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Merge pull request #17589 from kchibisov/add-dashed-dotted-underline

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Add support for double, dashed, and dotted underlines
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James McCoy 2022-03-05 15:00:07 -05:00 committed by GitHub
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14 changed files with 143 additions and 52 deletions
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3
runtime/doc/builtin.txt
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@ -7937,7 +7937,10 @@ synIDattr({synID}, {what} [, {mode}]) *synIDattr()*
"inverse" "1" if inverse (= reverse)
"standout" "1" if standout
"underline" "1" if underlined
"underlineline" "1" if double underlined
"undercurl" "1" if undercurled
"underdot" "1" if dotted underlined
"underdash" "1" if dashed underlined
"strikethrough" "1" if struckthrough
Example (echoes the color of the syntax item under the

15
runtime/doc/syntax.txt
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@ -4875,7 +4875,8 @@ the same syntax file on all UIs.
1. TUI highlight arguments
*bold* *underline* *undercurl*
*bold* *underline* *underlineline*
*undercurl* *underdot* *underdash*
*inverse* *italic* *standout*
*nocombine* *strikethrough*
cterm={attr-list} *attr-list* *highlight-cterm* *E418*
@ -4883,7 +4884,10 @@ cterm={attr-list} *attr-list* *highlight-cterm* *E418*
following items (in any order):
bold
underline
underlineline double underline
undercurl curly underline
underdot dotted underline
underdash dashed underline
strikethrough
reverse
inverse same as reverse
@ -4894,8 +4898,9 @@ cterm={attr-list} *attr-list* *highlight-cterm* *E418*
Note that "bold" can be used here and by using a bold font. They
have the same effect.
"undercurl" falls back to "underline" in a terminal that does not
support it. The color is set using |highlight-guisp|.
"underlineline", "undercurl", "underdot", and "underdash" fall back
to "underline" in a terminal that does not support them. The color is
set using |highlight-guisp|.
start={term-list} *highlight-start* *E422*
stop={term-list} *term-list* *highlight-stop*
@ -5028,8 +5033,8 @@ guifg={color-name} *highlight-guifg*
guibg={color-name} *highlight-guibg*
guisp={color-name} *highlight-guisp*
These give the foreground (guifg), background (guibg) and special
(guisp) color to use in the GUI. "guisp" is used for undercurl
and underline.
(guisp) color to use in the GUI. "guisp" is used for various
underlines.
There are a few special names:
NONE no color (transparent)
bg use normal background color

22
runtime/doc/ui.txt
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@ -285,17 +285,22 @@ numerical highlight ids to the actual attributes.
`foreground`: foreground color.
`background`: background color.
`special`: color to use for underline and undercurl, when present.
`reverse`: reverse video. Foreground and background colors are
switched.
`special`: color to use for various underlines, when
present.
`reverse`: reverse video. Foreground and background colors
are switched.
`italic`: italic text.
`bold`: bold text.
`strikethrough`: struckthrough text.
`underline`: underlined text. The line has `special` color.
`underlineline`: double underlined text. The lines have `special`
color.
`undercurl`: undercurled text. The curl has `special` color.
`blend`: Blend level (0-100). Could be used by UIs to support
blending floating windows to the background or to
signal a transparent cursor.
`underdot`: underdotted text. The dots have `special` color.
`underdash`: underdashed text. The dashes have `special` color.
`blend`: Blend level (0-100). Could be used by UIs to
support blending floating windows to the
background or to signal a transparent cursor.
For absent color keys the default color should be used. Don't store
the default value in the table, rather a sentinel value, so that
@ -444,14 +449,17 @@ is not active. New UIs should implement |ui-linegrid| instead.
`foreground`: foreground color.
`background`: background color.
`special`: color to use for underline and undercurl, when present.
`special`: color to use for various underlines, when present.
`reverse`: reverse video. Foreground and background colors are
switched.
`italic`: italic text.
`bold`: bold text.
`strikethrough`: struckthrough text.
`underline`: underlined text. The line has `special` color.
`underlineline`: double underlined text. The lines have `special` color.
`undercurl`: undercurled text. The curl has `special` color.
`underdot`: underdotted text. The dots have `special` color.
`underdash`: underdashed text. The dashes have `special` color.
["put", text]
The (utf-8 encoded) string `text` is put at the cursor position

