如何通过在XSLT1.0中首先复制具有特定属性的元素来更改顺序

Question

我想使用XLST 1.0来维护下面输入的层次结构，但要更改顺序，使其descrip节点具有属性@type=Bevorzugt的所有termGrp节点位于所有其他节点之前。

在我的预期输出中，这个变化可以被视为术语Immatrikulationsfrist，并且在第一个输入文件Einschreibefrist（原文如此）中被排序在Einschreibefrist之前。

我认为正确的方法是首先使用标识模板，但我无法确定如何在之后进行排序，以确保首先处理具有特定属性的元素。我看过<xsl:sort>，但我只是在学习，我不知道如何处理它，我真的很感激一些建议。

输入

<?xml version="1.0" encoding="utf-8" ?>
<mtf>
    <conceptGrp>
        <concept>371</concept>
        <transacGrp>
            <transac type="origination">
                LookUp Admin
            </transac>
            <date>
                2016-05-12T10:12:39
            </date>
        </transacGrp>
        <transacGrp>
            <transac type="modification">
                LookUp Admin
            </transac>
            <date>
                2016-05-12T10:12:39
            </date>
        </transacGrp>
        <descripGrp>
            <descrip type="Definition">The timespan during which you can enrol in a degree programme.</descrip>
        </descripGrp>
        <descripGrp>
            <descrip type="Status">freigegeben</descrip>
        </descripGrp>
        <languageGrp>
            <language lang="DE" type="German" />
            <descripGrp>
                <descrip type="Context">Nach Ablauf der Immatrikulationsfrist ist es nicht mehr möglich, sich für einen Studiengang einzuschreiben.</descrip>
            </descripGrp>
            <termGrp>
                <term>Einschreibefrist</term>
                <descripGrp>
                    <descrip type="Segmentation">Ein-schrei-be-frist</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Part of Speech">Noun</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Gender">f.</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Term Type">Variant</descrip>
                </descripGrp>
                <transacGrp>
                    <transac type="origination">
                        LookUp Admin
                    </transac>
                </transacGrp>
                <transacGrp>
                    <transac type="modification">
                        LookUp Admin
                    </transac>
                </transacGrp>
            </termGrp>
            <termGrp>
                <term>Immatrikulationsfrist</term>
                <descripGrp>
                    <descrip type="Segmentation">Im-ma-tri-ku-la-ti-ons-frist</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Part of Speech">Noun</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Gender">f.</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Term Type">fullForm</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Bevorzugt">1</descrip>
                </descripGrp>
                <transacGrp>
                    <transac type="origination">
                        LookUp Admin
                    </transac>
                </transacGrp>
                <transacGrp>
                    <transac type="modification">
                        LookUp Admin
                    </transac>
                </transacGrp>
            </termGrp>
        </languageGrp>
        <languageGrp>
            <language lang="EN" type="English" />
            <descripGrp>
                <descrip type="Context">Please make sure to transfer the semester fee before the enrolment deadline.</descrip>
            </descripGrp>
            <termGrp>
                <term>enrollment deadline</term>
                <descripGrp>
                    <descrip type="Segmentation">en-roll-ment dead-line</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Geographical Usage">AmE</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Part of Speech">Noun</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Term Type">fullForm</descrip>
                </descripGrp>
                <transacGrp>
                    <transac type="origination">
                        LookUp Admin
                    </transac>
                </transacGrp>
                <transacGrp>
                    <transac type="modification">
                        LookUp Admin
                    </transac>
                </transacGrp>
            </termGrp>
            <termGrp>
                <term>enrolment deadline</term>
                <descripGrp>
                    <descrip type="Segmentation">en-rol-ment dead-line</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Geographical Usage">BrE</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Part of Speech">Noun</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Term Type">fullForm</descrip>
                </descripGrp>
                <transacGrp>
                    <transac type="origination">
                        LookUp Admin
                    </transac>
                </transacGrp>
                <transacGrp>
                    <transac type="modification">
                        LookUp Admin
                    </transac>
                </transacGrp>
            </termGrp>
        </languageGrp>
    </conceptGrp>
</mtf>

