1 files changed, 85 insertions, 0 deletions
diff --git a/gfx/harfbuzz/src/hb-string-array.hh b/gfx/harfbuzz/src/hb-string-array.hh
new file mode 100644
index 0000000000..e7ac119232
--- /dev/null
+++ b/gfx/harfbuzz/src/hb-string-array.hh
@@ -0,0 +1,85 @@
+/*
+ * Copyright © 2017  Google, Inc.
+ *
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_STRING_ARRAY_HH
+#if 0 /* Make checks happy. */
+#define HB_STRING_ARRAY_HH
+#endif
+
+#include "hb.hh"
+
+/* Based on Bruno Haible's code in Appendix B of Ulrich Drepper's dsohowto.pdf:
+ * https://software.intel.com/sites/default/files/m/a/1/e/dsohowto.pdf */
+
+#define HB_STRING_ARRAY_TYPE_NAME	HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr_t)
+#define HB_STRING_ARRAY_POOL_NAME	HB_PASTE(HB_STRING_ARRAY_NAME, _msgstr)
+#define HB_STRING_ARRAY_OFFS_NAME	HB_PASTE(HB_STRING_ARRAY_NAME, _msgidx)
+#define HB_STRING_ARRAY_LENG_NAME	HB_PASTE(HB_STRING_ARRAY_NAME, _length)
+
+static const union HB_STRING_ARRAY_TYPE_NAME {
+  struct {
+/* I like to avoid storing the nul-termination byte since we don't need it,
+ * but C++ does not allow that.
+ * https://stackoverflow.com/q/28433862
+ */
+#define _S(s) char HB_PASTE (str, __LINE__)[sizeof (s)];
+#include HB_STRING_ARRAY_LIST
+#undef _S
+  } st;
+  char str[HB_VAR_ARRAY];
+}
+HB_STRING_ARRAY_POOL_NAME =
+{
+  {
+#define _S(s) s,
+#include HB_STRING_ARRAY_LIST
+#undef _S
+  }
+};
+static const unsigned int HB_STRING_ARRAY_OFFS_NAME[] =
+{
+#define _S(s) offsetof (union HB_STRING_ARRAY_TYPE_NAME, st.HB_PASTE(str, __LINE__)),
+#include HB_STRING_ARRAY_LIST
+#undef _S
+  sizeof (HB_STRING_ARRAY_TYPE_NAME)
+};
+
+static const unsigned int HB_STRING_ARRAY_LENG_NAME = ARRAY_LENGTH_CONST (HB_STRING_ARRAY_OFFS_NAME) - 1;
+
+static inline hb_bytes_t
+HB_STRING_ARRAY_NAME (unsigned int i)
+{
+  assert (i < ARRAY_LENGTH (HB_STRING_ARRAY_OFFS_NAME) - 1);
+  return hb_bytes_t (HB_STRING_ARRAY_POOL_NAME.str + HB_STRING_ARRAY_OFFS_NAME[i],
+		     HB_STRING_ARRAY_OFFS_NAME[i + 1] - HB_STRING_ARRAY_OFFS_NAME[i] - 1);
+}
+
+#undef HB_STRING_ARRAY_TYPE_NAME
+#undef HB_STRING_ARRAY_POOL_NAME
+#undef HB_STRING_ARRAY_OFFS_NAME
+#undef HB_STRING_ARRAY_LENG_NAME
+
+#endif /* HB_STRING_ARRAY_HH */