hxt-8.0.0: doc/hdoc/src/Text-XML-HXT-RelaxNG-PatternFunctions.html
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<pre><a name="line-1"></a><span class='comment'>-- | basic 'Pattern' functions</span>
<a name="line-2"></a><span class='comment'>--</span>
<a name="line-3"></a>
<a name="line-4"></a><span class='keyword'>module</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>RelaxNG</span><span class='varop'>.</span><span class='conid'>PatternFunctions</span>
<a name="line-5"></a>
<a name="line-6"></a><span class='keyword'>where</span>
<a name="line-7"></a>
<a name="line-8"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>RelaxNG</span><span class='varop'>.</span><span class='conid'>DataTypes</span>
<a name="line-9"></a>
<a name="line-10"></a>
<a name="line-11"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-12"></a>
<a name="line-13"></a><a name="isRelaxEmpty"></a><span class='definition'>isRelaxEmpty</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-14"></a><span class='definition'>isRelaxEmpty</span> <span class='conid'>Empty</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-15"></a><span class='definition'>isRelaxEmpty</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-16"></a>
<a name="line-17"></a><a name="isRelaxNotAllowed"></a><span class='definition'>isRelaxNotAllowed</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-18"></a><span class='definition'>isRelaxNotAllowed</span> <span class='layout'>(</span><span class='conid'>NotAllowed</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-19"></a><span class='definition'>isRelaxNotAllowed</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-20"></a>
<a name="line-21"></a><a name="isRelaxText"></a><span class='definition'>isRelaxText</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-22"></a><span class='definition'>isRelaxText</span> <span class='conid'>Text</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-23"></a><span class='definition'>isRelaxText</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-24"></a>
<a name="line-25"></a><a name="isRelaxChoice"></a><span class='definition'>isRelaxChoice</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-26"></a><span class='definition'>isRelaxChoice</span> <span class='layout'>(</span><span class='conid'>Choice</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-27"></a><span class='definition'>isRelaxChoice</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-28"></a>
<a name="line-29"></a><a name="isRelaxInterleave"></a><span class='definition'>isRelaxInterleave</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-30"></a><span class='definition'>isRelaxInterleave</span> <span class='layout'>(</span><span class='conid'>Interleave</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-31"></a><span class='definition'>isRelaxInterleave</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-32"></a>
<a name="line-33"></a><a name="isRelaxGroup"></a><span class='definition'>isRelaxGroup</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-34"></a><span class='definition'>isRelaxGroup</span> <span class='layout'>(</span><span class='conid'>Group</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-35"></a><span class='definition'>isRelaxGroup</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-36"></a>
<a name="line-37"></a><a name="isRelaxOneOrMore"></a><span class='definition'>isRelaxOneOrMore</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-38"></a><span class='definition'>isRelaxOneOrMore</span> <span class='layout'>(</span><span class='conid'>OneOrMore</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-39"></a><span class='definition'>isRelaxOneOrMore</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-40"></a>
<a name="line-41"></a><a name="isRelaxList"></a><span class='definition'>isRelaxList</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-42"></a><span class='definition'>isRelaxList</span> <span class='layout'>(</span><span class='conid'>List</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-43"></a><span class='definition'>isRelaxList</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-44"></a>
<a name="line-45"></a><a name="isRelaxData"></a><span class='definition'>isRelaxData</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-46"></a><span class='definition'>isRelaxData</span> <span class='layout'>(</span><span class='conid'>Data</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-47"></a><span class='definition'>isRelaxData</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-48"></a>
<a name="line-49"></a><a name="isRelaxDataExcept"></a><span class='definition'>isRelaxDataExcept</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-50"></a><span class='definition'>isRelaxDataExcept</span> <span class='layout'>(</span><span class='conid'>DataExcept</span> <span class='keyword'>_</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-51"></a><span class='definition'>isRelaxDataExcept</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-52"></a>
<a name="line-53"></a><a name="isRelaxValue"></a><span class='definition'>isRelaxValue</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-54"></a><span class='definition'>isRelaxValue</span> <span class='layout'>(</span><span class='conid'>Value</span> <span class='keyword'>_</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-55"></a><span class='definition'>isRelaxValue</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-56"></a>
<a name="line-57"></a><a name="isRelaxAttribute"></a><span class='definition'>isRelaxAttribute</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-58"></a><span class='definition'>isRelaxAttribute</span> <span class='layout'>(</span><span class='conid'>Attribute</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-59"></a><span class='definition'>isRelaxAttribute</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-60"></a>
<a name="line-61"></a><a name="isRelaxElement"></a><span class='definition'>isRelaxElement</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-62"></a><span class='definition'>isRelaxElement</span> <span class='layout'>(</span><span class='conid'>Element</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-63"></a><span class='definition'>isRelaxElement</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-64"></a>
<a name="line-65"></a><a name="isRelaxAfter"></a><span class='definition'>isRelaxAfter</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-66"></a><span class='definition'>isRelaxAfter</span> <span class='layout'>(</span><span class='conid'>After</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='conid'>True</span>
<a name="line-67"></a><span class='definition'>isRelaxAfter</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>False</span>
<a name="line-68"></a>
<a name="line-69"></a>
<a name="line-70"></a><a name="getChildrenPattern"></a><span class='comment'>-- | Returns a list of children pattern for each pattern, </span>
<a name="line-71"></a><span class='comment'>-- e.g. (Choice p1 p2) = [p1, p2]</span>
