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From: Eyal Soha <shawarmakarma@gmail.com>
To: peff@peff.net, git@vger.kernel.org
Cc: Eyal Soha <shawarmakarma@gmail.com>
Subject: [PATCH 1/3] color.c: Refactor color_output to use enums
Date: Fri, 10 Jan 2020 10:05:45 -0500
Message-ID: <20200110150547.221314-1-shawarmakarma@gmail.com> (raw)
In-Reply-To: <20200110111516.GA474613@coredump.intra.peff.net>

Signed-off-by: Eyal Soha <shawarmakarma@gmail.com>
---
 color.c | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/color.c b/color.c
index ebb222ec33..0549501f47 100644
--- a/color.c
+++ b/color.c
@@ -24,6 +24,13 @@ const char *column_colors_ansi[] = {
 	GIT_COLOR_RESET,
 };
 
+enum {
+	COLOR_BACKGROUND_OFFSET = 10,
+	COLOR_FOREGROUND_ANSI = 30,
+	COLOR_FOREGROUND_RGB = 38,
+	COLOR_FOREGROUND_256 = 38,
+};
+
 /* Ignore the RESET at the end when giving the size */
 const int column_colors_ansi_max = ARRAY_SIZE(column_colors_ansi) - 1;
 
@@ -92,7 +99,7 @@ static int parse_color(struct color *out, const char *name, int len)
 	for (i = 0; i < ARRAY_SIZE(color_names); i++) {
 		if (match_word(name, len, color_names[i])) {
 			out->type = COLOR_ANSI;
-			out->value = i;
+			out->value = i + COLOR_FOREGROUND_ANSI;
 			return 0;
 		}
 	}
@@ -112,7 +119,7 @@ static int parse_color(struct color *out, const char *name, int len)
 		/* Rewrite low numbers as more-portable standard colors. */
 		} else if (val < 8) {
 			out->type = COLOR_ANSI;
-			out->value = val;
+			out->value = val + COLOR_FOREGROUND_ANSI;
 			return 0;
 		} else if (val < 256) {
 			out->type = COLOR_256;
@@ -166,23 +173,22 @@ int color_parse(const char *value, char *dst)
  * already have the ANSI escape code in it. "out" should have enough
  * space in it to fit any color.
  */
-static char *color_output(char *out, int len, const struct color *c, char type)
+static char *color_output(char *out, int len, const struct color *c, int offset)
 {
 	switch (c->type) {
 	case COLOR_UNSPECIFIED:
 	case COLOR_NORMAL:
 		break;
 	case COLOR_ANSI:
-		if (len < 2)
-			BUG("color parsing ran out of space");
-		*out++ = type;
-		*out++ = '0' + c->value;
+		out += xsnprintf(out, len, "%d", c->value + offset);
 		break;
 	case COLOR_256:
-		out += xsnprintf(out, len, "%c8;5;%d", type, c->value);
+		out += xsnprintf(out, len, "%d;5;%d", COLOR_FOREGROUND_256 + offset,
+				 c->value);
 		break;
 	case COLOR_RGB:
-		out += xsnprintf(out, len, "%c8;2;%d;%d;%d", type,
+		out += xsnprintf(out, len, "%d;2;%d;%d;%d",
+				 COLOR_FOREGROUND_RGB + offset,
 				 c->red, c->green, c->blue);
 		break;
 	}
@@ -280,13 +286,13 @@ int color_parse_mem(const char *value, int value_len, char *dst)
 			if (sep++)
 				OUT(';');
 			/* foreground colors are all in the 3x range */
-			dst = color_output(dst, end - dst, &fg, '3');
+			dst = color_output(dst, end - dst, &fg, 0);
 		}
 		if (!color_empty(&bg)) {
 			if (sep++)
 				OUT(';');
 			/* background colors are all in the 4x range */
-			dst = color_output(dst, end - dst, &bg, '4');
+			dst = color_output(dst, end - dst, &bg, COLOR_BACKGROUND_OFFSET);
 		}
 		OUT('m');
 	}
-- 
2.24.1.591.g12029dc57d.dirty


  parent reply index

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CANsz78+ugmd62F4Qk+VT7Pi=ZPtMSkZjXOwLNRCFhoS9jrOkeQ@mail.gmail.com>
     [not found] ` <CANsz78K-BiswWPdhd_N25NuApcv7zSb2cw2Y9DSinkpNpuogYw@mail.gmail.com>
2020-01-07 15:36   ` Fwd: Add support for axiterm colors in parse_color Eyal Soha
2020-01-08  9:52     ` Jeff King
2020-01-10  0:20       ` Eyal Soha
2020-01-10 11:15         ` Jeff King
2020-01-10 15:02           ` Eyal Soha
2020-01-15 15:32             ` Eyal Soha
2020-01-10 15:05           ` Eyal Soha [this message]
2020-01-10 15:05             ` [PATCH 2/3] color.c: Support bright aixterm colors Eyal Soha
2020-01-15 22:42               ` Jeff King
2020-01-10 15:05             ` [PATCH 3/3] color.c: Alias RGB colors 8-15 to " Eyal Soha
2020-01-15 22:45               ` Jeff King
2020-01-15 22:33             ` [PATCH 1/3] color.c: Refactor color_output to use enums Jeff King
2020-01-16 18:01             ` Junio C Hamano
2020-01-16 18:23               ` Jeff King
2020-01-16 19:25                 ` Eyal Soha
2020-01-18 14:53                   ` Eyal Soha
2020-01-18 14:53                     ` [PATCH 2/3] color.c: Support bright aixterm colors Eyal Soha
2020-01-18 18:47                       ` Junio C Hamano
2020-01-21 16:52                         ` Eyal Soha
2020-01-21 16:56                           ` [PATCH 1/3] color.c: refactor color_output arguments Eyal Soha
2020-01-21 16:56                             ` [PATCH 2/3] color.c: support bright aixterm colors Eyal Soha
2020-01-23 22:54                               ` Junio C Hamano
2020-01-21 16:56                             ` [PATCH 3/3] color.c: alias RGB colors 8-15 to " Eyal Soha
2020-01-23 22:50                             ` [PATCH 1/3] color.c: refactor color_output arguments Junio C Hamano
2020-02-11 19:36                             ` [PATCH v3 0/3] es/bright-colors (hopefully final) reroll Junio C Hamano
2020-02-11 19:36                               ` [PATCH v3 1/3] color.c: refactor color_output arguments Junio C Hamano
2020-02-11 19:46                                 ` Jeff King
2020-02-11 23:01                                   ` Eyal Soha
2020-02-11 23:06                                     ` Junio C Hamano
2020-02-11 19:36                               ` [PATCH v3 2/3] color.c: support bright aixterm colors Junio C Hamano
2020-02-11 19:36                               ` [PATCH v3 3/3] color.c: alias RGB colors 8-15 to " Junio C Hamano
2020-01-21 17:37                           ` [PATCH 2/3] color.c: Support bright " Junio C Hamano
2020-01-18 14:53                     ` [PATCH 3/3] color.c: Alias RGB colors 8-15 to " Eyal Soha
2020-01-18 18:34                       ` Junio C Hamano
2020-01-18 17:51                     ` [PATCH 1/3] color.c: Refactor color_output to use enums Junio C Hamano
2020-01-21 16:37                       ` Eyal Soha
2020-01-21 17:49                         ` Junio C Hamano

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