{-# LANGUAGE DeriveDataTypeable #-} {-# LANGUAGE DeriveGeneric #-} {-# LANGUAGE OverloadedStrings #-} {- Copyright (C) 2016-17 John MacFarlane This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -} {- | Module : Text.Pandoc.Logging Copyright : Copyright (C) 2006-2017 John MacFarlane License : GNU GPL, version 2 or above Maintainer : John MacFarlane Stability : alpha Portability : portable This module provides data types and functions for warnings and info messages. -} module Text.Pandoc.Logging ( Verbosity(..) , LogMessage(..) , encodeLogMessages , showLogMessage , messageVerbosity ) where import Control.Monad (mzero) import Data.Aeson import Data.Aeson.Encode.Pretty (Config (..), defConfig, encodePretty', keyOrder) import qualified Data.ByteString.Lazy as BL import Data.Data (Data, toConstr) import Data.Generics (Typeable) import qualified Data.Text as Text import GHC.Generics (Generic) import Text.Pandoc.Definition import Text.Parsec.Pos -- | Verbosity level. data Verbosity = ERROR | WARNING | INFO | DEBUG deriving (Show, Read, Eq, Data, Enum, Ord, Bounded, Typeable, Generic) 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 | CouldNotParseYamlMetadata String SourcePos | DuplicateLinkReference String SourcePos | DuplicateNoteReference String SourcePos | DuplicateIdentifier String SourcePos | ReferenceNotFound String SourcePos | CircularReference String SourcePos | ParsingUnescaped String SourcePos | CouldNotLoadIncludeFile String SourcePos | ParsingTrace String SourcePos | InlineNotRendered Inline | BlockNotRendered Block | DocxParserWarning String | CouldNotFetchResource String String | CouldNotDetermineImageSize String String | CouldNotConvertImage String String | CouldNotDetermineMimeType String | CouldNotConvertTeXMath String String | CouldNotParseCSS String | Fetching String | NoTitleElement String | NoLangSpecified | CouldNotHighlight String deriving (Show, Eq, Data, Ord, Typeable, Generic) instance ToJSON LogMessage where toJSON x = object $ "verbosity" .= toJSON (messageVerbosity x) : "type" .= toJSON (show $ toConstr x) : case x of SkippedContent s pos -> ["contents" .= Text.pack s, "source" .= Text.pack (sourceName pos), "line" .= sourceLine pos, "column" .= sourceColumn pos] CouldNotParseYamlMetadata s pos -> ["message" .= Text.pack s, "source" .= Text.pack (sourceName pos), "line" .= toJSON (sourceLine pos), "column" .= toJSON (sourceColumn pos)] DuplicateLinkReference s pos -> ["contents" .= Text.pack s, "source" .= Text.pack (sourceName pos), "line" .= toJSON (sourceLine pos), "column" .= toJSON (sourceColumn pos)] DuplicateNoteReference s pos -> ["contents" .= Text.pack s, "source" .= Text.pack (sourceName pos), "line" .= toJSON (sourceLine pos), "column" .= toJSON (sourceColumn pos)] DuplicateIdentifier s pos -> ["contents" .= Text.pack s, "source" .= Text.pack (sourceName pos), "line" .= toJSON (sourceLine pos), "column" .= toJSON (sourceColumn pos)] ReferenceNotFound s pos -> ["contents" .= Text.pack s, "source" .= Text.pack (sourceName pos), "line" .= toJSON (sourceLine pos), "column" .= toJSON (sourceColumn pos)] CircularReference s pos -> ["contents" .= Text.pack s, "source" .= Text.pack (sourceName pos), "line" .= toJSON (sourceLine pos), "column" .= toJSON (sourceColumn pos)] ParsingUnescaped s pos -> ["contents" .= Text.pack s, "source" .= Text.pack (sourceName pos), "line" .= toJSON (sourceLine pos), "column" .= toJSON (sourceColumn pos)] CouldNotLoadIncludeFile fp pos -> ["path" .= Text.pack fp, "source" .= Text.pack (sourceName pos), "line" .= toJSON (sourceLine pos), "column" .= toJSON (sourceColumn pos)] ParsingTrace s pos -> ["contents" .= Text.pack s, "source" .= Text.pack (sourceName pos), "line" .= sourceLine pos, "column" .= sourceColumn pos] InlineNotRendered il -> ["contents" .= toJSON il] BlockNotRendered bl -> ["contents" .= toJSON bl] DocxParserWarning s -> ["contents" .= Text.pack s] CouldNotFetchResource fp s -> ["path" .= Text.pack fp, "message" .