basant307/AI_Governance_Project

1export default function ansiRegex({onlyFirst = false} = {}) {2	// Valid string terminator sequences are BEL, ESC\, and 0x9c3	const ST = '(?:\\u0007|\\u001B\\u005C|\\u009C)';4 5	// OSC sequences only: ESC ] ... ST (non-greedy until the first ST)6	const osc = `(?:\\u001B\\][\\s\\S]*?${ST})`;7 8	// CSI and related: ESC/C1, optional intermediates, optional params (supports ; and :) then final byte9	const csi = '[\\u001B\\u009B][[\\]()#;?]*(?:\\d{1,4}(?:[;:]\\d{0,4})*)?[\\dA-PR-TZcf-nq-uy=><~]';10 11	const pattern = `${osc}|${csi}`;12 13	return new RegExp(pattern, onlyFirst ? undefined : 'g');14}15