harfbuzz: check in harfbuzz-ng, add gyp define to use it

third_party/harfbuzz-ng/src/hb-unicode.c

Index: third_party/harfbuzz-ng/src/hb-unicode.c
diff --git a/third_party/harfbuzz-ng/src/hb-unicode.c b/third_party/harfbuzz-ng/src/hb-unicode.c
new file mode 100644
index 0000000000000000000000000000000000000000..2ab308b69004ac8a12518c94cdcbf79f6c77fb50
--- /dev/null
+++ b/third_party/harfbuzz-ng/src/hb-unicode.c
@@ -0,0 +1,364 @@
+/*
+ * Copyright (C) 2009  Red Hat, 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.
+ *
+ * Red Hat Author(s): Behdad Esfahbod
+ */
+
+#include "hb-private.h"
+
+#include "hb-unicode-private.h"
+
+HB_BEGIN_DECLS
+
+
+/*
+ * hb_unicode_funcs_t
+ */
+
+static hb_codepoint_t hb_unicode_get_mirroring_nil (hb_codepoint_t unicode) { return unicode; }
+static hb_category_t hb_unicode_get_general_category_nil (hb_codepoint_t unicode HB_UNUSED) { return HB_CATEGORY_OTHER_LETTER; }
+static hb_script_t hb_unicode_get_script_nil (hb_codepoint_t unicode HB_UNUSED) { return HB_SCRIPT_UNKNOWN; }
+static unsigned int hb_unicode_get_combining_class_nil (hb_codepoint_t unicode HB_UNUSED) { return 0; }
+static unsigned int hb_unicode_get_eastasian_width_nil (hb_codepoint_t unicode HB_UNUSED) { return 1; }
+
+hb_unicode_funcs_t _hb_unicode_funcs_nil = {
+  HB_REFERENCE_COUNT_INVALID, /* ref_count */
+  TRUE, /* immutable */
+  {
+    hb_unicode_get_general_category_nil,
+    hb_unicode_get_combining_class_nil,
+    hb_unicode_get_mirroring_nil,
+    hb_unicode_get_script_nil,
+    hb_unicode_get_eastasian_width_nil
+  }
+};
+
+hb_unicode_funcs_t *
+hb_unicode_funcs_create (void)
+{
+  hb_unicode_funcs_t *ufuncs;
+
+  if (!HB_OBJECT_DO_CREATE (hb_unicode_funcs_t, ufuncs))
+    return &_hb_unicode_funcs_nil;
+
+  ufuncs->v = _hb_unicode_funcs_nil.v;
+
+  return ufuncs;
+}
+
+hb_unicode_funcs_t *
+hb_unicode_funcs_reference (hb_unicode_funcs_t *ufuncs)
+{
+  HB_OBJECT_DO_REFERENCE (ufuncs);
+}
+
+unsigned int
+hb_unicode_funcs_get_reference_count (hb_unicode_funcs_t *ufuncs)
+{
+  HB_OBJECT_DO_GET_REFERENCE_COUNT (ufuncs);
+}
+
+void
+hb_unicode_funcs_destroy (hb_unicode_funcs_t *ufuncs)
+{
+  HB_OBJECT_DO_DESTROY (ufuncs);
+
+  free (ufuncs);
+}
+
+hb_unicode_funcs_t *
+hb_unicode_funcs_copy (hb_unicode_funcs_t *other_ufuncs)
+{
+  hb_unicode_funcs_t *ufuncs;
+
+  if (!HB_OBJECT_DO_CREATE (hb_unicode_funcs_t, ufuncs))
+    return &_hb_unicode_funcs_nil;
+
+  ufuncs->v = other_ufuncs->v;
+
+  return ufuncs;
+}
+
+void
+hb_unicode_funcs_make_immutable (hb_unicode_funcs_t *ufuncs)
+{
+  if (HB_OBJECT_IS_INERT (ufuncs))
+    return;
+
+  ufuncs->immutable = TRUE;
+}
+
+hb_bool_t
+hb_unicode_funcs_is_immutable (hb_unicode_funcs_t *ufuncs)
+{
+  return ufuncs->immutable;
+}
+
