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-rw-r--r--thirdparty/harfbuzz/src/hb-ot-layout.cc44
1 files changed, 20 insertions, 24 deletions
diff --git a/thirdparty/harfbuzz/src/hb-ot-layout.cc b/thirdparty/harfbuzz/src/hb-ot-layout.cc
index 0454af2063..fbdedd0e20 100644
--- a/thirdparty/harfbuzz/src/hb-ot-layout.cc
+++ b/thirdparty/harfbuzz/src/hb-ot-layout.cc
@@ -613,7 +613,7 @@ hb_ot_layout_table_get_feature_tags (hb_face_t *face,
* hb_ot_layout_table_find_feature:
* @face: #hb_face_t to work upon
* @table_tag: #HB_OT_TAG_GSUB or #HB_OT_TAG_GPOS
- * @feature_tag: The #hb_tag_t og the requested feature tag
+ * @feature_tag: The #hb_tag_t of the requested feature tag
* @feature_index: (out): The index of the requested feature
*
* Fetches the index for a given feature tag in the specified face's GSUB table
@@ -688,8 +688,8 @@ hb_ot_layout_script_get_language_tags (hb_face_t *face,
*
* Return value: %true if the language tag is found, %false otherwise
*
- * Since: ??
- * Deprecated: ??
+ * Since: 0.6.0
+ * Deprecated: 2.0.0
**/
hb_bool_t
hb_ot_layout_script_find_language (hb_face_t *face,
@@ -717,10 +717,14 @@ hb_ot_layout_script_find_language (hb_face_t *face,
* @language_tags: The array of language tags
* @language_index: (out): The index of the requested language
*
- * Fetches the index of a given language tag in the specified face's GSUB table
- * or GPOS table, underneath the specified script index.
+ * Fetches the index of the first language tag fom @language_tags that is present
+ * in the specified face's GSUB or GPOS table, underneath the specified script
+ * index.
*
- * Return value: %true if the language tag is found, %false otherwise
+ * If none of the given language tags is found, %false is returned and
+ * @language_index is set to the default language index.
+ *
+ * Return value: %true if one of the given language tags is found, %false otherwise
*
* Since: 2.0.0
**/
@@ -746,7 +750,8 @@ hb_ot_layout_script_select_language (hb_face_t *face,
if (s.find_lang_sys_index (HB_OT_TAG_DEFAULT_LANGUAGE, language_index))
return false;
- if (language_index) *language_index = HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX;
+ if (language_index)
+ *language_index = HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX;
return false;
}
@@ -1013,24 +1018,15 @@ struct hb_collect_features_context_t
}
has_feature_filter = true;
+ hb_set_t features_set;
for (; *features; features++)
- {
- hb_tag_t tag = *features;
- unsigned index;
- g.find_feature_index (tag, &index);
- if (index == OT::Index::NOT_FOUND_INDEX) continue;
+ features_set.add (*features);
- feature_indices_filter.add(index);
- for (int i = (int) index - 1; i >= 0; i--)
- {
- if (g.get_feature_tag (i) != tag) break;
- feature_indices_filter.add(i);
- }
- for (unsigned i = index + 1; i < g.get_feature_count (); i++)
- {
- if (g.get_feature_tag (i) != tag) break;
+ for (unsigned i = 0; i < g.get_feature_count (); i++)
+ {
+ hb_tag_t tag = g.get_feature_tag (i);
+ if (features_set.has (tag))
feature_indices_filter.add(i);
- }
}
}
@@ -2011,14 +2007,14 @@ struct hb_get_glyph_alternates_dispatch_t :
private:
template <typename T, typename ...Ts> auto
_dispatch (const T &obj, hb_priority<1>, Ts&&... ds) HB_AUTO_RETURN
- ( obj.get_glyph_alternates (hb_forward<Ts> (ds)...) )
+ ( obj.get_glyph_alternates (std::forward<Ts> (ds)...) )
template <typename T, typename ...Ts> auto
_dispatch (const T &obj, hb_priority<0>, Ts&&... ds) HB_AUTO_RETURN
( default_return_value () )
public:
template <typename T, typename ...Ts> auto
dispatch (const T &obj, Ts&&... ds) HB_AUTO_RETURN
- ( _dispatch (obj, hb_prioritize, hb_forward<Ts> (ds)...) )
+ ( _dispatch (obj, hb_prioritize, std::forward<Ts> (ds)...) )
};
/**