/thirdparty/breakpad/third_party/protobuf/protobuf/src/google/protobuf/stubs/substitute.cc
http://github.com/tomahawk-player/tomahawk · C++ · 134 lines · 88 code · 12 blank · 34 comment · 27 complexity · 76b248fb413763532e82614978c181cd MD5 · raw file
- // Protocol Buffers - Google's data interchange format
- // Copyright 2008 Google Inc. All rights reserved.
- // http://code.google.com/p/protobuf/
- //
- // 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.
- // Author: kenton@google.com (Kenton Varda)
- #include <google/protobuf/stubs/substitute.h>
- #include <google/protobuf/stubs/strutil.h>
- #include <google/protobuf/stubs/stl_util-inl.h>
- namespace google {
- namespace protobuf {
- namespace strings {
- using internal::SubstituteArg;
- // Returns the number of args in arg_array which were passed explicitly
- // to Substitute().
- static int CountSubstituteArgs(const SubstituteArg* const* args_array) {
- int count = 0;
- while (args_array[count] != NULL && args_array[count]->size() != -1) {
- ++count;
- }
- return count;
- }
- string Substitute(
- const char* format,
- const SubstituteArg& arg0, const SubstituteArg& arg1,
- const SubstituteArg& arg2, const SubstituteArg& arg3,
- const SubstituteArg& arg4, const SubstituteArg& arg5,
- const SubstituteArg& arg6, const SubstituteArg& arg7,
- const SubstituteArg& arg8, const SubstituteArg& arg9) {
- string result;
- SubstituteAndAppend(&result, format, arg0, arg1, arg2, arg3, arg4,
- arg5, arg6, arg7, arg8, arg9);
- return result;
- }
- void SubstituteAndAppend(
- string* output, const char* format,
- const SubstituteArg& arg0, const SubstituteArg& arg1,
- const SubstituteArg& arg2, const SubstituteArg& arg3,
- const SubstituteArg& arg4, const SubstituteArg& arg5,
- const SubstituteArg& arg6, const SubstituteArg& arg7,
- const SubstituteArg& arg8, const SubstituteArg& arg9) {
- const SubstituteArg* const args_array[] = {
- &arg0, &arg1, &arg2, &arg3, &arg4, &arg5, &arg6, &arg7, &arg8, &arg9, NULL
- };
- // Determine total size needed.
- int size = 0;
- for (int i = 0; format[i] != '\0'; i++) {
- if (format[i] == '$') {
- if (ascii_isdigit(format[i+1])) {
- int index = format[i+1] - '0';
- if (args_array[index]->size() == -1) {
- GOOGLE_LOG(DFATAL)
- << "strings::Substitute format string invalid: asked for \"$"
- << index << "\", but only " << CountSubstituteArgs(args_array)
- << " args were given. Full format string was: \""
- << CEscape(format) << "\".";
- return;
- }
- size += args_array[index]->size();
- ++i; // Skip next char.
- } else if (format[i+1] == '$') {
- ++size;
- ++i; // Skip next char.
- } else {
- GOOGLE_LOG(DFATAL)
- << "Invalid strings::Substitute() format string: \""
- << CEscape(format) << "\".";
- return;
- }
- } else {
- ++size;
- }
- }
- if (size == 0) return;
- // Build the string.
- int original_size = output->size();
- STLStringResizeUninitialized(output, original_size + size);
- char* target = string_as_array(output) + original_size;
- for (int i = 0; format[i] != '\0'; i++) {
- if (format[i] == '$') {
- if (ascii_isdigit(format[i+1])) {
- const SubstituteArg* src = args_array[format[i+1] - '0'];
- memcpy(target, src->data(), src->size());
- target += src->size();
- ++i; // Skip next char.
- } else if (format[i+1] == '$') {
- *target++ = '$';
- ++i; // Skip next char.
- }
- } else {
- *target++ = format[i];
- }
- }
- GOOGLE_DCHECK_EQ(target - output->data(), output->size());
- }
- } // namespace strings
- } // namespace protobuf
- } // namespace google