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syntax.c: Support bg/fg special color-names. #5319

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Refresh colors if changing Normal group
This commit is contained in:
Kerem Cakirer
2016-09-10 13:17:06 +03:00
committed by Justin M. Keyes
parent c4199d1866
commit 0c536b5d8a
2 changed files with 76 additions and 2 deletions
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24
src/nvim/syntax.c
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@@ -6597,6 +6597,9 @@ do_highlight (
else {
if (is_normal_group) {
HL_TABLE()[idx].sg_attr = 0;
// Need to update all groups, because they might be using "bg" and/or
// "fg", which have been changed now.
highlight_attr_set_all();
// If the normal group has changed, it is simpler to refresh every UI
ui_refresh();
} else
@@ -7261,6 +7264,23 @@ int syn_get_final_id(int hl_id)
return hl_id;
}
/// Refresh the color attributes of all highlight groups.
static void highlight_attr_set_all(void)
{
for (int idx = 0; idx < highlight_ga.ga_len; idx++) {
struct hl_group *sgp = &HL_TABLE()[idx];
if (sgp->sg_rgb_bg_name != NULL) {
sgp->sg_rgb_bg = name_to_color(sgp->sg_rgb_bg_name);
}
if (sgp->sg_rgb_fg_name != NULL) {
sgp->sg_rgb_fg = name_to_color(sgp->sg_rgb_fg_name);
}
if (sgp->sg_rgb_sp_name != NULL) {
sgp->sg_rgb_sp = name_to_color(sgp->sg_rgb_sp_name);
}
set_hl_attr(idx);
}
}
/*
* Translate the 'highlight' option into attributes in highlight_attr[] and
@@ -7702,6 +7722,10 @@ RgbValue name_to_color(uint8_t *name)
&& isxdigit(name[6]) && name[7] == NUL) {
// rgb hex string
return strtol((char *)(name + 1), NULL, 16);
} else if (!STRICMP(name, "bg") || !STRICMP(name, "background")) {
return normal_bg;
} else if (!STRICMP(name, "fg") || !STRICMP(name, "foreground")) {
return normal_fg;
}
for (int i = 0; color_name_table[i].name != NULL; i++) {