if (app.documents.length != 0){ 
if (app.selection.length >0){ 
var s = app.selection[0].constructor.name; 
switch (app.selection[0].constructor.name){ 
case "Text": 
case "InsertionPoint": 
case "Character": 
case "Word": 
case "Line": 
case "TextStyleRange": 
case "TextColumn": 
case "Paragraph": 
main(false); 
break; 
case "TextFrame": 
var aSel = app.selection; 
var myHeight = false; 
for (var n = 0; n < aSel.length; n++) { 
if (aSel[n].constructor.name == "TextFrame") { 
app.select(aSel[n].texts); 
myHeight = main(myHeight); 
} 
} 
break; 
default: 
alert("Es ist kein Text markiert."); 
break; 
} 
} 
else{ 
alert("Es ist nichts markiert."); 
} 
} 
else{ 
alert("Es ist kein Dokument offen."); 
} 
 
function main(myHeight) { 
var prevHUnits = 
app.activeDocument.viewPreferences.horizontalMeasurementUnits; 
app.activeDocument.viewPreferences.horizontalMeasurementUnits = 
MeasurementUnits.points; 
var prevVUnits = 
app.activeDocument.viewPreferences.verticalMeasurementUnits; 
app.activeDocument.viewPreferences.verticalMeasurementUnits = 
MeasurementUnits.points; 
 
var aStory = app.selection[0].parentStory; 
var tRanges = app.selection[0].textStyleRanges; 
if (myHeight == false) { 
var aSize = app.selection[0].pointSize / getRel(aStory, 
app.selection[0].index); 
var myDialog = app.dialogs.add({name:"x-Höhe eingeben"}); 
with(myDialog.dialogColumns.add()){ 
var vHeightField = measurementEditboxes.add({editValue: aSize, 
editUnits:MeasurementUnits.points, smallNudge:0.5}); 
} 
var myResult = myDialog.show(); 
if(myResult == true){ 
var vHeight = vHeightField.editValue; 
myDialog.destroy(); 
} 
else{ 
var vHeight = false; 
myDialog.destroy(); 
} 
} else { 
// Damit kann main() der gewünschte wert übergeben werden und muss nicht 
mehr abgefragt werden. 
var vHeight = myHeight; 
} 
 
if (vHeight != false) { 
for (var n = 0; n < tRanges.length; n++) { 
var aRel = getRel(aStory, tRanges[n].index); 
tRanges[n].pointSize = vHeight * aRel; 
} 
} 
app.activeDocument.viewPreferences.horizontalMeasurementUnits = prevHUnits; 
app.activeDocument.viewPreferences.verticalMeasurementUnits = prevVUnits;  
return vHeight; 
} 
 
function getRel(aStory, anIX) { 
aStory.insertionPoints[anIX+1].contents = "x";; 
var aChar = aStory.characters[anIX+1]; 
var aSize = aChar.pointSize; 
var aPath = aChar.createOutlines(); 
var bSize = aPath[0].geometricBounds[2]-aPath[0].geometricBounds[0]; 
aPath[0].remove(); 
return aSize / bSize; 
} 

main(); 
 
function main() { 
  var s = app.selection 
  if ( ! s || ! s.length || ! s[0].hasOwnProperty("baseline") ) { 
    alert("Bitte markieren Sie text von der gewünschten Schriftart"); 
    return; 
  } 
  var doc = app.activeDocument; 
 
  var rs = []; 
  rs[0] = [ 
    'font', 
    'x-höhe', 
    'pointSize', 
    'H', 
    'f', 
    'y', 
    'ober', 
    'unter' 
  ] 
   
  var story = s[0].parentStory; 
  for ( var n = 0; n < story.lines.length; n++ ) { 
    var msr = measure( story.lines[n].characters.firstItem() ); 
    rs.push( msr ); 
  } 
  var tf = doc.textFrames.add({geometricBounds: [0, 0, 300, 300]}); 
  tf.contents = rs.join("\n"); 
  doc.select( tf.parentStory.texts.everyItem() ); 
  app.copy(); 
  tf.remove(); 
  alert("Ergebnis ist kopiert") 
 
  function measure( text, fontSize ) { 
    if ( ! fontSize ) fontSize = 100; 
    var tf = app.activeDocument.textFrames.add({ geometricBounds: [0, 0, 1000, 1000]}); 
    text.duplicate( LocationOptions.AT_END, tf.parentStory); 
    tf.parentStory.contents = "xxHfy" 
    tf.texts.everyItem().pointSize = fontSize; 
    var x = tf.characters[0].createOutlines(); 
    var h = UnitValue(x[0].geometricBounds[2] - x[0].geometricBounds[0], doc.viewPreferences.verticalMeasurementUnits).as("pt"); 
    tf.texts.everyItem().pointSize = fontSize * fontSize / h ; 
    x[0].remove(); 
     
