检测docbook 5.0文档中的表格元素错误

我没有太多的运气在我的previous post中有完整的答案。所以我正在尝试一种不同的方法。检测docbook 5.0文档中的表格元素错误

如何将一个检测与table下面的DocBook文章中的错误：

$ cat article.xml 
<?xml version="1.0" encoding="utf-8" standalone="no"?> 
<article xmlns="http://docbook.org/ns/docbook" version="5.0"> 
    <title>Title</title> 
    <table> 
    <caption>caption</caption> 
    <tbody> 
     <tr> 
     <td rowspan="2"> 
      <para>my para</para> 
     </td> 
     </tr> 
    </tbody> 
    </table> 
</article>

很显然，因为我做了一个小的重复的例子，我知道那里的错误是我的输入DocBook文档中，我的问题是不是有关命令行工具可用于检测它们并有效地追踪它们（行号和可能的列偏移量）。

我只接受使用输入docbook 5.0（XML）文档或输入格式化对象（FO文件）来检测错误的答案。

答案应该在一系列命令行工具中明确（使用软件“X”不是可接受的答案）。

理想的情况下我会想我可以简单地运行：

$ xmllint --nonet --noout --schema /usr/share/xml/docbook/schema/xsd/5.0/docbook.xsd article.xml 
article.xml validates

或

$ jing /usr/share/xml/docbook/schema/rng/5.0/docbook.rng article.xml && echo "success" 
success

仅供参考这里就是我有我的Debian GNU/Linux系统上[*]

更新：我不是寻找所有可能的FO问题的一般解决方案，我只是寻找一种方式来跟踪我在冗长而复杂的元素中出现。

[*]

$ xsltproc -o article.fo /usr/share/xml/docbook/stylesheet/docbook-xsl/fo/docbook.xsl article.xml && fop article.fo article.pdf 
Note: namesp. cut : stripped namespace before processing   Additional Protocols 
Note: namesp. cut : processing stripped document     Additional Protocols 
Making portrait pages on USletter paper (8.5inx11in) 
[WARN] FOUserAgent - The following feature isn't implemented by Apache FOP, yet: table-layout="auto" (on fo:table) (See position 2:30164) 
[ERROR] FOP - Exception <org.apache.fop.apps.FOPException: org.apache.fop.fo.ValidationException: A table-cell is spanning more rows than available in its parent element. 
javax.xml.transform.TransformerException: org.apache.fop.fo.ValidationException: A table-cell is spanning more rows than available in its parent element.>org.apache.fop.apps.FOPException: org.apache.fop.fo.ValidationException: A table-cell is spanning more rows than available in its parent element. 
javax.xml.transform.TransformerException: org.apache.fop.fo.ValidationException: A table-cell is spanning more rows than available in its parent element. 
    at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:288) 
    at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:115) 
    at org.apache.fop.cli.Main.startFOP(Main.java:186) 
    at org.apache.fop.cli.Main.main(Main.java:217) 
Caused by: javax.xml.transform.TransformerException: org.apache.fop.fo.ValidationException: A table-cell is spanning more rows than available in its parent element. 
    at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:502) 
    at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:285) 
    ... 3 more 
Caused by: org.apache.fop.fo.ValidationException: A table-cell is spanning more rows than available in its parent element. 
    at org.apache.fop.fo.flow.table.FixedColRowGroupBuilder.endTablePart(FixedColRowGroupBuilder.java:183) 
    at org.apache.fop.fo.flow.table.VariableColRowGroupBuilder$6.play(VariableColRowGroupBuilder.java:107) 
    at org.apache.fop.fo.flow.table.VariableColRowGroupBuilder.endTable(VariableColRowGroupBuilder.java:116) 
    at org.apache.fop.fo.flow.table.Table.finalizeNode(Table.java:260) 
    at org.apache.fop.fo.FONode.endOfNode(FONode.java:330) 
    at org.apache.fop.fo.flow.table.Table.endOfNode(Table.java:243) 
    at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:360) 
    at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:190) 
    at org.apache.xalan.transformer.TransformerIdentityImpl.endElement(TransformerIdentityImpl.java:1102) 
    at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) 
    at org.apache.xerces.xinclude.XIncludeHandler.endElement(Unknown Source) 
    at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source) 
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) 
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) 
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) 
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) 
    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) 
    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) 
    at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) 
    at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:485) 
    ... 4 more 

