Difference between revisions of "Show and Read instance"
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(How to implement show and read?) |
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The next question is: |
The next question is: |
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− | Shall <hask>show</hask> emit valid Haskell code, |
+ | Shall <hask>show</hask> emit valid Haskell code, that represents the shown data, |
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− | that represents the shown data, |
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+ | * [http://www.haskell.org/pipermail/libraries/2005-March/003496.html Meaning of Show and Read I] |
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+ | * [http://www.haskell.org/pipermail/glasgow-haskell-users/2003-August/005586.html Show instance for Tree] |
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[[Category:Style]] |
[[Category:Style]] |
Latest revision as of 14:32, 13 November 2006
What shall the Show and Read instances show and parse, respectively? It is certainly a good thing, if
read
parses, whatshow
shows.
The next question is:
Shall show
emit valid Haskell code, that represents the shown data,
or shall it show eye-candy, maybe even formatted in a line-oriented way.