Text.XML.HXT.RelaxNG.DataTypeLibUtils

Description

exports helper functions for the integration of new datatype-libraries

Synopsis

errorMsgEqual :: DatatypeName -> String -> String -> String

errorMsgDataTypeNotAllowed :: String -> String -> [(String, String)] -> String -> String

errorMsgDataTypeNotAllowed0 :: String -> String -> String

errorMsgDataTypeNotAllowed2 :: String -> String -> String -> String -> String

errorMsgDataLibQName :: String -> String -> String -> String

errorMsgParam :: LocalName -> String -> String -> String

rng_length :: String

rng_maxLength :: String

rng_minLength :: String

rng_maxExclusive :: String

rng_minExclusive :: String

rng_maxInclusive :: String

rng_minInclusive :: String

module Text.XML.HXT.DOM.Util

module Text.XML.HXT.RelaxNG.Utils

module Text.XML.HXT.RelaxNG.DataTypes

type FunctionTable = [(String, String -> String -> Bool)]

stringValidFT :: FunctionTable -> DatatypeName -> Integer -> Integer -> ParamList -> CheckString

fctTableString :: FunctionTable

fctTableList :: FunctionTable

stringValid :: DatatypeName -> Integer -> Integer -> ParamList -> CheckString

numberValid :: DatatypeName -> Integer -> Integer -> ParamList -> CheckString

numParamValid :: (Integer -> Integer -> Bool) -> String -> String -> Bool

data CheckA a b

type CheckString = CheckA String String

type CheckInteger = CheckA Integer Integer

performCheck :: CheckA a b -> a -> Maybe String

ok :: CheckA a a

failure :: (a -> String) -> CheckA a b

assert :: (a -> Bool) -> (a -> String) -> CheckA a a

assertMaybe :: (a -> Maybe b) -> (a -> String) -> CheckA a b

checkWith :: (a -> b) -> CheckA b c -> CheckA a a

Documentation

errorMsgEqual :: DatatypeName -> String -> String -> String

errorMsgDataTypeNotAllowed :: String -> String -> [(String, String)] -> String -> String

errorMsgDataTypeNotAllowed0 :: String -> String -> String

errorMsgDataTypeNotAllowed2 :: String -> String -> String -> String -> String

errorMsgDataLibQName :: String -> String -> String -> String

errorMsgParam :: LocalName -> String -> String -> String

Error Message for the equality test of two datatype values

1.parameter : datatype
2.parameter : datatype value
3.parameter : datatype value

example:

 errorMsgEqual "Int" "21" "42" -> "Datatype Int with value = 21 expected, but value = 42 found"

rng_length :: String

rng_maxLength :: String

rng_minLength :: String

rng_maxExclusive :: String

rng_minExclusive :: String

rng_maxInclusive :: String

rng_minInclusive :: String

module Text.XML.HXT.DOM.Util

module Text.XML.HXT.RelaxNG.Utils

module Text.XML.HXT.RelaxNG.DataTypes

type FunctionTable = [(String, String -> String -> Bool)]

Function table type

stringValidFT :: FunctionTable -> DatatypeName -> Integer -> Integer -> ParamList -> CheckString

fctTableString :: FunctionTable

Function table for string tests, XML document value is first operand, schema value second

fctTableList :: FunctionTable

Function table for list tests, XML document value is first operand, schema value second

stringValid :: DatatypeName -> Integer -> Integer -> ParamList -> CheckString

Tests whether a "string" datatype value is between the lower and upper bound of the datatype and matches all parameters.

All tests are performed on the string value.

1.parameter : datatype
2.parameter : lower bound of the datatype range
3.parameter : upper bound of the datatype range (-1 = no upper bound)
4.parameter : list of parameters
5.parameter : datatype value to be checked
return : Just "Errormessage" in case of an error, else Nothing

numberValid :: DatatypeName -> Integer -> Integer -> ParamList -> CheckString

Tests whether a "numeric" datatype value is between the lower and upper bound of the datatype and matches all parameters.

First, the string value is parsed into a numeric representation. If no error occur, all following tests are performed on the numeric value.

1.parameter : datatype
2.parameter : lower bound of the datatype range
3.parameter : upper bound of the datatype range (-1 = no upper bound)
4.parameter : list of parameters
5.parameter : datatype value to be checked
return : Just "Errormessage" in case of an error, else Nothing

numParamValid :: (Integer -> Integer -> Bool) -> String -> String -> Bool

tests whether a string value matches a numeric param

valid example:

 <data type="CHAR"> <param name="maxLength">5</param> </data>

invalid example:

 <data type="CHAR"> <param name="minLength">foo</param> </data>

data CheckA a b

Instances

Arrow CheckA

ArrowZero CheckA

ArrowPlus CheckA

type CheckString = CheckA String String

type CheckInteger = CheckA Integer Integer

performCheck :: CheckA a b -> a -> Maybe String

run a check and deliver Just an error message or Nothing

ok :: CheckA a a

every thing is fine

failure :: (a -> String) -> CheckA a b

always failure

assert :: (a -> Bool) -> (a -> String) -> CheckA a a

perform a simple check with a predicate p, when the predicate holds, assert acts as identity, else an error message is generated

assertMaybe :: (a -> Maybe b) -> (a -> String) -> CheckA a b

perform a simple check with a Maybe function, Nothing indicates error

checkWith :: (a -> b) -> CheckA b c -> CheckA a a

perform a check, but convert the value before checking

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