8"
> 	LC_ADDRESS="en_US.UTF-8"
> 	LC_TELEPHONE="en_US.UTF-8"
> 	LC_MEASUREMENT="en_US.UTF-8"
> 	LC_IDENTIFICATION="en_US.UTF-8"
> 	LC_ALL=
> 
> Try your example with a utf8 system encoding.
> 
> regards
> 
> ingo