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LibMarkdown: Add LineIterator
LineIterator wraps a vector's ConstIterator, to provide an iterator that can work on indented container blocks (like lists and blockquotes).
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16 changed files with 139 additions and 21 deletions
41
Userland/Libraries/LibMarkdown/LineIterator.cpp
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Userland/Libraries/LibMarkdown/LineIterator.cpp
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/*
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* Copyright (c) 2021, Peter Elliott <pelliott@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibMarkdown/LineIterator.h>
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namespace Markdown {
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bool LineIterator::is_indented(StringView const& line) const
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{
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if (line.is_whitespace())
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return true;
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if (line.length() < m_indent)
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return false;
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for (size_t i = 0; i < m_indent; ++i) {
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if (line[i] != ' ')
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return false;
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}
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return true;
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}
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bool LineIterator::is_end() const
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{
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return m_iterator.is_end() || (!m_ignore_prefix_mode && !is_indented(*m_iterator));
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}
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StringView LineIterator::operator*() const
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{
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VERIFY(m_ignore_prefix_mode || is_indented(*m_iterator));
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if (m_iterator->is_whitespace())
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return *m_iterator;
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return m_iterator->substring_view(m_indent);
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}
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}
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