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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
+
+#define MAX_SYN_NAME 200
+
+/*
+ * 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", "underdouble", "underdotted", "underdashed",
+ "italic", "reverse", "inverse", "nocombine", "strikethrough", "NONE"};
+static int hl_attr_table[] =
+ {HL_BOLD, HL_STANDOUT, HL_UNDERLINE,
+ HL_UNDERCURL, HL_UNDERDOUBLE, HL_UNDERDOTTED, HL_UNDERDASHED,
+ HL_ITALIC, HL_INVERSE, HL_INVERSE, HL_NOCOMBINE, HL_STRIKETHROUGH, 0};
+// length of all attribute names, plus commas, together (and a bit more)
+#define MAX_ATTR_LEN 120
+
+#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",
+ "default link CursorLineSign SignColumn",
+ "default link CursorLineFold FoldColumn",
+ "default link CurSearch 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"),
+ CENT("WildMenu term=standout ctermbg=Yellow ctermfg=Black",
+ "WildMenu term=standout ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black"),
+#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"),
+ CENT("WildMenu term=standout ctermbg=Yellow ctermfg=Black",
+ "WildMenu term=standout ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black"),
+#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
+};
+
+#if defined(FEAT_SYN_HL) || defined(PROTO)
+/*
+ * 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;
+}
+#endif
+
+ 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(_(e_recursive_loop_loading_syncolor_vim));
+ else
+ {
+ ++recursive;
+ (void)source_runtime((char_u *)"syntax/syncolor.vim", DIP_ALL);
+ --recursive;
+ }
+ }
+#endif
+}
+
+#if defined(FEAT_EVAL) && (defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS))
+/*
+ * Load a default color list. Intended to support legacy color names but allows
+ * the user to override the color values. Only loaded once.
+ */
+ static void
+load_default_colors_lists(void)
+{
+ // Lacking a default color list isn't the end of the world but it is likely
+ // an inconvenience so users should know when it is missing.
+ if (source_runtime((char_u *)"colors/lists/default.vim", DIP_ALL) != OK)
+ msg("failed to load colors/lists/default.vim");
+}
+#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);
+ if (retval == OK)
+ 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.
+ */
+ static 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 ":highlight! 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(_(e_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(UPD_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_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(_(e_illegal_value_str), 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 Normal highlight group to "color" and
+ * the bold attribute to "bold".
+ */
+ static void
+hl_set_ctermfg_normal_group(int color, int bold)
+{
+ cterm_normal_fg_color = color + 1;
+ cterm_normal_fg_bold = bold;
+#ifdef FEAT_GUI
+ // Don't do this if the GUI is used.
+ if (!gui.in_use && !gui.starting)
+#endif
+ {
+ set_must_redraw(UPD_CLEAR);
+ if (termcap_active && color >= 0)
+ term_fg_color(color);
+ }
+}
+
+/*
+ * Set the cterm foreground color for the highlight group at 'idx' to 'color'.
+ */
+ 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)
+ hl_set_ctermfg_normal_group(color,
+ (HL_TABLE()[idx].sg_cterm & HL_BOLD));
+}
+
+/*
+ * Set the cterm background color for the Normal highlight group to "color".
+ */
+ static void
+hl_set_ctermbg_normal_group(int color)
+{
+ 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
+ {
+ set_must_redraw(UPD_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_give_err((char_u *)"bg",
+ 0L, (char_u *)(dark ? "dark" : "light"), 0);
+ reset_option_was_set((char_u *)"bg");
+ }
+ }
+ }
+}
+
+/*
+ * Set the cterm background color for the highlight group at 'idx' to 'color'.
+ */
+ 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)
+ hl_set_ctermbg_normal_group(color);
+}
+
+/*
+ * Set the cterm underline color for the Normal highlight group to "color".
+ */
+ static void
+hl_set_ctermul_normal_group(int color)
+{
+ 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
+ {
+ set_must_redraw(UPD_CLEAR);
+ if (termcap_active && color >= 0)
+ term_ul_color(color);
+ }
+}
+
+/*
+ * Set the cterm underline color for the highlight group at 'idx' to 'color'.
+ */
+ 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)
+ hl_set_ctermul_normal_group(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,
+ char_u *key,
+ char_u *key_start,
+ char_u *arg,
+ int is_normal_group,
+ int init)
+{
+ int color;
+ long i;
+ int off;
+
+ if (init && (HL_TABLE()[idx].sg_set & SG_CTERM))
+ return FALSE;
+
+ if (!init)
+ HL_TABLE()[idx].sg_set |= SG_CTERM;
+
+ // When setting the foreground color, and previously the "bold"
+ // flag was set for a light color, reset it now
+ if (key[5] == 'F' && HL_TABLE()[idx].sg_cterm_bold)
+ {
+ HL_TABLE()[idx].sg_cterm &= ~HL_BOLD;
+ HL_TABLE()[idx].sg_cterm_bold = FALSE;
+ }
+
+ if (VIM_ISDIGIT(*arg))
+ color = atoi((char *)arg);
+ else if (STRICMP(arg, "fg") == 0)
+ {
+ if (cterm_normal_fg_color)
+ color = cterm_normal_fg_color - 1;
+ else
+ {
+ emsg(_(e_fg_color_unknown));
+ return FALSE;
+ }
+ }
+ else if (STRICMP(arg, "bg") == 0)
+ {
+ if (cterm_normal_bg_color > 0)
+ color = cterm_normal_bg_color - 1;
+ else
+ {
+ emsg(_(e_bg_color_unknown));
+ return FALSE;
+ }
+ }
+ else if (STRICMP(arg, "ul") == 0)
+ {
+ if (cterm_normal_ul_color > 0)
+ color = cterm_normal_ul_color - 1;
+ else
+ {
+ emsg(_(e_ul_color_unknown));
+ return FALSE;
+ }
+ }
+ else
+ {
+ int bold = MAYBE;
+
+ // reduce calls to STRICMP a bit, it can be slow
+ off = TOUPPER_ASC(*arg);
+ for (i = ARRAY_LENGTH(color_names); --i >= 0; )
+ if (off == color_names[i][0]
+ && STRICMP(arg + 1, color_names[i] + 1) == 0)
+ break;
+ if (i < 0)
+ {
+ semsg(_(e_color_name_or_number_not_recognized_str), key_start);
+ return FALSE;
+ }
+
+ color = lookup_color(i, key[5] == 'F', &bold);
+
+ // set/reset bold attribute to get light foreground
+ // colors (on some terminals, e.g. "linux")
+ if (bold == TRUE)
+ {
+ HL_TABLE()[idx].sg_cterm |= HL_BOLD;
+ HL_TABLE()[idx].sg_cterm_bold = TRUE;
+ }
+ else if (bold == FALSE)
+ HL_TABLE()[idx].sg_cterm &= ~HL_BOLD;
+ }
+
+ // Add one to the argument, to avoid zero. Zero is used for
+ // "NONE", then "color" is -1.
+ if (key[5] == 'F')
+ highlight_set_ctermfg(idx, color, is_normal_group);
+ else if (key[5] == 'B')
+ highlight_set_ctermbg(idx, color, is_normal_group);
+ else // ctermul
+ highlight_set_ctermul(idx, color, is_normal_group);
+
+ return TRUE;
+}
+
+#if defined(FEAT_GUI) || defined(FEAT_EVAL)
+/*
+ * Set the GUI foreground color for the highlight group at 'idx'.
+ * Returns TRUE if the color is set.
+ */
+ static int
+highlight_set_guifg(
+ int idx,
+ char_u *arg,
+ int is_menu_group UNUSED,
+ int is_scrollbar_group UNUSED,
+ int is_tooltip_group UNUSED,
+ int *do_colors UNUSED,
+ int init)
+{
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ long i;
+# endif
+ char_u **namep;
+ int did_change = FALSE;
+
+ if (init && (HL_TABLE()[idx].sg_set & SG_GUI))
+ return FALSE;
+
+ namep = &HL_TABLE()[idx].sg_gui_fg_name;
+ if (!init)
+ HL_TABLE()[idx].sg_set |= SG_GUI;
+
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ // In GUI guifg colors are only used when recognized
+ i = color_name2handle(arg);
+ if (i != INVALCOLOR || STRCMP(arg, "NONE") == 0 || !USE_24BIT)
+ {
+ HL_TABLE()[idx].sg_gui_fg = i;
+# endif
+ if (*namep == NULL || STRCMP(*namep, arg) != 0)
+ {
+ vim_free(*namep);
+ if (STRCMP(arg, "NONE") != 0)
+ *namep = vim_strsave(arg);
+ else
+ *namep = NULL;
+ did_change = TRUE;
+ }
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+# ifdef FEAT_GUI_X11
+ if (is_menu_group && gui.menu_fg_pixel != i)
+ {
+ gui.menu_fg_pixel = i;
+ *do_colors = TRUE;
+ }
+ if (is_scrollbar_group && gui.scroll_fg_pixel != i)
+ {
+ gui.scroll_fg_pixel = i;
+ *do_colors = TRUE;
+ }
+# ifdef FEAT_BEVAL_GUI
+ if (is_tooltip_group && gui.tooltip_fg_pixel != i)
+ {
+ gui.tooltip_fg_pixel = i;
+ *do_colors = TRUE;
+ }
+# endif
+# endif
+ }
+# endif
+
+ return did_change;
+}
+
+/*
+ * Set the GUI background color for the highlight group at 'idx'.
+ * Returns TRUE if the color is set.
+ */
+ static int
+highlight_set_guibg(
+ int idx,
+ char_u *arg,
+ int is_menu_group UNUSED,
+ int is_scrollbar_group UNUSED,
+ int is_tooltip_group UNUSED,
+ int *do_colors UNUSED,
+ int init)
+{
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ int i;
+# endif
+ char_u **namep;
+ int did_change = FALSE;
+
+ if (init && (HL_TABLE()[idx].sg_set & SG_GUI))
+ return FALSE;
+
+ namep = &HL_TABLE()[idx].sg_gui_bg_name;
+ if (!init)
+ HL_TABLE()[idx].sg_set |= SG_GUI;
+
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ // In GUI guibg colors are only used when recognized
+ i = color_name2handle(arg);
+ if (i != INVALCOLOR || STRCMP(arg, "NONE") == 0 || !USE_24BIT)
+ {
+ HL_TABLE()[idx].sg_gui_bg = i;
+# endif
+ if (*namep == NULL || STRCMP(*namep, arg) != 0)
+ {
+ vim_free(*namep);
+ if (STRCMP(arg, "NONE") != 0)
+ *namep = vim_strsave(arg);
+ else
+ *namep = NULL;
+ did_change = TRUE;
+ }
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+# ifdef FEAT_GUI_X11
+ if (is_menu_group && gui.menu_bg_pixel != i)
+ {
+ gui.menu_bg_pixel = i;
+ *do_colors = TRUE;
+ }
+ if (is_scrollbar_group && gui.scroll_bg_pixel != i)
+ {
+ gui.scroll_bg_pixel = i;
+ *do_colors = TRUE;
+ }
+# ifdef FEAT_BEVAL_GUI
+ if (is_tooltip_group && gui.tooltip_bg_pixel != i)
+ {
+ gui.tooltip_bg_pixel = i;
+ *do_colors = TRUE;
+ }
+# endif
+# endif
+ }
+# endif
+
+ return did_change;
+}
+
+/*
+ * Set the GUI undercurl/strikethrough color for the highlight group at 'idx'.
+ * Returns TRUE if the color is set.
+ */
+ static int
+highlight_set_guisp(int idx, char_u *arg, int init)
+{
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ int i;
+# endif
+ int did_change = FALSE;
+ char_u **namep;
+
+ if (init && (HL_TABLE()[idx].sg_set & SG_GUI))
+ return FALSE;
+
+ namep = &HL_TABLE()[idx].sg_gui_sp_name;
+ if (!init)
+ HL_TABLE()[idx].sg_set |= SG_GUI;
+
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ // In GUI guisp colors are only used when recognized
+ i = color_name2handle(arg);
+ if (i != INVALCOLOR || STRCMP(arg, "NONE") == 0 || !USE_24BIT)
+ {
+ HL_TABLE()[idx].sg_gui_sp = i;
+# endif
+ if (*namep == NULL || STRCMP(*namep, arg) != 0)
+ {
+ vim_free(*namep);
+ if (STRCMP(arg, "NONE") != 0)
+ *namep = vim_strsave(arg);
+ else
+ *namep = NULL;
+ did_change = TRUE;
+ }
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ }
+# endif
+
+ return did_change;
+}
+#endif
+
+/*
+ * Set the start/stop terminal codes for a highlight group.
+ * Returns TRUE if the terminal code is set.
+ */
+ static int
+highlight_set_startstop_termcode(int idx, char_u *key, char_u *arg, int init)
+{
+ int off;
+ char_u buf[100];
+ int len;
+ char_u *tname;
+ char_u *p;
+
+ if (!init)
+ HL_TABLE()[idx].sg_set |= SG_TERM;
+
+ // The "start" and "stop" arguments can be a literal escape
+ // sequence, or a comma separated list of terminal codes.
+ if (STRNCMP(arg, "t_", 2) == 0)
+ {
+ off = 0;
+ buf[0] = 0;
+ while (arg[off] != NUL)
+ {
+ // Isolate one termcap name
+ for (len = 0; arg[off + len] &&
+ arg[off + len] != ','; ++len)
+ ;
+ tname = vim_strnsave(arg + off, len);
+ if (tname == NULL) // out of memory
+ return FALSE;
+ // lookup the escape sequence for the item
+ p = get_term_code(tname);
+ vim_free(tname);
+ if (p == NULL) // ignore non-existing things
+ p = (char_u *)"";
+
+ // Append it to the already found stuff
+ if ((int)(STRLEN(buf) + STRLEN(p)) >= 99)
+ {
+ semsg(_(e_terminal_code_too_long_str), arg);
+ return FALSE;
+ }
+ STRCAT(buf, p);
+
+ // Advance to the next item
+ off += len;
+ if (arg[off] == ',') // another one follows
+ ++off;
+ }
+ }
+ else
+ {
+ // Copy characters from arg[] to buf[], translating <> codes.
+ for (p = arg, off = 0; off < 100 - 6 && *p; )
+ {
+ len = trans_special(&p, buf + off, FSK_SIMPLIFY, FALSE, NULL);
+ if (len > 0) // recognized special char
+ off += len;
+ else // copy as normal char
+ buf[off++] = *p++;
+ }
+ buf[off] = NUL;
+ }
+
+ if (STRCMP(buf, "NONE") == 0) // resetting the value
+ p = NULL;
+ else
+ p = vim_strsave(buf);
+ if (key[2] == 'A')
+ {
+ vim_free(HL_TABLE()[idx].sg_start);
+ HL_TABLE()[idx].sg_start = p;
+ }
+ else
+ {
+ vim_free(HL_TABLE()[idx].sg_stop);
+ HL_TABLE()[idx].sg_stop = p;
+ }
+ return TRUE;
+}
+
+/*
+ * Handle the ":highlight .." command.
+ * When using ":hi clear" this is called recursively for each group with
+ * "forceit" and "init" both TRUE.
+ */
+ void
+do_highlight(
+ char_u *line,
+ int forceit,
+ int init) // TRUE when called for initializing
+{
+ char_u *name_end;
+ char_u *linep;
+ char_u *key_start;
+ char_u *arg_start;
+ char_u *key = NULL, *arg = NULL;
+ long i;
+ int id;
+ int idx;
+ hl_group_T item_before;
+ int did_change = FALSE;
+ int dodefault = FALSE;
+ int doclear = FALSE;
+ int dolink = FALSE;
+ int error = FALSE;
+ int is_normal_group = FALSE; // "Normal" group
+#ifdef FEAT_GUI_X11
+ int is_menu_group = FALSE; // "Menu" group
+ int is_scrollbar_group = FALSE; // "Scrollbar" group
+ int is_tooltip_group = FALSE; // "Tooltip" group
+#else
+# define is_menu_group 0
+# define is_tooltip_group 0
+# define is_scrollbar_group 0
+#endif
+#if defined(FEAT_GUI) || defined(FEAT_EVAL)
+ int do_colors = FALSE; // need to update colors?
