glob/match/max.go

49 lines
627 B
Go

package match
import (
"fmt"
"unicode/utf8"
)
type Max struct {
n int
}
func NewMax(n int) Max {
return Max{n}
}
func (m Max) Match(s string) bool {
var n int
for range s {
n += 1
if n > m.n {
return false
}
}
return true
}
func (m Max) Index(s string) (int, []int) {
segments := acquireSegments(m.n + 1)
segments = append(segments, 0)
var count int
for i, r := range s {
count++
if count > m.n {
break
}
segments = append(segments, i+utf8.RuneLen(r))
}
return 0, segments
}
func (m Max) MinLen() int {
return 0
}
func (m Max) String() string {
return fmt.Sprintf("<max:%d>", m.n)
}