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highlight.c
4083 lines (3772 loc) · 107 KB
/
highlight.c
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/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* Highlighting stuff.
*/
#include "vim.h"
#define SG_TERM 1 // term has been set
#define SG_CTERM 2 // cterm has been set
#define SG_GUI 4 // gui has been set
#define SG_LINK 8 // link has been set
/*
* 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", "nocombine", "strikethrough", "NONE"};
static int hl_attr_table[] =
{HL_BOLD, HL_STANDOUT, HL_UNDERLINE, HL_UNDERCURL, HL_ITALIC, HL_INVERSE, HL_INVERSE, HL_NOCOMBINE, HL_STRIKETHROUGH, 0};
#define ATTR_COMBINE(attr_a, attr_b) ((((attr_b) & HL_NOCOMBINE) ? attr_b : (attr_a)) | (attr_b))
/*
* Structure that stores information about a highlight group.
* The ID of a highlight group is also called group ID. It is the index in
* the highlight_ga array PLUS ONE.
*/
typedef struct
{
char_u *sg_name; // highlight group name
char_u *sg_name_u; // uppercase of sg_name
int sg_cleared; // "hi clear" was used
// for normal terminals
int sg_term; // "term=" highlighting attributes
char_u *sg_start; // terminal string for start highl
char_u *sg_stop; // terminal string for stop highl
int sg_term_attr; // Screen attr for term mode
// for color terminals
int sg_cterm; // "cterm=" highlighting attr
int sg_cterm_bold; // bold attr was set for light color
int sg_cterm_fg; // terminal fg color number + 1
int sg_cterm_bg; // terminal bg color number + 1
int sg_cterm_ul; // terminal ul color number + 1
int sg_cterm_attr; // Screen attr for color term mode
// for when using the GUI
#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
guicolor_T sg_gui_fg; // GUI foreground color handle
guicolor_T sg_gui_bg; // GUI background color handle
guicolor_T sg_gui_sp; // GUI special color handle
#endif
#ifdef FEAT_GUI
GuiFont sg_font; // GUI font handle
#ifdef FEAT_XFONTSET
GuiFontset sg_fontset; // GUI fontset handle
#endif
char_u *sg_font_name; // GUI font or fontset name
int sg_gui_attr; // Screen attr for GUI mode
#endif
#if defined(FEAT_GUI) || defined(FEAT_EVAL)
// Store the sp color name for the GUI or synIDattr()
int sg_gui; // "gui=" highlighting attributes
char_u *sg_gui_fg_name;// GUI foreground color name
char_u *sg_gui_bg_name;// GUI background color name
char_u *sg_gui_sp_name;// GUI special color name
#endif
int sg_link; // link to this highlight group ID
int sg_deflink; // default link; restored in highlight_clear()
int sg_set; // combination of SG_* flags
#ifdef FEAT_EVAL
sctx_T sg_deflink_sctx; // script where the default link was set
sctx_T sg_script_ctx; // script in which the group was last set
#endif
} hl_group_T;
// highlight groups for 'highlight' option
static garray_T highlight_ga;
#define HL_TABLE() ((hl_group_T *)((highlight_ga.ga_data)))
/*
* An attribute number is the index in attr_table plus ATTR_OFF.
*/
#define ATTR_OFF (HL_ALL + 1)
static void syn_unadd_group(void);
static void set_hl_attr(int idx);
static void highlight_list_one(int id);
static int highlight_list_arg(int id, int didh, int type, int iarg, char_u *sarg, char *name);
static int syn_add_group(char_u *name);
static int hl_has_settings(int idx, int check_link);
static void highlight_clear(int idx);
#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
static void gui_do_one_color(int idx, int do_menu, int do_tooltip);
#endif
#ifdef FEAT_GUI
static int set_group_colors(char_u *name, guicolor_T *fgp, guicolor_T *bgp, int do_menu, int use_norm, int do_tooltip);
static void hl_do_font(int idx, char_u *arg, int do_normal, int do_menu, int do_tooltip, int free_font);
#endif
/*
* The default highlight groups. These are compiled-in for fast startup and
* they still work when the runtime files can't be found.
* When making changes here, also change runtime/colors/default.vim!
* The #ifdefs are needed to reduce the amount of static data. Helps to make
* the 16 bit DOS (museum) version compile.
