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Fix utf8 decode

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This commit is contained in:
Kovid Goyal
2023-11-05 20:59:49 +05:30
parent 93784903b2
commit f96182cc11
1 changed files with 19 additions and 24 deletions
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43
kitty/vt-parser.c
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@@ -26,7 +26,7 @@
// Macros {{{
#define SET_STATE(x) \
self->vte_state = VTE_##x; self->utf8.state = UTF8_ACCEPT; self->utf8.prev = UTF8_ACCEPT;
self->vte_state = VTE_##x; zero_at_ptr(&self->utf8);
#define DIGIT \
'0': \
@@ -101,8 +101,7 @@ _report_params(PyObject *dump_callback, id_type window_id, const char *name, int
#define REPORT_VA_COMMAND(...) Py_XDECREF(PyObject_CallFunction(self->dump_callback, __VA_ARGS__)); PyErr_Clear();
#define REPORT_DRAW(ch) \
printf("ch: %x\n", ch); \
Py_XDECREF(PyObject_CallFunction(self->dump_callback, "KsC", self->window_id, "draw", (int)ch)); PyErr_Clear();
Py_XDECREF(PyObject_CallFunction(self->dump_callback, "KsC", self->window_id, "draw", ch)); PyErr_Clear();
#define REPORT_PARAMS(name, params, num, is_group, region) _report_params(self->dump_callback, self->window_id, name, params, num_params, is_group, region)
@@ -192,7 +191,7 @@ typedef struct ParsedCSI {
typedef struct PS {
id_type window_id;
struct { UTF8State prev, state; } utf8;
struct { UTF8State prev, state; uint32_t codep; } utf8;
VTEState vte_state;
ParsedCSI csi;
@@ -208,14 +207,11 @@ typedef struct PS {
Screen *screen;
monotonic_t now, new_input_at;
pthread_mutex_t lock;
uint8_t buf[BUF_SZ + 8];
struct {
size_t consumed, pos, sz;
} read;
struct {
size_t offset, sz;
} write;
// The buffer
struct { size_t consumed, pos, sz; } read;
struct { size_t offset, sz; } write;
uint8_t buf[BUF_SZ];
} PS;
static void
@@ -229,20 +225,21 @@ reset_csi(ParsedCSI *csi) {
// Normal mode {{{
static void
draw_byte(PS *self, uint8_t b) {
uint32_t ch;
switch (decode_utf8(&self->utf8.state, &ch, b)) {
draw_byte(PS *self, const uint8_t b) {
switch (decode_utf8(&self->utf8.state, &self->utf8.codep, b)) {
case UTF8_ACCEPT:
REPORT_DRAW(ch);
screen_draw(self->screen, ch, true);
REPORT_DRAW(self->utf8.codep);
screen_draw(self->screen, self->utf8.codep, true);
break;
case UTF8_REJECT: {
bool prev_was_accept = self->utf8.prev == UTF8_ACCEPT;
self->utf8.state = UTF8_ACCEPT; self->utf8.prev = UTF8_ACCEPT;
ch = 0xfffd; // unicode replacement char
REPORT_DRAW(ch);
screen_draw(self->screen, ch, true);
if (!prev_was_accept) draw_byte(self, b);
zero_at_ptr(&self->utf8);
REPORT_DRAW(0xfffd);
screen_draw(self->screen, 0xfffd, true);
if (!prev_was_accept) {
draw_byte(self, b);
return; // so that prev is correct
}
} break;
}
self->utf8.prev = self->utf8.state;
@@ -1640,9 +1637,7 @@ free_vt_parser(Parser* self) {
static void
reset(PS *self) {
self->vte_state = VTE_NORMAL;
self->utf8.state = UTF8_ACCEPT;
self->utf8.prev = UTF8_ACCEPT;
SET_STATE(NORMAL);
reset_csi(&self->csi);
zero_at_ptr(&self->pending_mode);