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<pre><a name="line-1"></a><span class='hs-comment'>--------------------------------------------------------------------</span>
<a name="line-2"></a><span class='hs-comment'>-- |</span>
<a name="line-3"></a><span class='hs-comment'>-- Module : Text.XML.Light.Output</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) Galois, Inc. 2007</span>
<a name="line-5"></a><span class='hs-comment'>-- License : BSD3</span>
<a name="line-6"></a><span class='hs-comment'>--</span>
<a name="line-7"></a><span class='hs-comment'>-- Maintainer: Iavor S. Diatchki <diatchki@galois.com></span>
<a name="line-8"></a><span class='hs-comment'>-- Stability : provisional</span>
<a name="line-9"></a><span class='hs-comment'>-- Portability:</span>
<a name="line-10"></a><span class='hs-comment'>--</span>
<a name="line-11"></a><span class='hs-comment'>-- Output handling for the lightweight XML lib.</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a>
<a name="line-14"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>XML</span><span class='hs-varop'>.</span><span class='hs-conid'>Light</span><span class='hs-varop'>.</span><span class='hs-conid'>Output</span>
<a name="line-15"></a> <span class='hs-layout'>(</span> <span class='hs-varid'>showTopElement</span><span class='hs-layout'>,</span> <span class='hs-varid'>showContent</span><span class='hs-layout'>,</span> <span class='hs-varid'>showElement</span><span class='hs-layout'>,</span> <span class='hs-varid'>showCData</span><span class='hs-layout'>,</span> <span class='hs-varid'>showQName</span><span class='hs-layout'>,</span> <span class='hs-varid'>showAttr</span>
<a name="line-16"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ppTopElement</span><span class='hs-layout'>,</span> <span class='hs-varid'>ppContent</span><span class='hs-layout'>,</span> <span class='hs-varid'>ppElement</span>
<a name="line-17"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ppcTopElement</span><span class='hs-layout'>,</span> <span class='hs-varid'>ppcContent</span><span class='hs-layout'>,</span> <span class='hs-varid'>ppcElement</span>
<a name="line-18"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>ConfigPP</span>
<a name="line-19"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>defaultConfigPP</span><span class='hs-layout'>,</span> <span class='hs-varid'>prettyConfigPP</span>
<a name="line-20"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>useShortEmptyTags</span><span class='hs-layout'>,</span> <span class='hs-varid'>useExtraWhiteSpace</span>
<a name="line-21"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>tagEnd</span><span class='hs-layout'>,</span> <span class='hs-varid'>xml_header</span>
<a name="line-22"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-23"></a>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>XML</span><span class='hs-varop'>.</span><span class='hs-conid'>Light</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</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'>Char</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'>List</span> <span class='hs-layout'>(</span> <span class='hs-varid'>isPrefixOf</span> <span class='hs-layout'>)</span>
<a name="line-27"></a>
<a name="line-28"></a><a name="xml_header"></a><span class='hs-comment'>-- | The XML 1.0 header</span>
<a name="line-29"></a><span class='hs-definition'>xml_header</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-30"></a><span class='hs-definition'>xml_header</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"<?xml version='1.0' ?>"</span>
<a name="line-31"></a>
<a name="line-32"></a>
<a name="line-33"></a><a name="ConfigPP"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-34"></a><a name="ConfigPP"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ConfigPP</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ConfigPP</span>
<a name="line-35"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>shortEmptyTag</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>prettify</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span>
<a name="line-37"></a> <span class='hs-layout'>}</span>
<a name="line-38"></a>
<a name="line-39"></a><a name="defaultConfigPP"></a><span class='hs-comment'>-- | Default pretty orinting configutaion.</span>
<a name="line-40"></a><span class='hs-comment'>-- * Always use abbreviate empty tags.</span>
<a name="line-41"></a><span class='hs-definition'>defaultConfigPP</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConfigPP</span>
<a name="line-42"></a><span class='hs-definition'>defaultConfigPP</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ConfigPP</span> <span class='hs-layout'>{</span> <span class='hs-varid'>shortEmptyTag</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>const</span> <span class='hs-conid'>True</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>prettify</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-44"></a> <span class='hs-layout'>}</span>
<a name="line-45"></a>
<a name="line-46"></a><a name="useShortEmptyTags"></a><span class='hs-comment'>-- | The predicate specifies for which empty tags we should use XML's</span>
