gnu: ghc-pandoc: Update to 2.7.3.

* gnu/packages/haskell-xyz.scm (ghc-pandoc): Update to 2.7.3.
[source]: Add patches to fix tests.
[arguments]: Remove '#:phases'.
[inputs]: Remove 'ghc-deepseq-generics', 'ghc-old-locale', and
'ghc-yaml'; add 'ghc-hslua-module-system', 'ghc-hsyaml', 'ghc-ipynb',
and 'ghc-unicode-transforms'.
[native-inputs]: Add 'ghc-tasty-lua'.
* gnu/packages/patches/ghc-pandoc-fix-html-tests.patch: New file.
* gnu/packages/patches/ghc-pandoc-fix-latex-test.patch: New file.
* gnu/local.mk: Add them.

4 files changed, 134 insertions, 19 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index fd18592582..8e937c8734 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -882,6 +882,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/ghc-dont-pass-linker-flags-via-response-files.patch	\
   %D%/packages/patches/ghc-hpack-fix-tests.patch		\
   %D%/packages/patches/ghc-monad-par-fix-tests.patch		\
+  %D%/packages/patches/ghc-pandoc-fix-html-tests.patch		\
+  %D%/packages/patches/ghc-pandoc-fix-latex-test.patch		\
   %D%/packages/patches/ghostscript-no-header-id.patch		\
   %D%/packages/patches/ghostscript-no-header-uuid.patch		\
   %D%/packages/patches/ghostscript-no-header-creationdate.patch \
diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm
index b35452c60c..aec3950e5d 100644
--- a/gnu/packages/haskell-xyz.scm
+++ b/gnu/packages/haskell-xyz.scm
@@ -7638,30 +7638,18 @@ command line options in Haskell.")
 (define-public ghc-pandoc
   (package
     (name "ghc-pandoc")
-    (version "2.2.1")
+    (version "2.7.3")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://hackage.haskell.org/package/pandoc/pandoc-"
                            version ".tar.gz"))
+       (patches (search-patches "ghc-pandoc-fix-html-tests.patch"
+                                "ghc-pandoc-fix-latex-test.patch"))
        (sha256
         (base32
-         "1dqin92w513l7whg5wdgrngnxsj5mb8gppfvn7kjgyv2pdgpy0zy"))))
+         "0dpjrr40h54cljzhvixyym07z792a9izg6b9dmqpjlgcg4rj0xx8"))))
     (build-system haskell-build-system)
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (add-before 'configure 'update-constraints
-           (lambda _
-             (substitute* "pandoc.cabal"
-               (("tasty >= 0\\.11 && < 1\\.1")
-                "tasty >= 0.11 && < 1.1.1"))))
-         (add-before 'configure 'patch-tests
-           (lambda _
-             ;; These tests fail benignly and have been adjusted upstream:
-             ;; <https://github.com/commercialhaskell/stackage/issues/3719>.
-             (substitute* "test/Tests/Old.hs"
-               (("lhsWriterTests \"html\"") "[]")))))))
     (inputs
      `(("ghc-aeson" ,ghc-aeson)
        ("ghc-aeson-pretty" ,ghc-aeson-pretty)
@@ -7670,22 +7658,23 @@ command line options in Haskell.")
        ("ghc-blaze-markup" ,ghc-blaze-markup)
        ("ghc-cmark-gfm" ,ghc-cmark-gfm)
        ("ghc-data-default" ,ghc-data-default)
-       ("ghc-deepseq-generics" ,ghc-deepseq-generics)
        ("ghc-diff" ,ghc-diff)
        ("ghc-doctemplates" ,ghc-doctemplates)
        ("ghc-executable-path" ,ghc-executable-path)
        ("ghc-glob" ,ghc-glob)
        ("ghc-haddock-library" ,ghc-haddock-library)
        ("ghc-hslua" ,ghc-hslua)
+       ("ghc-hslua-module-system" ,ghc-hslua-module-system)
        ("ghc-hslua-module-text" ,ghc-hslua-module-text)
+       ("ghc-hsyaml" ,ghc-hsyaml)
        ("ghc-http" ,ghc-http)
        ("ghc-http-client" ,ghc-http-client)
        ("ghc-http-client-tls" ,ghc-http-client-tls)
        ("ghc-http-types" ,ghc-http-types)
+       ("ghc-ipynb" ,ghc-ipynb)
        ("ghc-juicypixels" ,ghc-juicypixels)
        ("ghc-network" ,ghc-network)
        ("ghc-network-uri" ,ghc-network-uri)
-       ("ghc-old-locale" ,ghc-old-locale)
        ("ghc-pandoc-types" ,ghc-pandoc-types)
        ("ghc-random" ,ghc-random)
        ("ghc-scientific" ,ghc-scientific)
@@ -7696,16 +7685,17 @@ command line options in Haskell.")
