69 lines
1.1 KiB
Go
69 lines
1.1 KiB
Go
package main
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import (
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"fmt"
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"io"
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"regexp"
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"strings"
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)
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func cleanInput(input string) []string {
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normalized := strings.ToLower(input)
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trimmed := strings.TrimSpace(normalized)
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re := regexp.MustCompile(`[\s]+`)
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words := re.Split(trimmed, -1)
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return words
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}
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type inputScanner interface {
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Scan() bool
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Err() error
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Text() string
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}
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func runREPL(s inputScanner, w io.Writer, sanitizer func(string) []string) {
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context := NewContext()
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for {
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fmt.Fprint(w, "Pokedex > ")
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s.Scan()
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err := s.Err()
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if err != nil {
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fmt.Fprintf(w, "Pokedex > Sorry I didn't get that.\n")
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continue
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}
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input := s.Text()
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if input == "" {
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break
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}
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cleanedInput := sanitizer(input)
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if len(cleanedInput) < 1 {
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fmt.Fprintf(w, "Pokedex > Sorry I couldn't understand that.\n")
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continue
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}
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requestedCommand := cleanedInput[0]
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command, exists := context.commands[requestedCommand]
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if !exists {
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fmt.Fprintln(w, "Unknown command")
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continue
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}
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context.args = cleanedInput[1:]
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err = command.callback(context)
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if err != nil {
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fmt.Fprintf(w, "Pokedex > Error occurred executing command: %s", err)
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}
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}
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}
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