Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 183 insertions, 0 deletions

diff --git a/storage/SQLCollations.cpp b/storage/SQLCollations.cpp
new file mode 100644
index 0000000000..3cbeafe5d0
--- /dev/null
+++ b/storage/SQLCollations.cpp
@@ -0,0 +1,183 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/intl/Collator.h"
+
+#include "SQLCollations.h"
+
+using mozilla::intl::Collator;
+
+namespace mozilla {
+namespace storage {
+
+////////////////////////////////////////////////////////////////////////////////
+//// Local Helper Functions
+
+namespace {
+
+/**
+ * Helper function for the UTF-8 locale collations.
+ *
+ * @param  aService
+ *         The Service that owns the collator used by this collation.
+ * @param  aLen1
+ *         The number of bytes in aStr1.
+ * @param  aStr1
+ *         The string to be compared against aStr2 as provided by SQLite.  It
+ *         must be a non-null-terminated char* buffer.
+ * @param  aLen2
+ *         The number of bytes in aStr2.
+ * @param  aStr2
+ *         The string to be compared against aStr1 as provided by SQLite.  It
+ *         must be a non-null-terminated char* buffer.
+ * @param  aSensitivity
+ *         The sorting sensitivity.
+ * @return aStr1 - aStr2.  That is, if aStr1 < aStr2, returns a negative number.
+ *         If aStr1 > aStr2, returns a positive number.  If aStr1 == aStr2,
+ *         returns 0.
+ */
+int localeCollationHelper8(void* aService, int aLen1, const void* aStr1,
+                           int aLen2, const void* aStr2,
+                           Collator::Sensitivity aSensitivity) {
+  NS_ConvertUTF8toUTF16 str1(static_cast<const char*>(aStr1), aLen1);
+  NS_ConvertUTF8toUTF16 str2(static_cast<const char*>(aStr2), aLen2);
+  Service* serv = static_cast<Service*>(aService);
+  return serv->localeCompareStrings(str1, str2, aSensitivity);
+}
+
+/**
+ * Helper function for the UTF-16 locale collations.
+ *
+ * @param  aService
+ *         The Service that owns the collator used by this collation.
+ * @param  aLen1
+ *         The number of bytes (not characters) in aStr1.
+ * @param  aStr1
+ *         The string to be compared against aStr2 as provided by SQLite.  It
+ *         must be a non-null-terminated char16_t* buffer.
+ * @param  aLen2
+ *         The number of bytes (not characters) in aStr2.
+ * @param  aStr2
+ *         The string to be compared against aStr1 as provided by SQLite.  It
+ *         must be a non-null-terminated char16_t* buffer.
+ * @param  aSensitivity
+ *         The sorting sensitivity.
+ * @return aStr1 - aStr2.  That is, if aStr1 < aStr2, returns a negative number.
+ *         If aStr1 > aStr2, returns a positive number.  If aStr1 == aStr2,
+ *         returns 0.
+ */
+int localeCollationHelper16(void* aService, int aLen1, const void* aStr1,
+                            int aLen2, const void* aStr2,
+                            Collator::Sensitivity aSensitivity) {
+  const char16_t* buf1 = static_cast<const char16_t*>(aStr1);
+  const char16_t* buf2 = static_cast<const char16_t*>(aStr2);
+
+  // The second argument to the nsDependentSubstring constructor is exclusive:
+  // It points to the char16_t immediately following the last one in the target
+  // substring.  Since aLen1 and aLen2 are in bytes, divide by sizeof(char16_t)
+  // so that the pointer arithmetic is correct.
+  nsDependentSubstring str1(buf1, buf1 + (aLen1 / sizeof(char16_t)));
+  nsDependentSubstring str2(buf2, buf2 + (aLen2 / sizeof(char16_t)));
+  Service* serv = static_cast<Service*>(aService);
+  return serv->localeCompareStrings(str1, str2, aSensitivity);
+}
+
+// This struct is used only by registerCollations below, but ISO C++98 forbids
+// instantiating a template dependent on a locally-defined type.  Boo-urns!
