Implement Cast Streaming mirroring, DLNA casting, daemon+GUI, and breadd integration
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Builds out the full v1 scope: a vendored+patched openscreen subset for low-latency Cast Streaming (Mirroring receiver 0F5096E8) alongside the existing Cast V2/HLS and new DLNA/AVTransport casting paths, breadcastd's Idle/Casting state machine with a private IPC socket, the breadcast GTK4 popup as a thin IPC client, and bread.cast.*/bread.command.cast.* breadd integration (device discovery, start/stop, mirroring lifecycle events). Also adds bakery/systemd/Forgejo CI packaging. Validated end-to-end against a real Chromecast/Google TV: negotiated Cast Streaming session, live pipeline playback, and daemon+GUI click-to-cast/ stop through the actual popup.
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Breadway
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160
breadcast-caststream-sys/vendor/openscreen/util/string_util.cc
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breadcast-caststream-sys/vendor/openscreen/util/string_util.cc
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// Copyright 2023 The Chromium Authors
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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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#include "util/string_util.h"
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#include <functional>
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#include <ranges>
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namespace openscreen::string_util {
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namespace internal {
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// clang-format off
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// Array of bitfields holding character information. Note that bitfields for all
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// characters above ASCII 127 are zero-initialized.
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// Position Meaning
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// -------- -------
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// 1 alphabetic
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// 2 alphanumeric
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// 3 whitespace
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// 4 punctuation
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// 5 tab or space
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// 6 control character
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// 7 hex digit
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const unsigned char kPropertyBits[256] = {
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0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x00
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0x40, 0x68, 0x48, 0x48, 0x48, 0x48, 0x40, 0x40,
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0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 0x10
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0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
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0x28, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, // 0x20
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0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
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0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, // 0x30
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0x84, 0x84, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
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0x10, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x05, // 0x40
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0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
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0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, // 0x50
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0x05, 0x05, 0x05, 0x10, 0x10, 0x10, 0x10, 0x10,
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0x10, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x05, // 0x60
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0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
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0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, // 0x70
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0x05, 0x05, 0x05, 0x10, 0x10, 0x10, 0x10, 0x40,
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};
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// Array of characters for the ascii_tolower() function.
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const char kToLower[256] = {
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'\x00', '\x01', '\x02', '\x03', '\x04', '\x05', '\x06', '\x07',
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'\x08', '\x09', '\x0a', '\x0b', '\x0c', '\x0d', '\x0e', '\x0f',
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'\x10', '\x11', '\x12', '\x13', '\x14', '\x15', '\x16', '\x17',
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'\x18', '\x19', '\x1a', '\x1b', '\x1c', '\x1d', '\x1e', '\x1f',
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'\x20', '\x21', '\x22', '\x23', '\x24', '\x25', '\x26', '\x27',
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'\x28', '\x29', '\x2a', '\x2b', '\x2c', '\x2d', '\x2e', '\x2f',
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'\x30', '\x31', '\x32', '\x33', '\x34', '\x35', '\x36', '\x37',
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'\x38', '\x39', '\x3a', '\x3b', '\x3c', '\x3d', '\x3e', '\x3f',
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'\x40', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
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'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
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'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
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'x', 'y', 'z', '\x5b', '\x5c', '\x5d', '\x5e', '\x5f',
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'\x60', '\x61', '\x62', '\x63', '\x64', '\x65', '\x66', '\x67',
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'\x68', '\x69', '\x6a', '\x6b', '\x6c', '\x6d', '\x6e', '\x6f',
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'\x70', '\x71', '\x72', '\x73', '\x74', '\x75', '\x76', '\x77',
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'\x78', '\x79', '\x7a', '\x7b', '\x7c', '\x7d', '\x7e', '\x7f',
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'\x80', '\x81', '\x82', '\x83', '\x84', '\x85', '\x86', '\x87',
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'\x88', '\x89', '\x8a', '\x8b', '\x8c', '\x8d', '\x8e', '\x8f',
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'\x90', '\x91', '\x92', '\x93', '\x94', '\x95', '\x96', '\x97',
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'\x98', '\x99', '\x9a', '\x9b', '\x9c', '\x9d', '\x9e', '\x9f',
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'\xa0', '\xa1', '\xa2', '\xa3', '\xa4', '\xa5', '\xa6', '\xa7',
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'\xa8', '\xa9', '\xaa', '\xab', '\xac', '\xad', '\xae', '\xaf',
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'\xb0', '\xb1', '\xb2', '\xb3', '\xb4', '\xb5', '\xb6', '\xb7',
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'\xb8', '\xb9', '\xba', '\xbb', '\xbc', '\xbd', '\xbe', '\xbf',
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'\xc0', '\xc1', '\xc2', '\xc3', '\xc4', '\xc5', '\xc6', '\xc7',
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'\xc8', '\xc9', '\xca', '\xcb', '\xcc', '\xcd', '\xce', '\xcf',
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'\xd0', '\xd1', '\xd2', '\xd3', '\xd4', '\xd5', '\xd6', '\xd7',
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'\xd8', '\xd9', '\xda', '\xdb', '\xdc', '\xdd', '\xde', '\xdf',
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'\xe0', '\xe1', '\xe2', '\xe3', '\xe4', '\xe5', '\xe6', '\xe7',
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'\xe8', '\xe9', '\xea', '\xeb', '\xec', '\xed', '\xee', '\xef',
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'\xf0', '\xf1', '\xf2', '\xf3', '\xf4', '\xf5', '\xf6', '\xf7',
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'\xf8', '\xf9', '\xfa', '\xfb', '\xfc', '\xfd', '\xfe', '\xff',
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};
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// Array of characters for the ascii_toupper() function.
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const char kToUpper[256] = {
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'\x00', '\x01', '\x02', '\x03', '\x04', '\x05', '\x06', '\x07',
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'\x08', '\x09', '\x0a', '\x0b', '\x0c', '\x0d', '\x0e', '\x0f',
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'\x10', '\x11', '\x12', '\x13', '\x14', '\x15', '\x16', '\x17',
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'\x18', '\x19', '\x1a', '\x1b', '\x1c', '\x1d', '\x1e', '\x1f',
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'\x20', '\x21', '\x22', '\x23', '\x24', '\x25', '\x26', '\x27',
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'\x28', '\x29', '\x2a', '\x2b', '\x2c', '\x2d', '\x2e', '\x2f',
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'\x30', '\x31', '\x32', '\x33', '\x34', '\x35', '\x36', '\x37',
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'\x38', '\x39', '\x3a', '\x3b', '\x3c', '\x3d', '\x3e', '\x3f',
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'\x40', '\x41', '\x42', '\x43', '\x44', '\x45', '\x46', '\x47',
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'\x48', '\x49', '\x4a', '\x4b', '\x4c', '\x4d', '\x4e', '\x4f',
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'\x50', '\x51', '\x52', '\x53', '\x54', '\x55', '\x56', '\x57',
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'\x58', '\x59', '\x5a', '\x5b', '\x5c', '\x5d', '\x5e', '\x5f',
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'\x60', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
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'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
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'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
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'X', 'Y', 'Z', '\x7b', '\x7c', '\x7d', '\x7e', '\x7f',
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'\x80', '\x81', '\x82', '\x83', '\x84', '\x85', '\x86', '\x87',
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'\x88', '\x89', '\x8a', '\x8b', '\x8c', '\x8d', '\x8e', '\x8f',
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'\x90', '\x91', '\x92', '\x93', '\x94', '\x95', '\x96', '\x97',
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'\x98', '\x99', '\x9a', '\x9b', '\x9c', '\x9d', '\x9e', '\x9f',
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'\xa0', '\xa1', '\xa2', '\xa3', '\xa4', '\xa5', '\xa6', '\xa7',
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'\xa8', '\xa9', '\xaa', '\xab', '\xac', '\xad', '\xae', '\xaf',
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'\xb0', '\xb1', '\xb2', '\xb3', '\xb4', '\xb5', '\xb6', '\xb7',
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'\xb8', '\xb9', '\xba', '\xbb', '\xbc', '\xbd', '\xbe', '\xbf',
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'\xc0', '\xc1', '\xc2', '\xc3', '\xc4', '\xc5', '\xc6', '\xc7',
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'\xc8', '\xc9', '\xca', '\xcb', '\xcc', '\xcd', '\xce', '\xcf',
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'\xd0', '\xd1', '\xd2', '\xd3', '\xd4', '\xd5', '\xd6', '\xd7',
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'\xd8', '\xd9', '\xda', '\xdb', '\xdc', '\xdd', '\xde', '\xdf',
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'\xe0', '\xe1', '\xe2', '\xe3', '\xe4', '\xe5', '\xe6', '\xe7',
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'\xe8', '\xe9', '\xea', '\xeb', '\xec', '\xed', '\xee', '\xef',
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'\xf0', '\xf1', '\xf2', '\xf3', '\xf4', '\xf5', '\xf6', '\xf7',
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'\xf8', '\xf9', '\xfa', '\xfb', '\xfc', '\xfd', '\xfe', '\xff',
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};
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// clang-format on
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} // namespace internal
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void AsciiStrToLower(std::string& s) {
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for (auto& c : s)
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c = ascii_tolower(c);
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}
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std::string AsciiStrToLower(std::string_view s) {
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std::string result(s);
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AsciiStrToLower(result);
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return result;
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}
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void AsciiStrToUpper(std::string& s) {
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for (auto& c : s)
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c = ascii_toupper(c);
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}
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std::string AsciiStrToUpper(std::string_view s) {
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std::string result(s);
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AsciiStrToUpper(result);
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return result;
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}
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[[nodiscard]] bool EqualsIgnoreCase(std::string_view a, std::string_view b) {
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// std::ranges::equal checks size() automatically for random-access ranges
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// like std::string_view.
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return std::ranges::equal(
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a, b, std::equal_to<>{}, // 1. The Predicate: Compare for equality
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ascii_tolower, // 2. Projection for piece1
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ascii_tolower // 3. Projection for piece2
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);
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}
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[[nodiscard]] std::vector<std::string_view> Split(std::string_view value,
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char delim) {
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auto tokens = value | std::views::split(delim) |
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std::views::filter([](auto&& r) { return !r.empty(); });
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std::vector<std::string_view> result;
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for (auto&& token : tokens) {
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result.emplace_back(token.begin(), token.end());
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}
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return result;
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}
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} // namespace openscreen::string_util
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