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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE NoImplicitPrelude #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-- | BasicPrelude mostly re-exports</span>
<a name="line-4"></a><span class='hs-comment'>-- several key libraries in their entirety.</span>
<a name="line-5"></a><span class='hs-comment'>-- The exception is Data.List,</span>
<a name="line-6"></a><span class='hs-comment'>-- where various functions are replaced</span>
<a name="line-7"></a><span class='hs-comment'>-- by similar versions that are either</span>
<a name="line-8"></a><span class='hs-comment'>-- generalized, operate on Text,</span>
<a name="line-9"></a><span class='hs-comment'>-- or are implemented strictly.</span>
<a name="line-10"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>BasicPrelude</span>
<a name="line-11"></a> <span class='hs-layout'>(</span> <span class='hs-comment'>-- * Module exports</span>
<a name="line-12"></a> <span class='hs-keyword'>module</span> <span class='hs-conid'>CorePrelude</span>
<a name="line-13"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>module</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span>
<a name="line-14"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>module</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span>
<a name="line-15"></a>
<a name="line-16"></a> <span class='hs-comment'>-- ** Folds and traversals</span>
<a name="line-17"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Foldable</span>
<a name="line-18"></a> <span class='hs-layout'>(</span>
<a name="line-19"></a> <span class='hs-varid'>foldMap</span>
<a name="line-20"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldr</span>
<a name="line-21"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldr'</span>
<a name="line-22"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldl</span>
<a name="line-23"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldl'</span>
<a name="line-24"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldr1</span>
<a name="line-25"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldl1</span>
<a name="line-26"></a> <span class='hs-layout'>)</span>
<a name="line-27"></a> <span class='hs-comment'>-- In base-4.8, these are instance methods.</span>
<a name="line-28"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>elem</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maximum</span>
<a name="line-30"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>minimum</span>
<a name="line-31"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Traversable</span>
<a name="line-32"></a> <span class='hs-layout'>(</span>
<a name="line-33"></a> <span class='hs-varid'>traverse</span>
<a name="line-34"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sequenceA</span>
<a name="line-35"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>mapM</span>
<a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sequence</span>
<a name="line-37"></a> <span class='hs-layout'>)</span>
<a name="line-38"></a>
<a name="line-39"></a> <span class='hs-comment'>-- * Enhanced exports</span>
<a name="line-40"></a> <span class='hs-comment'>-- ** Simpler name for a typeclassed operation</span>
<a name="line-41"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>map</span>
<a name="line-42"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>empty</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>++</span><span class='hs-layout'>)</span>
<a name="line-44"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>concat</span>
<a name="line-45"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>intercalate</span>
<a name="line-46"></a> <span class='hs-comment'>-- ** Strict implementation</span>
<a name="line-47"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>BasicPrelude</span><span class='hs-varop'>.</span><span class='hs-varid'>sum</span>
<a name="line-48"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>BasicPrelude</span><span class='hs-varop'>.</span><span class='hs-varid'>product</span>
<a name="line-49"></a> <span class='hs-comment'>-- ** Text for Read and Show operations</span>
<a name="line-50"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>tshow</span>
<a name="line-51"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>fromShow</span>
<a name="line-52"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>read</span>
<a name="line-53"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>readIO</span>
<a name="line-54"></a> <span class='hs-comment'>-- ** FilePath for file operations</span>
<a name="line-55"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>readFile</span>
<a name="line-56"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>writeFile</span>
<a name="line-57"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>appendFile</span>
<a name="line-58"></a>
<a name="line-59"></a> <span class='hs-comment'>-- * Text exports</span>
<a name="line-60"></a> <span class='hs-comment'>-- ** Text operations (Pure)</span>
<a name="line-61"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>lines</span>
<a name="line-62"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>words</span>
<a name="line-63"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>unlines</span>
<a name="line-64"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>unwords</span>
<a name="line-65"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>textToString</span>
<a name="line-66"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ltextToString</span>
<a name="line-67"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>fpToText</span>
<a name="line-68"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>fpFromText</span>
<a name="line-69"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>fpToString</span>
<a name="line-70"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf8</span>
<a name="line-71"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf8</span>
<a name="line-72"></a> <span class='hs-comment'>-- ** Text operations (IO)</span>
<a name="line-73"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>getLine</span>
<a name="line-74"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>LText</span><span class='hs-varop'>.</span><span class='hs-varid'>getContents</span>
