# Simple 

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

# 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"))
dc.title scr "fish frog chicken"

# Simple Boolean

cat or dog
cat and fish
cat not frog
(cat not frog)
"cat" not "fish food"
xml and "prox///"
fred and any
((fred or all))
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 exact
(dc.author exact "jones" prox/</5/element 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

# Prefix Maps

> foo="http://www.loc.gov/zing/cql/dc-indexes/" foo.title="fish"
> "http://www.loc.gov/zing/cql/dc-indexes/" title="fish"
> foo="http://www.loc.gov/zing/cql/dc-indexes" > ccg = "http://srw.o-r-g.org/indexSets/ccg/" foo.title="fish" and ccg.force=3

# Lame searches

any or all:stem and all exact any prox prox=fuzzy
(((((((((any)))))))))
""
> any > any = exact any > 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 ())
title = ("illegal parentheses")
"quoted" any "illegal quotes"
> illegal="urn:missingQuery"
"fish" and > illegal="urn:invalidPrefixLocation" "chips"