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package query
type QueryParser Peg {
}
e <- '\"' condition ( ' '+ and ' '+ condition )* '\"' !.
condition <- tag ' '* (le ' '* (number / time / date)
/ ge ' '* (number / time / date)
/ l ' '* (number / time / date)
/ g ' '* (number / time / date)
/ equal ' '* (number / time / date / value)
/ contains ' '* value
/ exists
)
tag <- < (![ \t\n\r\\()"'=><] .)+ >
value <- < '\'' (!["'] .)* '\''>
number <- < ('0'
/ [1-9] digit* ('.' digit*)?) >
digit <- [0-9]
time <- "TIME " < year '-' month '-' day 'T' digit digit ':' digit digit ':' digit digit (('-' / '+') digit digit ':' digit digit / 'Z') >
date <- "DATE " < year '-' month '-' day >
year <- ('1' / '2') digit digit digit
month <- ('0' / '1') digit
day <- ('0' / '1' / '2' / '3') digit
and <- "AND"
equal <- "="
contains <- "CONTAINS"
exists <- "EXISTS"
le <- "<="
ge <- ">="
l <- "<"
g <- ">"