+
+void
+hb_unicode_funcs_set_mirroring_func (hb_unicode_funcs_t *ufuncs,
+				     hb_unicode_get_mirroring_func_t mirroring_func)
+{
+  if (ufuncs->immutable)
+    return;
+
+  ufuncs->v.get_mirroring = mirroring_func ? mirroring_func : hb_unicode_get_mirroring_nil;
+}
+
+void
+hb_unicode_funcs_set_general_category_func (hb_unicode_funcs_t *ufuncs,
+					    hb_unicode_get_general_category_func_t general_category_func)
+{
+  if (ufuncs->immutable)
+    return;
+
+  ufuncs->v.get_general_category = general_category_func ? general_category_func : hb_unicode_get_general_category_nil;
+}
+
+void
+hb_unicode_funcs_set_script_func (hb_unicode_funcs_t *ufuncs,
+				  hb_unicode_get_script_func_t script_func)
+{
+  if (ufuncs->immutable)
+    return;
+
+  ufuncs->v.get_script = script_func ? script_func : hb_unicode_get_script_nil;
+}
+
+void
+hb_unicode_funcs_set_combining_class_func (hb_unicode_funcs_t *ufuncs,
+					   hb_unicode_get_combining_class_func_t combining_class_func)
+{
+  if (ufuncs->immutable)
+    return;
+
+  ufuncs->v.get_combining_class = combining_class_func ? combining_class_func : hb_unicode_get_combining_class_nil;
+}
+
+void
+hb_unicode_funcs_set_eastasian_width_func (hb_unicode_funcs_t *ufuncs,
+					   hb_unicode_get_eastasian_width_func_t eastasian_width_func)
+{
+  if (ufuncs->immutable)
+    return;
+
+  ufuncs->v.get_eastasian_width = eastasian_width_func ? eastasian_width_func : hb_unicode_get_eastasian_width_nil;
+}
+
+
+hb_unicode_get_mirroring_func_t
+hb_unicode_funcs_get_mirroring_func (hb_unicode_funcs_t *ufuncs)
+{
+  return ufuncs->v.get_mirroring;
+}
+
+hb_unicode_get_general_category_func_t
+hb_unicode_funcs_get_general_category_func (hb_unicode_funcs_t *ufuncs)
+{
+  return ufuncs->v.get_general_category;
+}
+
+hb_unicode_get_script_func_t
+hb_unicode_funcs_get_script_func (hb_unicode_funcs_t *ufuncs)
+{
+  return ufuncs->v.get_script;
+}
+
+hb_unicode_get_combining_class_func_t
+hb_unicode_funcs_get_combining_class_func (hb_unicode_funcs_t *ufuncs)
+{
+  return ufuncs->v.get_combining_class;
+}
+
+hb_unicode_get_eastasian_width_func_t
+hb_unicode_funcs_get_eastasian_width_func (hb_unicode_funcs_t *ufuncs)
+{
+  return ufuncs->v.get_eastasian_width;
+}
+
+
+
+hb_codepoint_t
+hb_unicode_get_mirroring (hb_unicode_funcs_t *ufuncs,
+			  hb_codepoint_t unicode)
+{
+  return ufuncs->v.get_mirroring (unicode);
+}
+
+hb_category_t
+hb_unicode_get_general_category (hb_unicode_funcs_t *ufuncs,
+				 hb_codepoint_t unicode)
+{
+  return ufuncs->v.get_general_category (unicode);
+}
+
+hb_script_t
+hb_unicode_get_script (hb_unicode_funcs_t *ufuncs,
+		       hb_codepoint_t unicode)
+{
+  return ufuncs->v.get_script (unicode);
+}
+
+unsigned int
