2026-09-19 01:40:34 +02:00
12 changed files with 725 additions and 20 deletions
@@ -33,6 +33,14 @@ replacement, and each removed path, column or flag.
  code the IANA registry lists with a plain reason phrase; and `misc.mimetype` each
  type mime-db records as IANA-registered and gives a filename extension.
  `DATA-LICENSES.md` lists each source.
+- `misc.timezone`, `misc.car` and `misc.useragent` are tables too. `misc.timezone`
+  is tzdb `zone.tab`'s zone for each shipped territory, with `offset` holding the
+  zone's standard UTC offset and `territory` linking to `misc.territory`, so
+  `misc.territory[SE].timezone` draws `Europe/Stockholm`; zones of a territory
+  `misc.territory` does not ship, Antarctica's among them, and the constant `UTC`
+  are gone. `misc.useragent` is the top-user-agents desktop and mobile lists with
+  `browser`, `device` and `os` columns. `misc.car` keeps its makes and models, with
+  `misc.car.maker` renamed `misc.car.make`.
 - `geo.SE` and `geo.US`: five linked tables per country, `region`, `municipality`,
  `locality`, `postal-code` and `street`, weighted by population and address counts
  and built from SCB, GeoNames, Trafikverket NVDB and the US Census Bureau, and an
@@ -14,11 +14,14 @@ Every shipped dataset, its source, its licence and the attribution it asks for.
 | `sv_SE/first-name.tsv`, `last-name.tsv` | [SCB](https://www.scb.se/) names with at least two bearers, 31 December 2022 | CC0 1.0 | "Källa: SCB" | `data-import/names-se.py` |
 | `en_US/first-name.tsv` | [SSA](https://www.ssa.gov/oact/babynames/) baby names, births 1930 to 2020, through [hackerb9/ssa-baby-names](https://github.com/hackerb9/ssa-baby-names) | public domain | none required | `data-import/names-us.py` |
 | `en_US/last-name.tsv` | Census Bureau surnames occurring 100 or more times, 2010 | public domain | none required | `data-import/names-us.py` |
+| `misc/car.tsv` | curated makes and models, pending an international source (goal 10) | — | — | — |
 | `sv_SE/sex.tsv`, `sv_SE/birth-number.tsv`, `sv_SE/title.tsv`, `en_US/sex.tsv`, `en_US/title.tsv` | curated (Skatteverket's test birth numbers are facts) | — | — | — |
 | `misc/territory.tsv` | [datasets/country-codes](https://github.com/datasets/country-codes) | [PDDL 1.0](https://opendatacommons.org/licenses/pddl/1-0/) | none required | `data-import/territory.py` |
 | `misc/currency.tsv` | [datasets/currency-codes](https://github.com/datasets/currency-codes); symbols from [Unicode CLDR](https://github.com/unicode-org/cldr) `en.xml` and `root.xml` | PDDL 1.0; [Unicode License v3](https://www.unicode.org/license.txt) | CLDR: "Copyright © 1991-2025 Unicode, Inc. Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the United States and other countries." | `data-import/currency.py` |
 | `misc/httpstatus.tsv` | [IANA HTTP Status Code Registry](https://www.iana.org/assignments/http-status-codes/) | [public domain](https://www.iana.org/help/licensing-terms) | none required | `data-import/httpstatus.py` |
 | `misc/language.tsv` | [datasets/language-codes](https://github.com/datasets/language-codes), the [Library of Congress](https://www.loc.gov/standards/iso639-2/) ISO 639-2 register | [PDDL 1.0](https://opendatacommons.org/licenses/pddl/1-0/) | none required | `data-import/language.py` |
 | `misc/mimetype.tsv` | [mime-db](https://github.com/jshttp/mime-db), the IANA media type registry with filename extensions | [MIT](https://github.com/jshttp/mime-db/blob/master/LICENSE) | "Copyright (c) 2014 Jonathan Ong, Copyright (c) 2015-2022 Douglas Christopher Wilson" | `data-import/mimetype.py` |
+| `misc/timezone.tsv` | [IANA tzdb](https://www.iana.org/time-zones) `zone.tab` and the standard offset of each zone | [public domain](https://data.iana.org/time-zones/tzdb/LICENSE) | none required | `data-import/timezone.py` |
+| `misc/useragent.tsv` | [top-user-agents](https://github.com/microlinkhq/top-user-agents) desktop and mobile lists | [MIT](https://github.com/microlinkhq/top-user-agents/blob/master/LICENSE.md) | "Copyright © 2020 Kiko Beats" | `data-import/useragent.py` |

 Every other category is hand-written JSON under [`data/`](data), MIT like the code.