2
runtime/syntax/vim.vim
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@ -574,7 +574,7 @@ syn match vimHiBang contained "!" skipwhite nextgroup=@vimHighlightCluster
syn match vimHiGroup contained "\i\+"
syn case ignore
syn keyword vimHiAttrib contained none bold inverse italic nocombine reverse standout strikethrough underline undercurl
syn keyword vimHiAttrib contained none bold inverse italic nocombine reverse standout strikethrough underline underlineline undercurl underdot underdash
syn keyword vimFgBgAttrib contained none bg background fg foreground
syn case match
syn match vimHiAttribList contained "\i\+" contains=vimHiAttrib

6
src/nvim/api/keysets.lua
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@ -83,7 +83,10 @@ return {
"standout";
"strikethrough";
"underline";
"underlineline";
"undercurl";
"underdot";
"underdash";
"italic";
"reverse";
"nocombine";
@ -105,7 +108,10 @@ return {
"standout";
"strikethrough";
"underline";
"underlineline";
"undercurl";
"underdot";
"underdash";
"italic";
"reverse";
"nocombine";

16
src/nvim/eval/funcs.c
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@ -11408,14 +11408,22 @@ static void f_synIDattr(typval_T *argvars, typval_T *rettv, FunPtr fptr)
p = highlight_has_attr(id, HL_STANDOUT, modec);
}
break;
case 'u':
if (STRLEN(what) <= 5 || TOLOWER_ASC(what[5]) != 'c') { // underline
p = highlight_has_attr(id, HL_UNDERLINE, modec);
} else { // undercurl
case 'u': {
const size_t len = STRLEN(what);
if (len <= 5 || (TOLOWER_ASC(what[5]) == 'l' && len <= 9)) { // underline
p = highlight_has_attr(id, HL_UNDERCURL, modec);
} else if (TOLOWER_ASC(what[5]) == 'c') { // undercurl
p = highlight_has_attr(id, HL_UNDERCURL, modec);
} else if (len > 9 && TOLOWER_ASC(what[9]) == 'l') { // underlineline
p = highlight_has_attr(id, HL_UNDERLINELINE, modec);
} else if (len > 6 && TOLOWER_ASC(what[6]) == 'o') { // underdot
p = highlight_has_attr(id, HL_UNDERDOT, modec);
} else { // underdash
p = highlight_has_attr(id, HL_UNDERDASH, modec);
}
break;
}
}
rettv->v_type = VAR_STRING;
rettv->vval.v_string = (char_u *)(p == NULL ? p : xstrdup(p));

3
src/nvim/hardcopy.c
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@ -420,7 +420,10 @@ static void prt_get_attr(int hl_id, prt_text_attr_T *pattr, int modec)
pattr->bold = (highlight_has_attr(hl_id, HL_BOLD, modec) != NULL);
pattr->italic = (highlight_has_attr(hl_id, HL_ITALIC, modec) != NULL);
pattr->underline = (highlight_has_attr(hl_id, HL_UNDERLINE, modec) != NULL);
pattr->underlineline = (highlight_has_attr(hl_id, HL_UNDERLINELINE, modec) != NULL);
pattr->undercurl = (highlight_has_attr(hl_id, HL_UNDERCURL, modec) != NULL);
pattr->underdot = (highlight_has_attr(hl_id, HL_UNDERDOT, modec) != NULL);
pattr->underdash = (highlight_has_attr(hl_id, HL_UNDERDASH, modec) != NULL);
uint32_t fg_color = prt_get_color(hl_id, modec);

