+ {
+ /*
+ * The ugly business of blacklisting individual fonts' tables happen here!
+ * See this thread for why we finally had to bend in and do this:
+ * https://lists.freedesktop.org/archives/harfbuzz/2016-February/005489.html
+ */
+ unsigned int gdef_len = hb_blob_get_length (layout->gdef_blob);
+ unsigned int gsub_len = hb_blob_get_length (layout->gsub_blob);
+ unsigned int gpos_len = hb_blob_get_length (layout->gpos_blob);
+ if (0
+ /* sha1sum:c5ee92f0bca4bfb7d06c4d03e8cf9f9cf75d2e8a Windows 7? timesi.ttf */
+ || (442 == gdef_len && 42038 == gpos_len && 2874 == gsub_len)
+ /* sha1sum:37fc8c16a0894ab7b749e35579856c73c840867b Windows 7? timesbi.ttf */
+ || (430 == gdef_len && 40662 == gpos_len && 2874 == gsub_len)
+ /* sha1sum:19fc45110ea6cd3cdd0a5faca256a3797a069a80 Windows 7 timesi.ttf */
+ || (442 == gdef_len && 39116 == gpos_len && 2874 == gsub_len)
+ /* sha1sum:6d2d3c9ed5b7de87bc84eae0df95ee5232ecde26 Windows 7 timesbi.ttf */
+ || (430 == gdef_len && 39374 == gpos_len && 2874 == gsub_len)
+ /* sha1sum:8583225a8b49667c077b3525333f84af08c6bcd8 OS X 10.11.3 Times New Roman Italic.ttf */
+ || (490 == gdef_len && 41638 == gpos_len && 3046 == gsub_len)
+ /* sha1sum:ec0f5a8751845355b7c3271d11f9918a966cb8c9 OS X 10.11.3 Times New Roman Bold Italic.ttf */
+ || (478 == gdef_len && 41902 == gpos_len && 3046 == gsub_len)
+ )
+ {
+ /* In certain versions of Times New Roman Italic and Bold Italic,
+ * ASCII double quotation mark U+0022, mapped to glyph 5, has wrong
+ * glyph class 3 (mark) in GDEF. Nuke the GDEF to avoid zero-width
+ * double-quote. See:
+ * https://lists.freedesktop.org/archives/harfbuzz/2016-February/005489.html
+ */
+ if (3 == layout->gdef->get_glyph_class (5))
+ layout->gdef = &OT::Null(OT::GDEF);
+ }
+ }
+