Finding stuff is relatively easy with a script, but it's quite hard to make it 'interactive'. That is, if you need functionality such as 'find next', 'find in current story', or even 'find previous' (a function that Adobe feels unnecessary, even in CS6), one needs a large script.
In addition, just like in the UI, you cannot do a plain search for “not x“. You must inspect every single item, one at a time.
If you only need to find the very next occurrence and you always correct it immediately, then you could use this:
cstyles = app.activeDocument.stories.everyItem().textStyleRanges.everyItem().getElements();
for (i=0; i!=cstyles.length ;i++)
{
if (cstyles[i].verticalScale != 100)
{
app.select(cstyles[i]);
app.layoutWindows[0].zoomPercentage = app.layoutWindows[0].zoomPercentage;
}
}
… It always restarts searching from the very start of your document, so if you leave even just one occurrence unchanged, the script will always stop at that point.
Do you reset the vertical scale to 100%? I imagine you don't, since the horizontal scale should also be adjusted. But if you do, you could replace the inner two commands with this single one:
cstyles[i].verticalScale = 100;
.. although the end result is not different from “Select All” and then setting the vertical scale for all text at once ..
.