3
src/nvim/hardcopy.h
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@ -18,6 +18,9 @@ typedef struct {
TriState italic;
TriState underline;
int undercurl;
int underlineline;
int underdot;
int underdash;
} prt_text_attr_T;
/*

20
src/nvim/highlight.c
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@ -558,7 +558,7 @@ int hl_blend_attrs(int back_attr, int front_attr, bool *through)
cattrs = battrs;
cattrs.rgb_fg_color = rgb_blend(ratio, battrs.rgb_fg_color,
fattrs.rgb_bg_color);
if (cattrs.rgb_ae_attr & (HL_UNDERLINE|HL_UNDERCURL)) {
if (cattrs.rgb_ae_attr & (HL_ANY_UNDERLINE)) {
cattrs.rgb_sp_color = rgb_blend(ratio, battrs.rgb_sp_color,
fattrs.rgb_bg_color);
} else {
@ -576,7 +576,7 @@ int hl_blend_attrs(int back_attr, int front_attr, bool *through)
}
cattrs.rgb_fg_color = rgb_blend(ratio/2, battrs.rgb_fg_color,
fattrs.rgb_fg_color);
if (cattrs.rgb_ae_attr & (HL_UNDERLINE|HL_UNDERCURL)) {
if (cattrs.rgb_ae_attr & (HL_ANY_UNDERLINE)) {
cattrs.rgb_sp_color = rgb_blend(ratio/2, battrs.rgb_bg_color,
fattrs.rgb_sp_color);
} else {
@ -743,10 +743,23 @@ Dictionary hlattrs2dict(HlAttrs ae, bool use_rgb)
PUT(hl, "underline", BOOLEAN_OBJ(true));
}
if (mask & HL_UNDERLINELINE) {
PUT(hl, "underlineline", BOOLEAN_OBJ(true));
}
if (mask & HL_UNDERCURL) {
PUT(hl, "undercurl", BOOLEAN_OBJ(true));
}
if (mask & HL_UNDERDOT) {
PUT(hl, "underdot", BOOLEAN_OBJ(true));
}
if (mask & HL_UNDERDASH) {
PUT(hl, "underdash", BOOLEAN_OBJ(true));
}
if (mask & HL_ITALIC) {
PUT(hl, "italic", BOOLEAN_OBJ(true));
}
@ -813,7 +826,10 @@ HlAttrs dict2hlattrs(Dict(highlight) *dict, bool use_rgb, int *link_id, Error *e
CHECK_FLAG(dict, mask, bold, , HL_BOLD);
CHECK_FLAG(dict, mask, standout, , HL_STANDOUT);
CHECK_FLAG(dict, mask, underline, , HL_UNDERLINE);
CHECK_FLAG(dict, mask, underlineline, , HL_UNDERLINELINE);
CHECK_FLAG(dict, mask, undercurl, , HL_UNDERCURL);
CHECK_FLAG(dict, mask, underdot, , HL_UNDERDOT);
CHECK_FLAG(dict, mask, underdash, , HL_UNDERDASH);
CHECK_FLAG(dict, mask, italic, , HL_ITALIC);
CHECK_FLAG(dict, mask, reverse, , HL_INVERSE);
CHECK_FLAG(dict, mask, strikethrough, , HL_STRIKETHROUGH);

4
src/nvim/highlight_defs.h
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@ -24,6 +24,10 @@ typedef enum {
HL_FG_INDEXED = 0x0200,
HL_DEFAULT = 0x0400,
HL_GLOBAL = 0x0800,
HL_UNDERLINELINE = 0x1000,
HL_UNDERDOT = 0x2000,
HL_UNDERDASH = 0x4000,
HL_ANY_UNDERLINE = HL_UNDERLINE | HL_UNDERLINELINE | HL_UNDERCURL | HL_UNDERDOT | HL_UNDERDASH,
} HlAttrFlags;
/// Stores a complete highlighting entry, including colors and attributes