*/
#if defined(FEAT_GUI) || defined(FEAT_EVAL)
# define CENT(a, b) b
#else
# define CENT(a, b) a
#endif
static char *(highlight_init_both[]) = {
CENT("ErrorMsg term=standout ctermbg=DarkRed ctermfg=White",
"ErrorMsg term=standout ctermbg=DarkRed ctermfg=White guibg=Red guifg=White"),
CENT("IncSearch term=reverse cterm=reverse",
"IncSearch term=reverse cterm=reverse gui=reverse"),
CENT("ModeMsg term=bold cterm=bold",
"ModeMsg term=bold cterm=bold gui=bold"),
CENT("NonText term=bold ctermfg=Blue",
"NonText term=bold ctermfg=Blue gui=bold guifg=Blue"),
CENT("StatusLine term=reverse,bold cterm=reverse,bold",
"StatusLine term=reverse,bold cterm=reverse,bold gui=reverse,bold"),
CENT("StatusLineNC term=reverse cterm=reverse",
"StatusLineNC term=reverse cterm=reverse gui=reverse"),
"default link EndOfBuffer NonText",
CENT("VertSplit term=reverse cterm=reverse",
"VertSplit term=reverse cterm=reverse gui=reverse"),
#ifdef FEAT_CLIPBOARD
CENT("VisualNOS term=underline,bold cterm=underline,bold",
"VisualNOS term=underline,bold cterm=underline,bold gui=underline,bold"),
#endif
#ifdef FEAT_DIFF
CENT("DiffText term=reverse cterm=bold ctermbg=Red",
"DiffText term=reverse cterm=bold ctermbg=Red gui=bold guibg=Red"),
#endif
CENT("PmenuSbar ctermbg=Grey",
"PmenuSbar ctermbg=Grey guibg=Grey"),
CENT("TabLineSel term=bold cterm=bold",
"TabLineSel term=bold cterm=bold gui=bold"),
CENT("TabLineFill term=reverse cterm=reverse",
"TabLineFill term=reverse cterm=reverse gui=reverse"),
#ifdef FEAT_GUI
"Cursor guibg=fg guifg=bg",
"lCursor guibg=fg guifg=bg", // should be different, but what?
#endif
"default link QuickFixLine Search",
CENT("Normal cterm=NONE", "Normal gui=NONE"),
NULL
};
// Default colors only used with a light background.
static char *(highlight_init_light[]) = {
CENT("Directory term=bold ctermfg=DarkBlue",
"Directory term=bold ctermfg=DarkBlue guifg=Blue"),
CENT("LineNr term=underline ctermfg=Brown",
"LineNr term=underline ctermfg=Brown guifg=Brown"),
CENT("CursorLineNr term=bold cterm=underline ctermfg=Brown",
"CursorLineNr term=bold cterm=underline ctermfg=Brown gui=bold guifg=Brown"),
CENT("MoreMsg term=bold ctermfg=DarkGreen",
"MoreMsg term=bold ctermfg=DarkGreen gui=bold guifg=SeaGreen"),
CENT("Question term=standout ctermfg=DarkGreen",
"Question term=standout ctermfg=DarkGreen gui=bold guifg=SeaGreen"),
CENT("Search term=reverse ctermbg=Yellow ctermfg=NONE",
"Search term=reverse ctermbg=Yellow ctermfg=NONE guibg=Yellow guifg=NONE"),
#ifdef FEAT_SPELL
CENT("SpellBad term=reverse ctermbg=LightRed",
"SpellBad term=reverse ctermbg=LightRed guisp=Red gui=undercurl"),
CENT("SpellCap term=reverse ctermbg=LightBlue",
"SpellCap term=reverse ctermbg=LightBlue guisp=Blue gui=undercurl"),
CENT("SpellRare term=reverse ctermbg=LightMagenta",
"SpellRare term=reverse ctermbg=LightMagenta guisp=Magenta gui=undercurl"),
CENT("SpellLocal term=underline ctermbg=Cyan",
"SpellLocal term=underline ctermbg=Cyan guisp=DarkCyan gui=undercurl"),
#endif
CENT("PmenuThumb ctermbg=Black",
"PmenuThumb ctermbg=Black guibg=Black"),
CENT("Pmenu ctermbg=LightMagenta ctermfg=Black",
