[mew-int 2868] Re: Change of emacs state when sending mail

[Harald Hanche-Olsen]

+ Harald Hanche-Olsen <hanche at example.com>:

> Evaluating the form
> 
> (unencodable-char-position 0 5 'iso-latin-1-unix 1 "100 Ω")
> 
> normally returns the list (4), since capital Omega is not encodable in
> latin-1. However, after I use mew to send email, the form begins to
> return nil instead.

I spent quite a while debugging this. The problem arises in
mew-find-cs-region (call stack: mew-charset-sanity-check ←
mew-encode-mime-body ← mew-encode-singlepart ← mew-smtp-encode-message
← mew-draft-smtp-process-message ← mew-draft-process-message).

What happens is that mew-find-cs-region runs

(apply 'set-charset-priority charset-list)

where charset-list is a humongous list (see below my signature).

Manually running

(apply 'set-charset-priority
       '(unicode-bmp unicode iso-8859-1 ascii latin-iso8859-1))

(an arbitrary list snipped from the front of the really big list)
cures the problem. Until next time I send mail, of course.

- Harald

PS. Damaging value of charset-list:

(unicode-bmp unicode iso-8859-1 ascii latin-iso8859-1 control-1
 iso-8859-2 latin-iso8859-2 iso-8859-3 latin-iso8859-3 iso-8859-4
 latin-iso8859-4 iso-8859-5 cyrillic-iso8859-5 iso-8859-6
 arabic-iso8859-6 iso-8859-7 greek-iso8859-7 iso-8859-8
 hebrew-iso8859-8 iso-8859-9 latin-iso8859-9 iso-8859-10
 latin-iso8859-10 iso-8859-11 thai-iso8859-11 iso-8859-13
 latin-iso8859-13 iso-8859-14 latin-iso8859-14 iso-8859-15
 latin-iso8859-15 iso-8859-16 latin-iso8859-16 thai-tis620 tis620-2533
 jisx0201 chinese-gb2312 chinese-gbk chinese-cns11643-1
 chinese-cns11643-2 chinese-cns11643-3 chinese-cns11643-4
 chinese-cns11643-5 chinese-cns11643-6 chinese-cns11643-7 big5
 japanese-jisx0208 japanese-jisx0208-1978 japanese-jisx0212
 japanese-jisx0213-1 japanese-jisx0213-2 japanese-jisx0213.2004-1
 cp932 korean-ksc5601 big5-hkscs cp949 viscii vscii vscii-2 koi8-r
 alternativnyj cp866 koi8-u koi8-t georgian-ps georgian-academy
 windows-1250 windows-1251 windows-1252 windows-1253 windows-1254
 windows-1255 windows-1256 windows-1257 windows-1258 next cp1125 cp437
 cp720 cp737 cp775 cp851 cp852 cp855 cp857 cp858 cp860 cp861 cp862
 cp863 cp864 cp865 cp869 cp874 unicode-smp unicode-sip unicode-ssp
 mac-roman ebcdic-us ebcdic-uk ibm1047 hp-roman8
 adobe-standard-encoding symbol ibm850 mik ptcp154 gb18030
 chinese-cns11643-15 emacs eight-bit eight-bit-control
 eight-bit-graphic latin-jisx0201 katakana-jisx0201 chinese-big5-1
 chinese-big5-2 japanese-jisx0213-a katakana-sjis cp932-2-byte
 cp949-2-byte chinese-sisheng ipa vietnamese-viscii-lower
 vietnamese-viscii-upper arabic-digit arabic-1-column arabic-2-column
 lao mule-lao indian-is13194 devanagari-cdac sanskrit-cdac
 bengali-cdac tamil-cdac telugu-cdac assamese-cdac oriya-cdac
 kannada-cdac malayalam-cdac gujarati-cdac punjabi-cdac
 devanagari-akruti bengali-akruti punjabi-akruti gujarati-akruti
 oriya-akruti tamil-akruti telugu-akruti kannada-akruti
 malayalam-akruti indian-glyph indian-1-column indian-2-column tibetan
 tibetan-1-column mule-unicode-2500-33ff mule-unicode-e000-ffff
 mule-unicode-0100-24ff ethiopic gb18030-2-byte gb18030-4-byte-bmp
 gb18030-4-byte-smp gb18030-4-byte-ext-1 gb18030-4-byte-ext-2)