    var y = tf.characters[3].createOutlines(), 
        f = tf.characters[2].createOutlines(), 
        H = tf.characters[1].createOutlines(), 
        x = tf.characters[0].createOutlines(), 
        yh = UnitValue(y[0].geometricBounds[2] - y[0].geometricBounds[0], doc.viewPreferences.verticalMeasurementUnits).as("pt"), 
        fh = UnitValue(f[0].geometricBounds[2] - f[0].geometricBounds[0], doc.viewPreferences.verticalMeasurementUnits).as("pt"), 
        Hh = UnitValue(H[0].geometricBounds[2] - H[0].geometricBounds[0], doc.viewPreferences.verticalMeasurementUnits).as("pt"), 
        fplus = UnitValue(x[0].geometricBounds[0] - f[0].geometricBounds[0], doc.viewPreferences.verticalMeasurementUnits).as("pt"), 
        yplus = UnitValue(y[0].geometricBounds[2] - x[0].geometricBounds[2], doc.viewPreferences.verticalMeasurementUnits).as("pt"), 
        font = text.appliedFont; 
    if ( font instanceof Font ) font = font.fullName.replace(/\t/, " "); 
 
    tf.remove(); 
     
    return [ 
      font, 
      fontSize, 
      r(fontSize * fontSize / h), 
      r(Hh), 
      r(fh), 
      r(yh), 
      r(fplus), 
      r(yplus) 
    ].join("\t"); 
     
     
    function r(x) { 
      return Math.round( x * 100 ) / 100; 
    } 
  } 
} 

fh = UnitValue(f[0].geometricBounds[2] - f[0].geometricBounds[0], doc.viewPreferences.verticalMeasurementUnits).as("pt") 

main(); 
 
function main() { 
  var rs = []; 
  rs[0] = [ 
    'font', 
    'x-höhe', 
    'pointSize', 
    'H', 
    'f', 
    'y', 
    'ober', 
    'unter' 
  ].join("\t") 
   
  var doc = app.documents.add(); 
  var tf1 = doc.textFrames.add({geometricBounds: [0, 0, 300, 300]}); 
  tf1.contents = "blah"; 
  var fonts = app.fonts.everyItem().getElements(); 
  var w = new Window("palette"); 
  w.font = w.add("statictext", [undefined,undefined, 600, 20]); 
  w.pb = w.add("progressbar", [undefined, undefined, 600, 10]); 
  w.pb.maxvalue = fonts.length; 
  w.show(); 
 
  for ( var nf = 0; nf < Math.min(4000, fonts.length); nf++ ) { 
    if ( nf % 10 == 0) { 
      w.font.text = nf + "/" + fonts.length + " -- " + fonts[nf].fullName; 
    } 
    w.pb.value = nf; 
    tf1.parentStory.texts.everyItem().appliedFont = fonts[nf]; 
    var msr = measure(tf1.parentStory.characters.firstItem() ); 
    rs.push( msr ); 
  } 
  w.close(); 
 
  var tf = doc.textFrames.add({geometricBounds: [0, 0, 300, 300]}); 
  tf.contents = rs.join("\n"); 
  doc.select( tf.parentStory.texts.everyItem() ); 
  app.copy(); 
  tf.remove(); 
  alert("Ergebnis ist kopiert") 
 
  function measure( text, fontSize ) { 
    var font = text.appliedFont; 
    if ( font instanceof Font ) font = font.fullName.replace(/\t/, " "); 
    if ( ! fontSize ) fontSize = 100; 
    var tf = app.activeDocument.textFrames.add({ geometricBounds: [0, 0, 1000, 1000]}); 
    text.duplicate( LocationOptions.AT_END, tf.parentStory); 
    tf.parentStory.contents = "xxHfy" 
    tf.texts.everyItem().pointSize = fontSize; 
    try { 
      var x = tf.characters[0].createOutlines(); 
      var h = UnitValue(x[0].geometricBounds[2] - x[0].geometricBounds[0], doc.viewPreferences.verticalMeasurementUnits).as("pt"); 
      tf.texts.everyItem().pointSize = fontSize * fontSize / h ; 
      x[0].remove(); 
       
      var y = tf.characters[3].createOutlines(), 
          f = tf.characters[2].createOutlines(), 
          H = tf.characters[1].createOutlines(), 
          x = tf.characters[0].createOutlines(), 
          yh = UnitValue(y[0].geometricBounds[2] - y[0].geometricBounds[0], doc.viewPreferences.verticalMeasurementUnits).as("pt"), 
          fh = UnitValue(f[0].geometricBounds[2] - f[0].geometricBounds[0], doc.viewPreferences.verticalMeasurementUnits).as("pt"), 
          Hh = UnitValue(H[0].geometricBounds[2] - H[0].geometricBounds[0], doc.viewPreferences.verticalMeasurementUnits).as("pt"), 
          fplus = UnitValue(x[0].geometricBounds[0] - f[0].geometricBounds[0], doc.viewPreferences.verticalMeasurementUnits).as("pt"), 
          yplus = UnitValue(y[0].geometricBounds[2] - x[0].geometricBounds[2], doc.viewPreferences.verticalMeasurementUnits).as("pt"); 
    } catch(e) { 
      return [ font, fontSize, -1, -1, -1, -1, -1, -1 ].join("\t"); 
    } finally { 
      tf.remove(); 
    } 
     
    return [ 
      font, 
      fontSize, 
      r(fontSize * fontSize / h), 
      r(Hh), 
      r(fh), 
      r(yh), 
      r(fplus), 
      r(yplus) 
    ].join("\t"); 
     
    function r(x) { 
      return Math.round( x * 100 ) / 100; 
    } 
  } 
} 

   tf1.parentStory.texts.everyItem().appliedFont = fonts[nf]; 
   var msr = measure(tf1.parentStory.characters.firstItem() );