I'm using haskell-src-exts together with SYB for a code-rewriting project, and I'm having difficulty with parenthesization. I naïvely expected that parentheses would be absent from the abstract syntax, being removed during parsing and inserted during pretty-printing. It's easy for me to remove them myself, but harder to add them (minimally) after transformation. Rather than re-inventing the wheel, I thought I'd ask for help.
Has anyone written automatic minimal parens insertion for haskell-src-exts? -- Conal
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