1 files changed, 147 insertions, 0 deletions
diff --git a/ldap/xpcom/src/nsLDAPUtils.h b/ldap/xpcom/src/nsLDAPUtils.h
new file mode 100644
index 0000000000..87f5dacc1f
--- /dev/null
+++ b/ldap/xpcom/src/nsLDAPUtils.h
@@ -0,0 +1,147 @@
+/* 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/. */
+
+/* This module contains helper functions and macros for converting directory
+   module to frozen linkage.
+ */
+#include "nsServiceManagerUtils.h"
+#include "nsStringGlue.h"
+#include <ctype.h>
+
+#ifdef MOZILLA_INTERNAL_API
+/* Internal API helper macros */
+
+#define LdapCompressWhitespace(str) \
+        (str).CompressWhitespace()
+
+#else // MOZILLA_INTERNAL_API
+/* Frozen linkage helper functions */
+
+/* This macro has been copied from msgcore.h */
+#define IS_SPACE(VAL) \
+  (((((PRIntn)(VAL)) & 0x7f) == ((PRIntn)(VAL))) && isspace((PRIntn)(VAL)))
+
+/* This function has been copied from nsMsgUtils.cpp */
+inline void LdapCompressWhitespace(nsCString& aString)
+{
+  // This code is frozen linkage specific
+  aString.Trim(" \f\n\r\t\v");
+
+  char *start, *end;
+  aString.BeginWriting(&start, &end);
+
+  for (char *cur = start; cur < end; ++cur) {
+    if (!IS_SPACE(*cur))
+      continue;
+
+    *cur = ' ';
+
+    if (!IS_SPACE(*(cur + 1)))
+      continue;
+
+    // Loop through the white space
+    char *wend = cur + 2;
+    while (IS_SPACE(*wend))
+      ++wend;
+
+    uint32_t wlen = wend - cur - 1;
+
+    // fix "end"
+    end -= wlen;
+
+    // move everything forwards a bit
+    for (char *m = cur + 1; m < end; ++m) {
+      *m = *(m + wlen);
+    }
+  }
+
+  // Set the new length.
+  aString.SetLength(end - start);
+}
+
+/*
+ * Function copied from nsReadableUtils.
+ * Migrating to frozen linkage is the only change done
+ */
+inline
+bool IsUTF8(const nsACString& aString)
+{
+  const char *done_reading = aString.EndReading();
+
+  int32_t state = 0;
+  bool overlong = false;
+  bool surrogate = false;
+  bool nonchar = false;
+  uint16_t olupper = 0; // overlong byte upper bound.
+  uint16_t slower = 0;  // surrogate byte lower bound.
+
+  const char *ptr = aString.BeginReading();
+
+  while (ptr < done_reading) {
+    uint8_t c;
+
+    if (0 == state) {
+
+      c = *ptr++;
+
+      if ((c & 0x80) == 0x00)
+        continue;
+
+      if ( c <= 0xC1 ) // [80-BF] where not expected, [C0-C1] for overlong.
+        return false;
+      else if ((c & 0xE0) == 0xC0)
+        state = 1;
+      else if ((c & 0xF0) == 0xE0) {
+        state = 2;
+        if ( c == 0xE0 ) { // to exclude E0[80-9F][80-BF]
+          overlong = true;
+          olupper = 0x9F;
+        } else if ( c == 0xED ) { // ED[A0-BF][80-BF] : surrogate codepoint
+          surrogate = true;
+          slower = 0xA0;
+        } else if ( c == 0xEF ) // EF BF [BE-BF] : non-character
+          nonchar = true;
+      } else if ( c <= 0xF4 ) { // XXX replace /w UTF8traits::is4byte when it's updated to exclude [F5-F7].(bug 199090)
+        state = 3;
+        nonchar = true;
+        if ( c == 0xF0 ) { // to exclude F0[80-8F][80-BF]{2}
+          overlong = true;
+          olupper = 0x8F;
+        }
+        else if ( c == 0xF4 ) { // to exclude F4[90-BF][80-BF]
+          // actually not surrogates but codepoints beyond 0x10FFFF
+          surrogate = true;
+          slower = 0x90;
+        }
+      } else
+        return false; // Not UTF-8 string
+    }
+
+    while (ptr < done_reading && state) {
+      c = *ptr++;
+      --state;
+
+      // non-character : EF BF [BE-BF] or F[0-7] [89AB]F BF [BE-BF]
+      if ( nonchar &&  ( !state &&  c < 0xBE ||
+           state == 1 && c != 0xBF  ||
+           state == 2 && 0x0F != (0x0F & c) ))
+        nonchar = false;
+
+      if ((c & 0xC0) != 0x80 || overlong && c <= olupper ||
+           surrogate && slower <= c || nonchar && !state )
+        return false; // Not UTF-8 string
+      overlong = surrogate = false;
+    }
+  }
+  return !state; // state != 0 at the end indicates an invalid UTF-8 seq.
+}
+
+#define kNotFound -1
+
+#define nsCaseInsensitiveCStringComparator() \
+        CaseInsensitiveCompare
+#define nsCaseInsensitiveStringComparator() \
+        CaseInsensitiveCompare
+
+#endif // MOZILLA_INTERNAL_API