Change to --file-scope behavior.

Previously a Div with an identifier derived from the filename
would be added around the contents of each file.  This caused
problems for "chunking" files into chapters, e.g. in EPUB.

We no longer add the surrounding Div. This cooperates better with
chunking. Note, however, that if you have relied on the old
behavior to link to the beginning of the contents of a file using
its filename as identifier, that will no longer work.

Closes #8741.

MANUAL.txt

@@ -581,10 +581,6 @@ header when requesting a document from a URL:
     identifier `foo` in `subdir/file1.txt` will have its
     identifier changed to `subdir__file1.txt__foo`.
 
-    In addition, a Div with an identifier based on the filename
-    will be added around the file's content, so that internal
-    links to the filename will point to this Div's identifier.
-
 `-F` *PROGRAM*, `--filter=`*PROGRAM*
 
 :   Specify an executable to be used as a filter transforming the

src/Text/Pandoc/App/Input.hs

@@ -122,18 +122,13 @@ inputToLazyByteString (_, (bs,_)) = BL.fromStrict bs
 
 adjustLinksAndIds :: Extensions -> Text -> [Text] -> Pandoc -> Pandoc
 adjustLinksAndIds exts thisfile allfiles
-  | length allfiles > 1 = addDiv . walk fixInline . walk fixBlock
+  | length allfiles > 1 = walk fixInline . walk fixBlock
   | otherwise           = id
  where
   toIdent :: Text -> Text
   toIdent = textToIdentifier exts . T.intercalate "__" .
             T.split (\c -> c == '/' || c == '\\')
 
-  addDiv :: Pandoc -> Pandoc
-  addDiv (Pandoc m bs)
-    | T.null thisfile = Pandoc m bs
-    | otherwise = Pandoc m [Div (toIdent thisfile,[],[]) bs]
-
   fixBlock :: Block -> Block
   fixBlock (CodeBlock attr t) = CodeBlock (fixAttrs attr) t
   fixBlock (Header lev attr ils) = Header lev (fixAttrs attr) ils

test/command/6384.md

@@ -1,16 +1,12 @@
 ```
 % pandoc --wrap=preserve --file-scope command/file1.txt command/file2.txt
 ^D
-<div id="command__file1.txt">
 <h1 id="command__file1.txt__zed">Zed</h1>
 <p><a href="bar">foo</a>
 and <a href="#command__file1.txt__zed">Zed</a>
 and <a href="#command__file2.txt__zed">other Zed</a>
 and <a href="#command__file2.txt">other file</a>
 and <a href="c.md#zed">foreign Zed</a></p>
-</div>
-<div id="command__file2.txt">
 <h2 id="command__file2.txt__zed">Zed</h2>
 <p><a href="baz">foo</a></p>
-</div>
 ```