<a name="line-47"></a><span class='hs-comment'>-- abbreviated notation <TAG />. This is useful if we are working with</span>
<a name="line-48"></a><span class='hs-comment'>-- some XML-ish standards (such as certain versions of HTML) where some</span>
<a name="line-49"></a><span class='hs-comment'>-- empty tags should always be displayed in the <TAG></TAG> form.</span>
<a name="line-50"></a><span class='hs-definition'>useShortEmptyTags</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConfigPP</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConfigPP</span>
<a name="line-51"></a><span class='hs-definition'>useShortEmptyTags</span> <span class='hs-varid'>p</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>c</span> <span class='hs-layout'>{</span> <span class='hs-varid'>shortEmptyTag</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span> <span class='hs-layout'>}</span>
<a name="line-52"></a>
<a name="line-53"></a>
<a name="line-54"></a><a name="useExtraWhiteSpace"></a><span class='hs-comment'>-- | Specify if we should use extra white-space to make document more readable.</span>
<a name="line-55"></a><span class='hs-comment'>-- WARNING: This adds additional white-space to text elements,</span>
<a name="line-56"></a><span class='hs-comment'>-- and so it may change the meaning of the document.</span>
<a name="line-57"></a><span class='hs-definition'>useExtraWhiteSpace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConfigPP</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ConfigPP</span>
<a name="line-58"></a><span class='hs-definition'>useExtraWhiteSpace</span> <span class='hs-varid'>p</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>c</span> <span class='hs-layout'>{</span> <span class='hs-varid'>prettify</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span> <span class='hs-layout'>}</span>
<a name="line-59"></a>
<a name="line-60"></a><a name="prettyConfigPP"></a><span class='hs-comment'>-- | A configuration that tries to make things pretty</span>
<a name="line-61"></a><span class='hs-comment'>-- (possibly at the cost of changing the semantics a bit</span>
<a name="line-62"></a><span class='hs-comment'>-- through adding white space.)</span>
<a name="line-63"></a><span class='hs-definition'>prettyConfigPP</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConfigPP</span>
<a name="line-64"></a><span class='hs-definition'>prettyConfigPP</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>useExtraWhiteSpace</span> <span class='hs-conid'>True</span> <span class='hs-varid'>defaultConfigPP</span>
<a name="line-65"></a>
<a name="line-66"></a>
<a name="line-67"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-68"></a>
<a name="line-69"></a>
<a name="line-70"></a><a name="ppTopElement"></a><span class='hs-comment'>-- | Pretty printing renders XML documents faithfully,</span>
<a name="line-71"></a><span class='hs-comment'>-- with the exception that whitespace may be added\/removed</span>
<a name="line-72"></a><span class='hs-comment'>-- in non-verbatim character data.</span>
<a name="line-73"></a><span class='hs-definition'>ppTopElement</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Element</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-74"></a><span class='hs-definition'>ppTopElement</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppcTopElement</span> <span class='hs-varid'>prettyConfigPP</span>
<a name="line-75"></a>
<a name="line-76"></a><a name="ppElement"></a><span class='hs-comment'>-- | Pretty printing elements</span>
<a name="line-77"></a><span class='hs-definition'>ppElement</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Element</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-78"></a><span class='hs-definition'>ppElement</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppcElement</span> <span class='hs-varid'>prettyConfigPP</span>
<a name="line-79"></a>
<a name="line-80"></a><a name="ppContent"></a><span class='hs-comment'>-- | Pretty printing content</span>
<a name="line-81"></a><span class='hs-definition'>ppContent</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Content</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-82"></a><span class='hs-definition'>ppContent</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppcContent</span> <span class='hs-varid'>prettyConfigPP</span>
<a name="line-83"></a>
<a name="line-84"></a>
<a name="line-85"></a>
<a name="line-86"></a><a name="ppcTopElement"></a><span class='hs-comment'>-- | Pretty printing renders XML documents faithfully,</span>
<a name="line-87"></a><span class='hs-comment'>-- with the exception that whitespace may be added\/removed</span>
<a name="line-88"></a><span class='hs-comment'>-- in non-verbatim character data.</span>
<a name="line-89"></a><span class='hs-definition'>ppcTopElement</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConfigPP</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Element</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-90"></a><span class='hs-definition'>ppcTopElement</span> <span class='hs-varid'>c</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unlines</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>xml_header</span><span class='hs-layout'>,</span><span class='hs-varid'>ppcElement</span> <span class='hs-varid'>c</span> <span class='hs-varid'>e</span><span class='hs-keyglyph'>]</span>