--------- 

javax.xml.transform.TransformerException: org.apache.fop.fo.ValidationException: A table-cell is spanning more rows than available in its parent element. 
    at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:502) 
    at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:285) 
    at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:115) 
    at org.apache.fop.cli.Main.startFOP(Main.java:186) 
    at org.apache.fop.cli.Main.main(Main.java:217) 
Caused by: org.apache.fop.fo.ValidationException: A table-cell is spanning more rows than available in its parent element. 
    at org.apache.fop.fo.flow.table.FixedColRowGroupBuilder.endTablePart(FixedColRowGroupBuilder.java:183) 
    at org.apache.fop.fo.flow.table.VariableColRowGroupBuilder$6.play(VariableColRowGroupBuilder.java:107) 
    at org.apache.fop.fo.flow.table.VariableColRowGroupBuilder.endTable(VariableColRowGroupBuilder.java:116) 
    at org.apache.fop.fo.flow.table.Table.finalizeNode(Table.java:260) 
    at org.apache.fop.fo.FONode.endOfNode(FONode.java:330) 
    at org.apache.fop.fo.flow.table.Table.endOfNode(Table.java:243) 
    at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:360) 
    at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:190) 
    at org.apache.xalan.transformer.TransformerIdentityImpl.endElement(TransformerIdentityImpl.java:1102) 
    at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) 
    at org.apache.xerces.xinclude.XIncludeHandler.endElement(Unknown Source) 
    at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source) 
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) 
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) 
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) 
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) 
    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) 
    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) 
    at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) 
    at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:485) 
    ... 4 more 
--------- 
org.apache.fop.fo.ValidationException: A table-cell is spanning more rows than available in its parent element. 
    at org.apache.fop.fo.flow.table.FixedColRowGroupBuilder.endTablePart(FixedColRowGroupBuilder.java:183) 
    at org.apache.fop.fo.flow.table.VariableColRowGroupBuilder$6.play(VariableColRowGroupBuilder.java:107) 
    at org.apache.fop.fo.flow.table.VariableColRowGroupBuilder.endTable(VariableColRowGroupBuilder.java:116) 
    at org.apache.fop.fo.flow.table.Table.finalizeNode(Table.java:260) 
    at org.apache.fop.fo.FONode.endOfNode(FONode.java:330) 
    at org.apache.fop.fo.flow.table.Table.endOfNode(Table.java:243) 
    at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:360) 
    at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:190) 
    at org.apache.xalan.transformer.TransformerIdentityImpl.endElement(TransformerIdentityImpl.java:1102) 
    at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) 
    at org.apache.xerces.xinclude.XIncludeHandler.endElement(Unknown Source) 
    at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source) 
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) 
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) 
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) 
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) 
    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) 
    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) 
    at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) 
    at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:485) 
    at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:285) 
    at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:115) 
    at org.apache.fop.cli.Main.startFOP(Main.java:186) 
    at org.apache.fop.cli.Main.main(Main.java:217)

来源

2016-12-13 malat

请参阅http://stackoverflow.com/questions/18998498/validate-fo-file/19001319#19001319上的答案，并参阅https://www.oxygenxml.com/forum/topic7924.html#p24197：“The XSL-FO的问题在于没有工具可以完全正确地验证它。XML Schema无法指定XSL-FO输出文件中的所有约束...... *对我来说，最好的验证是将XSL-FO处理为PDF，从而让处理器在遇到*时发出警告和错误*。“尽管我意识到FOP的限制是不给出源中错误的行+列。 – sideshowbarker

您的示例表格不是CALS表格，但链接到http://tdg.docbook.org/tdg/5.0/cals.table.html。 – mzjn

我能想到的唯一工具是Schematron。使用Schematron规则来检测错误的跨度值可能是可能的。 – mzjn

我建议使用XSLT来检查您在XSL文件中定义的约束。

我刚准备这样的文件在所有td元素检测你提到的具体问题，您可以与xsltproc check-tables.xsl article.xml

<?xml version="1.0" encoding="utf-8"?> 
<xsl:stylesheet version="1.0" 
    xmlns:db="http://docbook.org/ns/docbook" 
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 
    <!-- Author: Alberto González Palomo http://sentido-labs.com 
     2016-12-24 00:20 --> 

