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Add a private function to splat out context.

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This commit is contained in:
Rob Rix 2015-11-02 16:14:03 -05:00
parent b858c164d8
commit 7ac4c9ee03
1 changed files with 13 additions and 0 deletions
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13
prototype/doubt-difftool/Unified.swift
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@ -7,6 +7,19 @@ private func range(patch: Patch<Term>) -> Range<Int>? {
return patch.state.after?.extract.range
}
private func unified(range: Range<Int>, children: [(String, Range<Int>?)], source: String) -> String {
var previous = range.startIndex
var out: String = ""
for (string, range) in children {
if let range = range {
out += String(source.utf16[previous..<range.startIndex])
previous = range.endIndex
}
out += string
}
return out + String(source.utf16[previous..<range.endIndex])
}
func unified(diff: Diff, before: String, after: String) -> String {
return diff.map { (unified($0, source: after), range($0)) }.cata { info, syntax in
switch syntax {