<a name="line-91"></a>
<a name="line-92"></a><a name="ppcElement"></a><span class='hs-comment'>-- | Pretty printing elements</span>
<a name="line-93"></a><span class='hs-definition'>ppcElement</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConfigPP</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Element</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-94"></a><span class='hs-definition'>ppcElement</span> <span class='hs-varid'>c</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppElementS</span> <span class='hs-varid'>c</span> <span class='hs-str'>""</span> <span class='hs-varid'>e</span> <span class='hs-str'>""</span>
<a name="line-95"></a>
<a name="line-96"></a><a name="ppcContent"></a><span class='hs-comment'>-- | Pretty printing content</span>
<a name="line-97"></a><span class='hs-definition'>ppcContent</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConfigPP</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Content</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-98"></a><span class='hs-definition'>ppcContent</span> <span class='hs-varid'>c</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppContentS</span> <span class='hs-varid'>c</span> <span class='hs-str'>""</span> <span class='hs-varid'>x</span> <span class='hs-str'>""</span>
<a name="line-99"></a>
<a name="line-100"></a>
<a name="line-101"></a>
<a name="line-102"></a>
<a name="line-103"></a>
<a name="line-104"></a><a name="ppContentS"></a><span class='hs-comment'>-- | Pretty printing content using ShowS</span>
<a name="line-105"></a><span class='hs-definition'>ppContentS</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConfigPP</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Content</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ShowS</span>
<a name="line-106"></a><span class='hs-definition'>ppContentS</span> <span class='hs-varid'>c</span> <span class='hs-varid'>i</span> <span class='hs-varid'>x</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-107"></a> <span class='hs-conid'>Elem</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ppElementS</span> <span class='hs-varid'>c</span> <span class='hs-varid'>i</span> <span class='hs-varid'>e</span> <span class='hs-varid'>xs</span>
<a name="line-108"></a> <span class='hs-conid'>Text</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ppCDataS</span> <span class='hs-varid'>c</span> <span class='hs-varid'>i</span> <span class='hs-varid'>t</span> <span class='hs-varid'>xs</span>
<a name="line-109"></a> <span class='hs-conid'>CRef</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>showCRefS</span> <span class='hs-varid'>r</span> <span class='hs-varid'>xs</span>
<a name="line-110"></a>
<a name="line-111"></a><a name="ppElementS"></a><span class='hs-definition'>ppElementS</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConfigPP</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Element</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ShowS</span>
<a name="line-112"></a><span class='hs-definition'>ppElementS</span> <span class='hs-varid'>c</span> <span class='hs-varid'>i</span> <span class='hs-varid'>e</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>i</span> <span class='hs-varop'>++</span> <span class='hs-layout'>(</span><span class='hs-varid'>tagStart</span> <span class='hs-layout'>(</span><span class='hs-varid'>elName</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>elAttribs</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-113"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>elContent</span> <span class='hs-varid'>e</span> <span class='hs-keyword'>of</span>
<a name="line-114"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>|</span> <span class='hs-str'>"?"</span> <span class='hs-varop'>`isPrefixOf`</span> <span class='hs-varid'>qName</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>-></span> <span class='hs-str'>" ?>"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>xs</span>
<a name="line-115"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>shortEmptyTag</span> <span class='hs-varid'>c</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>-></span> <span class='hs-str'>" />"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>xs</span>
<a name="line-116"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Text</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-str'>">"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>ppCDataS</span> <span class='hs-varid'>c</span> <span class='hs-str'>""</span> <span class='hs-varid'>t</span> <span class='hs-layout'>(</span><span class='hs-varid'>tagEnd</span> <span class='hs-varid'>name</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-117"></a> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'>-></span> <span class='hs-chr'>'>'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>nl</span> <span class='hs-varop'>++</span> <span class='hs-varid'>foldr</span> <span class='hs-varid'>ppSub</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>++</span> <span class='hs-varid'>tagEnd</span> <span class='hs-varid'>name</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-varid'>cs</span>