+#endif
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ int did_highlight_changed = FALSE;
+#endif
+
+ // If no argument, list current highlighting.
+ if (!init && ends_excmd2(line - 1, line))
+ {
+ for (i = 1; i <= highlight_ga.ga_len && !got_int; ++i)
+ // TODO: only call when the group has attributes set
+ highlight_list_one((int)i);
+ return;
+ }
+
+ // Isolate the name.
+ name_end = skiptowhite(line);
+ linep = skipwhite(name_end);
+
+ // Check for "default" argument.
+ if (STRNCMP(line, "default", name_end - line) == 0)
+ {
+ dodefault = TRUE;
+ line = linep;
+ name_end = skiptowhite(line);
+ linep = skipwhite(name_end);
+ }
+
+ // Check for "clear" or "link" argument.
+ if (STRNCMP(line, "clear", name_end - line) == 0)
+ doclear = TRUE;
+ if (STRNCMP(line, "link", name_end - line) == 0)
+ dolink = TRUE;
+
+ // ":highlight {group-name}": list highlighting for one group.
+ if (!doclear && !dolink && ends_excmd2(line, linep))
+ {
+ id = syn_namen2id(line, (int)(name_end - line));
+ if (id == 0)
+ semsg(_(e_highlight_group_name_not_found_str), line);
+ else
+ highlight_list_one(id);
+ return;
+ }
+
+ // Handle ":highlight link {from} {to}" command.
+ if (dolink)
+ {
+ char_u *from_start = linep;
+ char_u *from_end;
+ int from_len;
+ char_u *to_start;
+ char_u *to_end;
+ int to_len;
+
+ from_end = skiptowhite(from_start);
+ to_start = skipwhite(from_end);
+ to_end = skiptowhite(to_start);
+
+ if (ends_excmd2(line, from_start) || ends_excmd2(line, to_start))
+ {
+ semsg(_(e_not_enough_arguments_highlight_link_str), from_start);
+ return;
+ }
+
+ if (!ends_excmd2(line, skipwhite(to_end)))
+ {
+ semsg(_(e_too_many_arguments_highlight_link_str), from_start);
+ return;
+ }
+
+ from_len = (int)(from_end - from_start);
+ to_len = (int)(to_end - to_start);
+ highlight_group_link(from_start, from_len, to_start, to_len,
+ dodefault, forceit, init);
+ return;
+ }
+
+ if (doclear)
+ {
+ // ":highlight clear [group]" command.
+ if (ends_excmd2(line, linep))
+ {
+ // ":highlight clear" without group name
+ highlight_reset_all();
+ return;
+ }
+ line = linep;
+ name_end = skiptowhite(line);
+ linep = skipwhite(name_end);
+ }
+
+ // Find the group name in the table. If it does not exist yet, add it.
+ id = syn_check_group(line, (int)(name_end - line));
+ if (id == 0) // failed (out of memory)
+ return;
+ idx = id - 1; // index is ID minus one
+
+ // Return if "default" was used and the group already has settings.
+ if (dodefault && hl_has_settings(idx, TRUE))
+ return;
+
+ // Make a copy so we can check if any attribute actually changed.
+ item_before = HL_TABLE()[idx];
+
+ if (STRCMP(HL_TABLE()[idx].sg_name_u, "NORMAL") == 0)
+ is_normal_group = TRUE;
+#ifdef FEAT_GUI_X11
+ else if (STRCMP(HL_TABLE()[idx].sg_name_u, "MENU") == 0)
+ is_menu_group = TRUE;
+ else if (STRCMP(HL_TABLE()[idx].sg_name_u, "SCROLLBAR") == 0)
+ is_scrollbar_group = TRUE;
+ else if (STRCMP(HL_TABLE()[idx].sg_name_u, "TOOLTIP") == 0)
+ is_tooltip_group = TRUE;
+#endif
+
+ // Clear the highlighting for ":hi clear {group}" and ":hi clear".
+ if (doclear || (forceit && init))
+ {
+ highlight_clear(idx);
+ if (!doclear)
+ HL_TABLE()[idx].sg_set = 0;
+ }
+
+ if (!doclear)
+ while (!ends_excmd2(line, linep))
+ {
+ key_start = linep;
+ if (*linep == '=')
+ {
+ semsg(_(e_unexpected_equal_sign_str), key_start);
+ error = TRUE;
+ break;
+ }
+
+ // Isolate the key ("term", "ctermfg", "ctermbg", "font", "guifg"
+ // or "guibg").
+ while (*linep && !VIM_ISWHITE(*linep) && *linep != '=')
+ ++linep;
+ vim_free(key);
+ key = vim_strnsave_up(key_start, linep - key_start);
+ if (key == NULL)
+ {
+ error = TRUE;
+ break;
+ }
+ linep = skipwhite(linep);
+
+ if (STRCMP(key, "NONE") == 0)
+ {
+ if (!init || HL_TABLE()[idx].sg_set == 0)
+ {
+ if (!init)
+ HL_TABLE()[idx].sg_set |= SG_TERM+SG_CTERM+SG_GUI;
+ highlight_clear(idx);
+ }
+ continue;
+ }
+
+ // Check for the equal sign.
+ if (*linep != '=')
+ {
+ semsg(_(e_missing_equal_sign_str_2), key_start);
+ error = TRUE;
+ break;
+ }
+ ++linep;
+
+ // Isolate the argument.
+ linep = skipwhite(linep);
+ if (*linep == '\'') // guifg='color name'
+ {
+ arg_start = ++linep;
+ linep = vim_strchr(linep, '\'');
+ if (linep == NULL)
+ {
+ semsg(_(e_invalid_argument_str), key_start);
+ error = TRUE;
+ break;
+ }
+ }
+ else
+ {
+ arg_start = linep;
+ linep = skiptowhite(linep);
+ }
+ if (linep == arg_start)
+ {
+ semsg(_(e_missing_argument_str), key_start);
+ error = TRUE;
+ break;
+ }
+ vim_free(arg);
+ arg = vim_strnsave(arg_start, linep - arg_start);
+ if (arg == NULL)
+ {
+ error = TRUE;
+ break;
+ }
+ if (*linep == '\'')
+ ++linep;
+
+ // Store the argument.
+ if (STRCMP(key, "TERM") == 0
+ || STRCMP(key, "CTERM") == 0
+ || STRCMP(key, "GUI") == 0)
+ {
+ if (!highlight_set_termgui_attr(idx, key, arg, init))
+ {
+ error = TRUE;
+ break;
+ }
+ }
+ else if (STRCMP(key, "FONT") == 0)
+ {
+ // in non-GUI fonts are simply ignored
+#ifdef FEAT_GUI
+ if (highlight_set_font(idx, arg, is_normal_group,
+ is_menu_group, is_tooltip_group))
+ did_change = TRUE;
+#endif
+ }
+ else if (STRCMP(key, "CTERMFG") == 0
+ || STRCMP(key, "CTERMBG") == 0
+ || STRCMP(key, "CTERMUL") == 0)
+ {
+ if (!highlight_set_cterm_color(idx, key, key_start, arg,
+ is_normal_group, init))
+ {
+ error = TRUE;
+ break;
+ }
+ }
+ else if (STRCMP(key, "GUIFG") == 0)
+ {
+#if defined(FEAT_GUI) || defined(FEAT_EVAL)
+ if (highlight_set_guifg(idx, arg, is_menu_group,
+ is_scrollbar_group, is_tooltip_group,
+ &do_colors, init))
+ did_change = TRUE;
+#endif
+ }
+ else if (STRCMP(key, "GUIBG") == 0)
+ {
+#if defined(FEAT_GUI) || defined(FEAT_EVAL)
+ if (highlight_set_guibg(idx, arg, is_menu_group,
+ is_scrollbar_group, is_tooltip_group,
+ &do_colors, init))
+ did_change = TRUE;
+#endif
+ }
+ else if (STRCMP(key, "GUISP") == 0)
+ {
+#if defined(FEAT_GUI) || defined(FEAT_EVAL)
+ if (highlight_set_guisp(idx, arg, init))
+ did_change = TRUE;
+#endif
+ }
+ else if (STRCMP(key, "START") == 0 || STRCMP(key, "STOP") == 0)
+ {
+ if (!highlight_set_startstop_termcode(idx, key, arg, init))
+ {
+ error = TRUE;
+ break;
+ }
+ }
+ else
+ {
+ semsg(_(e_illegal_argument_str_3), key_start);
+ error = TRUE;
+ break;
+ }
+ HL_TABLE()[idx].sg_cleared = FALSE;
+
+ // When highlighting has been given for a group, don't link it.
+ if (!init || !(HL_TABLE()[idx].sg_set & SG_LINK))
+ HL_TABLE()[idx].sg_link = 0;
+
+ // Continue with next argument.
+ linep = skipwhite(linep);
+ }
+
+ // If there is an error, and it's a new entry, remove it from the table.
+ if (error && idx == highlight_ga.ga_len)
+ syn_unadd_group();
+ else
+ {
+ if (is_normal_group)
+ {
+ HL_TABLE()[idx].sg_term_attr = 0;
+ HL_TABLE()[idx].sg_cterm_attr = 0;
+#ifdef FEAT_GUI
+ HL_TABLE()[idx].sg_gui_attr = 0;
+ // Need to update all groups, because they might be using "bg"
+ // and/or "fg", which have been changed now.
+#endif
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ if (USE_24BIT)
+ {
+ highlight_gui_started();
+ did_highlight_changed = TRUE;
+ redraw_all_later(UPD_NOT_VALID);
+ }
+#endif
+#ifdef FEAT_VTP
+ control_console_color_rgb();
+#endif
+ }
+#ifdef FEAT_GUI_X11
+# ifdef FEAT_MENU
+ else if (is_menu_group)
+ {
+ if (gui.in_use && do_colors)
+ gui_mch_new_menu_colors();
+ }
+# endif
+ else if (is_scrollbar_group)
+ {
+ if (gui.in_use && do_colors)
+ gui_new_scrollbar_colors();
+ else
+ set_hl_attr(idx);
+ }
+# ifdef FEAT_BEVAL_GUI
+ else if (is_tooltip_group)
+ {
+ if (gui.in_use && do_colors)
+ gui_mch_new_tooltip_colors();
+ }
+# endif
+#endif
+ else
+ set_hl_attr(idx);
+#ifdef FEAT_EVAL
+ HL_TABLE()[idx].sg_script_ctx = current_sctx;
+ HL_TABLE()[idx].sg_script_ctx.sc_lnum += SOURCING_LNUM;
+#endif
+ }
+
+ vim_free(key);
+ vim_free(arg);
+
+ // Only call highlight_changed() once, after a sequence of highlight
+ // commands, and only if an attribute actually changed.
+ if ((did_change
+ || memcmp(&HL_TABLE()[idx], &item_before, sizeof(item_before)) != 0)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ && !did_highlight_changed
+#endif
+ )
+ {
+ // Do not trigger a redraw when highlighting is changed while
+ // redrawing. This may happen when evaluating 'statusline' changes the
+ // StatusLine group.
+ if (!updating_screen)
+ redraw_all_later(UPD_NOT_VALID);
+ need_highlight_changed = TRUE;
+ }
+}
+
+#if defined(EXITFREE) || defined(PROTO)
+ void
+free_highlight(void)
+{
+ int i;
+
+ for (i = 0; i < highlight_ga.ga_len; ++i)
+ {
+ highlight_clear(i);
+ vim_free(HL_TABLE()[i].sg_name);
+ vim_free(HL_TABLE()[i].sg_name_u);
+ }
+ ga_clear(&highlight_ga);
+}
+#endif
+
+/*
+ * Reset the cterm colors to what they were before Vim was started, if
+ * possible. Otherwise reset them to zero.
+ */
+ void
+restore_cterm_colors(void)
+{
+#if defined(MSWIN) && !defined(FEAT_GUI_MSWIN)
+ // Since t_me has been set, this probably means that the user
+ // wants to use this as default colors. Need to reset default
+ // background/foreground colors.
+ mch_set_normal_colors();
+#else
+# ifdef VIMDLL
+ if (!gui.in_use)
+ {
+ mch_set_normal_colors();
+ return;
+ }
+# endif
+ cterm_normal_fg_color = 0;
+ cterm_normal_fg_bold = 0;
+ cterm_normal_bg_color = 0;
+# ifdef FEAT_TERMGUICOLORS
+ cterm_normal_fg_gui_color = INVALCOLOR;
+ cterm_normal_bg_gui_color = INVALCOLOR;
+ cterm_normal_ul_gui_color = INVALCOLOR;
+# endif
+#endif
+}
+
+/*
+ * Return TRUE if highlight group "idx" has any settings.
+ * When "check_link" is TRUE also check for an existing link.
+ */
+ static int
+hl_has_settings(int idx, int check_link)
+{
+ return HL_TABLE()[idx].sg_cleared == 0
+ && ( HL_TABLE()[idx].sg_term_attr != 0
+ || HL_TABLE()[idx].sg_cterm_attr != 0
+ || HL_TABLE()[idx].sg_cterm_fg != 0
+ || HL_TABLE()[idx].sg_cterm_bg != 0
+#ifdef FEAT_GUI
+ || HL_TABLE()[idx].sg_gui_attr != 0
+ || HL_TABLE()[idx].sg_gui_fg_name != NULL
+ || HL_TABLE()[idx].sg_gui_bg_name != NULL
+ || HL_TABLE()[idx].sg_gui_sp_name != NULL
+ || HL_TABLE()[idx].sg_font_name != NULL
+#endif
+ || (check_link && (HL_TABLE()[idx].sg_set & SG_LINK)));
+}
+
+/*
+ * Clear highlighting for one group.
+ */
+ static void
+highlight_clear(int idx)
+{
+ HL_TABLE()[idx].sg_cleared = TRUE;
+
+ HL_TABLE()[idx].sg_term = 0;
+ VIM_CLEAR(HL_TABLE()[idx].sg_start);
+ VIM_CLEAR(HL_TABLE()[idx].sg_stop);
+ HL_TABLE()[idx].sg_term_attr = 0;
+ HL_TABLE()[idx].sg_cterm = 0;
+ HL_TABLE()[idx].sg_cterm_bold = FALSE;
+ HL_TABLE()[idx].sg_cterm_fg = 0;
+ HL_TABLE()[idx].sg_cterm_bg = 0;
+ HL_TABLE()[idx].sg_cterm_attr = 0;
+#if defined(FEAT_GUI) || defined(FEAT_EVAL)
+ HL_TABLE()[idx].sg_gui = 0;
+ VIM_CLEAR(HL_TABLE()[idx].sg_gui_fg_name);
+ VIM_CLEAR(HL_TABLE()[idx].sg_gui_bg_name);
+ VIM_CLEAR(HL_TABLE()[idx].sg_gui_sp_name);
+#endif
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ HL_TABLE()[idx].sg_gui_fg = INVALCOLOR;
+ HL_TABLE()[idx].sg_gui_bg = INVALCOLOR;
+ HL_TABLE()[idx].sg_gui_sp = INVALCOLOR;
+#endif
+#ifdef FEAT_GUI
+ gui_mch_free_font(HL_TABLE()[idx].sg_font);
+ HL_TABLE()[idx].sg_font = NOFONT;
+# ifdef FEAT_XFONTSET
+ gui_mch_free_fontset(HL_TABLE()[idx].sg_fontset);
+ HL_TABLE()[idx].sg_fontset = NOFONTSET;
+# endif
+ VIM_CLEAR(HL_TABLE()[idx].sg_font_name);
+ HL_TABLE()[idx].sg_gui_attr = 0;
+#endif
+ // Restore default link and context if they exist. Otherwise clears.
