EXSLT - regexp:replace

Implementer Page: regexp.replace.html
Function Package: regexp.replace.zip

Function Syntax

string regexp:replace(string, string, string, string)

The regexp:replace function replaces the parts of a string that match a regular expression with another string.

The first argument is the string to be matched and replaced. The second argument is a regular expression that follows the Javascript regular expression syntax. The fourth argument is the string to replace the matched parts of the string.

The third argument is a string consisting of character flags to be used by the match. If a character is present then that flag is true. The flags are:

g: global replace - all occurrences of the regular expression in the string are replaced. If this character is not present, then only the first occurrence of the regular expression is replaced.
i: case insensitive - the regular expression is treated as case insensitive. If this character is not present, then the regular expression is case sensitive.

Implementations

The following XSLT processors support regexp:replace:

4XSLT, from 4Suite. (version 0.12.0a3)

Implementations of regexp:replace are available in the following languages:

Javascript (by Chris Bayes)
Msxsl (by Chris Bayes)

Examples

Function

The following example shows how to use the regexp:replace function:

Source

<a>
   <c>Is this EXSLT? No. no</c>
</a>

Stylesheet

<xsl:template match="a">
   <xsl:apply-templates />
</xsl:template>
<xsl:template match="*">
   <out>
      <xsl:value-of select="." />
 -
               <xsl:value-of select="regexp:replace(string(.), 'no', 'g', 'yes!!!')" />
      <xsl:value-of select="regexp:replace(string(.), 'no', 'gi', 'yes!!!')" />
      <xsl:apply-templates select="*" />
   </out>
</xsl:template>

Result

<out>Is this EXSLT? No. no -
         Is this EXSLT? No. yes!!!Is this EXSLT? yes!!!. yes!!!</out>