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-rw-r--r--src/nvim/tui/terminfo.c23
-rw-r--r--src/nvim/tui/tui.c36
2 files changed, 33 insertions, 26 deletions
diff --git a/src/nvim/tui/terminfo.c b/src/nvim/tui/terminfo.c
index 6b0be50917..75e9a2d8da 100644
--- a/src/nvim/tui/terminfo.c
+++ b/src/nvim/tui/terminfo.c
@@ -8,6 +8,7 @@
#include <unibilium.h>
+#include "nvim/log.h"
#include "nvim/tui/terminfo.h"
#ifdef INCLUDE_GENERATED_DECLARATIONS
@@ -77,8 +78,6 @@ static const signed char ansi_terminfo[] = {
26, 1, 40, 0, 23, 0, 16, 0, 125, 1, 68, 2, 97, 110, 115, 105, 124, 97, 110, 115, 105, 47, 112, 99, 45, 116, 101, 114, 109, 32, 99, 111, 109, 112, 97, 116, 105, 98, 108, 101, 32, 119, 105, 116, 104, 32, 99, 111, 108, 111, 114, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 80, 0, 8, 0, 24, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 8, 0, 64, 0, 3, 0, 0, 0, 4, 0, 6, 0, -1, -1, 8, 0, 13, 0, 20, 0, 24, 0, 28, 0, -1, -1, 39, 0, 56, 0, 60, 0, -1, -1, 64, 0, -1, -1, -1, -1, 68, 0, -1, -1, 72, 0, -1, -1, 76, 0, 80, 0, -1, -1, -1, -1, 84, 0, 90, 0, 95, 0, -1, -1, -1, -1, -1, -1, -1, -1, 100, 0, -1, -1, 105, 0, 110, 0, 115, 0, 120, 0,-127, 0,-121, 0, -1, -1, -1, -1, -1, -1,-113, 0,-109, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,-105, 0, -1, -1,-101, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -99, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -95, 0, -91, 0, -1, -1, -87, 0, -1, -1, -1, -1, -1, -1, -83, 0, -1, -1, -1, -1, -1, -1, -79, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -75, 0, -1, -1, -70, 0, -61, 0, -52, 0, -43, 0, -34, 0, -25, 0, -16, 0, -7, 0, 2, 1, 11, 1, -1, -1, -1, -1, -1, -1, -1, -1, 20, 1, 25, 1, 30, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 50, 1, -1, -1, 61, 1, -1, -1, 63, 1,-107, 1, -1, -1,-104, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,-100, 1, -1, -1, -37, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -33, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -28, 1, -17, 1, -12, 1, 7, 2, 11, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 20, 2, 30, 2, -1, -1, -1, -1, -1, -1, 40, 2, 44, 2, 48, 2, 52, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 56, 2, 62, 2, 27, 91, 90, 0, 7, 0, 13, 0, 27, 91, 51, 103, 0, 27, 91, 72, 27, 91, 74, 0, 27, 91, 75, 0, 27, 91, 74, 0, 27, 91, 37, 105, 37, 112, 49, 37, 100, 71, 0, 27, 91, 37, 105, 37, 112, 49, 37, 100, 59, 37, 112, 50, 37, 100, 72, 0, 27, 91, 66, 0, 27, 91, 72, 0, 27, 91, 68, 0, 27, 91, 67, 0, 27, 91, 65, 0, 27, 91, 80, 0, 27, 91, 77, 0, 27, 91, 49, 49, 109, 0, 27, 91, 53, 109, 0, 27, 91, 49, 109, 0, 27, 91, 56, 109, 0, 27, 91, 55, 109, 0, 27, 91, 55, 109, 0, 27, 91, 52, 109, 0, 27, 91, 37, 112, 49, 37, 100, 88, 0, 27, 91, 49, 48, 109, 0, 27, 91, 48, 59, 49, 48, 109, 0, 27, 91, 109, 0, 27, 91, 109, 0, 27, 91, 76, 0, 8, 0, 27, 91, 66, 0, 27, 91, 72, 0, 27, 91, 76, 0, 27, 91, 68, 0, 27, 91, 67, 0, 27, 91, 65, 0, 13, 27, 91, 83, 0, 27, 91, 37, 112, 49, 37, 100, 80, 0, 27, 91, 37, 112, 49, 37, 100, 77, 0, 27, 91, 37, 112, 49, 37, 100, 66, 0, 27, 91, 37, 112, 49, 37, 100, 64, 0, 27, 91, 37, 112, 49, 37, 100, 83, 0, 27, 91, 37, 112, 49, 37, 100, 76, 0, 27, 91, 37, 112, 49, 37, 100, 68, 0, 27, 91, 37, 112, 49, 37, 100, 67, 0, 27, 91, 37, 112, 49, 37, 100, 84, 0, 27, 91, 37, 112, 49, 37, 100, 65, 0, 27, 91, 52, 105, 0, 27, 91, 53, 105, 0, 