1 files changed, 111 insertions, 0 deletions
diff --git a/js/src/irregexp/imported/special-case.cc b/js/src/irregexp/imported/special-case.cc
new file mode 100644
index 0000000000..f5a9928b3a
--- /dev/null
+++ b/js/src/irregexp/imported/special-case.cc
@@ -0,0 +1,111 @@
+// Copyright 2020 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that
+// can be found in the LICENSE file.
+
+// Automatically generated by regexp/gen-regexp-special-case.cc
+
+// The following functions are used to build UnicodeSets
+// for special cases where the case-folding algorithm used by
+// UnicodeSet::closeOver(USET_CASE_INSENSITIVE) does not match
+// the algorithm defined in ECMAScript 2020 21.2.2.8.2 (Runtime
+// Semantics: Canonicalize) step 3.
+
+#ifdef V8_INTL_SUPPORT
+#include "irregexp/imported/special-case.h"
+
+#include "unicode/uniset.h"
+namespace v8 {
+namespace internal {
+
+icu::UnicodeSet BuildIgnoreSet() {
+  icu::UnicodeSet set;
+  set.add(0xdf);
+  set.add(0x17f);
+  set.add(0x390);
+  set.add(0x3b0);
+  set.add(0x3f4);
+  set.add(0x1e9e);
+  set.add(0x1f80, 0x1faf);
+  set.add(0x1fb3);
+  set.add(0x1fbc);
+  set.add(0x1fc3);
+  set.add(0x1fcc);
+  set.add(0x1fd3);
+  set.add(0x1fe3);
+  set.add(0x1ff3);
+  set.add(0x1ffc);
+  set.add(0x2126);
+  set.add(0x212a, 0x212b);
+  set.add(0xfb05, 0xfb06);
+  set.freeze();
+  return set;
+}
+
+struct IgnoreSetData {
+  IgnoreSetData() : set(BuildIgnoreSet()) {}
+  const icu::UnicodeSet set;
+};
+
+//static
+const icu::UnicodeSet& RegExpCaseFolding::IgnoreSet() {
+  static base::LazyInstance<IgnoreSetData>::type set =
+      LAZY_INSTANCE_INITIALIZER;
+  return set.Pointer()->set;
+}
+
+icu::UnicodeSet BuildSpecialAddSet() {
+  icu::UnicodeSet set;
+  set.add(0x4b);
+  set.add(0x53);
+  set.add(0x6b);
+  set.add(0x73);
+  set.add(0xc5);
+  set.add(0xe5);
+  set.add(0x398);
+  set.add(0x3a9);
+  set.add(0x3b8);
+  set.add(0x3c9);
+  set.add(0x3d1);
+  set.freeze();
+  return set;
+}
+
+struct SpecialAddSetData {
+  SpecialAddSetData() : set(BuildSpecialAddSet()) {}
+  const icu::UnicodeSet set;
+};
+
+//static
+const icu::UnicodeSet& RegExpCaseFolding::SpecialAddSet() {
+  static base::LazyInstance<SpecialAddSetData>::type set =
+      LAZY_INSTANCE_INITIALIZER;
+  return set.Pointer()->set;
+}
+
+icu::UnicodeSet BuildUnicodeNonSimpleCloseOverSet() {
+  icu::UnicodeSet set;
+  set.add(0x390);
+  set.add(0x3b0);
+  set.add(0x1fd3);
+  set.add(0x1fe3);
+  set.add(0xfb05, 0xfb06);
+  set.freeze();
+  return set;
+}
+
+struct UnicodeNonSimpleCloseOverSetData {
+  UnicodeNonSimpleCloseOverSetData() : set(BuildUnicodeNonSimpleCloseOverSet()) {}
+  const icu::UnicodeSet set;
+};
+
+//static
+const icu::UnicodeSet& RegExpCaseFolding::UnicodeNonSimpleCloseOverSet() {
+  static base::LazyInstance<UnicodeNonSimpleCloseOverSetData>::type set =
+      LAZY_INSTANCE_INITIALIZER;
+  return set.Pointer()->set;
+}
+
+
+}  // namespace internal
+}  // namespace v8
+#endif  // V8_INTL_SUPPORT