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ghc-tagsoup-devel-0.12-4.fc14.i686.rpm

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<title>Text/HTML/TagSoup/Options.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable #-}</span>
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<a name="line-3"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>HTML</span><span class='hs-varop'>.</span><span class='hs-conid'>TagSoup</span><span class='hs-varop'>.</span><span class='hs-conid'>Options</span> <span class='hs-keyword'>where</span>
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<a name="line-5"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Typeable</span>
<a name="line-6"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>HTML</span><span class='hs-varop'>.</span><span class='hs-conid'>TagSoup</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span>
<a name="line-7"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>HTML</span><span class='hs-varop'>.</span><span class='hs-conid'>TagSoup</span><span class='hs-varop'>.</span><span class='hs-conid'>Entity</span>
<a name="line-8"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>StringLike</span>
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<a name="line-11"></a><a name="ParseOptions"></a><span class='hs-comment'>-- | These options control how 'parseTags' works.</span>
<a name="line-12"></a><a name="ParseOptions"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ParseOptions</span> <span class='hs-varid'>str</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ParseOptions</span>
<a name="line-13"></a>    <span class='hs-layout'>{</span><span class='hs-varid'>optTagPosition</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-comment'>-- ^ Should 'TagPosition' values be given before some items (default=False,fast=False)</span>
<a name="line-14"></a>    <span class='hs-layout'>,</span><span class='hs-varid'>optTagWarning</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span>  <span class='hs-comment'>-- ^ Should 'TagWarning' values be given (default=False,fast=False)</span>
<a name="line-15"></a>    <span class='hs-layout'>,</span><span class='hs-varid'>optEntityData</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>str</span><span class='hs-layout'>,</span><span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Tag</span> <span class='hs-varid'>str</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- ^ How to lookup an entity (Bool = has ending @';'@)</span>
<a name="line-16"></a>    <span class='hs-layout'>,</span><span class='hs-varid'>optEntityAttrib</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>str</span><span class='hs-layout'>,</span><span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>str</span><span class='hs-layout'>,</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>Tag</span> <span class='hs-varid'>str</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- ^ How to lookup an entity in an attribute (Bool = has ending @';'@?)</span>
<a name="line-17"></a>    <span class='hs-layout'>,</span><span class='hs-varid'>optTagTextMerge</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-comment'>-- ^ Require no adjacent 'TagText' values (default=True,fast=False)</span>
<a name="line-18"></a>    <span class='hs-layout'>}</span>
<a name="line-19"></a>    <span class='hs-keyword'>deriving</span> <span class='hs-conid'>Typeable</span>
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<a name="line-22"></a><a name="parseOptions"></a><span class='hs-comment'>-- | The default parse options value, described in 'ParseOptions'.</span>
<a name="line-23"></a><span class='hs-definition'>parseOptions</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StringLike</span> <span class='hs-varid'>str</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ParseOptions</span> <span class='hs-varid'>str</span>
<a name="line-24"></a><span class='hs-definition'>parseOptions</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ParseOptions</span> <span class='hs-conid'>False</span> <span class='hs-conid'>False</span> <span class='hs-varid'>entityData</span> <span class='hs-varid'>entityAttrib</span> <span class='hs-conid'>True</span>
<a name="line-25"></a>    <span class='hs-keyword'>where</span>
<a name="line-26"></a>        <span class='hs-varid'>entityData</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TagText</span> <span class='hs-varid'>a</span> <span class='hs-conop'>:</span> <span class='hs-varid'>b</span>
<a name="line-27"></a>            <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>entityAttrib</span> <span class='hs-varid'>x</span>
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<a name="line-29"></a>        <span class='hs-varid'>entityAttrib</span> <span class='hs-keyglyph'>~</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookupEntity</span> <span class='hs-varid'>y</span> <span class='hs-keyword'>of</span>
<a name="line-30"></a>            <span class='hs-conid'>Just</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromChar</span> <span class='hs-varid'>y</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-31"></a>            <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromString</span> <span class='hs-varop'>$</span> <span class='hs-str'>"&amp;"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>y</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-chr'>';'</span><span class='hs-keyglyph'>|</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>TagWarning</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fromString</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Unknown entity: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>y</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-32"></a>            <span class='hs-keyword'>where</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toString</span> <span class='hs-varid'>x</span>
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<a name="line-35"></a><a name="parseOptionsFast"></a><span class='hs-comment'>-- | A 'ParseOptions' structure optimised for speed, following the fast options.</span>
<a name="line-36"></a><span class='hs-definition'>parseOptionsFast</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StringLike</span> <span class='hs-varid'>str</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ParseOptions</span> <span class='hs-varid'>str</span>
<a name="line-37"></a><span class='hs-definition'>parseOptionsFast</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parseOptions</span><span class='hs-layout'>{</span><span class='hs-varid'>optTagTextMerge</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>False</span><span class='hs-layout'>}</span>
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<a name="line-40"></a><a name="fmapParseOptions"></a><span class='hs-comment'>-- | Change the underlying string type of a 'ParseOptions' value.</span>
<a name="line-41"></a><span class='hs-definition'>fmapParseOptions</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>StringLike</span> <span class='hs-varid'>from</span><span class='hs-layout'>,</span> <span class='hs-conid'>StringLike</span> <span class='hs-varid'>to</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ParseOptions</span> <span class='hs-varid'>from</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ParseOptions</span> <span class='hs-varid'>to</span>
<a name="line-42"></a><span class='hs-definition'>fmapParseOptions</span> <span class='hs-layout'>(</span><span class='hs-conid'>ParseOptions</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-varid'>c</span> <span class='hs-varid'>d</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ParseOptions</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-varid'>c2</span> <span class='hs-varid'>d2</span> <span class='hs-varid'>e</span>
<a name="line-43"></a>    <span class='hs-keyword'>where</span>
<a name="line-44"></a>        <span class='hs-varid'>c2</span> <span class='hs-keyglyph'>~</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>castString</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>c</span> <span class='hs-layout'>(</span><span class='hs-varid'>castString</span> <span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-45"></a>        <span class='hs-varid'>d2</span> <span class='hs-keyglyph'>~</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>castString</span> <span class='hs-varid'>r</span><span class='hs-layout'>,</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>castString</span><span class='hs-layout'>)</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-46"></a>            <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-varid'>r</span><span class='hs-layout'>,</span><span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>d</span> <span class='hs-layout'>(</span><span class='hs-varid'>castString</span> <span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
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