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Markus Kuhn's UTF-8 page

Browse Source 
http://www.cl.cam.ac.uk/~mgk25/unicode.html#activate
feels strongly that it should be easy to make _all_ your
applications work in UTF-8 mode, without having to remember a switch
for each one. Every application should simply note a UTF-8 locale
setting and switch into UTF-8 mode automatically.

Therefore, for the Unix port only, there's now a checkbox, enabled
by default, which causes the drop-down Translation box to be
overridden if the locale indicates UTF-8. Anyone who doesn't like
this, or doesn't like MGK, is welcome to turn it straight back off.

I'm not _completely_ convinced by MGK's argument myself; for
xterm/pterm to do _useful_ UTF-8 you also need to specify a decently
Unicode-capable font, and there's no way _that_ can be automagically
done on noticing a locale setting. But it's a de facto standard
(i.e. xterm does it :-) so I might as well at least be _able_ to
support it.

[originally from svn r4648]
This commit is contained in:
Simon Tatham
2004-10-16 14:17:58 +00:00
parent d412fed542
commit 1b3eb3e20d
6 changed files with 44 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
unix/uxucs.c
View File

@ -106,8 +106,8 @@ int wc_to_mb(int codepage, int flags, wchar_t *wcstr, int wclen,
/*
* Return value is TRUE if pterm is to run in direct-to-font mode.
*/
int init_ucs(struct unicode_data *ucsdata,
char *linecharset, int font_charset, int vtmode)
int init_ucs(struct unicode_data *ucsdata, char *linecharset,
int utf8_override, int font_charset, int vtmode)
{
int i, ret = 0;
@ -120,10 +120,27 @@ int init_ucs(struct unicode_data *ucsdata,
ucsdata->font_codepage = -1;
/*
* line_codepage should be decoded from the specification in
* cfg.
* If utf8_override is set and the POSIX locale settings
* dictate a UTF-8 character set, then just go straight for
* UTF-8.
*/
ucsdata->line_codepage = decode_codepage(linecharset);
ucsdata->line_codepage = CS_NONE;
if (utf8_override) {
const char *s;
if (((s = getenv("LC_ALL")) && *s) ||
((s = getenv("LC_CTYPE")) && *s) ||
((s = getenv("LANG")) && *s)) {
if (strstr(s, "UTF-8"))
ucsdata->line_codepage = CS_UTF8;
}
}
/*
* Failing that, line_codepage should be decoded from the
* specification in cfg.
*/
if (ucsdata->line_codepage == CS_NONE)
ucsdata->line_codepage = decode_codepage(linecharset);
/*
* If line_codepage is _still_ CS_NONE, we assume we're using