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0x10000;\n const high = 0xD800 + (cpPrime >> 10);\n const low = 0xDC00 + (cpPrime & 0x3FF);\n return [high, low];\n}\n// ───────────────────────────────────────────────────────────────\n// UTF‑16 → UTF‑8 (string → Uint8Array)\n// Proper method: decode UTF‑16 → code points → encode UTF‑8\n// ───────────────────────────────────────────────────────────────\nfunction utf16ToUtf8(str: string): Uint8Array {\n // TextEncoder already implements the official UTF‑8 algorithm.\n return new TextEncoder().encode(str);\n}\n\n\n\n// ───────────────────────────────────────────────────────────────\n// UTF‑32 → UTF‑8 (code point → UTF‑8 bytes)\n// Proper method: manually encode UTF‑8 from scalar value\n// ───────────────────────────────────────────────────────────────\nfunction utf32ToUtf8(cp: number): number[] {\n if (cp < 0 || cp > 0x10FFFF) {\n throw new RangeError(\"Invalid Unicode code point\");\n }\n\n if (cp <= 0x7F) {\n // 1‑byte UTF‑8\n return [cp];\n }\n\n if (cp <= 0x7FF) {\n // 2‑byte UTF‑8\n return [\n 0xC0 | (cp >> 6),\n 0x80 | (cp & 0x3F)\n ];\n }\n\n if (cp <= 0xFFFF) {\n // 3‑byte UTF‑8\n return [\n 0xE0 | (cp >> 12),\n 0x80 | ((cp >> 6) & 0x3F),\n 0x80 | (cp & 0x3F)\n ];\n }\n\n // 4‑byte UTF‑8\n return [\n 0xF0 | (cp >> 18),\n 0x80 | ((cp >> 12) & 0x3F),\n 0x80 | ((cp >> 6) & 0x3F),\n 0x80 | (cp & 0x3F)\n ];\n}\n\n\n\n// ───────────────────────────────────────────────────────────────\n// UTF‑32 array → UTF‑8 bytes\n// (Useful when you have c1,c2,c3,c4 → cp → UTF‑8)\n// ───────────────────────────────────────────────────────────────\nfunction utf32ArrayToUtf8(cps: number[]): Uint8Array {\n const out: number[] = [];\n for (const cp of cps) {\n out.push(...utf32ToUtf8(cp));\n }\n return new Uint8Array(out);\n}\n\n\n\n// ───────────────────────────────────────────────────────────────\n// Helper: reconstruct UTF‑32 from bytes c1,c2,c3,c4\n// ───────────────────────────────────────────────────────────────\nfunction utf32BytesToCodePoint(c1: number, c2: number, c3: number, c4: number): number {\n return ((c1 << 24) >>> 0) | (c2 << 16) | (c3 << 8) | c4;\n}\n\n\n\n// ───────────────────────────────────────────────────────────────\n// Full pipeline example:\n// UTF‑32 bytes → cp → UTF‑8 bytes\n// ───────────────────────────────────────────────────────────────\nfunction utf32BytesToUtf8(c1: number, c2: number, c3: number, c4: number): Uint8Array {\n const cp = utf32BytesToCodePoint(c1, c2, c3, c4);\n return new Uint8Array(utf32ToUtf8(cp));\n}\n\n/**\n * UTF‑32BE (big‑endian) — standard, network‑safe\n */\nfunction utf32StringToBytesBE(str: string): Uint8Array {\n const out: number[] = [];\n\n for (let i = 0; i < str.length; ) {\n const cp = str.codePointAt(i)!;\n\n out.push((cp >>> 24) & 0xFF);\n out.push((cp >>> 16) & 0xFF);\n out.push((cp >>> 8) & 0xFF);\n out.push(cp & 0xFF);\n\n i += cp > 0xFFFF ? 2 : 1;\n }\n\n return new Uint8Array(out);\n}\n\n\n/**\n * UTF‑32LE (little‑endian) — Windows‑native, CPU‑native\n */\nfunction utf32StringToBytesLE(str: string): Uint8Array {\n const out: number[] = [];\n\n for (let i = 0; i < str.length; ) {\n const cp = str.codePointAt(i)!;\n\n out.push(cp & 0xFF);\n out.push((cp >>> 8) & 0xFF);\n out.push((cp >>> 16) & 0xFF);\n out.push((cp >>> 24) & 0xFF);\n\n i += cp > 0xFFFF ? 