Safe Haskell	None

Text.Matchers

Synopsis

Documentation

data Matcher Source

Constructors

Matcher
Fields shortDesc :: Text Short description of this matcher, e.g. `PCRE` or `Exact`. matchDesc :: Text Description of a successful match, e.g. `Matches the PCRE pattern abc`, or `a valid date with optional time`. match :: Text -> Bool Function to carry out the match

data CaseSensitive Source

Constructors

Sensitive
Insensitive

Instances

Eq CaseSensitive
Ord CaseSensitive
Show CaseSensitive

pcre Source

Arguments

:: CaseSensitive
-> Text	Pattern
-> Either Text Matcher	The Matcher if the pattern is good; if the pattern is bad, returns an error message.

Uses the PCRE regular expression engine. Currently the pcre-light package is used, as it has a simpler interface than the regex-pcre-builtin. It should work correctly with Unicode.

within Source

Arguments

:: CaseSensitive
-> Text	The pattern
-> Matcher

Matcher that succeeds if the pattern text is found anywhere within the subject.

exact :: CaseSensitive -> Text -> Matcher Source

Matcher that succeeds if the pattern text exactly matches the subject (with case sensitivity as appropriate.)

data CompUTC Source

Constructors

UAfter
UOnOrAfter
UExactly
UBefore
UOnOrBefore

Instances

Eq CompUTC
Ord CompUTC
Show CompUTC

descUTC :: CompUTC -> UTCTime -> String Source

compUTCtoCmp :: Ord a => CompUTC -> a -> a -> Bool Source

date Source

Arguments

:: Maybe (CompUTC, UTCTime)	If Nothing, any valid date and time will succeed as a match; the matcher will return False if the subject is not a valid date. If Just, the subject must be a valid date and must fit within the range indicated.
-> Matcher

Matcher that succeeds if the subject represents a valid date with an optional time.