37, 112, 49, 37, 99, 27, 91, 37, 112, 50, 37, 123, 49, 125, 37, 45, 37, 100, 98, 0, 27, 91, 37, 105, 37, 112, 49, 37, 100, 100, 0, 10, 0, 27, 91, 48, 59, 49, 48, 37, 63, 37, 112, 49, 37, 116, 59, 55, 37, 59, 37, 63, 37, 112, 50, 37, 116, 59, 52, 37, 59, 37, 63, 37, 112, 51, 37, 116, 59, 55, 37, 59, 37, 63, 37, 112, 52, 37, 116, 59, 53, 37, 59, 37, 63, 37, 112, 54, 37, 116, 59, 49, 37, 59, 37, 63, 37, 112, 55, 37, 116, 59, 56, 37, 59, 37, 63, 37, 112, 57, 37, 116, 59, 49, 49, 37, 59, 109, 0, 27, 72, 0, 27, 91, 73, 0, 43, 16, 44, 17, 45, 24, 46, 25, 48, -37, 96, 4, 97, -79, 102, -8, 103, -15, 104, -80, 106, -39, 107, -65, 108, -38, 109, -64, 110, -59, 111, 126, 112, -60, 113, -60, 114, -60, 115, 95, 116, -61, 117, -76, 118, -63, 119, -62, 120, -77, 121, -13, 122, -14, 123, -29, 124, -40, 125,-100, 126, -2, 0, 27, 91, 90, 0, 27, 91, 49, 75, 0, 27, 91, 37, 105, 37, 100, 59, 37, 100, 82, 0, 27, 91, 54, 110, 0, 27, 91, 63, 37, 91, 59, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 93, 99, 0, 27, 91, 99, 0, 27, 91, 51, 57, 59, 52, 57, 109, 0, 27, 91, 51, 37, 112, 49, 37, 100, 109, 0, 27, 91, 52, 37, 112, 49, 37, 100, 109, 0, 27, 40, 66, 0, 27, 41, 66, 0, 27, 42, 66, 0, 27, 43, 66, 0, 27, 91, 49, 49, 109, 0, 27, 91, 49, 48, 109, 0
};
-// Per the commentary in terminfo, only a minus sign is a true suffix
-// separator.
bool terminfo_is_term_family(const char *term, const char *family)
{
if (!term) {
@@ -88,15 +87,14 @@ bool terminfo_is_term_family(const char *term, const char *family)
size_t flen = strlen(family);
return tlen >= flen
&& 0 == memcmp(term, family, flen) \
+ // Per the commentary in terminfo, minus sign is the suffix separator.
&& ('\0' == term[flen] || '-' == term[flen]);
}
-/// Load one of the built-in terminfo entries when unibilium has failed to
-/// load a terminfo record from an external database, as it does on termcap-
-/// -only systems. We do not do any fancy recognition of xterm pretenders
-/// here. An external terminfo database would not do that, and we want to
-/// behave as much like an external terminfo database as possible.
-unibi_term *load_builtin_terminfo(const char * term)
+/// Loads a built-in terminfo db when we (unibilium) failed to load a terminfo
+/// record from the environment (termcap systems, unrecognized $TERM, …).
+/// We do not attempt to detect xterm pretenders here.
+static unibi_term *terminfo_builtin(const char *term)
{
if (terminfo_is_term_family(term, "xterm")) {
return unibi_from_mem((const char *)xterm_256colour_terminfo,
@@ -137,3 +135,12 @@ unibi_term *load_builtin_terminfo(const char * term)
sizeof ansi_terminfo);
}
}
+
+unibi_term *terminfo_from_builtin(const char *term)
+{
+ unibi_term *ut = terminfo_builtin(term);
+ // Disable BCE by default (for built-in terminfos). #7624
+ // https://github.com/kovidgoyal/kitty/issues/160#issuecomment-346470545
+ unibi_set_bool(ut, unibi_back_color_erase, false);
+ return ut;
+}
diff --git a/src/nvim/tui/tui.c b/src/nvim/tui/tui.c
index 7ff426239a..c2e597c36c 100644
--- a/src/nvim/tui/tui.c
+++ b/src/nvim/tui/tui.c
@@ -194,7 +194,7 @@ static void terminfo_start(UI *ui)
const char *term = os_getenv("TERM");
data->ut = unibi_from_env();
if (!data->ut) {
- data->ut = load_builtin_terminfo(term);
+ data->ut = terminfo_from_builtin(term);
}
// None of the following work over SSH; see :help TERM .