+ HL_TABLE()[idx].sg_link = HL_TABLE()[idx].sg_deflink;
+#ifdef FEAT_EVAL
+ // Since we set the default link, set the location to where the default
+ // link was set.
+ HL_TABLE()[idx].sg_script_ctx = HL_TABLE()[idx].sg_deflink_sctx;
+#endif
+}
+
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS) || defined(PROTO)
+/*
+ * Set the normal foreground and background colors according to the "Normal"
+ * highlighting group. For X11 also set "Menu", "Scrollbar", and
+ * "Tooltip" colors.
+ */
+ void
+set_normal_colors(void)
+{
+# ifdef FEAT_GUI
+# ifdef FEAT_TERMGUICOLORS
+ if (gui.in_use)
+# endif
+ {
+ if (set_group_colors((char_u *)"Normal",
+ &gui.norm_pixel, &gui.back_pixel,
+ FALSE, TRUE, FALSE))
+ {
+ gui_mch_new_colors();
+ set_must_redraw(UPD_CLEAR);
+ }
+# ifdef FEAT_GUI_X11
+ if (set_group_colors((char_u *)"Menu",
+ &gui.menu_fg_pixel, &gui.menu_bg_pixel,
+ TRUE, FALSE, FALSE))
+ {
+# ifdef FEAT_MENU
+ gui_mch_new_menu_colors();
+# endif
+ set_must_redraw(UPD_CLEAR);
+ }
+# ifdef FEAT_BEVAL_GUI
+ if (set_group_colors((char_u *)"Tooltip",
+ &gui.tooltip_fg_pixel, &gui.tooltip_bg_pixel,
+ FALSE, FALSE, TRUE))
+ {
+# ifdef FEAT_TOOLBAR
+ gui_mch_new_tooltip_colors();
+# endif
+ set_must_redraw(UPD_CLEAR);
+ }
+# endif
+ if (set_group_colors((char_u *)"Scrollbar",
+ &gui.scroll_fg_pixel, &gui.scroll_bg_pixel,
+ FALSE, FALSE, FALSE))
+ {
+ gui_new_scrollbar_colors();
+ set_must_redraw(UPD_CLEAR);
+ }
+# endif
+ }
+# endif
+# ifdef FEAT_TERMGUICOLORS
+# ifdef FEAT_GUI
+ else
+# endif
+ {
+ int idx;
+
+ idx = syn_name2id((char_u *)"Normal") - 1;
+ if (idx >= 0)
+ {
+ gui_do_one_color(idx, FALSE, FALSE);
+
+ // If the normal fg or bg color changed a complete redraw is
+ // required.
+ if (cterm_normal_fg_gui_color != HL_TABLE()[idx].sg_gui_fg
+ || cterm_normal_bg_gui_color != HL_TABLE()[idx].sg_gui_bg)
+ {
+ // if the GUI color is INVALCOLOR then we use the default cterm
+ // color
+ cterm_normal_fg_gui_color = HL_TABLE()[idx].sg_gui_fg;
+ cterm_normal_bg_gui_color = HL_TABLE()[idx].sg_gui_bg;
+ set_must_redraw(UPD_CLEAR);
+ }
+ }
+ }
+# endif
+}
+#endif
+
+#if defined(FEAT_GUI) || defined(PROTO)
+/*
+ * Set the colors for "Normal", "Menu", "Tooltip" or "Scrollbar".
+ */
+ static int
+set_group_colors(
+ char_u *name,
+ guicolor_T *fgp,
+ guicolor_T *bgp,
+ int do_menu,
+ int use_norm,
+ int do_tooltip)
+{
+ int idx;
+
+ idx = syn_name2id(name) - 1;
+ if (idx < 0)
+ return FALSE;
+
+ gui_do_one_color(idx, do_menu, do_tooltip);
+
+ if (HL_TABLE()[idx].sg_gui_fg != INVALCOLOR)
+ *fgp = HL_TABLE()[idx].sg_gui_fg;
+ else if (use_norm)
+ *fgp = gui.def_norm_pixel;
+ if (HL_TABLE()[idx].sg_gui_bg != INVALCOLOR)
+ *bgp = HL_TABLE()[idx].sg_gui_bg;
+ else if (use_norm)
+ *bgp = gui.def_back_pixel;
+ return TRUE;
+}
+
+/*
+ * Get the font of the "Normal" group.
+ * Returns "" when it's not found or not set.
+ */
+ char_u *
+hl_get_font_name(void)
+{
+ int id;
+ char_u *s;
+
+ id = syn_name2id((char_u *)"Normal");
+ if (id > 0)
+ {
+ s = HL_TABLE()[id - 1].sg_font_name;
+ if (s != NULL)
+ return s;
+ }
+ return (char_u *)"";
+}
+
+/*
+ * Set font for "Normal" group. Called by gui_mch_init_font() when a font has
+ * actually chosen to be used.
+ */
+ void
+hl_set_font_name(char_u *font_name)
+{
+ int id;
+
+ id = syn_name2id((char_u *)"Normal");
+ if (id <= 0)
+ return;
+
+ vim_free(HL_TABLE()[id - 1].sg_font_name);
+ HL_TABLE()[id - 1].sg_font_name = vim_strsave(font_name);
+}
+
+/*
+ * Set background color for "Normal" group. Called by gui_set_bg_color()
+ * when the color is known.
+ */
+ void
+hl_set_bg_color_name(
+ char_u *name) // must have been allocated
+{
+ int id;
+
+ if (name == NULL)
+ return;
+
+ id = syn_name2id((char_u *)"Normal");
+ if (id <= 0)
+ return;
+
+ vim_free(HL_TABLE()[id - 1].sg_gui_bg_name);
+ HL_TABLE()[id - 1].sg_gui_bg_name = name;
+}
+
+/*
+ * Set foreground color for "Normal" group. Called by gui_set_fg_color()
+ * when the color is known.
+ */
+ void
+hl_set_fg_color_name(
+ char_u *name) // must have been allocated
+{
+ int id;
+
+ if (name == NULL)
+ return;
+
+ id = syn_name2id((char_u *)"Normal");
+ if (id <= 0)
+ return;
+
+ vim_free(HL_TABLE()[id - 1].sg_gui_fg_name);
+ HL_TABLE()[id - 1].sg_gui_fg_name = name;
+}
+
+/*
+ * Return the handle for a font name.
+ * Returns NOFONT when failed.
+ */
+ static GuiFont
+font_name2handle(char_u *name)
+{
+ if (STRCMP(name, "NONE") == 0)
+ return NOFONT;
+
+ return gui_mch_get_font(name, TRUE);
+}
+
+# ifdef FEAT_XFONTSET
+/*
+ * Return the handle for a fontset name.
+ * Returns NOFONTSET when failed.
+ */
+ static GuiFontset
+fontset_name2handle(char_u *name, int fixed_width)
+{
+ if (STRCMP(name, "NONE") == 0)
+ return NOFONTSET;
+
+ return gui_mch_get_fontset(name, TRUE, fixed_width);
+}
+# endif
+
+/*
+ * Get the font or fontset for one highlight group.
+ */
+ static void
+hl_do_font(
+ int idx,
+ char_u *arg,
+ int do_normal, // set normal font
+ int do_menu UNUSED, // set menu font
+ int do_tooltip UNUSED, // set tooltip font
+ int free_font) // free current font/fontset
+{
+# ifdef FEAT_XFONTSET
+ // If 'guifontset' is not empty, first try using the name as a
+ // fontset. If that doesn't work, use it as a font name.
+ if (*p_guifontset != NUL
+# ifdef FONTSET_ALWAYS
+ || do_menu
+# endif
+# ifdef FEAT_BEVAL_TIP
+ // In Motif, the Tooltip highlight group is always a fontset
+ || do_tooltip
+# endif
+ )
+ {
+ if (free_font)
+ gui_mch_free_fontset(HL_TABLE()[idx].sg_fontset);
+ HL_TABLE()[idx].sg_fontset = fontset_name2handle(arg, 0
+# ifdef FONTSET_ALWAYS
+ || do_menu
+# endif
+# ifdef FEAT_BEVAL_TIP
+ || do_tooltip
+# endif
+ );
+ }
+ if (HL_TABLE()[idx].sg_fontset != NOFONTSET)
+ {
+ // If it worked and it's the Normal group, use it as the normal
+ // fontset. Same for the Menu group.
+ if (do_normal)
+ gui_init_font(arg, TRUE);
+# if defined(FEAT_GUI_MOTIF) && defined(FEAT_MENU)
+ if (do_menu)
+ {
+# ifdef FONTSET_ALWAYS
+ gui.menu_fontset = HL_TABLE()[idx].sg_fontset;
+# else
+ // YIKES! This is a bug waiting to crash the program
+ gui.menu_font = HL_TABLE()[idx].sg_fontset;
+# endif
+ gui_mch_new_menu_font();
+ }
+# ifdef FEAT_BEVAL_GUI
+ if (do_tooltip)
+ {
+ // The Athena widget set could not handle switching between
+ // displaying a single font and a fontset.
+ // If the XtNinternational resource is set to True at widget
+ // creation, then a fontset is always used, otherwise an
+ // XFontStruct is used.
+ gui.tooltip_fontset = (XFontSet)HL_TABLE()[idx].sg_fontset;
+ gui_mch_new_tooltip_font();
+ }
+# endif
+# endif
+ }
+ else
+# endif
+ {
+ if (free_font)
+ gui_mch_free_font(HL_TABLE()[idx].sg_font);
+ HL_TABLE()[idx].sg_font = font_name2handle(arg);
+ // If it worked and it's the Normal group, use it as the
+ // normal font. Same for the Menu group.
+ if (HL_TABLE()[idx].sg_font != NOFONT)
+ {
+ if (do_normal)
+ gui_init_font(arg, FALSE);
+#ifndef FONTSET_ALWAYS
+# if defined(FEAT_GUI_MOTIF) && defined(FEAT_MENU)
+ if (do_menu)
+ {
+ gui.menu_font = HL_TABLE()[idx].sg_font;
+ gui_mch_new_menu_font();
+ }
+# endif
+#endif
+ }
+ }
+}
+
+#endif // FEAT_GUI
+
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS) || defined(PROTO)
+/*
+ * Return the handle for a color name.
+ * Returns INVALCOLOR when failed.
+ */
+ guicolor_T
+color_name2handle(char_u *name)
+{
+ if (STRCMP(name, "NONE") == 0)
+ return INVALCOLOR;
+
+ if (STRICMP(name, "fg") == 0 || STRICMP(name, "foreground") == 0)
+ {
+#if defined(FEAT_TERMGUICOLORS) && defined(FEAT_GUI)
+ if (gui.in_use)
+#endif
+#ifdef FEAT_GUI
+ return gui.norm_pixel;
+#endif
+#ifdef FEAT_TERMGUICOLORS
+ if (cterm_normal_fg_gui_color != INVALCOLOR)
+ return cterm_normal_fg_gui_color;
+ // Guess that the foreground is black or white.
+ return GUI_GET_COLOR((char_u *)(*p_bg == 'l' ? "black" : "white"));
+#endif
+ }
+ if (STRICMP(name, "bg") == 0 || STRICMP(name, "background") == 0)
+ {
+#if defined(FEAT_TERMGUICOLORS) && defined(FEAT_GUI)
+ if (gui.in_use)
+#endif
+#ifdef FEAT_GUI
+ return gui.back_pixel;
+#endif
+#ifdef FEAT_TERMGUICOLORS
+ if (cterm_normal_bg_gui_color != INVALCOLOR)
+ return cterm_normal_bg_gui_color;
+ // Guess that the background is white or black.
+ return GUI_GET_COLOR((char_u *)(*p_bg == 'l' ? "white" : "black"));
+#endif
+ }
+
+ return GUI_GET_COLOR(name);
+}
+
+// On MS-Windows an RGB macro is available and it produces 0x00bbggrr color
+// values as used by the MS-Windows GDI api. It should be used only for
+// MS-Windows GDI builds.
+# if defined(RGB) && defined(MSWIN) && !defined(FEAT_GUI)
+# undef RGB
+# endif
+# ifndef RGB
+# define RGB(r, g, b) (((r)<<16) | ((g)<<8) | (b))
+# endif
+
+# ifdef VIMDLL
+ static guicolor_T
+gui_adjust_rgb(guicolor_T c)
+{
+ if (gui.in_use)
+ return c;
+ else
+ return ((c & 0xff) << 16) | (c & 0x00ff00) | ((c >> 16) & 0xff);
+}
+# else
+# define gui_adjust_rgb(c) (c)
+# endif
+
+ static int
+hex_digit(int c)
+{
+ if (isdigit(c))
+ return c - '0';
+ c = TOLOWER_ASC(c);
+ if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+ return 0x1ffffff;
+}
+
+ static guicolor_T
+decode_hex_color(char_u *hex)
+{
+ guicolor_T color;
+
+ if (hex[0] != '#' || STRLEN(hex) != 7)
+ return INVALCOLOR;
+
+ // Name is in "#rrggbb" format
+ color = RGB(((hex_digit(hex[1]) << 4) + hex_digit(hex[2])),
+ ((hex_digit(hex[3]) << 4) + hex_digit(hex[4])),
+ ((hex_digit(hex[5]) << 4) + hex_digit(hex[6])));
+ if (color > 0xffffff)
+ return INVALCOLOR;
+ return gui_adjust_rgb(color);
+}
+
+#ifdef FEAT_EVAL
+// Returns the color currently mapped to the given name or INVALCOLOR if no
+// such name exists in the color table. The convention is to use lowercase for
+// all keys in the v:colornames dictionary. The value can be either a string in
+// the form #rrggbb or a number, either of which is converted to a guicolor_T.
+ static guicolor_T
+colorname2rgb(char_u *name)
+{
+ dict_T *colornames_table = get_vim_var_dict(VV_COLORNAMES);
+ char_u *lc_name;
+ dictitem_T *colentry;
+ char_u *colstr;
+ varnumber_T colnum;
+
+ lc_name = strlow_save(name);
+ if (lc_name == NULL)
+ return INVALCOLOR;
+
+ colentry = dict_find(colornames_table, lc_name, -1);
+ vim_free(lc_name);
+ if (colentry == NULL)
+ return INVALCOLOR;
+
+ if (colentry->di_tv.v_type == VAR_STRING)
+ {
+ colstr = tv_get_string_strict(&colentry->di_tv);
+ if ((STRLEN(colstr) == 7) && (*colstr == '#'))
+ {
+ return decode_hex_color(colstr);
+ }
+ else
+ {
+ semsg(_(e_bad_color_string_str), colstr);
+ return INVALCOLOR;
+ }
+ }
+
+ if (colentry->di_tv.v_type == VAR_NUMBER)
+ {
+ colnum = tv_get_number(&colentry->di_tv);
+ return (guicolor_T)colnum;
+ }
+
+ return INVALCOLOR;
+}
+
+#endif
+
+ guicolor_T
+gui_get_color_cmn(char_u *name)
+{
+ int i;
+ guicolor_T color;
+
+ struct rgbcolor_table_S {
+ char_u *color_name;
+ guicolor_T color;
+ };
+
+ // Only non X11 colors (not present in rgb.txt) and colors in
+ // color_names[], useful when $VIMRUNTIME is not found,.