        ("ghc-tagsoup" ,ghc-tagsoup)
        ("ghc-temporary" ,ghc-temporary)
        ("ghc-texmath" ,ghc-texmath)
+       ("ghc-unicode-transforms" ,ghc-unicode-transforms)
        ("ghc-unordered-containers" ,ghc-unordered-containers)
        ("ghc-vector" ,ghc-vector)
        ("ghc-xml" ,ghc-xml)
-       ("ghc-yaml" ,ghc-yaml)
        ("ghc-zip-archive" ,ghc-zip-archive)
        ("ghc-zlib" ,ghc-zlib)))
     (native-inputs
      `(("ghc-tasty" ,ghc-tasty)
        ("ghc-tasty-golden" ,ghc-tasty-golden)
        ("ghc-tasty-hunit" ,ghc-tasty-hunit)
+       ("ghc-tasty-lua" ,ghc-tasty-lua)
        ("ghc-tasty-quickcheck" ,ghc-tasty-quickcheck)
        ("ghc-quickcheck" ,ghc-quickcheck)
        ("ghc-hunit" ,ghc-hunit)))
diff --git a/gnu/packages/patches/ghc-pandoc-fix-html-tests.patch b/gnu/packages/patches/ghc-pandoc-fix-html-tests.patch
new file mode 100644
index 0000000000..b624ff9e9e
--- /dev/null
+++ b/gnu/packages/patches/ghc-pandoc-fix-html-tests.patch
@@ -0,0 +1,92 @@
+This patch is taken from upstream.  It fixes two HTML tests that are broken
+due to using a Skylighting version greater than or equal to 0.8.2.
+
+From 968d2046a3cb6db661673be580660ac402753c34 Mon Sep 17 00:00:00 2001
+From: John MacFarlane <jgm@berkeley.edu>
+Date: Sun, 14 Jul 2019 10:48:14 -0700
+Subject: [PATCH] Update test for new skylighting.
+
+---
+ test/lhs-test.html     | 13 ++++++-------
+ test/lhs-test.html+lhs | 13 ++++++-------
+ 2 files changed, 12 insertions(+), 14 deletions(-)
+
+diff --git a/test/lhs-test.html b/test/lhs-test.html
+index 6685555f4..446dd3d95 100644
+--- a/test/lhs-test.html
++++ b/test/lhs-test.html
+@@ -12,19 +12,18 @@
+       div.column{display: inline-block; vertical-align: top; width: 50%;}
+   </style>
+   <style>
+-code.sourceCode > span { display: inline-block; line-height: 1.25; }
++pre > code.sourceCode { white-space: pre; position: relative; }
++pre > code.sourceCode > span { display: inline-block; line-height: 1.25; }
++pre > code.sourceCode > span:empty { height: 1.2em; }
+ code.sourceCode > span { color: inherit; text-decoration: inherit; }
+-code.sourceCode > span:empty { height: 1.2em; }
+-.sourceCode { overflow: visible; }
+-code.sourceCode { white-space: pre; position: relative; }
+ div.sourceCode { margin: 1em 0; }
+ pre.sourceCode { margin: 0; }
+ @media screen {
+ div.sourceCode { overflow: auto; }
+ }
+ @media print {
+-code.sourceCode { white-space: pre-wrap; }
+-code.sourceCode > span { text-indent: -5em; padding-left: 5em; }
++pre > code.sourceCode { white-space: pre-wrap; }
++pre > code.sourceCode > span { text-indent: -5em; padding-left: 5em; }
+ }
+ pre.numberSource code
+   { counter-reset: source-line 0; }
+@@ -44,7 +43,7 @@ pre.numberSource { margin-left: 3em; border-left: 1px solid #aaaaaa;  padding-le
+ div.sourceCode
+   {   }
+ @media screen {
+-code.sourceCode > span > a:first-child::before { text-decoration: underline; }
++pre > code.sourceCode > span > a:first-child::before { text-decoration: underline; }
+ }
+ code span.al { color: #ff0000; font-weight: bold; } /* Alert */
+ code span.an { color: #60a0b0; font-weight: bold; font-style: italic; } /* Annotation */
+diff --git a/test/lhs-test.html+lhs b/test/lhs-test.html+lhs
+index e57dfc105..a5cdb0245 100644
