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54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef TOOLS_GN_STRING_UTILS_H_
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#define TOOLS_GN_STRING_UTILS_H_
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#include <vector>
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#include "base/strings/string_piece.h"
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class Err;
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class Scope;
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class Token;
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class Value;
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inline std::string operator+(const std::string& a, const base::StringPiece& b) {
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std::string ret;
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ret.reserve(a.size() + b.size());
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ret.assign(a);
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ret.append(b.data(), b.size());
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return ret;
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}
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inline std::string operator+(const base::StringPiece& a, const std::string& b) {
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std::string ret;
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ret.reserve(a.size() + b.size());
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ret.assign(a.data(), a.size());
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ret.append(b);
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return ret;
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}
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// Unescapes and expands variables in the given literal, writing the result
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// to the given value. On error, sets |err| and returns false.
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bool ExpandStringLiteral(Scope* scope,
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const Token& literal,
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Value* result,
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Err* err);
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// Returns the minimum number of inserts, deleted, and replacements of
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// characters needed to transform s1 to s2, or max_edit_distance + 1 if
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// transforming s1 into s2 isn't possible in at most max_edit_distance steps.
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size_t EditDistance(const base::StringPiece& s1,
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const base::StringPiece& s2,
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size_t max_edit_distance);
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// Given a string |text| and a vector of correctly-spelled strings |words|,
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// returns the first string in |words| closest to |text|, or an empty
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// StringPiece if none of the strings in |words| is close.
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base::StringPiece SpellcheckString(const base::StringPiece& text,
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const std::vector<base::StringPiece>& words);
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#endif // TOOLS_GN_STRING_UTILS_H_
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