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-rw-r--r--lib/history.go13
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/history.go b/lib/history.go
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+++ b/lib/history.go
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+package lib
+
+// History represents a list of elements ordered by time.
+type History interface {
+ // Add a new element to the history
+ Add(string)
+ // Get the next element in history
+ Next() string
+ // Get the previous element in history
+ Prev() string
+ // Reset the current location in history
+ Reset()
+}