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<div class="header"> |
<div class="header"> |
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<h1>manakai's <abbr>XML</abbr> Conformance Checking</h1> |
<h1>manakai's <abbr>XML</abbr> Conformance Checking</h1> |
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<h2>Working Draft <time datetime=2008-03-16>16 March 2008</time></h2> |
<h2>Working Draft <time datetime=2008-03-29>29 March 2008</time></h2> |
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<dl class="versions-uri"> |
<dl class="versions-uri"> |
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<dt>This Version</dt> |
<dt>This Version</dt> |
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|
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<p>When an <abbr>XML</abbr> document is parsed, the following clauses |
<p>When an <abbr>XML</abbr> document is parsed, the following clauses |
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are applied:</p> |
are applied:</p> |
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<dl> |
<dl class=switch> |
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<dt>For each document |
<dt>For the document |
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<dd>If the <abbr>XML</abbr> document does not begin with an |
<dd>If the <abbr>XML</abbr> document does not begin with an |
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<abbr>XML</abbr> declaration, then the parser <em class=rfc2119>MUST</em> |
<abbr>XML</abbr> declaration, then the parser <em class=rfc2119>MUST</em> |
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raise an |
raise an |
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<a href="#xml-misc-recommentation" id=xmr-xml-decl><code>xml-misc-recommendation</code></a>. |
<a href="#xml-misc-recommentation" id=xmr-xml-decl><code>xml-misc-recommendation</code></a>. |
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<dt>For each internal general entity declaration processed by the parser |
<dt>For the document type declaration |
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<dd class=ed>@@ read external entity |
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<dt>For each internal general entity declaration being processed by the parser |
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<dd>If the |
<dd>If the |
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<a href="http://www.w3.org/TR/2006/REC-xml-20060816/#NT-EntityValue"><code>EntityValue</code></a> |
<a href="http://www.w3.org/TR/2006/REC-xml-20060816/#NT-EntityValue"><code>EntityValue</code></a> |
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part of the general entity declaration contains a bare <code>U+003C</code> |
part of the general entity declaration contains a bare <code>U+003C</code> |
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<a href="#xml-misc-warning" id=xmw-entity-value-lt><code>xml-misc-warning</code></a>.<!-- |
<a href="#xml-misc-warning" id=xmw-entity-value-lt><code>xml-misc-warning</code></a>.<!-- |
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"strongly advised to avoid" in a Note in Section 2.3 of [XML10], [XML11]. |
"strongly advised to avoid" in a Note in Section 2.3 of [XML10], [XML11]. |
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--> |
--> |
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<dt>For each element type declaration processed by the parser |
<dt>For each element type declaration being processed by the parser |
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<dd>If there is another element type declaration whose <code>Name</code> |
<dd>If there is another processed element type declaration whose |
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is equal to the <code>Name</code> of the element type declaration, then |
<code>Name</code> is equal to the <code>Name</code> of the element type |
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the parser <em class=rfc2119>MUST</em> raise an |
declaration, then the parser <em class=rfc2119>MUST</em> raise an |
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<a href="#xml-validity-error" id=vc-edunique><code>xml-validity-error</code></a>. |
<a href="#xml-validity-error" id=vc-edunique><code>xml-validity-error</code></a>. |
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|
<dt>For each attribute definition list declaration being processed by the |
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parser |
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<dd>If there is another processed attribute defintion list declaration whose |
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<code>Name</code> is equal to the <code>Name</code> of the attribute |
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definition list declaration, then the parser <em class=rfc2119>MUST</em> |
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raise an |
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<a href="#xml-misc-warning" id=xme-attlist-unique><code>xml-misc-warning</code></a>. |
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<dd>For each attribute definition in the attribute definition list |
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declaration, if there is another processed attribute definition whose |
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<code>Name</code> is equal to the <code>Name</code> of the attribute |
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definition (whether or not in the same attribute definition list |
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declaration), then the parser <em class=rfc2119>MUST</em> raise an |
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<a href="#xml-misc-warning" id=xme-attrdef-unique><code>xml-misc-warning</code></a>. |
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<!-- |
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<q>For interoperability, an XML processor <em class=rfc2119>MAY</em> at |
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user option issue a warning when more than one attribute-list declaration |
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is provided for a given element type, or more than one attribute definition |
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is provided for a given attribute, but this is not an error.</q> |
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--> |
