Match an XSLT Regex Pattern

Question

I've the below XML String

<para><content-style font-style="bold">59/App/1/1 Amendment—</content-style>
</para>

and the below regex match.

 <xsl:template match="para[fn:not(@align)]/content-style[1]/text()">
    <xsl:choose>
                    <xsl:when test="fn:not(contains(substring-before(.,'/'),' '))">

 <xsl:analyze-string select="." regex="([0-9]+[\w+]?)/([0-9]+[\w+]?)/([0-9]+[\w+]?)/([0-9]+[\w+]?)">
            <xsl:matching-substring>
                <span class="phrase">
                    <a name="{concat('P',regex-group(1),'-',regex-group(2),'-',regex-group(3),regex-group(4))}"/>
                    <xsl:value-of select="."></xsl:value-of>
                </span>
            </xsl:matching-substring>
            <xsl:non-matching-substring>                

        <xsl:analyze-string select="." regex="([0-9]+[\w+]?)/([0-9]+[\w+]?)/([0-9]+[\w+]?)">
            <xsl:matching-substring>
                <span class="phrase">
                    <a name="{concat('P',regex-group(1),'-',regex-group(2),'-',regex-group(3))}"/>
                    <xsl:value-of select="."></xsl:value-of>
                </span>
            </xsl:matching-substring>
            <xsl:non-matching-substring>
                <xsl:analyze-string select="." regex="([0-9]+[\w+]?)/([0-9]+[\w+]?)">
                    <xsl:matching-substring>
                        <span class="phrase">
                            <a name="{concat('P',regex-group(1),'-',regex-group(2))}"/>
                            <xsl:value-of select="."></xsl:value-of>
                        </span>
                    </xsl:matching-substring>
                    <xsl:non-matching-substring>
                        <xsl:value-of select="."></xsl:value-of>
                    </xsl:non-matching-substring>
                </xsl:analyze-string>
            </xsl:non-matching-substring>
        </xsl:analyze-string>
       </xsl:non-matching-substring>
       </xsl:analyze-string>
            </xsl:when>
                    <xsl:otherwise>
<xsl:value-of select="."/>                  
                    </xsl:otherwise>
                </xsl:choose>
    </xsl:template>

here i want to match 59/App/1/1 with regex, but i'm unable to understand how to do it. I tried to analyze-string using <xsl:analyze-string select="." regex="([0-9]+[\w+]?)/([0-9]+[\w+]?)/([0-9]+[\w+]?)/([0-9]+[\w+]?)"> , and it is not getting matched., please let me know where i went wrong and how to fix this.

Thanks

Answer 1

In your pattern:

([0-9]+[\w+]?)

• [0-9]+ matches a single character present in the range between 0 and 9, as many times as possible
• [\w+]? matches a single character from + and [A-Za-z0-9_] character set, zero and one time.

Since this pattern will never match the word App; your regex fails.

You can use the following pattern:

(\w+)/(\w+)/(\w+)/(\w+)

as \w already includes the [0-9] class.