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|
package match
import (
"fmt"
"unicode/utf8"
)
type Min struct {
Limit int
}
func NewMin(l int) Min {
return Min{l}
}
func (self Min) Match(s string) bool {
var l int
for range s {
l += 1
if l >= self.Limit {
return true
}
}
return false
}
func (self Min) Index(s string) (int, []int) {
var count int
c := len(s) - self.Limit + 1
if c <= 0 {
return -1, nil
}
segments := acquireSegments(c)
for i, r := range s {
count++
if count >= self.Limit {
segments = append(segments, i+utf8.RuneLen(r))
}
}
if len(segments) == 0 {
return -1, nil
}
return 0, segments
}
func (self Min) Len() int {
return lenNo
}
func (self Min) String() string {
return fmt.Sprintf("<min:%d>", self.Limit)
}
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