Difference between revisions of "Talk:MonadPlus reform proposal"
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Udo Stenzel (talk | contribs) |
Udo Stenzel (talk | contribs) |
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This is a good proposal, I think. The standard libraries use MonadZero only in two places: functions <tt>guard</tt> and <tt>msum</tt>. <tt>msum</tt> should probably be accompanied by a reduction with <tt>morelse</tt>, which should then be called <tt>mchoice</tt>. |
This is a good proposal, I think. The standard libraries use MonadZero only in two places: functions <tt>guard</tt> and <tt>msum</tt>. <tt>msum</tt> should probably be accompanied by a reduction with <tt>morelse</tt>, which should then be called <tt>mchoice</tt>. |
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| − | Parsec already has operators <tt>(< |
+ | Parsec already has operators <tt>(<|>)</tt> and <tt>choice</tt> with fitting semantics. Simply calling <tt>morelse (<|>)</tt> and <tt>mchoice choice</tt> might be even more convenient. |
--[[User:Udo Stenzel|Udo Stenzel]] 11:42, 20 January 2006 (UTC) |
--[[User:Udo Stenzel|Udo Stenzel]] 11:42, 20 January 2006 (UTC) |
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Latest revision as of 12:17, 20 January 2006
This is a good proposal, I think. The standard libraries use MonadZero only in two places: functions guard and msum. msum should probably be accompanied by a reduction with morelse, which should then be called mchoice.
Parsec already has operators (<|>) and choice with fitting semantics. Simply calling morelse (<|>) and mchoice choice might be even more convenient.
--Udo Stenzel 11:42, 20 January 2006 (UTC)