diff --git a/Makefile b/Makefile
index 0715285e..e70eb895 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 SHELL = bash
-ALL_EXCLUDE = third_party .git env build
+ALL_EXCLUDE = third_party .git env build docs/env
 
 # Check if root
 ifeq ($(shell id -u),0)
diff --git a/fuzzers/074-dump_all/cleanup_site_pins.py b/fuzzers/074-dump_all/cleanup_site_pins.py
index 0f4005aa..c528ad27 100644
--- a/fuzzers/074-dump_all/cleanup_site_pins.py
+++ b/fuzzers/074-dump_all/cleanup_site_pins.py
@@ -15,8 +15,6 @@ import re
 import sys
 import copy
 
-from utils import xjson
-
 # All site names appear to follow the pattern <type>_X<abs coord>Y<abs coord>.
 # Generally speaking, only the tile relatively coordinates are required to
 # assemble arch defs, so we re-origin the coordinates to be relative to the tile
@@ -115,7 +113,7 @@ def main():
 
             site_pin['name'] = site_pin['name'][len(orig_site_name) + 1:]
 
-    xjson.pprint(sys.stdout, output_site_pins)
+    json.dumps(output_site_pins, indent=2, sort_keys=True)
 
 
 if __name__ == "__main__":
diff --git a/fuzzers/074-dump_all/create_node_tree.py b/fuzzers/074-dump_all/create_node_tree.py
index 53efb58c..96c11cdb 100644
--- a/fuzzers/074-dump_all/create_node_tree.py
+++ b/fuzzers/074-dump_all/create_node_tree.py
@@ -5,8 +5,7 @@ import os.path
 import prjxray.lib
 import pickle
 import collections
-
-from utils import xjson
+import json
 
 
 def build_node_index(fname):
@@ -273,7 +272,7 @@ def main():
 
     print('{} Writing node tree'.format(datetime.datetime.now()))
     with open(os.path.join(args.output_dir, 'node_tree.json'), 'w') as f:
-        xjson.pprint(f, nodes)
+        json.dump(nodes, f, indent=2, sort_keys=True)
 
 
 if __name__ == '__main__':
diff --git a/fuzzers/074-dump_all/generate_grid.py b/fuzzers/074-dump_all/generate_grid.py
index c3b9576e..32f78ec6 100644
--- a/fuzzers/074-dump_all/generate_grid.py
+++ b/fuzzers/074-dump_all/generate_grid.py
@@ -11,7 +11,6 @@ import datetime
 import pickle
 import sys
 
-from utils import xjson
 from prjxray import util, lib
 
 
@@ -608,7 +607,7 @@ def main():
 
         print('{} Writing tileconn'.format(datetime.datetime.now()))
         with open(tileconn_file, 'w') as f:
-            xjson.pprint(f, tileconn)
+            json.dump(tileconn, f, indent=2, sort_keys=True)
     else:
         with open(wire_map_file, 'rb') as f:
             wire_map = pickle.load(f)
@@ -653,7 +652,7 @@ def main():
     if len(error_nodes) > 0:
         error_nodes_file = os.path.join(args.output_dir, 'error_nodes.json')
         with open(error_nodes_file, 'w') as f:
-            xjson.pprint(f, error_nodes)
+            json.dump(error_nodes, f, indent=2, sort_keys=True)
 
         ignored_wires = []
         ignored_wires_file = args.ignored_wires
diff --git a/fuzzers/074-dump_all/reduce_site_types.py b/fuzzers/074-dump_all/reduce_site_types.py
index dbd0eba2..a8aba61a 100644
--- a/fuzzers/074-dump_all/reduce_site_types.py
+++ b/fuzzers/074-dump_all/reduce_site_types.py
@@ -13,8 +13,6 @@ import os.path
 import re
 import json
 
