From 562c190b394b0ad76d4d591be74e2f37513c964a Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Sat, 20 May 2017 16:26:54 +0200 Subject: 01 --- repl/repl.go | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 repl/repl.go (limited to 'repl') diff --git a/repl/repl.go b/repl/repl.go new file mode 100644 index 0000000..337be46 --- /dev/null +++ b/repl/repl.go @@ -0,0 +1,30 @@ +package repl + +import ( + "bufio" + "fmt" + "io" + "monkey/lexer" + "monkey/token" +) + +const PROMPT = ">> " + +func Start(in io.Reader, out io.Writer) { + scanner := bufio.NewScanner(in) + + for { + fmt.Printf(PROMPT) + scanned := scanner.Scan() + if !scanned { + return + } + + line := scanner.Text() + l := lexer.New(line) + + for tok := l.NextToken(); tok.Type != token.EOF; tok = l.NextToken() { + fmt.Printf("%+v\n", tok) + } + } +} -- cgit v1.2.3