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set.go
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set.go
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package globber
import (
"strings"
"unicode"
)
// Separator is the delimiter used when converting sets to and from strings.
const Separator = ','
// Set is a slice of globs.
type Set []Glob
// NewSet returns a set of globs for the given pattern. Commas and
// whitespace will divide individual globs.
func NewSet(values ...string) (set Set) {
for _, value := range values {
if value != "" {
set = append(set, New(value))
}
}
return
}
// Split returns a set of globs for the given string. The string is split on
// commas and whitespace.
func Split(values string) (set Set) {
sep := func(c rune) bool {
return c == Separator || unicode.IsSpace(c)
}
for _, value := range strings.FieldsFunc(values, sep) {
set = append(set, New(value))
}
return
}
// Match returns true if any member of the set matches the given value.
func (s Set) Match(value string) bool {
for i := range s {
if s[i].Match(value) {
return true
}
}
return false
}
// MatchInsensitive returns true if any member of the set case-insensitively
// matches the given value.
func (s Set) MatchInsensitive(value string) bool {
for i := range s {
if s[i].MatchInsensitive(value) {
return true
}
}
return false
}
// Set applies the given value or pattern to s. It facilitates use in the flag
// package.
//
// Set assumes that values are delimited by whitespace or commas.
func (s *Set) Set(values string) error {
*s = Split(values)
return nil
}
// String returns a string representation of the set. Individual values are
// joined together by commas.
func (s Set) String() string {
literals := make([]string, len(s))
for i := range s {
literals[i] = s[i].String()
}
return strings.Join(literals, string(Separator))
}