@@ -165,11 +165,19 @@ carries `car`, `coordinate`, `creditcard` (Luhn-valid), `currency` (ISO 4217),
 `datetime` (RFC 3339), `emoji`, `httpstatus`, `language` (ISO 639-1, with its
 639-2/T code), `mac`, `mimetype`, `objectid`, `territory` (ISO 3166-1), `timezone`
 (IANA), `useragent` and `uuid` (v4). Many carry sub-fields — `misc.currency.symbol`,
-`misc.territory.alpha2`, `misc.httpstatus.code` — which `--list` shows. `currency`,
-`httpstatus`, `language`, `mimetype` and `territory` are [tables](#table), so
-`misc.territory[SE].capital` and `misc.currency[Euro].symbol` select a row;
+`misc.territory.alpha2`, `misc.httpstatus.code` — which `--list` shows. `car`,
+`currency`, `httpstatus`, `language`, `mimetype`, `territory`, `timezone` and
+`useragent` are [tables](#table), so `misc.territory[SE].capital` and
+`misc.currency[Euro].symbol` select a row;
 [`DATA-LICENSES.md`](DATA-LICENSES.md) names each table's source and licence.

+`misc.timezone` is tzdb's zone for a territory, with the territory's code and the
+zone's standard offset — not the offset in force on any given date, which a zone
+name is what you store precisely to avoid. It links to `misc.territory`, so
+`misc.territory[SE].timezone` is `Europe/Stockholm` and a drawn territory and zone
+agree. `misc.useragent` carries `browser`, `device` and `os` beside the string, and
+`misc.car` a `make` and a `model`.
+
 ISO 3166-1 codes territories, not sovereign states, so that is what the table is
 called: Greenland and Åland have codes of their own, and `misc.territory.country`
 names the state each belongs to — `DK` for Greenland, `FI` for Åland, and its own
@@ -1153,7 +1161,8 @@ App developers writing tests and fixtures, in Go and at a shell:
  import drops the child rows whose territory the set does not ship — 17 of
  `misc.timezone`'s, Antarctica's ten among them. Agreement across a record is
  worth more than the last rows of a table. Where no such link can hold the fact
-  stays a column.
+  stays a column. Layer your own `misc.territory` over the shipped one and you
+  must layer `misc.timezone` too, or the link fails at load naming the row.
 - **`misc.territory` names its sovereign in a column, and there is no `misc.country`
  table.** ISO 3166-1 codes territories, so `territory` is the honest name, and
  `is_independent` in the register gives each one's state. A second table of the 195
@@ -1248,15 +1257,17 @@ and `names-us.py` rejects a client for a while after a burst, so `--surnames` ta
 a copy of the surname file:

 ```sh
-docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/territory.py
 docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/currency.py
-docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/geo-us.py
 docker compose run --rm --user "$(id -u):$(id -g)" -e TRAFIKVERKET_API_KEY data-import data-import/geo-se.py
+docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/geo-us.py
 docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/httpstatus.py
 docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/language.py
 docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/mimetype.py
 docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/names-se.py
 docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/names-us.py
+docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/territory.py
+docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/timezone.py
+docker compose run --rm --user "$(id -u):$(id -g)" data-import data-import/useragent.py
 ```

 To release, head `CHANGELOG.md` with the version's section in place of `Unreleased`
@@ -0,0 +1,105 @@
+#!/usr/bin/env python3
+"""Rebuild data/misc/timezone.tsv from the IANA tzdb tarball (public domain).
