mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-27 00:51:36 +00:00
104 lines
2.3 KiB
Go
104 lines
2.3 KiB
Go
package main
|
|
|
|
import (
|
|
"bytes"
|
|
"flag"
|
|
"fmt"
|
|
"github.com/paulrosania/go-charset/charset"
|
|
_ "github.com/paulrosania/go-charset/charset/iconv"
|
|
"io"
|
|
"os"
|
|
"strings"
|
|
)
|
|
|
|
var listFlag = flag.Bool("l", false, "list available character sets")
|
|
var verboseFlag = flag.Bool("v", false, "list more information")
|
|
var fromCharset = flag.String("f", "utf-8", "translate from this character set")
|
|
var toCharset = flag.String("t", "utf-8", "translate to this character set")
|
|
|
|
func main() {
|
|
flag.Usage = func() {
|
|
fmt.Fprintf(os.Stderr, "usage: tcs [-l] [-v] [charset]\n")
|
|
fmt.Fprintf(os.Stderr, "\ttcs [-f charset] [-t charset] [file]\n")
|
|
}
|
|
flag.Parse()
|
|
if *listFlag {
|
|
cs := ""
|
|
switch flag.NArg() {
|
|
case 1:
|
|
cs = flag.Arg(0)
|
|
case 0:
|
|
default:
|
|
flag.Usage()
|
|
}
|
|
listCharsets(*verboseFlag, cs)
|
|
return
|
|
}
|
|
var f *os.File
|
|
switch flag.NArg() {
|
|
case 0:
|
|
f = os.Stdin
|
|
case 1:
|
|
var err error
|
|
f, err = os.Open(flag.Arg(0))
|
|
if err != nil {
|
|
fatalf("cannot open %q: %v", err)
|
|
}
|
|
}
|
|
r, err := charset.NewReader(*fromCharset, f)
|
|
if err != nil {
|
|
fatalf("cannot translate from %q: %v", *fromCharset, err)
|
|
}
|
|
w, err := charset.NewWriter(*toCharset, os.Stdout)
|
|
if err != nil {
|
|
fatalf("cannot translate to %q: ", err)
|
|
}
|
|
_, err = io.Copy(w, r)
|
|
if err != nil {
|
|
fatalf("%v", err)
|
|
}
|
|
}
|
|
|
|
func listCharsets(verbose bool, csname string) {
|
|
var buf bytes.Buffer
|
|
if !verbose {
|
|
if csname != "" {
|
|
cs := charset.Info(csname)
|
|
if cs == nil {
|
|
fatalf("no such charset %q", csname)
|
|
}
|
|
fmt.Fprintf(&buf, "%s %s\n", cs.Name, strings.Join(cs.Aliases, " "))
|
|
} else {
|
|
fmt.Fprintf(&buf, "%v\n", strings.Join(charset.Names(), " "))
|
|
}
|
|
} else {
|
|
var charsets []*charset.Charset
|
|
if csname != "" {
|
|
cs := charset.Info(csname)
|
|
if cs == nil {
|
|
fatalf("no such charset %q", csname)
|
|
}
|
|
charsets = []*charset.Charset{cs}
|
|
} else {
|
|
for _, name := range charset.Names() {
|
|
if cs := charset.Info(name); cs != nil {
|
|
charsets = append(charsets, cs)
|
|
}
|
|
}
|
|
}
|
|
for _, cs := range charsets {
|
|
fmt.Fprintf(&buf, "%s %s\n", cs.Name, strings.Join(cs.Aliases, " "))
|
|
if cs.Desc != "" {
|
|
fmt.Fprintf(&buf, "\t%s\n", cs.Desc)
|
|
}
|
|
}
|
|
}
|
|
os.Stdout.Write(buf.Bytes())
|
|
}
|
|
|
|
func fatalf(f string, a ...interface{}) {
|
|
s := fmt.Sprintf(f, a...)
|
|
fmt.Fprintf(os.Stderr, "%s\n", s)
|
|
os.Exit(2)
|
|
}
|