README.md

BooleanExpression

Simple Lexer does to make a search engine

Operators

You can combinate multiple search expressions with operators:

• & or _ (Space) : And
• | : Or
• ! : Not
• ( ) : Isolate expression

Warning : Weight of operator & is heavier than operator | Exemple:

a | b & c

is same than

a | (b & c)

How to use it

bool StringFinder(const char* pLiteral, const void* pData)
{
    return strstr((const char*)pData, pLiteral) != NULL;
}

BooleanExpression oExpr;
if (oExpr.Generate("string & find"))
{
    if (oExpr.Test("My string to find", StringFinder))
    {
        printf("Found it\n");
    }
}