Tooltip Helper for the XPath Functions Arguments
When editing the arguments of an XPath/XSLT function, Oxygen XML Developer tracks the current entered argument by displaying a tooltip containing the function signature. The currently edited argument is highlighted with a bolder font.
When moving the cursor through the expression, the tooltip is updated to reflect the argument found at the cursor position.
We want to concatenate the absolute values of two variables, named v1 and v2.
<xsl:template match="/">
    <xsl:value-of select="concat(abs($v1), abs($v2))"></xsl:value-of>
</xsl:template>When
            moving the cursor before the first abs function, Oxygen XML Developer
            identifies it as the first argument of the concat function. The tooltip shows
            in bold font the following information about the first argument:
            - Its name is $arg1.
- Its type is xdt:anyAtomicType.
- It is optional (note the ?sign after the argument type).
xs:string.
            XPath Tooltip Helper - Identify the concat Function's First
                     Argument
                  

$v1, the editor identifies the
            abs as context function and shows its signature:
            XPath Tooltip Helper - Identify the abs Function's
                     Argument
                  

abs function name, the editor detects that
            it represents the second argument of the concat function. The tooltip is
            repainted to display the second argument in bold font.
            XPath Tooltip Helper - Identify the concat Function's Second
                     Argument
                  

The tooltip helper is also available in the XPath Builder view and XPath toolbar.
