fix rfc2047 formatter.

Running git-format-patch on patches from Lukas destroyed
the From: line.  This fixes it.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/commit.c b/commit.c
index 0fa1198282c794b0dc9504cf5ca1432239256a05..946615d2ad5c364fe63b201aa9a9574737804c38 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -447,7 +447,7 @@ static int add_rfc2047(char *buf, const char *line, int len)
        memcpy(bp, q_utf8, sizeof(q_utf8)-1);
        bp += sizeof(q_utf8)-1;
        for (i = 0; i < len; i++) {
-               unsigned ch = line[i];
+               unsigned ch = line[i] & 0xFF;
                if (is_rfc2047_special(ch)) {
                        sprintf(bp, "=%02X", ch);
                        bp += 3;
@@ -571,10 +571,23 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit
         * 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)
+               int i, ch, in_body;
+
+               for (in_body = i = 0; (ch = msg[i]) && i < len; i++) {
+                       if (!in_body) {
+                               /* author could be non 7-bit ASCII but
+                                * the log may so; skip over the
+                                * header part first.
+                                */
+                               if (ch == '\n' &&
+                                   i + 1 < len && msg[i+1] == '\n')
+                                       in_body = 1;
+                       }
+                       else if (ch & 0x80) {
                                plain_non_ascii = 1;
+                               break;
+                       }
+               }
        }
 
        for (;;) {