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modify AppendUnique so it matches only the first two items.

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fiatjaf
2023-02-05 17:04:15 -03:00
parent a3e3b25dd9
commit 4aee139f6c
1 changed files with 8 additions and 2 deletions
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10
tags.go
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@@ -99,9 +99,15 @@ func (tags Tags) FilterOut(tagPrefix []string) Tags {
return filtered return filtered
} }
// AppendUnique appends a tag if it doesn't exist yet, otherwise does nothing // AppendUnique appends a tag if it doesn't exist yet, otherwise does nothing.
// the uniqueness comparison is done based only on the first 2 elements of the tag.
func (tags Tags) AppendUnique(tag Tag) Tags { func (tags Tags) AppendUnique(tag Tag) Tags {
if tags.GetFirst(tag) == nil { n := len(tag)
if n > 2 {
n = 2
}
if tags.GetFirst(tag[:n]) == nil {
return append(tags, tag) return append(tags, tag)
} else { } else {
return tags return tags