57 lines
1.9 KiB
Go
57 lines
1.9 KiB
Go
package geo
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import "strings"
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// States is the US states + DC allowlist (code -> name).
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var States = []struct {
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Code string
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Name string
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}{
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{"AL", "Alabama"}, {"AK", "Alaska"}, {"AZ", "Arizona"}, {"AR", "Arkansas"}, {"CA", "California"},
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{"CO", "Colorado"}, {"CT", "Connecticut"}, {"DE", "Delaware"}, {"DC", "District of Columbia"},
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{"FL", "Florida"}, {"GA", "Georgia"}, {"HI", "Hawaii"}, {"ID", "Idaho"}, {"IL", "Illinois"},
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{"IN", "Indiana"}, {"IA", "Iowa"}, {"KS", "Kansas"}, {"KY", "Kentucky"}, {"LA", "Louisiana"},
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{"ME", "Maine"}, {"MD", "Maryland"}, {"MA", "Massachusetts"}, {"MI", "Michigan"}, {"MN", "Minnesota"},
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{"MS", "Mississippi"}, {"MO", "Missouri"}, {"MT", "Montana"}, {"NE", "Nebraska"}, {"NV", "Nevada"},
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{"NH", "New Hampshire"}, {"NJ", "New Jersey"}, {"NM", "New Mexico"}, {"NY", "New York"},
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{"NC", "North Carolina"}, {"ND", "North Dakota"}, {"OH", "Ohio"}, {"OK", "Oklahoma"}, {"OR", "Oregon"},
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{"PA", "Pennsylvania"}, {"RI", "Rhode Island"}, {"SC", "South Carolina"}, {"SD", "South Dakota"},
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{"TN", "Tennessee"}, {"TX", "Texas"}, {"UT", "Utah"}, {"VT", "Vermont"}, {"VA", "Virginia"},
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{"WA", "Washington"}, {"WV", "West Virginia"}, {"WI", "Wisconsin"}, {"WY", "Wyoming"},
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}
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var codes map[string]struct{}
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func init() {
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codes = make(map[string]struct{}, len(States))
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for _, s := range States {
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codes[s.Code] = struct{}{}
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}
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}
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// ValidState reports whether state is empty or a known US code.
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func ValidState(state string) bool {
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state = strings.ToUpper(strings.TrimSpace(state))
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if state == "" {
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return true
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}
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_, ok := codes[state]
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return ok
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}
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// NormalizeState returns "" or an uppercase 2-letter code.
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func NormalizeState(state string) string {
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return strings.ToUpper(strings.TrimSpace(state))
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}
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// StateName returns the full name for a US state code, or "" if unknown.
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func StateName(code string) string {
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code = NormalizeState(code)
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for _, s := range States {
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if s.Code == code {
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return s.Name
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}
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}
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return ""
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}
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