= Text.pack s] CouldNotDetermineImageSize fp s -> ["path" .= Text.pack fp, "message" .= Text.pack s] CouldNotConvertImage fp s -> ["path" .= Text.pack fp, "message" .= Text.pack s] CouldNotDetermineMimeType fp -> ["path" .= Text.pack fp] CouldNotConvertTeXMath s msg -> ["contents" .= Text.pack s, "message" .= Text.pack msg] CouldNotParseCSS msg -> ["message" .= Text.pack msg] Fetching fp -> ["path" .= Text.pack fp] NoTitleElement fallback -> ["fallback" .= Text.pack fallback] NoLangSpecified -> [] CouldNotHighlight msg -> ["message" .= Text.pack msg] showPos :: SourcePos -> String showPos pos = sn ++ "line " ++ show (sourceLine pos) ++ " column " ++ show (sourceColumn pos) where sn = if sourceName pos == "source" || sourceName pos == "" then "" else sourceName pos ++ " " encodeLogMessages :: [LogMessage] -> BL.ByteString encodeLogMessages ms = encodePretty' defConfig{ confCompare = keyOrder [ "type", "verbosity", "contents", "message", "path", "source", "line", "column" ] } ms showLogMessage :: LogMessage -> String showLogMessage msg = case msg of SkippedContent s pos -> "Skipped '" ++ s ++ "' at " ++ showPos pos CouldNotParseYamlMetadata s pos -> "Could not parse YAML metadata at " ++ showPos pos ++ if null s then "" else (": " ++ s) DuplicateLinkReference s pos -> "Duplicate link reference '" ++ s ++ "' at " ++ showPos pos DuplicateNoteReference s pos -> "Duplicate note reference '" ++ s ++ "' at " ++ showPos pos DuplicateIdentifier s pos -> "Duplicate identifier '" ++ s ++ "' at " ++ showPos pos ReferenceNotFound s pos -> "Reference not found for '" ++ s ++ "' at " ++ showPos pos CircularReference s pos -> "Circular reference '" ++ s ++ "' at " ++ showPos pos ParsingUnescaped s pos -> "Parsing unescaped '" ++ s ++ "' at " ++ showPos pos CouldNotLoadIncludeFile fp pos -> "Could not load include file '" ++ fp ++ "' at " ++ showPos pos ParsingTrace s pos -> "Parsing trace at " ++ showPos pos ++ ": " ++ s InlineNotRendered il -> "Not rendering " ++ show il BlockNotRendered bl -> "Not rendering " ++ show bl DocxParserWarning s -> "Docx parser warning: " ++ s CouldNotFetchResource fp s -> "Could not fetch resource '" ++ fp ++ "'" ++ if null s then "" else (": " ++ s) CouldNotDetermineImageSize fp s -> "Could not determine image size for '" ++ fp ++ "'" ++ if null s then "" else (": " ++ s) CouldNotConvertImage fp s -> "Could not convert image '" ++ fp ++ "'" ++ if null s then "" else (": " ++ s) CouldNotDetermineMimeType fp -> "Could not determine mime type for '" ++ fp ++ "'" CouldNotConvertTeXMath s m -> "Could not convert TeX math '" ++ s ++ "', rendering as TeX" ++ if null m then "" else (':':'\n':m) CouldNotParseCSS m -> "Could not parse CSS" ++ if null m then "" else (':':'\n':m) Fetching fp -> "Fetching " ++ fp ++ "..." NoTitleElement fallback -> "This document format requires a nonempty element.\n" ++ "Please specify either 'title' or 'pagetitle' in the metadata.\n" ++ "Falling back to '" ++ fallback ++ "'" NoLangSpecified -> "No value for 'lang' was specified in the metadata.\n" ++ "It is recommended that lang be specified for this format." CouldNotHighlight m -> "Could not highlight code block:\n" ++ m messageVerbosity:: LogMessage -> Verbosity messageVerbosity msg = case msg of SkippedContent{} -> WARNING CouldNotParseYamlMetadata{} -> WARNING DuplicateLinkReference{} -> WARNING DuplicateNoteReference{} -> WARNING DuplicateIdentifier{} -> WARNING ReferenceNotFound{} -> WARNING CircularReference{} -> WARNING CouldNotLoadIncludeFile{} -> WARNING ParsingUnescaped{} -> INFO ParsingTrace{} -> DEBUG InlineNotRendered{} -> INFO BlockNotRendered{} -> INFO DocxParserWarning{} -> WARNING CouldNotFetchResource{} -> WARNING CouldNotDetermineImageSize{} -> WARNING CouldNotConvertImage{} -> WARNING CouldNotDetermineMimeType{} -> WARNING CouldNotConvertTeXMath{} -> WARNING CouldNotParseCSS{} -> WARNING Fetching{} -> INFO NoTitleElement{} -> WARNING NoLangSpecified -> INFO CouldNotHighlight{} -> WARNING