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main.go
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main.go
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package main
import (
"flag"
"fmt"
"os"
)
var (
promptFlag = flag.String("p", "", "prompt")
suppressFlag = flag.Bool("s", false, "suppress diagnostics")
)
func (ed *Editor) printError(err error) bool {
if err != nil {
ed.Error = err
if ed.printErrors {
fmt.Fprintf(ed.err, "%s\n", ed.Error)
} else {
fmt.Fprintf(ed.err, "%s\n", ErrDefault)
}
return true
}
return false
}
func main() {
var ed *Editor
flag.Parse()
ed = NewEditor(os.Stdin, os.Stdout, os.Stderr)
ed.Prompt = *promptFlag
if *promptFlag != "" {
ed.showPrompt = true
}
ed.Silent = *suppressFlag
var args []string = flag.Args()
if len(args) == 1 {
var err error
ed.Lines, err = ed.ReadFile(args[0], true, true)
if err != nil {
fmt.Fprintf(ed.err, "%s\n", err)
}
}
for {
if err := ed.ReadInput(os.Stdin); err != nil {
break
}
if ed.printError(ed.DoRange()) {
continue
}
if ed.printError(ed.DoCommand()) {
continue
}
}
}