b5c48b97f6
Ongoing fixes and improvements, transient suppressor is gone. Also, dropping isac because it doesn't seem to be useful, and is just build system deadweight now. Upstream references: Version: 131.0.6778.200 WebRTC: 79aff54b0fa9238ce3518dd9eaf9610cd6f22e82 Chromium: 2a19506ad24af755f2a215a4c61f775393e0db42
121 lines
3.8 KiB
C++
121 lines
3.8 KiB
C++
/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef RTC_BASE_STRING_ENCODE_H_
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#define RTC_BASE_STRING_ENCODE_H_
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#include <stddef.h>
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#include <optional>
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#include <string>
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#include <type_traits>
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#include <vector>
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#include "absl/strings/str_cat.h"
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#include "absl/strings/string_view.h"
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#include "api/array_view.h"
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#include "rtc_base/checks.h"
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#include "rtc_base/string_to_number.h"
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namespace rtc {
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//////////////////////////////////////////////////////////////////////
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// String Encoding Utilities
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//////////////////////////////////////////////////////////////////////
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std::string hex_encode(absl::string_view str);
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std::string hex_encode_with_delimiter(absl::string_view source, char delimiter);
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// hex_decode converts ascii hex to binary.
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size_t hex_decode(ArrayView<char> buffer, absl::string_view source);
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// hex_decode, assuming that there is a delimiter between every byte
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// pair.
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// `delimiter` == 0 means no delimiter
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// If the buffer is too short or the data is invalid, we return 0.
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size_t hex_decode_with_delimiter(ArrayView<char> buffer,
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absl::string_view source,
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char delimiter);
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// Splits the source string into multiple fields separated by delimiter,
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// with duplicates of delimiter creating empty fields. Empty input produces a
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// single, empty, field.
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std::vector<absl::string_view> split(absl::string_view source, char delimiter);
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// Splits the source string into multiple fields separated by delimiter,
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// with duplicates of delimiter ignored. Trailing delimiter ignored.
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size_t tokenize(absl::string_view source,
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char delimiter,
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std::vector<std::string>* fields);
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// Extract the first token from source as separated by delimiter, with
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// duplicates of delimiter ignored. Return false if the delimiter could not be
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// found, otherwise return true.
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bool tokenize_first(absl::string_view source,
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char delimiter,
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std::string* token,
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std::string* rest);
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template <typename T,
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typename std::enable_if<
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!std::is_pointer<T>::value ||
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std::is_convertible<T, const char*>::value>::type* = nullptr>
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std::string ToString(T value) {
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return {absl::StrCat(value)};
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}
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// Versions that behave differently from StrCat
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template <>
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std::string ToString(bool b);
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// Versions not supported by StrCat:
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template <>
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std::string ToString(long double t);
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template <typename T,
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typename std::enable_if<
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std::is_pointer<T>::value &&
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!std::is_convertible<T, const char*>::value>::type* = nullptr>
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std::string ToString(T p) {
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char buf[32];
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const int len = std::snprintf(&buf[0], std::size(buf), "%p", p);
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RTC_DCHECK_LE(len, std::size(buf));
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return std::string(&buf[0], len);
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}
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template <typename T,
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typename std::enable_if<std::is_arithmetic<T>::value &&
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!std::is_same<T, bool>::value,
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int>::type = 0>
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static bool FromString(absl::string_view s, T* t) {
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RTC_DCHECK(t);
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std::optional<T> result = StringToNumber<T>(s);
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if (result)
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*t = *result;
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return result.has_value();
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}
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bool FromString(absl::string_view s, bool* b);
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template <typename T>
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static inline T FromString(absl::string_view str) {
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T val;
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FromString(str, &val);
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return val;
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}
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//////////////////////////////////////////////////////////////////////
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} // namespace rtc
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#endif // RTC_BASE_STRING_ENCODE_H__
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