mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-02 08:35:07 +08:00
Chris Tate
7bdd40453a
- scr_qs.c ports Node v24's legacy codec quirk-faithfully (the scan state machine with maxKeys' pair budget, unescapeBuffer's code-unit byte truncation with U+FFFD replacement decode, encodeStringified's value rules over the DOM crossing); link-gated by moduleUsesQs, and escape rides the always-linked component encoder - parse's result is the call site's ParsedUrlQuery dictionary (the networkInterfaces verification stance; the runtime fills the overflow map and groups repeats into string[] buckets), sep/eq/maxKeys complete to Node's defaults, and custom encoder/decoder options fence by name - decode/encode lower as Node's own aliases; both backends emit the same runtime calls byte-identically - querystring joins SUPPORTED_BUILTIN_MODULES, the fallback declarations, and the regenerated surface manifest, so npm-static packages requiring it unguarded stop falling back to the island (the shim stays for island code) - corpus 2460-2464 pin the grammar corners against Node: malformed escapes, '+' vs %2B, repeated keys, maxKeys with empty segments, multi-char/multi-byte separators, astral truncation, and every CJS acquisition spelling
36 lines
2.1 KiB
TypeScript
36 lines
2.1 KiB
TypeScript
// node:querystring.parse — separators and maxKeys (Node is the oracle).
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// Custom sep/eq including multi-character and multi-byte sequences (the
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// scan's naive partial-match resets are quirk-faithful: an overlapping
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// partial match is NOT re-examined, Node's own behavior), the falsy rule
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// (null/undefined/'' all mean the defaults), and maxKeys' pair budget —
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// which empty skipped segments consume too, and which 0 and negatives
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// remove entirely (Node's `maxKeys > 0 ? maxKeys : -1`).
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import { parse } from "node:querystring";
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// Custom separators.
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console.log("S1", JSON.stringify(parse("a:1;b:2", ";", ":")));
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console.log("S2", JSON.stringify(parse("a::1;;b::2", ";;", "::")));
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console.log("S3", JSON.stringify(parse("aXYb=1XYXc=2", "XYX")));
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console.log("S4", JSON.stringify(parse("a==b=c===d", undefined, "==")));
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console.log("S5", JSON.stringify(parse("a=1&b=2", "", "")));
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console.log("S6", JSON.stringify(parse("a☃1;b☃2", ";", "☃")));
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console.log("S7", JSON.stringify(parse("aabX=1", "ab")));
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console.log("S8", JSON.stringify(parse("a=1&b=2", null, null)));
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console.log("S9", JSON.stringify(parse("x🌍y=1&z=2", null, "🌍")));
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// maxKeys: the pair budget.
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console.log("M1", JSON.stringify(parse("a=1&b=2&c=3", null, null, { maxKeys: 2 })));
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console.log("M2", JSON.stringify(parse("a=1&b=2", null, null, { maxKeys: 0 })));
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console.log("M3", JSON.stringify(parse("&&&a=1&b=2", null, null, { maxKeys: 2 })));
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console.log("M4", JSON.stringify(parse("a=1&&b=2&c=3", null, null, { maxKeys: 2 })));
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console.log("M5", JSON.stringify(parse("a=1&b=2&c=3", null, null, { maxKeys: -5 })));
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console.log("M6", JSON.stringify(parse("a=1&a=2&a=3&b=4", null, null, { maxKeys: 3 })));
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console.log("M7", JSON.stringify(parse("a=1&b=2&c=3", null, null, { maxKeys: Infinity })));
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console.log("M8", JSON.stringify(parse("a=1&b=2&c=3", null, null, { maxKeys: 1000 })));
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console.log("M9", JSON.stringify(parse("a:1;b:2;c:3", ";", ":", { maxKeys: 2 })));
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// A runtime maxKeys expression (the budget lives in the runtime).
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let budget = 1;
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budget += 1;
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console.log("M10", JSON.stringify(parse("a=1&b=2&c=3", null, null, { maxKeys: budget })));
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