Show and Read instance

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	The next question is:		The next question is:
-	Shall <hask>show</hask> emit valid Haskell code,	+	Shall <hask>show</hask> emit valid Haskell code, that represents the shown data,
-	that represents the shown data,	+	or shall it show eye-candy, maybe even formatted in a line-oriented way.
-	or shall it show something user friendly, maybe even something that is formatted in a line-oriented way.	+
-	[http://www.haskell.org/pipermail/libraries/2005-March/003496.html Meaning of Show and Read I]	+	* [http://www.haskell.org/pipermail/libraries/2005-March/003496.html Meaning of Show and Read I]
-	[http://www.haskell.org/pipermail/libraries/2005-March/003497.html Meaning of Show and Read II]	+	* [http://www.haskell.org/pipermail/libraries/2005-March/003497.html Meaning of Show and Read II]
-		+	* [http://www.haskell.org/pipermail/glasgow-haskell-users/2003-August/005586.html Show instance for Tree]
-	[http://www.haskell.org/pipermail/libraries/2006-November/006257.html Raw vs. Show]	+	* [http://www.haskell.org/pipermail/libraries/2006-November/006257.html Raw vs. Show]
-		+
-	[http://www.haskell.org/pipermail/glasgow-haskell-users/2003-August/005586.html Show instance for Tree]	+
	[[Category:Style]]		[[Category:Style]]

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Current revision

What shall the Show and Read instances show and parse, respectively? It is certainly a good thing, if

• read
  parses, what
  show
  shows.

The next question is:

Shall emit valid Haskell code, that represents the shown data,

or shall it show eye-candy, maybe even formatted in a line-oriented way.

• Meaning of Show and Read I
• Meaning of Show and Read II
• Show instance for Tree
• Raw vs. Show

Category: Style