8
src/nvim/syntax.c
View File

@ -121,11 +121,11 @@ static int include_link = 0; // when 2 include "nvim/link" and "clear"
/// The "term", "cterm" and "gui" arguments can be any combination of the
/// following names, separated by commas (but no spaces!).
static char *(hl_name_table[]) =
{ "bold", "standout", "underline", "undercurl",
"italic", "reverse", "inverse", "strikethrough", "nocombine", "NONE" };
{ "bold", "standout", "underline", "underlineline", "undercurl", "underdot",
"underdash", "italic", "reverse", "inverse", "strikethrough", "nocombine", "NONE" };
static int hl_attr_table[] =
{ HL_BOLD, HL_STANDOUT, HL_UNDERLINE, HL_UNDERCURL, HL_ITALIC, HL_INVERSE,
HL_INVERSE, HL_STRIKETHROUGH, HL_NOCOMBINE, 0 };
{ HL_BOLD, HL_STANDOUT, HL_UNDERLINE, HL_UNDERLINELINE, HL_UNDERCURL, HL_UNDERDOT, HL_UNDERDASH,
HL_ITALIC, HL_INVERSE, HL_INVERSE, HL_STRIKETHROUGH, HL_NOCOMBINE, 0 };
static char e_illegal_arg[] = N_("E390: Illegal argument: %s");

35
src/nvim/tui/tui.c
View File

@ -528,7 +528,7 @@ static bool attrs_differ(UI *ui, int id1, int id2, bool rgb)
return a1.cterm_fg_color != a2.cterm_fg_color
|| a1.cterm_bg_color != a2.cterm_bg_color
|| a1.cterm_ae_attr != a2.cterm_ae_attr
|| (a1.cterm_ae_attr & (HL_UNDERLINE|HL_UNDERCURL)
|| (a1.cterm_ae_attr & HL_ANY_UNDERLINE
&& a1.rgb_sp_color != a2.rgb_sp_color);
}
}
@ -552,15 +552,27 @@ static void update_attrs(UI *ui, int attr_id)
bool strikethrough = attr & HL_STRIKETHROUGH;
bool underline;
bool underlineline;
bool undercurl;
bool underdot;
bool underdash;
if (data->unibi_ext.set_underline_style != -1) {
underline = attr & HL_UNDERLINE;
underlineline = attr & HL_UNDERLINELINE;
undercurl = attr & HL_UNDERCURL;
underdash = attr & HL_UNDERDASH;
underdot = attr & HL_UNDERDOT;
} else {
underline = (attr & HL_UNDERLINE) || (attr & HL_UNDERCURL);
underline = attr & HL_ANY_UNDERLINE;
underlineline = false;
undercurl = false;
underdot = false;
underdash = false;
}
bool has_any_underline = undercurl || underline
|| underdot || underdash || underlineline;
if (unibi_get_str(data->ut, unibi_set_attributes)) {
if (bold || reverse || underline || standout) {
UNIBI_SET_NUM_VAR(data->params[0], standout);
@ -599,11 +611,24 @@ static void update_attrs(UI *ui, int attr_id)
if (strikethrough && data->unibi_ext.enter_strikethrough_mode != -1) {
unibi_out_ext(ui, data->unibi_ext.enter_strikethrough_mode);
}
if (underlineline && data->unibi_ext.set_underline_style != -1) {
UNIBI_SET_NUM_VAR(data->params[0], 2);
unibi_out_ext(ui, data->unibi_ext.set_underline_style);
}
if (undercurl && data->unibi_ext.set_underline_style != -1) {
UNIBI_SET_NUM_VAR(data->params[0], 3);
unibi_out_ext(ui, data->unibi_ext.set_underline_style);
}
if ((undercurl || underline) && data->unibi_ext.set_underline_color != -1) {
if (underdot && data->unibi_ext.set_underline_style != -1) {
UNIBI_SET_NUM_VAR(data->params[0], 4);
unibi_out_ext(ui, data->unibi_ext.set_underline_style);
}
if (underdash && data->unibi_ext.set_underline_style != -1) {
UNIBI_SET_NUM_VAR(data->params[0], 5);
unibi_out_ext(ui, data->unibi_ext.set_underline_style);
}
if (has_any_underline && data->unibi_ext.set_underline_color != -1) {
int color = attrs.rgb_sp_color;
if (color != -1) {
UNIBI_SET_NUM_VAR(data->params[0], (color >> 16) & 0xff); // red
@ -652,13 +677,13 @@ static void update_attrs(UI *ui, int attr_id)
data->default_attr = fg == -1 && bg == -1
&& !bold && !italic && !underline && !undercurl && !reverse && !standout
&& !bold && !italic && !has_any_underline && !reverse && !standout
&& !strikethrough;
// Non-BCE terminals can't clear with non-default background color. Some BCE
// terminals don't support attributes either, so don't rely on it. But assume
// italic and bold has no effect if there is no text.
data->can_clear_attr = !reverse && !standout && !underline && !undercurl
data->can_clear_attr = !reverse && !standout && !has_any_underline
&& !strikethrough && (data->bce || bg == -1);
}

