Predicate.Examples.Common

Common predicates for use with Refined, Refined2, and Refined3

datetime

type DateNip = ParseTimes Day DateFmts Id

ip type for reading one of many date formats from DateFmts

type DateFmts = '["%Y-%m-%d", "%m/%d/%y", "%B %d %Y"]

type DateTimeFmts = '["%Y-%m-%d %H:%M:%S", "%m/%d/%y %H:%M:%S", "%B %d %Y %H:%M:%S", "%Y-%m-%dT%H:%M:%S"]

type DateTimeNip = ParseTimes UTCTime DateTimeFmts Id

ip type for reading one of many date time formats from DateTimeFmts

type Dtip t = ParseTimeP t "%F %T"

ip type for reading in a date time

type Dtfmt = FormatTimeP "%F %T"

fmt type for formatting the date time compatible ith Dtip

type DdmmyyyyRE = "^(\\d{2})-(\\d{2})-(\\d{4})$"

type Ddmmyyyyop = GuardsDetail "%s %d is out of range" '['("day", Between 1 31 Id), '("month", Between 1 12 Id), '("year", Between 1990 2050 Id)] >> True

type Ddmmyyyyop' = Bools '['("day", Between 1 31 Id), '("month", Between 1 12 Id), '("year", Between 1990 2050 Id)]

type JsonMicrosoftDateTime = Do '[Rescan "^Date\\((\\d+)(\\d{3}[+-]\\d{4})\\)", Head, Snd, (Id !! 0) <> ("." <> (Id !! 1)), ParseTimeP ZonedTime "%s%Q%z"]

time

type Hmsip = Map' (ReadP Int Id) (Resplit ":")

ip type for reading in time

type Hmsop = GuardsDetail "%s invalid: found %d" '['("hours", Between 0 23 Id), '("minutes", Between 0 59 Id), '("seconds", Between 0 59 Id)] >> True

op type for validating the time using a guard

type Hmsop' = Bools '['("hours", Between 0 23 Id), '("minutes", Between 0 59 Id), '("seconds", Between 0 59 Id)]

op type for validating the time using predicate

type Hmsfmt = PrintL 3 "%02d:%02d:%02d" Id

fmt type for formatting the time

type HmsRE = "^([0-1][0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])$"

regular expression for a time component

credit cards

type Luhnip = Map' (ReadP Int Id) (Remove "-" Id >> Ones)

ip type for converting a credit card number to a list of singleton digits

type Luhnop (n :: Nat) = GuardBool (PrintT "expected %d digits but found %d" '(n, Len)) (Len == n) && GuardBool "invalid checkdigit" IsLuhn

op type for validating a credit card number by check digit

type Luhnfmt (ns :: [Nat]) = ConcatMap (ShowP Id) Id >> (SplitAts ns Id >> (Intercalate '["-"] Id >> Concat))

fmt type for formatting a credit card using ns as the format

type Luhn' (n :: Nat) = Msg "Luhn'" (Do '[Guard (PrintT "incorrect length: found %d but expected %d in [%s]" '(Len, n, Id)) (Len == n), Do '[Ones, Map (ReadP Int Id), Reverse, ZipWith ((Fst * Snd) >> If (Id >= 10) (Id - 9) Id) (Cycle n [1, 2]) Id, Sum], Guard (PrintT "expected %d mod 10 = 0 but found %d" '(Id, Id `Mod` 10)) (Mod Id 10 == 0)])

type Luhnop' (n :: Nat) = Guard (PrintT "incorrect number of digits found %d but expected %d in [%s]" '(Len, n, ShowP Id)) (Len == n) >> (Do '[Reverse, ZipWith ((Fst * Snd) >> If (Id >= 10) (Id - 9) Id) (Cycle n [1, 2]) Id, Sum] >> Guard (PrintT "expected %d mod 10 = 0 but found %d" '(Id, Id `Mod` 10)) (Mod Id 10 == 0))

ssn

type Ssnip = Map' (ReadP Int Id) (Rescan "^(\\d{3})-(\\d{2})-(\\d{4})$" >> (OneP >> Snd))

ip type for reading in a ssn

type Ssnop = BoolsQuick (PrintT "number for group %d invalid: found %d" Id) '[Between 1 899 Id && (Id /= 666), Between 1 99 Id, Between 1 9999 Id]

op type for validating a ssn

type Ssnfmt = PrintL 3 "%03d-%02d-%04d" Id

fmt type for formatting the ssn compatible with Ssnip

ipv4

type Ip4ip = Map' (ReadP Int Id) (Resplit "\\.")

ip type for reading in an ip4 address

type Ip4ip' = Map' (ReadP Int Id) (Rescan Ip4RE >> (OneP >> Snd))

ip type for reading in an ip4 address using a regular expression

type Ip4op = GuardsN (PrintT "octet %d out of range 0-255 found %d" Id) 4 (0 <..> 255) >> True

op type for validating an ip4 address using a guard

type Ip4op' = BoolsN (PrintT "octet %d out of range 0-255 found %d" Id) 4 (0 <..> 255)

op type for validating an ip4 address using a predicate

type Ip4fmt = PrintL 4 "%03d.%03d.%03d.%03d" Id

fmt type for formatting an ip4 address

type OctetRE = "(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])"

regular expression for an octet

type Ip4RE = "^(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})$"

regular expression for an ip4 address

type Ip4StrictRE = "^" <%> (IntersperseT "\\." (RepeatT 4 OctetRE) <%> "$")

regular expression for an ip4 address

ipv6

type Ip6ip = Resplit ":" >> (Map (If (Id == "") "0" Id) >> (Map (ReadBase Int 16) >> PadL 8 0 Id))

ip type for reading in an ip6 address

type Ip6op = Msg "count is bad:" (Len == 8) && Msg "out of bounds:" (All (0 <..> 65535))

op type for validating an ip6 address using predicates

type Ip6fmt = PrintL 8 "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x" Id

fmt type for formatting an ip6 address

isbn10

type Isbn10ip = Resplit "-" >> (Concat >> (Just Unsnoc >> (Map (ReadP Int (Singleton Id)) *** If (Singleton Id ==~ "X") 10 (ReadP Int (Singleton Id)))))

type Isbn10op = GuardSimple ((Fst >> All (0 <..> 9)) && Between 0 10 Snd) >> (ZipWith (Fst * Snd) ((1 ... 10) >> Reverse) (Fst +: Snd) >> (Sum >> GuardBool "mod 0 oops" ((Id `Mod` 11) == 0)))

type Isbn10fmt = (ConcatMap (ShowP Id) Id *** If (Id == 10) "X" (ShowP Id)) >> (Fst <> ("-" <> Snd))

isbn13

type Isbn13ip = Resplit "-" >> (Concat >> Map (ReadP Int (Singleton Id)))

type Isbn13op = ZipWith (Fst * Snd) (Cycle 13 [1, 3] >> Reverse) Id >> (Sum >> ('(Id, Id `Mod` 10) >> GuardBool (PrintT "sum=%d mod 10=%d" Id) (Snd == 0)))

type Isbn13fmt = Just Unsnoc >> (ConcatMap (ShowP Id) Fst <> ("-" <> ShowP Snd))