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Diffstat (limited to 'src/Text/Pandoc/Logging.hs')
| -rw-r--r-- | src/Text/Pandoc/Logging.hs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/Text/Pandoc/Logging.hs b/src/Text/Pandoc/Logging.hs index 2cca4b7d3..bf7f33d29 100644 --- a/src/Text/Pandoc/Logging.hs +++ b/src/Text/Pandoc/Logging.hs @@ -39,6 +39,7 @@ module Text.Pandoc.Logging ( , messageVerbosity ) where +import Control.Monad (mzero) import Data.Aeson import Data.Aeson.Encode.Pretty (Config (..), defConfig, encodePretty', keyOrder) @@ -56,6 +57,15 @@ data Verbosity = ERROR | WARNING | INFO | DEBUG instance ToJSON Verbosity where toJSON x = toJSON (show x) +instance FromJSON Verbosity where + parseJSON (String t) = + case t of + "ERROR" -> return ERROR + "WARNING" -> return WARNING + "INFO" -> return INFO + "DEBUG" -> return DEBUG + _ -> mzero + parseJSON _ = mzero data LogMessage = SkippedContent String SourcePos |