15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Protocol Buffers - Google's data interchange format 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright 2008 Google Inc. All rights reserved. 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// http://code.google.com/p/protobuf/ 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Redistribution and use in source and binary forms, with or without 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// modification, are permitted provided that the following conditions are 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// met: 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Redistributions of source code must retain the above copyright 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// notice, this list of conditions and the following disclaimer. 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Redistributions in binary form must reproduce the above 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// copyright notice, this list of conditions and the following disclaimer 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// in the documentation and/or other materials provided with the 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// distribution. 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Neither the name of Google Inc. nor the names of its 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// contributors may be used to endorse or promote products derived from 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// this software without specific prior written permission. 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Author: kenton@google.com (Kenton Varda) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <google/protobuf/stubs/substitute.h> 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <google/protobuf/stubs/strutil.h> 35ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch#include <google/protobuf/stubs/stl_util.h> 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace google { 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace protobuf { 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace strings { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using internal::SubstituteArg; 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Returns the number of args in arg_array which were passed explicitly 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// to Substitute(). 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int CountSubstituteArgs(const SubstituteArg* const* args_array) { 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int count = 0; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) while (args_array[count] != NULL && args_array[count]->size() != -1) { 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++count; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return count; 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)string Substitute( 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* format, 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg& arg0, const SubstituteArg& arg1, 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg& arg2, const SubstituteArg& arg3, 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg& arg4, const SubstituteArg& arg5, 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg& arg6, const SubstituteArg& arg7, 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg& arg8, const SubstituteArg& arg9) { 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) string result; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SubstituteAndAppend(&result, format, arg0, arg1, arg2, arg3, arg4, 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) arg5, arg6, arg7, arg8, arg9); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return result; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void SubstituteAndAppend( 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) string* output, const char* format, 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg& arg0, const SubstituteArg& arg1, 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg& arg2, const SubstituteArg& arg3, 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg& arg4, const SubstituteArg& arg5, 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg& arg6, const SubstituteArg& arg7, 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg& arg8, const SubstituteArg& arg9) { 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg* const args_array[] = { 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &arg0, &arg1, &arg2, &arg3, &arg4, &arg5, &arg6, &arg7, &arg8, &arg9, NULL 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Determine total size needed. 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int size = 0; 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (int i = 0; format[i] != '\0'; i++) { 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (format[i] == '$') { 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ascii_isdigit(format[i+1])) { 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int index = format[i+1] - '0'; 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (args_array[index]->size() == -1) { 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GOOGLE_LOG(DFATAL) 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << "strings::Substitute format string invalid: asked for \"$" 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << index << "\", but only " << CountSubstituteArgs(args_array) 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << " args were given. Full format string was: \"" 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << CEscape(format) << "\"."; 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size += args_array[index]->size(); 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++i; // Skip next char. 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else if (format[i+1] == '$') { 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++size; 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++i; // Skip next char. 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GOOGLE_LOG(DFATAL) 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << "Invalid strings::Substitute() format string: \"" 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << CEscape(format) << "\"."; 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++size; 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (size == 0) return; 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Build the string. 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int original_size = output->size(); 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) STLStringResizeUninitialized(output, original_size + size); 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char* target = string_as_array(output) + original_size; 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (int i = 0; format[i] != '\0'; i++) { 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (format[i] == '$') { 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ascii_isdigit(format[i+1])) { 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SubstituteArg* src = args_array[format[i+1] - '0']; 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memcpy(target, src->data(), src->size()); 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) target += src->size(); 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++i; // Skip next char. 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else if (format[i+1] == '$') { 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *target++ = '$'; 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++i; // Skip next char. 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *target++ = format[i]; 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GOOGLE_DCHECK_EQ(target - output->data(), output->size()); 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace strings 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace protobuf 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace google 135