[API] Add hb_buffer_add_latin1()
This is by no ways to promote non-Unicode encodings. This is an entry
point that takes Unicode codepoints that happen to all be the first
256 characters and hence fit in 8bit strings. This is useful eg in Chrome
where strings that can fit in 8bit are implemented that way, and this
avoids copying into UTF-8 or UTF-16.
Perhaps we should rename this to hb_buffer_add_codepoints8(). I'm also
curious if anyone would be really interested in hb_buffer_add_codepoints16().
Please discuss!
diff --git a/src/hb-buffer.h b/src/hb-buffer.h
index 7b0c920..e5b46d8 100644
--- a/src/hb-buffer.h
+++ b/src/hb-buffer.h
@@ -253,6 +253,14 @@
unsigned int item_offset,
int item_length);
+/* Allows only access to first 256 Unicode codepoints. */
+void
+hb_buffer_add_latin1 (hb_buffer_t *buffer,
+ const uint8_t *text,
+ int text_length,
+ unsigned int item_offset,
+ int item_length);
+
/* Like add_utf32 but does NOT check for invalid Unicode codepoints. */
void
hb_buffer_add_codepoints (hb_buffer_t *buffer,