2 : 1;\n }\n\n return new Uint8Array(out);\n}\n\n\nfunction splitUnicodeToBytes(\n str: string,\n): Array<[string, number, number, number, number]> {\n const out: Array<[string, number, number, number, number]> = [];\n\n for (let i = 0; i < str.length;) {\n const cp = str.codePointAt(i)!;\n\n const v = cp - str.codePointAt(0);\n const cv = String.fromCodePoint(v+32);\n\n const char = String.fromCodePoint(cp);\n\n const u2 = utf32ToUtf16(cp);\n\n const s1 = (u2 & 0xFFFF0000)>>16;\n const s2 = (u2 & 0x0000FFFF);\n \n const c1 = (cp>>> 24) & 0xFF;\n const c2 = (cp >>> 16) & 0xFF;\n const c3 = (cp >>> 8) & 0xFF;\n const c4 = cp & 0xFF;\n\n //out.push([char, {u:u2,c:String.fromCharCode(...u2),cv}, c1, c2, c3, c4]);\nout.push({s1, s2});\n i += cp > 0xFFFF ? 2 : 1; // advance by surrogate length\n }\n\n return out;\n}\n\n// UTF‑32 Big‑Endian: c1 is MSB, c4 is LSB\nfunction utf32BytesToCodePointBE(\n c1: number, c2: number, c3: number, c4: number\n): number {\n return (c1 << 24) | (c2 << 16) | (c3 << 8) | c4;\n}\n\nfunction utf32BytesToUtf8BE(\n c1: number, c2: number, c3: number, c4: number\n): Uint8Array {\n const cp = utf32BytesToCodePointBE(c1, c2, c3, c4);\n return new Uint8Array(utf32ToUtf8(cp));\n}\n\n// UTF‑32 Little‑Endian: c1 is LSB, c4 is MSB\nfunction utf32BytesToCodePointLE(\n c1: number, c2: number, c3: number, c4: number\n): number {\n return (c4 << 24) | (c3 << 16) | (c2 << 8) | c1;\n}\n\nfunction utf32BytesToUtf8LE(\n c1: number, c2: number, c3: number, c4: number\n): Uint8Array {\n const cp = utf32BytesToCodePointLE(c1, c2, c3, c4);\n return new Uint8Array(utf32ToUtf8(cp));\n}\n\n\nfunction utf32BytesToCodePointBOM(\n c1: number, c2: number, c3: number, c4: number\n): number {\n // UTF‑32BE BOM: 00 00 FE FF\n if (c1 === 0x00 && c2 === 0x00 && c3 === 0xFE && c4 === 0xFF) {\n throw new Error(\"BOM only, no code point\");\n }\n\n // UTF‑32LE BOM: FF FE 00 00\n if (c1 === 0xFF && c2 === 0xFE && c3 === 0x00 && c4 === 0x00) {\n throw new Error(\"BOM only, no code point\");\n }\n\n // Detect endianness from BOM\n if (c1 === 0x00 && c2 === 0x00 && c3 === 0xFE && c4 === 0xFF) {\n // BE BOM — next code point must be BE\n return utf32BytesToCodePointBE(c1, c2, c3, c4);\n }\n\n if (c1 === 0xFF && c2 === 0xFE && c3 === 0x00 && c4 === 0x00) {\n // LE BOM — next code point must be LE\n return utf32BytesToCodePointLE(c1, c2, c3, c4);\n }\n\n // No BOM → assume BE (Unicode standard default)\n return utf32BytesToCodePointBE(c1, c2, c3, c4);\n}\n\nfunction utf32BytesToUtf8BOM(\n c1: number, c2: number, c3: number, c4: number\n): Uint8Array {\n const cp = utf32BytesToCodePointBOM(c1, c2, c3, c4);\n return new Uint8Array(utf32ToUtf8(cp));\n}\n\n\nexport \n{\n utf32ToUtf16, utf16ToUtf8, utf32ToUtf8, utf32ArrayToUtf8,\n utf32BytesToCodePoint, utf32BytesToUtf8, splitUnicodeToBytes,\n utf32StringToBytesLE, utf32StringToBytesBE,\n utf32BytesToUtf8BE, utf32BytesToCodePointBE,\n utf32BytesToUtf8LE, utf32BytesToCodePointLE,\n utf32BytesToCodePointBOM, utf32BytesToUtf8BOM\n};\nconsole.log(JSON.stringify(utf32StringToBytesLE(msg)));\nconsole.log(JSON.stringify(utf32StringToBytesBE(msg)));\n\nexport default async function handler(){\n const ret = [];\n const rawText = \"super secret message\";\n ret.push(rawText);\n const encoded = encodeBase240VS(rawText);\n ret.push(`Encoded: ${JSON.stringify(encoded)}`);\n \n const decoded = decodeBase240VS(encoded);\n ret.push(`Decoded: ${JSON.stringify(encoded)}`);\n \n console.log(encodeBase240VS(ret.join('\\n')));\n return new Response(ret.join('
'), {status:200, headers:{\"Content-Type\":\"text/html\"}});\n}","deleted","label",[115],"6022b82e-5535-11f1-9188-ee650bb23af1","base240.ts","dd616da0-54ca-11f1-b437-ee650bb23af1",28,["D",1779382315957],2,"script","// Base‑240 invisible encoder/decoder using Unicode Variation Selectors Supplement (U+E0100–U+E01EF)\n// Now extended with: UTF‑8 compression (DEFLATE) + base‑240 packing + invisible VS output.\n// This gives you ~10–20 original characters per invisible code point depending on entropy.\n\n// ─────────────────────────────────────────────────────────────────────────────\n// 0. Minimal DEFLATE implementation (pako-like) using built‑in CompressionStream\n// (Browser / Deno / Bun). Node 18+ supports it behind Web Streams.\n// If CompressionStream is unavailable, replace with your own DEFLATE.\n// ─────────────────────────────────────────────────────────────────────────────\n\nasync function deflate(bytes: Uint8Array): Promise {\n const cs = new CompressionStream(\"deflate\");\n const writer = cs.writable.getWriter();\n writer.write(bytes as any);\n writer.close();\n const out = await new Response(cs.readable).arrayBuffer();\n return new Uint8Array(out);\n}\n\nasync function inflate(bytes: Uint8Array): Promise {\n const ds = new DecompressionStream(\"deflate\");\n const writer = ds.writable.getWriter();\n writer.write(bytes as any);\n writer.close();\n const out = await new Response(ds.readable).arrayBuffer();\n return new Uint8Array(out);\n}\n\n// ─────────────────────────────────────────────────────────────────────────────\n// 1. Base‑240 alphabet: Variation Selectors Supplement\n// Range: U+E0100–U+E01EF (240 invisible code points)\n// ─────────────────────────────────────────────────────────────────────────────\n\nconst VS_BASE = 0xE0100; // First VS Supplement code point\nconst VS_COUNT = 240; // Total available\n\n// ─────────────────────────────────────────────────────────────────────────────\n// 2. Public API\n// ─────────────────────────────────────────────────────────────────────────────\n\n/** Encode text → DEFLATE → base‑240 → invisible VS string */\nasync function encodeBase240VS(input: string): Promise {\n const utf8 = new TextEncoder().encode(input);\n const compressed = await deflate(utf8);\n const digits = bytesToBase240Digits(compressed);\n return digitsToVSString(digits);\n}\n\n/** Decode invisible VS string → base‑240 → DEFLATE → original text */\nasync function decodeBase240VS(vs: string): Promise {\n const digits = vsStringToDigits(vs);\n const compressed = base240DigitsToBytes(digits);\n const utf8 = await inflate(compressed);\n return new TextDecoder().decode(utf8);\n}\n\n// ─────────────────────────────────────────────────────────────────────────────\n// 3. Base‑256 → base‑240 conversion\n// ─────────────────────────────────────────────────────────────────────────────\n\nfunction bytesToBase240Digits(bytes: Uint8Array): number[] {\n const digits: number[] = [0]; // big‑endian base‑240 integer\n\n for (const b of bytes) {\n let carry = b;\n for (let i = digits.length - 1; i >= 0; i--) {\n const val = digits[i] * 256 + carry;\n digits[i] = val % VS_COUNT;\n carry = Math.floor(val / VS_COUNT);\n }\n while (carry > 0) {\n digits.unshift(carry % VS_COUNT);\n carry = Math.floor(carry / VS_COUNT);\n }\n }\n\n while (digits.length > 1 && digits[0] === 0) digits.shift();\n return digits;\n}\n\n// ─────────────────────────────────────────────────────────────────────────────\n// 4. Base‑240 → VS string\n// ─────────────────────────────────────────────────────────────────────────────\n\nfunction digitsToVSString(digits: number[]): string {\n return String.fromCodePoint(\n ...digits.map((d) => VS_BASE + d),\n );\n}\n\n// ─────────────────────────────────────────────────────────────────────────────\n// 5. VS string → base‑240 digits\n// ─────────────────────────────────────────────────────────────────────────────\n\nfunction vsStringToDigits(s: string): number[] {\n const cps = codePointsOf(s);\n return cps.map((cp) => {\n const d = cp - VS_BASE;\n if (d < 0 || d >= VS_COUNT) {\n throw new Error(\"Non‑VS‑supplement code point encountered\");\n }\n return d;\n });\n}\n\n// ─────────────────────────────────────────────────────────────────────────────\n// 6. Base‑240 → base‑256 (bytes)\n// ─────────────────────────────────────────────────────────────────────────────\n\nfunction base240DigitsToBytes(digits: number[]): Uint8Array {\n let vals = digits.slice(); // big‑endian base‑240\n const out: number[] = [];\n\n while (!(vals.length === 1 && vals[0] === 0)) {\n let carry = 0;\n const next: number[] = [];\n for (let i = 0; i < vals.length; i++) {\n const cur = carry * VS_COUNT + vals[i];\n const q = Math.floor(cur / 256);\n const r = cur % 256;\n if (next.length > 0 || q !== 0) next.push(q);\n carry = r;\n }\n out.unshift(carry);\n vals = next.length ? next : [0];\n }\n\n return new Uint8Array(out);\n}\n\n// ─────────────────────────────────────────────────────────────────────────────\n// 7. Utility: iterate code points\n// ─────────────────────────────────────────────────────────────────────────────\n\nfunction codePointsOf(s: string): number[] {\n const cps: number[] = [];\n for (let i = 0; i < s.length;) {\n const cp = s.codePointAt(i)!;\n cps.push(cp);\n i += cp > 0xffff ? 2 : 1;\n }\n return cps;\n}\n\n// ─────────────────────────────────────────────────────────────────────────────\n// Example usage:\n//\n// const encoded = await encodeInvisible240(\"Hello Michael, BTC 68000 🚀\");\n// console.log(\"Invisible:\", encoded);\n// const decoded = await decodeInvisible240(encoded);\n// console.log(\"Decoded:\", decoded);\n// console.log(\"Match:\", decoded === \"Hello Michael, BTC 68000 🚀\");\n// ─────────────────────────────────────────────────────────────────────────────\n\n// Export all public API functions from the invisible base‑240 encoder module.\n\nexport {\n base240DigitsToBytes,\n bytesToBase240Digits,\n codePointsOf,\n decodeBase240VS,\n deflate,\n digitsToVSString,\n encodeBase240VS,\n inflate,\n vsStringToDigits,\n};",[132],"pulls",1,"forks","envVars",{"_147":52,"_149":52},"connections",{"_147":52,"_148":52},"count","unfilledCount","emptyCount",{"_20":131,"_13":132,"_116":133,"_118":-5,"_119":21,"_120":134,"_121":107,"_22":156,"_29":136,"_124":137,"_126":138,"_128":38,"_129":-5,"_153":157,"_88":158},{"_20":114,"_13":115,"_116":117,"_118":-5,"_119":21,"_120":30,"_121":107,"_22":152,"_29":123,"_124":125,"_126":127,"_128":38,"_129":-5,"_153":154,"_88":155},["D",1779384113565],"children",[],[115],["D",1779382315957],[],[132],["D",1779336569917],{"_11":12,"_86":82},{"_11":12,"_80":-5,"_81":82,"_45":46,"_83":84,"_85":38},{"_29":30,"_13":26,"_20":21,"_27":28,"_31":-5,"_32":-5,"_75":-5,"_76":-5,"_77":-5,"_78":14,"_79":12},"ctx",{"_68":-5,"_109":196,"_197":198,"_199":200,"_201":38,"_202":38,"_203":38,"_204":107,"_205":-5,"_206":-7,"_207":-7,"_208":52,"_209":38,"_210":38,"_211":-5,"_212":38,"_213":38,"_214":38,"_215":-5},"ENV",{"_167":168,"_169":170,"_171":26,"_172":173,"_174":175,"_176":177,"_178":179,"_180":181,"_182":183,"_184":185,"_186":187,"_188":189,"_190":191,"_192":193,"_194":195},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

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