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Offset and range mapper for string
npm i text-mappingconst text = new Text('ab')
text.prependLeft(1, 'foo')
text.toString() // -> afoob
// find 'a' in generated string
text.generatedOffsetFor(0) // -> 0
// find 'f' in original string (cannot find 'f')
text.originalOffsetFor(1) // -> -1MIT © fengzilong