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<!-- |
<!-- |
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NOTE: <!ATTLIST a xml:space (default) #IMPLIED xml:space CDATA #IMPLIED> |
NOTE: <!ATTLIST a xml:space (default) #IMPLIED xml:space CDATA #IMPLIED> |
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will not be warned. |
will not be warned. |
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--> |
--> |
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<dt>For each entity declaration being processed by the parser |
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<dd>If the entity declaration declares a parameter entity and the |
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<code>Name</code> of the entity begins with the string <code>xml</code> |
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(in any combination of upper- and lowercase letters), then the parser |
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<em class=rfc2119>MUST</em> raise an |
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<a href="#xml-misc-warning" id=xmw-reserved-pe-name><code>xml-misc-warning</code></a>. |
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<dd>If the entity declaration contains the <code>EntityValue</code>, then |
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for each occurence of any references to unparsed entities in the |
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<code>EntityValue</code>, the parser <em class=rfc2119>MUST</em> raise an |
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<a href="#xml-misc-error" id=xme-unparsed-in-ev><code>xml-misc-error</code></a>. |
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<!-- |
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<q>It is an error for a reference to an unparsed entity to appear in the |
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EntityValue in an entity declaration.</q> |
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--> |
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<dt>For each notation declaration being processed by the parser |
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<dd>If there is another processed notation declaration whose |
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<code>Name</code> is equal to the <code>Name</code> of the notation |
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declaration, then the parser <em class=rfc2119>MUST</em> raise an |
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<a href="#xml-validity-error" id=vc-uniquenotationname><code>xml-validity-error</code></a>. |
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<!-- <a href="http://www.w3.org/TR/2006/REC-xml-20060816/#UniqueNotationName">Validity constraint: Unique Notation Name</a> --> |
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<dt>For each empty-element tag |
<dt>For each empty-element tag |
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<dd>If the <code>Name</code> of the tag is not declared by a processed |
<dd>If the <code>Name</code> of the tag is not declared by a processed |
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element type declaration as <code>EMPTY</code> content, then the parser |
element type declaration as <code>EMPTY</code> content, then the parser |
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type declaration as <code>EMPTY</code> content, then the parser |
type declaration as <code>EMPTY</code> content, then the parser |
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<em class=rfc2119>MUST</em> raise an |
<em class=rfc2119>MUST</em> raise an |
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<a href="#xml-misc-recommentation" id=xmr-empty-not-emptyelemtag><code>xml-misc-recommendation</code></a>. |
<a href="#xml-misc-recommentation" id=xmr-empty-not-emptyelemtag><code>xml-misc-recommendation</code></a>. |
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<dt>For each parameter entity reference |
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<dd>If the declaration for the entity is not read (i.e. no declaration |
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for the entity is processed or the external entity referenced by the |
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declaration cannot be retrieved), then: |
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<ul> |
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<li>If the parameter entity is contained in a declaration, then the |
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declaration <em class=rfc2119>MUST</em> be ignored <em>except</em> that |
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any error before the parameter entity <em class=rfc2119>MUST</em> be |
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raised as usual. |
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<li>If the parameter entity is contained in the status portion of a |
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conditional section, then the conditional section |
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<em class=rfc2119>MUST</em> be processed as if it were an |
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<code>IGNORE</code>d section. |
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<li>The parser <em class=rfc2119>MUST NOT</em> process any entity or |
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attribute-list declaration after the parameter entity reference in the DTD |
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<em>except</em> when the <code>standalone</code> pseudo-attribute of the |
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XML declaration (if any) is set to <code>yes</code>. |
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<!-- This requirement is enforced for internal DTD subset case in |
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XML 1.0/1.1 specification (section 5.1) but not for any other cases. --> |
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<!-- According to this definition, element type declarations, notation |
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declarations, and PIs ARE processed. --> |
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<li>If the parameter entity reference is the first reference to an entity |
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that is not read, then the parser <em class=rfc2119>MUST</em> raise an |