预期输出

<?xml version="1.0" encoding="utf-8" ?>
<mtf>
    <conceptGrp>
        <concept>371</concept>
        <transacGrp>
            <transac type="origination">
                LookUp Admin
            </transac>
            <date>
                2016-05-12T10:12:39
            </date>
        </transacGrp>
        <transacGrp>
            <transac type="modification">
                LookUp Admin
            </transac>
            <date>
                2016-05-12T10:12:39
            </date>
        </transacGrp>
        <descripGrp>
            <descrip type="Definition">The timespan during which you can enrol in a degree programme.</descrip>
        </descripGrp>
        <descripGrp>
            <descrip type="Status">freigegeben</descrip>
        </descripGrp>
        <languageGrp>
            <language lang="DE" type="German" />
            <descripGrp>
                <descrip type="Context">Nach Ablauf der Immatrikulationsfrist ist es nicht mehr möglich, sich für einen Studiengang einzuschreiben.</descrip>
            </descripGrp>
            <termGrp>
                <term>Immatrikulationsfrist</term>
                <descripGrp>
                    <descrip type="Segmentation">Im-ma-tri-ku-la-ti-ons-frist</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Part of Speech">Noun</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Gender">f.</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Term Type">fullForm</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Bevorzugt">1</descrip>
                </descripGrp>
                <transacGrp>
                    <transac type="origination">
                        LookUp Admin
                    </transac>
                </transacGrp>
                <transacGrp>
                    <transac type="modification">
                        LookUp Admin
                    </transac>
                </transacGrp>
            </termGrp>
            <termGrp>
                <term>Einschreibefrist</term>
                <descripGrp>
                    <descrip type="Segmentation">Ein-schrei-be-frist</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Part of Speech">Noun</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Gender">f.</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Term Type">Variant</descrip>
                </descripGrp>
                <transacGrp>
                    <transac type="origination">
                        LookUp Admin
                    </transac>
                </transacGrp>
                <transacGrp>
                    <transac type="modification">
                        LookUp Admin
                    </transac>
                </transacGrp>
            </termGrp>
        </languageGrp>
        <languageGrp>
            <language lang="EN" type="English" />
            <descripGrp>
                <descrip type="Context">Please make sure to transfer the semester fee before the enrolment deadline.</descrip>
            </descripGrp>
            <termGrp>
                <term>enrollment deadline</term>
                <descripGrp>
                    <descrip type="Segmentation">en-roll-ment dead-line</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Geographical Usage">AmE</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Part of Speech">Noun</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Term Type">fullForm</descrip>
                </descripGrp>
                <transacGrp>
                    <transac type="origination">
                        LookUp Admin
                    </transac>
                </transacGrp>
                <transacGrp>
                    <transac type="modification">
                        LookUp Admin
                    </transac>
                </transacGrp>
            </termGrp>
            <termGrp>
                <term>enrolment deadline</term>
                <descripGrp>
                    <descrip type="Segmentation">en-rol-ment dead-line</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Geographical Usage">BrE</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Part of Speech">Noun</descrip>
                </descripGrp>
                <descripGrp>
                    <descrip type="Term Type">fullForm</descrip>
                </descripGrp>
                <transacGrp>
                    <transac type="origination">
                        LookUp Admin
                    </transac>
                </transacGrp>
                <transacGrp>
                    <transac type="modification">
                        LookUp Admin
                    </transac>
                </transacGrp>
            </termGrp>
        </languageGrp>
    </conceptGrp>
</mtf>

Answer 1

尝试以下操作：

XSLT 1.0

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>
<!-- identity transform -->
<xsl:template match="@*|node()">
    <xsl:copy>
        <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
</xsl:template>
<xsl:template match="languageGrp">
    <xsl:copy>
        <xsl:apply-templates select="*[not(self::termGrp)]"/>
        <xsl:apply-templates select="termGrp[descripGrp/descrip/@type='Bevorzugt']"/>
        <xsl:apply-templates select="termGrp[not(descripGrp/descrip/@type='Bevorzugt')]"/>
    </xsl:copy>
</xsl:template>
</xsl:stylesheet>

注意，这假设在languageGrp中，termGrp之后没有节点，否则这些节点将被移动到termGrp节点之前的新位置。