16 lines
793 B
JavaScript
16 lines
793 B
JavaScript
export default function ansiRegex({onlyFirst = false} = {}) {
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// Valid string terminator sequences are BEL, ESC\, and 0x9c
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const ST = '(?:\\u0007|\\u001B\\u005C|\\u009C)';
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// OSC sequences only: ESC ] ... ST
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// The payload stops at the first terminator character rather than scanning ahead for one, so an unterminated `ESC ]` cannot rescan the rest of the input. Terminals likewise abort a control string on an unexpected ESC.
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const osc = `(?:\\u001B\\][^\\u0007\\u001B\\u009C]*${ST})`;
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// CSI and related: ESC/C1, optional intermediates, optional params (supports ; and :) then final byte
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const csi = '[\\u001B\\u009B][[\\]()#;?]*(?:\\d{1,4}(?:[;:]\\d{0,4})*)?[\\dA-PR-TZcf-nq-uy=><~]';
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const pattern = `${osc}|${csi}`;
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return new RegExp(pattern, onlyFirst ? undefined : 'g');
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}
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