indexRollupNext.js
function wrap(text, width, wrapSplitter) {
  var lineHeight = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 1.2;

  text.each(function () {
    var text = select(this),
        words = text.text().split(wrapSplitter || /[ \t\r\n]+/).reverse().filter(function (w) {
      return w !== "";
    });
    var word = void 0,
        line$$1 = [],
        tspan = text.text(null).append("tspan").attr("x", 0).attr("dy", 0.8 + "em");

    while (word = words.pop()) {
      line$$1.push(word);
      tspan.text(line$$1.join(" "));
      if (tspan.node().getComputedTextLength() > width && line$$1.length > 1) {
        line$$1.pop();
        tspan.text(line$$1.join(" "));
        line$$1 = [word];
        tspan = text.append("tspan").attr("x", 0).attr("dy", lineHeight + "em").text(word);
      }
    }
  });
}
function wrap(text, width, wrapSplitter) {
  var lineHeight = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 1.2;

  text.each(function () {
    var text = select(this),
        words = text.text().split(wrapSplitter || /[ \t\r\n]+/).reverse().filter(function (w) {
      return w !== "";
    });
    var word = void 0,
        line$$1 = [],
        tspan = text.text(null).append("tspan").attr("x", 0).attr("dy", 0.8 + "em");

    while (word = words.pop()) {
      line$$1.push(word);
      tspan.text(line$$1.join(" "));
      if (tspan.node().getComputedTextLength() > width && line$$1.length > 1) {
        line$$1.pop();
        tspan.text(line$$1.join(" "));
        line$$1 = [word];
        tspan = text.append("tspan").attr("x", 0).attr("dy", lineHeight + "em").text(word);
      }
    }
  });
}
function wrap ( text , width , wrapSplitter ) { var lineHeight = arguments . length > 3 && arguments [ 3 ] !== undefined ? arguments [ 3 ] : 1.2 ; text . each ( function ( ) { var text = select ( this ) , words = text . text ( ) . split ( wrapSplitter || / [ \t\r\n]+ / ) . reverse ( ) . filter ( function ( w ) { return w !== "" ; } ) ; var word = void 0 , line$$1 = [ ] , tspan = text . text ( null ) . append ( "tspan" ) . attr ( "x" , 0 ) . attr ( "dy" , 0.8 + "em" ) ; while ( word = words . pop ( ) ) { line$$1 . push ( word ) ; tspan . text ( line$$1 . join ( " " ) ) ; if ( tspan . node ( ) . getComputedTextLength ( ) > width && line$$1 . length > 1 ) { line$$1 . pop ( ) ; tspan . text ( line$$1 . join ( " " ) ) ; line$$1 = [ word ] ; tspan = text . append ( "tspan" ) . attr ( "x" , 0 ) . attr ( "dy" , lineHeight + "em" ) . text ( word ) ; } } } ) ; }
Text wrapping code adapted from Mike Bostock
Text wrapping code adapted from Mike Bostock