literal soy template ${XXX}

[Kegan Holtzhausen]

How do I put a literal ${XXX} into a soy template item?

The following excerpt is invalid, and I don't know how to escape the ${XXX}, tried to use '{literal}' as defined in google's documentation, but no luck. https://developers.google.com/closure/templates/docs/commands#literal

{call aui.form.textField}
    {param id: 'labeltemplate' /}
    {param value: $config.labeltemplate ? $config.labeltemplate : '1.0.${XXX}' /}
    {param labelContent: 'Label Template'  /}
    {param descriptionText: 'Go label template to apply: ' + $config.labeltemplate /}
    {param errorTexts: $errors ? $errors['labeltemplate'] : null /}
{/call}

Exception in logs

Left brace '{' not allowed within a Soy tag delimited by single braces (consider using double braces to delimit the Soy tag)

[Adam · Accepted solution]

Change

{param value: $config.labeltemplate ? $config.labeltemplate : '1.0.${XXX}' /}

To

{{param value: $config.labeltemplate ? $config.labeltemplate : '1.0.${XXX}' /}}

This is what your message below means when it says consider using double braces.

[Kegan Holtzhausen]

Thanks @Adam Ahmed

/Kegan