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/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/String.h>
#include <AK/StringBuilder.h>
#include <LibMarkdown/HorizontalRule.h>
#include <LibMarkdown/Visitor.h>
#include <LibRegex/Regex.h>
namespace Markdown {
String HorizontalRule::render_to_html(bool) const
{
return "<hr />\n";
}
String HorizontalRule::render_for_terminal(size_t view_width) const
{
StringBuilder builder(view_width + 1);
for (size_t i = 0; i < view_width; ++i)
builder.append('-');
builder.append("\n\n");
return builder.to_string();
}
RecursionDecision HorizontalRule::walk(Visitor& visitor) const
{
RecursionDecision rd = visitor.visit(*this);
if (rd != RecursionDecision::Recurse)
return rd;
// Normalize return value.
return RecursionDecision::Continue;
}
static Regex<ECMA262> thematic_break_re("^ {0,3}([\\*\\-_])(\\s*\\1\\s*){2,}$");
OwnPtr<HorizontalRule> HorizontalRule::parse(LineIterator& lines)
{
if (lines.is_end())
return {};
StringView line = *lines;
auto match = thematic_break_re.match(line);
if (!match.success)
return {};
++lines;
return make<HorizontalRule>();
}
}
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