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/*
* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/String.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"));
const char* filename = nullptr;
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 = Core::File::construct();
bool success;
if (filename == nullptr) {
success = file->open(STDIN_FILENO, Core::OpenMode::ReadOnly, Core::File::ShouldCloseFileDescriptor::No);
} else {
file->set_filename(filename);
success = file->open(Core::OpenMode::ReadOnly);
}
if (!success) {
warnln("Error: {}", file->error_string());
return 1;
}
TRY(Core::System::pledge("stdio"));
auto buffer = file->read_all();
dbgln("Read size {}", buffer.size());
auto input = String::copy(buffer);
auto document = Markdown::Document::parse(input);
if (!document) {
warnln("Error parsing Markdown document");
return 1;
}
String res = html ? document->render_to_html() : document->render_for_terminal(view_width);
out("{}", res);
return 0;
}
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