<a name="line-75"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>LText</span><span class='hs-varop'>.</span><span class='hs-varid'>interact</span>
<a name="line-76"></a>
<a name="line-77"></a> <span class='hs-comment'>-- * Miscellaneous prelude re-exports</span>
<a name="line-78"></a> <span class='hs-comment'>-- ** Math</span>
<a name="line-79"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>gcd</span>
<a name="line-80"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>lcm</span>
<a name="line-81"></a> <span class='hs-comment'>-- ** Show and Read</span>
<a name="line-82"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-conid'>Show</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-83"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-conid'>ShowS</span>
<a name="line-84"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>shows</span>
<a name="line-85"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>showChar</span>
<a name="line-86"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>showString</span>
<a name="line-87"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>showParen</span>
<a name="line-88"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-conid'>ReadS</span>
<a name="line-89"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>readsPrec</span>
<a name="line-90"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>readList</span>
<a name="line-91"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>reads</span>
<a name="line-92"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>readParen</span>
<a name="line-93"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>lex</span>
<a name="line-94"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>readMay</span>
<a name="line-95"></a> <span class='hs-comment'>-- ** IO operations</span>
<a name="line-96"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>putChar</span>
<a name="line-97"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>getChar</span>
<a name="line-98"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>readLn</span>
<a name="line-99"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-100"></a>
<a name="line-101"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>CorePrelude</span>
<a name="line-102"></a>
<a name="line-103"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-varid'>hiding</span>
<a name="line-104"></a> <span class='hs-layout'>(</span> <span class='hs-comment'>-- prefer monoid versions instead</span>
<a name="line-105"></a> <span class='hs-layout'>(</span><span class='hs-varop'>++</span><span class='hs-layout'>)</span>
<a name="line-106"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>concat</span>
<a name="line-107"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>intercalate</span>
<a name="line-108"></a> <span class='hs-comment'>-- prefer Text versions instead</span>
<a name="line-109"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>lines</span>
<a name="line-110"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>words</span>
<a name="line-111"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>unlines</span>
<a name="line-112"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>unwords</span>
<a name="line-113"></a> <span class='hs-comment'>-- prefer map = fmap instead</span>
<a name="line-114"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>map</span>
<a name="line-115"></a> <span class='hs-comment'>-- prefer strict versions</span>
<a name="line-116"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sum</span>
<a name="line-117"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>product</span>
<a name="line-118"></a> <span class='hs-comment'>-- prefer Foldable versions</span>
<a name="line-119"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>elem</span>
<a name="line-120"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldl</span>
<a name="line-121"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldl'</span>
<a name="line-122"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldl1</span>
<a name="line-123"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldr</span>
<a name="line-124"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldr'</span>
<a name="line-125"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldr1</span>
<a name="line-126"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maximum</span>
<a name="line-127"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>minimum</span>
<a name="line-128"></a> <span class='hs-layout'>)</span>
<a name="line-129"></a>
<a name="line-130"></a><span class='hs-comment'>-- Import *all of the things* from Control.Monad,</span>
<a name="line-131"></a><span class='hs-comment'>-- specifically, the list-based things that</span>
<a name="line-132"></a><span class='hs-comment'>-- CorePrelude doesn't export</span>
<a name="line-133"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-varid'>hiding</span>
<a name="line-134"></a> <span class='hs-layout'>(</span> <span class='hs-comment'>-- Also exported by Data.Traversable.</span>
<a name="line-135"></a> <span class='hs-varid'>mapM</span>
<a name="line-136"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sequence</span>
<a name="line-137"></a> <span class='hs-layout'>)</span>
<a name="line-138"></a>
<a name="line-139"></a>
<a name="line-140"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Foldable</span> <span class='hs-layout'>(</span><span class='hs-conid'>Foldable</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>elem</span><span class='hs-layout'>,</span> <span class='hs-varid'>maximum</span><span class='hs-layout'>,</span> <span class='hs-varid'>minimum</span><span class='hs-layout'>)</span>
<a name="line-141"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Traversable</span> <span class='hs-layout'>(</span><span class='hs-conid'>Traversable</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-142"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Text</span>
<a name="line-143"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Text</span>
<a name="line-144"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Lazy</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>LText</span>
<a name="line-145"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Lazy</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>LText</span>
