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Use =20 when rfc2047 encoding spaces.

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Encode ' ' using '=20' even though rfc2047 allows using '_' for
readability.  Unfortunately, many programs do not understand this and
just leave the underscore in place.  Using '=20' seems to work better.

[jc: with adjustment to t3901]

Signed-off-by: Kristian Høgsberg <hoegsberg@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Kristian Høgsberg
2007-06-01 17:08:12 -04:00
committed by Junio C Hamano
parent cedb8d5d33
commit 996e2d6ea2
2 changed files with 12 additions and 8 deletions
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10
commit.c
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@ -511,12 +511,16 @@ static int add_rfc2047(char *buf, const char *line, int len,
bp += i;
for (i = 0; i < len; i++) {
unsigned ch = line[i] & 0xFF;
if (is_rfc2047_special(ch)) {
/*
* We encode ' ' using '=20' even though rfc2047
* allows using '_' for readability. Unfortunately,
* many programs do not understand this and just
* leave the underscore in place.
*/
if (is_rfc2047_special(ch) || ch == ' ') {
sprintf(bp, "=%02X", ch);
bp += 3;
}
else if (ch == ' ')
*bp++ = '_';
else
*bp++ = ch;
}