<a name="line-118"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>ppSub</span> <span class='hs-varid'>e1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppContentS</span> <span class='hs-varid'>c</span> <span class='hs-layout'>(</span><span class='hs-varid'>sp</span> <span class='hs-varop'>++</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-varid'>e1</span> <span class='hs-varop'>.</span> <span class='hs-varid'>showString</span> <span class='hs-varid'>nl</span>
<a name="line-119"></a> <span class='hs-layout'>(</span><span class='hs-varid'>nl</span><span class='hs-layout'>,</span><span class='hs-varid'>sp</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>prettify</span> <span class='hs-varid'>c</span> <span class='hs-keyword'>then</span> <span class='hs-layout'>(</span><span class='hs-str'>"\n"</span><span class='hs-layout'>,</span><span class='hs-str'>" "</span><span class='hs-layout'>)</span> <span class='hs-keyword'>else</span> <span class='hs-layout'>(</span><span class='hs-str'>""</span><span class='hs-layout'>,</span><span class='hs-str'>""</span><span class='hs-layout'>)</span>
<a name="line-120"></a> <span class='hs-layout'>)</span>
<a name="line-121"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>elName</span> <span class='hs-varid'>e</span>
<a name="line-122"></a>
<a name="line-123"></a><a name="ppCDataS"></a><span class='hs-definition'>ppCDataS</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConfigPP</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CData</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ShowS</span>
<a name="line-124"></a><span class='hs-definition'>ppCDataS</span> <span class='hs-varid'>c</span> <span class='hs-varid'>i</span> <span class='hs-varid'>t</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>i</span> <span class='hs-varop'>++</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>cdVerbatim</span> <span class='hs-varid'>t</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>CDataText</span> <span class='hs-varop'>||</span> <span class='hs-varid'>not</span> <span class='hs-layout'>(</span><span class='hs-varid'>prettify</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-125"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>showCDataS</span> <span class='hs-varid'>t</span> <span class='hs-varid'>xs</span>
<a name="line-126"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>foldr</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>xs</span> <span class='hs-layout'>(</span><span class='hs-varid'>showCData</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-127"></a>
<a name="line-128"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>cons</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-129"></a> <span class='hs-varid'>cons</span> <span class='hs-chr'>'\n'</span> <span class='hs-varid'>ys</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"\n"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>i</span> <span class='hs-varop'>++</span> <span class='hs-varid'>ys</span>
<a name="line-130"></a> <span class='hs-varid'>cons</span> <span class='hs-varid'>y</span> <span class='hs-varid'>ys</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>y</span> <span class='hs-conop'>:</span> <span class='hs-varid'>ys</span>
<a name="line-131"></a>
<a name="line-132"></a>
<a name="line-133"></a>
<a name="line-134"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-135"></a>
<a name="line-136"></a><a name="showTopElement"></a><span class='hs-comment'>-- | Adds the <?xml?> header.</span>
<a name="line-137"></a><span class='hs-definition'>showTopElement</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Element</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-138"></a><span class='hs-definition'>showTopElement</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>xml_header</span> <span class='hs-varop'>++</span> <span class='hs-varid'>showElement</span> <span class='hs-varid'>c</span>
<a name="line-139"></a>
<a name="line-140"></a><a name="showContent"></a><span class='hs-definition'>showContent</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Content</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-141"></a><span class='hs-definition'>showContent</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppContentS</span> <span class='hs-varid'>defaultConfigPP</span> <span class='hs-str'>""</span> <span class='hs-varid'>c</span> <span class='hs-str'>""</span>
<a name="line-142"></a>
<a name="line-143"></a><a name="showElement"></a><span class='hs-definition'>showElement</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Element</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-144"></a><span class='hs-definition'>showElement</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppElementS</span> <span class='hs-varid'>defaultConfigPP</span> <span class='hs-str'>""</span> <span class='hs-varid'>c</span> <span class='hs-str'>""</span>
<a name="line-145"></a>
