Typst writer: use mid() for middle delimiters.

Partially resolves #238.
jgm · Aug 6, 2024 · d819ebc · d819ebc
1 parent d74bd09
commit d819ebc
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/src/Text/TeXMath/Writers/Typst.hs b/src/Text/TeXMath/Writers/Typst.hs
@@ -252,7 +252,8 @@ writeExp (EDelimited open close es) =
           then open <> body <> close
           else "lr" <> inParens (open <> body <> close)
      else esc open <> body <> esc close
-  where fromDelimited (Left e)  = e
+  where fromDelimited (Left e)  =
+          "mid(" <> fromMaybe (esc e) (M.lookup e typstSymbolMap) <> ")"
         fromDelimited (Right e) = writeExp e
         isDelim c = c `elem` ["(",")","[","]","{","}","|","||"]
         matchedPair "(" ")" = True

diff --git a/test/regression/238.test b/test/regression/238.test
@@ -0,0 +1,4 @@
+<<< tex
+\left\{ x \in \mathbb{R}^n \middle| \lVert x \rVert_2^2 = \sum_{i=1}^n x_i^2 = 1\right\}
+>>> typst
+{x in bb(R)^n mid(bar.v) parallel x parallel_2^2 = sum_(i = 1)^n x_i^2 = 1}