+
+    data-import/timezone.py [--source URL_OR_FILE] [--cache DIR] [--out FILE] [--territories FILE]
+
+zone.tab names one zone per territory, so Europe/Stockholm ships where zone1970.tab
+would spell Sweden Europe/Berlin. The offset is the zone's standard offset, the first
+field of its Zone rule's last continuation line, with a Link resolved to its target.
+"""
+import argparse
+import csv
+import io
+import re
+import sys
+import tarfile
+from pathlib import Path
+
+import source
+import tsv
+
+SOURCE = "https://data.iana.org/time-zones/tzdata-latest.tar.gz"
+OUT = Path(__file__).resolve().parent.parent / "data" / "misc" / "timezone.tsv"
+TERRITORIES = Path(__file__).resolve().parent.parent / "data" / "misc" / "territory.tsv"
+CACHE = Path(__file__).resolve().parent / "cache"
+COLUMNS = ["offset", "territory", "zone"]
+REGIONS = ["africa", "antarctica", "asia", "australasia", "backward", "etcetera", "europe", "northamerica", "southamerica"]
+
+
+def offsets(tar):
+    """Every zone's standard offset, and every link's target."""
+    std, links = {}, {}
+    for name in REGIONS:
+        zone = None
+        for raw in tar.extractfile(name).read().decode("utf-8").splitlines():
+            line = raw.split("#")[0].rstrip()
+            if not line.strip():
+                continue
+            if line.startswith("Zone"):
+                f = line.split()
+                zone, std[f[1]] = f[1], f[2]
+            elif line.startswith("Link"):
+                f = line.split()
+                links[f[2]], zone = f[1], None
+            elif line[0] in " \t" and zone:
+                std[zone] = line.split()[0]
+            else:
+                zone = None
+    return std, links
+
+
+def resolve(zone, std, links):
+    for _ in range(10):
+        if zone in std:
+            return std[zone]
+        if zone not in links:
+            return None
+        zone = links[zone]
+    return None
+
+
+def utc_offset(raw):
+    """±HH:MM from a tzdb STDOFF field; a zone still off by seconds is not one we can spell."""
+    m = re.match(r"^(-)?(\d{1,2}):(\d{2})(?::(\d{2}))?$", raw)
+    if not m or (m.group(4) or "00") != "00":
+        return None
+    return f"{'-' if m.group(1) else '+'}{int(m.group(2)):02d}:{m.group(3)}"
+
+
+def rows(tar, territories):
+    std, links = offsets(tar)
+    for line in tar.extractfile("zone.tab").read().decode("utf-8").splitlines():
+        if line.startswith("#") or not line.strip():
+            continue
+        territory, _, zone = line.split("\t")[:3]
+        if territory not in territories:
+            continue
+        raw = resolve(zone, std, links)
+        if raw is None:
+            sys.exit(f"{zone}: the tarball gives it no Zone rule and no Link to one")
+        offset = utc_offset(raw)
+        if offset is None:
+            sys.exit(f"{zone}: standard offset {raw!r} is not a whole number of minutes")
+        yield {"offset": offset, "territory": territory, "zone": zone}
+
+
+def main():
+    p = argparse.ArgumentParser(description=__doc__.splitlines()[0])
+    p.add_argument("--cache", default=str(CACHE))
+    p.add_argument("--source", default=SOURCE)
+    p.add_argument("--out", default=str(OUT))
+    p.add_argument("--territories", default=str(TERRITORIES))
+    a = p.parse_args()
+    shipped = {r["alpha2"] for r in csv.DictReader(io.StringIO(Path(a.territories).read_text(encoding="utf-8")), delimiter="\t")}
+    body = source.fetch(a.source, a.cache, "tzdata-latest.tar.gz", magic=b"\x1f\x8b")
+    with tarfile.open(fileobj=io.BytesIO(body)) as tar:
+        table = sorted(rows(tar, shipped), key=lambda r: r["zone"])
+        print(f"tzdb {tar.extractfile('version').read().decode('utf-8').strip()}", file=sys.stderr)
+    linked = {r["territory"] for r in table}
+    if missing := shipped - linked:
+        sys.exit(f"no zone for {sorted(missing)}; a parent row without a child is a load error")
+    tsv.write(a.out, COLUMNS, table)
+
+
+if __name__ == "__main__":
+    main()
@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+"""Rebuild data/misc/useragent.tsv from microlinkhq/top-user-agents (MIT).