<a name="line-146"></a><a name="showCData"></a><span class='hs-definition'>showCData</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CData</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-147"></a><span class='hs-definition'>showCData</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppCDataS</span> <span class='hs-varid'>defaultConfigPP</span> <span class='hs-str'>""</span> <span class='hs-varid'>c</span> <span class='hs-str'>""</span>
<a name="line-148"></a>
<a name="line-149"></a><a name="showCRefS"></a><span class='hs-comment'>-- Note: crefs should not contain '&', ';', etc.</span>
<a name="line-150"></a><span class='hs-definition'>showCRefS</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ShowS</span>
<a name="line-151"></a><span class='hs-definition'>showCRefS</span> <span class='hs-varid'>r</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'&'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>r</span> <span class='hs-varop'>++</span> <span class='hs-chr'>';'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>xs</span>
<a name="line-152"></a>
<a name="line-153"></a><a name="showCDataS"></a><span class='hs-comment'>-- | Convert a text element to characters.</span>
<a name="line-154"></a><span class='hs-definition'>showCDataS</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CData</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ShowS</span>
<a name="line-155"></a><span class='hs-definition'>showCDataS</span> <span class='hs-varid'>cd</span> <span class='hs-keyglyph'>=</span>
<a name="line-156"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>cdVerbatim</span> <span class='hs-varid'>cd</span> <span class='hs-keyword'>of</span>
<a name="line-157"></a> <span class='hs-conid'>CDataText</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>escStr</span> <span class='hs-layout'>(</span><span class='hs-varid'>cdData</span> <span class='hs-varid'>cd</span><span class='hs-layout'>)</span>
<a name="line-158"></a> <span class='hs-conid'>CDataVerbatim</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>showString</span> <span class='hs-str'>"<![CDATA["</span> <span class='hs-varop'>.</span> <span class='hs-varid'>escCData</span> <span class='hs-layout'>(</span><span class='hs-varid'>cdData</span> <span class='hs-varid'>cd</span><span class='hs-layout'>)</span>
<a name="line-159"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>showString</span> <span class='hs-str'>"]]>"</span>
<a name="line-160"></a> <span class='hs-conid'>CDataRaw</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>cdData</span> <span class='hs-varid'>cd</span> <span class='hs-varop'>++</span> <span class='hs-varid'>xs</span>
<a name="line-161"></a>
<a name="line-162"></a><a name="escCData"></a><span class='hs-comment'>--------------------------------------------------------------------------------</span>
<a name="line-163"></a><span class='hs-definition'>escCData</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ShowS</span>
<a name="line-164"></a><span class='hs-definition'>escCData</span> <span class='hs-layout'>(</span><span class='hs-chr'>']'</span> <span class='hs-conop'>:</span> <span class='hs-chr'>']'</span> <span class='hs-conop'>:</span> <span class='hs-chr'>'>'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>cs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showString</span> <span class='hs-str'>"]]]]><![CDATA[>"</span> <span class='hs-varop'>.</span> <span class='hs-varid'>escCData</span> <span class='hs-varid'>cs</span>
<a name="line-165"></a><span class='hs-definition'>escCData</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-conop'>:</span> <span class='hs-varid'>cs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showChar</span> <span class='hs-varid'>c</span> <span class='hs-varop'>.</span> <span class='hs-varid'>escCData</span> <span class='hs-varid'>cs</span>
<a name="line-166"></a><span class='hs-definition'>escCData</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-167"></a>
<a name="line-168"></a><a name="escChar"></a><span class='hs-definition'>escChar</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ShowS</span>
<a name="line-169"></a><span class='hs-definition'>escChar</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>c</span> <span class='hs-keyword'>of</span>
<a name="line-170"></a> <span class='hs-chr'>'<'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>showString</span> <span class='hs-str'>"&lt;"</span>
<a name="line-171"></a> <span class='hs-chr'>'>'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>showString</span> <span class='hs-str'>"&gt;"</span>
<a name="line-172"></a> <span class='hs-chr'>'&'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>showString</span> <span class='hs-str'>"&amp;"</span>
<a name="line-173"></a> <span class='hs-chr'>'"'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>showString</span> <span class='hs-str'>"&quot;"</span>
<a name="line-174"></a> <span class='hs-comment'>-- we use &#39 instead of &apos; because IE apparently has difficulties</span>
<a name="line-175"></a> <span class='hs-comment'>-- rendering &apos; in xhtml.</span>
<a name="line-176"></a> <span class='hs-comment'>-- Reported by Rohan Drape <rohan.drape@gmail.com>.</span>
<a name="line-177"></a> <span class='hs-chr'>'\''</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>showString</span> <span class='hs-str'>"&#39;"</span>
