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[PATCH] pretty.c: add %z specifier.

From
GSGovind Salinas <govind@sophiasuchtig.com>
Date
Mar 21, 2008, 00:45 UTC
Message-ID
<5d46db230803201745mb736e98w4925e14b5d92d71d@mail.gmail.com>

This adds a %z format which prints out a null character. This allows for easier machine parsing of multiline data. It is also necessary to use write to print out the data since printf will terminate at a null. That in turn requires that an fflush be executed before the write to preserve the order the data is printed.

Signed-off-by: Govind Salinas <blix@sophiasuchtig.com>
---
 log-tree.c |    7 +++++--
 pretty.c   |    3 +++
 2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/log-tree.c b/log-tree.c
index 608f697..e116a1f 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -308,8 +308,11 @@ 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) {
+		fflush(stdout);
+		write(STDOUT_FILENO, msgbuf.buf, msgbuf.len);
+		printf("%s%s", extra, sep);
+	}
 	strbuf_release(&msgbuf);
 }

diff --git a/pretty.c b/pretty.c
index 703f521..fd155ec 100644
--- a/pretty.c
+++ b/pretty.c
@@ -478,6 +478,9 @@ static size_t format_commit_item(struct strbuf
*sb, const char *placeholder,
 	case 'n':		/* newline */
 		strbuf_addch(sb, '\n');
 		return 1;
+	case 'z':		/* null */
+		strbuf_addch(sb, '\0');
+		return 1;
 	}

 	/* these depend on the commit */
-- 
1.5.4.4.552.g9987b
Next: Jeff King
Message 1 of 8 in “pretty.c: add %z specifier.”
  1. pretty.c: add %z specifier.Govind Salinas, Mar 21, 2008
  2. Jeff KingMar 21, 2008
  3. Junio C HamanoMar 21, 2008
  4. Jeff KingMar 21, 2008
  5. Junio C HamanoMar 21, 2008
  6. Govind SalinasMar 21, 2008
  7. David SymondsMar 21, 2008
  8. Junio C HamanoMar 21, 2008

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