Typst writer: escape hyphens when needed.

Closes #11334.

src/Text/Pandoc/Writers/Typst.hs

@@ -584,11 +584,13 @@ escapeTypst smart context t =
       | needsEscapeAtLineStart c || isOrderedListMarker t
         -> afterBreak "\\"
     _ -> mempty) <>
-  (literal (T.replace "//" "\\/\\/"
-    (if T.any needsEscape t
-        then T.concatMap escapeChar t
-        else t)))
+   literal (snd $ T.foldl' go ('\n', mempty) t)
   where
+    go (lastc, t') c
+      | needsEscape c = (c, t' <> escapeChar c)
+      | c == '-', lastc == '-', smart = (c, t' <> T.pack ['\\',c])
+      | c == '/', lastc == '/' = (c, t' <> T.pack ['\\',c])
+      | otherwise = (c, T.snoc t' c)
     escapeChar c
       | c == '\160' = "~"
       | c == '\8217', smart = "'" -- apostrophe

test/command/10271.md

@@ -16,7 +16,7 @@
 % pandoc -f markdown-smart -t typst+smart
 "don't do it---"
 ^D
-\"don\'t do it---\"
+\"don\'t do it-\-\-\"
 
 ```
 ```

test/command/8966.md

@@ -3,7 +3,7 @@
 **Samsonov T.E.** Shape-Adaptive Geometric Simplification of Heterogeneous Line Datasets / T. E. Samsonov, O. P. Yakimova // International Journal of Geographical Information Science. — 2017. — Vol. 31. — № 8. — pp. 1485-1520.
 ^D
 #strong[Samsonov T.E.] Shape-Adaptive Geometric Simplification of
-Heterogeneous Line Datasets / T. E. Samsonov, O. P. Yakimova \/\/
+Heterogeneous Line Datasets / T. E. Samsonov, O. P. Yakimova /\/
 International Journal of Geographical Information Science. --- 2017. ---
 Vol. 31. --- № 8. --- pp.~1485-1520.
 ```