I think that’s fine.

I have not been committed for a while, so now I am in the state of
being reactive commit bit mentee under George’s mentor. So I sent 
him an e-mail about rollback, but I have not heard back from him yet. 
I have been waiting for a reply mail.

I planed to roll back as soon as permission comes out from him.  
However, I think that there is no problem with your commit.
Thank you.

Best regards,
Daichi

> 2018/07/05 1:37、Hiroki Sato <h...@freebsd.org>のメール:
> 
> Hiroki Sato <h...@freebsd.org> wrote
>  in <20180703.020956.859981414196673670....@allbsd.org>:
> 
> hr> 後藤大地 <daichig...@icloud.com> wrote
> hr>   in <459bd898-8072-426e-a968-96c1382ac...@icloud.com>:
> hr>
> hr> da>
> hr> da>
> hr> da> > 2018/07/02 15:55、Hiroki Sato <h...@freebsd.org>のメール:
> hr> da> >
> hr> da> > Eitan Adler <li...@eitanadler.com> wrote
> hr> da> >  in 
> <CAF6rxg=Zjkf6EbSgt1fBQBUDHGKWwLf=n9zjwejh+di800k...@mail.gmail.com>:
> hr> da> >
> hr> da> > li> On 1 July 2018 at 10:08, Conrad Meyer <c...@freebsd.org> wrote:
> hr> da> > li> > Hi Daichi,
> hr> da> > li> >
> hr> da> > li> >
> hr> da> > li> >
> hr> da> > li> > I don't think code to decode UTF-8 belongs in top(1).  I 
> don't know
> hr> da> > li> > what the goal of this routine is, but I doubt this is the 
> right way to
> hr> da> > li> > accomplish it.
> hr> da> > li>
> hr> da> > li> For the record, I agree. This is why I didn't click "accept" on 
> the
> hr> da> > li> revision. I don't fully oppose leaving it in top(1) for now as 
> we work
> hr> da> > li> out the API, but long term its the wrong place.
> hr> da> > li>
> hr> da> > li> https://reviews.freebsd.org/D16058 is the review.
> hr> da> >
> hr> da> > I strongly object this kind of encoding-specific routine.  Please
> hr> da> > back out it.  The problem is that top(1) does not support multibyte
> hr> da> > encoding in functions for printing, and using C99 wide/multibyte
> hr> da> > character manipulation API such as iswprint(3) is the way to solve
> hr> da> > it.  Doing getenv("LANG") and assuming an encoding based on it is a
> hr> da> > very bad practice to internationalize software.
> hr> da> >
> hr> da> > -- Hiroki
> hr> da>
> hr> da> I respect what you mean.
> hr> da>
> hr> da> Once I back out, I will begin implementing it in a different way.
> hr> da> Please advise which function should be used for implementation
> hr> da> (iswprint (3) and what other functions should be used?)
> hr>
> hr>  Roughly speaking, POSIX/XPG/C99 I18N model requires the following
> hr>  steps:
> (snip)
> 
> Are you going to back out r335836, or disagree about it?
> 
> If there is no objection in the next 24 hours, I will commit the
> attached patch.  This should be a minimal change to support multibyte
> characters in ARGV array depending on LC_CTYPE, not limited to UTF-8.
> 
> -- Hiroki
> Index: usr.bin/top/display.c
> ===================================================================
> --- usr.bin/top/display.c     (revision 335957)
> +++ usr.bin/top/display.c     (working copy)
> @@ -1248,55 +1248,6 @@
>     }
> }
> 
> -/*
> - *  printable(str) - make the string pointed to by "str" into one that is
> - *   printable (i.e.: all ascii), by converting all non-printable
> - *   characters into '?'.  Replacements are done in place and a pointer
> - *   to the original buffer is returned.
> - */
> -
> -char *
> -printable(char str[])
> -{
> -     char *ptr;
> -     char ch;
> -
> -     ptr = str;
> -     if (utf8flag) {
> -             while ((ch = *ptr) != '\0') {
> -                     if (0x00 == (0x80 & ch)) {
> -                             if (!isprint(ch)) {
> -                                     *ptr = '?';
> -                             }
> -                             ++ptr;
> -                     } else if (0xC0 == (0xE0 & ch)) {
> -                             ++ptr;
> -                             if ('\0' != *ptr) ++ptr;
> -                     } else if (0xE0 == (0xF0 & ch)) {
