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Merge branch 'jc/fmt-patch' into next

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* jc/fmt-patch:
  builtin format-patch: squelch content-type for 7-bit ASCII
  CMIT_FMT_EMAIL: Q-encode Subject: and display-name part of From: fields.
This commit is contained in:
Junio C Hamano 2006-05-22 18:54:10 -07:00
commit 22f7c8cc91
1 changed files with 85 additions and 7 deletions
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80
commit.c
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@ -422,6 +422,46 @@ static int get_one_line(const char *msg, unsigned long len)
return ret;
}
static int is_rfc2047_special(char ch)
{
return ((ch & 0x80) || (ch == '=') || (ch == '?') || (ch == '_'));
}
static int add_rfc2047(char *buf, const char *line, int len)
{
char *bp = buf;
int i, needquote;
static const char q_utf8[] = "=?utf-8?q?";
for (i = needquote = 0; !needquote && i < len; i++) {
unsigned ch = line[i];
if (ch & 0x80)
needquote++;
if ((i + 1 < len) &&
(ch == '=' && line[i+1] == '?'))
needquote++;
}
if (!needquote)
return sprintf(buf, "%.*s", len, line);
memcpy(bp, q_utf8, sizeof(q_utf8)-1);
bp += sizeof(q_utf8)-1;
for (i = 0; i < len; i++) {
unsigned ch = line[i];
if (is_rfc2047_special(ch)) {
sprintf(bp, "=%02X", ch);
bp += 3;
}
else if (ch == ' ')
*bp++ = '_';
else
*bp++ = ch;
}
memcpy(bp, "?=", 2);
bp += 2;
return bp - buf;
}
static int add_user_info(const char *what, enum cmit_fmt fmt, char *buf, const char *line)
{
char *date;
@ -440,12 +480,26 @@ static int add_user_info(const char *what, enum cmit_fmt fmt, char *buf, const c
tz = strtol(date, NULL, 10);
if (fmt == CMIT_FMT_EMAIL) {
what = "From";
char *name_tail = strchr(line, '<');
int display_name_length;
if (!name_tail)
return 0;
while (line < name_tail && isspace(name_tail[-1]))
name_tail--;
display_name_length = name_tail - line;
filler = "";
strcpy(buf, "From: ");
ret = strlen(buf);
ret += add_rfc2047(buf + ret, line, display_name_length);
memcpy(buf + ret, name_tail, namelen - display_name_length);
ret += namelen - display_name_length;
buf[ret++] = '\n';
}
else {
ret = sprintf(buf, "%s: %.*s%.*s\n", what,
(fmt == CMIT_FMT_FULLER) ? 4 : 0,
filler, namelen, line);
}
switch (fmt) {
case CMIT_FMT_MEDIUM:
ret += sprintf(buf + ret, "Date: %s\n", show_date(time, tz));
@ -505,10 +559,24 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit
int indent = 4;
int parents_shown = 0;
const char *msg = commit->buffer;
int plain_non_ascii = 0;
if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
indent = 0;
/* After-subject is used to pass in Content-Type: multipart
* MIME header; in that case we do not have to do the
* plaintext content type even if the commit message has
* non 7-bit ASCII character. Otherwise, check if we need
* to say this is not a 7-bit ASCII.
*/
if (fmt == CMIT_FMT_EMAIL && !after_subject) {
int i;
for (i = 0; !plain_non_ascii && msg[i] && i < len; i++)
if (msg[i] & 0x80)
plain_non_ascii = 1;
}
for (;;) {
const char *line = msg;
int linelen = get_one_line(msg, len);
@ -584,13 +652,23 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit
int slen = strlen(subject);
memcpy(buf + offset, subject, slen);
offset += slen;
offset += add_rfc2047(buf + offset, line, linelen);
}
else {
memset(buf + offset, ' ', indent);
memcpy(buf + offset + indent, line, linelen);
offset += linelen + indent;
}
buf[offset++] = '\n';
if (fmt == CMIT_FMT_ONELINE)
break;
if (subject && plain_non_ascii) {
static const char header[] =
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n";
memcpy(buf + offset, header, sizeof(header)-1);
offset += sizeof(header)-1;
}
if (after_subject) {
int slen = strlen(after_subject);
if (slen > space - offset - 1)