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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE CPP, MagicHash #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-# OPTIONS_GHC -fno-warn-orphans #-}</span>
<a name="line-3"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ >= 702</span>
<a name="line-4"></a><span class='hs-comment'>{-# LANGUAGE Trustworthy #-}</span>
<a name="line-5"></a><span class='hs-cpp'>#endif</span>
<a name="line-6"></a>
<a name="line-7"></a><span class='hs-comment'>-- |</span>
<a name="line-8"></a><span class='hs-comment'>-- Module : Data.Text.Show</span>
<a name="line-9"></a><span class='hs-comment'>-- Copyright : (c) 2009-2015 Bryan O'Sullivan</span>
<a name="line-10"></a><span class='hs-comment'>--</span>
<a name="line-11"></a><span class='hs-comment'>-- License : BSD-style</span>
<a name="line-12"></a><span class='hs-comment'>-- Maintainer : bos@serpentine.com</span>
<a name="line-13"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-14"></a><span class='hs-comment'>-- Portability : GHC</span>
<a name="line-15"></a>
<a name="line-16"></a><span class='hs-keyword'>module</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'>Show</span>
<a name="line-17"></a> <span class='hs-layout'>(</span>
<a name="line-18"></a> <span class='hs-varid'>singleton</span>
<a name="line-19"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>unpack</span>
<a name="line-20"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>unpackCString</span><span class='hs-cpp'>#</span>
<a name="line-21"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-22"></a>
<a name="line-23"></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-varop'>.</span><span class='hs-conid'>ST</span> <span class='hs-layout'>(</span><span class='hs-conid'>ST</span><span class='hs-layout'>)</span>
<a name="line-24"></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'>Internal</span> <span class='hs-layout'>(</span><span class='hs-conid'>Text</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'>empty_</span><span class='hs-layout'>,</span> <span class='hs-keyword'>safe</span><span class='hs-layout'>)</span>
<a name="line-25"></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'>Internal</span><span class='hs-varop'>.</span><span class='hs-conid'>Fusion</span> <span class='hs-layout'>(</span><span class='hs-varid'>stream</span><span class='hs-layout'>,</span> <span class='hs-varid'>unstream</span><span class='hs-layout'>)</span>
<a name="line-26"></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'>Internal</span><span class='hs-varop'>.</span><span class='hs-conid'>Unsafe</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeWrite</span><span class='hs-layout'>)</span>
<a name="line-27"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>Prim</span> <span class='hs-layout'>(</span><span class='hs-conid'>Addr</span><span class='hs-cpp'>#</span><span class='hs-layout'>)</span>
<a name="line-28"></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'>Array</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>A</span>
<a name="line-29"></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'>Internal</span><span class='hs-varop'>.</span><span class='hs-conid'>Fusion</span><span class='hs-varop'>.</span><span class='hs-conid'>Common</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>S</span>
<a name="line-30"></a>
<a name="line-31"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ >= 702</span>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>CString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>GHC</span>
<a name="line-33"></a><span class='hs-cpp'>#else</span>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>Base</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>GHC</span>
<a name="line-35"></a><span class='hs-cpp'>#endif</span>
<a name="line-36"></a>
<a name="line-37"></a><a name="instance%20Show%20Text"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>Text</span> <span class='hs-keyword'>where</span>
<a name="line-38"></a> <span class='hs-varid'>showsPrec</span> <span class='hs-varid'>p</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showsPrec</span> <span class='hs-varid'>p</span> <span class='hs-layout'>(</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>r</span>
<a name="line-39"></a>
<a name="line-40"></a><a name="unpack"></a><span class='hs-comment'>-- | /O(n)/ Convert a 'Text' into a 'String'. Subject to fusion.</span>
<a name="line-41"></a><span class='hs-definition'>unpack</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-42"></a><span class='hs-definition'>unpack</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>unstreamList</span> <span class='hs-varop'>.</span> <span class='hs-varid'>stream</span>
<a name="line-43"></a><span class='hs-comment'>{-# INLINE [1] unpack #-}</span>
<a name="line-44"></a>
<a name="line-45"></a><a name="unpackCString"></a><span class='hs-comment'>-- | /O(n)/ Convert a literal string into a 'Text'. Subject to</span>
<a name="line-46"></a><span class='hs-comment'>-- fusion.</span>
<a name="line-47"></a><span class='hs-comment'>--</span>
<a name="line-48"></a><span class='hs-comment'>-- This is exposed solely for people writing GHC rewrite rules.</span>
<a name="line-49"></a><span class='hs-definition'>unpackCString</span><span class='hs-cpp'>#</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Addr</span><span class='hs-cpp'>#</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-50"></a><span class='hs-definition'>unpackCString</span><span class='hs-cpp'>#</span> <span class='hs-varid'>addr</span><span class='hs-cpp'>#</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unstream</span> <span class='hs-layout'>(</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>streamCString</span><span class='hs-cpp'>#</span> <span class='hs-varid'>addr</span><span class='hs-cpp'>#</span><span class='hs-layout'>)</span>
<a name="line-51"></a><span class='hs-comment'>{-# NOINLINE unpackCString# #-}</span>
<a name="line-52"></a>
<a name="line-53"></a><span class='hs-comment'>{-# RULES "TEXT literal" [1] forall a.