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<a href="#entity-error" id=ee-unread-pe><code>entity-error</code></a>. |
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<li>The <code>allDeclarationsProcessed</code> <span class=ed>@@ ref</span> |
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attribute of the <code>Document</code> node <em class=rfc2119>MUST</em> be |
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set to <code>false</code>. |
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</ul> |
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<dt>For each general entity reference in an attribute value or in the content |
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of an element |
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<dd>If the declaration for the entity is not read (i.e. no declaration for |
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the entity is processed or the external entity referenced by the declaration |
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cannot be retrieved), then: |
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<ul> |
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<li>If the general entity reference is the first reference to an entity |
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that is not read, then the parser <em class=rfc2119>MUST</em> raise an |
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<a href="#entity-error" id=ee-unread-ge><code>entity-error</code></a>. |
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<span class=ed>@@ entity declared WFC?</span> |
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<li class=ed>An unexpended entity reference node <em class=rfc2119>MUST</em> be inserted to the current node. |
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</ul> |
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</dl> |
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<p class=ed>@@ MUST try to read external entity |
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<p>In addition, the parser has to check whether the |
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following constraints are met. |
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<p><strong>Well-formedness constraints</strong>. For each violation to |
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one of constraints below, an |
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<a href="#xml-well-formedness-error"><code>xml-well-formedness-error</code></a> |
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<em class=rfc2119>MUST</em> be raised. The list of well-formedness |
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constraints is below: |
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<ul> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#wfc-PEinInternalSubset">Well-formedness constraint: PEs in Internal Subset</a> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#GIMatch">Well-formedness constraint: Element Type Match</a> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#uniqattspec">Well-formedness constraint: Unique Att Spec</a> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#NoExternalRefs">Well-formedness constraint: No External Entity References</a> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#CleanAttrVals">Well-formedness constraint: No < in Attribute Values</a> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#wf-Legalchar">Well-formedness constraint: Legal Character</a> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#textent">Well-formedness constraint: Parsed Entity</a> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#norecursion">Well-formedness constraint: No Recursion</a> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#indtd">Well-formedness constraint: In DTD</a> |
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</ul> |
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<p><strong>Validity constraints</strong>. For each violation to |
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one of constraints below, an |
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<a href="#xml-validity-error"><code>xml-validity-error</code></a>. |
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<em class=rfc2119>MUST</em> be raised. The list of validity |
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constraints is below: |
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<ul> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#vc-PEinMarkupDecl">Validity constraint: Proper Declaration/PE Nesting</a> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#vc-PEinGroup">Validity constraint: Proper Group/PE Nesting</a> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#condsec-nesting">Validity constraint: Proper Conditional Section/PE Nesting</a> |
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</ul> |
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<p><strong>Other creteria</strong>. For each violation to |
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one of constraints below, an |
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<a href="#xml-misc-recommendation"><code>xml-misc-recommendation</code></a> |
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<em class=rfc2119>MUST</em> be raised. The list of constraints is below: |
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<ul> |
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<li><q>For interoperability, if a parameter-entity reference appears in a |
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<code>choice</code>, <code>seq</code>, or <code>Mixed</code> construct, its |
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replacement text <em class=rfc2119>SHOULD</em> contain at least one non-blank |
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character, and neither the first nor last non-blank character of the |
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replacement text <em class=rfc2119>SHOULD</em> be a connector (<code>|</code> |
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or <code>,</code>).</q> |
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<li><q>External parsed entities <em class=rfc2119>SHOULD</em> each begin with a |
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text declaration.</q> |
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</ul> |