+
+    data-import/useragent.py [--source URL] [--cache DIR] [--out FILE]
+
+The desktop and mobile lists partition the whole, so `device` is read rather than
+parsed. A row ships when the string names a browser and an operating system both.
+"""
+import argparse
+import json
+import re
+from pathlib import Path
+
+import source
+import tsv
+
+SOURCE = "https://raw.githubusercontent.com/microlinkhq/top-user-agents/master/src"
+OUT = Path(__file__).resolve().parent.parent / "data" / "misc" / "useragent.tsv"
+CACHE = Path(__file__).resolve().parent / "cache"
+COLUMNS = ["browser", "device", "os", "ua"]
+# First match wins: Edge, Opera and Samsung Internet all carry Chrome's token too,
+# and an iPhone says "like Mac OS X".
+BROWSERS = [("Edge", r"Edg(iOS)?/"), ("Opera", r"OPR/"), ("Samsung Internet", r"SamsungBrowser/"),
+            ("Chrome", r"(Chrome|CriOS)/"), ("Firefox", r"(Firefox|FxiOS)/"), ("Safari", r"Version/[\d.]+ .*Safari")]
+SYSTEMS = [("iOS", r"iPhone|iPad|CPU OS "), ("Android", r"Android"), ("ChromeOS", r"CrOS"),
+           ("Windows", r"Windows NT"), ("macOS", r"Macintosh|Mac OS X"), ("Linux", r"X11.*Linux|Ubuntu")]
+
+
+def named(table, ua):
+    for name, pattern in table:
+        if re.search(pattern, ua):
+            return name
+    return ""
+
+
+def rows(desktop, mobile):
+    for device, uas in (("desktop", desktop), ("mobile", mobile)):
+        for ua in uas:
+            browser, os = named(BROWSERS, ua), named(SYSTEMS, ua)
+            if browser and os:
+                yield {"browser": browser, "device": device, "os": os, "ua": ua}
+
+
+def main():
+    p = argparse.ArgumentParser(description=__doc__.splitlines()[0])
+    p.add_argument("--cache", default=str(CACHE))
+    p.add_argument("--source", default=SOURCE)
+    p.add_argument("--out", default=str(OUT))
+    a = p.parse_args()
+    lists = [json.loads(source.fetch(f"{a.source}/{n}.json", a.cache, f"top-user-agents-{n}.json")) for n in ("desktop", "mobile")]
+    tsv.write(a.out, COLUMNS, sorted(rows(*lists), key=lambda r: (r["browser"], r["os"], r["ua"])))
+
+
+if __name__ == "__main__":
+    main()
@@ -1,10 +1 @@
-[
-  { "format": "{maker} {model}", "maker": "BMW", "model": ["3 Series", "5 Series", "X3", "X5"] },
-  { "format": "{maker} {model}", "maker": "Ford", "model": ["Fiesta", "Focus", "Mustang", "Explorer"] },
-  { "format": "{maker} {model}", "maker": "Honda", "model": ["Civic", "Accord", "CR-V", "Jazz"] },
-  { "format": "{maker} {model}", "maker": "Mercedes-Benz", "model": ["A-Class", "C-Class", "E-Class", "GLC"] },
-  { "format": "{maker} {model}", "maker": "Tesla", "model": ["Model 3", "Model S", "Model X", "Model Y"] },
-  { "format": "{maker} {model}", "maker": "Toyota", "model": ["Corolla", "Camry", "RAV4", "Yaris"] },
-  { "format": "{maker} {model}", "maker": "Volkswagen", "model": ["Golf", "Passat", "Polo", "Tiguan"] },
-  { "format": "{maker} {model}", "maker": "Volvo", "model": ["XC40", "XC60", "XC90", "V60"] }
-]
+{ "format": "{make} {model}", "rows": "car.tsv" }
