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Libraries: Add LibMarkdown

This commit is contained in:
Sergey Bugaev 2019-09-21 00:46:18 +03:00 committed by Andreas Kling
parent dd5541fefc
commit 2e80b2b32f
17 changed files with 711 additions and 1 deletions

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#include <AK/StringBuilder.h>
#include <LibMarkdown/MDCodeBlock.h>
#include <LibMarkdown/MDDocument.h>
#include <LibMarkdown/MDHeading.h>
#include <LibMarkdown/MDList.h>
#include <LibMarkdown/MDParagraph.h>
String MDDocument::render_to_html() const
{
StringBuilder builder;
for (auto& block : m_blocks) {
auto s = block.render_to_html();
builder.append(s);
}
return builder.build();
}
String MDDocument::render_for_terminal() const
{
StringBuilder builder;
for (auto& block : m_blocks) {
auto s = block.render_for_terminal();
builder.append(s);
}
return builder.build();
}
template<typename Block>
static bool helper(Vector<StringView>::ConstIterator& lines, NonnullOwnPtrVector<MDBlock>& blocks)
{
NonnullOwnPtr<Block> block = make<Block>();
bool success = block->parse(lines);
if (!success)
return false;
blocks.append(move(block));
return true;
}
bool MDDocument::parse(const StringView& str)
{
const Vector<StringView> lines_vec = str.split_view('\n', true);
auto lines = lines_vec.begin();
while (true) {
if (lines.is_end())
return true;
if ((*lines).is_empty()) {
++lines;
continue;
}
bool any = helper<MDList>(lines, m_blocks) || helper<MDParagraph>(lines, m_blocks) || helper<MDCodeBlock>(lines, m_blocks) || helper<MDHeading>(lines, m_blocks);
if (!any)
return false;
}
}