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Parser::extractCommand: parse with string_view instead of regex to avoid inconsistent behavior in libcs

This commit is contained in:
Albert S. 2018-11-05 22:36:18 +01:00
parent bcf9d605d2
commit da2a5b10fe
1 changed files with 11 additions and 7 deletions
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18
parser.cpp
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@ -65,15 +65,19 @@ std::vector<std::string> Parser::extractCategories(std::string content) const
std::string Parser::extractCommand(std::string cmdname, std::string content) const
{
std::string regstr = "(\\s|\\S)*\\[cmd\\:" + cmdname + "\\](.*?)\\[/cmd\\:" + cmdname + "\\](\\s|\\S)*";
std::regex reg{regstr};
std::smatch match;
if(std::regex_match(content, match, reg))
{
std::string cmd = "[cmd:" + cmdname + "]";
std::string cmdend = "[/cmd:" + cmdname + "]";
if(match.size() > 1)
std::string_view view = content;
size_t pos = 0;
if((pos = view.find(cmd)) != std::string::npos)
{
view.remove_prefix(pos);
view.remove_prefix(cmd.size());
if((pos = view.find(cmdend)) != std::string::npos)
{
return match.str(2);
auto result = view.substr(0, pos);
return std::string{result};
}
}
return "";