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authorNguyễn Thái Ngọc Duy <pclouds@gmail.com>2013-04-19 09:08:52 +1000
committerJunio C Hamano <gitster@pobox.com>2013-04-18 16:28:29 -0700
commit1640632b4f3f69775f04e9e40dfd2fd912e0f458 (patch)
tree65745a15e59b843a80d28e7402aea182a637a28a /pretty.c
parenta7f01c6b4ddf9f2f6bdcb23fc7afb56695807cba (diff)
downloadgit-1640632b4f3f69775f04e9e40dfd2fd912e0f458.tar.gz
pretty: support %>> that steal trailing spaces
This is pretty useful in `%<(100)%s%Cred%>(20)% an' where %s does not use up all 100 columns and %an needs more than 20 columns. By replacing %>(20) with %>>(20), %an can steal spaces from %s. %>> understands escape sequences, so %Cred does not stop it from stealing spaces in %<(100). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'pretty.c')
-rw-r--r--pretty.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/pretty.c b/pretty.c
index f7c6442e71..d59579a2c0 100644
--- a/pretty.c
+++ b/pretty.c
@@ -773,6 +773,7 @@ enum flush_type {
no_flush,
flush_right,
flush_left,
+ flush_left_and_steal,
flush_both
};
@@ -1026,6 +1027,9 @@ static size_t parse_padding_placeholder(struct strbuf *sb,
if (*ch == '<') {
flush_type = flush_both;
ch++;
+ } else if (*ch == '>') {
+ flush_type = flush_left_and_steal;
+ ch++;
} else
flush_type = flush_left;
break;
@@ -1334,6 +1338,36 @@ static size_t format_and_pad_commit(struct strbuf *sb, /* in UTF-8 */
total_consumed++;
}
len = utf8_strnwidth(local_sb.buf, -1, 1);
+
+ if (c->flush_type == flush_left_and_steal) {
+ const char *ch = sb->buf + sb->len - 1;
+ while (len > padding && ch > sb->buf) {
+ const char *p;
+ if (*ch == ' ') {
+ ch--;
+ padding++;
+ continue;
+ }
+ /* check for trailing ansi sequences */
+ if (*ch != 'm')
+ break;
+ p = ch - 1;
+ while (ch - p < 10 && *p != '\033')
+ p--;
+ if (*p != '\033' ||
+ ch + 1 - p != display_mode_esc_sequence_len(p))
+ break;
+ /*
+ * got a good ansi sequence, put it back to
+ * local_sb as we're cutting sb
+ */
+ strbuf_insert(&local_sb, 0, p, ch + 1 - p);
+ ch = p - 1;
+ }
+ strbuf_setlen(sb, ch + 1 - sb->buf);
+ c->flush_type = flush_left;
+ }
+
if (len > padding) {
switch (c->truncate) {
case trunc_left: