mirror of
https://github.com/LadybirdBrowser/ladybird.git
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5e1499d104
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).
This commit is auto-generated:
$ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
Meta Ports Ladybird Tests Kernel)
$ perl -pie 's/\bDeprecatedString\b/ByteString/g;
s/deprecated_string/byte_string/g' $xs
$ clang-format --style=file -i \
$(git diff --name-only | grep \.cpp\|\.h)
$ gn format $(git ls-files '*.gn' '*.gni')
79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
/*
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* Copyright (c) 2021, Thomas Voss <mail@thomasvoss.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibCore/ArgsParser.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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TRY(Core::System::pledge("stdio rpath"sv));
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Vector<StringView> paths;
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Core::ArgsParser args_parser;
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args_parser.set_general_help("Concatente files to stdout with each line in reverse.");
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args_parser.add_positional_argument(paths, "File path", "path", Core::ArgsParser::Required::No);
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args_parser.parse(arguments);
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Vector<FILE*> streams;
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auto num_paths = paths.size();
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streams.ensure_capacity(num_paths ? num_paths : 1);
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if (!paths.is_empty()) {
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for (auto const& path : paths) {
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if (path == "-") {
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streams.append(stdin);
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} else {
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FILE* stream = fopen(ByteString(path).characters(), "r");
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if (!stream) {
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warnln("Failed to open {}: {}", path, strerror(errno));
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continue;
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}
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streams.append(stream);
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}
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}
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} else {
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streams.append(stdin);
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}
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char* buffer = nullptr;
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ScopeGuard guard = [&] {
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free(buffer);
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for (auto* stream : streams) {
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// If the user passes '-' as an argument multiple times, then we will end up trying to
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// close stdin multiple times. This will cause `fclose()` to fail but with no error, so
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// we need to manually check errno.
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if (fclose(stream) && errno != 0) {
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perror("fclose");
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}
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}
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};
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TRY(Core::System::pledge("stdio"sv));
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for (auto* stream : streams) {
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for (;;) {
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size_t n = 0;
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errno = 0;
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ssize_t buflen = getline(&buffer, &n, stream);
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if (buflen == -1) {
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if (errno != 0) {
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perror("getline");
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return 1;
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}
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break;
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}
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outln("{}", ByteString { buffer, Chomp }.reverse());
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}
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}
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return 0;
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}
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