<a name="line-54"></a> unstream (S.map safe (S.streamList (GHC.unpackCString# a)))
<a name="line-55"></a> = unpackCString# a #-}</span>
<a name="line-56"></a>
<a name="line-57"></a><span class='hs-comment'>{-# RULES "TEXT literal UTF8" [1] forall a.
<a name="line-58"></a> unstream (S.map safe (S.streamList (GHC.unpackCStringUtf8# a)))
<a name="line-59"></a> = unpackCString# a #-}</span>
<a name="line-60"></a>
<a name="line-61"></a><span class='hs-comment'>{-# RULES "TEXT empty literal" [1]
<a name="line-62"></a> unstream (S.map safe (S.streamList []))
<a name="line-63"></a> = empty_ #-}</span>
<a name="line-64"></a>
<a name="line-65"></a><span class='hs-comment'>{-# RULES "TEXT singleton literal" [1] forall a.
<a name="line-66"></a> unstream (S.map safe (S.streamList [a]))
<a name="line-67"></a> = singleton_ a #-}</span>
<a name="line-68"></a>
<a name="line-69"></a><a name="singleton"></a><span class='hs-comment'>-- | /O(1)/ Convert a character into a Text. Subject to fusion.</span>
<a name="line-70"></a><span class='hs-comment'>-- Performs replacement on invalid scalar values.</span>
<a name="line-71"></a><span class='hs-definition'>singleton</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-72"></a><span class='hs-definition'>singleton</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unstream</span> <span class='hs-varop'>.</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varop'>.</span> <span class='hs-keyword'>safe</span>
<a name="line-73"></a><span class='hs-comment'>{-# INLINE [1] singleton #-}</span>
<a name="line-74"></a>
<a name="line-75"></a><span class='hs-comment'>{-# RULES "TEXT singleton" forall a.
<a name="line-76"></a> unstream (S.singleton (safe a))
<a name="line-77"></a> = singleton_ a #-}</span>
<a name="line-78"></a>
<a name="line-79"></a><a name="singleton_"></a><span class='hs-comment'>-- This is intended to reduce inlining bloat.</span>
<a name="line-80"></a><span class='hs-definition'>singleton_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-81"></a><span class='hs-definition'>singleton_</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Text</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>run</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-varid'>len</span>
<a name="line-82"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ST</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>MArray</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-83"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>arr</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new</span> <span class='hs-varid'>len</span>
<a name="line-84"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unsafeWrite</span> <span class='hs-varid'>arr</span> <span class='hs-num'>0</span> <span class='hs-varid'>d</span>
<a name="line-85"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>arr</span>
<a name="line-86"></a> <span class='hs-varid'>len</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>d</span> <span class='hs-varop'><</span> <span class='hs-chr'>'\x10000'</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>1</span>
<a name="line-87"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>2</span>
<a name="line-88"></a> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>safe</span> <span class='hs-varid'>c</span>
<a name="line-89"></a><span class='hs-comment'>{-# NOINLINE singleton_ #-}</span>
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