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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/StringBuilder.h>
#include <LibMarkdown/MDList.h>
String MDList::render_to_html() const
{
StringBuilder builder;
const char* tag = m_is_ordered ? "ol" : "ul";
builder.appendf("<%s>", tag);
for (auto& item : m_items) {
builder.append("<li>");
builder.append(item.render_to_html());
builder.append("</li>\n");
}
builder.appendf("</%s>\n", tag);
return builder.build();
}
String MDList::render_for_terminal() const
{
StringBuilder builder;
int i = 0;
for (auto& item : m_items) {
builder.append(" ");
if (m_is_ordered)
builder.appendf("%d. ", ++i);
else
builder.append("* ");
builder.append(item.render_for_terminal());
builder.append("\n");
}
builder.append("\n");
return builder.build();
}
bool MDList::parse(Vector<StringView>::ConstIterator& lines)
{
bool first = true;
while (true) {
if (lines.is_end())
break;
const StringView& line = *lines;
if (line.is_empty())
break;
bool appears_unordered = false;
size_t offset = 0;
if (line.length() > 2)
if (line[1] == ' ' && (line[0] == '*' || line[0] == '-')) {
appears_unordered = true;
offset = 2;
}
bool appears_ordered = false;
for (size_t i = 0; i < 10 && i < line.length(); i++) {
char ch = line[i];
if ('0' <= ch && ch <= '9')
continue;
if (ch == '.' || ch == ')')
if (i + 1 < line.length() && line[i + 1] == ' ') {
appears_ordered = true;
offset = i + 1;
}
break;
}
ASSERT(!(appears_unordered && appears_ordered));
if (!appears_unordered && !appears_ordered)
return false;
if (first)
m_is_ordered = appears_ordered;
else if (m_is_ordered != appears_ordered)
return false;
first = false;
MDText text;
bool success = text.parse(line.substring_view(offset, line.length() - offset));
ASSERT(success);
m_items.append(move(text));
++lines;
}
return !first;
}
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