"Pmenu ctermbg=LightMagenta ctermfg=Black guibg=LightMagenta"),
CENT("PmenuSel ctermbg=LightGrey ctermfg=Black",
"PmenuSel ctermbg=LightGrey ctermfg=Black guibg=Grey"),
CENT("SpecialKey term=bold ctermfg=DarkBlue",
"SpecialKey term=bold ctermfg=DarkBlue guifg=Blue"),
CENT("Title term=bold ctermfg=DarkMagenta",
"Title term=bold ctermfg=DarkMagenta gui=bold guifg=Magenta"),
CENT("WarningMsg term=standout ctermfg=DarkRed",
"WarningMsg term=standout ctermfg=DarkRed guifg=Red"),
#ifdef FEAT_WILDMENU
CENT("WildMenu term=standout ctermbg=Yellow ctermfg=Black",
"WildMenu term=standout ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black"),
#endif
#ifdef FEAT_FOLDING
CENT("Folded term=standout ctermbg=Grey ctermfg=DarkBlue",
"Folded term=standout ctermbg=Grey ctermfg=DarkBlue guibg=LightGrey guifg=DarkBlue"),
CENT("FoldColumn term=standout ctermbg=Grey ctermfg=DarkBlue",
"FoldColumn term=standout ctermbg=Grey ctermfg=DarkBlue guibg=Grey guifg=DarkBlue"),
#endif
#ifdef FEAT_SIGNS
CENT("SignColumn term=standout ctermbg=Grey ctermfg=DarkBlue",
"SignColumn term=standout ctermbg=Grey ctermfg=DarkBlue guibg=Grey guifg=DarkBlue"),
#endif
CENT("Visual term=reverse",
"Visual term=reverse guibg=LightGrey"),
#ifdef FEAT_DIFF
CENT("DiffAdd term=bold ctermbg=LightBlue",
"DiffAdd term=bold ctermbg=LightBlue guibg=LightBlue"),
CENT("DiffChange term=bold ctermbg=LightMagenta",
"DiffChange term=bold ctermbg=LightMagenta guibg=LightMagenta"),
CENT("DiffDelete term=bold ctermfg=Blue ctermbg=LightCyan",
"DiffDelete term=bold ctermfg=Blue ctermbg=LightCyan gui=bold guifg=Blue guibg=LightCyan"),
#endif
CENT("TabLine term=underline cterm=underline ctermfg=black ctermbg=LightGrey",
"TabLine term=underline cterm=underline ctermfg=black ctermbg=LightGrey gui=underline guibg=LightGrey"),
#ifdef FEAT_SYN_HL
CENT("CursorColumn term=reverse ctermbg=LightGrey",
"CursorColumn term=reverse ctermbg=LightGrey guibg=Grey90"),
CENT("CursorLine term=underline cterm=underline",
"CursorLine term=underline cterm=underline guibg=Grey90"),
CENT("ColorColumn term=reverse ctermbg=LightRed",
"ColorColumn term=reverse ctermbg=LightRed guibg=LightRed"),
#endif
#ifdef FEAT_CONCEAL
CENT("Conceal ctermbg=DarkGrey ctermfg=LightGrey",
"Conceal ctermbg=DarkGrey ctermfg=LightGrey guibg=DarkGrey guifg=LightGrey"),
#endif
CENT("MatchParen term=reverse ctermbg=Cyan",
"MatchParen term=reverse ctermbg=Cyan guibg=Cyan"),
#ifdef FEAT_TERMINAL
CENT("StatusLineTerm term=reverse,bold cterm=bold ctermfg=White ctermbg=DarkGreen",
"StatusLineTerm term=reverse,bold cterm=bold ctermfg=White ctermbg=DarkGreen gui=bold guifg=bg guibg=DarkGreen"),
CENT("StatusLineTermNC term=reverse ctermfg=White ctermbg=DarkGreen",
"StatusLineTermNC term=reverse ctermfg=White ctermbg=DarkGreen guifg=bg guibg=DarkGreen"),
#endif
#ifdef FEAT_MENU
CENT("ToolbarLine term=underline ctermbg=LightGrey",
"ToolbarLine term=underline ctermbg=LightGrey guibg=LightGrey"),
CENT("ToolbarButton cterm=bold ctermfg=White ctermbg=DarkGrey",
"ToolbarButton cterm=bold ctermfg=White ctermbg=DarkGrey gui=bold guifg=White guibg=Grey40"),
#endif
NULL
};
// Default colors only used with a dark background.
