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package peco
func (q *Query) Set(s string) {
q.mutex.Lock()
defer q.mutex.Unlock()
q.query = []rune(s)
}
func (q *Query) Reset() {
q.mutex.Lock()
defer q.mutex.Unlock()
q.query = []rune(nil)
}
func (q *Query) RestoreSavedQuery() {
q.mutex.Lock()
defer q.mutex.Unlock()
q.query = q.savedQuery
q.query = []rune(nil)
}
func (q *Query) SaveQuery() {
q.mutex.Lock()
defer q.mutex.Unlock()
q.savedQuery = q.query
q.savedQuery = []rune(nil)
}
func (q *Query) DeleteRange(start, end int) {
q.mutex.Lock()
defer q.mutex.Unlock()
if start == -1 {
return
}
l := len(q.query)
if end > l {
end = l
}
if start > end {
return
}
// everything up to "start" is left in tact
// everything between start <-> end is deleted
// everything up to "start" is left in tact
// everything between start <-> end is deleted
copy(q.query[start:], q.query[end:])
q.query = q.query[:l-(end-start)]
}
func (q *Query) String() string {
q.mutex.Lock()
defer q.mutex.Unlock()
return string(q.query)
}
func (q *Query) Len() int {
q.mutex.Lock()
defer q.mutex.Unlock()
return len(q.query)
}
// Runes returns a channel that gives you the list of runes in the query
func (q *Query) Runes() <-chan rune {
q.mutex.Lock()
defer q.mutex.Unlock()
c := make(chan rune, len(q.query))
go func() {
defer close(c)
q.mutex.Lock()
defer q.mutex.Unlock()
for _, r := range q.query {
c <- r
}
}()
return c
}
func (q *Query) RuneAt(where int) rune {
q.mutex.Lock()
defer q.mutex.Unlock()
return q.query[where]
}
func (q *Query) InsertAt(ch rune, where int) {
q.mutex.Lock()
defer q.mutex.Unlock()
if where == len(q.query) {
q.query = append(q.query, ch)
return
}
sq := q.query
buf := make([]rune, len(sq)+1)
copy(buf, sq[:where])
buf[where] = ch
copy(buf[where+1:], sq[where:])
q.query = buf
}
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