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package dict
import (
"bufio"
"io"
"strings"
)
func LoadDict[V any](r io.Reader, f func(l string) (string, V)) (*Dict[V], error) {
//var d *Dict[V]
//
//if l, err := linesNotEmpty(r); err != nil {
// return nil, err
//} else {
// d = NewDict[V](l)
//}
d := NewDict[V]()
scanner := bufio.NewScanner(r)
for scanner.Scan() {
line := scanner.Text()
if err := scanner.Err(); err != nil {
return nil, err
}
k, v := f(line)
d.Set(k, v)
}
return d, nil
}
func linesNotEmpty(r io.Reader) (int, error) {
scanner := bufio.NewScanner(r)
count := 0
for scanner.Scan() {
line := scanner.Text()
if strings.TrimSpace(line) != "" {
count++
}
}
if err := scanner.Err(); err != nil {
return 0, err
}
return count, nil
}
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