static char *(highlight_init_dark[]) = {
CENT("Directory term=bold ctermfg=LightCyan",
"Directory term=bold ctermfg=LightCyan guifg=Cyan"),
CENT("LineNr term=underline ctermfg=Yellow",
"LineNr term=underline ctermfg=Yellow guifg=Yellow"),
CENT("CursorLineNr term=bold cterm=underline ctermfg=Yellow",
"CursorLineNr term=bold cterm=underline ctermfg=Yellow gui=bold guifg=Yellow"),
CENT("MoreMsg term=bold ctermfg=LightGreen",
"MoreMsg term=bold ctermfg=LightGreen gui=bold guifg=SeaGreen"),
CENT("Question term=standout ctermfg=LightGreen",
"Question term=standout ctermfg=LightGreen gui=bold guifg=Green"),
CENT("Search term=reverse ctermbg=Yellow ctermfg=Black",
"Search term=reverse ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black"),
CENT("SpecialKey term=bold ctermfg=LightBlue",
"SpecialKey term=bold ctermfg=LightBlue guifg=Cyan"),
#ifdef FEAT_SPELL
CENT("SpellBad term=reverse ctermbg=Red",
"SpellBad term=reverse ctermbg=Red guisp=Red gui=undercurl"),
CENT("SpellCap term=reverse ctermbg=Blue",
"SpellCap term=reverse ctermbg=Blue guisp=Blue gui=undercurl"),
CENT("SpellRare term=reverse ctermbg=Magenta",
"SpellRare term=reverse ctermbg=Magenta guisp=Magenta gui=undercurl"),
CENT("SpellLocal term=underline ctermbg=Cyan",
"SpellLocal term=underline ctermbg=Cyan guisp=Cyan gui=undercurl"),
#endif
CENT("PmenuThumb ctermbg=White",
"PmenuThumb ctermbg=White guibg=White"),
CENT("Pmenu ctermbg=Magenta ctermfg=Black",
"Pmenu ctermbg=Magenta ctermfg=Black guibg=Magenta"),
CENT("PmenuSel ctermbg=Black ctermfg=DarkGrey",
"PmenuSel ctermbg=Black ctermfg=DarkGrey guibg=DarkGrey"),
CENT("Title term=bold ctermfg=LightMagenta",
"Title term=bold ctermfg=LightMagenta gui=bold guifg=Magenta"),
CENT("WarningMsg term=standout ctermfg=LightRed",
"WarningMsg term=standout ctermfg=LightRed guifg=Red"),
#ifdef FEAT_WILDMENU
CENT("WildMenu term=standout ctermbg=Yellow ctermfg=Black",
"WildMenu term=standout ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black"),
#endif
#ifdef FEAT_FOLDING
CENT("Folded term=standout ctermbg=DarkGrey ctermfg=Cyan",
"Folded term=standout ctermbg=DarkGrey ctermfg=Cyan guibg=DarkGrey guifg=Cyan"),
CENT("FoldColumn term=standout ctermbg=DarkGrey ctermfg=Cyan",
"FoldColumn term=standout ctermbg=DarkGrey ctermfg=Cyan guibg=Grey guifg=Cyan"),
#endif
#ifdef FEAT_SIGNS
CENT("SignColumn term=standout ctermbg=DarkGrey ctermfg=Cyan",
"SignColumn term=standout ctermbg=DarkGrey ctermfg=Cyan guibg=Grey guifg=Cyan"),
#endif
CENT("Visual term=reverse",
"Visual term=reverse guibg=DarkGrey"),
#ifdef FEAT_DIFF
CENT("DiffAdd term=bold ctermbg=DarkBlue",
"DiffAdd term=bold ctermbg=DarkBlue guibg=DarkBlue"),
CENT("DiffChange term=bold ctermbg=DarkMagenta",
"DiffChange term=bold ctermbg=DarkMagenta guibg=DarkMagenta"),
CENT("DiffDelete term=bold ctermfg=Blue ctermbg=DarkCyan",
"DiffDelete term=bold ctermfg=Blue ctermbg=DarkCyan gui=bold guifg=Blue guibg=DarkCyan"),
#endif
CENT("TabLine term=underline cterm=underline ctermfg=white ctermbg=DarkGrey",
"TabLine term=underline cterm=underline ctermfg=white ctermbg=DarkGrey gui=underline guibg=DarkGrey"),
#ifdef FEAT_SYN_HL
CENT("CursorColumn term=reverse ctermbg=DarkGrey",
"CursorColumn term=reverse ctermbg=DarkGrey guibg=Grey40"),
CENT("CursorLine term=underline cterm=underline",
"CursorLine term=underline cterm=underline guibg=Grey40"),
CENT("ColorColumn term=reverse ctermbg=DarkRed",
"ColorColumn term=reverse ctermbg=DarkRed guibg=DarkRed"),
#endif
CENT("MatchParen term=reverse ctermbg=DarkCyan",
"MatchParen term=reverse ctermbg=DarkCyan guibg=DarkCyan"),
#ifdef FEAT_CONCEAL
CENT("Conceal ctermbg=DarkGrey ctermfg=LightGrey",
"Conceal ctermbg=DarkGrey ctermfg=LightGrey guibg=DarkGrey guifg=LightGrey"),
#endif
#ifdef FEAT_TERMINAL
CENT("StatusLineTerm term=reverse,bold cterm=bold ctermfg=Black ctermbg=LightGreen",
"StatusLineTerm term=reverse,bold cterm=bold ctermfg=Black ctermbg=LightGreen gui=bold guifg=bg guibg=LightGreen"),
CENT("StatusLineTermNC term=reverse ctermfg=Black ctermbg=LightGreen",
"StatusLineTermNC term=reverse ctermfg=Black ctermbg=LightGreen guifg=bg guibg=LightGreen"),
#endif
#ifdef FEAT_MENU
CENT("ToolbarLine term=underline ctermbg=DarkGrey",
"ToolbarLine term=underline ctermbg=DarkGrey guibg=Grey50"),
CENT("ToolbarButton cterm=bold ctermfg=Black ctermbg=LightGrey",
"ToolbarButton cterm=bold ctermfg=Black ctermbg=LightGrey gui=bold guifg=Black guibg=LightGrey"),
#endif
NULL
};
/*
* Returns the number of highlight groups.
