Ace document.applyDelta function that splits 'remove' deltas.

document-snippet.js

 this.applyDelta = function(delta) {

        // Split large insert deltas. This is necessary because:
        //    1. We need to support splicing delta lines into the document via $lines.splice.apply(...)
        //    2. fn.apply() doesn't work for a large number of params. The mallest threshold is on safari 0xFFFF.
        if (delta.lines.length > 65000)
        {
            // Get split deltas.
            var deltas = [];
            var fnPush = (delta.action == 'insert' ? Array.prototype.push : Array.prototype.unshift); // Fire delete actions in reverse.
            while (delta.lines.length > 65000)
            {
                // Get split deltas.
                var lines = delta.lines.splice(0, 65000);
                lines.push('');
                fnPush.apply(deltas, [{
                    action: delta.action,
                    lines: lines,
                    range: new Range(delta.range.start.row, delta.range.start.column,
                                     delta.range.start.row + 65000, 0)
                }]);
                
                // Update remaining delta.
                delta.range.start.row   += 65000;
                delta.range.start.column = 0;
            }
            fnPush.apply(deltas, [delta]);
            
            // Apply split deltas.
            for (var i in deltas)
            {
                applyDelta(this.$lines, deltas[i]);
                this._emit("change", { data: deltas[i]});
            }
        }
        else
        {
            applyDelta(this.$lines, delta);
            this._emit("change", { data: delta });            
        }
    };