@@ -0,0 +1,33 @@
+make	model
+BMW	3 Series
+BMW	5 Series
+BMW	X3
+BMW	X5
+Ford	Explorer
+Ford	Fiesta
+Ford	Focus
+Ford	Mustang
+Honda	Accord
+Honda	CR-V
+Honda	Civic
+Honda	Jazz
+Mercedes-Benz	A-Class
+Mercedes-Benz	C-Class
+Mercedes-Benz	E-Class
+Mercedes-Benz	GLC
+Tesla	Model 3
+Tesla	Model S
+Tesla	Model X
+Tesla	Model Y
+Toyota	Camry
+Toyota	Corolla
+Toyota	RAV4
+Toyota	Yaris
+Volkswagen	Golf
+Volkswagen	Passat
+Volkswagen	Polo
+Volkswagen	Tiguan
+Volvo	V60
+Volvo	XC40
+Volvo	XC60
+Volvo	XC90
@@ -1 +1 @@
-["UTC", "Africa/Cairo", "Africa/Johannesburg", "America/Chicago", "America/Denver", "America/Los_Angeles", "America/Mexico_City", "America/New_York", "America/Sao_Paulo", "America/Toronto", "Asia/Dubai", "Asia/Hong_Kong", "Asia/Kolkata", "Asia/Shanghai", "Asia/Singapore", "Asia/Tokyo", "Australia/Sydney", "Europe/Amsterdam", "Europe/Berlin", "Europe/London", "Europe/Madrid", "Europe/Moscow", "Europe/Oslo", "Europe/Paris", "Europe/Stockholm", "Europe/Warsaw", "Pacific/Auckland"]
+{ "format": "{zone}", "rows": "timezone.tsv", "key": "zone", "parent": "territory" }
@@ -0,0 +1,402 @@
+offset	territory	zone
+00:00	CI	Africa/Abidjan
+00:00	GH	Africa/Accra
+03:00	ET	Africa/Addis_Ababa
+01:00	DZ	Africa/Algiers
+03:00	ER	Africa/Asmara
+00:00	ML	Africa/Bamako
+01:00	CF	Africa/Bangui
+00:00	GM	Africa/Banjul
+00:00	GW	Africa/Bissau
+02:00	MW	Africa/Blantyre
+01:00	CG	Africa/Brazzaville
+02:00	BI	Africa/Bujumbura
+02:00	EG	Africa/Cairo
+00:00	MA	Africa/Casablanca
+01:00	ES	Africa/Ceuta
+00:00	GN	Africa/Conakry
+00:00	SN	Africa/Dakar
+03:00	TZ	Africa/Dar_es_Salaam
+03:00	DJ	Africa/Djibouti
+01:00	CM	Africa/Douala
+00:00	EH	Africa/El_Aaiun
+00:00	SL	Africa/Freetown
+02:00	BW	Africa/Gaborone
+02:00	ZW	Africa/Harare
+02:00	ZA	Africa/Johannesburg
+02:00	SS	Africa/Juba
+03:00	UG	Africa/Kampala
+02:00	SD	Africa/Khartoum
+02:00	RW	Africa/Kigali
+01:00	CD	Africa/Kinshasa
+01:00	NG	Africa/Lagos
+01:00	GA	Africa/Libreville
+00:00	TG	Africa/Lome
+01:00	AO	Africa/Luanda
+02:00	CD	Africa/Lubumbashi
+02:00	ZM	Africa/Lusaka
+01:00	GQ	Africa/Malabo
+02:00	MZ	Africa/Maputo
+02:00	LS	Africa/Maseru
+02:00	SZ	Africa/Mbabane
+03:00	SO	Africa/Mogadishu
+00:00	LR	Africa/Monrovia
+03:00	KE	Africa/Nairobi
+01:00	TD	Africa/Ndjamena
+01:00	NE	Africa/Niamey
+00:00	MR	Africa/Nouakchott
+00:00	BF	Africa/Ouagadougou
+01:00	BJ	Africa/Porto-Novo
+00:00	ST	Africa/Sao_Tome
+02:00	LY	Africa/Tripoli
+01:00	TN	Africa/Tunis
+02:00	NA	Africa/Windhoek
+-10:00	US	America/Adak
+-09:00	US	America/Anchorage
+-04:00	AI	America/Anguilla
+-04:00	AG	America/Antigua
+-03:00	BR	America/Araguaina
+-03:00	AR	America/Argentina/Buenos_Aires
+-03:00	AR	America/Argentina/Catamarca
+-03:00	AR	America/Argentina/Cordoba
+-03:00	AR	America/Argentina/Jujuy
+-03:00	AR	America/Argentina/La_Rioja
+-03:00	AR	America/Argentina/Mendoza
+-03:00	AR	America/Argentina/Rio_Gallegos
+-03:00	AR	America/Argentina/Salta
+-03:00	AR	America/Argentina/San_Juan
+-03:00	AR	America/Argentina/San_Luis
+-03:00	AR	America/Argentina/Tucuman
