<div dir="ltr">On Fri, Dec 14, 2012 at 9:57 AM, Emmanuel Touzery <span dir="ltr"><<a href="mailto:etouzery@gmail.com" target="_blank">etouzery@gmail.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF"><font size="-1"><font size="-1"> I expect<font size="-1">ed "r<font size="-1">ead"</font></font></font>
to work directly on a Data.Text because Data.Text <font size="-1">has
an instance of the Read class, but it seems to fail:<br></font></font></div></blockquote><div><br></div><div>An instance of Read means that read can *produce* a Text, not that it can consume one. read always reads from a String, as you can see from its type:</div>
<div><br></div><div><div> Prelude Data.Text> :t read</div><div> read :: Read a => String -> a</div></div><div><br></div><div>(Note that it is the result type a in the context for Read.)</div><div><br></div>
<div>See the Data.Text.Read module (part of the text package you already have installed) for how to do similar things with a Text as a source.</div><div><br></div></div>-- <br><div dir="ltr"><div>brandon s allbery kf8nh sine nomine associates</div>
<div><a href="mailto:allbery.b@gmail.com" target="_blank">allbery.b@gmail.com</a> <a href="mailto:ballbery@sinenomine.net" target="_blank">ballbery@sinenomine.net</a></div><div>unix, openafs, kerberos, infrastructure, xmonad <a href="http://sinenomine.net" target="_blank">http://sinenomine.net</a></div>
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