+struct Collations {
+  const char* zName;
+  int enc;
+  int (*xCompare)(void*, int, const void*, int, const void*);
+};
+
+}  // namespace
+
+////////////////////////////////////////////////////////////////////////////////
+//// Exposed Functions
+
+int registerCollations(sqlite3* aDB, Service* aService) {
+  Collations collations[] = {
+      {"locale", SQLITE_UTF8, localeCollation8},
+      {"locale_case_sensitive", SQLITE_UTF8, localeCollationCaseSensitive8},
+      {"locale_accent_sensitive", SQLITE_UTF8, localeCollationAccentSensitive8},
+      {"locale_case_accent_sensitive", SQLITE_UTF8,
+       localeCollationCaseAccentSensitive8},
+      {"locale", SQLITE_UTF16, localeCollation16},
+      {"locale_case_sensitive", SQLITE_UTF16, localeCollationCaseSensitive16},
+      {"locale_accent_sensitive", SQLITE_UTF16,
+       localeCollationAccentSensitive16},
+      {"locale_case_accent_sensitive", SQLITE_UTF16,
+       localeCollationCaseAccentSensitive16},
+  };
+
+  int rv = SQLITE_OK;
+  for (size_t i = 0; SQLITE_OK == rv && i < ArrayLength(collations); ++i) {
+    struct Collations* p = &collations[i];
+    rv = ::sqlite3_create_collation(aDB, p->zName, p->enc, aService,
+                                    p->xCompare);
+  }
+
+  return rv;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//// SQL Collations
+
+int localeCollation8(void* aService, int aLen1, const void* aStr1, int aLen2,
+                     const void* aStr2) {
+  return localeCollationHelper8(aService, aLen1, aStr1, aLen2, aStr2,
+                                Collator::Sensitivity::Base);
+}
+
+int localeCollationCaseSensitive8(void* aService, int aLen1, const void* aStr1,
+                                  int aLen2, const void* aStr2) {
+  return localeCollationHelper8(aService, aLen1, aStr1, aLen2, aStr2,
+                                Collator::Sensitivity::Case);
+}
+
+int localeCollationAccentSensitive8(void* aService, int aLen1,
+                                    const void* aStr1, int aLen2,
+                                    const void* aStr2) {
+  return localeCollationHelper8(aService, aLen1, aStr1, aLen2, aStr2,
+                                Collator::Sensitivity::Accent);
+}
+
+int localeCollationCaseAccentSensitive8(void* aService, int aLen1,
+                                        const void* aStr1, int aLen2,
+                                        const void* aStr2) {
+  return localeCollationHelper8(aService, aLen1, aStr1, aLen2, aStr2,
+                                Collator::Sensitivity::Variant);
+}
+
+int localeCollation16(void* aService, int aLen1, const void* aStr1, int aLen2,
+                      const void* aStr2) {
+  return localeCollationHelper16(aService, aLen1, aStr1, aLen2, aStr2,
+                                 Collator::Sensitivity::Base);
+}
+
+int localeCollationCaseSensitive16(void* aService, int aLen1, const void* aStr1,
+                                   int aLen2, const void* aStr2) {
+  return localeCollationHelper16(aService, aLen1, aStr1, aLen2, aStr2,
+                                 Collator::Sensitivity::Case);
+}
+
+int localeCollationAccentSensitive16(void* aService, int aLen1,
+                                     const void* aStr1, int aLen2,
+                                     const void* aStr2) {
+  return localeCollationHelper16(aService, aLen1, aStr1, aLen2, aStr2,
+                                 Collator::Sensitivity::Accent);
+}
+
+int localeCollationCaseAccentSensitive16(void* aService, int aLen1,
+                                         const void* aStr1, int aLen2,
+                                         const void* aStr2) {
+  return localeCollationHelper16(aService, aLen1, aStr1, aLen2, aStr2,
+                                 Collator::Sensitivity::Variant);
+}
+
+}  // namespace storage
+}  // namespace mozilla