Data.Yaml.Internal

Documentation

data ParseException

Constructors

NonScalarKey

UnknownAlias

Fields

• _anchorName :: AnchorName

UnexpectedEvent

Fields

• _received :: Maybe Event
• _expected :: Maybe Event

InvalidYaml (Maybe YamlException)

AesonException String

OtherParseException SomeException

NonStringKeyAlias AnchorName Value

CyclicIncludes

Instances

Show ParseException

Defined in Data.Yaml.Internal

Methods

showsPrec :: Int -> ParseException -> ShowS

show :: ParseException -> String

showList :: [ParseException] -> ShowS

Exception ParseException

Defined in Data.Yaml.Internal

Methods

toException :: ParseException -> SomeException

fromException :: SomeException -> Maybe ParseException

displayException :: ParseException -> String

prettyPrintParseException :: ParseException -> String

Alternative to show to display a ParseException on the screen. Instead of displaying the data constructors applied to their arguments, a more textual output is returned. For example, instead of printing:

InvalidYaml (Just (YamlParseException {yamlProblem = "did not find expected ',' or '}'", yamlContext = "while parsing a flow mapping", yamlProblemMark = YamlMark {yamlIndex = 42, yamlLine = 2, yamlColumn = 12}})))

It looks more pleasant to print:

YAML parse exception at line 2, column 12,
while parsing a flow mapping:
did not find expected ',' or '}'

Since 0.8.11

parse :: ConduitM Event o Parse Value

decodeHelper :: FromJSON a => ConduitM () Event Parse () -> IO (Either ParseException (Either String a))

decodeHelper_ :: FromJSON a => ConduitM () Event Parse () -> IO (Either ParseException a)

specialStrings :: HashSet Text

Strings which must be escaped so as not to be treated as non-string scalars.

isNumeric :: Text -> Bool

textToScientific :: Text -> Either String Scientific