+ static struct rgbcolor_table_S rgb_table[] = {
+ {(char_u *)"black", RGB(0x00, 0x00, 0x00)},
+ {(char_u *)"blue", RGB(0x00, 0x00, 0xFF)},
+ {(char_u *)"brown", RGB(0xA5, 0x2A, 0x2A)},
+ {(char_u *)"cyan", RGB(0x00, 0xFF, 0xFF)},
+ {(char_u *)"darkblue", RGB(0x00, 0x00, 0x8B)},
+ {(char_u *)"darkcyan", RGB(0x00, 0x8B, 0x8B)},
+ {(char_u *)"darkgray", RGB(0xA9, 0xA9, 0xA9)},
+ {(char_u *)"darkgreen", RGB(0x00, 0x64, 0x00)},
+ {(char_u *)"darkgrey", RGB(0xA9, 0xA9, 0xA9)},
+ {(char_u *)"darkmagenta", RGB(0x8B, 0x00, 0x8B)},
+ {(char_u *)"darkred", RGB(0x8B, 0x00, 0x00)},
+ {(char_u *)"darkyellow", RGB(0x8B, 0x8B, 0x00)}, // No X11
+ {(char_u *)"gray", RGB(0xBE, 0xBE, 0xBE)},
+ {(char_u *)"green", RGB(0x00, 0xFF, 0x00)},
+ {(char_u *)"grey", RGB(0xBE, 0xBE, 0xBE)},
+ {(char_u *)"grey40", RGB(0x66, 0x66, 0x66)},
+ {(char_u *)"grey50", RGB(0x7F, 0x7F, 0x7F)},
+ {(char_u *)"grey90", RGB(0xE5, 0xE5, 0xE5)},
+ {(char_u *)"lightblue", RGB(0xAD, 0xD8, 0xE6)},
+ {(char_u *)"lightcyan", RGB(0xE0, 0xFF, 0xFF)},
+ {(char_u *)"lightgray", RGB(0xD3, 0xD3, 0xD3)},
+ {(char_u *)"lightgreen", RGB(0x90, 0xEE, 0x90)},
+ {(char_u *)"lightgrey", RGB(0xD3, 0xD3, 0xD3)},
+ {(char_u *)"lightmagenta", RGB(0xFF, 0x8B, 0xFF)}, // No X11
+ {(char_u *)"lightred", RGB(0xFF, 0x8B, 0x8B)}, // No X11
+ {(char_u *)"lightyellow", RGB(0xFF, 0xFF, 0xE0)},
+ {(char_u *)"magenta", RGB(0xFF, 0x00, 0xFF)},
+ {(char_u *)"red", RGB(0xFF, 0x00, 0x00)},
+ {(char_u *)"seagreen", RGB(0x2E, 0x8B, 0x57)},
+ {(char_u *)"white", RGB(0xFF, 0xFF, 0xFF)},
+ {(char_u *)"yellow", RGB(0xFF, 0xFF, 0x00)},
+ };
+
+ color = decode_hex_color(name);
+ if (color != INVALCOLOR)
+ return color;
+
+ // Check if the name is one of the colors we know
+ for (i = 0; i < (int)ARRAY_LENGTH(rgb_table); i++)
+ if (STRICMP(name, rgb_table[i].color_name) == 0)
+ return gui_adjust_rgb(rgb_table[i].color);
+
+#if defined(FEAT_EVAL)
+ /*
+ * Not a traditional color. Load additional color aliases and then consult the alias table.
+ */
+
+ color = colorname2rgb(name);
+ if (color == INVALCOLOR)
+ {
+ load_default_colors_lists();
+ color = colorname2rgb(name);
+ }
+
+ return color;
+#else
+ return INVALCOLOR;
+#endif
+}
+
+ guicolor_T
+gui_get_rgb_color_cmn(int r, int g, int b)
+{
+ guicolor_T color = RGB(r, g, b);
+
+ if (color > 0xffffff)
+ return INVALCOLOR;
+ return gui_adjust_rgb(color);
+}
+#endif
+
+/*
+ * Table with the specifications for an attribute number.
+ * Note that this table is used by ALL buffers. This is required because the
+ * GUI can redraw at any time for any buffer.
+ */
+static garray_T term_attr_table = {0, 0, 0, 0, NULL};
+
+#define TERM_ATTR_ENTRY(idx) ((attrentry_T *)term_attr_table.ga_data)[idx]
+
+static garray_T cterm_attr_table = {0, 0, 0, 0, NULL};
+
+#define CTERM_ATTR_ENTRY(idx) ((attrentry_T *)cterm_attr_table.ga_data)[idx]
+
+#ifdef FEAT_GUI
+static garray_T gui_attr_table = {0, 0, 0, 0, NULL};
+
+#define GUI_ATTR_ENTRY(idx) ((attrentry_T *)gui_attr_table.ga_data)[idx]
+#endif
+
+/*
+ * Return the attr number for a set of colors and font.
+ * Add a new entry to the term_attr_table, cterm_attr_table or gui_attr_table
+ * if the combination is new.
+ * Return 0 for error (no more room).
+ */
+ static int
+get_attr_entry(garray_T *table, attrentry_T *aep)
+{
+ int i;
+ attrentry_T *taep;
+ static int recursive = FALSE;
+
+ // Init the table, in case it wasn't done yet.
+ table->ga_itemsize = sizeof(attrentry_T);
+ table->ga_growsize = 7;
+
+ // Try to find an entry with the same specifications.
+ for (i = 0; i < table->ga_len; ++i)
+ {
+ taep = &(((attrentry_T *)table->ga_data)[i]);
+ if ( aep->ae_attr == taep->ae_attr
+ && (
+#ifdef FEAT_GUI
+ (table == &gui_attr_table
+ && (aep->ae_u.gui.fg_color == taep->ae_u.gui.fg_color
+ && aep->ae_u.gui.bg_color
+ == taep->ae_u.gui.bg_color
+ && aep->ae_u.gui.sp_color
+ == taep->ae_u.gui.sp_color
+ && aep->ae_u.gui.font == taep->ae_u.gui.font
+# ifdef FEAT_XFONTSET
+ && aep->ae_u.gui.fontset == taep->ae_u.gui.fontset
+# endif
+ ))
+ ||
+#endif
+ (table == &term_attr_table
+ && (aep->ae_u.term.start == NULL)
+ == (taep->ae_u.term.start == NULL)
+ && (aep->ae_u.term.start == NULL
+ || STRCMP(aep->ae_u.term.start,
+ taep->ae_u.term.start) == 0)
+ && (aep->ae_u.term.stop == NULL)
+ == (taep->ae_u.term.stop == NULL)
+ && (aep->ae_u.term.stop == NULL
+ || STRCMP(aep->ae_u.term.stop,
+ taep->ae_u.term.stop) == 0))
+ || (table == &cterm_attr_table
+ && aep->ae_u.cterm.fg_color
+ == taep->ae_u.cterm.fg_color
+ && aep->ae_u.cterm.bg_color
+ == taep->ae_u.cterm.bg_color
+ && aep->ae_u.cterm.ul_color
+ == taep->ae_u.cterm.ul_color
+#ifdef FEAT_TERMGUICOLORS
+ && aep->ae_u.cterm.fg_rgb
+ == taep->ae_u.cterm.fg_rgb
+ && aep->ae_u.cterm.bg_rgb
+ == taep->ae_u.cterm.bg_rgb
+ && aep->ae_u.cterm.ul_rgb
+ == taep->ae_u.cterm.ul_rgb
+#endif
+ )))
+
+ return i + ATTR_OFF;
+ }
+
+ if (table->ga_len + ATTR_OFF > MAX_TYPENR)
+ {
+ // Running out of attribute entries! remove all attributes, and
+ // compute new ones for all groups.
+ // When called recursively, we are really out of numbers.
+ if (recursive)
+ {
+ emsg(_(e_too_many_different_highlighting_attributes_in_use));
+ return 0;
+ }
+ recursive = TRUE;
+
+ clear_hl_tables();
+
+ set_must_redraw(UPD_CLEAR);
+
+ for (i = 0; i < highlight_ga.ga_len; ++i)
+ set_hl_attr(i);
+
+ recursive = FALSE;
+ }
+
+ // This is a new combination of colors and font, add an entry.
+ if (ga_grow(table, 1) == FAIL)
+ return 0;
+
+ taep = &(((attrentry_T *)table->ga_data)[table->ga_len]);
+ CLEAR_POINTER(taep);
+ taep->ae_attr = aep->ae_attr;
+#ifdef FEAT_GUI
+ if (table == &gui_attr_table)
+ {
+ taep->ae_u.gui.fg_color = aep->ae_u.gui.fg_color;
+ taep->ae_u.gui.bg_color = aep->ae_u.gui.bg_color;
+ taep->ae_u.gui.sp_color = aep->ae_u.gui.sp_color;
+ taep->ae_u.gui.font = aep->ae_u.gui.font;
+# ifdef FEAT_XFONTSET
+ taep->ae_u.gui.fontset = aep->ae_u.gui.fontset;
+# endif
+ }
+#endif
+ if (table == &term_attr_table)
+ {
+ if (aep->ae_u.term.start == NULL)
+ taep->ae_u.term.start = NULL;
+ else
+ taep->ae_u.term.start = vim_strsave(aep->ae_u.term.start);
+ if (aep->ae_u.term.stop == NULL)
+ taep->ae_u.term.stop = NULL;
+ else
+ taep->ae_u.term.stop = vim_strsave(aep->ae_u.term.stop);
+ }
+ else if (table == &cterm_attr_table)
+ {
+ taep->ae_u.cterm.fg_color = aep->ae_u.cterm.fg_color;
+ taep->ae_u.cterm.bg_color = aep->ae_u.cterm.bg_color;
+ taep->ae_u.cterm.ul_color = aep->ae_u.cterm.ul_color;
+#ifdef FEAT_TERMGUICOLORS
+ taep->ae_u.cterm.fg_rgb = aep->ae_u.cterm.fg_rgb;
+ taep->ae_u.cterm.bg_rgb = aep->ae_u.cterm.bg_rgb;
+ taep->ae_u.cterm.ul_rgb = aep->ae_u.cterm.ul_rgb;
+#endif
+ }
+ ++table->ga_len;
+ return (table->ga_len - 1 + ATTR_OFF);
+}
+
+#if defined(FEAT_TERMINAL) || defined(PROTO)
+/*
+ * Get an attribute index for a cterm entry.
+ * Uses an existing entry when possible or adds one when needed.
+ */
+ int
+get_cterm_attr_idx(int attr, int fg, int bg)
+{
+ attrentry_T at_en;
+
+ CLEAR_FIELD(at_en);
+#ifdef FEAT_TERMGUICOLORS
+ at_en.ae_u.cterm.fg_rgb = INVALCOLOR;
+ at_en.ae_u.cterm.bg_rgb = INVALCOLOR;
+ at_en.ae_u.cterm.ul_rgb = INVALCOLOR;
+#endif
+ at_en.ae_attr = attr;
+ at_en.ae_u.cterm.fg_color = fg;
+ at_en.ae_u.cterm.bg_color = bg;
+ at_en.ae_u.cterm.ul_color = 0;
+ return get_attr_entry(&cterm_attr_table, &at_en);
+}
+#endif
+
+#if (defined(FEAT_TERMINAL) && defined(FEAT_TERMGUICOLORS)) || defined(PROTO)
+/*
+ * Get an attribute index for a 'termguicolors' entry.
+ * Uses an existing entry when possible or adds one when needed.
+ */
+ int
+get_tgc_attr_idx(int attr, guicolor_T fg, guicolor_T bg)
+{
+ attrentry_T at_en;
+
+ CLEAR_FIELD(at_en);
+ at_en.ae_attr = attr;
+ if (fg == INVALCOLOR && bg == INVALCOLOR)
+ {
+ // If both GUI colors are not set fall back to the cterm colors. Helps
+ // if the GUI only has an attribute, such as undercurl.
+ at_en.ae_u.cterm.fg_rgb = CTERMCOLOR;
+ at_en.ae_u.cterm.bg_rgb = CTERMCOLOR;
+ }
+ else
+ {
+ at_en.ae_u.cterm.fg_rgb = fg;
+ at_en.ae_u.cterm.bg_rgb = bg;
+ }
+ at_en.ae_u.cterm.ul_rgb = INVALCOLOR;
+ return get_attr_entry(&cterm_attr_table, &at_en);
+}
+#endif
+
+#if (defined(FEAT_TERMINAL) && defined(FEAT_GUI)) || defined(PROTO)
+/*
+ * Get an attribute index for a cterm entry.
+ * Uses an existing entry when possible or adds one when needed.
+ */
+ int
+get_gui_attr_idx(int attr, guicolor_T fg, guicolor_T bg)
+{
+ attrentry_T at_en;
+
+ CLEAR_FIELD(at_en);
+ at_en.ae_attr = attr;
+ at_en.ae_u.gui.fg_color = fg;
+ at_en.ae_u.gui.bg_color = bg;
+ return get_attr_entry(&gui_attr_table, &at_en);
+}
+#endif
+
+/*
+ * Clear all highlight tables.
+ */
+ void
+clear_hl_tables(void)
+{
+ int i;
+ attrentry_T *taep;
+
+#ifdef FEAT_GUI
+ ga_clear(&gui_attr_table);
+#endif
+ for (i = 0; i < term_attr_table.ga_len; ++i)
+ {
+ taep = &(((attrentry_T *)term_attr_table.ga_data)[i]);
+ vim_free(taep->ae_u.term.start);
+ vim_free(taep->ae_u.term.stop);
+ }
+ ga_clear(&term_attr_table);
+ ga_clear(&cterm_attr_table);
+}
+
+/*
+ * Combine special attributes (e.g., for spelling) with other attributes
+ * (e.g., for syntax highlighting).
+ * "prim_attr" overrules "char_attr".
+ * This creates a new group when required.
+ * Since we expect there to be few spelling mistakes we don't cache the
+ * result.
+ * Return the resulting attributes.
+ */
+ int
+hl_combine_attr(int char_attr, int prim_attr)
+{
+ attrentry_T *char_aep = NULL;
+ attrentry_T *prim_aep;
+ attrentry_T new_en;
+
+ if (char_attr == 0)
+ return prim_attr;
+ if (char_attr <= HL_ALL && prim_attr <= HL_ALL)
+ return ATTR_COMBINE(char_attr, prim_attr);
+#ifdef FEAT_GUI
+ if (gui.in_use)
+ {
+ if (char_attr > HL_ALL)
+ char_aep = syn_gui_attr2entry(char_attr);
+ if (char_aep != NULL)
+ new_en = *char_aep;
+ else
+ {
+ CLEAR_FIELD(new_en);
+ new_en.ae_u.gui.fg_color = INVALCOLOR;
+ new_en.ae_u.gui.bg_color = INVALCOLOR;
+ new_en.ae_u.gui.sp_color = INVALCOLOR;
+ if (char_attr <= HL_ALL)
+ new_en.ae_attr = char_attr;
+ }
+
+ if (prim_attr <= HL_ALL)
+ new_en.ae_attr = ATTR_COMBINE(new_en.ae_attr, prim_attr);
+ else
+ {
+ prim_aep = syn_gui_attr2entry(prim_attr);
+ if (prim_aep != NULL)
+ {
+ new_en.ae_attr = ATTR_COMBINE(new_en.ae_attr,
+ prim_aep->ae_attr);
+ if (prim_aep->ae_u.gui.fg_color != INVALCOLOR)
+ new_en.ae_u.gui.fg_color = prim_aep->ae_u.gui.fg_color;
+ if (prim_aep->ae_u.gui.bg_color != INVALCOLOR)
+ new_en.ae_u.gui.bg_color = prim_aep->ae_u.gui.bg_color;
+ if (prim_aep->ae_u.gui.sp_color != INVALCOLOR)
+ new_en.ae_u.gui.sp_color = prim_aep->ae_u.gui.sp_color;
+ if (prim_aep->ae_u.gui.font != NOFONT)
+ new_en.ae_u.gui.font = prim_aep->ae_u.gui.font;
+# ifdef FEAT_XFONTSET
+ if (prim_aep->ae_u.gui.fontset != NOFONTSET)
+ new_en.ae_u.gui.fontset = prim_aep->ae_u.gui.fontset;
+# endif
+ }
+ }
+ return get_attr_entry(&gui_attr_table, &new_en);
+ }
+#endif
+
+ if (IS_CTERM)
+ {
+ if (char_attr > HL_ALL)
+ char_aep = syn_cterm_attr2entry(char_attr);
+ if (char_aep != NULL)
+ new_en = *char_aep;
+ else
+ {
+ CLEAR_FIELD(new_en);
+#ifdef FEAT_TERMGUICOLORS
+ new_en.ae_u.cterm.bg_rgb = INVALCOLOR;
+ new_en.ae_u.cterm.fg_rgb = INVALCOLOR;
+ new_en.ae_u.cterm.ul_rgb = INVALCOLOR;
+#endif
+ if (char_attr <= HL_ALL)
+ new_en.ae_attr = char_attr;
+ }
+
+ if (prim_attr <= HL_ALL)
+ new_en.ae_attr = ATTR_COMBINE(new_en.ae_attr, prim_attr);
+ else
+ {
+ prim_aep = syn_cterm_attr2entry(prim_attr);
+ if (prim_aep != NULL)
+ {
+ new_en.ae_attr = ATTR_COMBINE(new_en.ae_attr,
+ prim_aep->ae_attr);
+ if (prim_aep->ae_u.cterm.fg_color > 0)
+ new_en.ae_u.cterm.fg_color = prim_aep->ae_u.cterm.fg_color;
+ if (prim_aep->ae_u.cterm.bg_color > 0)
+ new_en.ae_u.cterm.bg_color = prim_aep->ae_u.cterm.bg_color;
+ if (prim_aep->ae_u.cterm.ul_color > 0)
+ new_en.ae_u.cterm.ul_color = prim_aep->ae_u.cterm.ul_color;
+#ifdef FEAT_TERMGUICOLORS
+ // If both fg and bg are not set fall back to cterm colors.
