On Tue, Jun 23, 2020 at 01:20:01AM +0300, Yuri Pankov wrote:
Y> Gleb Smirnoff wrote:
Y> > Yuri, Zhihao,
Y> >
Y> > this commit totally broke Russian input for me in nvi. After
Y> > exiting edit mode, nvi immediately converts all text to ???????.
Y> >
Y> > I don't have any special settings in my environment. All I have
Y> > is "russian" class for my user which yields in these environment
Y> > variables:
Y> >
Y> > declare -x LANG="ru_RU.UTF-8"
Y> > declare -x MM_CHARSET="UTF-8"
Y> > declare -x XTERM_LOCALE="ru_RU.UTF-8"
Y> >
Y> > I'm already digging into that problem, but may be you have
Y> > a clue immediately.
Y>
Y> My bad, yes, I see the problem, looking into it.
My first attempt was this fix:
--- common/exf.c (revision 362200)
+++ common/exf.c (working copy)
@@ -1252,7 +1252,8 @@ file_encinit(SCR *sp)
else if (O_ISSET(sp, O_FILEENCODING) &&
strcasecmp(O_STR(sp, O_FILEENCODING), "utf-8") != 0)
/* Use fileencoding as is */ ;
- else if (strcasecmp(codeset(), "utf-8") != 0)
+ else if (strncasecmp(codeset() + strlen(codeset()) - 5, "utf-8", 5) !=
+ 0)
o_set(sp, O_FILEENCODING, OS_STRDUP, codeset(), 0);
else
o_set(sp, O_FILEENCODING, OS_STRDUP, "iso8859-1", 0);
But it appeared to be not the case. To my surprise, codeset()
which is wrapper around nl_langinfo() in my case returns US-ASCII.
Y> > On Sat, Jun 13, 2020 at 02:11:02PM +0000, Yuri Pankov wrote:
Y> > Y> Author: yuripv
Y> > Y> Date: Sat Jun 13 14:11:02 2020
Y> > Y> New Revision: 362148
Y> > Y> URL: https://svnweb.freebsd.org/changeset/base/362148
Y> > Y>
Y> > Y> Log:
Y> > Y> nvi: fallback to ISO8859-1 as last resort
Y> > Y>
Y> > Y> Current logic of using user's locale encoding that is UTF-8 doesn't
make
Y> > Y> much sense if we already failed the looks_utf8() check and skipped
Y> > Y> encoding set using "fileencoding" as being UTF-8 as well; fallback to
Y> > Y> ISO8859-1 in that case.
Y> > Y>
Y> > Y> Reviewed by: Zhihao Yuan <lich...@gmail.com>
Y> > Y> Differential Revision: https://reviews.freebsd.org/D24919
Y> > Y>
Y> > Y> Modified:
Y> > Y> head/contrib/nvi/common/exf.c
Y> > Y>
Y> > Y> Modified: head/contrib/nvi/common/exf.c
Y> > Y>
==============================================================================
Y> > Y> --- head/contrib/nvi/common/exf.c Sat Jun 13 09:16:07 2020
(r362147)
Y> > Y> +++ head/contrib/nvi/common/exf.c Sat Jun 13 14:11:02 2020
(r362148)
Y> > Y> @@ -1237,7 +1237,10 @@ file_encinit(SCR *sp)
Y> > Y> }
Y> > Y>
Y> > Y> /*
Y> > Y> - * Detect UTF-8 and fallback to the locale/preset encoding.
Y> > Y> + * 1. Check for valid UTF-8.
Y> > Y> + * 2. Check if fallback fileencoding is set and is NOT UTF-8.
Y> > Y> + * 3. Check if user locale's encoding is NOT UTF-8.
Y> > Y> + * 4. Use ISO8859-1 as last resort.
Y> > Y> *
Y> > Y> * XXX
Y> > Y> * A manually set O_FILEENCODING indicates the "fallback
Y> > Y> @@ -1246,9 +1249,13 @@ file_encinit(SCR *sp)
Y> > Y> */
Y> > Y> if (looks_utf8(buf, blen) > 1)
Y> > Y> o_set(sp, O_FILEENCODING, OS_STRDUP, "utf-8", 0);
Y> > Y> - else if (!O_ISSET(sp, O_FILEENCODING) ||
Y> > Y> - !strcasecmp(O_STR(sp, O_FILEENCODING), "utf-8"))
Y> > Y> + else if (O_ISSET(sp, O_FILEENCODING) &&
Y> > Y> + strcasecmp(O_STR(sp, O_FILEENCODING), "utf-8") != 0)
Y> > Y> + /* Use fileencoding as is */ ;
Y> > Y> + else if (strcasecmp(codeset(), "utf-8") != 0)
Y> > Y> o_set(sp, O_FILEENCODING, OS_STRDUP, codeset(), 0);
Y> > Y> + else
Y> > Y> + o_set(sp, O_FILEENCODING, OS_STRDUP, "iso8859-1", 0);
Y> > Y>
Y> > Y> conv_enc(sp, O_FILEENCODING, 0);
Y> > Y> #endif
--
Gleb Smirnoff
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