> -                             ++ptr;
> -                             if ('\0' != *ptr) ++ptr;
> -                             if ('\0' != *ptr) ++ptr;
> -                     } else if (0xF0 == (0xF8 & ch)) {
> -                             ++ptr;
> -                             if ('\0' != *ptr) ++ptr;
> -                             if ('\0' != *ptr) ++ptr;
> -                             if ('\0' != *ptr) ++ptr;
> -                     } else {
> -                             *ptr = '?';
> -                             ++ptr;
> -                     }
> -             }
> -     } else {
> -             while ((ch = *ptr) != '\0') {
> -                     if (!isprint(ch)) {
> -                             *ptr = '?';
> -                     }
> -                     ptr++;
> -             }
> -     }
> -     return(str);
> -}
> -
> void
> i_uptime(struct timeval *bt, time_t *tod)
> {
> Index: usr.bin/top/display.h
> ===================================================================
> --- usr.bin/top/display.h     (revision 335957)
> +++ usr.bin/top/display.h     (working copy)
> @@ -11,7 +11,6 @@
> void   clear_message(void);
> int            display_resize(void);
> void   i_header(const char *text);
> -char *printable(char *string);
> void   display_header(int t);
> int            display_init(struct statics *statics);
> void   i_arc(int *stats);
> Index: usr.bin/top/machine.c
> ===================================================================
> --- usr.bin/top/machine.c     (revision 335957)
> +++ usr.bin/top/machine.c     (working copy)
> @@ -986,13 +986,8 @@
>                               if (*src == '\0')
>                                       continue;
>                               len = (argbuflen - (dst - argbuf) - 1) / 4;
> -                             if (utf8flag) {
> -                                     utf8strvisx(dst, src, MIN(strlen(src), 
> len));
> -                             } else {
> -                                     strvisx(dst, src,
> -                                         MIN(strlen(src), len),
> -                                         VIS_NL | VIS_CSTYLE);
> -                             }
> +                             strvisx(dst, src, MIN(strlen(src), len),
> +                                 VIS_NL | VIS_CSTYLE | VIS_OCTAL);
>                               while (*dst != '\0')
>                                       dst++;
>                               if ((argbuflen - (dst - argbuf) - 1) / 4 > 0)
> @@ -1089,7 +1084,7 @@
>               sbuf_printf(procbuf, "%6s ", format_time(cputime));
>               sbuf_printf(procbuf, "%6.2f%% ", ps.wcpu ? 100.0 * 
> weighted_cpu(PCTCPU(pp), pp) : 100.0 * PCTCPU(pp));
>       }
> -     sbuf_printf(procbuf, "%s", printable(cmdbuf));
> +     sbuf_printf(procbuf, "%s", cmdbuf);
>       free(cmdbuf);
>       return (sbuf_data(procbuf));
> }
> Index: usr.bin/top/top.c
> ===================================================================
> --- usr.bin/top/top.c (revision 335957)
> +++ usr.bin/top/top.c (working copy)
> @@ -24,6 +24,7 @@
> #include <errno.h>
> #include <getopt.h>
> #include <jail.h>
> +#include <locale.h>
> #include <stdbool.h>
> #include <stdio.h>
> #include <stdlib.h>
> @@ -69,7 +70,6 @@
> struct process_select ps;
> const char * myname = "top";
> pid_t mypid;
> -bool utf8flag = false;
> 
> /* pointers to display routines */
> static void (*d_loadave)(int mpid, double *avenrun) = i_loadave;
> @@ -276,6 +276,11 @@
>       }
>     }
> 
> +    if (setlocale(LC_ALL, "") == NULL) {
> +     fprintf(stderr, "%s: invalid locale.\n", myname);
> +     exit(1);
> +    }
> +
>     mypid = getpid();
> 
>     /* get our name */
> @@ -607,14 +612,6 @@
>       fputc('\n', stderr);
>     }
> 
> -     /* check if you are using UTF-8 */
> -     char *env_lang;
> -     if (NULL != (env_lang = getenv("LANG")) &&
> -             0 != strcmp(env_lang, "") &&
> -             NULL != strstr(env_lang, "UTF-8")) {
