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21 lines
478 B
Go
21 lines
478 B
Go
package utils
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// A StringSet is a set of strings, represented as a map.
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type StringSet map[string]bool
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// MakeStringSet creates a characteristic function map that tests for presence in an array.
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func MakeStringSet(a []string) StringSet {
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set := map[string]bool{}
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for _, s := range a {
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set[s] = true
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}
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return set
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}
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// AddStrings modifies the set to include the strings in an array.
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func (ss StringSet) AddStrings(a []string) {
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for _, s := range a {
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ss[s] = true
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}
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}
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