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keyName = L"(CONSTRAINT\\s+\\w\\s+)?\\s+FOREIGN\\s+kEY\\s+(\\s+id\\s+)\\s+REFERENCES\\s+leagues\\s+(\\s+id\\s+)\\s+";

createCommand = L"CREATE TABLE OWNERS(OWNERID INTEGER PRIMARY KEY, ID INTEGER, OWNERNAME VARCHAR(100),FOREIGN KEY(ID) REFERENCES LEAGUES(ID))";

std::wregex pattern( keyName, std::regex_constants::icase );
std::wsmatch findings;
if( std::regex_match( createCommand, findings, pattern ) )
{
auto start = findings[1].first - createCommand.begin();
auto end = findings[1].second - createCommand.begin();
printf( "Match found" );
}

All,
Diese Frage stammt von https://stackoverflow.com/questions/79724359/case-insensitive-string-search-unabhängig von den Spaces-Inside? Der zu zeigen Code ... < /p>
Zuerst der Code: < /p>
[code]keyName = L"(CONSTRAINT\\s+\\w\\s+)?\\s+FOREIGN\\s+kEY\\s+(\\s+id\\s+)\\s+REFERENCES\\s+leagues\\s+(\\s+id\\s+)\\s+";

createCommand = L"CREATE TABLE OWNERS(OWNERID INTEGER PRIMARY KEY, ID INTEGER, OWNERNAME VARCHAR(100),FOREIGN KEY(ID) REFERENCES LEAGUES(ID))";

std::wregex pattern( keyName, std::regex_constants::icase );
std::wsmatch findings;
if( std::regex_match( createCommand, findings, pattern ) )
{
auto start = findings[1].first - createCommand.begin();
auto end = findings[1].second - createCommand.begin();
printf( "Match found" );
}
[/code]
Dieser Code findet die Übereinstimmung nicht.
Was fehlt mir?>