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使用超时和数字的正则表达式(Regular expression using hypens and digits)

 我想创建一个正则表达式，以便只有超文本和数字必须在标准文本框中被允许 
 

     
 
  1.  Hypen不应该进入第一个和最后一个位置 
    2.  
 
  2.  Hypen必须在两端都有数字 
    3.  
 
  3.  文本框中可以有n个超文本和数字 
    4.  

 

 提前致谢 

I want to create a regular expression in such a way that only hypens and digits must be allowed in the text box the criteria is
 

     
 
  1. Hypen should not come in the first and last position
    2.  
 
  2. Hypen must have digits at both ends
    3.  
 
  3. There can be n number of hypens and digits in the text box
    4.  

 

Thanks in advance

原文：https://stackoverflow.com/questions/4352025
更新时间：2023-09-11 19:09

最满意答案

 
 
<xsl:sort select="promotionid" order="descending" data-type="number"

 
 
 /> 
 

 

 这里有一个明显的错误 ： promotionid是一个属性，而不是一个元素。 
 

 解答 ： 
 

 

select="@promotionid" order="descending" data-type="number" />

 

 另一个错误 ： 
 

<xsl:template match="content/collection/data">
    <xsl:apply-templates>
        <xsl:sort select="promotionid" order="descending" data-type="number" />
    </xsl:apply-templates>
</xsl:template>

 

 <xsl:apply-templates>和排序过晚。 
 

 你想要 ： 
 

<xsl:template match="content/collection/">
            <xsl:apply-templates>
                <xsl:sort select="@promotionid" order="descending" data-type="number" />
            </xsl:apply-templates>
        </xsl:template>

 

 和 
 

    <xsl:template match="content/collection/data">
        <xsl:if test="position()=1">
                   <xsl:value-of select="@promotionid"/>
        </xsl:if>
    </xsl:template>

 

 至于你的扩展问题 ： 
 

 这一转变： 
 

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output omit-xml-declaration="yes" indent="yes"/>
    <xsl:template match="node()|@*">
      <xsl:copy>
         <xsl:apply-templates select="node()|@*"/>
      </xsl:copy>
    </xsl:template>

    <xsl:template match="collection">
      <xsl:copy>
        <xsl:apply-templates select="@*"/>
        <xsl:apply-templates select="data">
         <xsl:sort select="@promotionid" data-type="number" order="descending"/>
         <xsl:sort select=
          "concat(
             substring-after(substring-after(substring-before(@startdate,' ')
                                             ,'/'
                                             ),
                               '/'
                               ),
             substring-before(substring-after(substring-before(@startdate,' ')
                                             ,'/'
                                             ),
                              '/'
                            ),
             substring-before(substring-after(substring-before(@startdate,' ')
                                             ,'/'
                                             ),
                               '/'
                               )
                )"/>
        </xsl:apply-templates>
      </xsl:copy>
    </xsl:template>
</xsl:stylesheet>

 

 当应用于提供的XML文档时 ： 
 

<content date="1/13/2011 1:21:00 PM">
    <collection vo="promotion">
        <data vo="promotion" promotionid="64526" code="101P031" startdate="1/7/2011 12:00:00 AM"/>
        <data vo="promotion" promotionid="64646" code="101P046" startdate="1/9/2011 12:00:00 AM"/>
    </collection>
</content>

 

 产生想要的结果 ： 
 

<content date="1/13/2011 1:21:00 PM">

   <collection vo="promotion">
      <data vo="promotion" promotionid="64646" code="101P046" startdate="1/9/2011 12:00:00 AM"/>
      <data vo="promotion" promotionid="64526" code="101P031" startdate="1/7/2011 12:00:00 AM"/>
   </collection>

</content>

 

 但是，请注意 ，这不能处理日期组件的可变长度。 最好使用固定长度格式：mm / dd / yyyy 

 
 
<xsl:sort select="promotionid" order="descending" data-type="number"

 
 
/>
 

 

There is an obvious error here: promotionid is an attribute, not an element.
 

Solution:
 

 
 

select="@promotionid" order="descending" data-type="number" />

 

Another error:
 

<xsl:template match="content/collection/data">
    <xsl:apply-templates>
        <xsl:sort select="promotionid" order="descending" data-type="number" />
    </xsl:apply-templates>
</xsl:template>

 

The <xsl:apply-templates> and sorting is performed too-late.
 

You want:
 

<xsl:template match="content/collection/">
            <xsl:apply-templates>
                <xsl:sort select="@promotionid" order="descending" data-type="number" />
            </xsl:apply-templates>
        </xsl:template>

 

and
 

    <xsl:template match="content/collection/data">
        <xsl:if test="position()=1">
                   <xsl:value-of select="@promotionid"/>
        </xsl:if>
    </xsl:template>

 

As for your expanded question:
 

This transformation:
 

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output omit-xml-declaration="yes" indent="yes"/>
    <xsl:template match="node()|@*">
      <xsl:copy>
         <xsl:apply-templates select="node()|@*"/>
      </xsl:copy>
    </xsl:template>

    <xsl:template match="collection">
      <xsl:copy>
        <xsl:apply-templates select="@*"/>
        <xsl:apply-templates select="data">
         <xsl:sort select="@promotionid" data-type="number" order="descending"/>
         <xsl:sort select=
          "concat(
             substring-after(substring-after(substring-before(@startdate,' ')
                                             ,'/'
                                             ),
                               '/'
                               ),
             substring-before(substring-after(substring-before(@startdate,' ')
                                             ,'/'
                                             ),
                              '/'
                            ),
             substring-before(substring-after(substring-before(@startdate,' ')
                                             ,'/'
                                             ),
                               '/'
                               )
                )"/>
        </xsl:apply-templates>
      </xsl:copy>
    </xsl:template>
</xsl:stylesheet>

 

when applied to the provided XML document:
 

<content date="1/13/2011 1:21:00 PM">
    <collection vo="promotion">
        <data vo="promotion" promotionid="64526" code="101P031" startdate="1/7/2011 12:00:00 AM"/>
        <data vo="promotion" promotionid="64646" code="101P046" startdate="1/9/2011 12:00:00 AM"/>
    </collection>
</content>

 

produces the wanted result:
 

<content date="1/13/2011 1:21:00 PM">

   <collection vo="promotion">
      <data vo="promotion" promotionid="64646" code="101P046" startdate="1/9/2011 12:00:00 AM"/>
      <data vo="promotion" promotionid="64526" code="101P031" startdate="1/7/2011 12:00:00 AM"/>
   </collection>

</content>

 

However, note that this well not handle the variable length for the date components. It is better to use fixed length format: mm/dd/yyyy

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