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| 1 | // Minimal replacement for ansi string helpers "wrap-ansi" and "strip-ansi".
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| 2 | // to facilitate ESM and Deno modules.
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| 3 | // TODO: look at porting https://www.npmjs.com/package/wrap-ansi to ESM.
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| 4 | // The npm application
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| 5 | // Copyright (c) npm, Inc. and Contributors
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| 6 | // Licensed on the terms of The Artistic License 2.0
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| 7 | // See: https://github.com/npm/cli/blob/4c65cd952bc8627811735bea76b9b110cc4fc80e/lib/utils/ansi-trim.js
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| 8 | const ansi = new RegExp('\x1b(?:\\[(?:\\d+[ABCDEFGJKSTm]|\\d+;\\d+[Hfm]|' +
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| 9 | '\\d+;\\d+;\\d+m|6n|s|u|\\?25[lh])|\\w)', 'g');
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| 10 | export function stripAnsi(str) {
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| 11 | return str.replace(ansi, '');
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| 12 | }
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| 13 | export function wrap(str, width) {
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| 14 | const [start, end] = str.match(ansi) || ['', ''];
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| 15 | str = stripAnsi(str);
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| 16 | let wrapped = '';
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| 17 | for (let i = 0; i < str.length; i++) {
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| 18 | if (i !== 0 && (i % width) === 0) {
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| 19 | wrapped += '\n';
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| 20 | }
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| 21 | wrapped += str.charAt(i);
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| 22 | }
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| 23 | if (start && end) {
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| 24 | wrapped = `${start}${wrapped}${end}`;
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| 25 | }
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| 26 | return wrapped;
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| 27 | }
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