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feat(stdlib): add Os.* — the OS/environment interface (#21)
An Os.* namespace, Go-flavored and game-scoped, for the environment *around*
the game: the command line, environment variables, standard streams, process
exit, the host platform, and the per-user known folders a game writes into.
Rounds the bare System.* builtins (arg/getenv/exit) into one coherent surface.

  - args / arg_count / arg     the argument vector (args() -> []string)
  - env / env_or / has_env     read env vars (null-safe via env_or)
  - set_env / unset_env        mutate this process's environment
  - exit(code)                 terminate with a status code
  - platform() / arch()        host facts (uname sysname/machine)
  - stdout_write / stderr_write  raw writes to the standard streams
  - save_dir / config_dir / cache_dir / temp_dir   per-user known folders

Pure libc over NUL-terminated strings; C-free, no new runtime. arg_count/arg/
exit stay light (no prelude) as thin aliases of the existing intrinsics; the
rest share one Os runtime prelude emitted on demand (g_uses_osrt). platform()
is portable (uname system name is field 0 on every Unix); arch() and the
known-folder layout follow the macOS/BSD conventions — the fully supported
native target today. Linux/Windows/wasm folder resolution and a target-aware
arch() are documented follow-ups.

- examples/library/os.ludic: asserts the invariants that hold regardless of
  host — env round-trip, env_or fallback, unset, args()==arg_count(), non-empty
  platform/arch and known dirs. Wired into `x test` (now 54 passed).
- docs: a new Os section + 17 per-symbol pages; inventory updated; every fence
  passes check-docs (--fmt) and the site builds via docgen.
- seed regenerated; `x bootstrap-cfree` fixpoint holds.

Closes #21

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-30 22:19:11 +03:00
..
annotations refactor(lang): rename the ptr/ptrs types to pointer/pointers 2026-08-30 01:58:54 +03:00
builtins refactor(lang): rename builtins flr->floor and fx->fixed 2026-08-30 02:01:56 +03:00
clock feat(stdlib): DateTime format/parse + simulated Clock — completes #9 2026-08-30 03:51:48 +03:00
collision refactor(stdlib): de-abbreviate namespaces (Mem/Sys/Net/Collide) 2026-08-30 01:30:47 +03:00
color feat(stdlib): namespaced standard library (issue #2) 2026-08-30 00:26:19 +03:00
colors docs: add Networking section + process/OS builtins (net_send, owner, is_server, serialize/apply, arg, exit, run, getenv, read_char, file_*) 2026-08-29 16:39:29 +03:00
control feat(stdlib): namespaced standard library (issue #2) 2026-08-30 00:26:19 +03:00
crypto feat(stdlib): finish Crypto (CSPRNG + base64) and add Uuid.* library (#19 #16) 2026-08-30 21:40:51 +03:00
date feat(stdlib): Time/Date/Duration calendar-clock core (issue #9) 2026-08-30 03:37:38 +03:00
datetime feat(stdlib): DateTime format/parse + simulated Clock — completes #9 2026-08-30 03:51:48 +03:00
duration feat(stdlib): Time/Date/Duration calendar-clock core (issue #9) 2026-08-30 03:37:38 +03:00
ease feat(stdlib): Math.exp/log/pow + Ease.elastic transcendentals (issue #25) 2026-08-30 01:19:44 +03:00
ecs refactor(lang): rename the str type (and stringify builtin) to string 2026-08-30 01:51:11 +03:00
events docs(api): per-symbol pages, fuzzy search, deep token linking, hover cards 2026-08-29 17:53:22 +03:00
hash feat(lang,stdlib): 64-bit long type + 64-bit Hash variants (issue #17) 2026-08-30 01:01:06 +03:00
input docs(api): per-symbol pages, fuzzy search, deep token linking, hover cards 2026-08-29 17:53:22 +03:00
list feat(stdlib): sorting toolkit — sort_by/sort_desc_by/sort_with + stable merge sort (#11) 2026-08-30 11:39:26 +03:00
log feat(stdlib): add Log.* — levelled, structured logging (#15) 2026-08-30 21:57:22 +03:00
map docs(api): per-symbol pages, fuzzy search, deep token linking, hover cards 2026-08-29 17:53:22 +03:00
math refactor(lang): rename builtins flr->floor and fx->fixed 2026-08-30 02:01:56 +03:00
memory refactor(lang): rename the ptr/ptrs types to pointer/pointers 2026-08-30 01:58:54 +03:00
network docs: merge duplicate networking namespace dirs; guard against recurrence 2026-08-30 16:46:21 +03:00
noise feat(stdlib): add Noise.* — deterministic fixed-point procedural noise (#3) 2026-08-30 21:50:50 +03:00
operators refactor(lang): rename the ptr/ptrs types to pointer/pointers 2026-08-30 01:58:54 +03:00
os feat(stdlib): add Os.* — the OS/environment interface (#21) 2026-08-30 22:19:11 +03:00
phases docs(api): per-symbol pages, fuzzy search, deep token linking, hover cards 2026-08-29 17:53:22 +03:00
random feat(stdlib): namespaced standard library (issue #2) 2026-08-30 00:26:19 +03:00
save feat(stdlib): namespaced standard library (issue #2) 2026-08-30 00:26:19 +03:00
scenes docs(api): per-symbol pages, fuzzy search, deep token linking, hover cards 2026-08-29 17:53:22 +03:00
screen feat(stdlib): namespaced standard library (issue #2) 2026-08-30 00:26:19 +03:00
structure refactor(lang): rename builtins flr->floor and fx->fixed 2026-08-30 02:01:56 +03:00
system refactor(lang): rename the ptr/ptrs types to pointer/pointers 2026-08-30 01:58:54 +03:00
text refactor(lang): rename the str type (and stringify builtin) to string 2026-08-30 01:51:11 +03:00
time feat(stdlib): Time/Date/Duration calendar-clock core (issue #9) 2026-08-30 03:37:38 +03:00
types feat(stdlib): 2D Vector type + Vector.* namespace (issue #25) 2026-08-30 02:09:38 +03:00
uuid feat(stdlib): finish Crypto (CSPRNG + base64) and add Uuid.* library (#19 #16) 2026-08-30 21:40:51 +03:00
vector feat(stdlib): 2D Vector type + Vector.* namespace (issue #25) 2026-08-30 02:09:38 +03:00
world feat(stdlib): namespaced standard library (issue #2) 2026-08-30 00:26:19 +03:00