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authorJunio C Hamano <gitster@pobox.com>2010-03-24 23:24:13 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-03-24 23:24:13 (GMT)
commit0476228de500049804ae599f557658c3f9042ad0 (patch)
tree4c9185465412afb414bdfb5688f1f804ba3d9fc4
parentbcbbe4f9d9afa025024f18a474d11bfec32e3207 (diff)
parent8b124135a97b593d50a90abcec231552b31c7ade (diff)
downloadgit-0476228de500049804ae599f557658c3f9042ad0.zip
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Merge branch 'jc/color-attrs' into maint
* jc/color-attrs: color: allow multiple attributes
-rw-r--r--color.c24
-rw-r--r--color.h16
-rwxr-xr-xt/t4026-color.sh15
3 files changed, 41 insertions, 14 deletions
diff --git a/color.c b/color.c
index 62977f4..e8bcac0 100644
--- a/color.c
+++ b/color.c
@@ -47,7 +47,7 @@ void color_parse_mem(const char *value, int value_len, const char *var,
{
const char *ptr = value;
int len = value_len;
- int attr = -1;
+ unsigned int attr = 0;
int fg = -2;
int bg = -2;
@@ -56,7 +56,7 @@ void color_parse_mem(const char *value, int value_len, const char *var,
return;
}
- /* [fg [bg]] [attr] */
+ /* [fg [bg]] [attr]... */
while (len > 0) {
const char *word = ptr;
int val, wordlen = 0;
@@ -85,19 +85,27 @@ void color_parse_mem(const char *value, int value_len, const char *var,
goto bad;
}
val = parse_attr(word, wordlen);
- if (val < 0 || attr != -1)
+ if (0 <= val)
+ attr |= (1 << val);
+ else
goto bad;
- attr = val;
}
- if (attr >= 0 || fg >= 0 || bg >= 0) {
+ if (attr || fg >= 0 || bg >= 0) {
int sep = 0;
+ int i;
*dst++ = '\033';
*dst++ = '[';
- if (attr >= 0) {
- *dst++ = '0' + attr;
- sep++;
+
+ for (i = 0; attr; i++) {
+ unsigned bit = (1 << i);
+ if (!(attr & bit))
+ continue;
+ attr &= ~bit;
+ if (sep++)
+ *dst++ = ';';
+ *dst++ = '0' + i;
}
if (fg >= 0) {
if (sep++)
diff --git a/color.h b/color.h
index 3cb4b7f..bcb28cf 100644
--- a/color.h
+++ b/color.h
@@ -1,8 +1,20 @@
#ifndef COLOR_H
#define COLOR_H
-/* "\033[1;38;5;2xx;48;5;2xxm\0" is 23 bytes */
-#define COLOR_MAXLEN 24
+/* 2 + (2 * num_attrs) + 8 + 1 + 8 + 'm' + NUL */
+/* "\033[1;2;4;5;7;38;5;2xx;48;5;2xxm\0" */
+/*
+ * The maximum length of ANSI color sequence we would generate:
+ * - leading ESC '[' 2
+ * - attr + ';' 2 * 8 (e.g. "1;")
+ * - fg color + ';' 9 (e.g. "38;5;2xx;")
+ * - fg color + ';' 9 (e.g. "48;5;2xx;")
+ * - terminating 'm' NUL 2
+ *
+ * The above overcounts attr (we only use 5 not 8) and one semicolon
+ * but it is close enough.
+ */
+#define COLOR_MAXLEN 40
/*
* IMPORTANT: Due to the way these color codes are emulated on Windows,
diff --git a/t/t4026-color.sh b/t/t4026-color.sh
index 5ade44c..d5ccdd0 100755
--- a/t/t4026-color.sh
+++ b/t/t4026-color.sh
@@ -8,14 +8,13 @@ test_description='Test diff/status color escape codes'
color()
{
- git config diff.color.new "$1" &&
- test "`git config --get-color diff.color.new`" = "$2"
+ actual=$(git config --get-color no.such.slot "$1") &&
+ test "$actual" = "$2"
}
invalid_color()
{
- git config diff.color.new "$1" &&
- test -z "`git config --get-color diff.color.new 2>/dev/null`"
+ test_must_fail git config --get-color no.such.slot "$1"
}
test_expect_success 'reset' '
@@ -42,6 +41,14 @@ test_expect_success 'fg bg attr' '
color "blue red ul" "[4;34;41m"
'
+test_expect_success 'fg bg attr...' '
+ color "blue bold dim ul blink reverse" "[1;2;4;5;7;34m"
+'
+
+test_expect_success 'long color specification' '
+ color "254 255 bold dim ul blink reverse" "[1;2;4;5;7;38;5;254;48;5;255m"
+'
+
test_expect_success '256 colors' '
color "254 bold 255" "[1;38;5;254;48;5;255m"
'