46 lines
896 B
JavaScript
46 lines
896 B
JavaScript
var splitRE = /\r?\n/g
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var emptyRE = /^\s*$/
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var needFixRE = /^(\r?\n)*[\t\s]/
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module.exports = function deindent (str) {
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if (!needFixRE.test(str)) {
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return str
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}
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var lines = str.split(splitRE)
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var min = Infinity
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var type, cur, c
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for (var i = 0; i < lines.length; i++) {
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var line = lines[i]
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if (!emptyRE.test(line)) {
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if (!type) {
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c = line.charAt(0)
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if (c === ' ' || c === '\t') {
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type = c
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cur = count(line, type)
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if (cur < min) {
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min = cur
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}
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} else {
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return str
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}
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} else {
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cur = count(line, type)
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if (cur < min) {
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min = cur
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}
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}
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}
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}
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return lines.map(function (line) {
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return line.slice(min)
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}).join('\n')
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}
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function count (line, type) {
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var i = 0
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while (line.charAt(i) === type) {
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i++
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}
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return i
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}
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