*/
int
highlight_num_groups(void)
{
return highlight_ga.ga_len;
}
/*
* Returns the name of a highlight group.
*/
char_u *
highlight_group_name(int id)
{
return HL_TABLE()[id].sg_name;
}
/*
* Returns the ID of the link to a highlight group.
*/
int
highlight_link_id(int id)
{
return HL_TABLE()[id].sg_link;
}
void
init_highlight(
int both, // include groups where 'bg' doesn't matter
int reset) // clear group first
{
int i;
char **pp;
static int had_both = FALSE;
#ifdef FEAT_EVAL
char_u *p;
// Try finding the color scheme file. Used when a color file was loaded
// and 'background' or 't_Co' is changed.
p = get_var_value((char_u *)"g:colors_name");
if (p != NULL)
{
// The value of g:colors_name could be freed when sourcing the script,
// making "p" invalid, so copy it.
char_u *copy_p = vim_strsave(p);
int r;
if (copy_p != NULL)
{
r = load_colors(copy_p);
vim_free(copy_p);
if (r == OK)
return;
}
}
#endif
// Didn't use a color file, use the compiled-in colors.
if (both)
{
had_both = TRUE;
pp = highlight_init_both;
for (i = 0; pp[i] != NULL; ++i)
do_highlight((char_u *)pp[i], reset, TRUE);
}
else if (!had_both)
// Don't do anything before the call with both == TRUE from main().
// Not everything has been setup then, and that call will overrule
// everything anyway.
return;
if (*p_bg == 'l')
pp = highlight_init_light;
else
pp = highlight_init_dark;
for (i = 0; pp[i] != NULL; ++i)
do_highlight((char_u *)pp[i], reset, TRUE);
// Reverse looks ugly, but grey may not work for 8 colors. Thus let it
// depend on the number of colors available.
// With 8 colors brown is equal to yellow, need to use black for Search fg
// to avoid Statement highlighted text disappears.
// Clear the attributes, needed when changing the t_Co value.
if (t_colors > 8)
do_highlight((char_u *)(*p_bg == 'l'
? "Visual cterm=NONE ctermbg=LightGrey"
: "Visual cterm=NONE ctermbg=DarkGrey"), FALSE, TRUE);
else
{
do_highlight((char_u *)"Visual cterm=reverse ctermbg=NONE",
FALSE, TRUE);
if (*p_bg == 'l')
do_highlight((char_u *)"Search ctermfg=black", FALSE, TRUE);
}
#ifdef FEAT_SYN_HL
// If syntax highlighting is enabled load the highlighting for it.
if (get_var_value((char_u *)"g:syntax_on") != NULL)
{
static int recursive = 0;
if (recursive >= 5)
emsg(_("E679: recursive loop loading syncolor.vim"));
else
{
++recursive;
(void)source_runtime((char_u *)"syntax/syncolor.vim", DIP_ALL);
--recursive;
}
}
#endif
}
/*
* Load color file "name".
* Return OK for success, FAIL for failure.
*/
int
load_colors(char_u *name)
{
char_u *buf;
int retval = FAIL;
static int recursive = FALSE;
// When being called recursively, this is probably because setting
// 'background' caused the highlighting to be reloaded. This means it is
// working, thus we should return OK.
if (recursive)
return OK;
recursive = TRUE;
buf = alloc(STRLEN(name) + 12);
if (buf != NULL)
{
#if defined(FEAT_EVAL) && (defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS))
load_default_colors_lists();
#endif
apply_autocmds(EVENT_COLORSCHEMEPRE, name,
curbuf->b_fname, FALSE, curbuf);
sprintf((char *)buf, "colors/%s.vim", name);
retval = source_runtime(buf, DIP_START + DIP_OPT);
vim_free(buf);
apply_autocmds(EVENT_COLORSCHEME, name, curbuf->b_fname, FALSE, curbuf);
}
recursive = FALSE;
return retval;
}
static char *(color_names[28]) = {
"Black", "DarkBlue", "DarkGreen", "DarkCyan",
"DarkRed", "DarkMagenta", "Brown", "DarkYellow",
"Gray", "Grey", "LightGray", "LightGrey",
"DarkGray", "DarkGrey",
"Blue", "LightBlue", "Green", "LightGreen",
"Cyan", "LightCyan", "Red", "LightRed", "Magenta",
"LightMagenta", "Yellow", "LightYellow", "White", "NONE"};
// indices:
// 0, 1, 2, 3,
// 4, 5, 6, 7,
// 8, 9, 10, 11,
// 12, 13,
// 14, 15, 16, 17,
// 18, 19, 20, 21, 22,
// 23, 24, 25, 26, 27
static int color_numbers_16[28] = {0, 1, 2, 3,
4, 5, 6, 6,
7, 7, 7, 7,
8, 8,
9, 9, 10, 10,
11, 11, 12, 12, 13,
13, 14, 14, 15, -1};
// for xterm with 88 colors...
