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Add tests for glyph_matches_dot_liga_final_component

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zhaolei
2026-04-26 15:13:29 +08:00
parent b67f479040
commit 5c591d5355
2 changed files with 5 additions and 33 deletions
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34
kitty/fonts.c
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@@ -1489,35 +1489,6 @@ ligature_type_for_glyph(hb_font_t *hbf, glyph_index glyph_id, SpacerStrategy str
return ligature_type_from_glyph_name(glyph_name, strategy); return ligature_type_from_glyph_name(glyph_name, strategy);
} }
static bool
dot_liga_final_component(const char *glyph_name, char *output, size_t output_sz) {
static const char suffix[] = ".liga";
static const size_t suffix_len = sizeof(suffix) - 1;
size_t len = strlen(glyph_name);
if (len <= suffix_len || strcmp(glyph_name + len - suffix_len, suffix) != 0) return false;
len -= suffix_len;
const char *start = glyph_name;
for (const char *p = glyph_name; p < glyph_name + len; p++) {
if (*p == '_') start = p + 1;
}
const size_t component_len = (size_t)(glyph_name + len - start);
if (!component_len || component_len + 1 >= output_sz) return false;
memcpy(output, start, component_len);
output[component_len] = 0;
return true;
}
static bool
glyph_matches_dot_liga_final_component(hb_font_t *hbf, glyph_index dot_liga_glyph_id, glyph_index current_glyph_id) {
// For .liga + placeholder + final glyph cases
char dot_liga_name[256], current_name[256], final_component[256];
dot_liga_name[sizeof(dot_liga_name)-1] = 0; current_name[sizeof(current_name)-1] = 0;
hb_font_glyph_to_string(hbf, dot_liga_glyph_id, dot_liga_name, sizeof(dot_liga_name) - 1);
if (!dot_liga_final_component(dot_liga_name, final_component, sizeof(final_component))) return false;
hb_font_glyph_to_string(hbf, current_glyph_id, current_name, sizeof(current_name) - 1);
return strcmp(final_component, current_name) == 0;
}
#define L INFINITE_LIGATURE_START #define L INFINITE_LIGATURE_START
#define M INFINITE_LIGATURE_MIDDLE #define M INFINITE_LIGATURE_MIDDLE
#define R INFINITE_LIGATURE_END #define R INFINITE_LIGATURE_END
@@ -1662,10 +1633,7 @@ group_normal(Font *font, hb_font_t *hbf, const TextCache *tc, ListOfChars *lc) {
else if (font->spacer_strategy == SPACERS_BEFORE) add_to_current_group = G(prev_was_empty); else if (font->spacer_strategy == SPACERS_BEFORE) add_to_current_group = G(prev_was_empty);
else add_to_current_group = is_empty; else add_to_current_group = is_empty;
} else { } else {
add_to_current_group = !G(prev_was_special) || !current_group->num_cells || ( add_to_current_group = !G(prev_was_special) || !current_group->num_cells;
G(prev_was_empty) && current_group->has_special_glyph &&
glyph_matches_dot_liga_final_component(hbf, G(info)[current_group->first_glyph_idx].codepoint, glyph_id)
);
} }
} }
#if 0 #if 0

4
kitty_tests/fonts.py
View File

@@ -411,6 +411,10 @@ class Rendering(FontBaseTest):
self.assertNotEqual(colon_glyph, ss(':', font='FiraCode-Medium.otf')[0][2]) self.assertNotEqual(colon_glyph, ss(':', font='FiraCode-Medium.otf')[0][2])
self.ae(colon_glyph, 1031) self.ae(colon_glyph, 1031)
self.ae(groups('9:30', font='FiraCode-Medium.otf'), [(1, 1), (1, 1), (1, 1), (1, 1)]) self.ae(groups('9:30', font='FiraCode-Medium.otf'), [(1, 1), (1, 1), (1, 1), (1, 1)])
self.ae(groups('#_(', font='FiraCode-Medium.otf'), [(3, 3)])
self.ae(groups('a#_(b', font='FiraCode-Medium.otf'), [(1, 1), (3, 3), (1, 1)])
self.ae(groups('<*>>', font='FiraCode-Medium.otf'), [(3, 3), (1, 1)])
self.ae(groups('a<*>>b', font='FiraCode-Medium.otf'), [(1, 1), (3, 3), (1, 1), (1, 1)])
self.ae(groups('|\U0001F601|\U0001F64f|\U0001F63a|'), [(1, 1), (2, 1), (1, 1), (2, 1), (1, 1), (2, 1), (1, 1)]) self.ae(groups('|\U0001F601|\U0001F64f|\U0001F63a|'), [(1, 1), (2, 1), (1, 1), (2, 1), (1, 1), (2, 1), (1, 1)])
self.ae(groups('He\u0347\u0305llo\u0337,', font='LiberationMono-Regular.ttf'), self.ae(groups('He\u0347\u0305llo\u0337,', font='LiberationMono-Regular.ttf'),