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Avoid running the extradata parsing regex unnecessarily

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This commit is contained in:
Thomas Goyne 2015-01-03 14:56:20 -08:00
parent bddf44ddde
commit d8bd9904d8
1 changed files with 16 additions and 14 deletions
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30
src/ass_dialogue.cpp
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@ -123,22 +123,24 @@ void AssDialogue::Parse(std::string const& raw) {
std::string text{tkn.next_tok().begin(), str.end()};
static const boost::regex extradata_test("^\\{(=\\d+)+\\}");
boost::match_results<std::string::iterator> rematch;
if (boost::regex_search(text.begin(), text.end(), rematch, extradata_test)) {
std::string extradata_str = rematch.str(0);
text = rematch.suffix().str();
if (text.size() > 1 && text[0] == '{' && text[1] == '=') {
static const boost::regex extradata_test("^\\{(=\\d+)+\\}");
boost::match_results<std::string::iterator> rematch;
if (boost::regex_search(text.begin(), text.end(), rematch, extradata_test)) {
std::string extradata_str = rematch.str(0);
text = rematch.suffix().str();
static const boost::regex idmatcher("=(\\d+)");
auto start = extradata_str.begin();
auto end = extradata_str.end();
std::vector<uint32_t> ids;
while (boost::regex_search(start, end, rematch, idmatcher)) {
auto id = boost::lexical_cast<uint32_t>(rematch.str(1));
ids.push_back(id);
start = rematch.suffix().first;
static const boost::regex idmatcher("=(\\d+)");
auto start = extradata_str.begin();
auto end = extradata_str.end();
std::vector<uint32_t> ids;
while (boost::regex_search(start, end, rematch, idmatcher)) {
auto id = boost::lexical_cast<uint32_t>(rematch.str(1));
ids.push_back(id);
start = rematch.suffix().first;
}
ExtradataIds = ids;
}
ExtradataIds = ids;
}
Text = text;