static int color_numbers_88[28] = {0, 4, 2, 6,
1, 5, 32, 72,
84, 84, 7, 7,
82, 82,
12, 43, 10, 61,
14, 63, 9, 74, 13,
75, 11, 78, 15, -1};
// for xterm with 256 colors...
static int color_numbers_256[28] = {0, 4, 2, 6,
1, 5, 130, 3,
248, 248, 7, 7,
242, 242,
12, 81, 10, 121,
14, 159, 9, 224, 13,
225, 11, 229, 15, -1};
// for terminals with less than 16 colors...
static int color_numbers_8[28] = {0, 4, 2, 6,
1, 5, 3, 3,
7, 7, 7, 7,
0+8, 0+8,
4+8, 4+8, 2+8, 2+8,
6+8, 6+8, 1+8, 1+8, 5+8,
5+8, 3+8, 3+8, 7+8, -1};
/*
* Lookup the "cterm" value to be used for color with index "idx" in
* color_names[].
* "boldp" will be set to TRUE or FALSE for a foreground color when using 8
* colors, otherwise it will be unchanged.
*/
int
lookup_color(int idx, int foreground, int *boldp)
{
int color = color_numbers_16[idx];
char_u *p;
// Use the _16 table to check if it's a valid color name.
if (color < 0)
return -1;
if (t_colors == 8)
{
// t_Co is 8: use the 8 colors table
#if defined(__QNXNTO__)
// On qnx, the 8 & 16 color arrays are the same
if (STRNCMP(T_NAME, "qansi", 5) == 0)
color = color_numbers_16[idx];
else
#endif
color = color_numbers_8[idx];
if (foreground)
{
// set/reset bold attribute to get light foreground
// colors (on some terminals, e.g. "linux")
if (color & 8)
*boldp = TRUE;
else
*boldp = FALSE;
}
color &= 7; // truncate to 8 colors
}
else if (t_colors == 16 || t_colors == 88
|| t_colors >= 256)
{
// Guess: if the termcap entry ends in 'm', it is
// probably an xterm-like terminal. Use the changed
// order for colors.
if (*T_CAF != NUL)
p = T_CAF;
else
p = T_CSF;
if (*p != NUL && (t_colors > 256
|| *(p + STRLEN(p) - 1) == 'm'))
{
if (t_colors == 88)
color = color_numbers_88[idx];
else if (t_colors >= 256)
color = color_numbers_256[idx];
else
color = color_numbers_8[idx];
}
#ifdef FEAT_TERMRESPONSE
if (t_colors >= 256 && color == 15 && is_mac_terminal)
// Terminal.app has a bug: 15 is light grey. Use white
// from the color cube instead.
color = 231;
#endif
}
return color;
}
/*
* Link highlight group 'from_hg' to 'to_hg'.
* 'dodefault' is set to TRUE for ":highlight default link".
* 'forceit' is set to TRUE for ":higlight! link"
* 'init' is set to TRUE when initializing all the highlight groups.
*/
static void
highlight_group_link(
char_u *from_hg,
int from_len,
char_u *to_hg,
int to_len,
int dodefault,
int forceit,
int init)
{
int from_id;
int to_id;
hl_group_T *hlgroup = NULL;
from_id = syn_check_group(from_hg, from_len);
if (STRNCMP(to_hg, "NONE", 4) == 0)
to_id = 0;
else
to_id = syn_check_group(to_hg, to_len);
if (from_id > 0)
{
hlgroup = &HL_TABLE()[from_id - 1];
if (dodefault && (forceit || hlgroup->sg_deflink == 0))
{
hlgroup->sg_deflink = to_id;
#ifdef FEAT_EVAL
hlgroup->sg_deflink_sctx = current_sctx;
hlgroup->sg_deflink_sctx.sc_lnum += SOURCING_LNUM;
#endif
}
}
if (from_id > 0 && (!init || hlgroup->sg_set == 0))
{
// Don't allow a link when there already is some highlighting
// for the group, unless '!' is used
if (to_id > 0 && !forceit && !init
&& hl_has_settings(from_id - 1, dodefault))
{
if (SOURCING_NAME == NULL && !dodefault)
emsg(_("E414: group has settings, highlight link ignored"));
}
else if (hlgroup->sg_link != to_id
#ifdef FEAT_EVAL
|| hlgroup->sg_script_ctx.sc_sid != current_sctx.sc_sid
#endif
|| hlgroup->sg_cleared)
{
if (!init)
hlgroup->sg_set |= SG_LINK;
hlgroup->sg_link = to_id;
#ifdef FEAT_EVAL
hlgroup->sg_script_ctx = current_sctx;
hlgroup->sg_script_ctx.sc_lnum += SOURCING_LNUM;
#endif
hlgroup->sg_cleared = FALSE;
redraw_all_later(SOME_VALID);
// Only call highlight_changed() once after multiple changes.
need_highlight_changed = TRUE;
}
}
}
/*
* Reset all highlighting to the defaults. Removes all highlighting for the
* groups added by the user.