+-03:00	AR	America/Argentina/Ushuaia
+-04:00	AW	America/Aruba
+-03:00	PY	America/Asuncion
+-05:00	CA	America/Atikokan
+-03:00	BR	America/Bahia
+-06:00	MX	America/Bahia_Banderas
+-04:00	BB	America/Barbados
+-03:00	BR	America/Belem
+-06:00	BZ	America/Belize
+-04:00	CA	America/Blanc-Sablon
+-04:00	BR	America/Boa_Vista
+-05:00	CO	America/Bogota
+-07:00	US	America/Boise
+-07:00	CA	America/Cambridge_Bay
+-04:00	BR	America/Campo_Grande
+-05:00	MX	America/Cancun
+-04:00	VE	America/Caracas
+-03:00	GF	America/Cayenne
+-05:00	KY	America/Cayman
+-06:00	US	America/Chicago
+-06:00	MX	America/Chihuahua
+-07:00	MX	America/Ciudad_Juarez
+-06:00	CR	America/Costa_Rica
+-03:00	CL	America/Coyhaique
+-07:00	CA	America/Creston
+-04:00	BR	America/Cuiaba
+-04:00	CW	America/Curacao
+00:00	GL	America/Danmarkshavn
+-07:00	CA	America/Dawson
+-07:00	CA	America/Dawson_Creek
+-07:00	US	America/Denver
+-05:00	US	America/Detroit
+-04:00	DM	America/Dominica
+-06:00	CA	America/Edmonton
+-05:00	BR	America/Eirunepe
+-06:00	SV	America/El_Salvador
+-07:00	CA	America/Fort_Nelson
+-03:00	BR	America/Fortaleza
+-04:00	CA	America/Glace_Bay
+-04:00	CA	America/Goose_Bay
+-05:00	TC	America/Grand_Turk
+-04:00	GD	America/Grenada
+-04:00	GP	America/Guadeloupe
+-06:00	GT	America/Guatemala
+-05:00	EC	America/Guayaquil
+-04:00	GY	America/Guyana
+-04:00	CA	America/Halifax
+-05:00	CU	America/Havana
+-07:00	MX	America/Hermosillo
+-05:00	US	America/Indiana/Indianapolis
+-06:00	US	America/Indiana/Knox
+-05:00	US	America/Indiana/Marengo
+-05:00	US	America/Indiana/Petersburg
+-06:00	US	America/Indiana/Tell_City
+-05:00	US	America/Indiana/Vevay
+-05:00	US	America/Indiana/Vincennes
+-05:00	US	America/Indiana/Winamac
+-06:00	CA	America/Inuvik
+-05:00	CA	America/Iqaluit
+-05:00	JM	America/Jamaica
+-09:00	US	America/Juneau
+-05:00	US	America/Kentucky/Louisville
+-05:00	US	America/Kentucky/Monticello
+-04:00	BO	America/La_Paz
+-05:00	PE	America/Lima
+-08:00	US	America/Los_Angeles
+-04:00	SX	America/Lower_Princes
+-03:00	BR	America/Maceio
+-06:00	NI	America/Managua
+-04:00	BR	America/Manaus
+-04:00	MF	America/Marigot
+-04:00	MQ	America/Martinique
+-06:00	MX	America/Matamoros
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+01:00	DK	Europe/Copenhagen
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+01:00	GI	Europe/Gibraltar
+00:00	GG	Europe/Guernsey
+02:00	FI	Europe/Helsinki
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+03:00	TR	Europe/Istanbul
+00:00	JE	Europe/Jersey
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+03:00	RU	Europe/Kirov
+02:00	UA	Europe/Kyiv
+00:00	PT	Europe/Lisbon
+01:00	SI	Europe/Ljubljana
+00:00	GB	Europe/London
+01:00	LU	Europe/Luxembourg
+01:00	ES	Europe/Madrid
+01:00	MT	Europe/Malta
+02:00	AX	Europe/Mariehamn
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+01:00	MC	Europe/Monaco
+03:00	RU	Europe/Moscow
+01:00	NO	Europe/Oslo
+01:00	FR	Europe/Paris
+01:00	ME	Europe/Podgorica
+01:00	CZ	Europe/Prague
+02:00	LV	Europe/Riga
+01:00	IT	Europe/Rome
+04:00	RU	Europe/Samara
+01:00	SM	Europe/San_Marino
