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|
package main
import (
"fmt"
"io"
"log"
"math/rand"
"strconv"
"strings"
"github.com/ergochat/readline"
)
var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
func randSeq(n int) string {
b := make([]rune, n)
for i := range b {
b[i] = letters[rand.Intn(len(letters))]
}
return string(b)
}
// A completor that will give a lot of completions for showcasing the paging functionality
type Completor struct{}
func (c *Completor) Do(line []rune, pos int) ([][]rune, int) {
completion := make([][]rune, 0, 10000)
for i := 0; i < 1000; i += 1 {
var s string
if i%2 == 0 {
s = fmt.Sprintf("%s%05d", randSeq(1), i)
} else if i%3 == 0 {
s = fmt.Sprintf("%s%010d", randSeq(1), i)
} else {
s = fmt.Sprintf("%s%07d", randSeq(1), i)
}
completion = append(completion, []rune(s))
}
return completion, pos
}
func main() {
c := Completor{}
l, err := readline.NewEx(&readline.Config{
Prompt: "\033[31m»\033[0m ",
AutoComplete: &c,
InterruptPrompt: "^C",
EOFPrompt: "exit",
})
if err != nil {
panic(err)
}
defer l.Close()
for {
line, err := l.Readline()
if err == readline.ErrInterrupt {
if len(line) == 0 {
break
} else {
continue
}
} else if err == io.EOF {
break
}
line = strings.TrimSpace(line)
switch {
default:
log.Println("you said:", strconv.Quote(line))
}
}
}
|
