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'use strict' // eslint-disable-next-line max-len // this code adapted from: https://blogs.msdn.microsoft.com/twistylittlepassagesallalike/2011/04/23/everyone-quotes-command-line-arguments-the-wrong-way/ const cmd = (input, doubleEscape) => { if (!input.length) { return '""' } let result if (!/[ \t\n\v"]/.test(input)) { result = input } else { result = '"' for (let i = 0; i <= input.length; ++i) { let slashCount = 0 while (input[i] === '\\') { ++i ++slashCount } if (i === input.length) { result += '\\'.repeat(slashCount * 2) break } if (input[i] === '"') { result += '\\'.repeat(slashCount * 2 + 1) result += input[i] } else { result += '\\'.repeat(slashCount) result += input[i] } } result += '"' } // and finally, prefix shell meta chars with a ^ result = result.replace(/[ !%^&()<>|"]/g, '^$&') if (doubleEscape) { result = result.replace(/[ !%^&()<>|"]/g, '^$&') } return result } const sh = (input) => { if (!input.length) { return `''` } if (!/[\t\n\r "#$&'()*;<>?\\`|~]/.test(input)) { return input } // replace single quotes with '\'' and wrap the whole result in a fresh set of quotes const result = `'${input.replace(/'/g, `'\\''`)}'` // if the input string already had single quotes around it, clean those up .replace(/^(?:'')+(?!$)/, '') .replace(/\\'''/g, `\\'`) return result } module.exports = { cmd, sh, }