63 lines
1.1 KiB
Go
63 lines
1.1 KiB
Go
package main
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import (
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"bufio"
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"flag"
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"fmt"
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"log"
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"os"
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"sort"
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"strings"
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)
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var src string = ""
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var dst string = ""
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var trm bool = false
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func init() {
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flag.StringVar(&src, "i", "", "Input File")
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flag.StringVar(&dst, "o", "", "Output File")
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flag.BoolVar(&trm, "t", false, "Trim all leading and trailing spaces of each line")
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flag.Parse()
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}
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func main() {
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if src == "" || dst == "" {
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flag.Usage()
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os.Exit(1)
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}
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fsi, err := os.Open(src)
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if err != nil {
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fmt.Printf("[ERR] %v\r\n", err)
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os.Exit(1)
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}
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defer fsi.Close()
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var lines []string
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scn := bufio.NewScanner(fsi)
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for scn.Scan() {
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if trm {
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lines = append(lines, strings.TrimSpace(scn.Text()))
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continue
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}
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lines = append(lines, scn.Text())
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}
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sort.Strings(lines)
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fso, err := os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
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if err != nil {
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fmt.Printf("[ERR] %v\r\n", err)
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}
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defer fso.Close()
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for _, line := range lines {
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_, err = fso.WriteString(line + "\r\n")
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if err != nil {
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log.Printf("[ERR] %v\r\n", err)
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continue
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}
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}
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fso.Sync()
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fso.Close()
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}
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