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https://github.com/RGBCube/serenity
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20faa93cb0
Previously, all Markdown blocks had a virtual parse method which has been swapped out for a static parse method returning an OwnPtr of that block's type. The Text class also now has a static parse method that will return an Optional<Text>.
98 lines
3.1 KiB
C++
98 lines
3.1 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/StringBuilder.h>
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#include <LibMarkdown/Paragraph.h>
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namespace Markdown {
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String Paragraph::render_to_html() const
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{
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StringBuilder builder;
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builder.appendf("<p>");
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builder.append(m_text.render_to_html());
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builder.appendf("</p>\n");
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return builder.build();
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}
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String Paragraph::render_for_terminal() const
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{
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StringBuilder builder;
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builder.append(m_text.render_for_terminal());
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builder.appendf("\n\n");
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return builder.build();
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}
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OwnPtr<Paragraph> Paragraph::parse(Vector<StringView>::ConstIterator& lines)
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{
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if (lines.is_end())
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return nullptr;
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bool first = true;
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StringBuilder builder;
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while (true) {
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if (lines.is_end())
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break;
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StringView line = *lines;
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if (line.is_empty())
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break;
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char ch = line[0];
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// See if it looks like a blockquote
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// or like an indented block.
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if (ch == '>' || ch == ' ')
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break;
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if (line.length() > 1) {
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// See if it looks like a heading.
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if (ch == '#' && (line[1] == '#' || line[1] == ' '))
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break;
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// See if it looks like a code block.
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if (ch == '`' && line[1] == '`')
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break;
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// See if it looks like a list.
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if (ch == '*' || ch == '-')
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if (line[1] == ' ')
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break;
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}
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if (!first)
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builder.append(' ');
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builder.append(line);
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first = false;
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++lines;
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}
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if (first)
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return nullptr;
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auto text = Text::parse(builder.build());
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if (!text.has_value())
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return nullptr;
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return make<Paragraph>(move(text.value()));
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}
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}
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