Man writer: convert math to unicode when possible.

(As in other writers.)

src/Text/Pandoc/Writers/Man.hs

@@ -32,6 +32,7 @@ module Text.Pandoc.Writers.Man ( writeMan) where
 import Text.Pandoc.Definition
 import Text.Pandoc.Templates
 import Text.Pandoc.Shared
+import Text.Pandoc.Readers.TeXMath
 import Text.Printf ( printf )
 import Data.List ( isPrefixOf, intersperse, intercalate )
 import Text.PrettyPrint.HughesPJ hiding ( Str )
@@ -301,9 +302,9 @@ inlineToMan _ Ellipses = return $ text "\\&..."
 inlineToMan _ (Code str) =
   return $ text $ "\\f[B]" ++ escapeCode str ++ "\\f[]"
 inlineToMan _ (Str str) = return $ text $ escapeString str
-inlineToMan opts (Math InlineMath str) = inlineToMan opts (Code str)
+inlineToMan opts (Math InlineMath str) = inlineListToMan opts $ readTeXMath str
 inlineToMan opts (Math DisplayMath str) = do
-  contents <- inlineToMan opts (Code str)
+  contents <- inlineListToMan opts $ readTeXMath str
   return $ text ".RS" $$ contents $$ text ".RE"
 inlineToMan _ (TeX _) = return empty
 inlineToMan _ (HtmlInline _) = return empty

tests/writer.man

@@ -544,23 +544,22 @@ Ellipses\&...and\&...and\&....
 .SH LaTeX
 .IP \[bu] 2
 .IP \[bu] 2
-\f[B]2+2=4\f[]
+2 + 2 = 4
 .IP \[bu] 2
-\f[B]x\ \\in\ y\f[]
+\f[I]x\f[] ∈ \f[I]y\f[]
 .IP \[bu] 2
-\f[B]\\alpha\ \\wedge\ \\omega\f[]
+α ∧ ω
 .IP \[bu] 2
-\f[B]223\f[]
+223
 .IP \[bu] 2
-\f[B]p\f[]-Tree
+\f[I]p\f[]-Tree
 .IP \[bu] 2
 Here's some display math:
 .RS
-\f[B]\\frac{d}{dx}f(x)=\\lim_{h\\to\ 0}\\frac{f(x+h)-f(x)}{h}\f[]
+$\\frac{d}{dx}f(x)=\\lim_{h\\to 0}\\frac{f(x+h)-f(x)}{h}$
 .RE
 .IP \[bu] 2
-Here's one that has a line break in it:
-\f[B]\\alpha\ +\ \\omega\ \\times\ x^2\f[].
+Here's one that has a line break in it: α + ω × \f[I]x\f[]^2^.
 .PP
 These shouldn't be math:
 .IP \[bu] 2