<a name="line-178"></a>
<a name="line-179"></a> <span class='hs-comment'>-- NOTE: We escape '\r' explicitly because otherwise they get lost</span>
<a name="line-180"></a> <span class='hs-comment'>-- when parsed back in because of then end-of-line normalization rules.</span>
<a name="line-181"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isPrint</span> <span class='hs-varid'>c</span> <span class='hs-varop'>||</span> <span class='hs-varid'>c</span> <span class='hs-varop'>==</span> <span class='hs-chr'>'\n'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>showChar</span> <span class='hs-varid'>c</span>
<a name="line-182"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>showString</span> <span class='hs-str'>"&#"</span> <span class='hs-varop'>.</span> <span class='hs-varid'>shows</span> <span class='hs-varid'>oc</span> <span class='hs-varop'>.</span> <span class='hs-varid'>showChar</span> <span class='hs-chr'>';'</span>
<a name="line-183"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>oc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ord</span> <span class='hs-varid'>c</span>
<a name="line-184"></a>
<a name="line-185"></a><a name="escStr"></a><span class='hs-definition'>escStr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ShowS</span>
<a name="line-186"></a><span class='hs-definition'>escStr</span> <span class='hs-varid'>cs</span> <span class='hs-varid'>rs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldr</span> <span class='hs-varid'>escChar</span> <span class='hs-varid'>rs</span> <span class='hs-varid'>cs</span>
<a name="line-187"></a>
<a name="line-188"></a><a name="tagEnd"></a><span class='hs-definition'>tagEnd</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ShowS</span>
<a name="line-189"></a><span class='hs-definition'>tagEnd</span> <span class='hs-varid'>qn</span> <span class='hs-varid'>rs</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'<'</span><span class='hs-conop'>:</span><span class='hs-chr'>'/'</span><span class='hs-conop'>:</span><span class='hs-varid'>showQName</span> <span class='hs-varid'>qn</span> <span class='hs-varop'>++</span> <span class='hs-chr'>'>'</span><span class='hs-conop'>:</span><span class='hs-varid'>rs</span>
<a name="line-190"></a>
<a name="line-191"></a><a name="tagStart"></a><span class='hs-definition'>tagStart</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Attr</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ShowS</span>
<a name="line-192"></a><span class='hs-definition'>tagStart</span> <span class='hs-varid'>qn</span> <span class='hs-keyword'>as</span> <span class='hs-varid'>rs</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'<'</span><span class='hs-conop'>:</span><span class='hs-varid'>showQName</span> <span class='hs-varid'>qn</span> <span class='hs-varop'>++</span> <span class='hs-varid'>as_str</span> <span class='hs-varop'>++</span> <span class='hs-varid'>rs</span>
<a name="line-193"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>as_str</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-keyword'>as</span> <span class='hs-keyword'>then</span> <span class='hs-str'>""</span> <span class='hs-keyword'>else</span> <span class='hs-chr'>' '</span> <span class='hs-conop'>:</span> <span class='hs-varid'>unwords</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>showAttr</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span>
<a name="line-194"></a>
<a name="line-195"></a><a name="showAttr"></a><span class='hs-definition'>showAttr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Attr</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-196"></a><span class='hs-definition'>showAttr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Attr</span> <span class='hs-varid'>qn</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showQName</span> <span class='hs-varid'>qn</span> <span class='hs-varop'>++</span> <span class='hs-chr'>'='</span> <span class='hs-conop'>:</span> <span class='hs-chr'>'"'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>escStr</span> <span class='hs-varid'>v</span> <span class='hs-str'>"\""</span>
<a name="line-197"></a>
<a name="line-198"></a><a name="showQName"></a><span class='hs-definition'>showQName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>QName</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-199"></a><span class='hs-definition'>showQName</span> <span class='hs-varid'>q</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pre</span> <span class='hs-varop'>++</span> <span class='hs-varid'>qName</span> <span class='hs-varid'>q</span>
<a name="line-200"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>pre</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>qPrefix</span> <span class='hs-varid'>q</span> <span class='hs-keyword'>of</span>
<a name="line-201"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-str'>""</span>
<a name="line-202"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>p</span> <span class='hs-varop'>++</span> <span class='hs-str'>":"</span>
<a name="line-203"></a>
<a name="line-204"></a>
<a name="line-205"></a>
</pre></body>
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