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select/split interpret count parameter as the capture group to use

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count being 0 by default, we use the whole match, but we can now
specify to use capture 1 with 1s<regex><ret>.
This commit is contained in:
Maxime Coste 2015-11-26 13:36:26 +00:00
parent bf7d3a4fec
commit f66bbdf209
3 changed files with 21 additions and 13 deletions
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10
src/normal.cc
View File

@ -704,26 +704,28 @@ void use_selection_as_search_pattern(Context& context, NormalParams params)
void select_regex(Context& context, NormalParams params)
{
const char reg = to_lower(params.reg ? params.reg : '/');
regex_prompt(context, "select:", [reg](Regex ex, PromptEvent event, Context& context) {
unsigned capture = (unsigned)params.count;
regex_prompt(context, "select:", [reg, capture](Regex ex, PromptEvent event, Context& context) {
if (ex.empty())
ex = Regex{context.main_sel_register_value(reg)};
else if (event == PromptEvent::Validate)
RegisterManager::instance()[reg] = ex.str();
if (not ex.empty() and not ex.str().empty())
select_all_matches(context.selections(), ex);
select_all_matches(context.selections(), ex, capture);
});
}
void split_regex(Context& context, NormalParams params)
{
const char reg = to_lower(params.reg ? params.reg : '/');
regex_prompt(context, "split:", [reg](Regex ex, PromptEvent event, Context& context) {
unsigned capture = (unsigned)params.count;
regex_prompt(context, "split:", [reg, capture](Regex ex, PromptEvent event, Context& context) {
if (ex.empty())
ex = Regex{context.main_sel_register_value(reg)};
else if (event == PromptEvent::Validate)
RegisterManager::instance()[reg] = ex.str();
if (not ex.empty() and not ex.str().empty())
split_selections(context.selections(), ex);
split_selections(context.selections(), ex, capture);
});
}

20
src/selectors.cc
View File

@ -560,8 +560,12 @@ void select_buffer(SelectionList& selections)
using RegexIt = RegexIterator<BufferIterator>;
void select_all_matches(SelectionList& selections, const Regex& regex)
void select_all_matches(SelectionList& selections, const Regex& regex, unsigned capture)
{
const unsigned mark_count = regex.mark_count();
if (capture > mark_count)
throw runtime_error("invalid capture number");
Vector<Selection> result;
auto& buffer = selections.buffer();
for (auto& sel : selections)
@ -570,13 +574,12 @@ void select_all_matches(SelectionList& selections, const Regex& regex)
RegexIt re_it(buffer.iterator_at(sel.min()), sel_end, regex);
RegexIt re_end;
const unsigned mark_count = regex.mark_count();
for (; re_it != re_end; ++re_it)
{
auto begin = ensure_char_start(buffer, (*re_it)[0].first);
auto begin = ensure_char_start(buffer, (*re_it)[capture].first);
if (begin == sel_end)
continue;
auto end = ensure_char_start(buffer, (*re_it)[0].second);
auto end = ensure_char_start(buffer, (*re_it)[capture].second);
CaptureList captures;
captures.reserve(mark_count);
@ -598,8 +601,11 @@ void select_all_matches(SelectionList& selections, const Regex& regex)
selections = SelectionList{buffer, std::move(result)};
}
void split_selections(SelectionList& selections, const Regex& regex)
void split_selections(SelectionList& selections, const Regex& regex, unsigned capture)
{
if (capture > regex.mark_count())
throw runtime_error("invalid capture number");
Vector<Selection> result;
auto& buffer = selections.buffer();
auto buf_end = buffer.end();
@ -612,13 +618,13 @@ void split_selections(SelectionList& selections, const Regex& regex)
for (; re_it != re_end; ++re_it)
{
BufferIterator end = (*re_it)[0].first;
BufferIterator end = (*re_it)[capture].first;
if (end == buf_end)
continue;
end = ensure_char_start(buffer, end);
result.push_back(keep_direction({ begin.coord(), (begin == end) ? end.coord() : utf8::previous(end, begin).coord() }, sel));
begin = ensure_char_start(buffer, (*re_it)[0].second);
begin = ensure_char_start(buffer, (*re_it)[capture].second);
}
if (begin.coord() <= sel.max())
result.push_back(keep_direction({ begin.coord(), sel.max() }, sel));

4
src/selectors.hh
View File

@ -292,8 +292,8 @@ Selection find_next_match(const Buffer& buffer, const Selection& sel, const Rege
return {begin.coord(), end.coord(), std::move(captures)};
}
void select_all_matches(SelectionList& selections, const Regex& regex);
void split_selections(SelectionList& selections, const Regex& separator_regex);
void select_all_matches(SelectionList& selections, const Regex& regex, unsigned capture = 0);
void split_selections(SelectionList& selections, const Regex& separator_regex, unsigned capture = 0);
struct MatchingPair { Codepoint opening, closing; };
Selection select_surrounding(const Buffer& buffer, const Selection& selection,