Fix keyval funtion: pandoc did not parse options in braces correctly.… (#3642)

* Fix keyval funtion: pandoc did not parse options in braces correctly. Additionally, dot, dash, and colon were no valid characters

* Add | as possible option value

* Improved code

2 files changed, 26 insertions, 1 deletions

diff --git a/src/Text/Pandoc/Readers/LaTeX.hs b/src/Text/Pandoc/Readers/LaTeX.hs
index b88b6eae4..1ce92a4a2 100644
--- a/src/Text/Pandoc/Readers/LaTeX.hs
+++ b/src/Text/Pandoc/Readers/LaTeX.hs
@@ -1095,7 +1095,7 @@ parseListingsOptions options =
 keyval :: PandocMonad m => LP m (String, String)
 keyval = try $ do
   key <- many1 alphaNum
-  val <- option "" $ char '=' >> many1 (alphaNum <|> char '.' <|> char '\\')
+  val <- option "" $ char '=' >> braced <|> (many1 (alphaNum <|> oneOf ".:-|\\"))
   skipMany spaceChar
   optional (char ',')
   skipMany spaceChar
diff --git a/test/command/lstlisting.md b/test/command/lstlisting.md
new file mode 100644
index 000000000..d928cc702
--- /dev/null
+++ b/test/command/lstlisting.md
@@ -0,0 +1,25 @@
+```
+% pandoc -f latex -t native
+\begin{lstlisting}[language=Java, caption={Java Example}, label=lst:Hello-World]
+public class World {
+    public static void main(String[] args) {
+        System.out.println("Hello World");
+    }
+}
+\end{lstlisting}
+^D
+[CodeBlock ("lst:Hello-World",["java"],[("language","Java"),("caption","Java Example"),("label","lst:Hello-World")]) "public class World {\n    public static void main(String[] args) {\n        System.out.println(\"Hello World\");\n    }\n}"]
+```
+
+```
+% pandoc -f latex -t native
+\begin{lstlisting}[language=Java, escapechar=|, caption={Java Example}, label=lst:Hello-World]
+public class World {
+    public static void main(String[] args) {
+        System.out.println("Hello World");
+    }
+}
+\end{lstlisting}
+^D
+[CodeBlock ("lst:Hello-World",["java"],[("language","Java"),("escapechar","|"),("caption","Java Example"),("label","lst:Hello-World")]) "public class World {\n    public static void main(String[] args) {\n        System.out.println(\"Hello World\");\n    }\n}"]
+```