+ // Helps for SpellBad which uses undercurl in the GUI.
+ if (COLOR_INVALID(prim_aep->ae_u.cterm.fg_rgb)
+ && COLOR_INVALID(prim_aep->ae_u.cterm.bg_rgb))
+ {
+ if (prim_aep->ae_u.cterm.fg_color > 0)
+ new_en.ae_u.cterm.fg_rgb = CTERMCOLOR;
+ if (prim_aep->ae_u.cterm.bg_color > 0)
+ new_en.ae_u.cterm.bg_rgb = CTERMCOLOR;
+ }
+ else
+ {
+ if (prim_aep->ae_u.cterm.fg_rgb != INVALCOLOR)
+ new_en.ae_u.cterm.fg_rgb = prim_aep->ae_u.cterm.fg_rgb;
+ if (prim_aep->ae_u.cterm.bg_rgb != INVALCOLOR)
+ new_en.ae_u.cterm.bg_rgb = prim_aep->ae_u.cterm.bg_rgb;
+ }
+ if (prim_aep->ae_u.cterm.ul_rgb != INVALCOLOR)
+ new_en.ae_u.cterm.ul_rgb = prim_aep->ae_u.cterm.ul_rgb;
+#endif
+ }
+ }
+ return get_attr_entry(&cterm_attr_table, &new_en);
+ }
+
+ if (char_attr > HL_ALL)
+ char_aep = syn_term_attr2entry(char_attr);
+ if (char_aep != NULL)
+ new_en = *char_aep;
+ else
+ {
+ CLEAR_FIELD(new_en);
+ if (char_attr <= HL_ALL)
+ new_en.ae_attr = char_attr;
+ }
+
+ if (prim_attr <= HL_ALL)
+ new_en.ae_attr = ATTR_COMBINE(new_en.ae_attr, prim_attr);
+ else
+ {
+ prim_aep = syn_term_attr2entry(prim_attr);
+ if (prim_aep != NULL)
+ {
+ new_en.ae_attr = ATTR_COMBINE(new_en.ae_attr, prim_aep->ae_attr);
+ if (prim_aep->ae_u.term.start != NULL)
+ {
+ new_en.ae_u.term.start = prim_aep->ae_u.term.start;
+ new_en.ae_u.term.stop = prim_aep->ae_u.term.stop;
+ }
+ }
+ }
+ return get_attr_entry(&term_attr_table, &new_en);
+}
+
+#ifdef FEAT_GUI
+ attrentry_T *
+syn_gui_attr2entry(int attr)
+{
+ attr -= ATTR_OFF;
+ if (attr >= gui_attr_table.ga_len) // did ":syntax clear"
+ return NULL;
+ return &(GUI_ATTR_ENTRY(attr));
+}
+#endif
+
+/*
+ * Get the highlight attributes (HL_BOLD etc.) from an attribute nr.
+ * Only to be used when "attr" > HL_ALL.
+ */
+ int
+syn_attr2attr(int attr)
+{
+ attrentry_T *aep;
+
+#ifdef FEAT_GUI
+ if (gui.in_use)
+ aep = syn_gui_attr2entry(attr);
+ else
+#endif
+ if (IS_CTERM)
+ aep = syn_cterm_attr2entry(attr);
+ else
+ aep = syn_term_attr2entry(attr);
+
+ if (aep == NULL) // highlighting not set
+ return 0;
+ return aep->ae_attr;
+}
+
+
+ attrentry_T *
+syn_term_attr2entry(int attr)
+{
+ attr -= ATTR_OFF;
+ if (attr >= term_attr_table.ga_len) // did ":syntax clear"
+ return NULL;
+ return &(TERM_ATTR_ENTRY(attr));
+}
+
+ attrentry_T *
+syn_cterm_attr2entry(int attr)
+{
+ attr -= ATTR_OFF;
+ if (attr >= cterm_attr_table.ga_len) // did ":syntax clear"
+ return NULL;
+ return &(CTERM_ATTR_ENTRY(attr));
+}
+
+#define LIST_ATTR 1
+#define LIST_STRING 2
+#define LIST_INT 3
+
+ static void
+highlight_list_one(int id)
+{
+ hl_group_T *sgp;
+ int didh = FALSE;
+
+ sgp = &HL_TABLE()[id - 1]; // index is ID minus one
+
+ if (message_filtered(sgp->sg_name))
+ return;
+
+ didh = highlight_list_arg(id, didh, LIST_ATTR,
+ sgp->sg_term, NULL, "term");
+ didh = highlight_list_arg(id, didh, LIST_STRING,
+ 0, sgp->sg_start, "start");
+ didh = highlight_list_arg(id, didh, LIST_STRING,
+ 0, sgp->sg_stop, "stop");
+
+ didh = highlight_list_arg(id, didh, LIST_ATTR,
+ sgp->sg_cterm, NULL, "cterm");
+ didh = highlight_list_arg(id, didh, LIST_INT,
+ sgp->sg_cterm_fg, NULL, "ctermfg");
+ didh = highlight_list_arg(id, didh, LIST_INT,
+ sgp->sg_cterm_bg, NULL, "ctermbg");
+ didh = highlight_list_arg(id, didh, LIST_INT,
+ sgp->sg_cterm_ul, NULL, "ctermul");
+
+#if defined(FEAT_GUI) || defined(FEAT_EVAL)
+ didh = highlight_list_arg(id, didh, LIST_ATTR,
+ sgp->sg_gui, NULL, "gui");
+ didh = highlight_list_arg(id, didh, LIST_STRING,
+ 0, sgp->sg_gui_fg_name, "guifg");
+ didh = highlight_list_arg(id, didh, LIST_STRING,
+ 0, sgp->sg_gui_bg_name, "guibg");
+ didh = highlight_list_arg(id, didh, LIST_STRING,
+ 0, sgp->sg_gui_sp_name, "guisp");
+#endif
+#ifdef FEAT_GUI
+ didh = highlight_list_arg(id, didh, LIST_STRING,
+ 0, sgp->sg_font_name, "font");
+#endif
+
+ if (sgp->sg_link && !got_int)
+ {
+ (void)syn_list_header(didh, 9999, id);
+ didh = TRUE;
+ msg_puts_attr("links to", HL_ATTR(HLF_D));
+ msg_putchar(' ');
+ msg_outtrans(HL_TABLE()[HL_TABLE()[id - 1].sg_link - 1].sg_name);
+ }
+
+ if (!didh)
+ highlight_list_arg(id, didh, LIST_STRING, 0, (char_u *)"cleared", "");
+#ifdef FEAT_EVAL
+ if (p_verbose > 0)
+ last_set_msg(sgp->sg_script_ctx);
+#endif
+}
+
+ static int
+highlight_list_arg(
+ int id,
+ int didh,
+ int type,
+ int iarg,
+ char_u *sarg,
+ char *name)
+{
+ char_u buf[MAX_ATTR_LEN];
+ char_u *ts;
+ int i;
+
+ if (got_int)
+ return FALSE;
+
+ if (type == LIST_STRING ? (sarg == NULL) : (iarg == 0))
+ return didh;
+
+ ts = buf;
+ if (type == LIST_INT)
+ sprintf((char *)buf, "%d", iarg - 1);
+ else if (type == LIST_STRING)
+ ts = sarg;
+ else // type == LIST_ATTR
+ {
+ buf[0] = NUL;
+ for (i = 0; hl_attr_table[i] != 0; ++i)
+ {
+ if (iarg & hl_attr_table[i])
+ {
+ if (buf[0] != NUL)
+ vim_strcat(buf, (char_u *)",", MAX_ATTR_LEN);
+ vim_strcat(buf, (char_u *)hl_name_table[i], MAX_ATTR_LEN);
+ iarg &= ~hl_attr_table[i]; // don't want "inverse"
+ }
+ }
+ }
+
+ (void)syn_list_header(didh,
+ (int)(vim_strsize(ts) + STRLEN(name) + 1), id);
+ didh = TRUE;
+ if (!got_int)
+ {
+ if (*name != NUL)
+ {
+ msg_puts_attr(name, HL_ATTR(HLF_D));
+ msg_puts_attr("=", HL_ATTR(HLF_D));
+ }
+ msg_outtrans(ts);
+ }
+ return didh;
+}
+
+#if (((defined(FEAT_EVAL) || defined(FEAT_PRINTER))) && defined(FEAT_SYN_HL)) || defined(PROTO)
+/*
+ * Return "1" if highlight group "id" has attribute "flag".
+ * Return NULL otherwise.
+ */
+ char_u *
+highlight_has_attr(
+ int id,
+ int flag,
+ int modec) // 'g' for GUI, 'c' for cterm, 't' for term
+{
+ int attr;
+
+ if (id <= 0 || id > highlight_ga.ga_len)
+ return NULL;
+
+#if defined(FEAT_GUI) || defined(FEAT_EVAL)
+ if (modec == 'g')
+ attr = HL_TABLE()[id - 1].sg_gui;
+ else
+#endif
+ {
+ if (modec == 'c')
+ attr = HL_TABLE()[id - 1].sg_cterm;
+ else
+ attr = HL_TABLE()[id - 1].sg_term;
+ }
+
+ if (attr & flag)
+ return (char_u *)"1";
+ return NULL;
+}
+#endif
+
+#if (defined(FEAT_SYN_HL) && defined(FEAT_EVAL)) || defined(PROTO)
+/*
+ * Return color name of highlight group "id".
+ */
+ char_u *
+highlight_color(
+ int id,
+ char_u *what, // "font", "fg", "bg", "sp", "ul", "fg#", "bg#" or "sp#"
+ int modec) // 'g' for GUI, 'c' for cterm, 't' for term
+{
+ static char_u name[20];
+ int n;
+ int fg = FALSE;
+ int sp = FALSE;
+ int ul = FALSE;
+ int font = FALSE;
+
+ if (id <= 0 || id > highlight_ga.ga_len)
+ return NULL;
+
+ if (TOLOWER_ASC(what[0]) == 'f' && TOLOWER_ASC(what[1]) == 'g')
+ fg = TRUE;
+ else if (TOLOWER_ASC(what[0]) == 'f' && TOLOWER_ASC(what[1]) == 'o'
+ && TOLOWER_ASC(what[2]) == 'n' && TOLOWER_ASC(what[3]) == 't')
+ font = TRUE;
+ else if (TOLOWER_ASC(what[0]) == 's' && TOLOWER_ASC(what[1]) == 'p')
+ sp = TRUE;
+ else if (TOLOWER_ASC(what[0]) == 'u' && TOLOWER_ASC(what[1]) == 'l')
+ ul = TRUE;
+ else if (!(TOLOWER_ASC(what[0]) == 'b' && TOLOWER_ASC(what[1]) == 'g'))
+ return NULL;
+ if (modec == 'g')
+ {
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+# ifdef FEAT_GUI
+ // return font name
+ if (font)
+ return HL_TABLE()[id - 1].sg_font_name;
+# endif
+
+ // return #RRGGBB form (only possible when GUI is running)
+ if ((USE_24BIT) && what[2] == '#')
+ {
+ guicolor_T color;
+ long_u rgb;
+ static char_u buf[10];
+
+ if (fg)
+ color = HL_TABLE()[id - 1].sg_gui_fg;
+ else if (sp)
+ color = HL_TABLE()[id - 1].sg_gui_sp;
+ else
+ color = HL_TABLE()[id - 1].sg_gui_bg;
+ if (color == INVALCOLOR)
+ return NULL;
+ rgb = (long_u)GUI_MCH_GET_RGB(color);
+ sprintf((char *)buf, "#%02x%02x%02x",
+ (unsigned)(rgb >> 16),
+ (unsigned)(rgb >> 8) & 255,
+ (unsigned)rgb & 255);
+ return buf;
+ }
+# endif
+ if (fg)
+ return (HL_TABLE()[id - 1].sg_gui_fg_name);
+ if (sp)
+ return (HL_TABLE()[id - 1].sg_gui_sp_name);
+ return (HL_TABLE()[id - 1].sg_gui_bg_name);
+ }
+ if (font || sp)
+ return NULL;
+ if (modec == 'c')
+ {
+ if (fg)
+ n = HL_TABLE()[id - 1].sg_cterm_fg - 1;
+ else if (ul)
+ n = HL_TABLE()[id - 1].sg_cterm_ul - 1;
+ else
+ n = HL_TABLE()[id - 1].sg_cterm_bg - 1;
+ if (n < 0)
+ return NULL;
+ sprintf((char *)name, "%d", n);
+ return name;
+ }
+ // term doesn't have color
+ return NULL;
+}
+#endif
+
+#if (defined(FEAT_SYN_HL) \
+ && (defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)) \
+ && defined(FEAT_PRINTER)) || defined(PROTO)
+/*
+ * Return color name of highlight group "id" as RGB value.
+ */
+ long_u
+highlight_gui_color_rgb(
+ int id,
+ int fg) // TRUE = fg, FALSE = bg
+{
+ guicolor_T color;
+
+ if (id <= 0 || id > highlight_ga.ga_len)
+ return 0L;
+
+ if (fg)
+ color = HL_TABLE()[id - 1].sg_gui_fg;
+ else
+ color = HL_TABLE()[id - 1].sg_gui_bg;
+
+ if (color == INVALCOLOR)
+ return 0L;
+
+ return GUI_MCH_GET_RGB(color);
+}
+#endif
+
+/*
+ * Output the syntax list header.
+ * Return TRUE when started a new line.
