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https://github.com/RGBCube/serenity
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aa65f664a9
Some constructs will require the width of the terminal (or a general 'width') to be rendered correctly, such as tables.
98 lines
3.5 KiB
C++
98 lines
3.5 KiB
C++
/*
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* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/ByteBuffer.h>
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#include <AK/OwnPtr.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 <string.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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if (pledge("stdio rpath tty", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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const char* file_name = 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.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(file_name, "Path to Markdown file", "path", Core::ArgsParser::Required::No);
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args_parser.parse(argc, argv);
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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 (file_name == nullptr) {
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success = file->open(STDIN_FILENO, Core::IODevice::OpenMode::ReadOnly, Core::File::ShouldCloseFileDescription::No);
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} else {
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file->set_filename(file_name);
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success = file->open(Core::IODevice::OpenMode::ReadOnly);
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}
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if (!success) {
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fprintf(stderr, "Error: %s\n", file->error_string());
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return 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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auto buffer = file->read_all();
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dbg() << "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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fprintf(stderr, "Error parsing\n");
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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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printf("%s", res.characters());
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}
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