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Share implementation in complete_id/complete_group_id

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This commit is contained in:
Maxime Coste 2014-06-16 00:49:39 +01:00
parent 205e8b2889
commit b5f5610cbe
1 changed files with 39 additions and 46 deletions
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83
src/highlighter_group.cc
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@ -64,48 +64,47 @@ HighlighterFunc HighlighterGroup::get_highlighter(StringView path) const
throw group_not_found("not a group: "_str + id);
}
Completions HighlighterGroup::complete_id(StringView path, ByteCount cursor_pos) const
template<Completions (HighlighterGroup::*hg_complete)(StringView path, ByteCount cursor_pos) const,
Completions (HierachicalHighlighter::*hh_complete)(StringView path, ByteCount cursor_pos) const,
typename Condition>
Completions complete_impl(const id_map<HighlighterFunc>& highlighters, Condition condition,
StringView path, ByteCount cursor_pos)
{
auto sep_it = find(path, path_separator);
StringView id(path.begin(), sep_it);
if (sep_it == path.end())
return { 0_byte, id.length(), m_highlighters.complete_id(id, cursor_pos) };
return { 0_byte, path.length(), highlighters.complete_id_if(path, cursor_pos, condition) };
auto it = m_highlighters.find(id);
if (it != m_highlighters.end())
auto it = highlighters.find(id);
if (it != highlighters.end())
{
const ByteCount offset = (int)(sep_it + 1 - path.begin());
cursor_pos -= offset;
if (auto* group = it->second.target<HighlighterGroup>())
return offset_pos(group->complete_id({sep_it+1, path.end()}, cursor_pos), offset);
return offset_pos((group->*hg_complete)({sep_it+1, path.end()}, cursor_pos), offset);
if (auto* hier_group = it->second.target<HierachicalHighlighter>())
return offset_pos(hier_group->complete_id({sep_it+1, path.end()}, cursor_pos), offset);
return offset_pos((hier_group->*hh_complete)({sep_it+1, path.end()}, cursor_pos), offset);
}
return {};
}
Completions HighlighterGroup::complete_id(StringView path, ByteCount cursor_pos) const
{
return complete_impl<
&HighlighterGroup::complete_id,
&HierachicalHighlighter::complete_id
>(m_highlighters, [](const HighlighterAndId&) { return true; }, path, cursor_pos);
}
Completions HighlighterGroup::complete_group_id(StringView path, ByteCount cursor_pos) const
{
auto sep_it = find(path, path_separator);
StringView id(path.begin(), sep_it);
if (sep_it == path.end())
return { 0_byte, path.length(), m_highlighters.complete_id_if(
path, cursor_pos, [](const HighlighterAndId& func) {
return func.second.template target<HighlighterGroup>() or
func.second.template target<HierachicalHighlighter>();
}) };
auto it = m_highlighters.find(id);
if (it != m_highlighters.end())
{
const ByteCount offset = (int)(sep_it + 1 - path.begin());
cursor_pos -= offset;
if (auto* group = it->second.target<HighlighterGroup>())
return offset_pos(group->complete_group_id({sep_it+1, path.end()}, cursor_pos), offset);
if (auto* hier_group = it->second.target<HierachicalHighlighter>())
return offset_pos(hier_group->complete_group_id({sep_it+1, path.end()}, cursor_pos), offset);
}
return {};
return complete_impl<
&HighlighterGroup::complete_group_id,
&HierachicalHighlighter::complete_group_id
>(m_highlighters, [](const HighlighterAndId& func) {
return func.second.target<HighlighterGroup>() or
func.second.target<HierachicalHighlighter>();
}, path, cursor_pos);
}
HighlighterGroup& HierachicalHighlighter::get_group(StringView path)
@ -134,40 +133,34 @@ HighlighterFunc HierachicalHighlighter::get_highlighter(StringView path) const
return HighlighterFunc(std::ref(it->second));
}
Completions HierachicalHighlighter::complete_id(StringView path, ByteCount cursor_pos) const
template<Completions (HighlighterGroup::*complete)(StringView path, ByteCount cursor_pos) const>
Completions complete_impl(const HierachicalHighlighter::GroupMap& groups,
StringView path, ByteCount cursor_pos)
{
auto sep_it = find(path, path_separator);
StringView id(path.begin(), sep_it);
auto it = m_groups.find(id);
auto it = groups.find(id);
if (sep_it == path.end())
return { 0_byte, id.length(), m_groups.complete_id(id, cursor_pos) };
return { 0_byte, id.length(), groups.complete_id(id, cursor_pos) };
if (it != m_groups.end())
if (it != groups.end())
{
const ByteCount offset = (int)(sep_it + 1- path.begin());
return offset_pos(
it->second.complete_id({sep_it+1, path.end()},
(it->second.*complete)({sep_it+1, path.end()},
cursor_pos - offset), offset);
}
return {};
}
Completions HierachicalHighlighter::complete_id(StringView path, ByteCount cursor_pos) const
{
return complete_impl<&HighlighterGroup::complete_id>(m_groups, path, cursor_pos);
}
Completions HierachicalHighlighter::complete_group_id(StringView path, ByteCount cursor_pos) const
{
auto sep_it = find(path, path_separator);
StringView id(path.begin(), sep_it);
auto it = m_groups.find(id);
if (sep_it == path.end())
return { 0_byte, id.length(), m_groups.complete_id(id, cursor_pos) };
if (it != m_groups.end())
{
const ByteCount offset = (int)(sep_it + 1- path.begin());
return offset_pos(
it->second.complete_group_id({sep_it+1, path.end()},
cursor_pos - offset), offset);
}
return {};
return complete_impl<&HighlighterGroup::complete_group_id>(m_groups, path, cursor_pos);
}
}