+01:00	BA	Europe/Sarajevo
+04:00	RU	Europe/Saratov
+03:00	UA	Europe/Simferopol
+01:00	MK	Europe/Skopje
+02:00	BG	Europe/Sofia
+01:00	SE	Europe/Stockholm
+02:00	EE	Europe/Tallinn
+01:00	AL	Europe/Tirane
+04:00	RU	Europe/Ulyanovsk
+01:00	LI	Europe/Vaduz
+01:00	VA	Europe/Vatican
+01:00	AT	Europe/Vienna
+02:00	LT	Europe/Vilnius
+03:00	RU	Europe/Volgograd
+01:00	PL	Europe/Warsaw
+01:00	HR	Europe/Zagreb
+01:00	CH	Europe/Zurich
+03:00	MG	Indian/Antananarivo
+06:00	IO	Indian/Chagos
+07:00	CX	Indian/Christmas
+06:30	CC	Indian/Cocos
+03:00	KM	Indian/Comoro
+05:00	TF	Indian/Kerguelen
+04:00	SC	Indian/Mahe
+05:00	MV	Indian/Maldives
+04:00	MU	Indian/Mauritius
+03:00	YT	Indian/Mayotte
+04:00	RE	Indian/Reunion
+13:00	WS	Pacific/Apia
+12:00	NZ	Pacific/Auckland
+11:00	PG	Pacific/Bougainville
+12:45	NZ	Pacific/Chatham
+10:00	FM	Pacific/Chuuk
+-06:00	CL	Pacific/Easter
+11:00	VU	Pacific/Efate
+12:00	FJ	Pacific/Fiji
+12:00	TV	Pacific/Funafuti
+-06:00	EC	Pacific/Galapagos
+-09:00	PF	Pacific/Gambier
+11:00	SB	Pacific/Guadalcanal
+10:00	GU	Pacific/Guam
+-10:00	US	Pacific/Honolulu
+13:00	KI	Pacific/Kanton
+14:00	KI	Pacific/Kiritimati
+11:00	FM	Pacific/Kosrae
+12:00	MH	Pacific/Kwajalein
+12:00	MH	Pacific/Majuro
+-09:30	PF	Pacific/Marquesas
+12:00	NR	Pacific/Nauru
+-11:00	NU	Pacific/Niue
+11:00	NF	Pacific/Norfolk
+11:00	NC	Pacific/Noumea
+-11:00	AS	Pacific/Pago_Pago
+09:00	PW	Pacific/Palau
+-08:00	PN	Pacific/Pitcairn
+11:00	FM	Pacific/Pohnpei
+10:00	PG	Pacific/Port_Moresby
+-10:00	CK	Pacific/Rarotonga
+10:00	MP	Pacific/Saipan
+-10:00	PF	Pacific/Tahiti
+12:00	KI	Pacific/Tarawa
+13:00	TO	Pacific/Tongatapu
+12:00	WF	Pacific/Wallis
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+Chrome	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.36
+Edge	desktop	Windows	Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36 Edg/151.0.0.0
+Edge	desktop	Windows	Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36 Edg/152.0.0.0
+Edge	desktop	Windows	Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.36 Edg/153.0.0.0
+Edge	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36 Edg/152.0.0.0
+Firefox	desktop	Linux	Mozilla/5.0 (X11; Linux x86_64; rv:155.0) Gecko/20100101 Firefox/155.0
+Firefox	desktop	Windows	Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0
+Firefox	desktop	Windows	Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:154.0) Gecko/20100101 Firefox/154.0
+Firefox	desktop	Windows	Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0
+Firefox	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:154.0) Gecko/20100101 Firefox/154.0
+Firefox	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:155.0) Gecko/20100101 Firefox/155.0
+Opera	desktop	Windows	Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36 OPR/135.0.0.0
+Opera	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.36 OPR/134.0.0.0
+Safari	mobile	iOS	Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Mobile/15E148 Safari/604.1
+Safari	mobile	iOS	Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.7.5 Mobile/15E148 Safari/604.1
