ladybird/Userland/Utilities/md.cpp
Carwyn Nelson e44abaa777 LibMarkdown: Convert render_to_terminal to String
This commit converts render_to_terminal from DeprecatedString to return
an ErrorOr<String>. This is to aid moving `man` away from
DeprecatedString.

I have opted not to convert render_to_html and render_to_inline_html for
now to keep this commit as small as possible.
2023-07-03 02:05:32 +02:00

66 lines
1.9 KiB
C++

/*
* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/DeprecatedString.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <LibMarkdown/Document.h>
#include <sys/ioctl.h>
#include <unistd.h>
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::pledge("stdio rpath tty"));
StringView filename;
bool html = false;
int view_width = 0;
Core::ArgsParser args_parser;
args_parser.set_general_help("Render Markdown to some other format.");
args_parser.add_option(html, "Render to HTML rather than for the terminal", "html", 'H');
args_parser.add_option(view_width, "Viewport width for the terminal (defaults to current terminal width)", "view-width", 0, "width");
args_parser.add_positional_argument(filename, "Path to Markdown file", "path", Core::ArgsParser::Required::No);
args_parser.parse(arguments);
if (!html && view_width == 0) {
if (isatty(STDOUT_FILENO)) {
struct winsize ws;
if (ioctl(STDERR_FILENO, TIOCGWINSZ, &ws) < 0)
view_width = 80;
else
view_width = ws.ws_col;
} else {
view_width = 80;
}
}
auto file = TRY(Core::File::open_file_or_standard_stream(filename, Core::File::OpenMode::Read));
TRY(Core::System::pledge("stdio"));
auto buffer = TRY(file->read_until_eof());
dbgln("Read size {}", buffer.size());
auto input = DeprecatedString::copy(buffer);
auto document = Markdown::Document::parse(input);
if (!document) {
warnln("Error parsing Markdown document");
return 1;
}
if (html) {
out("{}", document->render_to_html());
} else {
out("{}", TRY(document->render_for_terminal(view_width)));
}
return 0;
}