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// Copyright 2016 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 COMPONENTS_UI_DEVTOOLS_STRING_UTIL_H_
#define COMPONENTS_UI_DEVTOOLS_STRING_UTIL_H_
#include <memory>
#include "base/json/json_reader.h"
#include "base/strings/string_number_conversions.h"
namespace ui {
namespace devtools {
using String = std::string;
namespace protocol {
class Value;
class CustomStringBuilder {
String s_;
public:
CustomStringBuilder() {}
CustomStringBuilder(String& s) : s_(s) {}
void reserveCapacity(std::size_t size) { s_.reserve(size); }
void append(const String& s) { s_ += s; }
void append(char c) { s_ += c; }
void append(const char* data, unsigned int length) {
s_.append(data, length);
}
String toString() { return s_; }
};
using StringBuilder = CustomStringBuilder;
class StringUtil {
public:
static String substring(const String& s, unsigned pos, unsigned len) {
return s.substr(pos, len);
}
static String fromInteger(int number) { return base::IntToString(number); }
static String fromDouble(double number) {
return base::DoubleToString(number);
}
static double toDouble(const char* s, size_t len, bool* ok) {
double v = 0.0;
*ok = base::StringToDouble(std::string(s, len), &v);
return *ok ? v : 0.0;
}
static void builderAppend(StringBuilder& builder, const String& s) {
builder.append(s);
}
static void builderAppend(StringBuilder& builder, char c) {
builder.append(c);
}
static void builderAppend(StringBuilder& builder, const char* s, size_t len) {
builder.append(s, len);
}
static void builderReserve(StringBuilder& builder, unsigned capacity) {
builder.reserveCapacity(capacity);
}
static String builderToString(StringBuilder& builder) {
return builder.toString();
}
static size_t find(const String& s, const char* needle) {
return s.find(needle);
}
static size_t find(const String& s, const String& needle) {
return s.find(needle);
}
static const size_t kNotFound = static_cast<size_t>(-1);
static std::unique_ptr<Value> parseJSON(const String& string);
};
} // namespace protocol
} // namespace devtools
} // namespace ui
#endif // COMPONENTS_UI_DEVTOOLS_STRING_UTIL_H_
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