48 lines
1.0 KiB
TypeScript
48 lines
1.0 KiB
TypeScript
import { mkdirSync, writeFileSync } from "fs";
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import { join } from "path";
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export const RUST_OUT_DIR = join(__dirname, "..", "rust", "common", "gen");
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try {
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mkdirSync(RUST_OUT_DIR);
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} catch (err) {
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if (err.code !== "EEXIST") {
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throw err;
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}
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}
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writeFileSync(
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join(RUST_OUT_DIR, "mod.rs"),
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`
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pub mod attrs;
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pub mod codepoints;
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pub mod entities;
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`
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);
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export const DATA_DIR = join(__dirname, "data");
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export const leftPad = (str: string, n: number) =>
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"0".repeat(n - str.length) + str;
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export const prettyJson = (v: any) => JSON.stringify(v, null, 2);
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export const byteStringLiteral = (bytes: number[]): string =>
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[
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'b"',
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...bytes.map((c) => {
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if (!Number.isSafeInteger(c) || c < 0 || c > 255) {
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throw new Error("Not a byte");
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}
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// 0x20 == ' '.
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// 0x7E == '~'.
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// 0x5C == '\\'.
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// 0x22 == '"'.
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if (c >= 0x20 && c <= 0x7e && c != 0x5c && c != 0x22) {
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return String.fromCharCode(c);
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} else {
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return `\\x${leftPad(c.toString(16), 2)}`;
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}
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}),
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'"',
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].join("");
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