<a name="line-72"></a><span class='definition'>getChildrenPattern</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='keyglyph'>[</span><span class='conid'>Pattern</span><span class='keyglyph'>]</span>
<a name="line-73"></a><span class='definition'>getChildrenPattern</span> <span class='layout'>(</span><span class='conid'>Choice</span> <span class='varid'>p1</span> <span class='varid'>p2</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='varid'>p1</span><span class='layout'>,</span> <span class='varid'>p2</span><span class='keyglyph'>]</span>
<a name="line-74"></a><span class='definition'>getChildrenPattern</span> <span class='layout'>(</span><span class='conid'>Interleave</span> <span class='varid'>p1</span> <span class='varid'>p2</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='varid'>p1</span><span class='layout'>,</span> <span class='varid'>p2</span><span class='keyglyph'>]</span>
<a name="line-75"></a><span class='definition'>getChildrenPattern</span> <span class='layout'>(</span><span class='conid'>Group</span> <span class='varid'>p1</span> <span class='varid'>p2</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='varid'>p1</span><span class='layout'>,</span> <span class='varid'>p2</span><span class='keyglyph'>]</span>
<a name="line-76"></a><span class='definition'>getChildrenPattern</span> <span class='layout'>(</span><span class='conid'>OneOrMore</span> <span class='varid'>p</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='varid'>p</span><span class='keyglyph'>]</span>
<a name="line-77"></a><span class='definition'>getChildrenPattern</span> <span class='layout'>(</span><span class='conid'>List</span> <span class='varid'>p</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='varid'>p</span><span class='keyglyph'>]</span>
<a name="line-78"></a><span class='definition'>getChildrenPattern</span> <span class='layout'>(</span><span class='conid'>Element</span> <span class='keyword'>_</span> <span class='varid'>p</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='varid'>p</span><span class='keyglyph'>]</span>
<a name="line-79"></a><span class='definition'>getChildrenPattern</span> <span class='layout'>(</span><span class='conid'>DataExcept</span> <span class='keyword'>_</span> <span class='keyword'>_</span> <span class='varid'>p</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='varid'>p</span><span class='keyglyph'>]</span>
<a name="line-80"></a><span class='definition'>getChildrenPattern</span> <span class='layout'>(</span><span class='conid'>Attribute</span> <span class='keyword'>_</span> <span class='varid'>p</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='varid'>p</span><span class='keyglyph'>]</span>
<a name="line-81"></a><span class='definition'>getChildrenPattern</span> <span class='layout'>(</span><span class='conid'>After</span> <span class='varid'>p1</span> <span class='varid'>p2</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='varid'>p1</span><span class='layout'>,</span> <span class='varid'>p2</span><span class='keyglyph'>]</span>
<a name="line-82"></a><span class='definition'>getChildrenPattern</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>[]</span>
<a name="line-83"></a>
<a name="line-84"></a>
<a name="line-85"></a><a name="getNameClassFromPattern"></a><span class='comment'>-- | Returns the nameclass of a element- or attribute pattern.</span>
<a name="line-86"></a><span class='comment'>-- Otherwise 'NCError' is returned.</span>
<a name="line-87"></a><span class='definition'>getNameClassFromPattern</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>NameClass</span>
<a name="line-88"></a><span class='definition'>getNameClassFromPattern</span> <span class='layout'>(</span><span class='conid'>Element</span> <span class='varid'>nc</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='varid'>nc</span>
<a name="line-89"></a><span class='definition'>getNameClassFromPattern</span> <span class='layout'>(</span><span class='conid'>Attribute</span> <span class='varid'>nc</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='varid'>nc</span>
<a name="line-90"></a><span class='definition'>getNameClassFromPattern</span> <span class='keyword'>_</span> <span class='keyglyph'>=</span> <span class='conid'>NCError</span> <span class='str'>"Pattern without a NameClass"</span>
<a name="line-91"></a>
<a name="line-92"></a>
<a name="line-93"></a><a name="getPatternName"></a><span class='comment'>-- | Returns a string representation of the pattern name</span>
<a name="line-94"></a><span class='definition'>getPatternName</span> <span class='keyglyph'>::</span> <span class='conid'>Pattern</span> <span class='keyglyph'>-></span> <span class='conid'>String</span>
<a name="line-95"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>Empty</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"Empty"</span>
<a name="line-96"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>NotAllowed</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"NotAllowed"</span>
<a name="line-97"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>Text</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"Text"</span>
<a name="line-98"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>Choice</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"Choice"</span>
<a name="line-99"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>Interleave</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"Interleave"</span>
<a name="line-100"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>Group</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"Group"</span>
<a name="line-101"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>OneOrMore</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"OneOrMore"</span>
<a name="line-102"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>List</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"List"</span>
<a name="line-103"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>Data</span> <span class='keyword'>_</span> <span class='keyword'>_</span> <span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"Data"</span>
<a name="line-104"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>DataExcept</span> <span class='keyword'>_</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"DataExcept"</span>
<a name="line-105"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>Value</span> <span class='keyword'>_</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"Value"</span>
<a name="line-106"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>Attribute</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"Attribute"</span>
<a name="line-107"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>Element</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"Element"</span>
<a name="line-108"></a><span class='definition'>getPatternName</span> <span class='layout'>(</span><span class='conid'>After</span> <span class='keyword'>_</span> <span class='keyword'>_</span><span class='layout'>)</span> <span class='keyglyph'>=</span> <span class='str'>"After"</span>
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