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Diffstat (limited to 'node_modules/prompts/lib/util/wrap.js')
-rw-r--r-- | node_modules/prompts/lib/util/wrap.js | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/node_modules/prompts/lib/util/wrap.js b/node_modules/prompts/lib/util/wrap.js new file mode 100644 index 0000000..43b5399 --- /dev/null +++ b/node_modules/prompts/lib/util/wrap.js @@ -0,0 +1,27 @@ +'use strict'; + +/** + * @param {string} msg The message to wrap + * @param {object} opts + * @param {number|string} [opts.margin] Left margin + * @param {number} opts.width Maximum characters per line including the margin + */ +module.exports = (msg, opts = {}) => { + const tab = Number.isSafeInteger(parseInt(opts.margin)) + ? new Array(parseInt(opts.margin)).fill(' ').join('') + : (opts.margin || ''); + + const width = opts.width; + + return (msg || '').split(/\r?\n/g) + .map(line => line + .split(/\s+/g) + .reduce((arr, w) => { + if (w.length + tab.length >= width || arr[arr.length - 1].length + w.length + 1 < width) + arr[arr.length - 1] += ` ${w}`; + else arr.push(`${tab}${w}`); + return arr; + }, [ tab ]) + .join('\n')) + .join('\n'); +}; |