xml - 递归排序 XML - 仅对内部节点进行排序

Question

我需要对示例 XML 进行排序，首先对所有 ShippingPoint 进行排序，然后根据其第一个 ShippingPoint 对 Cargos 进行排序，最后根据其第一个 Cargo 中的第一个 ShippingPoint 对 Transports 进行排序。所以基本上我试图根据它们应该开始的日期对所有传输进行排序。

现在，我找到了一个使用 XSL 递归的解决方案，除了只有 Cargos 和 ShippingPoints 按预期排序 - 最外部的 Transport 节点没有。我想知道我在这里做错了什么。 MSXML (VS2008) 和 Saxon 解析器都给了我完全相同的结果。

XML 代码示例:

<?xml version="1.0" encoding="utf-8"?>
<Transports>
    <Transport ID="1893">
        <Cargos>
            <Cargo ID="1532" >
                <ShippingPoints>
                    <ShippingPoint ID="1600" ArrivesOn="2011-04-07T12:00:00" />
                    <ShippingPoint ID="1601" ArrivesOn="2011-04-08T12:00:00" />
                </ShippingPoints>
            </Cargo>
            <Cargo ID="1532">
                <ShippingPoints>
                    <ShippingPoint ID="1601" ArrivesOn="2011-03-08T12:00:00" />
                    <ShippingPoint ID="1600" ArrivesOn="2011-02-07T12:00:00" />
                </ShippingPoints>
            </Cargo>
        </Cargos>
    </Transport>

    <Transport ID="1891" >
        <Cargos>
            <Cargo ID="1529" >
                <ShippingPoints>
                    <ShippingPoint ID="1594" ArrivesOn="2011-04-14T12:00:00" />
                    <ShippingPoint ID="1595" ArrivesOn="2011-04-04T13:00:00" />
                </ShippingPoints>
            </Cargo>
            <Cargo ID="1530" >
                <ShippingPoints>
                    <ShippingPoint ID="1597" ArrivesOn="2011-04-09T18:00:00" />
                    <ShippingPoint ID="1596" ArrivesOn="2011-04-04T12:00:00" />
                </ShippingPoints>
            </Cargo>
        </Cargos>
    </Transport>

    <Transport ID="1892">
        <Description/>
        <Cargos>
            <Cargo ID="1531" >
                <ShippingPoints>
                    <ShippingPoint ID="1599" ArrivesOn="2011-04-06T18:00:00" />
                    <ShippingPoint ID="1598" ArrivesOn="2011-04-05T12:00:00" />
                </ShippingPoints>
            </Cargo>
            <Cargo ID="1531" >
                <ShippingPoints>
                    <ShippingPoint ID="1599" ArrivesOn="2011-04-02T18:00:00" />
                    <ShippingPoint ID="1598" ArrivesOn="2011-04-03T12:00:00" />
                </ShippingPoints>
            </Cargo>
        </Cargos>
    </Transport>
</Transports>

XSLT 代码:

<?xml version="1.0" encoding="UTF-8"?>

<xsl:stylesheet version="2.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:xs="http://www.w3.org/2001/XMLSchema">

    <xsl:output method="xml" version="1.0" encoding="UTF-8" />

    <xsl:template match="@*|node()">
        <xsl:copy>
            <xsl:apply-templates select="@*|node()"/>
        </xsl:copy>
    </xsl:template>

    <xsl:template match="ShippingPoints">
        <xsl:copy>
            <xsl:apply-templates select="ShippingPoint">
                <xsl:sort select="@ArrivesOn" />
            </xsl:apply-templates>
        </xsl:copy>
    </xsl:template>

    <xsl:template match="Cargos">
        <xsl:copy>
            <xsl:apply-templates select="Cargo">
                <xsl:sort select="ShippingPoints/ShippingPoint[1]/@ArrivesOn" />
            </xsl:apply-templates>
        </xsl:copy>
    </xsl:template>

    <xsl:template match="Transports">
        <xsl:copy>
            <xsl:apply-templates select="Transport">
                <xsl:sort select="Cargos/Cargo[1]/ShippingPoints/ShippingPoint[1]/@ArrivesOn"/>
            </xsl:apply-templates>
        </xsl:copy>
    </xsl:template>
</xsl:stylesheet>

Answer 1

除非我不明白这一点，否则您正在寻找一种按最小值排序的 @ArrivesOn后裔。最短的样式表:

<xsl:stylesheet version="2.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xsl:template match="node()|@*">
        <xsl:copy>
            <xsl:copy-of select="@*"/>
            <xsl:apply-templates select="node()">
                <xsl:sort select="min(.//@ArrivesOn/xs:dateTime(.))"/>
            </xsl:apply-templates>
        </xsl:copy>
    </xsl:template>
</xsl:stylesheet>

输出:

<Transports>
    <Transport ID="1893">
        <Cargos>
            <Cargo ID="1532">
                <ShippingPoints>
                    <ShippingPoint ID="1600" ArrivesOn="2011-02-07T12:00:00"/>
                    <ShippingPoint ID="1601" ArrivesOn="2011-03-08T12:00:00"/>
                </ShippingPoints>
            </Cargo>
            <Cargo ID="1532">
                <ShippingPoints>
                    <ShippingPoint ID="1600" ArrivesOn="2011-04-07T12:00:00"/>
                    <ShippingPoint ID="1601" ArrivesOn="2011-04-08T12:00:00"/>
                </ShippingPoints>
            </Cargo>
        </Cargos>
    </Transport>
    <Transport ID="1892">
        <Description/>
        <Cargos>
            <Cargo ID="1531">
                <ShippingPoints>
                    <ShippingPoint ID="1599" ArrivesOn="2011-04-02T18:00:00"/>
                    <ShippingPoint ID="1598" ArrivesOn="2011-04-03T12:00:00"/>
                </ShippingPoints>
            </Cargo>
            <Cargo ID="1531">
                <ShippingPoints>
                    <ShippingPoint ID="1598" ArrivesOn="2011-04-05T12:00:00"/>
                    <ShippingPoint ID="1599" ArrivesOn="2011-04-06T18:00:00"/>
                </ShippingPoints>
            </Cargo>
        </Cargos>
    </Transport>
    <Transport ID="1891">
        <Cargos>
            <Cargo ID="1530">
                <ShippingPoints>
                    <ShippingPoint ID="1596" ArrivesOn="2011-04-04T12:00:00"/>
                    <ShippingPoint ID="1597" ArrivesOn="2011-04-09T18:00:00"/>
                </ShippingPoints>
            </Cargo>
            <Cargo ID="1529">
                <ShippingPoints>
                    <ShippingPoint ID="1595" ArrivesOn="2011-04-04T13:00:00"/>
                    <ShippingPoint ID="1594" ArrivesOn="2011-04-14T12:00:00"/>
                </ShippingPoints>
            </Cargo>
        </Cargos>
    </Transport>
</Transports>