================ String Operators ================ Concatenation ############# The _ (underscore) symbol is used concatenate two strings, or to attach one string to the end of another. δΎ‹:: Assume A="JACK" and B="JILL" =========== ============= Expression Result =========== ============= A\_"s DOG" JACKs DOG B_A JILLJACK A\_" and "_B JACK and JILL =========== ============= Equality ######## The = (equal sign) symbol is used to compare two strings to see if they are equal. This will return a boolean based on the result. Examples:: ============== ====== Expression Result ============== ====== 2000+11=2011 1 2000="2000: B" 0 2011=02011 1 2011="02011" 0 "Hex"="Tech"+5 5 "ABC"=" ABC"+3 3 ============== ====== Contains ######## The [ (left square bracket) symbol is used to check if a string contains another string. This will return a boolean based on the result. Examples:: ================== ====== Expression Result ================== ====== "RENSSELAER"["AER" 1 "RENSSELAER"["NOT" 0 ================== ====== Follows ####### The ] (right square bracket) symbol is used to determine if a string follows another string in collating sequence. .. _a link: http://en.wikipedia.org/wiki/Collating_sequence Example:: ===================== ====== Expression Result ===================== ====== "COPERNICUS"]"KEPLER" 0 "OBAMA"]"BUSH" 1 ===================== ======