How do I search/replace text that is not standard size (decimal numbers)?

Hi @99drine and others, this is a challenge that comes up from time to time and yes, enforcing stylesheets is the answer, but how do you apply the stylesheet automatically if you can't perform the search for the point size?

I've written a script that can solve this particular problem. I tested it on your sample document @99drine and it worked as expected.

To use, first perform a normal find/change grep for the target point size: 4.6pt. In the change to field, set the point size also to 4.6pt. Then run the script, which perform that change on any text found within POINT_SIZE_THRESHOLD (see script) of the target point size. In my screenshot below I also changed it to blue, so you could see.

Let me know if it helps.

- Mark

Screenshot 1

Screenshot 2

Screenshot 3

/**
 * @file Find/Change Grep Using Fuzzy Point Size.js
 *
 * Usage:
 *   1. Perform an initial find/change grep via the UI
 *      and must include a target point size value, eg. '4.6pt'
 *      (include whatever other criteria for the finding
 *      and changing that you like).
 *   2. Run this script.
 *
 * Will perform the change grep on any text that is
 * within `POINT_SIZE_THRESHOLD` of the target point size.
 * Configure the threshold by editing this script below.
 *
 * @author m1b
 * @version 2025-11-08
 * @discussion https://community.adobe.com/t5/indesign-discussions/how-do-i-search-replace-text-that-is-not-standard-size-decimal-numbers/m-p/15581291
 */
function main() {

    var POINT_SIZE_THRESHOLD = 0.05; // pts

    app.scriptPreferences.measurementUnit = MeasurementUnits.POINTS;

    if (
        undefined == app.findGrepPreferences.pointSize
        || NothingEnum.NOTHING === app.findGrepPreferences.pointSize
    )
        return alert('Please perform an initial find grep for a target point size, eg. "4.6pts".');

    var doc = app.activeDocument;

    // this is the point size we are looking for
    var targetPointSize = app.findGrepPreferences.pointSize;

    // don't specify the point size for this search, we'll check it later
    app.findGrepPreferences.pointSize = NothingEnum.NOTHING;

    var findWhat = app.findGrepPreferences.findWhat
    // find all text
    app.findGrepPreferences.findWhat = '.*';

    // do the find
    var found = doc.findGrep();

    // check point size of each style range
    var counter = 0;
    for (var i = 0, parts; i < found.length; i++) {

        parts = found[i].textStyleRanges;

        partsLoop:
        for (var j = 0; j < parts.length; j++) {

            if (Math.abs(parts[j].pointSize - targetPointSize) > POINT_SIZE_THRESHOLD)
                // size difference is too great, not interested
                continue partsLoop;

            // perform the change as specified earlier via find/change grep UI
            parts[j].changeGrep();
            counter++;

        }

    }

    alert(counter + ' replacement made.');

    // cleanup
    app.findGrepPreferences.pointSize = targetPointSize;
    app.findGrepPreferences.findWhat = findWhat;

};
app.doScript(main, ScriptLanguage.JAVASCRIPT, undefined, UndoModes.ENTIRE_SCRIPT, 'Fuzzy Find/Change');

Edit: screenshots for clarity.