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authorGovind Salinas <govind@sophiasuchtig.com>2008-03-21 15:05:06 (GMT)
committerJunio C Hamano <gitster@pobox.com>2008-03-23 07:41:54 (GMT)
commit42c8c74c1401352b0f388e47a2c9fcd52171c9d3 (patch)
treec51b572505ef9acd9a03b38ff2d433307bd134de
parentbc6100087cfac0293e6ccbea95a24223b724d072 (diff)
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pretty.c: add %x00 format specifier.
This adds a %xXX format which inserts two hexdigits after %x as a byte value in the resulting string. This can be used to add a NUL byte or any other byte that can make machine parsing easier. It is also necessary to use fwrite to print out the data since printf will terminate if you feed it a NUL. Signed-off-by: Govind Salinas <blix@sophiasuchtig.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Documentation/pretty-formats.txt1
-rw-r--r--log-tree.c6
-rw-r--r--pretty.c11
3 files changed, 16 insertions, 2 deletions
diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt
index 0193c3c..e8bea3e 100644
--- a/Documentation/pretty-formats.txt
+++ b/Documentation/pretty-formats.txt
@@ -123,3 +123,4 @@ The placeholders are:
- '%Creset': reset color
- '%m': left, right or boundary mark
- '%n': newline
+- '%x00': print a byte from a hex code
diff --git a/log-tree.c b/log-tree.c
index 5b29639..9d54061 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -317,8 +317,10 @@ void show_log(struct rev_info *opt, const char *sep)
if (opt->show_log_size)
printf("log size %i\n", (int)msgbuf.len);
- if (msgbuf.len)
- printf("%s%s%s", msgbuf.buf, extra, sep);
+ if (msgbuf.len) {
+ fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout);
+ printf("%s%s", extra, sep);
+ }
strbuf_release(&msgbuf);
}
diff --git a/pretty.c b/pretty.c
index 16bfb86..6c04176 100644
--- a/pretty.c
+++ b/pretty.c
@@ -457,6 +457,7 @@ static size_t format_commit_item(struct strbuf *sb, const char *placeholder,
const struct commit *commit = c->commit;
const char *msg = commit->buffer;
struct commit_list *p;
+ int h1, h2;
/* these are independent of the commit */
switch (placeholder[0]) {
@@ -478,6 +479,16 @@ static size_t format_commit_item(struct strbuf *sb, const char *placeholder,
case 'n': /* newline */
strbuf_addch(sb, '\n');
return 1;
+ case 'x':
+ /* %x00 == NUL, %x0a == LF, etc. */
+ if (0 <= (h1 = hexval_table[0xff & placeholder[1]]) &&
+ h1 <= 16 &&
+ 0 <= (h2 = hexval_table[0xff & placeholder[2]]) &&
+ h2 <= 16) {
+ strbuf_addch(sb, (h1<<4)|h2);
+ return 3;
+ } else
+ return 0;
}
/* these depend on the commit */