<a name="line-146"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Prelude</span>
<a name="line-147"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Encoding</span> <span class='hs-layout'>(</span><span class='hs-varid'>encodeUtf8</span><span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf8With</span><span class='hs-layout'>)</span>
<a name="line-148"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Encoding</span><span class='hs-varop'>.</span><span class='hs-conid'>Error</span> <span class='hs-layout'>(</span><span class='hs-varid'>lenientDecode</span><span class='hs-layout'>)</span>
<a name="line-149"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Safe</span>
<a name="line-150"></a>
<a name="line-151"></a><a name="map"></a><span class='hs-comment'>-- | > map = fmap</span>
<a name="line-152"></a><span class='hs-definition'>map</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Functor</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>f</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>f</span> <span class='hs-varid'>b</span>
<a name="line-153"></a><span class='hs-definition'>map</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span>
<a name="line-154"></a>
<a name="line-155"></a><a name="empty"></a><span class='hs-comment'>-- | > empty = mempty</span>
<a name="line-156"></a><span class='hs-definition'>empty</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monoid</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>w</span>
<a name="line-157"></a><span class='hs-definition'>empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mempty</span>
<a name="line-158"></a><span class='hs-comment'>{-# DEPRECATED empty "Use mempty" #-}</span>
<a name="line-159"></a>
<a name="line-160"></a><span class='hs-keyword'>infixr</span> <span class='hs-num'>5</span> <span class='hs-varop'>++</span>
<a name="line-161"></a>
<a name="line-162"></a><a name="++"></a><span class='hs-comment'>-- | > (++) = mappend</span>
<a name="line-163"></a><span class='hs-layout'>(</span><span class='hs-varop'>++</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monoid</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>w</span>
<a name="line-164"></a><span class='hs-layout'>(</span><span class='hs-varop'>++</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mappend</span>
<a name="line-165"></a>
<a name="line-166"></a><a name="concat"></a><span class='hs-comment'>-- | > concat = mconcat</span>
<a name="line-167"></a><span class='hs-definition'>concat</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monoid</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>w</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>w</span>
<a name="line-168"></a><span class='hs-definition'>concat</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mconcat</span>
<a name="line-169"></a>
<a name="line-170"></a><a name="intercalate"></a><span class='hs-comment'>-- | > intercalate = mconcat .: intersperse</span>
<a name="line-171"></a><span class='hs-definition'>intercalate</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monoid</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>w</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>w</span>
<a name="line-172"></a><span class='hs-definition'>intercalate</span> <span class='hs-varid'>xs</span> <span class='hs-varid'>xss</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mconcat</span> <span class='hs-layout'>(</span><span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span><span class='hs-varop'>.</span><span class='hs-varid'>intersperse</span> <span class='hs-varid'>xs</span> <span class='hs-varid'>xss</span><span class='hs-layout'>)</span>
<a name="line-173"></a>
<a name="line-174"></a>
<a name="line-175"></a><a name="sum"></a><span class='hs-comment'>-- | Compute the sum of a finite list of numbers.</span>
<a name="line-176"></a><span class='hs-definition'>sum</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Foldable</span> <span class='hs-varid'>f</span><span class='hs-layout'>,</span> <span class='hs-conid'>Num</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>f</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-177"></a><span class='hs-definition'>sum</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Foldable</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-varop'>+</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span>
<a name="line-178"></a>
<a name="line-179"></a><a name="product"></a><span class='hs-comment'>-- | Compute the product of a finite list of numbers.</span>
<a name="line-180"></a><span class='hs-definition'>product</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Foldable</span> <span class='hs-varid'>f</span><span class='hs-layout'>,</span> <span class='hs-conid'>Num</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>f</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-181"></a><span class='hs-definition'>product</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Foldable</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-varop'>*</span><span class='hs-layout'>)</span> <span class='hs-num'>1</span>
<a name="line-182"></a>
<a name="line-183"></a>
<a name="line-184"></a><a name="tshow"></a><span class='hs-comment'>-- | Convert a value to readable Text</span>
<a name="line-185"></a><span class='hs-comment'>--</span>
<a name="line-186"></a><span class='hs-comment'>-- @since 0.6.0</span>
<a name="line-187"></a><span class='hs-definition'>tshow</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Show</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-188"></a><span class='hs-definition'>tshow</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>show</span>
<a name="line-189"></a>
<a name="line-190"></a><a name="fromShow"></a><span class='hs-comment'>-- | Convert a value to readable IsString</span>
<a name="line-191"></a><span class='hs-comment'>--</span>
<a name="line-192"></a><span class='hs-comment'>-- Since 0.3.12</span>
<a name="line-193"></a><span class='hs-definition'>fromShow</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span> <span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-conid'>IsString</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span>
<a name="line-194"></a><span class='hs-definition'>fromShow</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromString</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>show</span>