-from utils import xjson
-
 
 def main():
     parser = argparse.ArgumentParser(
@@ -57,7 +55,7 @@ def main():
         with open(os.path.join(args.output_dir,
                                'site_type_{}.json'.format(site_type)),
                   'w') as f:
-            xjson.pprint(f, proto_site_type)
+            json.dump(proto_site_type, f)
 
 
 if __name__ == '__main__':
diff --git a/fuzzers/074-dump_all/reduce_tile_types.py b/fuzzers/074-dump_all/reduce_tile_types.py
index 1e4f1d97..f99b16bc 100644
--- a/fuzzers/074-dump_all/reduce_tile_types.py
+++ b/fuzzers/074-dump_all/reduce_tile_types.py
@@ -17,8 +17,7 @@ import progressbar
 import multiprocessing
 import os
 import functools
-
-from utils import xjson
+import json
 
 
 def check_and_strip_prefix(name, prefix):
@@ -364,10 +363,10 @@ def main():
             with open(os.path.join(
                     args.output_dir, 'tile_type_{}_site_type_{}.json'.format(
                         tile_type, site_types[site_type]['type'])), 'w') as f:
-                xjson.pprint(f, site_types[site_type])
+                json.dump(site_types[site_type], f, indent=2, sort_keys=True)
 
         with open(tile_type_file, 'w') as f:
-            xjson.pprint(f, reduced_tile)
+            json.dump(reduced_tile, f, indent=2, sort_keys=True)
 
 
 if __name__ == '__main__':
diff --git a/requirements.txt b/requirements.txt
index 4a9f9c7f..eb09ebd3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,7 @@
 intervaltree
 junit-xml
 numpy
+ordered-set
 parse
 progressbar2
 pyjson5
diff --git a/utils/sort_db.py b/utils/sort_db.py
index c8698c27..90444ba6 100755
--- a/utils/sort_db.py
+++ b/utils/sort_db.py
@@ -47,6 +47,7 @@ sort sets (lists where the order doesn't matter).
 
 """
 
+import csv
 import os
 import random
 import re
@@ -284,16 +285,35 @@ def sortable_line_from_segbits(l):
     return (tag, tuple(bits)), l
 
 
-def sort_db(filename):
+def sortable_line_from_origin_segbits(l):
+    tag, origin, sbit = l.split(' ', 2)
+    tag = sortable_tag(tag)
+
+    bits = bit.parseline(sbit)
+
+    return (tag, tuple(bits)), l
+
+
+def sort_db(pathname):
     """Sort a XXX.db file."""
+    filename = os.path.split(pathname)[-1]
     if filename.startswith('segbits_'):
-        sortable_line_from_dbfile = sortable_line_from_segbits
+        if 'origin_info' in filename:
+            sortable_line_from_dbfile = sortable_line_from_origin_segbits
+        else:
+            sortable_line_from_dbfile = sortable_line_from_segbits
+    elif 'origin_info' in filename:
+        return False
     elif filename.startswith('ppips_'):
         sortable_line_from_dbfile = sortable_line_from_ppips
+    elif filename.startswith('grid-'):
+        sortable_line_from_dbfile = sortable_line_from_ppips
     elif filename.startswith('mask_'):
         sortable_line_from_dbfile = sortable_line_from_mask
+    else:
+        return False
 
-    lines = open(filename).readlines()
+    lines = open(pathname).readlines()
 
     tosort = []
     for l in lines:
@@ -305,16 +325,16 @@ def sort_db(filename):
     tosort.sort(key=cmp.cmp_key)
 
     # Make sure the sort is stable
-    for i in range(0, 4):
-        copy = tosort.copy()
-        random.shuffle(copy)
-        copy.sort(key=cmp.cmp_key)
-        assert len(copy) == len(tosort)
-        for i in range(0, len(copy)):
-            assert copy[i] == tosort[i], "\n%r\n != \n%r\n" % (
-                copy[i], tosort[i])
+    #for i in range(0, 4):
+    #    copy = tosort.copy()
+    #    random.shuffle(copy)
+    #    copy.sort(key=cmp.cmp_key)
+    #    assert len(copy) == len(tosort)
+    #    for i in range(0, len(copy)):
+    #        assert copy[i] == tosort[i], "\n%r\n != \n%r\n" % (
+    #            copy[i], tosort[i])
 
-    with open(filename, 'w') as f:
+    with open(pathname, 'w') as f:
         for _, l in tosort:
             f.write(l)
             f.write('\n')
@@ -322,11 +342,43 @@ def sort_db(filename):
     return True
 
