mirror of
https://github.com/LadybirdBrowser/ladybird.git
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72 lines
2.1 KiB
C++
72 lines
2.1 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/String.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/File.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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#include <LibMarkdown/Document.h>
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#include <sys/ioctl.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 tty"));
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char const* filename = nullptr;
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bool html = false;
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int view_width = 0;
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Core::ArgsParser args_parser;
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args_parser.set_general_help("Render Markdown to some other format.");
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args_parser.add_option(html, "Render to HTML rather than for the terminal", "html", 'H');
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args_parser.add_option(view_width, "Viewport width for the terminal (defaults to current terminal width)", "view-width", 0, "width");
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args_parser.add_positional_argument(filename, "Path to Markdown file", "path", Core::ArgsParser::Required::No);
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args_parser.parse(arguments);
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if (!html && view_width == 0) {
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if (isatty(STDOUT_FILENO)) {
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struct winsize ws;
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if (ioctl(STDERR_FILENO, TIOCGWINSZ, &ws) < 0)
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view_width = 80;
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else
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view_width = ws.ws_col;
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} else {
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view_width = 80;
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}
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}
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auto file = Core::File::construct();
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bool success;
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if (filename == nullptr) {
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success = file->open(STDIN_FILENO, Core::OpenMode::ReadOnly, Core::File::ShouldCloseFileDescriptor::No);
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} else {
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file->set_filename(filename);
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success = file->open(Core::OpenMode::ReadOnly);
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}
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if (!success) {
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warnln("Error: {}", file->error_string());
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return 1;
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}
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TRY(Core::System::pledge("stdio"));
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auto buffer = file->read_all();
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dbgln("Read size {}", buffer.size());
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auto input = String::copy(buffer);
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auto document = Markdown::Document::parse(input);
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if (!document) {
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warnln("Error parsing Markdown document");
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return 1;
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}
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String res = html ? document->render_to_html() : document->render_for_terminal(view_width);
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out("{}", res);
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return 0;
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}
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