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/*
* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/ByteBuffer.h>
#include <AK/OwnPtr.h>
#include <AK/String.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <LibMarkdown/Document.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <unistd.h>
int main(int argc, char* argv[])
{
if (pledge("stdio rpath tty", nullptr) < 0) {
perror("pledge");
return 1;
}
const char* file_name = 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(file_name, "Path to Markdown file", "path", Core::ArgsParser::Required::No);
args_parser.parse(argc, argv);
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 (file_name == nullptr) {
success = file->open(STDIN_FILENO, Core::IODevice::OpenMode::ReadOnly, Core::File::ShouldCloseFileDescriptor::No);
} else {
file->set_filename(file_name);
success = file->open(Core::IODevice::OpenMode::ReadOnly);
}
if (!success) {
fprintf(stderr, "Error: %s\n", file->error_string());
return 1;
}
if (pledge("stdio", nullptr) < 0) {
perror("pledge");
return 1;
}
auto buffer = file->read_all();
dbgln("Read size {}", buffer.size());
auto input = String::copy(buffer);
auto document = Markdown::Document::parse(input);
if (!document) {
fprintf(stderr, "Error parsing\n");
return 1;
}
String res = html ? document->render_to_html() : document->render_for_terminal(view_width);
printf("%s", res.characters());
}
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