15
test/functional/api/highlight_spec.lua
View File

@ -28,8 +28,11 @@ describe('API: highlight',function()
bold = true,
italic = true,
reverse = true,
undercurl = true,
underline = true,
underlineline = true,
undercurl = true,
underdot = true,
underdash = true,
strikethrough = true,
}
@ -52,7 +55,7 @@ describe('API: highlight',function()
eq('Invalid highlight id: 30000', string.match(emsg, 'Invalid.*'))
-- Test all highlight properties.
command('hi NewHighlight gui=underline,bold,undercurl,italic,reverse,strikethrough')
command('hi NewHighlight gui=underline,bold,underlineline,undercurl,underdot,underdash,italic,reverse,strikethrough')
eq(expected_rgb2, nvim("get_hl_by_id", hl_id, true))
-- Test nil argument.
@ -195,6 +198,9 @@ describe("API: set highlight", function()
reverse = true,
undercurl = true,
underline = true,
underdash = true,
underdot = true,
underlineline = true,
strikethrough = true,
cterm = {
italic = true,
@ -211,6 +217,9 @@ describe("API: set highlight", function()
reverse = true,
undercurl = true,
underline = true,
underdash = true,
underdot = true,
underlineline = true,
strikethrough = true,
}
local highlight3_result_cterm = {
@ -274,7 +283,7 @@ describe("API: set highlight", function()
exec_capture('highlight Test_hl'))
meths.set_hl(0, 'Test_hl2', highlight3_config)
eq('Test_hl2 xxx cterm=undercurl,italic,reverse,strikethrough ctermfg=8 ctermbg=15 gui=bold,underline,undercurl,italic,reverse,strikethrough guifg=#ff0000 guibg=#0032aa',
eq('Test_hl2 xxx cterm=undercurl,italic,reverse,strikethrough ctermfg=8 ctermbg=15 gui=bold,underline,underlineline,undercurl,underdot,underdash,italic,reverse,strikethrough guifg=#ff0000 guibg=#0032aa',
exec_capture('highlight Test_hl2'))
-- Colors are stored exactly as they are defined.

9
test/functional/ui/screen.lua
View File

@ -1559,10 +1559,11 @@ end
function Screen:_equal_attrs(a, b)
return a.bold == b.bold and a.standout == b.standout and
a.underline == b.underline and a.undercurl == b.undercurl and
a.italic == b.italic and a.reverse == b.reverse and
a.foreground == b.foreground and a.background == b.background and
a.special == b.special and a.blend == b.blend and
a.underline == b.underline and a.underlineline == b.underlineline and
a.undercurl == b.undercurl and a.underdot == b.underdot and
a.underdash == b.underdash and a.italic == b.italic and
a.reverse == b.reverse and a.foreground == b.foreground and
a.background == b.background and a.special == b.special and a.blend == b.blend and
a.strikethrough == b.strikethrough and
a.fg_indexed == b.fg_indexed and a.bg_indexed == b.bg_indexed
end