Standard Boolean operators AND, OR, and NOT are available.
Right truncation is invoked with the "?" operator. One "?" will produced unlimited right truncation results. To limit truncation by number of characters, use a single "?" for each character. To limit right truncation to one character, add a "?" to the end of the term and then, separated by a space, an additional "?". Internal truncation functions similarly, with each "?" representing a possible character. Parentheses may be used to group terms. Unlimited internal truncation and left truncation are not supported in DialogPRO.