38 lines
666 B
JavaScript
38 lines
666 B
JavaScript
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'use strict'
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module.exports = indentation
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var tab = '\t'
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var space = ' '
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var spaceSize = 1
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var tabSize = 4
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// Gets indentation information for a line.
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function indentation(value) {
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var index = 0
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var indent = 0
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var character = value.charAt(index)
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var stops = {}
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var size
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var lastIndent = 0
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while (character === tab || character === space) {
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size = character === tab ? tabSize : spaceSize
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indent += size
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if (size > 1) {
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indent = Math.floor(indent / size) * size
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}
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while (lastIndent < indent) {
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stops[++lastIndent] = index
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}
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character = value.charAt(++index)
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}
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return {indent: indent, stops: stops}
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}
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