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{Range} = require 'atom'
module.exports =
# Public: Determines if a string should be considered linewise or character
#
# text - The string to consider
#
# Returns 'linewise' if the string ends with a line return and 'character'
# otherwise.
copyType: (text) ->
if text.lastIndexOf("\n") is text.length - 1
'linewise'
else if text.lastIndexOf("\r") is text.length - 1
'linewise'
else
'character'
# Public: return a union of two ranges, or simply the newRange if the oldRange is empty.
#
# Returns a Range
mergeRanges: (oldRange, newRange) ->
oldRange = Range.fromObject oldRange
newRange = Range.fromObject newRange
if oldRange.isEmpty()
newRange
else
oldRange.union(newRange)
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