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Add JQ_COLORS env var for color config (fix #1252)

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Nico Williams authored and William Langford committed 2017-04-29 14:00:52 -04:00
1 parent 32d8f2000a
commit 6d89e297fe
6 files changed
+221 -1
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src/jv_print.c
+36 -1
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@@ -27,11 +27,46 @@
static const jv_kind color_kinds[] =
{JV_KIND_NULL, JV_KIND_FALSE, JV_KIND_TRUE, JV_KIND_NUMBER,
JV_KIND_STRING, JV_KIND_ARRAY, JV_KIND_OBJECT};
static const char* const colors[] =
static char color_bufs[sizeof(color_kinds)/sizeof(color_kinds[0])][16];
static const char *color_bufps[8];
static const char* def_colors[] =
{COL("1;30"), COL("0;39"), COL("0;39"), COL("0;39"),
COL("0;32"), COL("1;39"), COL("1;39")};
#define FIELD_COLOR COL("34;1")
static const char **colors = def_colors;
int
jq_set_colors(const char *c)
{
const char *e;
size_t i;
if (c == NULL)
return 1;
colors = def_colors;
memset(color_bufs, 0, sizeof(color_bufs));
for (i = 0; i < sizeof(def_colors) / sizeof(def_colors[0]); i++)
color_bufps[i] = def_colors[i];
for (i = 0; i < sizeof(def_colors) / sizeof(def_colors[0]) && *c != '\0'; i++, c = e) {
if ((e = strchr(c, ':')) == NULL)
e = c + strlen(c);
if ((size_t)(e - c) > sizeof(color_bufs[i]) - 4 /* ESC [ m NUL */)
return 0;
color_bufs[i][0] = ESC[0];
color_bufs[i][1] = '[';
(void) strncpy(&color_bufs[i][2], c, e - c);
if (strspn(&color_bufs[i][2], "0123456789;") < strlen(&color_bufs[i][2]))
return 0;
color_bufs[i][2 + (e - c)] = 'm';
color_bufps[i] = color_bufs[i];
if (e[0] == ':')
e++;
}
colors = color_bufps;
return 1;
}
static void put_buf(const char *s, int len, FILE *fout, jv *strout, int is_tty) {
if (strout) {
*strout = jv_string_append_buf(*strout, s, len);