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@ -194,7 +194,7 @@ static void terminfo_start(UI *ui)
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const char *term = os_getenv("TERM");
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data->ut = unibi_from_env();
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if (!data->ut) {
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data->ut = load_builtin_terminfo(term);
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data->ut = terminfo_from_builtin(term);
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}
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// None of the following work over SSH; see :help TERM .
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const char *colorterm = os_getenv("COLORTERM");
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@ -940,9 +940,10 @@ static void tui_scroll(UI *ui, Integer count)
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}
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cursor_goto(ui, saved_row, saved_col);
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if (!scroll_clears_to_current_colour) {
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// This is required because scrolling will leave wrong background in the
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// cleared area on non-bge terminals.
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if (!scroll_clears_to_current_colour && grid->bg != -1) {
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// Scrolling may leave wrong background in the cleared area on non-bge
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// terminals. Update the cleared area of the terminal if its builtin
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// scrolling facility was used and bg color is not the default.
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clear_region(ui, clear_top, clear_bot, grid->left, grid->right);
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}
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} else {
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@ -1234,11 +1235,9 @@ static int unibi_find_ext_str(unibi_term *ut, const char *name)
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return -1;
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}
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/// Several entries in terminfo are known to be deficient or outright wrong,
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/// unfortunately; and several terminal emulators falsely announce incorrect
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/// terminal types. So patch the terminfo records after loading from an
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/// external or a built-in database. In an ideal world, the real terminfo data
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/// would be correct and complete, and this function would be almost empty.
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/// Patches the terminfo records after loading from system or built-in db.
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/// Several entries in terminfo are known to be deficient or outright wrong;
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/// and several terminal emulators falsely announce incorrect terminal types.
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static void patch_terminfo_bugs(TUIData *data, const char *term,
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const char *colorterm, long vte_version,
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bool konsole, bool iterm_env)
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@ -1304,6 +1303,11 @@ static void patch_terminfo_bugs(TUIData *data, const char *term,
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}
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}
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if (!true_xterm) {
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// Cannot trust terminfo; safer to disable BCE. #7624
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unibi_set_bool(ut, unibi_back_color_erase, false);
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}
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if (xterm) {
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// Termit, LXTerminal, GTKTerm2, GNOME Terminal, MATE Terminal, roxterm,
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// and EvilVTE falsely claim to be xterm and do not support important xterm
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@ -1397,11 +1401,9 @@ static void patch_terminfo_bugs(TUIData *data, const char *term,
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#define XTERM_SETAB_16 \
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"\x1b[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e39%;m"
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// Terminals where there is actually 256-colour SGR support despite what
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// the terminfo record may say.
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// Terminals with 256-colour SGR support despite what terminfo says.
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if (unibi_get_num(ut, unibi_max_colors) < 256) {
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// See http://fedoraproject.org/wiki/Features/256_Color_Terminals for
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// more on this.
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// See http://fedoraproject.org/wiki/Features/256_Color_Terminals
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if (true_xterm || iterm || iterm_pretending_xterm) {
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unibi_set_num(ut, unibi_max_colors, 256);
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unibi_set_str(ut, unibi_set_a_foreground, XTERM_SETAF_256_COLON);
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@ -1417,8 +1419,7 @@ static void patch_terminfo_bugs(TUIData *data, const char *term,
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unibi_set_str(ut, unibi_set_a_background, XTERM_SETAB_256);
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}
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}
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// Terminals where there is actually 16-colour SGR support despite what
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// the terminfo record may say.
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// Terminals with 16-colour SGR support despite what terminfo says.
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if (unibi_get_num(ut, unibi_max_colors) < 16) {
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if (colorterm) {
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unibi_set_num(ut, unibi_max_colors, 16);
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@ -1427,9 +1428,8 @@ static void patch_terminfo_bugs(TUIData *data, const char *term,
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}
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}
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// Some terminals can not currently be trusted to report if they support
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// DECSCUSR or not. So we need to have a blacklist for when we should not
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// trust the reported features.
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// Some terminals cannot be trusted to report DECSCUSR support. So we keep
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// blacklist for when we should not trust the reported features.
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if (!((vte_version != 0 && vte_version < 3900) || konsole)) {
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// Dickey ncurses terminfo has included the Ss and Se capabilities,
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// pioneered by tmux, since 2011-07-14. So adding them to terminal types,
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