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show_matching_char highlighter use the matching_pairs options

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This commit is contained in:
Justin Frank 2018-10-01 20:38:10 -07:00
parent 551021d6e5
commit f3f52fc818
1 changed files with 37 additions and 31 deletions
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68
src/highlighters.cc
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@ -26,6 +26,8 @@
namespace Kakoune
{
using Utf8Iterator = utf8::iterator<BufferIterator>;
template<typename Func>
std::unique_ptr<Highlighter> make_highlighter(Func func, HighlightPass pass = HighlightPass::Colorize)
{
@ -1130,8 +1132,7 @@ constexpr StringView LineNumbersHighlighter::ms_id;
void show_matching_char(HighlightContext context, DisplayBuffer& display_buffer, BufferRange)
{
const Face face = context.context.faces()["MatchingChar"];
using CodepointPair = std::pair<Codepoint, Codepoint>;
static const CodepointPair matching_chars[] = { { '(', ')' }, { '{', '}' }, { '[', ']' }, { '<', '>' } };
const auto& matching_pairs = context.context.options()["matching_pairs"].get<Vector<Codepoint, MemoryDomain::Options>>();
const auto range = display_buffer.range();
const auto& buffer = context.context.buffer();
for (auto& sel : context.context.selections())
@ -1139,43 +1140,48 @@ void show_matching_char(HighlightContext context, DisplayBuffer& display_buffer,
auto pos = sel.cursor();
if (pos < range.begin or pos >= range.end)
continue;
auto c = buffer.byte_at(pos);
for (auto& pair : matching_chars)
Utf8Iterator it{buffer.iterator_at(pos), buffer};
auto match = find(matching_pairs, *it);
if (match == matching_pairs.end())
continue;
int level = 0;
if (((match - matching_pairs.begin()) % 2) == 0)
{
int level = 1;
if (c == pair.first)
const Codepoint opening = *match;
const Codepoint closing = *(match+1);
while (it != buffer.end())
{
for (auto it = get_iterator(buffer, pos)+1,
end = get_iterator(buffer, range.end); it != end; ++it)
if (*it == opening)
++level;
else if (*it == closing and --level == 0)
{
char c = *it;
if (c == pair.first)
++level;
else if (c == pair.second and --level == 0)
{
highlight_range(display_buffer, it.coord(), (it+1).coord(), false,
apply_face(face));
break;
}
highlight_range(display_buffer, it.base().coord(), (it+1).base().coord(),
false, apply_face(face));
break;
}
++it;
}
else if (c == pair.second and pos > range.begin)
}
else if (pos > range.begin)
{
const Codepoint opening = *(match-1);
const Codepoint closing = *match;
while (true)
{
for (auto it = get_iterator(buffer, pos)-1,
end = get_iterator(buffer, range.begin); true; --it)
if (*it == closing)
++level;
else if (*it == opening and --level == 0)
{
char c = *it;
if (c == pair.second)
++level;
else if (c == pair.first and --level == 0)
{
highlight_range(display_buffer, it.coord(), (it+1).coord(), false,
apply_face(face));
break;
}
if (it == end)
break;
highlight_range(display_buffer, it.base().coord(), (it+1).base().coord(),
false, apply_face(face));
break;
}
if (it == buffer.begin())
break;
--it;
}
}
}