Sha256: f393f2ab58b9c55ae0f141f3adc6f31fdffc20fbf8af497aa36a8918e9ae5eb2
Contents?: true
Size: 1.36 KB
Versions: 4
Compression:
Stored size: 1.36 KB
Contents
Trix.extend
normalizeSpaces: (string) ->
string
.replace(///#{Trix.ZERO_WIDTH_SPACE}///g, "")
.replace(///#{Trix.NON_BREAKING_SPACE}///g, " ")
summarizeStringChange: (oldString, newString) ->
oldString = Trix.UTF16String.box(oldString)
newString = Trix.UTF16String.box(newString)
if newString.length < oldString.length
[removed, added] = utf16StringDifferences(oldString, newString)
else
[added, removed] = utf16StringDifferences(newString, oldString)
{added, removed}
utf16StringDifferences = (a, b) ->
return ["", ""] if a.isEqualTo(b)
diffA = utf16StringDifference(a, b)
{length} = diffA.utf16String
diffB = if length
{offset} = diffA
codepoints = a.codepoints.slice(0, offset).concat(a.codepoints.slice(offset + length))
utf16StringDifference(b, Trix.UTF16String.fromCodepoints(codepoints))
else
utf16StringDifference(b, a)
[diffA.utf16String.toString(), diffB.utf16String.toString()]
utf16StringDifference = (a, b) ->
leftIndex = 0
rightIndexA = a.length
rightIndexB = b.length
while leftIndex < rightIndexA and a.charAt(leftIndex).isEqualTo(b.charAt(leftIndex))
leftIndex++
while rightIndexA > leftIndex + 1 and a.charAt(rightIndexA - 1).isEqualTo(b.charAt(rightIndexB - 1))
rightIndexA--
rightIndexB--
utf16String: a.slice(leftIndex, rightIndexA)
offset: leftIndex
Version data entries
4 entries across 4 versions & 1 rubygems