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