First round of dead file removal

experimental/visual_studio_plugin/third_party/breakpad/common/string_conversion.cc

-// Copyright (c) 2006, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include "common/convert_UTF.h"
-#include "processor/scoped_ptr.h"
-#include "common/string_conversion.h"
-#include <string.h>
-
-namespace google_breakpad {
-
-using std::string;
-using std::vector;
-
-void UTF8ToUTF16(const char *in, vector<u_int16_t> *out) {
-  size_t source_length = strlen(in);
-  const UTF8 *source_ptr = reinterpret_cast<const UTF8 *>(in);
-  const UTF8 *source_end_ptr = source_ptr + source_length;
-  // Erase the contents and zero fill to the expected size
-  out->empty();
-  out->insert(out->begin(), source_length, 0);
-  u_int16_t *target_ptr = &(*out)[0];
-  u_int16_t *target_end_ptr = target_ptr + out->capacity() * sizeof(u_int16_t);
-  ConversionResult result = ConvertUTF8toUTF16(&source_ptr, source_end_ptr,
-                                               &target_ptr, target_end_ptr,
-                                               strictConversion);
-
-  // Resize to be the size of the # of converted characters + NULL
-  out->resize(result == conversionOK ? target_ptr - &(*out)[0] + 1: 0);
-}
-
-int UTF8ToUTF16Char(const char *in, int in_length, u_int16_t out[2]) {
-  const UTF8 *source_ptr = reinterpret_cast<const UTF8 *>(in);
-  const UTF8 *source_end_ptr = source_ptr + sizeof(char);
-  u_int16_t *target_ptr = out;
-  u_int16_t *target_end_ptr = target_ptr + 2 * sizeof(u_int16_t);
-  out[0] = out[1] = 0;
-
-  // Process one character at a time
-  while (1) {
-    ConversionResult result = ConvertUTF8toUTF16(&source_ptr, source_end_ptr,
-                                                 &target_ptr, target_end_ptr,
-                                                 strictConversion);
-
-    if (result == conversionOK)
-      return source_ptr - reinterpret_cast<const UTF8 *>(in);
-
-    // Add another character to the input stream and try again
-    source_ptr = reinterpret_cast<const UTF8 *>(in);
-    ++source_end_ptr;
-
-    if (source_end_ptr > reinterpret_cast<const UTF8 *>(in) + in_length)
-      break;
-  }
-
-  return 0;
-}
-
-void UTF32ToUTF16(const wchar_t *in, vector<u_int16_t> *out) {
-  size_t source_length = wcslen(in);
-  const UTF32 *source_ptr = reinterpret_cast<const UTF32 *>(in);
-  const UTF32 *source_end_ptr = source_ptr + source_length;
-  // Erase the contents and zero fill to the expected size
-  out->empty();
-  out->insert(out->begin(), source_length, 0);
-  u_int16_t *target_ptr = &(*out)[0];
-  u_int16_t *target_end_ptr = target_ptr + out->capacity() * sizeof(u_int16_t);
-  ConversionResult result = ConvertUTF32toUTF16(&source_ptr, source_end_ptr,
-                                                &target_ptr, target_end_ptr,
-                                                strictConversion);
-
-  // Resize to be the size of the # of converted characters + NULL
-  out->resize(result == conversionOK ? target_ptr - &(*out)[0] + 1: 0);
-}
-
-void UTF32ToUTF16Char(wchar_t in, u_int16_t out[2]) {
-  const UTF32 *source_ptr = reinterpret_cast<const UTF32 *>(&in);
-  const UTF32 *source_end_ptr = source_ptr + 1;
-  u_int16_t *target_ptr = out;
-  u_int16_t *target_end_ptr = target_ptr + 2 * sizeof(u_int16_t);
-  out[0] = out[1] = 0;
-  ConversionResult result = ConvertUTF32toUTF16(&source_ptr, source_end_ptr,
-                                                &target_ptr, target_end_ptr,
-                                                strictConversion);
-
-  if (result != conversionOK) {
-    out[0] = out[1] = 0;
-  }
-}
-
-static inline u_int16_t Swap(u_int16_t value) {
-  return (value >> 8) | (value << 8);
-}
-
-string UTF16ToUTF8(const vector<u_int16_t> &in, bool swap) {
-  const UTF16 *source_ptr = &in[0];
-  scoped_ptr<u_int16_t> source_buffer;
-
-  // If we're to swap, we need to make a local copy and swap each byte pair
-  if (swap) {
-    int idx = 0;
-    source_buffer.reset(new u_int16_t[in.size()]);
-    UTF16 *source_buffer_ptr = source_buffer.get();
-    for (vector<u_int16_t>::const_iterator it = in.begin();
-         it != in.end(); ++it, ++idx)
-      source_buffer_ptr[idx] = Swap(*it);
-
-    source_ptr = source_buffer.get();
-  }
-
-  // The maximum expansion would be 4x the size of the input string.
-  const UTF16 *source_end_ptr = source_ptr + in.size();
-  int target_capacity = in.size() * 4;
-  scoped_array<UTF8> target_buffer(new UTF8[target_capacity]);
-  UTF8 *target_ptr = target_buffer.get();
-  UTF8 *target_end_ptr = target_ptr + target_capacity;
-  ConversionResult result = ConvertUTF16toUTF8(&source_ptr, source_end_ptr, 
-                                               &target_ptr, target_end_ptr,
-                                               strictConversion);
-
-  if (result == conversionOK) {
-    const char *targetPtr = reinterpret_cast<const char *>(target_buffer.get());
-    string result(targetPtr);
-    return result;
-  }
-
-  return "";
-}
-
-}  // namespace google_breakpad