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correctly handle boost::regex_error in selectors

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This commit is contained in:
Maxime Coste 2012-03-04 20:11:22 +00:00
parent 583de3ba6e
commit 0a385885ff
1 changed files with 54 additions and 42 deletions
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44
src/selectors.cc
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@ -367,49 +367,48 @@ SelectionAndCaptures select_whole_buffer(const Selection& selection)
SelectionAndCaptures select_next_match(const Selection& selection, SelectionAndCaptures select_next_match(const Selection& selection,
const std::string& regex) const std::string& regex)
{ {
boost::regex ex(regex); try
{
BufferIterator begin = selection.last(); BufferIterator begin = selection.last();
BufferIterator end = begin; BufferIterator end = begin;
CaptureList captures; CaptureList captures;
try boost::regex ex(regex);
{
boost::match_results<BufferIterator> matches; boost::match_results<BufferIterator> matches;
if (boost::regex_search(begin+1, begin.buffer().end(), matches, if (boost::regex_search(begin+1, begin.buffer().end(),
ex)) matches, ex))
{ {
begin = matches[0].first; begin = matches[0].first;
end = matches[0].second; end = matches[0].second;
std::copy(matches.begin(), matches.end(), std::copy(matches.begin(), matches.end(),
std::back_inserter(captures)); std::back_inserter(captures));
} }
else if (boost::regex_search(begin.buffer().begin(), begin+1, matches, else if (boost::regex_search(begin.buffer().begin(), begin+1,
ex)) matches, ex))
{ {
begin = matches[0].first; begin = matches[0].first;
end = matches[0].second; end = matches[0].second;
std::copy(matches.begin(), matches.end(), std::copy(matches.begin(), matches.end(),
std::back_inserter(captures)); std::back_inserter(captures));
} }
}
catch (boost::regex_error& err)
{
throw runtime_error("regex error");
}
if (begin == end) if (begin == end)
++end; ++end;
return SelectionAndCaptures(begin, end - 1, std::move(captures)); return SelectionAndCaptures(begin, end - 1, std::move(captures));
} }
catch (boost::regex_error& err)
{
throw runtime_error(std::string("regex error: ") + err.what());
}
}
typedef boost::regex_iterator<BufferIterator> RegexIterator; typedef boost::regex_iterator<BufferIterator> RegexIterator;
SelectionAndCapturesList select_all_matches(const Selection& selection, SelectionAndCapturesList select_all_matches(const Selection& selection,
const std::string& regex) const std::string& regex)
{
try
{ {
boost::regex ex(regex); boost::regex ex(regex);
RegexIterator re_it(selection.begin(), selection.end(), ex); RegexIterator re_it(selection.begin(), selection.end(), ex);
@ -423,14 +422,22 @@ SelectionAndCapturesList select_all_matches(const Selection& selection,
CaptureList captures(re_it->begin(), re_it->end()); CaptureList captures(re_it->begin(), re_it->end());
result.push_back(SelectionAndCaptures(begin, begin == end ? end : end-1, result.push_back(SelectionAndCaptures(begin,
begin == end ? end : end-1,
std::move(captures))); std::move(captures)));
} }
return result; return result;
} }
catch (boost::regex_error& err)
{
throw runtime_error(std::string("regex error: ") + err.what());
}
}
SelectionAndCapturesList split_selection(const Selection& selection, SelectionAndCapturesList split_selection(const Selection& selection,
const std::string& separator_regex) const std::string& separator_regex)
{
try
{ {
boost::regex ex(separator_regex); boost::regex ex(separator_regex);
RegexIterator re_it(selection.begin(), selection.end(), ex, RegexIterator re_it(selection.begin(), selection.end(), ex,
@ -449,5 +456,10 @@ SelectionAndCapturesList split_selection(const Selection& selection,
result.push_back(Selection(begin, selection.last())); result.push_back(Selection(begin, selection.last()));
return result; return result;
} }
catch (boost::regex_error& err)
{
throw runtime_error(std::string("regex error: ") + err.what());
}
}
} }