+--- a/test/lhs-test.html+lhs
++++ b/test/lhs-test.html+lhs
+@@ -12,19 +12,18 @@
+       div.column{display: inline-block; vertical-align: top; width: 50%;}
+   </style>
+   <style>
+-code.sourceCode > span { display: inline-block; line-height: 1.25; }
++pre > code.sourceCode { white-space: pre; position: relative; }
++pre > code.sourceCode > span { display: inline-block; line-height: 1.25; }
++pre > code.sourceCode > span:empty { height: 1.2em; }
+ code.sourceCode > span { color: inherit; text-decoration: inherit; }
+-code.sourceCode > span:empty { height: 1.2em; }
+-.sourceCode { overflow: visible; }
+-code.sourceCode { white-space: pre; position: relative; }
+ div.sourceCode { margin: 1em 0; }
+ pre.sourceCode { margin: 0; }
+ @media screen {
+ div.sourceCode { overflow: auto; }
+ }
+ @media print {
+-code.sourceCode { white-space: pre-wrap; }
+-code.sourceCode > span { text-indent: -5em; padding-left: 5em; }
++pre > code.sourceCode { white-space: pre-wrap; }
++pre > code.sourceCode > span { text-indent: -5em; padding-left: 5em; }
+ }
+ pre.numberSource code
+   { counter-reset: source-line 0; }
+@@ -44,7 +43,7 @@ pre.numberSource { margin-left: 3em; border-left: 1px solid #aaaaaa;  padding-le
+ div.sourceCode
+   {   }
+ @media screen {
+-code.sourceCode > span > a:first-child::before { text-decoration: underline; }
++pre > code.sourceCode > span > a:first-child::before { text-decoration: underline; }
+ }
+ code span.al { color: #ff0000; font-weight: bold; } /* Alert */
+ code span.an { color: #60a0b0; font-weight: bold; font-style: italic; } /* Annotation */
+-- 
+2.23.0
+
diff --git a/gnu/packages/patches/ghc-pandoc-fix-latex-test.patch b/gnu/packages/patches/ghc-pandoc-fix-latex-test.patch
new file mode 100644
index 0000000000..b38476882d
--- /dev/null
+++ b/gnu/packages/patches/ghc-pandoc-fix-latex-test.patch
@@ -0,0 +1,31 @@
+This patch is taken from upstream.  It fixes a LaTeX test that is broken due
+to using a Skylighting version greater than or equal to 0.8.1.1.
+
+From 2cd1c7b30f200d18f1f1bdef1671369e1ad303ed Mon Sep 17 00:00:00 2001
+From: John MacFarlane <jgm@berkeley.edu>
+Date: Thu, 13 Jun 2019 19:33:52 -0700
+Subject: [PATCH] Update test for skylighting 0.8.1.1.
+
+---
+ test/lhs-test.latex | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/test/lhs-test.latex b/test/lhs-test.latex
+index 0442db5ca..a456995a3 100644
+--- a/test/lhs-test.latex
++++ b/test/lhs-test.latex
+@@ -94,9 +94,9 @@ return a single value:
+ 
+ \begin{Shaded}
+ \begin{Highlighting}[]
+-\OtherTok{unsplit ::}\NormalTok{ (}\DataTypeTok{Arrow}\NormalTok{ a) }\OtherTok{=>}\NormalTok{ (b }\OtherTok{->}\NormalTok{ c }\OtherTok{->}\NormalTok{ d) }\OtherTok{->}\NormalTok{ a (b, c) d}
++\OtherTok{unsplit ::}\NormalTok{ (}\DataTypeTok{Arrow}\NormalTok{ a) }\OtherTok{=>}\NormalTok{ (b }\OtherTok{{-}>}\NormalTok{ c }\OtherTok{{-}>}\NormalTok{ d) }\OtherTok{{-}>}\NormalTok{ a (b, c) d}
+ \NormalTok{unsplit }\OtherTok{=}\NormalTok{ arr }\OperatorTok{.} \FunctionTok{uncurry}
+-          \CommentTok{-- arr (\textbackslash{}op (x,y) -> x `op` y)}
++          \CommentTok{{-}{-} arr (\textbackslash{}op (x,y) {-}> x \textasciigrave{}op\textasciigrave{} y)}
+ \end{Highlighting}
+ \end{Shaded}
+ 
+-- 
+2.23.0
+