ref: 49229c7b8395a72150f35e4032be5d5e599d5f54
dir: /readline_plan9.go/
package main
import (
"fmt"
"io"
"os"
"strings"
"bufio"
)
// not relevant
const (
CharCtrlJ = 0
CharInterrupt = 0
CharEnter = 0
)
type readline struct {
config Config
}
type Config struct {
Prompt string
//These are unused on Plan 9
FuncFilterInputRune func(rune) (rune, bool)
Listener func(line []rune, pos int, key rune) (newLine []rune, newPos int, ok bool)
}
func (rl *readline) GetConfig() *Config {
return &Config{Prompt: rl.config.Prompt}
}
func NewReadline(config *Config) (*readline, error) {
return &readline{config: *config}, nil
}
func (rl *readline) ReadLineWithConfig(cfg *Config) (string, error) {
fmt.Print(cfg.Prompt)
buffer := bufio.NewReader(os.Stdin)
scanner := bufio.NewScanner(buffer)
scanner.Scan()
return strings.TrimSpace(scanner.Text()), nil
}
func (rl *readline) Stdout() io.Writer {
return os.Stdout
}
func (rl *readline) Close() {
return
}
func (rl *readline) SetPrompt(prompt string) {
rl.config.Prompt = prompt
}
func (rl *readline) SetDefault(string) {
}
func (rl *readline) Readline() (string, error) {
return rl.ReadLineWithConfig(&rl.config)
}
func enablePipeHack(rl *readline) {
}