HP IAP Version 2.1 User Guide, March 2011

And the following queries would not match:
"John Tyler"
"Quincy Adams"
"John Quincy Adams"
"John Adams 1797–1801"
PDF documents
PDF documents are another case where the internal text representation can vary widely from the
visible presentation in PDF readers. The following issues can arise:
• Text sequences can appear out of order on the same page depending on how the page was
composed.
• Text can appear doubled or can have spacing inserted into or removed from the internal repres-
entation to assist some specific visual presentation.
In general, PDF documents generated via print drivers are far more susceptible to these issues than
PDF documents generated directly using Acrobat and other composing tools. However, because of
the nature of PDF itself, even they are not immune.
Boolean query expressions
You can combine words, fuzzy words, and word sequences using the Boolean (logical) operators
AND, OR, and NOT. These operators must be uppercase.
• Using the AND and OR operators, page 58
• Using the NOT operator, page 59
• Separators, page 60
• Sub-expressions, page 60
• Nested query expressions, page 60
Using the AND and OR operators
AND is the default connector in query expressions. You do not need to supply AND explicitly. It is
assumed, if neither AND nor OR is used explicitly. For example, the query peace quiet is equivalent
to the query peace AND quiet.
The following table describes Boolean AND and OR operators, where exp1 and exp2 represent a
word, word sequence, or other Boolean query expression.
Table 12 Boolean AND and OR operators
MatchesSyntax
all documents that match either exp1 or exp2exp1 OR exp2
all documents that match both exp1 and exp2
exp1 AND exp2
alternative syntax: exp1 && exp2
alternative syntax: exp1 exp2
Query expression syntax and matching58