const char *colorterm = os_getenv("COLORTERM");
@@ -940,9 +940,10 @@ static void tui_scroll(UI *ui, Integer count)
}
cursor_goto(ui, saved_row, saved_col);
- if (!scroll_clears_to_current_colour) {
- // This is required because scrolling will leave wrong background in the
- // cleared area on non-bge terminals.
+ if (!scroll_clears_to_current_colour && grid->bg != -1) {
+ // Scrolling may leave wrong background in the cleared area on non-bge
+ // terminals. Update the cleared area of the terminal if its builtin
+ // scrolling facility was used and bg color is not the default.
clear_region(ui, clear_top, clear_bot, grid->left, grid->right);
}
} else {
@@ -1234,11 +1235,9 @@ static int unibi_find_ext_str(unibi_term *ut, const char *name)
return -1;
}
-/// Several entries in terminfo are known to be deficient or outright wrong,
-/// unfortunately; and several terminal emulators falsely announce incorrect
-/// terminal types. So patch the terminfo records after loading from an
-/// external or a built-in database. In an ideal world, the real terminfo data
-/// would be correct and complete, and this function would be almost empty.
+/// Patches the terminfo records after loading from system or built-in db.
+/// Several entries in terminfo are known to be deficient or outright wrong;
+/// and several terminal emulators falsely announce incorrect terminal types.
static void patch_terminfo_bugs(TUIData *data, const char *term,
const char *colorterm, long vte_version,
bool konsole, bool iterm_env)
@@ -1304,6 +1303,11 @@ static void patch_terminfo_bugs(TUIData *data, const char *term,
}
}
+ if (!true_xterm) {
+ // Cannot trust terminfo; safer to disable BCE. #7624
+ unibi_set_bool(ut, unibi_back_color_erase, false);
+ }
+
if (xterm) {
// Termit, LXTerminal, GTKTerm2, GNOME Terminal, MATE Terminal, roxterm,
// and EvilVTE falsely claim to be xterm and do not support important xterm
@@ -1397,11 +1401,9 @@ static void patch_terminfo_bugs(TUIData *data, const char *term,
#define XTERM_SETAB_16 \
"\x1b[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e39%;m"
- // Terminals where there is actually 256-colour SGR support despite what
- // the terminfo record may say.
+ // Terminals with 256-colour SGR support despite what terminfo says.
if (unibi_get_num(ut, unibi_max_colors) < 256) {
- // See http://fedoraproject.org/wiki/Features/256_Color_Terminals for
- // more on this.
+ // See http://fedoraproject.org/wiki/Features/256_Color_Terminals
if (true_xterm || iterm || iterm_pretending_xterm) {
unibi_set_num(ut, unibi_max_colors, 256);
unibi_set_str(ut, unibi_set_a_foreground, XTERM_SETAF_256_COLON);
@@ -1417,8 +1419,7 @@ static void patch_terminfo_bugs(TUIData *data, const char *term,
unibi_set_str(ut, unibi_set_a_background, XTERM_SETAB_256);
}
}
- // Terminals where there is actually 16-colour SGR support despite what
- // the terminfo record may say.
+ // Terminals with 16-colour SGR support despite what terminfo says.
if (unibi_get_num(ut, unibi_max_colors) < 16) {
if (colorterm) {
unibi_set_num(ut, unibi_max_colors, 16);
@@ -1427,9 +1428,8 @@ static void patch_terminfo_bugs(TUIData *data, const char *term,
}
}
- // Some terminals can not currently be trusted to report if they support
- // DECSCUSR or not. So we need to have a blacklist for when we should not
- // trust the reported features.
+ // Some terminals cannot be trusted to report DECSCUSR support. So we keep
+ // blacklist for when we should not trust the reported features.
if (!((vte_version != 0 && vte_version < 3900) || konsole)) {
// Dickey ncurses terminfo has included the Ss and Se capabilities,
// pioneered by tmux, since 2011-07-14. So adding them to terminal types,
generated by cgit (git 2.34.1) at 2025-04-30 07:59:56 +0000