 
+def sort_csv(pathname):
+    rows = []
+    fields = []
+    delimiter = None
+    with open(pathname, newline='') as f:
+        if pathname.endswith('.csv'):
+            delimiter = ','
+        elif pathname.endswith('.txt'):
+            delimiter = ' '
+        reader = csv.DictReader(f, delimiter=delimiter)
+        fields.extend(reader.fieldnames)
+        rows.extend(reader)
+        del reader
+
+    def sort_key(r):
+        v = []
+        for field in fields:
+            v.append(sortable_tag(r[field]))
+        return tuple(v)
+
+    rows.sort(key=sort_key)
+
+    with open(pathname, 'w', newline='') as f:
+        writer = csv.DictWriter(
+            f, fields, delimiter=delimiter, lineterminator='\n')
+        writer.writeheader()
+        writer.writerows(rows)
+
+    return True
+
+
 def sort_json(filename):
     """Sort a XXX.json file."""
     try:
         d = json.load(open(filename))
-    except json.JSONDecodeError:
+    except json.JSONDecodeError as e:
+        print(e)
         return False
 
     with open(filename, 'w') as f:
@@ -335,30 +387,75 @@ def sort_json(filename):
     return True
 
 
+def sort_db_text(n):
+    rows = []
+    with open(n) as f:
+        for l in f:
+            rows.append(([extract_num(s) for s in l.split()], l))
+
+    rows.sort(key=lambda i: i[0])
+
+    with open(n, 'w') as f:
+        for l in rows:
+            f.write(l[-1])
+
+    return True
+
+
+def sort_file(n):
+
+    assert os.path.exists(n)
+
+    base, ext = os.path.splitext(n)
+    dirname, base = os.path.split(base)
+
+    # Leave db files with fuzzer of origin untouched
+    if "origin_info" in n and not base.startswith('segbits'):
+        print("Ignoring     file {:45s}".format(n), flush=True)
+        return
+
+    if ext == '.db':
+        print("Sorting DB   file {:45s}".format(n), end=" ", flush=True)
+        x = sort_db(n)
+    elif ext == '.json':
+        print("Sorting JSON file {:45s}".format(n), end=" ", flush=True)
+        x = sort_json(n)
+    elif ext in ('.csv', '.txt'):
+        if n.endswith('-db.txt'):
+            print("Sorting txt  file {:45s}".format(n), end=" ", flush=True)
+            x = sort_db_text(n)
+        else:
+            print("Sorting CSV  file {:45s}".format(n), end=" ", flush=True)
+            x = sort_csv(n)
+    else:
+        print("Ignoring     file {:45s}".format(n), end=" ", flush=True)
+        x = True
+    if x:
+        print(".. success.")
+    else:
+        print(".. failed.")
+
+
+def sort_dir(dirname):
+    for n in sorted(os.listdir(dirname)):
+        n = os.path.join(dirname, n)
+        if os.path.isdir(n):
+            print("Entering     dir  {:45s}".format(n), flush=True)
+            sort_dir(n)
+            continue
+        elif not os.path.isfile(n):
+            print("Ignoring non-file {:45s}".format(n), flush=True)
+            continue
+
+        sort_file(n)
+
+
 def main(argv):
-    for n in sorted(os.listdir()):
-        if not os.path.isfile(n):
-            continue
-        # Leave db files with fuzzer of origin untouched
-        if "origin_info" in n:
-            continue
-
-        base, ext = os.path.splitext(n)
-
-        if ext == '.db':
-            print("Sorting DB   file {:40s}".format(n), end=" ", flush=True)
-            x = sort_db(n)
-        elif ext == '.json':
-            print("Sorting JSON file {:40s}".format(n), end=" ", flush=True)
-            x = sort_json(n)
-        else:
-            print("Ignoring    file {:40s}".format(n), end=" ", flush=True)
-            x = True
-        if x:
-            print(".. success.")
-        else:
-            print(".. failed.")
-
+    if argv[1:]:
+        for n in argv[1:]:
+            sort_file(n)
+    else:
+        sort_dir('.')
     return 0
 
 
diff --git a/utils/xjson.py b/utils/xjson.py
index 77eaf515..4e670be7 100755
--- a/utils/xjson.py
+++ b/utils/xjson.py
@@ -4,6 +4,9 @@ import json
 import re
 import sys
 
