> let's say I have:
> 
> <img src="x.bmp" alt="[tag]"/>
> 
> and I want to replace '[' with '<' to get the output
> 
> <img src="x.bmp">
> <tag/>

No, you don't want to replace [ by <, you want to generate an element
node based on the value of the alt attribute, with [ and ] removed.

<xsl:template match="img">
 <img src="{@src}" />
 <xsl:element name="translate(@alt,'[]','')"/>
</xsl:template>

David


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