+ */
+ int
+syn_list_header(
+ int did_header, // did header already
+ int outlen, // length of string that comes
+ int id) // highlight group id
+{
+ int endcol = 19;
+ int newline = TRUE;
+ int name_col = 0;
+
+ if (!did_header)
+ {
+ msg_putchar('\n');
+ if (got_int)
+ return TRUE;
+ msg_outtrans(HL_TABLE()[id - 1].sg_name);
+ name_col = msg_col;
+ endcol = 15;
+ }
+ else if (msg_col + outlen + 1 >= Columns)
+ {
+ msg_putchar('\n');
+ if (got_int)
+ return TRUE;
+ }
+ else
+ {
+ if (msg_col >= endcol) // wrap around is like starting a new line
+ newline = FALSE;
+ }
+
+ if (msg_col >= endcol) // output at least one space
+ endcol = msg_col + 1;
+ if (Columns <= endcol) // avoid hang for tiny window
+ endcol = Columns - 1;
+
+ msg_advance(endcol);
+
+ // Show "xxx" with the attributes.
+ if (!did_header)
+ {
+ if (endcol == Columns - 1 && endcol <= name_col)
+ msg_putchar(' ');
+ msg_puts_attr("xxx", syn_id2attr(id));
+ msg_putchar(' ');
+ }
+
+ return newline;
+}
+
+/*
+ * Set the attribute numbers for a highlight group.
+ * Called after one of the attributes has changed.
+ */
+ static void
+set_hl_attr(
+ int idx) // index in array
+{
+ attrentry_T at_en;
+ hl_group_T *sgp = HL_TABLE() + idx;
+
+ // The "Normal" group doesn't need an attribute number
+ if (sgp->sg_name_u != NULL && STRCMP(sgp->sg_name_u, "NORMAL") == 0)
+ return;
+
+#ifdef FEAT_GUI
+ // For the GUI mode: If there are other than "normal" highlighting
+ // attributes, need to allocate an attr number.
+ if (sgp->sg_gui_fg == INVALCOLOR
+ && sgp->sg_gui_bg == INVALCOLOR
+ && sgp->sg_gui_sp == INVALCOLOR
+ && sgp->sg_font == NOFONT
+# ifdef FEAT_XFONTSET
+ && sgp->sg_fontset == NOFONTSET
+# endif
+ )
+ {
+ sgp->sg_gui_attr = sgp->sg_gui;
+ }
+ else
+ {
+ at_en.ae_attr = sgp->sg_gui;
+ at_en.ae_u.gui.fg_color = sgp->sg_gui_fg;
+ at_en.ae_u.gui.bg_color = sgp->sg_gui_bg;
+ at_en.ae_u.gui.sp_color = sgp->sg_gui_sp;
+ at_en.ae_u.gui.font = sgp->sg_font;
+# ifdef FEAT_XFONTSET
+ at_en.ae_u.gui.fontset = sgp->sg_fontset;
+# endif
+ sgp->sg_gui_attr = get_attr_entry(&gui_attr_table, &at_en);
+ }
+#endif
+ // For the term mode: If there are other than "normal" highlighting
+ // attributes, need to allocate an attr number.
+ if (sgp->sg_start == NULL && sgp->sg_stop == NULL)
+ sgp->sg_term_attr = sgp->sg_term;
+ else
+ {
+ at_en.ae_attr = sgp->sg_term;
+ at_en.ae_u.term.start = sgp->sg_start;
+ at_en.ae_u.term.stop = sgp->sg_stop;
+ sgp->sg_term_attr = get_attr_entry(&term_attr_table, &at_en);
+ }
+
+ // For the color term mode: If there are other than "normal"
+ // highlighting attributes, need to allocate an attr number.
+ if (sgp->sg_cterm_fg == 0 && sgp->sg_cterm_bg == 0 && sgp->sg_cterm_ul == 0
+# ifdef FEAT_TERMGUICOLORS
+ && sgp->sg_gui_fg == INVALCOLOR
+ && sgp->sg_gui_bg == INVALCOLOR
+ && sgp->sg_gui_sp == INVALCOLOR
+# endif
+ )
+ sgp->sg_cterm_attr = sgp->sg_cterm;
+ else
+ {
+ at_en.ae_attr = sgp->sg_cterm;
+ at_en.ae_u.cterm.fg_color = sgp->sg_cterm_fg;
+ at_en.ae_u.cterm.bg_color = sgp->sg_cterm_bg;
+ at_en.ae_u.cterm.ul_color = sgp->sg_cterm_ul;
+# ifdef FEAT_TERMGUICOLORS
+ at_en.ae_u.cterm.fg_rgb = GUI_MCH_GET_RGB2(sgp->sg_gui_fg);
+ at_en.ae_u.cterm.bg_rgb = GUI_MCH_GET_RGB2(sgp->sg_gui_bg);
+ // Only use the underline/undercurl color when used, it may clear the
+ // background color if not supported.
+ if (sgp->sg_cterm & (HL_UNDERLINE | HL_UNDERCURL
+ | HL_UNDERDOUBLE | HL_UNDERDOTTED | HL_UNDERDASHED))
+ at_en.ae_u.cterm.ul_rgb = GUI_MCH_GET_RGB2(sgp->sg_gui_sp);
+ else
+ at_en.ae_u.cterm.ul_rgb = INVALCOLOR;
+ if (at_en.ae_u.cterm.fg_rgb == INVALCOLOR
+ && at_en.ae_u.cterm.bg_rgb == INVALCOLOR)
+ {
+ // If both fg and bg are invalid fall back to the cterm colors.
+ // Helps when the GUI only uses an attribute, e.g. undercurl.
+ at_en.ae_u.cterm.fg_rgb = CTERMCOLOR;
+ at_en.ae_u.cterm.bg_rgb = CTERMCOLOR;
+ }
+# endif
+ sgp->sg_cterm_attr = get_attr_entry(&cterm_attr_table, &at_en);
+ }
+}
+
+/*
+ * Lookup a highlight group name and return its ID.
+ * If it is not found, 0 is returned.
+ */
+ int
+syn_name2id(char_u *name)
+{
+ int i;
+ char_u name_u[MAX_SYN_NAME + 1];
+
+ // Avoid using stricmp() too much, it's slow on some systems
+ // Avoid alloc()/free(), these are slow too. ID names over 200 chars
+ // don't deserve to be found!
+ vim_strncpy(name_u, name, MAX_SYN_NAME);
+ vim_strup(name_u);
+ for (i = highlight_ga.ga_len; --i >= 0; )
+ if (HL_TABLE()[i].sg_name_u != NULL
+ && STRCMP(name_u, HL_TABLE()[i].sg_name_u) == 0)
+ break;
+ return i + 1;
+}
+
+/*
+ * Lookup a highlight group name and return its attributes.
+ * Return zero if not found.
+ */
+ int
+syn_name2attr(char_u *name)
+{
+ int id = syn_name2id(name);
+
+ if (id != 0)
+ return syn_id2attr(id);
+ return 0;
+}
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+/*
+ * Return TRUE if highlight group "name" exists.
+ */
+ int
+highlight_exists(char_u *name)
+{
+ return (syn_name2id(name) > 0);
+}
+
+# if defined(FEAT_SEARCH_EXTRA) || defined(PROTO)
+/*
+ * Return the name of highlight group "id".
+ * When not a valid ID return an empty string.
+ */
+ char_u *
+syn_id2name(int id)
+{
+ if (id <= 0 || id > highlight_ga.ga_len)
+ return (char_u *)"";
+ return HL_TABLE()[id - 1].sg_name;
+}
+# endif
+#endif
+
+/*
+ * Like syn_name2id(), but take a pointer + length argument.
+ */
+ int
+syn_namen2id(char_u *linep, int len)
+{
+ char_u *name;
+ int id = 0;
+
+ name = vim_strnsave(linep, len);
+ if (name == NULL)
+ return 0;
+
+ id = syn_name2id(name);
+ vim_free(name);
+ return id;
+}
+
+/*
+ * Find highlight group name in the table and return its ID.
+ * The argument is a pointer to the name and the length of the name.
+ * If it doesn't exist yet, a new entry is created.
+ * Return 0 for failure.
+ */
+ int
+syn_check_group(char_u *pp, int len)
+{
+ int id;
+ char_u *name;
+
+ if (len > MAX_SYN_NAME)
+ {
+ emsg(_(e_highlight_group_name_too_long));
+ return 0;
+ }
+ name = vim_strnsave(pp, len);
+ if (name == NULL)
+ return 0;
+
+ id = syn_name2id(name);
+ if (id == 0) // doesn't exist yet
+ id = syn_add_group(name);
+ else
+ vim_free(name);
+ return id;
+}
+
+/*
+ * Add new highlight group and return its ID.
+ * "name" must be an allocated string, it will be consumed.
+ * Return 0 for failure.
+ */
+ static int
+syn_add_group(char_u *name)
+{
+ char_u *p;
+ char_u *name_up;
+
+ // Check that the name is ASCII letters, digits and underscore.
+ for (p = name; *p != NUL; ++p)
+ {
+ if (!vim_isprintc(*p))
+ {
+ emsg(_(e_unprintable_character_in_group_name));
+ vim_free(name);
+ return 0;
+ }
+ else if (!ASCII_ISALNUM(*p) && *p != '_')
+ {
+ // This is an error, but since there previously was no check only
+ // give a warning.
+ msg_source(HL_ATTR(HLF_W));
+ msg(_("W18: Invalid character in group name"));
+ break;
+ }
+ }
+
+ // First call for this growarray: init growing array.
+ if (highlight_ga.ga_data == NULL)
+ {
+ highlight_ga.ga_itemsize = sizeof(hl_group_T);
+ highlight_ga.ga_growsize = 10;
+ }
+
+ if (highlight_ga.ga_len >= MAX_HL_ID)
+ {
+ emsg(_(e_too_many_highlight_and_syntax_groups));
+ vim_free(name);
+ return 0;
+ }
+
+ // Make room for at least one other syntax_highlight entry.
+ if (ga_grow(&highlight_ga, 1) == FAIL)
+ {
+ vim_free(name);
+ return 0;
+ }
+
+ name_up = vim_strsave_up(name);
+ if (name_up == NULL)
+ {
+ vim_free(name);
+ return 0;
+ }
+
+ CLEAR_POINTER(&(HL_TABLE()[highlight_ga.ga_len]));
+ HL_TABLE()[highlight_ga.ga_len].sg_name = name;
+ HL_TABLE()[highlight_ga.ga_len].sg_name_u = name_up;
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+ HL_TABLE()[highlight_ga.ga_len].sg_gui_bg = INVALCOLOR;
+ HL_TABLE()[highlight_ga.ga_len].sg_gui_fg = INVALCOLOR;
+ HL_TABLE()[highlight_ga.ga_len].sg_gui_sp = INVALCOLOR;
+#endif
+ ++highlight_ga.ga_len;
+
+ return highlight_ga.ga_len; // ID is index plus one
+}
+
+/*
+ * When, just after calling syn_add_group(), an error is discovered, this
+ * function deletes the new name.
+ */
+ static void
+syn_unadd_group(void)
+{
+ --highlight_ga.ga_len;
+ vim_free(HL_TABLE()[highlight_ga.ga_len].sg_name);
+ vim_free(HL_TABLE()[highlight_ga.ga_len].sg_name_u);
+}
+
+/*
+ * Translate a group ID to highlight attributes.
+ * "hl_id" must be valid: > 0, caller must check.
+ */
+ int
+syn_id2attr(int hl_id)
+{
+ int attr;
+ hl_group_T *sgp;
+
+ hl_id = syn_get_final_id(hl_id);
+ sgp = &HL_TABLE()[hl_id - 1]; // index is ID minus one
+
+#ifdef FEAT_GUI
+ // Only use GUI attr when the GUI is being used.
+ if (gui.in_use)
+ attr = sgp->sg_gui_attr;
+ else
+#endif
+ if (IS_CTERM)
+ attr = sgp->sg_cterm_attr;
+ else
+ attr = sgp->sg_term_attr;
+
+ return attr;
+}
+
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS) || defined(PROTO)
+/*
+ * Get the GUI colors and attributes for a group ID.
+ * NOTE: the colors will be INVALCOLOR when not set, the color otherwise.
+ */
+ int
+syn_id2colors(int hl_id, guicolor_T *fgp, guicolor_T *bgp)
+{
+ hl_group_T *sgp;
+
+ hl_id = syn_get_final_id(hl_id);
+ sgp = &HL_TABLE()[hl_id - 1]; // index is ID minus one
+
+ *fgp = sgp->sg_gui_fg;
+ *bgp = sgp->sg_gui_bg;
+ return sgp->sg_gui;
+}
+#endif
+
+#if (defined(MSWIN) \
+ && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL)) \
+ && defined(FEAT_TERMGUICOLORS)) \
+ || defined(FEAT_TERMINAL) || defined(PROTO)
+ void
+syn_id2cterm_bg(int hl_id, int *fgp, int *bgp)
+{
+ hl_group_T *sgp;
+
+ hl_id = syn_get_final_id(hl_id);
+ sgp = &HL_TABLE()[hl_id - 1]; // index is ID minus one
+ *fgp = sgp->sg_cterm_fg - 1;
+ *bgp = sgp->sg_cterm_bg - 1;
+}
+#endif
+
+/*
+ * Translate a group ID to the final group ID (following links).
+ */
+ int
+syn_get_final_id(int hl_id)
+{
+ int count;
+ hl_group_T *sgp;
+
+ if (hl_id > highlight_ga.ga_len || hl_id < 1)
+ return 0; // Can be called from eval!!
+
+ // Follow links until there is no more.
+ // Look out for loops! Break after 100 links.
+ for (count = 100; --count >= 0; )
+ {
+ sgp = &HL_TABLE()[hl_id - 1]; // index is ID minus one
+ if (sgp->sg_link == 0 || sgp->sg_link > highlight_ga.ga_len)
+ break;
+ hl_id = sgp->sg_link;
+ }
+
+ return hl_id;
+}
+
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS) || defined(PROTO)
+/*
+ * Call this function just after the GUI has started.
+ * Also called when 'termguicolors' was set, gui.in_use will be FALSE then.
+ * It finds the font and color handles for the highlighting groups.
+ */
+ void
+highlight_gui_started(void)
+{
+ int idx;
+
+ // First get the colors from the "Normal" and "Menu" group, if set
+ if (USE_24BIT)
+ set_normal_colors();
+
+ for (idx = 0; idx < highlight_ga.ga_len; ++idx)
+ gui_do_one_color(idx, FALSE, FALSE);
+
+ highlight_changed();
+}
+
+ static void
+gui_do_one_color(
+ int idx,
+ int do_menu UNUSED, // TRUE: might set the menu font
+ int do_tooltip UNUSED) // TRUE: might set the tooltip font
+{
+ int didit = FALSE;
+
+# ifdef FEAT_GUI
+# ifdef FEAT_TERMGUICOLORS
+ if (gui.in_use)
+# endif
+ if (HL_TABLE()[idx].sg_font_name != NULL)
+ {
+ hl_do_font(idx, HL_TABLE()[idx].sg_font_name, FALSE, do_menu,
+ do_tooltip, TRUE);
+ didit = TRUE;
+ }
+# endif
+ if (HL_TABLE()[idx].sg_gui_fg_name != NULL)
+ {
+ HL_TABLE()[idx].sg_gui_fg =
+ color_name2handle(HL_TABLE()[idx].sg_gui_fg_name);
+ didit = TRUE;
+ }
+ if (HL_TABLE()[idx].sg_gui_bg_name != NULL)
+ {
+ HL_TABLE()[idx].sg_gui_bg =
+ color_name2handle(HL_TABLE()[idx].sg_gui_bg_name);
+ didit = TRUE;
+ }
+ if (HL_TABLE()[idx].sg_gui_sp_name != NULL)
+ {
+ HL_TABLE()[idx].sg_gui_sp =
+ color_name2handle(HL_TABLE()[idx].sg_gui_sp_name);
+ didit = TRUE;
+ }
+ if (didit) // need to get a new attr number
+ set_hl_attr(idx);
+}
+#endif
+
+#if defined(USER_HIGHLIGHT) && defined(FEAT_STL_OPT)
+/*
+ * Apply difference between User[1-9] and HLF_S to HLF_SNC, HLF_ST or HLF_STNC.