<a name="line-195"></a>
<a name="line-196"></a><a name="read"></a><span class='hs-comment'>-- | Parse Text to a value</span>
<a name="line-197"></a><span class='hs-definition'>read</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Read</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-198"></a><span class='hs-definition'>read</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>read</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span>
<a name="line-199"></a>
<a name="line-200"></a><a name="readIO"></a><span class='hs-comment'>-- | The readIO function is similar to read</span>
<a name="line-201"></a><span class='hs-comment'>-- except that it signals parse failure to the IO monad</span>
<a name="line-202"></a><span class='hs-comment'>-- instead of terminating the program.</span>
<a name="line-203"></a><span class='hs-definition'>readIO</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Read</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-204"></a><span class='hs-definition'>readIO</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>readIO</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span>
<a name="line-205"></a>
<a name="line-206"></a>
<a name="line-207"></a><a name="readFile"></a><span class='hs-comment'>-- | Read a file and return the contents of the file as Text.</span>
<a name="line-208"></a><span class='hs-comment'>-- The entire file is read strictly.</span>
<a name="line-209"></a><span class='hs-definition'>readFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Text</span>
<a name="line-210"></a><span class='hs-definition'>readFile</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>readFile</span>
<a name="line-211"></a>
<a name="line-212"></a><a name="writeFile"></a><span class='hs-comment'>-- | Write Text to a file.</span>
<a name="line-213"></a><span class='hs-comment'>-- The file is truncated to zero length before writing begins.</span>
<a name="line-214"></a><span class='hs-definition'>writeFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-215"></a><span class='hs-definition'>writeFile</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>writeFile</span>
<a name="line-216"></a>
<a name="line-217"></a><a name="appendFile"></a><span class='hs-comment'>-- | Write Text to the end of a file.</span>
<a name="line-218"></a><span class='hs-definition'>appendFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-219"></a><span class='hs-definition'>appendFile</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>appendFile</span>
<a name="line-220"></a>
<a name="line-221"></a><a name="textToString"></a><span class='hs-definition'>textToString</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-conid'>String</span>
<a name="line-222"></a><span class='hs-definition'>textToString</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span>
<a name="line-223"></a>
<a name="line-224"></a><a name="ltextToString"></a><span class='hs-definition'>ltextToString</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>LText</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-conid'>String</span>
<a name="line-225"></a><span class='hs-definition'>ltextToString</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>LText</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span>
<a name="line-226"></a>
<a name="line-227"></a><a name="fpToText"></a><span class='hs-comment'>-- | This function assumes file paths are encoded in UTF8. If it</span>
<a name="line-228"></a><span class='hs-comment'>-- cannot decode the 'FilePath', the result is just an approximation.</span>
<a name="line-229"></a><span class='hs-comment'>--</span>
<a name="line-230"></a><span class='hs-comment'>-- Since 0.3.13</span>
<a name="line-231"></a><span class='hs-definition'>fpToText</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-232"></a><span class='hs-definition'>fpToText</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span>
<a name="line-233"></a><span class='hs-comment'>{-# DEPRECATED fpToText "Use Data.Text.pack" #-}</span>
<a name="line-234"></a>
<a name="line-235"></a><a name="fpFromText"></a><span class='hs-comment'>-- |</span>
<a name="line-236"></a><span class='hs-comment'>-- Since 0.3.13</span>
<a name="line-237"></a><span class='hs-definition'>fpFromText</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span>
<a name="line-238"></a><span class='hs-definition'>fpFromText</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span>
<a name="line-239"></a><span class='hs-comment'>{-# DEPRECATED fpFromText "Use Data.Text.unpack" #-}</span>
<a name="line-240"></a>
<a name="line-241"></a><a name="fpToString"></a><span class='hs-comment'>-- |</span>
<a name="line-242"></a><span class='hs-comment'>-- Since 0.3.13</span>
<a name="line-243"></a><span class='hs-definition'>fpToString</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-conid'>String</span>
<a name="line-244"></a><span class='hs-definition'>fpToString</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-245"></a><span class='hs-comment'>{-# DEPRECATED fpToString "Use id" #-}</span>
<a name="line-246"></a>
<a name="line-247"></a><a name="decodeUtf8"></a><span class='hs-comment'>-- | Note that this is /not/ the standard @Data.Text.Encoding.decodeUtf8@. That</span>
<a name="line-248"></a><span class='hs-comment'>-- function will throw impure exceptions on any decoding errors. This function</span>
<a name="line-249"></a><span class='hs-comment'>-- instead uses @decodeLenient@.</span>
<a name="line-250"></a><span class='hs-definition'>decodeUtf8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-251"></a><span class='hs-definition'>decodeUtf8</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeUtf8With</span> <span class='hs-varid'>lenientDecode</span>
<a name="line-252"></a>
<a name="line-253"></a><a name="readMay"></a><span class='hs-definition'>readMay</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Read</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-varid'>a</span>
<a name="line-254"></a><span class='hs-definition'>readMay</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Safe</span><span class='hs-varop'>.</span><span class='hs-varid'>readMay</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span>
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