Use the W/N connector in a search request to specify that one word or phrase must occur within N words of the other. For example, apple w/5 pear would retrieve any document that contained apple within 5 words of pear. The following are examples of search requests using W/N:
(apple or pear) w/5 banana
(apple w/5 banana) w/10 pear
(apple and banana) w/10 pear
The pre/N connector is like W/N but also specifies that the first expression must occur before the second. Example:
(apple or pear) pre/5 banana
Some types of complex expressions using the W/N connector will produce ambiguous results and should not be used. The following are examples of ambiguous search requests:
(apple and banana) w/10 (pear and grape)
(apple w/10 banana) w/10 (pear and grape)
In general, at least one of the two expressions connected by W/N must be a single word or phrase or a group of words and phrases connected by OR. Example:
(apple and banana) w/10 (pear or grape)
(apple and banana) w/10 orange tree
If you enter an ambiguous search request, dtSearch will display a message warning you of the error.
dtSearch uses two built in search words to mark the beginning and end of a file: xfirstword and xlastword. The terms are useful if you want to limit a search to the beginning or end of a file. For example, apple w/10 xlastword would search for apple within 10 words of the end of a document.