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<!-- |
<!-- |
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#vc-PEinMarkupDecl Validity constraint: Proper Declaration/PE Nesting |
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#wfc-PEinInternalSubset Well-formedness constraint: PEs in Internal Subset |
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#ExtSubset Well-formedness constraint: External Subset |
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#PE-between-Decls Well-formedness constraint: PE Between Declarations |
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#GIMatch Well-formedness constraint: Element Type Match |
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#uniqattspec Well-formedness constraint: Unique Att Spec |
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#NoExternalRefs Well-formedness constraint: No External Entity References |
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#CleanAttrVals Well-formedness constraint: No < in Attribute Values |
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#vc-PEinGroup Validity constraint: Proper Group/PE Nesting |
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"For interoperability, if a parameter-entity reference appears in a choice, seq, or Mixed construct, its replacement text SHOULD contain at least one non-blank character, and neither the first nor last non-blank character of the replacement text SHOULD be a connector (| or ,)." |
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"For interoperability, an XML processor MAY at user option issue a warning when more than one attribute-list declaration is provided for a given element type, or more than one attribute definition is provided for a given attribute, but this is not an error." |
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#condsec-nesting Validity constraint: Proper Conditional Section/PE Nesting |
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#wf-Legalchar Well-formedness constraint: Legal Character |
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#textent Well-formedness constraint: Parsed Entity |
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#norecursion Well-formedness constraint: No Recursion |
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#indtd Well-formedness constraint: In DTD |
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"External parsed entities SHOULD each begin with a text declaration." |
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"It is an error for a reference to an unparsed entity to appear in the EntityValue in an entity declaration." |
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#UniqueNotationName Validity constraint: Unique Notation Name |
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|
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@@ Need detailed review, but maybe should be in parsing phase |
@@ Need detailed review, but maybe should be in parsing phase |
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|
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left undefined. For example: Comment must be converted to a Comment node, |
left undefined. For example: Comment must be converted to a Comment node, |
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illegal xml:space value must be preserved, so on. |
illegal xml:space value must be preserved, so on. |
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Warn <!ENTITY % xml... ...> |
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|
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--> |
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|
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<p>The parser <em class=rfc2119>MUST</em> raise an |
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<a href="#xml-well-formedness-error" id=wfe-syntax><code>xml-well-formedness-error</code></a> |
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for any failure to match to a production rule in the XML specification. |
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<!-- |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#ExtSubset">Well-formedness constraint: External Subset</a> |
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<li><a href="http://www.w3.org/TR/2006/REC-xml-20060816/#PE-between-Decls">Well-formedness constraint: PE Between Declarations</a> |
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--> |
--> |
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</dl> |
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</div> |
</div> |
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|
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<div class="section" id=checking-dom> |
<div class="section" id=checking-dom> |
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case combination), then raise an |
case combination), then raise an |
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<a href="#xml-misc-warning" id=xmw-reserved-name><code>xml-misc-warning</code></a>. |
<a href="#xml-misc-warning" id=xmw-reserved-name><code>xml-misc-warning</code></a>. |
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<span class=ed>@@ except for attribute names <code>xml:lang</code>, |
<span class=ed>@@ except for attribute names <code>xml:lang</code>, |
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<code>xml:space</code>, <code>xml:base</code>, <code>xml:id</code>, |
<code>xml:space</code><!--, <code>xml:base</code>, <code>xml:id</code>, |
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<code>xmlns</code>, <code>xmlns:<var>*</var></code>, |
<code>xmlns</code>, <code>xmlns:<var>*</var></code>, |
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pi name <code>xml-stylesheet</code>.</span><!-- |
pi name <code>xml-stylesheet</code>-->.</span><!-- |
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"names beginning with a match to (('X'|'x')('M'|'m')('L'|'l')) are reserved for standardization in this or future versions of this specification.": |
"names beginning with a match to (('X'|'x')('M'|'m')('L'|'l')) are reserved for standardization in this or future versions of this specification.": |
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xmlns, xml-stylesheet, xml:base and xml:id specifications violate to this sentense! |
xmlns, xml-stylesheet, xml:base and xml:id specifications violate to this sentense! |
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--></li> |
--></li> |