Added Text.Pandoc.Logging (exported module).

This now contains the Verbosity definition previously
in Options, as well as a new LogMessage datatype that
will eventually be used instead of raw strings for
warnings.

This will enable us, among other things, to provide
machine-readable warnings if desired.

See #3392.

6 files changed, 8 insertions, 2 deletions

diff --git a/src/Text/Pandoc/Readers/EPUB.hs b/src/Text/Pandoc/Readers/EPUB.hs
index 851d4771f..49a035c37 100644
--- a/src/Text/Pandoc/Readers/EPUB.hs
+++ b/src/Text/Pandoc/Readers/EPUB.hs
@@ -12,7 +12,8 @@ import Text.XML.Light
 import Text.Pandoc.Definition hiding (Attr)
 import Text.Pandoc.Readers.HTML (readHtml)
 import Text.Pandoc.Walk (walk, query)
-import Text.Pandoc.Options ( ReaderOptions(..), Verbosity(..))
+import Text.Pandoc.Options ( ReaderOptions(..))
+import Text.Pandoc.Logging (Verbosity(..))
 import Text.Pandoc.Extensions (enableExtension, Extension(Ext_raw_html))
 import Text.Pandoc.Shared (escapeURI, collapseFilePath, addMetaField)
 import Network.URI (unEscapeString)
diff --git a/src/Text/Pandoc/Readers/HTML.hs b/src/Text/Pandoc/Readers/HTML.hs
index a464847fb..c452d2acf 100644
--- a/src/Text/Pandoc/Readers/HTML.hs
+++ b/src/Text/Pandoc/Readers/HTML.hs
@@ -46,8 +46,9 @@ import Text.Pandoc.Builder (Blocks, Inlines, trimInlines, HasMeta(..))
 import Text.Pandoc.Shared ( extractSpaces, renderTags', addMetaField
                           , escapeURI, safeRead )
 import Text.Pandoc.Options (ReaderOptions(readerExtensions), extensionEnabled,
-                               Verbosity(..), Extension (Ext_epub_html_exts,
+                               Extension (Ext_epub_html_exts,
                                Ext_raw_html, Ext_native_divs, Ext_native_spans))
+import Text.Pandoc.Logging (Verbosity(..))
 import Text.Pandoc.Parsing hiding ((<|>))
 import Text.Pandoc.Walk
 import qualified Data.Map as M
diff --git a/src/Text/Pandoc/Readers/Markdown.hs b/src/Text/Pandoc/Readers/Markdown.hs
index 0c10889d4..e35b70240 100644
--- a/src/Text/Pandoc/Readers/Markdown.hs
+++ b/src/Text/Pandoc/Readers/Markdown.hs
@@ -51,6 +51,7 @@ import qualified Text.Pandoc.UTF8 as UTF8
 import qualified Data.Vector as V
 import Text.Pandoc.Builder (Inlines, Blocks, trimInlines)
 import Text.Pandoc.Options
+import Text.Pandoc.Logging (Verbosity(..))
 import Text.Pandoc.Shared
 import Text.Pandoc.Pretty (charWidth)
 import Text.Pandoc.XML (fromEntities)
diff --git a/src/Text/Pandoc/Readers/MediaWiki.hs b/src/Text/Pandoc/Readers/MediaWiki.hs
index b81d0f3e4..e70509bd1 100644
--- a/src/Text/Pandoc/Readers/MediaWiki.hs
+++ b/src/Text/Pandoc/Readers/MediaWiki.hs
@@ -41,6 +41,7 @@ import qualified Text.Pandoc.Builder as B
 import Text.Pandoc.Builder (Inlines, Blocks, trimInlines)
 import Data.Monoid ((<>))
 import Text.Pandoc.Options
+import Text.Pandoc.Logging (Verbosity(..))
 import Text.Pandoc.Readers.HTML ( htmlTag, isBlockTag, isCommentTag )
 import Text.Pandoc.XML ( fromEntities )
 import Text.Pandoc.Parsing hiding ( nested )
diff --git a/src/Text/Pandoc/Readers/TWiki.hs b/src/Text/Pandoc/Readers/TWiki.hs
index 1a827bcd9..af9b38895 100644
--- a/src/Text/Pandoc/Readers/TWiki.hs
+++ b/src/Text/Pandoc/Readers/TWiki.hs
@@ -35,6 +35,7 @@ module Text.Pandoc.Readers.TWiki ( readTWiki
 import Text.Pandoc.Definition
 import qualified Text.Pandoc.Builder as B
 import Text.Pandoc.Options
+import Text.Pandoc.Logging (Verbosity(..))
 import Text.Pandoc.Parsing hiding (enclosed, macro, nested)
 import Text.Pandoc.Readers.HTML (htmlTag, isCommentTag)
 import Control.Monad
diff --git a/src/Text/Pandoc/Readers/Textile.hs b/src/Text/Pandoc/Readers/Textile.hs
index 07fb65b20..f404079ec 100644
--- a/src/Text/Pandoc/Readers/Textile.hs
+++ b/src/Text/Pandoc/Readers/Textile.hs
@@ -56,6 +56,7 @@ import Text.Pandoc.Definition
 import Text.Pandoc.Builder (Inlines, Blocks, trimInlines)
 import qualified Text.Pandoc.Builder as B
 import Text.Pandoc.Options
+import Text.Pandoc.Logging (Verbosity(..))
 import Text.Pandoc.Parsing
 import Text.Pandoc.Readers.HTML ( htmlTag, isBlockTag, isInlineTag )
 import Text.Pandoc.Shared (trim)