io-email 0.1.0

Email client library
Documentation
filter-query = filter *(SP filter)


filter =  "(" filter ")"
               ; nested filter

filter =/ and / or / not
               ; filter operators

filter =/ date / after-date / from / to / subject / body / flag
               ; filter conditions


and = filter SP "and" SP filter

or  = filter SP "or" SP filter

not = "not" SP filter


date        = "date" SP date-pattern

after-date  = "after" SP date-pattern

from        = "from" SP text-pattern

to          = "to" SP text-pattern

subject     = "subject" SP text-pattern

body        = "body" SP text-pattern

flag        = "flag" SP text-pattern


date-pattern =  4DIGIT "-" 2DIGIT "-" 2DIGIT
                     ; date matching "YYYY-MM-dd" format

date-pattern =/ 4DIGIT "/" 2DIGIT "/" 2DIGIT
                     ; date matching "YYYY/MM/dd" format

date-pattern =/ 2DIGIT "-" 2DIGIT "-" 4DIGIT
                     ; date matching "dd-MM-YYYY" format

date-pattern =/ 2DIGIT "/" 2DIGIT "/" 4DIGIT
                     ; date matching "dd/MM/YYYY" format


text-pattern = DQUOTE *VCHAR DQUOTE