    <!-- BEGIN checks --> 

    <xsl:template match="db:tbody"> 
    <xsl:variable name="row-count" select="count(db:tr)"/> 
    <xsl:for-each select=".//db:td[@rowspan]"> 
     <xsl:variable name="last-row-spanned" select="count(parent::db:tr/preceding-sibling::db:tr) + @rowspan"/> 
     <xsl:if test="$last-row-spanned &gt; $row-count"> 
     <xsl:call-template name="error"> 
      <!-- Optional in this case: 
       <xsl:with-param name="location" select="."/> 
      --> 
      <xsl:with-param name="message">A table-cell is spanning more rows than available in its parent element.</xsl:with-param> 
     </xsl:call-template> 
     </xsl:if> 
    </xsl:for-each> 
    </xsl:template> 

    <!-- END checks --> 


    <xsl:output method="text"/> 

    <xsl:template match="text()"><!-- Omit text content. --></xsl:template> 

    <xsl:template name="error"> 
    <xsl:param name="location" select="."/> 
    <xsl:param name="message">No error message available.</xsl:param> 

    <!-- To stop at the first error, set the attribute terminate="yes". 
     In xsltproc, this also causes the process to return a failure value. 
     --> 
    <xsl:message terminate="no"> 
     <xsl:text>Error: </xsl:text> 
     <xsl:call-template name="xpath"> 
     <xsl:with-param name="location" select="$location"/> 
     </xsl:call-template> 
     <xsl:text>: </xsl:text> 
     <xsl:value-of select="$message"/> 
    </xsl:message> 
    </xsl:template> 

    <xsl:template name="xpath"> 
    <xsl:param name="location" select="."/> 
    <xsl:for-each select="$location/parent::*"> 
     <xsl:call-template name="xpath"/> 
    </xsl:for-each> 

    <xsl:text>/</xsl:text> 
    <xsl:variable name="element-name" select="name($location)"/> 
    <xsl:value-of select="$element-name"/> 

    <xsl:variable name="preceding" select="count($location/preceding-sibling::*[name() = $element-name])"/> 
    <xsl:variable name="following" select="count($location/following-sibling::*[name() = $element-name])"/> 
    <xsl:if test="$preceding + $following &gt; 0"> 
     <xsl:text>[</xsl:text> 
     <xsl:value-of select="1 + $preceding"/> 
     <xsl:text>]</xsl:text> 
    </xsl:if> 
    </xsl:template> 

</xsl:stylesheet>

为"db:tbody"计数模板的行数可用运行，然后遍历具有一个@rowspan属性和如果该元素的位置和@rowspan的总和大于tr排在tbody的数量大输出错误消息：

Error: /article/table/tbody/tr/td : A table-cell is spanning more rows than available in its parent element.

您可以通过在"db:tbody"模板中添加更多检查或为其他元素编写新模板来扩展它，并且可以通过将模板拆分为单独的XSL文件并使用<xsl:import/>或<xsl:include/>将它们包括在内来对其进行模块化。

我们当然可以使用XPath支持的其他语言编写类似的程序，但您已经拥有了XSLT处理器。

来源

2016-12-23 22:50:20

'count（parent :: db：tr/preceding-sibling :: db：tr）'看起来不对因为你认为'@ rowspan'在这种情况下等于1。 – malat

@malat嗨，计数给出了问题之前的行数，然后我们得到了@ @ rowspan的值。所以，如果在这个之前有5行，而这个行的长度是3，那么最后一行的从1开始的索引将是5 + 3 = 8。 –

@malat再次，也许你的意思是表达式假定当前行之前的所有行都有一个行跨度。这很好，因为根据HTML标准[html]，行大于1的当前行上方的单元格不会将任何单元格向下推，而是向右。 '@ rowspan'不会在任何地方添加行，否则fop不会抱怨，只是添加任何额外的行。 [html] https://www.w3.org/TR/html401/struct/tables.html#h-11.2.6.1 –

检测docbook 5.0文档中的表格元素错误

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