> -             utf8flag = true;
> -     }
> -
> restart:
> 
>     /*
> Index: usr.bin/top/top.h
> ===================================================================
> --- usr.bin/top/top.h (revision 335957)
> +++ usr.bin/top/top.h (working copy)
> @@ -8,7 +8,6 @@
> #define TOP_H
> 
> #include <unistd.h>
> -#include <stdbool.h>
> 
> /* Number of lines of header information on the standard screen */
> extern int Header_lines;
> @@ -38,7 +37,6 @@
> extern int pcpu_stats;
> extern int overstrike;
> extern pid_t mypid;
> -extern bool utf8flag;
> 
> extern const char * myname;
> 
> Index: usr.bin/top/utils.c
> ===================================================================
> --- usr.bin/top/utils.c       (revision 335957)
> +++ usr.bin/top/utils.c       (working copy)
> @@ -2,7 +2,6 @@
>  *  This program may be freely redistributed,
>  *  but this entire comment MUST remain intact.
>  *
> - *  Copyright (c) 2018, Daichi Goto
>  *  Copyright (c) 2018, Eitan Adler
>  *  Copyright (c) 1984, 1989, William LeFebvre, Rice University
>  *  Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
> @@ -329,61 +328,3 @@
>       kvm_close(kd);
>       return ret;
> }
> -
> -/*
> - * utf8strvisx(dst,src,src_len)
> - *   strvisx(dst,src,src_len,VIS_NL|VIS_CSTYLE) coresponding to UTF-8.
> - */
> -static const char *vis_encodes[] = {
> -     "\\0", "\\^A", "\\^B", "\\^C", "\\^D", "\\^E", "\\^F", "\\a",
> -     "\\b", "\t", "\\n", "\\v", "\\f", "\\r", "\\^N", "\\^O", "\\^P",
> -     "\\^Q", "\\^R", "\\^S", "\\^T", "\\^U", "\\^V", "\\^W", "\\^X",
> -     "\\^Y", "\\^Z", "\\^[", "\\^\\", "\\^]", "\\^^", "\\^_"
> -};
> -
> -int
> -utf8strvisx(char *dst, const char *src, size_t src_len)
> -{
> -     const signed char *src_p;
> -     char *dst_p;
> -     int i, j, olen, len;
> -
> -     src_p = src;
> -     dst_p = dst;
> -     i = olen = 0;
> -     len = (int)src_len;
> -     while (i < len) {
> -             if (0x00 == (0x80 & *src_p)) {
> -                     if (0 <= *src_p && *src_p <= 31) {
> -                             j = strlen(vis_encodes[(int)*src_p]);
> -                             strcpy(dst_p, vis_encodes[(int)*src_p]);
> -                             dst_p += j;
> -                             olen += j;
> -                     } else if (127 == *src_p) {
> -                             strcpy(dst_p, "\\^?");
> -                             olen += 3;
> -                     } else {
> -                             *dst_p++ = *src_p;
> -                             ++olen;
> -                     }
> -                     ++i;
> -                     ++src_p;
> -             } else if (0xC0 == (0xE0 & *src_p)) {
> -                     *dst_p++ = *src_p++; ++i; ++olen;
> -                     if (i < len) { *dst_p++ = *src_p++; ++i; ++olen; }
> -             } else if (0xE0 == (0xF0 & *src_p)) {
> -                     *dst_p++ = *src_p++; ++i; ++olen;
> -                     if (i < len) { *dst_p++ = *src_p++; ++i; ++olen; }
> -                     if (i < len) { *dst_p++ = *src_p++; ++i; ++olen; }
> -             } else if (0xF0 == (0xF8 & *src_p)) {
> -                     *dst_p++ = *src_p++; ++i; ++olen;
> -                     if (i < len) { *dst_p++ = *src_p++; ++i; ++olen; }
> -                     if (i < len) { *dst_p++ = *src_p++; ++i; ++olen; }
> -                     if (i < len) { *dst_p++ = *src_p++; ++i; ++olen; }
> -             } else {
> -                     *dst_p++ = '?'; ++i; ++olen;
> -             }
> -     }
> -
> -     return olen;
> -}
> Index: usr.bin/top/utils.h
> ===================================================================
> --- usr.bin/top/utils.h       (revision 335957)
> +++ usr.bin/top/utils.h       (working copy)
> @@ -22,5 +22,4 @@
> char *format_k(int64_t);
> int string_index(const char *string, const char * const *array);
> int find_pid(pid_t pid);
> -int utf8strvisx(char *, const char *, size_t);
> 

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