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file.go
60 lines (52 loc) · 880 Bytes
/
file.go
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// ------------------
// User: pei
// DateTime: 2020/2/24 8:10
// Description:
// ------------------
package gzu
import (
"bufio"
"errors"
"io"
"os"
"strings"
)
var(
ErrDone = errors.New("done")
)
func FileLines(fn string, handler func(string)) (err error) {
fp, err := os.Open(fn)
if err != nil {
return err
}
buf := bufio.NewReader(fp)
for {
line, err := buf.ReadString('\n')
line = strings.TrimRight(line, "\n\r")
handler(line)
if err != nil {
if err == io.EOF {
return nil
}
return err
}
}
}
func IsTypeOfLower(t string, ts ...string)int64{
for i, tsi := range ts{
if strings.Contains(tsi, strings.ToLower(t)){
return 1 << i
}
}
return 0
}
func Ext(path string) string {
l:=len(path) - 1
for i := l; i >= 0 && path[i] != '/'; i-- {
if path[i] == '.' {
if i == l{return ""}
return path[i+1:]
}
}
return ""
}