I think this patch to fbterm could fix it.
It's based off
http://deb.debian.org/debian/pool/main/f/fbterm/fbterm_1.7.orig.tar.gz
Upstream doesn't seem active so I don't know where to send it to.
There seems to be an unrelated problem, seen on my machine with the
version of fbterm I compiled to test this patch: cursor movement in
fish does not work. But that problem does not exist in the fbterm
(1.7) installed from my package manager. That's why I think the
patch might be enough.
diff --git a/src/lib/vterm.cpp b/src/lib/vterm.cpp
index 3a5dcc7..39d261e 100644
--- a/src/lib/vterm.cpp
+++ b/src/lib/vterm.cpp
@@ -407,7 +407,35 @@ void VTerm::input(const u8 *buf, u32 count)
continue;
}
- do_control_char();
+ if (esc_state == VTerm::ES_CSI_Init || esc_state ==
VTerm::ES_CSI_Parameters || esc_state == VTerm::ES_CSI_Intermediate) {
+ if (esc_state == VTerm::ES_CSI_Init)
+ {
+ this->clear_param();
+ esc_state = VTerm::ES_CSI_Parameters;
+ }
+ if (tc >= 0x40 && tc <= 0x7e)
+ esc_state = ESnormal;
+ else if (tc >= 0x20 && tc <= 0x2f)
+ esc_state = ES_CSI_Intermediate;
+ } else if (esc_state == VTerm::ES_OSC_Init || esc_state ==
VTerm::ES_OSC) {
+ if (esc_state == VTerm::ES_OSC_Init) {
+ this->clear_param();
+ esc_state = VTerm::ES_OSC;
+ }
+ if (tc == 0x07)
+ esc_state = ESnormal;
+ if (esc_state == ES_OSC_Maybe_ST)
+ {
+ if (tc == '\\')
+ esc_state = ESnormal;
+ else
+ esc_state = ES_OSC;
+ }
+ if (tc == 0x1b)
+ esc_state = ES_OSC_Maybe_ST;
+ } else {
+ do_control_char();
+ }
}
update();
diff --git a/src/lib/vterm.h b/src/lib/vterm.h
index 32ffd2a..cdc4bb6 100644
--- a/src/lib/vterm.h
+++ b/src/lib/vterm.h
@@ -185,7 +185,10 @@ private:
static bool init_ambiguous_wide();
typedef enum {
- ESnormal = 0, ESesc, ESsquare, ESnonstd, ESpercent, EScharset,
EShash, ESfunckey, ESkeep
+ ESnormal = 0, ESesc, ESsquare, ESnonstd,
+ ESpercent, EScharset, EShash, ESfunckey, ESkeep,
+ ES_CSI_Init, ES_CSI_Parameters, ES_CSI_Intermediate,
+ ES_OSC_Init, ES_OSC, ES_OSC_Maybe_ST,
} EscapeState;
EscapeState esc_state;
diff --git a/src/lib/vterm_states.cpp b/src/lib/vterm_states.cpp
index 1881490..3bcfcc8 100644
--- a/src/lib/vterm_states.cpp
+++ b/src/lib/vterm_states.cpp
@@ -49,8 +49,8 @@ const VTerm::Sequence VTerm::escape_sequences[] = {
{ static_cast<u16>(-1) },
// ESesc
- { '[', &VTerm::clear_param, ESsquare },
- { ']', &VTerm::clear_param, ESnonstd },
+ { '[', 0, ES_CSI_Init },
+ { ']', 0, ES_OSC_Init },
{ '%', 0, ESpercent },
{ '#', 0, EShash },
{ '(', &VTerm::current_is_g0, EScharset },