+ */
+ static void
+combine_stl_hlt(
+ int id,
+ int id_S,
+ int id_alt,
+ int hlcnt,
+ int i,
+ int hlf,
+ int *table)
+{
+ hl_group_T *hlt = HL_TABLE();
+
+ if (id_alt == 0)
+ {
+ CLEAR_POINTER(&hlt[hlcnt + i]);
+ hlt[hlcnt + i].sg_term = highlight_attr[hlf];
+ hlt[hlcnt + i].sg_cterm = highlight_attr[hlf];
+# if defined(FEAT_GUI) || defined(FEAT_EVAL)
+ hlt[hlcnt + i].sg_gui = highlight_attr[hlf];
+# endif
+ }
+ else
+ mch_memmove(&hlt[hlcnt + i],
+ &hlt[id_alt - 1],
+ sizeof(hl_group_T));
+ hlt[hlcnt + i].sg_link = 0;
+
+ hlt[hlcnt + i].sg_term ^=
+ hlt[id - 1].sg_term ^ hlt[id_S - 1].sg_term;
+ if (hlt[id - 1].sg_start != hlt[id_S - 1].sg_start)
+ hlt[hlcnt + i].sg_start = hlt[id - 1].sg_start;
+ if (hlt[id - 1].sg_stop != hlt[id_S - 1].sg_stop)
+ hlt[hlcnt + i].sg_stop = hlt[id - 1].sg_stop;
+ hlt[hlcnt + i].sg_cterm ^=
+ hlt[id - 1].sg_cterm ^ hlt[id_S - 1].sg_cterm;
+ if (hlt[id - 1].sg_cterm_fg != hlt[id_S - 1].sg_cterm_fg)
+ hlt[hlcnt + i].sg_cterm_fg = hlt[id - 1].sg_cterm_fg;
+ if (hlt[id - 1].sg_cterm_bg != hlt[id_S - 1].sg_cterm_bg)
+ hlt[hlcnt + i].sg_cterm_bg = hlt[id - 1].sg_cterm_bg;
+# if defined(FEAT_GUI) || defined(FEAT_EVAL)
+ hlt[hlcnt + i].sg_gui ^=
+ hlt[id - 1].sg_gui ^ hlt[id_S - 1].sg_gui;
+# endif
+# ifdef FEAT_GUI
+ if (hlt[id - 1].sg_gui_fg != hlt[id_S - 1].sg_gui_fg)
+ hlt[hlcnt + i].sg_gui_fg = hlt[id - 1].sg_gui_fg;
+ if (hlt[id - 1].sg_gui_bg != hlt[id_S - 1].sg_gui_bg)
+ hlt[hlcnt + i].sg_gui_bg = hlt[id - 1].sg_gui_bg;
+ if (hlt[id - 1].sg_gui_sp != hlt[id_S - 1].sg_gui_sp)
+ hlt[hlcnt + i].sg_gui_sp = hlt[id - 1].sg_gui_sp;
+ if (hlt[id - 1].sg_font != hlt[id_S - 1].sg_font)
+ hlt[hlcnt + i].sg_font = hlt[id - 1].sg_font;
+# ifdef FEAT_XFONTSET
+ if (hlt[id - 1].sg_fontset != hlt[id_S - 1].sg_fontset)
+ hlt[hlcnt + i].sg_fontset = hlt[id - 1].sg_fontset;
+# endif
+# endif
+ highlight_ga.ga_len = hlcnt + i + 1;
+ set_hl_attr(hlcnt + i); // At long last we can apply
+ table[i] = syn_id2attr(hlcnt + i + 1);
+}
+#endif
+
+/*
+ * Translate the 'highlight' option into attributes in highlight_attr[] and
+ * set up the user highlights User1..9. If FEAT_STL_OPT is in use, a set of
+ * corresponding highlights to use on top of HLF_SNC is computed.
+ * Called only when the 'highlight' option has been changed and upon first
+ * screen redraw after any :highlight command.
+ * Return FAIL when an invalid flag is found in 'highlight'. OK otherwise.
+ */
+ int
+highlight_changed(void)
+{
+ int hlf;
+ int i;
+ char_u *p;
+ int attr;
+ char_u *end;
+ int id;
+#ifdef USER_HIGHLIGHT
+ char_u userhl[30]; // use 30 to avoid compiler warning
+# ifdef FEAT_STL_OPT
+ int id_S = -1;
+ int id_SNC = 0;
+# ifdef FEAT_TERMINAL
+ int id_ST = 0;
+ int id_STNC = 0;
+# endif
+ int hlcnt;
+# endif
+#endif
+ static int hl_flags[HLF_COUNT] = HL_FLAGS;
+
+ need_highlight_changed = FALSE;
+
+#ifdef FEAT_TERMINAL
+ term_update_colors_all();
+ term_update_wincolor_all();
+#endif
+
+ // Clear all attributes.
+ for (hlf = 0; hlf < (int)HLF_COUNT; ++hlf)
+ highlight_attr[hlf] = 0;
+
+ // First set all attributes to their default value.
+ // Then use the attributes from the 'highlight' option.
+ for (i = 0; i < 2; ++i)
+ {
+ if (i)
+ p = p_hl;
+ else
+ p = get_highlight_default();
+ if (p == NULL) // just in case
+ continue;
+
+ while (*p)
+ {
+ for (hlf = 0; hlf < (int)HLF_COUNT; ++hlf)
+ if (hl_flags[hlf] == *p)
+ break;
+ ++p;
+ if (hlf == (int)HLF_COUNT || *p == NUL)
+ return FAIL;
+
+ // Allow several hl_flags to be combined, like "bu" for
+ // bold-underlined.
+ attr = 0;
+ for ( ; *p && *p != ','; ++p) // parse up to comma
+ {
+ if (VIM_ISWHITE(*p)) // ignore white space
+ continue;
+
+ if (attr > HL_ALL) // Combination with ':' is not allowed.
+ return FAIL;
+
+ switch (*p)
+ {
+ case 'b': attr |= HL_BOLD;
+ break;
+ case 'i': attr |= HL_ITALIC;
+ break;
+ case '-':
+ case 'n': // no highlighting
+ break;
+ case 'r': attr |= HL_INVERSE;
+ break;
+ case 's': attr |= HL_STANDOUT;
+ break;
+ case 'u': attr |= HL_UNDERLINE;
+ break;
+ case 'c': attr |= HL_UNDERCURL;
+ break;
+ case '2': attr |= HL_UNDERDOUBLE;
+ break;
+ case 'd': attr |= HL_UNDERDOTTED;
+ break;
+ case '=': attr |= HL_UNDERDASHED;
+ break;
+ case 't': attr |= HL_STRIKETHROUGH;
+ break;
+ case ':': ++p; // highlight group name
+ if (attr || *p == NUL) // no combinations
+ return FAIL;
+ end = vim_strchr(p, ',');
+ if (end == NULL)
+ end = p + STRLEN(p);
+ id = syn_check_group(p, (int)(end - p));
+ if (id == 0)
+ return FAIL;
+ attr = syn_id2attr(id);
+ p = end - 1;
+#if defined(FEAT_STL_OPT) && defined(USER_HIGHLIGHT)
+ if (hlf == (int)HLF_SNC)
+ id_SNC = syn_get_final_id(id);
+# ifdef FEAT_TERMINAL
+ else if (hlf == (int)HLF_ST)
+ id_ST = syn_get_final_id(id);
+ else if (hlf == (int)HLF_STNC)
+ id_STNC = syn_get_final_id(id);
+# endif
+ else if (hlf == (int)HLF_S)
+ id_S = syn_get_final_id(id);
+#endif
+ break;
+ default: return FAIL;
+ }
+ }
+ highlight_attr[hlf] = attr;
+
+ p = skip_to_option_part(p); // skip comma and spaces
+ }
+ }
+
+#ifdef USER_HIGHLIGHT
+ // Setup the user highlights
+ //
+ // Temporarily utilize 28 more hl entries:
+ // 9 for User1-User9 combined with StatusLineNC
+ // 9 for User1-User9 combined with StatusLineTerm
+ // 9 for User1-User9 combined with StatusLineTermNC
+ // 1 for StatusLine default
+ // Have to be in there simultaneously in case of table overflows in
+ // get_attr_entry()
+# ifdef FEAT_STL_OPT
+ if (ga_grow(&highlight_ga, 28) == FAIL)
+ return FAIL;
+ hlcnt = highlight_ga.ga_len;
+ if (id_S == -1)
+ {
+ // Make sure id_S is always valid to simplify code below. Use the last
+ // entry.
+ CLEAR_POINTER(&HL_TABLE()[hlcnt + 27]);
+ HL_TABLE()[hlcnt + 18].sg_term = highlight_attr[HLF_S];
+ id_S = hlcnt + 19;
+ }
+# endif
+ for (i = 0; i < 9; i++)
+ {
+ sprintf((char *)userhl, "User%d", i + 1);
+ id = syn_name2id(userhl);
+ if (id == 0)
+ {
+ highlight_user[i] = 0;
+# ifdef FEAT_STL_OPT
+ highlight_stlnc[i] = 0;
+# ifdef FEAT_TERMINAL
+ highlight_stlterm[i] = 0;
+ highlight_stltermnc[i] = 0;
+# endif
+# endif
+ }
+ else
+ {
+ highlight_user[i] = syn_id2attr(id);
+# ifdef FEAT_STL_OPT
+ combine_stl_hlt(id, id_S, id_SNC, hlcnt, i,
+ HLF_SNC, highlight_stlnc);
+# ifdef FEAT_TERMINAL
+ combine_stl_hlt(id, id_S, id_ST, hlcnt + 9, i,
+ HLF_ST, highlight_stlterm);
+ combine_stl_hlt(id, id_S, id_STNC, hlcnt + 18, i,
+ HLF_STNC, highlight_stltermnc);
+# endif
+# endif
+ }
+ }
+# ifdef FEAT_STL_OPT
+ highlight_ga.ga_len = hlcnt;
+# endif
+
+#endif // USER_HIGHLIGHT
+
+ return OK;
+}
+
+static void highlight_list(void);
+static void highlight_list_two(int cnt, int attr);
+
+/*
+ * Handle command line completion for :highlight command.
+ */
+ void
+set_context_in_highlight_cmd(expand_T *xp, char_u *arg)
+{
+ char_u *p;
+
+ // Default: expand group names
+ xp->xp_context = EXPAND_HIGHLIGHT;
+ xp->xp_pattern = arg;
+ include_link = 2;
+ include_default = 1;
+
+ if (*arg == NUL)
+ return;
+
+ // (part of) subcommand already typed
+ p = skiptowhite(arg);
+ if (*p == NUL)
+ return;
+
+ // past "default" or group name
+ include_default = 0;
+ if (STRNCMP("default", arg, p - arg) == 0)
+ {
+ arg = skipwhite(p);
+ xp->xp_pattern = arg;
+ p = skiptowhite(arg);
+ }
+ if (*p == NUL)
+ return;
+
+ // past group name
+ include_link = 0;
+ if (arg[1] == 'i' && arg[0] == 'N')
+ highlight_list();
+ if (STRNCMP("link", arg, p - arg) == 0
+ || STRNCMP("clear", arg, p - arg) == 0)
+ {
+ xp->xp_pattern = skipwhite(p);
+ p = skiptowhite(xp->xp_pattern);
+ if (*p != NUL) // past first group name
+ {
+ xp->xp_pattern = skipwhite(p);
+ p = skiptowhite(xp->xp_pattern);
+ }
+ }
+ if (*p != NUL) // past group name(s)
+ xp->xp_context = EXPAND_NOTHING;
+}
+
+/*
+ * List highlighting matches in a nice way.
+ */
+ static void
+highlight_list(void)
+{
+ int i;
+
+ for (i = 10; --i >= 0; )
+ highlight_list_two(i, HL_ATTR(HLF_D));
+ for (i = 40; --i >= 0; )
+ highlight_list_two(99, 0);
+}
+
+ static void
+highlight_list_two(int cnt, int attr)
+{
+ msg_puts_attr(&("N \bI \b! \b"[cnt / 11]), attr);
+ msg_clr_eos();
+ out_flush();
+ ui_delay(cnt == 99 ? 40L : (long)cnt * 50L, FALSE);
+}
+
+/*
+ * Function given to ExpandGeneric() to obtain the list of group names.
+ */
+ char_u *
+get_highlight_name(expand_T *xp UNUSED, int idx)
+{
+ return get_highlight_name_ext(xp, idx, TRUE);
+}
+
+/*
+ * Obtain a highlight group name.
+ * When "skip_cleared" is TRUE don't return a cleared entry.
+ */
+ char_u *
+get_highlight_name_ext(expand_T *xp UNUSED, int idx, int skip_cleared)
+{
+ if (idx < 0)
+ return NULL;
+
+ // Items are never removed from the table, skip the ones that were
+ // cleared.
+ if (skip_cleared && idx < highlight_ga.ga_len && HL_TABLE()[idx].sg_cleared)
+ return (char_u *)"";
+
+ if (idx == highlight_ga.ga_len && include_none != 0)
+ return (char_u *)"none";
+ if (idx == highlight_ga.ga_len + include_none && include_default != 0)
+ return (char_u *)"default";
+ if (idx == highlight_ga.ga_len + include_none + include_default
+ && include_link != 0)
+ return (char_u *)"link";
+ if (idx == highlight_ga.ga_len + include_none + include_default + 1
+ && include_link != 0)
+ return (char_u *)"clear";
+ if (idx >= highlight_ga.ga_len)
+ return NULL;
+ return HL_TABLE()[idx].sg_name;
+}
+
+#if defined(FEAT_GUI) || defined(PROTO)
+/*
+ * Free all the highlight group fonts.
+ * Used when quitting for systems which need it.
+ */
+ void
+free_highlight_fonts(void)
+{
+ int idx;
+
+ for (idx = 0; idx < highlight_ga.ga_len; ++idx)
+ {
+ gui_mch_free_font(HL_TABLE()[idx].sg_font);
+ HL_TABLE()[idx].sg_font = NOFONT;
+# ifdef FEAT_XFONTSET
+ gui_mch_free_fontset(HL_TABLE()[idx].sg_fontset);
+ HL_TABLE()[idx].sg_fontset = NOFONTSET;
+# endif
+ }
+
+ gui_mch_free_font(gui.norm_font);
+# ifdef FEAT_XFONTSET
+ gui_mch_free_fontset(gui.fontset);
+# endif
+# ifndef FEAT_GUI_GTK
+ gui_mch_free_font(gui.bold_font);
+ gui_mch_free_font(gui.ital_font);
+ gui_mch_free_font(gui.boldital_font);
+# endif
+}
+#endif
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+/*
+ * Convert each of the highlight attribute bits (bold, standout, underline,
+ * etc.) set in 'hlattr' into a separate boolean item in a Dictionary with
+ * the attribute name as the key.
+ */
+ static dict_T *
+highlight_get_attr_dict(int hlattr)
+{
+ dict_T *dict;
+ int i;
+
+ dict = dict_alloc();
+ if (dict == NULL)
+ return NULL;
+
+ for (i = 0; hl_attr_table[i] != 0; ++i)
+ {
+ if (hlattr & hl_attr_table[i])
+ {
+ dict_add_bool(dict, hl_name_table[i], VVAL_TRUE);
+ hlattr &= ~hl_attr_table[i]; // don't want "inverse"
+ }
+ }
+
+ return dict;
+}
+
+/*
+ * Return the attributes of the highlight group at index 'hl_idx' as a
+ * Dictionary. If 'resolve_link' is TRUE, then resolves the highlight group
+ * links recursively.
