Revert 84000 - Autofill phone number enhancements and integration of Phone Number Util Library: p...

third_party/libphonenumber/cpp/src/utf/unilib.cc

-/**
- * Copyright 2010 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// Author: Shawn Ligocki
-
-#include "utf/unilib.h"
-
-#include "base/basictypes.h"
-#include "utf/utf.h"
-
-namespace UniLib {
-
-namespace {
-
-// MOE: start_strip
-// MOE: end_strip
-// Codepoints not allowed for interchange are:
-//   C0 (ASCII) controls: U+0000 to U+001F excluding Space (SP, U+0020),
-//       Horizontal Tab (HT, U+0009), Line-Feed (LF, U+000A),
-//       Form Feed (FF, U+000C) and Carriage-Return (CR, U+000D)
-//   C1 controls: U+007F to U+009F
-//   Surrogates: U+D800 to U+DFFF
-//   Non-characters: U+FDD0 to U+FDEF and U+xxFFFE to U+xxFFFF for all xx
-inline bool IsInterchangeValidCodepoint(char32 c) {
-  return !((c >= 0x00 && c <= 0x08) || c == 0x0B || (c >= 0x0E && c <= 0x1F) ||
-           (c >= 0x7F && c <= 0x9F) ||
-           (c >= 0xD800 && c <= 0xDFFF) ||
-           (c >= 0xFDD0 && c <= 0xFDEF) || (c&0xFFFE) == 0xFFFE);
-}
-
-}  // namespace
-
-int SpanInterchangeValid(const char* begin, int byte_length) {
-  char32 rune;
-  const char* p = begin;
-  const char* end = begin + byte_length;
-  while (p < end) {
-    int bytes_consumed = charntorune(&rune, p, end - p);
-    // We want to accept Runeerror == U+FFFD as a valid char, but it is used
-    // by chartorune to indicate error. Luckily, the real codepoint is size 3
-    // while errors return bytes_consumed == 1.
-    if ((rune == Runeerror && bytes_consumed == 1) ||
-        !IsInterchangeValidCodepoint(rune)) {
-      break;  // Found
-    }
-    p += bytes_consumed;
-  }
-  return p - begin;
-}
-
-}  // namespace UniLib