On 24 January 2011 12:01, Ryan Newton
Hello libraries [= maintainer of 'pretty' package],
I'm a happy user of the pretty printing library, with which I emit large quantities of nicely indented C++ code. Sometimes I append large strings with "text x <>".
In this case performance improvements would not go unappreciated. Has there been any thought of a ByteString version?
Not quite what you're asking, but I'm almost ready to release a text [1] version of wl-pprint [2]. The darcs repo can be found at http://code.haskell.org/~ivanm/wl-pprint-text/ [1]: http://hackage.haskell.org/package/text [2]: http://hackage.haskell.org/package/wl-pprint
I notice that the source is only 1K lines. While I imagine that you wouldn't want to break the interface in a backwards compatible way, would it be possible to simple give the "TextDetails" type a parameter and then use a StringLike class (with length, append, what else?). Text.PrettyPrint.HughesPJ could keep the same interface, and the generic version could go in Text.PrettyPrint.HughesPJGeneric or Text.PrettyPrint.HughesPJ.Generic or whatever.
I'm not sure how well that would work, especially because you'd typically want to use a Builder for the internals (maybe a DList for String?) rather than the type itself. -- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com