+ */
+ static dict_T *
+highlight_get_info(int hl_idx, int resolve_link)
+{
+ dict_T *dict;
+ hl_group_T *sgp;
+ dict_T *attr_dict;
+ int hlgid;
+
+ dict = dict_alloc();
+ if (dict == NULL)
+ return dict;
+
+ sgp = &HL_TABLE()[hl_idx];
+ // highlight group id is 1-based
+ hlgid = hl_idx + 1;
+
+ if (dict_add_string(dict, "name", sgp->sg_name) == FAIL)
+ goto error;
+ if (dict_add_number(dict, "id", hlgid) == FAIL)
+ goto error;
+
+ if (sgp->sg_link && resolve_link)
+ {
+ // resolve the highlight group link recursively
+ while (sgp->sg_link)
+ {
+ hlgid = sgp->sg_link;
+ sgp = &HL_TABLE()[sgp->sg_link - 1];
+ }
+ }
+
+ if (sgp->sg_term != 0)
+ {
+ attr_dict = highlight_get_attr_dict(sgp->sg_term);
+ if (attr_dict != NULL)
+ if (dict_add_dict(dict, "term", attr_dict) == FAIL)
+ goto error;
+ }
+ if (sgp->sg_start != NULL)
+ if (dict_add_string(dict, "start", sgp->sg_start) == FAIL)
+ goto error;
+ if (sgp->sg_stop != NULL)
+ if (dict_add_string(dict, "stop", sgp->sg_stop) == FAIL)
+ goto error;
+ if (sgp->sg_cterm != 0)
+ {
+ attr_dict = highlight_get_attr_dict(sgp->sg_cterm);
+ if (attr_dict != NULL)
+ if (dict_add_dict(dict, "cterm", attr_dict) == FAIL)
+ goto error;
+ }
+ if (sgp->sg_cterm_fg != 0)
+ if (dict_add_string(dict, "ctermfg",
+ highlight_color(hlgid, (char_u *)"fg", 'c')) == FAIL)
+ goto error;
+ if (sgp->sg_cterm_bg != 0)
+ if (dict_add_string(dict, "ctermbg",
+ highlight_color(hlgid, (char_u *)"bg", 'c')) == FAIL)
+ goto error;
+ if (sgp->sg_cterm_ul != 0)
+ if (dict_add_string(dict, "ctermul",
+ highlight_color(hlgid, (char_u *)"ul", 'c')) == FAIL)
+ goto error;
+ if (sgp->sg_gui != 0)
+ {
+ attr_dict = highlight_get_attr_dict(sgp->sg_gui);
+ if (attr_dict != NULL)
+ if (dict_add_dict(dict, "gui", attr_dict) == FAIL)
+ goto error;
+ }
+ if (sgp->sg_gui_fg_name != NULL)
+ if (dict_add_string(dict, "guifg",
+ highlight_color(hlgid, (char_u *)"fg", 'g')) == FAIL)
+ goto error;
+ if (sgp->sg_gui_bg_name != NULL)
+ if (dict_add_string(dict, "guibg",
+ highlight_color(hlgid, (char_u *)"bg", 'g')) == FAIL)
+ goto error;
+ if (sgp->sg_gui_sp_name != NULL)
+ if (dict_add_string(dict, "guisp",
+ highlight_color(hlgid, (char_u *)"sp", 'g')) == FAIL)
+ goto error;
+# ifdef FEAT_GUI
+ if (sgp->sg_font_name != NULL)
+ if (dict_add_string(dict, "font", sgp->sg_font_name) == FAIL)
+ goto error;
+# endif
+ if (sgp->sg_link)
+ {
+ char_u *link;
+
+ link = HL_TABLE()[sgp->sg_link - 1].sg_name;
+ if (link != NULL && dict_add_string(dict, "linksto", link) == FAIL)
+ goto error;
+
+ if (sgp->sg_deflink)
+ dict_add_bool(dict, "default", VVAL_TRUE);
+ }
+ if (dict_len(dict) == 2)
+ // If only 'name' is present, then the highlight group is cleared.
+ dict_add_bool(dict, "cleared", VVAL_TRUE);
+
+ return dict;
+
+error:
+ vim_free(dict);
+ return NULL;
+}
+
+/*
+ * "hlget([name])" function
+ * Return the attributes of a specific highlight group (if specified) or all
+ * the highlight groups.
+ */
+ void
+f_hlget(typval_T *argvars, typval_T *rettv)
+{
+ list_T *list;
+ dict_T *dict;
+ int i;
+ char_u *hlarg = NULL;
+ int resolve_link = FALSE;
+
+ if (rettv_list_alloc(rettv) == FAIL)
+ return;
+
+ if (check_for_opt_string_arg(argvars, 0) == FAIL
+ || (argvars[0].v_type != VAR_UNKNOWN
+ && check_for_opt_bool_arg(argvars, 1) == FAIL))
+ return;
+
+ if (argvars[0].v_type != VAR_UNKNOWN)
+ {
+ // highlight group name supplied
+ hlarg = tv_get_string_chk(&argvars[0]);
+ if (hlarg == NULL)
+ return;
+
+ if (argvars[1].v_type != VAR_UNKNOWN)
+ {
+ int error = FALSE;
+
+ resolve_link = tv_get_bool_chk(&argvars[1], &error);
+ if (error)
+ return;
+ }
+ }
+
+ list = rettv->vval.v_list;
+ for (i = 0; i < highlight_ga.ga_len && !got_int; ++i)
+ {
+ if (hlarg == NULL || STRICMP(hlarg, HL_TABLE()[i].sg_name) == 0)
+ {
+ dict = highlight_get_info(i, resolve_link);
+ if (dict != NULL)
+ list_append_dict(list, dict);
+ }
+ }
+}
+
+/*
+ * Returns the string value at 'dict[key]'. Returns NULL, if 'key' is not in
+ * 'dict' or the value is not a string type. If the value is not a string type
+ * or is NULL, then 'error' is set to TRUE.
+ */
+ static char_u *
+hldict_get_string(dict_T *dict, char_u *key, int *error)
+{
+ dictitem_T *di;
+
+ *error = FALSE;
+ di = dict_find(dict, key, -1);
+ if (di == NULL)
+ return NULL;
+
+ if (di->di_tv.v_type != VAR_STRING || di->di_tv.vval.v_string == NULL)
+ {
+ emsg(_(e_string_required));
+ *error = TRUE;
+ return NULL;
+ }
+
+ return di->di_tv.vval.v_string;
+}
+
+/*
+ * Convert the highlight attribute Dictionary at 'dict[key]' into a string
+ * value in 'attr_str' of length 'len'. Returns FALSE if 'dict[key]' is not a
+ * Dictionary or is NULL.
+ */
+ static int
+hldict_attr_to_str(
+ dict_T *dict,
+ char_u *key,
+ char_u *attr_str,
+ size_t len)
+{
+ dictitem_T *di;
+ dict_T *attrdict;
+ int i;
+ char_u *p;
+ size_t sz;
+
+ attr_str[0] = NUL;
+ di = dict_find(dict, key, -1);
+ if (di == NULL)
+ return TRUE;
+
+ if (di->di_tv.v_type != VAR_DICT || di->di_tv.vval.v_dict == NULL)
+ {
+ emsg(_(e_dictionary_required));
+ return FALSE;
+ }
+
+ attrdict = di->di_tv.vval.v_dict;
+
+ // If the attribute dict is empty, then return NONE to clear the attributes
+ if (dict_len(attrdict) == 0)
+ {
+ vim_strcat(attr_str, (char_u *)"NONE", len);
+ return TRUE;
+ }
+
+ p = attr_str;
+ for (i = 0; i < (int)ARRAY_LENGTH(hl_name_table); i++)
+ {
+ if (dict_get_bool(attrdict, hl_name_table[i], VVAL_FALSE) == VVAL_TRUE)
+ {
+ if (p != attr_str && (size_t)(p - attr_str + 2) < len)
+ STRCPY(p, (char_u *)",");
+ sz = STRLEN(hl_name_table[i]);
+ if (p - attr_str + sz + 1 < len)
+ {
+ STRCPY(p, (char_u *)hl_name_table[i]);
+ p += sz;
+ }
+ }
+ }
+
+ return TRUE;
+}
+
+// Temporary buffer used to store the command string produced by hlset().
+// IObuff cannot be used for this as the error messages produced by hlset()
+// internally use IObuff.
+#define HLSETBUFSZ 512
+static char_u hlsetBuf[HLSETBUFSZ + 1];
+
+/*
+ * Add the highlight attribute "attr" of length "attrlen" and "value" at
+ * "dptr", which points into "hlsetBuf".
+ * Returns the updated pointer.
+ */
+ static char_u *
+add_attr_and_value(char_u *dptr, char_u *attr, int attrlen, char_u *value)
+{
+ size_t vallen;
+
+ // Do nothing if the value is not specified or is empty
+ if (value == NULL || *value == NUL)
+ return dptr;
+
+ vallen = STRLEN(value);
+ if (dptr + attrlen + vallen + 1 < hlsetBuf + HLSETBUFSZ)
+ {
+ STRCPY(dptr, attr);
+ dptr += attrlen;
+ STRCPY(dptr, value);
+ dptr += vallen;
+ }
+
+ return dptr;
+}
+
+/*
+ * Add or update a highlight group using 'dict' items. Returns TRUE if
+ * successfully updated the highlight group.
+ */
+ static int
+hlg_add_or_update(dict_T *dict)
+{
+ char_u *name;
+ int error;
+ char_u term_attr[MAX_ATTR_LEN];
+ char_u cterm_attr[MAX_ATTR_LEN];
+ char_u gui_attr[MAX_ATTR_LEN];
+ char_u *start;
+ char_u *stop;
+ char_u *ctermfg;
+ char_u *ctermbg;
+ char_u *ctermul;
+ char_u *guifg;
+ char_u *guibg;
+ char_u *guisp;
+# ifdef FEAT_GUI
+ char_u *font;
+# endif
+ int forceit = FALSE;
+ int dodefault = FALSE;
+ int done = FALSE;
+ char_u *p;
+
+ name = hldict_get_string(dict, (char_u *)"name", &error);
+ if (name == NULL || *name == NUL || error)
+ return FALSE;
+
+ if (dict_get_bool(dict, "force", VVAL_FALSE) == VVAL_TRUE)
+ forceit = TRUE;
+
+ if (dict_get_bool(dict, "default", VVAL_FALSE) == VVAL_TRUE)
+ dodefault = TRUE;
+
+ if (dict_has_key(dict, "cleared"))
+ {
+ varnumber_T cleared;
+
+ // clear a highlight group
+ cleared = dict_get_bool(dict, "cleared", FALSE);
+ if (cleared == TRUE)
+ {
+ vim_snprintf((char *)hlsetBuf, HLSETBUFSZ, "clear %s", name);
+ do_highlight(hlsetBuf, forceit, FALSE);
+ done = TRUE;
+ }
+ }
+
+ if (dict_has_key(dict, "linksto"))
+ {
+ char_u *linksto;
+
+ // link highlight groups
+ linksto = hldict_get_string(dict, (char_u *)"linksto", &error);
+ if (linksto == NULL || *linksto == NUL || error)
+ return FALSE;
+
+ vim_snprintf((char *)hlsetBuf, HLSETBUFSZ, "%slink %s %s",
+ dodefault ? "default " : "", name, linksto);
+ do_highlight(hlsetBuf, forceit, FALSE);
+
+ done = TRUE;
+ }
+
+ // If 'cleared' or 'linksto' are specified, then don't process the other
+ // attributes.
+ if (done)
+ return TRUE;
+
+ start = hldict_get_string(dict, (char_u *)"start", &error);
+ if (error)
+ return FALSE;
+
+ stop = hldict_get_string(dict, (char_u *)"stop", &error);
+ if (error)
+ return FALSE;
+
+ if (!hldict_attr_to_str(dict, (char_u *)"term", term_attr,
+ sizeof(term_attr)))
+ return FALSE;
+
+ if (!hldict_attr_to_str(dict, (char_u *)"cterm", cterm_attr,
+ sizeof(cterm_attr)))
+ return FALSE;
+
+ ctermfg = hldict_get_string(dict, (char_u *)"ctermfg", &error);
+ if (error)
+ return FALSE;
+
+ ctermbg = hldict_get_string(dict, (char_u *)"ctermbg", &error);
+ if (error)
+ return FALSE;
+
+ ctermul = hldict_get_string(dict, (char_u *)"ctermul", &error);
+ if (error)
+ return FALSE;
+
+ if (!hldict_attr_to_str(dict, (char_u *)"gui", gui_attr, sizeof(gui_attr)))
+ return FALSE;
+
+ guifg = hldict_get_string(dict, (char_u *)"guifg", &error);
+ if (error)
+ return FALSE;
+
+ guibg = hldict_get_string(dict, (char_u *)"guibg", &error);
+ if (error)
+ return FALSE;
+
+ guisp = hldict_get_string(dict, (char_u *)"guisp", &error);
+ if (error)
+ return FALSE;
+
+# ifdef FEAT_GUI
+ font = hldict_get_string(dict, (char_u *)"font", &error);
+ if (error)
+ return FALSE;
+# endif
+
+ // If none of the attributes are specified, then do nothing.
+ if (term_attr[0] == NUL && start == NULL && stop == NULL
+ && cterm_attr[0] == NUL && ctermfg == NULL && ctermbg == NULL
+ && ctermul == NULL && gui_attr[0] == NUL
+# ifdef FEAT_GUI
+ && font == NULL
+# endif
+ && guifg == NULL && guibg == NULL && guisp == NULL
+ )
+ return TRUE;
+
+ hlsetBuf[0] = NUL;
+ p = hlsetBuf;
+ if (dodefault)
+ p = add_attr_and_value(p, (char_u *)"default", 7, (char_u *)" ");
+ p = add_attr_and_value(p, (char_u *)"", 0, name);
+ p = add_attr_and_value(p, (char_u *)" term=", 6, term_attr);
+ p = add_attr_and_value(p, (char_u *)" start=", 7, start);
+ p = add_attr_and_value(p, (char_u *)" stop=", 6, stop);
+ p = add_attr_and_value(p, (char_u *)" cterm=", 7, cterm_attr);
+ p = add_attr_and_value(p, (char_u *)" ctermfg=", 9, ctermfg);
+ p = add_attr_and_value(p, (char_u *)" ctermbg=", 9, ctermbg);
+ p = add_attr_and_value(p, (char_u *)" ctermul=", 9, ctermul);
+ p = add_attr_and_value(p, (char_u *)" gui=", 5, gui_attr);
+# ifdef FEAT_GUI
+ p = add_attr_and_value(p, (char_u *)" font=", 6, font);
+# endif
+ p = add_attr_and_value(p, (char_u *)" guifg=", 7, guifg);
+ p = add_attr_and_value(p, (char_u *)" guibg=", 7, guibg);
+ (void)add_attr_and_value(p, (char_u *)" guisp=", 7, guisp);
+
+ do_highlight(hlsetBuf, forceit, FALSE);
+
+ return TRUE;
+}
+
+/*
+ * "hlset([{highlight_attr}])" function
+ * Add or modify highlight groups
+ */
+ void
+f_hlset(typval_T *argvars, typval_T *rettv)
+{
+ listitem_T *li;
+ dict_T *dict;
+
+ rettv->vval.v_number = -1;
+
+ if (check_for_list_arg(argvars, 0) == FAIL)
+ return;
+
+ FOR_ALL_LIST_ITEMS(argvars->vval.v_list, li)
+ {
+ if (li->li_tv.v_type != VAR_DICT)
+ {
+ emsg(_(e_dictionary_required));
+ return;
+ }
+
+ dict = li->li_tv.vval.v_dict;
+ if (!hlg_add_or_update(dict))
+ return;
+ }
+
+ rettv->vval.v_number = 0;
+}
+#endif