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lib: rename stdlib surface to Hare names; add endian/math

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Sweeping rename so the lib/ surface mirrors Hare's stdlib spellings.
- ascii: rune-taking predicates; ishex -> isxdigit
- bufio: rinit -> init; take1/takeline -> readbyte/readline
- bytes: indexsub -> index
- encoding/utf8: runelen -> runesz
- errors: eEOF/eShortRead/... -> eof/underread/...
- fmt: errln -> errorln; println/fprintln return i64
- os: readfull/writefull -> readall/writeall; unlink -> remove
- path: isabs -> abs; drop lastindex (now strings.rbyteindex)
- strconv: u64toa/i64toa -> u64tos/i64tos; parse64/parseu64 -> stoi64/stou64
- strings: drop len/isempty; equal -> compare; indexbyte -> byteindex; +rbyteindex
- types: drop numeric helpers (moved to math)
- new lib/endian (htonu16/ntohu16), lib/math (absi32/absi64)
- net: drop htons (use endian.htonu16)

Callers in selfhost/, lib/ww/, cmd/w6c/cgen.c, and test/wcc/700_e2e.c
updated to match.
This commit is contained in:
Hojun-Cho
2026-05-12 00:45:18 +09:00
parent 35421f2561
commit 1ac1d985f6
37 changed files with 597 additions and 568 deletions
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30
lib/strconv/strconv.ww
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@@ -2,14 +2,16 @@
// buffer. Two error idioms ship side by side:
// - Plan 9 style (atoi64): tuple `(value, ok)`. Pre-dates the
// tagged-union work; kept for callers that already use it.
// - Hare style (parse64/parseu64): `(value | str)`. The error
// - Hare style (stoi64/stou64): `(value | str)`. The error
// variant carries a short, allocation-free message describing
// why the parse failed. Prefer this for new code.
// u64toa — write `v` in decimal into `buf` and return the byte count.
// Unsigned-only so callers don't have to think about wraparound when
// printing a u64 that happens to have the high bit set.
export fn u64toa(buf: []u8, v: u64) i32 = {
// u64tos — write `v` in decimal into `buf` and return the byte count.
// Hare name; the buffer-in shape is the sanctioned Plan 9 subset of
// Hare's `u64tos(u, base) const str`. Unsigned-only so callers don't
// have to think about wraparound when printing a u64 with the high
// bit set.
export fn u64tos(buf: []u8, v: u64) i32 = {
let tmp: [32]u8;
let i: i32 = 0;
let n: u64 = v;
@@ -31,7 +33,7 @@ export fn u64toa(buf: []u8, v: u64) i32 = {
return out;
};
export fn i64toa(buf: []u8, v: i64) i32 = {
export fn i64tos(buf: []u8, v: i64) i32 = {
let neg: bool = false;
let n: i64 = v;
if (n < 0) {
@@ -81,11 +83,12 @@ export fn atoi64(s: str) (i64, bool) = {
return v, true;
};
// parse64 — Hare-style fallible signed decimal parser. The value
// variant is i64; the error variant is a short str describing the
// reason. No locale, no whitespace, no underscores: a leading '-' is
// the only non-digit accepted, and only at position 0.
export fn parse64(s: str) (i64 | str) = {
// stoi64 — Hare-style fallible signed decimal parser. The value
// variant is i64; the error variant is a short str (subset of Hare's
// (invalid | overflow) tagged-union). No locale, no whitespace, no
// underscores: a leading '-' is the only non-digit accepted, and only
// at position 0.
export fn stoi64(s: str) (i64 | str) = {
if (s.len == 0) { return "parse: empty"; };
let i: i32 = 0;
let neg: bool = false;
@@ -103,8 +106,9 @@ export fn parse64(s: str) (i64 | str) = {
return v;
};
// parseu64 — fallible unsigned decimal parser. No leading sign.
export fn parseu64(s: str) (u64 | str) = {
// stou64 — fallible unsigned decimal parser. No leading sign. Mirrors
// Hare's strconv::stou64.
export fn stou64(s: str) (u64 | str) = {
if (s.len == 0) { return "parse: empty"; };
let v: u64 = 0u64;
let i: i32 = 0;