Either %, % or % standing before a placeholder specifies how many
columns (at least as the placeholder can exceed it) it takes. Each
differs on how spaces are padded:
% pads on the right (aka left alignment)
% pads on the left (aka right alignment)
% pads both ways equally (aka centered)
The (N) follows them, e.g. `%(100)', to specify the number of
columns the next placeholder takes.
However, if '|' stands before (N), e.g. `%|(100)', then the number
of columns is calculated so that it reaches the Nth column on screen.
Signed-off-by: Nguyễn Thái Ngọc Duy pclo...@gmail.com
---
Documentation/pretty-formats.txt | 4 ++
pretty.c | 113 ++-
2 files changed, 116 insertions(+), 1 deletion(-)
diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt
index c706556..49d29ab 100644
--- a/Documentation/pretty-formats.txt
+++ b/Documentation/pretty-formats.txt
@@ -152,6 +152,10 @@ The placeholders are:
- '%x00': print a byte from a hex code
- '%w([w[,i1[,i2]]])': switch line wrapping, like the -w option of
linkgit:git-shortlog[1].
+- '%(N)': make the next placeholder take at least N columns, padding spaces
on the right if necessary
+- '%|(N)': make the next placeholder take at least until Nth columns,
padding spaces on the right if necessary
+- '%(N)', '%|(N)': similar to '%(N)', '%|(N)' respectively, but
padding spaces on the left
+- '%(N)', '%|(N)': similar to '%(N)', '%|(N)' respectively, but
padding both sides (i.e. the text is centered)
NOTE: Some placeholders may depend on other options given to the
revision traversal engine. For example, the `%g*` reflog options will
diff --git a/pretty.c b/pretty.c
index f3275a7..d169673 100644
--- a/pretty.c
+++ b/pretty.c
@@ -617,12 +617,20 @@ struct chunk {
size_t len;
};
+enum flush_type {
+ no_flush,
+ flush_right,
+ flush_left,
+ flush_both
+};
+
struct format_commit_context {
const struct commit *commit;
const struct pretty_print_context *pretty_ctx;
unsigned commit_header_parsed:1;
unsigned commit_message_parsed:1;
unsigned commit_signature_parsed:1;
+ enum flush_type flush_type;
struct {
char *gpg_output;
char good_bad;
@@ -631,6 +639,7 @@ struct format_commit_context {
char *message;
size_t width, indent1, indent2;
unsigned use_color;
+ int padding;
/* These offsets are relative to the start of the commit message. */
struct chunk author;
@@ -916,6 +925,52 @@ static size_t parse_color_placeholder(struct strbuf *sb,
return 0;
}
+static size_t parse_padding_placeholder(struct strbuf *sb,
+ const char *placeholder,
+ struct format_commit_context *c)
+{
+ const char *ch = placeholder;
+ enum flush_type flush_type;
+ int to_column = 0;
+
+ switch (*ch++) {
+ case '':
+ flush_type = flush_right;
+ break;
+ case '':
+ if (*ch == '') {
+ flush_type = flush_both;
+ ch++;
+ } else
+ flush_type = flush_left;
+ break;
+ default:
+ return 0;
+ }
+
+ /* the next value means wide enough to that column */
+ if (*ch == '|') {
+ to_column = 1;
+ ch++;
+ }
+
+ if (*ch == '(') {
+ const char *start = ch + 1;
+ const char *end = strchr(start, ')');
+ char *next;
+ int width;
+ if (!end || end == start)
+ return 0;
+ width = strtoul(start, next, 10);
+ if (next == start || width == 0)
+ return 0;
+ c-padding = to_column ? -width : width;
+ c-flush_type = flush_type;
+ return end - placeholder + 1;
+ }
+ return 0;
+}
+
static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
const char *placeholder,
void *context)
@@ -967,6 +1022,10 @@ static size_t format_commit_one(struct strbuf *sb, /* in
UTF-8 */
return end - placeholder + 1;
} else
return 0;
+
+ case '':
+ case '':
+ return parse_padding_placeholder(sb, placeholder, c);
}
/* these depend on the commit */
@@ -1122,6 +1181,55 @@ static size_t format_commit_one(struct strbuf *sb, /* in
UTF-8 */
return 0; /* unknown placeholder */
}
+static size_t format_and_pad_commit(struct strbuf *sb, /* in UTF-8 */
+ const char *placeholder,
+ struct format_commit_context *c)
+{
+
