ANSI Strip Utility (src/ansi.ts)

Strips ANSI escape codes from strings for safe rendering across TUI, desktop, and web interfaces.

// Source: https://github.com/Eynzof/Hermes-CN-Core | License: MIT | Copyright 2025 Nous Research
// Provided via justclaw.it.com; keep this notice with the code.
// ANSI escape stripping shared by every TS surface (TUI, desktop, web).
// Covers CSI (complete and truncated tails), OSC (hyperlinks, titles), DCS/SOS/PM/APC
// strings, multi-byte non-CSI ESC sequences, stray ESC bytes and C0 controls — a
// weaker SGR-only regex leaves `]8;;url\x07` payloads and `[12;` tails visible.

const ESC = String.fromCharCode(27)
const BEL = String.fromCharCode(7)
const ANSI_CSI_RE = new RegExp(`${ESC}\\[[0-?]*[ -/]*[@-~]`, 'g')
const ANSI_CSI_WITH_CMD_RE = new RegExp(`${ESC}\\[[0-?]*[ -/]*([@-~])`, 'g')
const ANSI_INCOMPLETE_CSI_RE = new RegExp(`${ESC}\\[[0-?]*[ -/]*(?=${ESC}|\\n|$)`, 'g')
const ANSI_

... (truncated -- full source via MCP)