ladybird/Userland/Libraries/LibMarkdown/Heading.cpp
2021-01-12 12:17:46 +01:00

89 lines
2.8 KiB
C++

/*
* 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/StringBuilder.h>
#include <LibMarkdown/Heading.h>
namespace Markdown {
String Heading::render_to_html() const
{
StringBuilder builder;
builder.appendf("<h%zu>", m_level);
builder.append(m_text.render_to_html());
builder.appendf("</h%zu>\n", m_level);
return builder.build();
}
String Heading::render_for_terminal(size_t) const
{
StringBuilder builder;
switch (m_level) {
case 1:
case 2:
builder.append("\n\033[1m");
builder.append(m_text.render_for_terminal().to_uppercase());
builder.append("\033[0m\n");
break;
default:
builder.append("\n\033[1m");
builder.append(m_text.render_for_terminal());
builder.append("\033[0m\n");
break;
}
return builder.build();
}
OwnPtr<Heading> Heading::parse(Vector<StringView>::ConstIterator& lines)
{
if (lines.is_end())
return {};
const StringView& line = *lines;
size_t level;
for (level = 0; level < line.length(); level++) {
if (line[level] != '#')
break;
}
if (!level || level >= line.length() || line[level] != ' ')
return {};
StringView title_view = line.substring_view(level + 1, line.length() - level - 1);
auto text = Text::parse(title_view);
if (!text.has_value())
return {};
auto heading = make<Heading>(move(text.value()), level);
++lines;
return heading;
}
}