+from collections import OrderedDict
+from ordered_set import OrderedSet
+
 
 def extract_numbers(s):
     """
@@ -22,6 +25,31 @@ def extract_numbers(s):
 
 
 def sort(data):
+    """Sort data types via "natural" numbers.
+
+    Supports all the basic Python data types.
+    >>> o = sort({
+    ...    't1': {'c','b'},          # Set
+    ...    't2': ('a2', 'a10', 'e'), # Tuple
+    ...    't3': [5, 3, 2],          # List
+    ...    't4': {                   # Dictionary
+    ...        'a4': ('b2', 'b3'),
+    ...        'a2': ['c1', 'c2', 'c0', 'c10'],
+    ...    },
+    ...    't5': ['a1b5', 'a2b1', 'a1b1'],
+    ... })
+    >>> for t in o:
+    ...    print(t+':', o[t])
+    t1: OrderedSet(['b', 'c'])
+    t2: ('a2', 'a10', 'e')
+    t3: (2, 3, 5)
+    t4: OrderedDict([('a2', ('c0', 'c1', 'c2', 'c10')), ('a4', ('b2', 'b3'))])
+    t5: ('a1b1', 'a1b5', 'a2b1')
+
+    Don't mangle "pairs"
+    >>> sort([('b', 'c'), ('2', '1')])
+    [('b', 'c'), ('2', '1')]
+    """
     # FIXME: We assume that a list is a tileconn.json format...
     if isinstance(data, list) and len(data) > 0 and 'wire_pairs' in data[0]:
         for o in data:
@@ -29,25 +57,64 @@ def sort(data):
                 key=lambda o: (extract_numbers(o[0]), extract_numbers(o[1])))
 
         data.sort(key=lambda o: (o['tile_types'], o['grid_deltas']))
+        return data
     else:
 
-        def walker(o, f):
+        def key(o):
+            if o is None:
+                return None
+            elif isinstance(o, str):
+                return extract_numbers(o)
+            elif isinstance(o, int):
+                return o
+            elif isinstance(o, (list, tuple)):
+                return tuple(key(i) for i in o)
+            elif isinstance(o, dict):
+                return tuple((key(k), key(v)) for k, v in o.items())
+            elif isinstance(o, set):
+                return tuple(key(k) for k in o)
+            raise ValueError(repr(o))
+
+        def rsorter(o):
             if isinstance(o, dict):
-                for i in o.values():
-                    walker(i, f)
-            elif isinstance(o, list):
+                nitems = []
+                for k, v in o.items():
+                    nitems.append((key(k), k, rsorter(v)))
+                nitems.sort(key=lambda n: n[0])
+
+                new_dict = OrderedDict()
+                for _, k, v in nitems:
+                    new_dict[k] = v
+                return new_dict
+
+            elif isinstance(o, set):
+                nitems = []
+                for k in o:
+                    nitems.append((key(k), k))
+                nitems.sort(key=lambda n: n[0])
+
+                new_set = OrderedSet()
+                for _, k in nitems:
+                    new_set.add(k)
+                return new_set
+
+            elif isinstance(o, (tuple, list)):
+                if len(o) == 2:
+                    return o
+
+                nlist = []
                 for i in o:
-                    walker(i, f)
-            f(o)
+                    nlist.append((key(i), rsorter(i)))
+                nlist.sort(key=lambda n: n[0])
 
-        def f(o):
-            if isinstance(o, list):
-                if len(o) > 2:
-                    strings = all(isinstance(x, str) for x in o)
-                    if strings:
-                        o.sort()
+                new_list = []
+                for _, i in nlist:
+                    new_list.append(i)
+                return tuple(new_list)
+            else:
+                return o
 
-        walker(data, f)
+        return rsorter(data)
 
 
 def pprint(f, data):
@@ -55,8 +122,8 @@ def pprint(f, data):
     if not isinstance(f, io.TextIOBase):
         detach = True
         f = io.TextIOWrapper(f)
-    sort(data)
-    json.dump(data, f, sort_keys=True, indent=4)
+    data = sort(data)
+    json.dump(data, f, indent=4)
     f.write('\n')
     f.flush()
     if detach: