所以......我很无聊,之前没有玩过xsl:analyze-string.这是一个基于正则表达式的解决方案:
<?xml version="1.0" encoding="utf-8" standalone="no"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" version="2.0">
<xsl:template match="/item/date">
<xsl:analyze-string select="@value" regex="([0-9]+)/([0-9]+)/([0-9]+) ([0-9]+):([0-9]+):([0-9]+) (PM|AM)">
<xsl:matching-substring>
<xsl:variable name="month" select="number(regex-group(1))"/>
<xsl:variable name="day" select="number(regex-group(2))"/>
<xsl:variable name="year" select="number(regex-group(3))"/>
<xsl:variable name="hours">
<xsl:choose>
<xsl:when test="regex-group(7) = 'PM'">
<xsl:value-of select="12 + number(regex-group(4))"/>
</xsl:when>
<xsl:otherwise><xsl:value-of select="number(regex-group(4))"/></xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:variable name="minutes" select="number(regex-group(5))"/>
<xsl:variable name="seconds" select="number(regex-group(6))"/>
<xsl:variable name="dateTime" select="xs:dateTime( concat($year, '-', format-number($month, '00'), '-', format-number($day, '00'), 'T', format-number($hours, '00'), ':', format-number($minutes, '00'), ':', format-number($seconds, '00'), 'Z') )" />
<reformattedDate>
<xsl:value-of select="$dateTime"/>
</reformattedDate>
</xsl:matching-substring>
</xsl:analyze-string>
</xsl:template>
</xsl:stylesheet>
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我对这个测试xml文件运行这个:
<?xml version="1.0" encoding="utf-8" standalone="no"?>
<item>
<date value="4/1/2013 5:13:41 PM"/>
</item>
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输出是这样的:
<?xml version="1.0" encoding="UTF-8"?>
<reformattedDate xmlns:xs="http://www.w3.org/2001/XMLSchema">2013-04-01T17:13:41Z</reformattedDate>
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如果要按照建议的那样更精确地格式化输出,可以使用format-date函数.
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