From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Subject: [PATCH v4 11/13] pretty: support padding placeholders, %< %> and %>< Date: Fri, 19 Apr 2013 09:08:50 +1000 Message-ID: <1366326532-28517-12-git-send-email-pclouds@gmail.com> References: <1366100702-31745-1-git-send-email-pclouds@gmail.com> <1366326532-28517-1-git-send-email-pclouds@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Junio C Hamano , =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= To: git@vger.kernel.org X-From: git-owner@vger.kernel.org Fri Apr 19 01:10:30 2013 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1USxyH-0008Dh-3L for gcvg-git-2@plane.gmane.org; Fri, 19 Apr 2013 01:10:29 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967285Ab3DRXKW convert rfc822-to-quoted-printable (ORCPT ); Thu, 18 Apr 2013 19:10:22 -0400 Received: from mail-da0-f41.google.com ([209.85.210.41]:39483 "EHLO mail-da0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966999Ab3DRXKV (ORCPT ); Thu, 18 Apr 2013 19:10:21 -0400 Received: by mail-da0-f41.google.com with SMTP id p8so1494587dan.28 for ; Thu, 18 Apr 2013 16:10:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references:mime-version:content-type:content-transfer-encoding; bh=8Emss/sRB33Li7jCRKGasSUIrne1X7XeAJ+eIbrjC3c=; b=SMzvRgkhI2ocK7dzFWDL627iunZcQ8N12N/rwl0JBKe0fS6SrdpcH6f2CjQlt/moid BT22Q5ngipp2lvY/+OwJkz9nB1sXd56xcuHxG0bNZLj33bTmRyQUxjYPmBsDU9zFgqps +NqJaUh2zo1xm13g8Y7rJZQtaq9IZjtrhqBV3A1d21LQs/b1nl9ABwTABzOrgVOujxOW Vkseb66xAI7DtsD8V2SqXm4KFryFEexLPr3a7GlAGfm3fij948f/182Cw1C59yPw81Tw qErrkQusl0hQRX64NEFZvxPVnRlOeQwecHWhd/0ABDrV3kS9sHwjaHlcVXdDtV3ia14R KxGQ== X-Received: by 10.66.102.33 with SMTP id fl1mr15447356pab.52.1366326620500; Thu, 18 Apr 2013 16:10:20 -0700 (PDT) Received: from pclouds@gmail.com (dektec3.lnk.telstra.net. [165.228.202.174]) by mx.google.com with ESMTPS id g8sm12389951pae.7.2013.04.18.16.10.16 (version=TLSv1 cipher=RC4-SHA bits=128/128); Thu, 18 Apr 2013 16:10:19 -0700 (PDT) Received: by pclouds@gmail.com (sSMTP sendmail emulation); Fri, 19 Apr 2013 09:10:10 +1000 X-Mailer: git-send-email 1.8.2.82.gc24b958 In-Reply-To: <1366326532-28517-1-git-send-email-pclouds@gmail.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: 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 () follows them, e.g. `%<(100)', to specify the number of columns the next placeholder takes. However, if '|' stands before (), e.g. `%>|(100)', then the number of columns is calculated so that it reaches the Nth column on screen. Signed-off-by: Nguy=E1=BB=85n Th=C3=A1i Ng=E1=BB=8Dc Duy --- Documentation/pretty-formats.txt | 8 +++ pretty.c | 117 +++++++++++++++++++++++++++++++= +++++- t/t4205-log-pretty-formats.sh | 122 +++++++++++++++++++++++++++++++= ++++++++ 3 files changed, 246 insertions(+), 1 deletion(-) diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-fo= rmats.txt index bad627a..e2345d2 100644 --- a/Documentation/pretty-formats.txt +++ b/Documentation/pretty-formats.txt @@ -164,6 +164,14 @@ The placeholders are: - '%x00': print a byte from a hex code - '%w([[,[,]]])': switch line wrapping, like the -w option = of linkgit:git-shortlog[1]. +- '%<()': make the next placeholder take at least N columns, + padding spaces on the right if necessary +- '%<|()': make the next placeholder take at least until Nth + columns, padding spaces on the right if necessary +- '%>()', '%>|()': similar to '%<()', '%<|()' + respectively, but padding spaces on the left +- '%><()', '%><|()': similar to '%<()', '%<|()' + respectively, but padding both sides (i.e. the text is centered) =20 