Function sanitize

services.ts:3481–3504

(item_type:"source"|"diff", string_purge:string)

                                            
                                            if (options.read_method === "subdirectory") {
                                                const sanitize = function node_apps_readmethod_resolve_stat_resolveItem_callbackDiff_sanitize(item_type:"source"|"diff", string_purge:string):void {
                                                    const arrays = function node_apps_readmethod_resolve_stat_resolveItem_callbackDiff_sanitize_arrays(arr:string[]):void {
                                                        let c:number = 0,
                                                            d:number = -1,
                                                            flen:number = arr.length;
                                                        if (flen < 1) {
                                                            return;
                                                        }
                                                        do {
                                                            if (d < 0 && arr[c].indexOf(string_purge) === 0) {
                                                                d = c;
                                                            } else if (d > -1 && arr[c].indexOf(string_purge) !== 0) {
                                                                arr.splice(d, c - d);
                                                                return;
                                                            }
                                                            c = c + 1;
                                                        } while (c < flen);
                                                        if (d > 0) {
                                                            arr.splice(d, c - d);
                                                        }
                                                    };
                                                    arrays(files[item_type]);
                                                    arrays(links[item_type]);
                                                };
                                                // File systems are tree structures, so this loop normalizes artificats against changes to directory structures.
                                                // If a directory is removed then indicate such without listing its thousands of descendant artifacts.
                                                do {