【发布时间】：2016-05-22 15:35:49
【问题描述】：
好吧，我已经知道有一个关于此的文件，其中指出：
12.2.4.26 Relationships Transform Algorithm
13 The relationships transform takes the XML document from the Relationships part and converts it to another
14 XML document.
15 The package implementer might create relationships XML that contains content from several namespaces, along
16 with versioning instructions as defined in Part 5: “Markup Compatibility and Extensibility”. [O6.11]
17 The relationships transform algorithm is as follows:
18 Step 1: Process versioning instructions
19 1. The package implementer shall process the versioning instructions, considering that the only known
20 namespace is the Relationships namespace.
21 2. The package implementer shall remove all ignorable content, ignoring preservation attributes.
22 3. The package implementer shall remove all versioning instructions.
23 Step 2: Sort and filter relationships
24 1. The package implementer shall remove all namespace declarations except the Relationships namespace
25 declaration.
26 2. The package implementer shall remove the Relationships namespace prefix, if it is present.
27 3. The package implementer shall sort relationship elements by Id value in lexicographical order,
28 considering Id values as case-sensitive Unicode strings.
29 4. The package implementer shall remove all Relationship elements that do not have eitheran Id value
30 that matches any SourceId valueor a Type value that matches any SourceType value, among the
31 SourceId and SourceType values specified in the transform definition. Producers and consumers shall
32 compare values as case-sensitive Unicode strings. [M6.27] The resulting XML document holds all
33 Relationship elements that either have an Id value that matches a SourceId value or a Type value that
34 matches a SourceType value specified in the transform definition.
35 Step 3: Prepare for canonicalization
Digital Signatures
58
1. The package implementer shall remove all characters between the 1 Relationships start tag and the first
2 Relationship start tag.
3 2. The package implementer shall remove any contents of the Relationship element.
4 3. The package implementer shall remove all characters between the last Relationship end tag and the
5 Relationships end tag.
6 4. If there are no Relationship elements, the package implementer shall remove all characters between
7 the Relationships start tag and the Relationships end tag.
但是我在这个过程中有点困惑，因为在每次尝试中我都会重现不正确的转换，即使据说我已经遵守了文档中的所有规范，
如果这种转换只有一个示例（只有输入 => 输出），我可能不会那么困惑。所以这里唯一需要的是这样的 pacakage 特定 xml 函数的示例（或者可选地，带有答案和代码，虽然不是必需的，因为我已经开发了大部分。）
这是试图产生输出的标签：
<Reference URI="/Documents/1/Pages/_rels/1.fpage.rels?ContentType=application/vnd.openxmlformats-package.relationships+xml"><Transforms><Transform Algorithm="http://schemas.openxmlformats.org/package/2006/RelationshipTransform"><opc:RelationshipReference SourceId="rId1" /></Transform><Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" /></Transforms></Reference>
这是原始的关系文件：
<?xml version="1.0" encoding="utf-8"?><Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"><Relationship Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties" Target="/Documents/1/Pages/3.xml" Id="rId3" /><Relationship Type="http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties" Target="/Documents/1/Pages/2.xml" Id="rId2" /><Relationship Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="/Documents/1/Pages/1.xml" Id="rId1"/></Relationships>
这是（错误地）转换的：
<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"><Relationship Id="rId1" Target="/Documents/1/Pages/1.xml" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument"></Relationship></Relationships>
【问题讨论】：
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这是一个很长的镜头，但是您是否已经在 MSDN 上的“开放规范”论坛中问过：social.msdn.microsoft.com/Forums/en-US/home?forum=os_binaryfile ？他们倾向于更多地关注“对象模型”，但那里的人可能有一些见识。我会提到带有规范的“文档”的来源，以及您要转换的关系的软件。我不认识“目标”路径...
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这个问题已经被问过了：social.msdn.microsoft.com/Forums/en-US/… 但是提供的答案是模棱两可的，不幸的是不是很有帮助（OP 提到了 XAdes，但老实说它不是 XAdes 特定的）。