*/
static void
highlight_reset_all(void)
{
int idx;
#ifdef FEAT_GUI
// First, we do not destroy the old values, but allocate the new
// ones and update the display. THEN we destroy the old values.
// If we destroy the old values first, then the old values
// (such as GuiFont's or GuiFontset's) will still be displayed but
// invalid because they were free'd.
if (gui.in_use)
{
# ifdef FEAT_BEVAL_TIP
gui_init_tooltip_font();
# endif
# if defined(FEAT_MENU) && (defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MOTIF))
gui_init_menu_font();
# endif
}
# if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_X11)
gui_mch_def_colors();
# endif
# ifdef FEAT_GUI_X11
# ifdef FEAT_MENU
// This only needs to be done when there is no Menu highlight
// group defined by default, which IS currently the case.
gui_mch_new_menu_colors();
# endif
if (gui.in_use)
{
gui_new_scrollbar_colors();
# ifdef FEAT_BEVAL_GUI
gui_mch_new_tooltip_colors();
# endif
# ifdef FEAT_MENU
gui_mch_new_menu_font();
# endif
}
# endif
// Ok, we're done allocating the new default graphics items.
// The screen should already be refreshed at this point.
// It is now Ok to clear out the old data.
#endif
#ifdef FEAT_EVAL
do_unlet((char_u *)"g:colors_name", TRUE);
#endif
restore_cterm_colors();
// Clear all default highlight groups and load the defaults.
for (idx = 0; idx < highlight_ga.ga_len; ++idx)
highlight_clear(idx);
init_highlight(TRUE, TRUE);
#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
if (USE_24BIT)
highlight_gui_started();
else
#endif
highlight_changed();
redraw_later_clear();
}
/*
* Set the 'term' or 'cterm' or 'gui' attributes for the highlight group at
* index 'idx'.
* 'key' is one of 'TERM' or 'CTERM' or 'GUI'
* 'arg' is the list of attribute names separated by comma.
* 'init' is set to TRUE when initializing all the highlight groups.
* Returns TRUE if the attributes are set.
*/
static int
highlight_set_termgui_attr(int idx, char_u *key, char_u *arg, int init)
{
int attr;
int off;
long i;
int len;
attr = 0;
off = 0;
while (arg[off] != NUL)
{
for (i = ARRAY_LENGTH(hl_attr_table); --i >= 0; )
{
len = (int)STRLEN(hl_name_table[i]);
if (STRNICMP(arg + off, hl_name_table[i], len) == 0)
{
attr |= hl_attr_table[i];
off += len;
break;
}
}
if (i < 0)
{
semsg(_("E418: Illegal value: %s"), arg);
return FALSE;
}
if (arg[off] == ',') // another one follows
++off;
}
if (*key == 'T')
{
if (!init || !(HL_TABLE()[idx].sg_set & SG_TERM))
{
if (!init)
HL_TABLE()[idx].sg_set |= SG_TERM;
HL_TABLE()[idx].sg_term = attr;
}
}
else if (*key == 'C')
{
if (!init || !(HL_TABLE()[idx].sg_set & SG_CTERM))
{
if (!init)
HL_TABLE()[idx].sg_set |= SG_CTERM;
HL_TABLE()[idx].sg_cterm = attr;
HL_TABLE()[idx].sg_cterm_bold = FALSE;
}
}
#if defined(FEAT_GUI) || defined(FEAT_EVAL)
else
{
if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI))
{
if (!init)
HL_TABLE()[idx].sg_set |= SG_GUI;
HL_TABLE()[idx].sg_gui = attr;
}
}
#endif
return TRUE;
}
#ifdef FEAT_GUI
/*
* Set the font for the highlight group at 'idx'.
* 'arg' is the font name.
* Returns TRUE if the font is changed.
*/
static int
highlight_set_font(
int idx,
char_u *arg,
int is_normal_group,
int is_menu_group,
int is_tooltip_group)
{
int did_change = FALSE;
// in non-GUI fonts are simply ignored
if (HL_TABLE()[idx].sg_font_name != NULL
&& STRCMP(HL_TABLE()[idx].sg_font_name, arg) == 0)
{
// Font name didn't change, ignore.