+Safari	mobile	iOS	Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.2 Mobile/15E148 Safari/604.1
+Safari	mobile	iOS	Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.3 Mobile/15E148 Safari/604.1
+Safari	mobile	iOS	Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.5 Mobile/15E148 Safari/604.1
+Safari	mobile	iOS	Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.5.2 Mobile/15E148 Safari/604.1
+Safari	mobile	iOS	Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.6 Mobile/15E148 Safari/604.1
+Safari	mobile	iOS	Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.6.1 Mobile/15E148 Safari/604.1
+Safari	mobile	iOS	Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/27.0 Mobile/15E148 Safari/604.1
+Safari	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15
+Safari	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.6 Safari/605.1.15
+Safari	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.2 Safari/605.1.15
+Safari	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.5 Safari/605.1.15
+Safari	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.5.2 Safari/605.1.15
+Safari	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.6 Safari/605.1.15
+Safari	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.6.1 Safari/605.1.15
+Safari	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.6.2 Safari/605.1.15
+Safari	desktop	macOS	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/27.0 Safari/605.1.15
+Samsung Internet	mobile	Android	Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/30.0 Chrome/143.0.0.0 Mobile Safari/537.36
@@ -22,7 +22,7 @@ value is composed; TSV says which values exist.
 - In a data file, refuse a choice whose items are templates with one identical
  field set, naming the TSV to write; an inline template is exempt, having no
  file. A choice of strings stays a choice.
- Convert `misc.timezone`, `car` and `useragent` to tables.
+- Convert `misc.timezone`, `car` and `useragent` to tables — done in step 4.
 - Let a path select a row by key or by name, `geo.SE.municipality[0180]` and
  `geo.SE.municipality[Stockholm]`, and descend to a linked table by name,
  `geo.SE.region[Skåne län].street`; a key or a linked table name may not equal
@@ -137,7 +137,7 @@ ids. Shape: T = table, t = template, c = choice.
 | `timezone` zone, territory, offset | T | tzdb zone.tab | public domain |
 | `mimetype` type, extensions | T | IANA + mime-db | CC0, MIT |
 | `httpstatus`, `httpmethod`, `port`, `tld`, `protocol`, `loglevel` | T/c | IANA | CC0 |
-| `useragent` per browser | T | top-user-agents | MIT |
+| `useragent` browser, device, os; selection per browser once `browser` is a table | T | top-user-agents | MIT |
 | `ip` v4 documentation ranges, private, CIDR; `ipv6` `2001:db8::/32`; `mac` locally administered | t | RFC 5737, 1918, 9637 | facts |
 | `creditcard` per network: IIN, length, CVV, expiry | T+t | network rules, `{luhn()}` | facts |
 | `bic`, `iban` (exists), `isin`, `cusip` | t | structure rules | facts |