Method checkTokenMatchPatterns

lib/checkinternal.cpp:34–83

#include <vector>

void CheckInternalImpl::checkTokenMatchPatterns()
{
    const SymbolDatabase *symbolDatabase = mTokenizer->getSymbolDatabase();
    for (const Scope *scope : symbolDatabase->functionScopes) {
        for (const Token* tok = scope->bodyStart->next(); tok != scope->bodyEnd; tok = tok->next()) {
            if (!Token::simpleMatch(tok, "Token :: Match (") && !Token::simpleMatch(tok, "Token :: findmatch ("))
                continue;

            const std::string& funcname = tok->strAt(2);

            // Get pattern string
            const Token *patternTok = tok->tokAt(4)->nextArgument();
            if (!patternTok || patternTok->tokType() != Token::eString)
                continue;

            const std::string pattern = patternTok->strValue();
            if (pattern.empty()) {
                simplePatternError(tok, pattern, funcname);
                continue;
            }

            if (pattern.find("||") != std::string::npos || pattern.find(" | ") != std::string::npos || pattern[0] == '|' || (pattern[pattern.length() - 1] == '|' && pattern[pattern.length() - 2] == ' '))
                orInComplexPattern(tok, pattern, funcname);

            // Check for signs of complex patterns
            if (pattern.find_first_of("[|") != std::string::npos)
                continue;
            if (pattern.find("!!") != std::string::npos)
                continue;

            bool complex = false;
            size_t index = pattern.find('%');
            while (index != std::string::npos) {
                if (pattern.length() <= index + 2) {
                    complex = true;
                    break;
                }
                if (pattern[index + 1] == 'o' && pattern[index + 2] == 'r') // %or% or %oror%
                    index = pattern.find('%', index + 1);
                else {
                    complex = true;
                    break;
                }
                index = pattern.find('%', index + 1);
            }
            if (!complex)
                simplePatternError(tok, pattern, funcname);
        }
    }
}

void CheckInternalImpl::checkRedundantTokCheck()
{