}
else if (!gui.shell_created)
{
// GUI not started yet, always accept the name.
vim_free(HL_TABLE()[idx].sg_font_name);
HL_TABLE()[idx].sg_font_name = vim_strsave(arg);
did_change = TRUE;
}
else
{
GuiFont temp_sg_font = HL_TABLE()[idx].sg_font;
# ifdef FEAT_XFONTSET
GuiFontset temp_sg_fontset = HL_TABLE()[idx].sg_fontset;
# endif
// First, save the current font/fontset.
// Then try to allocate the font/fontset.
// If the allocation fails, HL_TABLE()[idx].sg_font OR
// sg_fontset will be set to NOFONT or NOFONTSET respectively.
HL_TABLE()[idx].sg_font = NOFONT;
# ifdef FEAT_XFONTSET
HL_TABLE()[idx].sg_fontset = NOFONTSET;
# endif
hl_do_font(idx, arg, is_normal_group, is_menu_group,
is_tooltip_group, FALSE);
# ifdef FEAT_XFONTSET
if (HL_TABLE()[idx].sg_fontset != NOFONTSET)
{
// New fontset was accepted. Free the old one, if there
// was one.
gui_mch_free_fontset(temp_sg_fontset);
vim_free(HL_TABLE()[idx].sg_font_name);
HL_TABLE()[idx].sg_font_name = vim_strsave(arg);
did_change = TRUE;
}
else
HL_TABLE()[idx].sg_fontset = temp_sg_fontset;
# endif
if (HL_TABLE()[idx].sg_font != NOFONT)
{
// New font was accepted. Free the old one, if there was
// one.
gui_mch_free_font(temp_sg_font);
vim_free(HL_TABLE()[idx].sg_font_name);
HL_TABLE()[idx].sg_font_name = vim_strsave(arg);
did_change = TRUE;
}
else
HL_TABLE()[idx].sg_font = temp_sg_font;
}
return did_change;
}
#endif
/*
* Set the cterm foreground color for the highlight group at 'idx' to 'color'.
* Returns TRUE if the foreground color is set.
*/
static void
highlight_set_ctermfg(int idx, int color, int is_normal_group)
{
HL_TABLE()[idx].sg_cterm_fg = color + 1;
if (is_normal_group)
{
cterm_normal_fg_color = color + 1;
cterm_normal_fg_bold = (HL_TABLE()[idx].sg_cterm & HL_BOLD);
#ifdef FEAT_GUI
// Don't do this if the GUI is used.
if (!gui.in_use && !gui.starting)
#endif
{
must_redraw = CLEAR;
if (termcap_active && color >= 0)
term_fg_color(color);
}
}
}
/*
* Set the cterm background color for the highlight group at 'idx' to 'color'.
* Returns TRUE if the background color is set.
*/
static void
highlight_set_ctermbg(int idx, int color, int is_normal_group)
{
HL_TABLE()[idx].sg_cterm_bg = color + 1;
if (is_normal_group)
{
cterm_normal_bg_color = color + 1;
#ifdef FEAT_GUI
// Don't mess with 'background' if the GUI is used.
if (!gui.in_use && !gui.starting)
#endif
{
must_redraw = CLEAR;
if (color >= 0)
{
int dark = -1;
if (termcap_active)
term_bg_color(color);
if (t_colors < 16)
dark = (color == 0 || color == 4);
// Limit the heuristic to the standard 16 colors
else if (color < 16)
dark = (color < 7 || color == 8);
// Set the 'background' option if the value is
// wrong.
if (dark != -1
&& dark != (*p_bg == 'd')
&& !option_was_set((char_u *)"bg"))
{
set_option_value((char_u *)"bg", 0L,
(char_u *)(dark ? "dark" : "light"), 0);
reset_option_was_set((char_u *)"bg");
}
}
}
}
}
/*
* Set the cterm underline color for the highlight group at 'idx' to 'color'.
* Returns TRUE if the underline color is set.
*/
static void
highlight_set_ctermul(int idx, int color, int is_normal_group)
{
HL_TABLE()[idx].sg_cterm_ul = color + 1;
if (is_normal_group)
{
cterm_normal_ul_color = color + 1;
#ifdef FEAT_GUI
// Don't do this if the GUI is used.
if (!gui.in_use && !gui.starting)
#endif
{
must_redraw = CLEAR;
if (termcap_active && color >= 0)
term_ul_color(color);
}
}
}
/*
* Set the cterm fg/bg/ul color for the highlight group at 'idx'.
* 'key' is one of 'CTERMFG' or 'CTERMBG' or 'CTERMUL'.
* 'keystart' is the color name/value.
* 'arg' is the color name or the numeric value as a string.
* 'is_normal_group' is set if the highlight group is 'NORMAL'
* 'init' is set to TRUE when initializing highlighting.
* Called for the ":highlight" command and the "hlset()" function.
*
* Returns TRUE if the color is set.
*/
static int
highlight_set_cterm_color(
int idx,