# Simple

cat
"cat"
comp.os.linux
xml:element
"<xml:element>"
"="
"prox/>=/5/word"
("cat")
((dog))

# index relation term

title = "fish"
title exact fish
title any fish
title all fish
title > 9
title >= 23
dc.title any "fish chips"
dc.title any/stem fish
dc.fish all/stem/fuzzy "fish chips"
(title any frog)
((dc.title any/stem "frog pond"))

# Simple Boolean

cat or dog
cat and fish
cat not frog
(cat not frog)
"cat" not "fish food"
xml and "prox///word/"
a or b and c not d

# I/R/T plus Boolean

bath.author any fish and dc.title all "cat dog"
(title any/stem "fish dog" or "and")

# Prox

cat prox hat
cat prox/=/3/word/ordered hat
cat prox//3 hat
"fish food" prox///sentence "and"
title all "chips frog" prox//5/word "any"
(dc.author exact "jones" prox//5 title >= "smith")
((cat prox hat))

# Special characters
(cat^)
"cat"
"^cat says \"fish\""
"cat*fish"
cat?dog
(("^cat*fishdog\"horse?"))

# Nesting Parens

(((cat or dog) or horse) and frog)
(cat and dog) or (horse and frog)
(cat and (horse or frog)) and chips

# Lame searches

"any" or "all:stem" and "all" exact "any" prox///word "prox"="fuzzy"
((((((((("any")))))))))


# Invalid searches [should error]

>
===
cat or
index any
index any/wrong term
a prox/wrong b
()
(a
index any fish)
(cat any dog or ())
fred and any
((fred or all))
sorry = (mike)