是否可以使用xslt对版本号进行排序,而不会涉及怪异的计算和字符串操作?
我有一个看起来像这样的列表:
<?xml version="1.0"?>
<list>
<directory mtime="2018-08-23T09:40:02Z">2.12.01</directory>
<directory mtime="2018-11-19T15:04:06Z">2.12.02</directory>
<directory mtime="2018-09-05T14:07:04Z">3.0.0</directory>
<directory mtime="2018-10-08T07:14:02Z">3.0.1</directory>
<directory mtime="2018-11-29T17:06:58Z">3.0.12</directory>
<directory mtime="2018-11-13T11:34:26Z">2.99.99</directory>
<directory mtime="2018-11-29T17:06:58Z">latest</directory>
</list>
我想按版本号对它进行排序,以使3.0.0例如在2.99.99之前。这是我的解决方法,
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<body>
<table border="0">
<tr bgcolor="#9acd32">
<th>name</th>
<th>date</th>
</tr>
<xsl:for-each select="list/*">
<xsl:sort select="(number(substring-before(., '.')) * 10000) + (number(substring-before(substring(., number(string-length(substring-before(., '.'))+2), 6), '.')) * 10) + (number(substring-after(substring(., number(string-length(substring-before(., '.'))+2), 6), '.')))" data-type="number" order="descending" />
<xsl:variable name="name">
<xsl:value-of select="."/>
</xsl:variable>
<xsl:variable name="date">
<xsl:value-of select="substring(@mtime,9,2)"/>-<xsl:value-of select="substring(@mtime,6,2)"/>-<xsl:value-of select="substring(@mtime,1,4)"/><xsl:text> </xsl:text>
<xsl:value-of select="substring(@mtime,12,2)"/>:<xsl:value-of select="substring(@mtime,15,2)"/>:<xsl:value-of select="substring(@mtime,18,2)"/>
</xsl:variable>
<tr>
<td><a href="{$name}"><xsl:value-of select="."/></a></td>
<td><xsl:value-of select="$date"/></td>
</tr>
</xsl:for-each>
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
它的作用是分裂。并将其转换为数字,然后用10000计算第一个数字,用10计算第二个数字,然后将它们加起来成为一个可以排序的数字。
答案 0 :(得分:1)
这就是我重写您的尝试的方式:
XSLT 1.0
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="html" encoding="utf-8" indent="yes"/>
<xsl:template match="/list">
<html>
<body>
<table>
<tr>
<th>name</th>
<th>date</th>
</tr>
<xsl:for-each select="directory">
<xsl:sort select="substring-before(., '.')" data-type="number" order="descending"/>
<xsl:sort select="substring-before(substring-after(., '.'), '.')" data-type="number" order="descending"/>
<xsl:sort select="substring-after(substring-after(., '.'), '.')" data-type="number" order="descending"/>
<tr>
<td>
<a href=".">
<xsl:value-of select="."/>
</a>
</td>
<td>
<xsl:value-of select="substring(@mtime, 9, 2)"/>
<xsl:text>-</xsl:text>
<xsl:value-of select="substring(@mtime, 6, 2)"/>
<xsl:text>-</xsl:text>
<xsl:value-of select="substring(@mtime, 1, 4)"/>
<xsl:text> </xsl:text>
<xsl:value-of select="substring(@mtime, 12, 8)"/>
</td>
</tr>
</xsl:for-each>
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>