| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| // The original source code is from: |
| // http://src.chromium.org/viewvc/chrome/trunk/src/base/strings/string_util.cc?revision=268754 |
| // |
| // Modified to contain only the DoReplaceStringPlaceholders() that works with |
| // std::string. Replaced DCHECK() with assert() and removed offsets. |
| |
| #include "string_util.h" |
| |
| #include <cassert> |
| #include <cstddef> |
| #include <stdint.h> |
| #include <string> |
| #include <vector> |
| |
| namespace i18n { |
| namespace addressinput { |
| |
| std::string DoReplaceStringPlaceholders(const std::string& format_string, |
| const std::vector<std::string>& subst) { |
| size_t substitutions = subst.size(); |
| |
| size_t sub_length = 0; |
| for (std::vector<std::string>::const_iterator iter = subst.begin(); |
| iter != subst.end(); ++iter) { |
| sub_length += iter->length(); |
| } |
| |
| std::string formatted; |
| formatted.reserve(format_string.length() + sub_length); |
| |
| for (std::string::const_iterator i = format_string.begin(); |
| i != format_string.end(); ++i) { |
| if ('$' == *i) { |
| if (i + 1 != format_string.end()) { |
| ++i; |
| assert('$' == *i || '1' <= *i); |
| if ('$' == *i) { |
| while (i != format_string.end() && '$' == *i) { |
| formatted.push_back('$'); |
| ++i; |
| } |
| --i; |
| } else { |
| uintptr_t index = 0; |
| while (i != format_string.end() && '0' <= *i && *i <= '9') { |
| index *= 10; |
| index += *i - '0'; |
| ++i; |
| } |
| --i; |
| index -= 1; |
| if (index < substitutions) |
| formatted.append(subst.at(index)); |
| } |
| } |
| } else { |
| formatted.push_back(*i); |
| } |
| } |
| return formatted; |
| } |
| |
| } // namespace addressinput |
| } // namespace i18n |