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1682f0b760
SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
/*
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* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/ByteBuffer.h>
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#include <AK/String.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/File.h>
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#include <LibMarkdown/Document.h>
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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int main(int argc, char* argv[])
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{
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int view_width = 0;
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if (isatty(STDOUT_FILENO)) {
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struct winsize ws;
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if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == 0)
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view_width = ws.ws_col;
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}
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if (view_width == 0)
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view_width = 80;
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if (pledge("stdio rpath", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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if (unveil("/usr/share/man", "r") < 0) {
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perror("unveil");
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return 1;
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}
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unveil(nullptr, nullptr);
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const char* section = nullptr;
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const char* name = nullptr;
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Core::ArgsParser args_parser;
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args_parser.set_general_help("Read manual pages. Try 'man man' to get started.");
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args_parser.add_positional_argument(section, "Section of the man page", "section", Core::ArgsParser::Required::No);
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args_parser.add_positional_argument(name, "Name of the man page", "name");
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args_parser.parse(argc, argv);
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auto make_path = [name](const char* section) {
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return String::formatted("/usr/share/man/man{}/{}.md", section, name);
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};
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if (!section) {
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const char* sections[] = {
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"1",
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"2",
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"3",
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"4",
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"5",
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"6",
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"7",
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"8"
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};
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for (auto s : sections) {
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String path = make_path(s);
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if (access(path.characters(), R_OK) == 0) {
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section = s;
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break;
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}
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}
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if (!section) {
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fprintf(stderr, "No man page for %s\n", name);
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exit(1);
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}
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}
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auto file = Core::File::construct();
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file->set_filename(make_path(section));
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if (!file->open(Core::IODevice::OpenMode::ReadOnly)) {
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perror("Failed to open man page file");
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exit(1);
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}
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if (pledge("stdio", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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dbgln("Loading man page from {}", file->filename());
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auto buffer = file->read_all();
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auto source = String::copy(buffer);
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printf("%s(%s)\t\tSerenityOS manual\n", name, section);
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auto document = Markdown::Document::parse(source);
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VERIFY(document);
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String rendered = document->render_for_terminal(view_width);
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printf("%s", rendered.characters());
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}
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