XSLT：檢查屬性是否存在

Question

長時間潛伏者，第一次海報。

我試圖建立一個XSLT文件：如果一個節點存在

1. 檢查，如果它不爲「0」

2. 如果填寫了節點不存在，檢查，以確保每一個屬性存在，以及是否有丟失屬性填充它與「0」

我想我能做到這一點與<xsl:if/>但我想，以避免這個因爲大約有56個屬性需要檢查。

這裏的主XML的樣子：

<player name="KLINE, Zach" shortname="KLINE, Zach" checkname="KLINE,ZACH" uni="1Q" class="SR" gp="1" code="1Q"> 
    <rush att="1" yds="11" gain="11" loss="0" td="0" long="11"></rush> 
    <pass comp="7" att="11" int="1" yds="110" td="0" long="32" sacks="0" sackyds="0"></pass> 
</player> 
<player name="JORDAN, Jamire" shortname="JORDAN, Jamire" checkname="JORDAN,JAMIRE" uni="1" class="SO" gp="1" code="1"> 
    <rush att="1" yds="1" gain="1" loss="0" td="0" long="1"></rush> 
    <rcv no="5" yds="52" td="0" long="16"></rcv> 
</player> 

輸出應該是這樣的：

<player name="KLINE, Zach" shortname="KLINE, Zach" checkname="KLINE,ZACH" uni="1Q" class="SR" gp="1" code="1Q"> 
    <rush att="1" yds="11" gain="11" loss="0" td="0" long="11"></rush> 
    <pass comp="7" att="11" int="1" yds="110" td="0" long="32" sacks="0" sackyds="0"></pass> 
    <rcv no="0" yds="0" td="0" long="0"></rcv> 
</player> 
<player name="JORDAN, Jamire" shortname="JORDAN, Jamire" checkname="JORDAN,JAMIRE" uni="1" class="SO" gp="1" code="1"> 
    <rush att="1" yds="1" gain="1" loss="0" td="0" long="1"></rush> 
    <pass comp="0" att="0" int="0" yds="0" td="0" long="0" sacks="0" sackyds="0"></pass> 
    <rcv no="5" yds="52" td="0" long="16"></rcv> 
</player> 

Answer 1

這似乎是一個理想的情況下使用xsl:attribute-set。考慮下面的簡單的例子：

XML

<root> 
    <player name="KLINE, Zach"> 
     <rush att="1" yds="11" gain="11"/> 
    </player> 
    <player name="JORDAN, Jamire"> 
     <rcv yds="52" long="16"/> 
    </player> 
    <player name="SMITH, Adam"/> 
</root> 

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="*"/> 

<xsl:attribute-set name="rush"> 
    <xsl:attribute name="att">0</xsl:attribute> 
    <xsl:attribute name="yds">0</xsl:attribute> 
    <xsl:attribute name="gain">0</xsl:attribute> 
    <xsl:attribute name="loss">0</xsl:attribute> 
    <xsl:attribute name="td">0</xsl:attribute> 
    <xsl:attribute name="long">0</xsl:attribute> 
</xsl:attribute-set> 

<xsl:attribute-set name="rcv"> 
    <xsl:attribute name="no">0</xsl:attribute> 
    <xsl:attribute name="yds">0</xsl:attribute> 
    <xsl:attribute name="td">0</xsl:attribute> 
    <xsl:attribute name="long">0</xsl:attribute> 
</xsl:attribute-set> 

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

<xsl:template match="player"> 
    <xsl:copy> 
     <xsl:apply-templates select="@*"/> 
     <rush xsl:use-attribute-sets="rush"> 
      <xsl:apply-templates select="rush/@*"/> 
     </rush> 
     <rcv xsl:use-attribute-sets="rcv"> 
      <xsl:apply-templates select="rcv/@*"/> 
     </rcv> 
    </xsl:copy> 
</xsl:template> 

</xsl:stylesheet> 

結果

<?xml version="1.0" encoding="UTF-8"?> 
<root> 
    <player name="KLINE, Zach"> 
    <rush att="1" yds="11" gain="11" loss="0" td="0" long="0"/> 
    <rcv no="0" yds="0" td="0" long="0"/> 
    </player> 
    <player name="JORDAN, Jamire"> 
    <rush att="0" yds="0" gain="0" loss="0" td="0" long="0"/> 
    <rcv no="0" yds="52" td="0" long="16"/> 
    </player> 
    <player name="SMITH, Adam"> 
    <rush att="0" yds="0" gain="0" loss="0" td="0" long="0"/> 
    <rcv no="0" yds="0" td="0" long="0"/> 
    </player> 
</root>