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More work on multicell URL detection

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Kovid Goyal 2025-01-12 20:11:52 +05:30
parent 0bf32c6a59
commit cf89dba5af
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1 changed files with 17 additions and 16 deletions
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33
kitty/line.c
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@ -230,21 +230,21 @@ find_colon_slash(Line *self, index_type x, index_type limit, ListOfChars *lc, in
}
static bool
prefix_matches(Line *self, index_type at, const char_type* prefix, index_type prefix_len) {
prefix_matches(Line *self, index_type at, const char_type* prefix, index_type prefix_len, index_type scale) {
if (prefix_len > at) return false;
index_type p, i;
for (p = at - prefix_len, i = 0; i < prefix_len && p < self->xnum; i++, p++) {
if (!cell_is_char(self->cpu_cells + p, prefix[i])) return false;
while (prefix_len--) {
at = prev_char_pos(self, at, 1);
if (at >= self->xnum || cell_scale(self->cpu_cells + at) != scale || !cell_is_char(self->cpu_cells + at, prefix[prefix_len])) return false;
}
return i == prefix_len;
return true;
}
static bool
has_url_prefix_at(Line *self, index_type at, index_type min_prefix_len, index_type *ans) {
has_url_prefix_at(Line *self, index_type at, index_type min_prefix_len, index_type *ans, index_type scale) {
for (size_t i = 0; i < OPT(url_prefixes.num); i++) {
index_type prefix_len = OPT(url_prefixes.values[i].len);
if (at < prefix_len || prefix_len < min_prefix_len) continue;
if (prefix_matches(self, at, OPT(url_prefixes.values[i].string), prefix_len)) { *ans = at - prefix_len; return true; }
if (prefix_matches(self, at, OPT(url_prefixes.values[i].string), prefix_len, scale)) { *ans = at - prefix_len; return true; }
}
return false;
}
@ -252,16 +252,17 @@ has_url_prefix_at(Line *self, index_type at, index_type min_prefix_len, index_ty
#define MIN_URL_LEN 5
static bool
has_url_beyond_colon_slash(Line *self, index_type x, ListOfChars *lc) {
has_url_beyond_colon_slash(Line *self, const index_type x, ListOfChars *lc, const index_type scale) {
unsigned num_of_slashes = 0;
for (index_type i = x; i < MIN(x + MIN_URL_LEN + 3, self->xnum); i++) {
const CPUCell *c = self->cpu_cells + i;
index_type pos = x, num_chars = 0;
while ((pos = next_char_pos(self, pos, 1)) < self->xnum && num_chars++ < MIN_URL_LEN + 2) {
const CPUCell *c = self->cpu_cells + pos;
if (cell_scale(c) != scale) return false;
text_in_cell(c, self->text_cache, lc);
if (num_of_slashes < 3) {
if (!is_hostname_lc(lc)) return false;
if (lc->count == 1 && lc->chars[0] == '/') num_of_slashes++;
}
else {
} else {
for (size_t n = 0; n < lc->count; n++) if (!is_url_char(lc->chars[n])) return false;
}
}
@ -277,12 +278,12 @@ line_url_start_at(Line *self, index_type x, ListOfChars *lc) {
index_type ds_pos = 0, t, scale = cell_scale(self->cpu_cells + x);
// First look for :// ahead of x
ds_pos = find_colon_slash(self, x + OPT(url_prefixes).max_prefix_len + 3, x < 2 ? 0 : x - 2, lc, scale);
if (ds_pos != 0 && has_url_beyond_colon_slash(self, ds_pos, lc)) {
if (has_url_prefix_at(self, ds_pos, ds_pos > x ? ds_pos - x: 0, &t)) return t;
if (ds_pos != 0 && has_url_beyond_colon_slash(self, ds_pos, lc, scale)) {
if (has_url_prefix_at(self, ds_pos, ds_pos > x ? ds_pos - x: 0, &t, scale)) return t;
}
ds_pos = find_colon_slash(self, x, 0, lc, scale);
if (ds_pos == 0 || self->xnum < ds_pos + MIN_URL_LEN + 3 || !has_url_beyond_colon_slash(self, ds_pos, lc)) return self->xnum;
if (has_url_prefix_at(self, ds_pos, 0, &t)) return t;
if (ds_pos == 0 || self->xnum < ds_pos + MIN_URL_LEN + 3 || !has_url_beyond_colon_slash(self, ds_pos, lc, scale)) return self->xnum;
if (has_url_prefix_at(self, ds_pos, 0, &t, scale)) return t;
return self->xnum;
}