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 3612f82..b50ebf5 100644 --- a/pretty.c +++ b/pretty.c @@ -769,16 +769,25 @@ struct chunk { size_t len; }; =20 +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; struct signature_check signature_check; + enum flush_type flush_type; char *message; char *commit_encoding; size_t width, indent1, indent2; int auto_color; + int padding; =20 /* These offsets are relative to the start of the commit message. */ struct chunk author; @@ -993,6 +1002,52 @@ static size_t parse_color(struct strbuf *sb, /* i= n UTF-8 */ return 0; } =20 +static size_t parse_padding_placeholder(struct strbuf *sb, + const char *placeholder, + struct format_commit_context *c) +{ + const char *ch =3D placeholder; + enum flush_type flush_type; + int to_column =3D 0; + + switch (*ch++) { + case '<': + flush_type =3D flush_right; + break; + case '>': + if (*ch =3D=3D '<') { + flush_type =3D flush_both; + ch++; + } else + flush_type =3D flush_left; + break; + default: + return 0; + } + + /* the next value means "wide enough to that column" */ + if (*ch =3D=3D '|') { + to_column =3D 1; + ch++; + } + + if (*ch =3D=3D '(') { + const char *start =3D ch + 1; + const char *end =3D strchr(start, ')'); + char *next; + int width; + if (!end || end =3D=3D start) + return 0; + width =3D strtoul(start, &next, 10); + if (next =3D=3D start || width =3D=3D 0) + return 0; + c->padding =3D to_column ? -width : width; + c->flush_type =3D 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) @@ -1057,6 +1112,10 @@ static size_t format_commit_one(struct strbuf *s= b, /* in UTF-8 */ return end - placeholder + 1; } else return 0; + + case '<': + case '>': + return parse_padding_placeholder(sb, placeholder, c); } =20 /* these depend on the commit */ @@ -1221,6 +1280,59 @@ static size_t format_commit_one(struct strbuf *s= b, /* in UTF-8 */ return 0; /* unknown placeholder */ } =20 +static size_t format_and_pad_commit(struct strbuf *sb, /* in UTF-8 */ + const char *placeholder, + struct format_commit_context *c) +{ + struct strbuf local_sb =3D STRBUF_INIT; + int total_consumed =3D 0, len, padding =3D c->padding; + if (padding < 0) { + const char *start =3D strrchr(sb->buf, '\n'); + int occupied; + if (!start) + start =3D sb->buf; + occupied =3D utf8_strnwidth(start, -1, 1); + padding =3D (-padding) - occupied; + } + while (1) { + int modifier =3D *placeholder =3D=3D 'C'; + int consumed =3D format_commit_one(&local_sb, placeholder, c); + total_consumed +=3D consumed; + + if (!modifier) + break; + + placeholder +=3D consumed; + if (*placeholder !=3D '%') + break; + placeholder++; + total_consumed++; + } + len =3D utf8_strnwidth(local_sb.buf, -1, 1); + if (len > padding) + strbuf_addstr(sb, local_sb.buf); + else { + int sb_len =3D sb->len, offset =3D 0; + if (c->flush_type =3D=3D flush_left) + offset =3D padding - len; + else if (c->flush_type =3D=3D flush_both) + offset =3D (padding - len) / 2; + /* + * we calculate padding in columns, now + * convert it back to chars + */ + padding =3D padding - len + local_sb.len; + strbuf_grow(sb, padding); + strbuf_setlen(sb, sb_len + padding); + memset(sb->buf + sb_len, ' ', sb->len - sb_len); + memcpy(sb->buf + sb_len + offset, local_sb.buf, + local_sb.len); + } + strbuf_release(&local_sb); + c->flush_type =3D no_flush; + return total_consumed; +} + static size_t format_commit_item(struct strbuf *sb, /* in UTF-8 */ const char *placeholder, void *context) @@ -1251,7 +1363,10 @@ static size_t format_commit_item(struct strbuf *= sb, /* in UTF-8 */ placeholder++; =20 orig_len =3D sb->len; - consumed =3D format_commit_one(sb, placeholder, context); + if (((struct format_commit_context *)context)->flush_type !