From: arisawa@ar.aichi-u.ac.jp
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] tcs bug
Date: Wed, 31 Aug 2005 18:11:49 +0900 [thread overview]
Message-ID: <37F6EFDF-3C9E-48F9-A03F-6ED617BA6166@ar.aichi-u.ac.jp> (raw)
In-Reply-To: <9D17C8E2-2DE4-4E34-A95B-59A6232B132D@ar.aichi-u.ac.jp>
The bellow is a first-aid bug fix
we define read function for utf-8
/* read until utf boundary */
int
readu(int fd, char *buf, int n)
{
static char b[3];
static int nb;
int m;
char *s, *e;
if(nb)
memcpy(buf, b, nb);
m = read(fd, buf + nb, n - nb);
/*
01. x in [00000000.0bbbbbbb] → 0bbbbbbb
10. x in [00000bbb.bbbbbbbb] → 110bbbbb, 10bbbbbb
11. x in [bbbbbbbb.bbbbbbbb] → 1110bbbb, 10bbbbbb,10bbbbbb
*/
e = buf + m + nb;
for(s = buf; s < e; s++){
if((*s & 0x80) == 0)
continue;
if((*s & 0xe0) == 0xd0){
s++;
continue;
}
/* then *s is 111bbbbb */
if(s+2 >= e)
break;
s += 2;
continue;
}
/* we have e - s bytes in s */
nb = e - s;
memcpy(b, s, nb);
return s - buf;
}
and replace 'read' by 'readu' in utf.c
utf_in(int fd, long *notused, struct convert *out)
{
...
while((n = readu(fd, buf+tot, N-tot)) >= 0){
...
}
Kenji Arisawa
next prev parent reply other threads:[~2005-08-31 9:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-31 6:07 arisawa
2005-08-31 9:11 ` arisawa [this message]
2005-08-31 9:17 ` Rob Pike
2005-08-31 10:48 ` arisawa
2005-08-31 11:22 ` arisawa
-- strict thread matches above, loose matches on Subject: below --
2005-09-01 0:36 quanstro
2005-08-31 10:51 quanstro
2005-08-31 21:36 ` Russ Cox
2005-08-29 23:23 [9fans] some Plan9 related ideas Bhanu Nagendra Pisupati
2005-08-30 17:07 ` [9fans] " Dave Eckhardt
2005-08-30 17:33 ` Francisco Ballesteros
2005-08-30 17:46 ` Russ Cox
2005-08-31 5:54 ` [9fans] tcs bug arisawa
2005-08-31 5:57 ` Rob Pike
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