| // Copyright (c) 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. |
| |
| #ifndef TOOLS_GN_STRING_UTILS_H_ |
| #define TOOLS_GN_STRING_UTILS_H_ |
| |
| #include <string> |
| #include <string_view> |
| #include <vector> |
| |
| class Err; |
| class Scope; |
| class Token; |
| class Value; |
| |
| inline std::string operator+(const std::string& a, std::string_view b) { |
| std::string ret; |
| ret.reserve(a.size() + b.size()); |
| ret.assign(a); |
| ret.append(b.data(), b.size()); |
| return ret; |
| } |
| |
| inline std::string operator+(std::string_view a, const std::string& b) { |
| std::string ret; |
| ret.reserve(a.size() + b.size()); |
| ret.assign(a.data(), a.size()); |
| ret.append(b); |
| return ret; |
| } |
| |
| // Unescapes and expands variables in the given literal, writing the result |
| // to the given value. On error, sets |err| and returns false. |
| bool ExpandStringLiteral(Scope* scope, |
| const Token& literal, |
| Value* result, |
| Err* err); |
| |
| // Returns the minimum number of inserts, deleted, and replacements of |
| // characters needed to transform s1 to s2, or max_edit_distance + 1 if |
| // transforming s1 into s2 isn't possible in at most max_edit_distance steps. |
| size_t EditDistance(std::string_view s1, |
| std::string_view s2, |
| size_t max_edit_distance); |
| |
| // Given a string |text| and a vector of correctly-spelled strings |words|, |
| // returns the first string in |words| closest to |text|, or an empty |
| // std::string_view if none of the strings in |words| is close. |
| std::string_view SpellcheckString(std::string_view text, |
| const std::vector<std::string_view>& words); |
| |
| // Reads stdin until end-of-data and returns what it read. |
| std::string ReadStdin(); |
| |
| #endif // TOOLS_GN_STRING_UTILS_H_ |