=3D no_flu= sh) + consumed =3D format_and_pad_commit(sb, placeholder, context); + else + consumed =3D format_commit_one(sb, placeholder, context); if (magic =3D=3D NO_MAGIC) return consumed; =20 diff --git a/t/t4205-log-pretty-formats.sh b/t/t4205-log-pretty-formats= =2Esh index 98a43d4..88f2427 100755 --- a/t/t4205-log-pretty-formats.sh +++ b/t/t4205-log-pretty-formats.sh @@ -99,4 +99,126 @@ test_expect_failure 'NUL termination with --stat' ' test_i18ncmp expected actual ' =20 +test_expect_success 'setup more commits' ' + test_commit "message one" one one message-one && + test_commit "message two" two two message-two +' + +test_expect_success 'left alignment formatting' ' + git log --pretty=3D"format:%<(40)%s" >actual && + # complete the incomplete line at the end + echo >>actual && + qz_to_tab_space <<\EOF >expected && +message two Z +message one Z +add bar Z +initial Z +EOF + test_cmp expected actual +' + +test_expect_success 'left alignment formatting at the nth column' ' + git log --pretty=3D"format:%h %<|(40)%s" >actual && + # complete the incomplete line at the end + echo >>actual && + qz_to_tab_space <<\EOF >expected && +fa33ab1 message two Z +7cd6c63 message one Z +1711bf9 add bar Z +af20c06 initial Z +EOF + test_cmp expected actual +' + +test_expect_success 'left alignment formatting with no padding' ' + git log --pretty=3D"format:%<(1)%s" >actual && + # complete the incomplete line at the end + echo >>actual && + cat <<\EOF >expected && +message two +message one +add bar +initial +EOF + test_cmp expected actual +' + +test_expect_success 'right alignment formatting' ' + git log --pretty=3D"format:%>(40)%s" >actual && + # complete the incomplete line at the end + echo >>actual && + qz_to_tab_space <<\EOF >expected && +Z message two +Z message one +Z add bar +Z initial +EOF + test_cmp expected actual +' + +test_expect_success 'right alignment formatting at the nth column' ' + git log --pretty=3D"format:%h %>|(40)%s" >actual && + # complete the incomplete line at the end + echo >>actual && + qz_to_tab_space <<\EOF >expected && +fa33ab1 message two +7cd6c63 message one +1711bf9 add bar +af20c06 initial +EOF + test_cmp expected actual +' + +test_expect_success 'right alignment formatting with no padding' ' + git log --pretty=3D"format:%>(1)%s" >actual && + # complete the incomplete line at the end + echo >>actual && + cat <<\EOF >expected && +message two +message one +add bar +initial +EOF + test_cmp expected actual +' + +test_expect_success 'center alignment formatting' ' + git log --pretty=3D"format:%><(40)%s" >actual && + # complete the incomplete line at the end + echo >>actual && + qz_to_tab_space <<\EOF >expected && +Z message two Z +Z message one Z +Z add bar Z +Z initial Z +EOF + test_cmp expected actual +' + +test_expect_success 'center alignment formatting at the nth column' ' + git log --pretty=3D"format:%h %><|(40)%s" >actual && + # complete the incomplete line at the end + echo >>actual && + qz_to_tab_space <<\EOF >expected && +fa33ab1 message two Z +7cd6c63 message one Z +1711bf9 add bar Z +af20c06 initial Z +EOF + test_cmp expected actual +' + +test_expect_success 'center alignment formatting with no padding' ' + git log --pretty=3D"format:%><(1)%s" >actual && + # complete the incomplete line at the end + echo >>actual && + cat <<\EOF >expected && +message two +message one +add bar +initial +EOF + test_cmp expected actual +' + test_done --=20 1.8.2.82.gc24b958