+hb_unicode_get_combining_class (hb_unicode_funcs_t *ufuncs,
+				hb_codepoint_t unicode)
+{
+  return ufuncs->v.get_combining_class (unicode);
+}
+
+unsigned int
+hb_unicode_get_eastasian_width (hb_unicode_funcs_t *ufuncs,
+				hb_codepoint_t unicode)
+{
+  return ufuncs->v.get_eastasian_width (unicode);
+}
+
+
+
+#define LTR HB_DIRECTION_LTR
+#define RTL HB_DIRECTION_RTL
+const hb_direction_t horiz_dir[] =
+{
+  LTR,	/* Zyyy */
+  LTR,	/* Qaai */
+  RTL,	/* Arab */
+  LTR,	/* Armn */
+  LTR,	/* Beng */
+  LTR,	/* Bopo */
+  LTR,	/* Cher */
+  LTR,	/* Qaac */
+  LTR,	/* Cyrl (Cyrs) */
+  LTR,	/* Dsrt */
+  LTR,	/* Deva */
+  LTR,	/* Ethi */
+  LTR,	/* Geor (Geon, Geoa) */
+  LTR,	/* Goth */
+  LTR,	/* Grek */
+  LTR,	/* Gujr */
+  LTR,	/* Guru */
+  LTR,	/* Hani */
+  LTR,	/* Hang */
+  RTL,	/* Hebr */
+  LTR,	/* Hira */
+  LTR,	/* Knda */
+  LTR,	/* Kana */
+  LTR,	/* Khmr */
+  LTR,	/* Laoo */
+  LTR,	/* Latn (Latf, Latg) */
+  LTR,	/* Mlym */
+  LTR,	/* Mong */
+  LTR,	/* Mymr */
+  LTR,	/* Ogam */
+  LTR,	/* Ital */
+  LTR,	/* Orya */
+  LTR,	/* Runr */
+  LTR,	/* Sinh */
+  RTL,	/* Syrc (Syrj, Syrn, Syre) */
+  LTR,	/* Taml */
+  LTR,	/* Telu */
+  RTL,	/* Thaa */
+  LTR,	/* Thai */
+  LTR,	/* Tibt */
+  LTR,	/* Cans */
+  LTR,	/* Yiii */
+  LTR,	/* Tglg */
+  LTR,	/* Hano */
+  LTR,	/* Buhd */
+  LTR,	/* Tagb */
+
+  /* Unicode-4.0 additions */
+  LTR,	/* Brai */
+  RTL,	/* Cprt */
+  LTR,	/* Limb */
+  LTR,	/* Osma */
+  LTR,	/* Shaw */
+  LTR,	/* Linb */
+  LTR,	/* Tale */
+  LTR,	/* Ugar */
+
+  /* Unicode-4.1 additions */
+  LTR,	/* Talu */
+  LTR,	/* Bugi */
+  LTR,	/* Glag */
+  LTR,	/* Tfng */
+  LTR,	/* Sylo */
+  LTR,	/* Xpeo */
+  LTR,	/* Khar */
+
+  /* Unicode-5.0 additions */
+  LTR,	/* Zzzz */
+  LTR,	/* Bali */
+  LTR,	/* Xsux */
+  RTL,	/* Phnx */
+  LTR,	/* Phag */
+  RTL,	/* Nkoo */
+
+  /* Unicode-5.1 additions */
+  LTR,	/* Kali */
+  LTR,	/* Lepc */
+  LTR,	/* Rjng */
+  LTR,	/* Sund */
+  LTR,	/* Saur */
+  LTR,	/* Cham */
+  LTR,	/* Olck */
+  LTR,	/* Vaii */
+  LTR,	/* Cari */
+  LTR,	/* Lyci */
+  LTR,	/* Lydi */
+
+  /* Unicode-5.2 additions */
+  RTL,	/* Avst */
+  LTR,	/* Bamu */
+  LTR,	/* Egyp */
+  RTL,	/* Armi */
+  RTL,	/* Phli */
+  RTL,	/* Prti */
+  LTR,	/* Java */
+  LTR,	/* Kthi */
+  LTR,	/* Lisu */
+  LTR,	/* Mtei */
+  RTL,	/* Sarb */
+  RTL,	/* Orkh */
+  RTL,	/* Samr */
+  LTR,	/* Lana */
+  LTR,	/* Tavt */
+
+  /* Unicode-6.0 additions */
+  LTR,	/* Batk */
+  LTR,	/* Brah */
+  RTL 	/* Mand */
+};
+#undef LTR
+#undef RTL
+
+hb_direction_t
+_hb_script_get_horizontal_direction (hb_script_t script)
+{
+  if (unlikely ((unsigned int) script >= ARRAY_LENGTH (horiz_dir)))
+    return HB_DIRECTION_LTR;
+
+  return horiz_dir[script];
+}
+
+
+HB_END_DECLS