nl_tokens: It uses _ . template to interpolate config strings { output : index - <% = version % > . js version : 1 . 0 . 1 }
pl_tokens: function interpolateConfigStrings ( config , data ) { data = data || config ; for ( var key in config ) { var value = config [ key ] ; if ( typeof value === "object" ) { config [ key ] = interpolateConfigStrings ( value , data ) ; } else if ( typeof value === "string" ) { var currentInterpolation = 0 ; while ( templateParts . test ( <mask> ) ) { currentInterpolation ++ ; if ( currentInterpolation > maxInterpolateRecursion ) { break ; } config [ key ] = value = template ( value , data ) ; } } } return config ; }