feat: repel v0 to print tokens

REPL/repel.go

@@ -0,0 +1,45 @@
+package repl
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+
+	"github.com/houcine7/JIPL/lexer"
+	"github.com/houcine7/JIPL/token"
+)
+
+// REPL :Read --> Evaluate --> Print --> loop
+//  the repl used to interact with users to read from console
+// and send to interpreter to evaluate then prints back the result
+
+/*
+* Function as the start method of the repl
+* To interact with the user via terminal
+ */
+
+ const PROMPT="$>>"
+
+
+func Start(in io.Reader, out io.Writer){
+	scanner := bufio.NewScanner(in);
+	fmt.Println("                    **********                 ")
+	fmt.Println("------------- Welcome to JIPL REPLE ------------")
+	fmt.Println("                    **********                 ")
+	for {
+		fmt.Print(PROMPT)
+		scanned := scanner.Scan()
+		if !scanned {
+			return
+		}
+		line :=scanner.Text()
+
+		replLexer :=lexer.InitLexer(line);
+
+		for tok:=replLexer.NextToken(); tok.Type!=token.FILE_ENDED;{
+			fmt.Printf("%+v\n",tok)
+			tok=replLexer.NextToken()
+		}
+	}
+
+}

main.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/user"
+
+	repl "github.com/houcine7/JIPL/REPL"
+)
+
+func main() {
+	currUser, err := user.Current();
+
+	if err !=nil{
+		panic(err)
+	}
+
+	fmt.Printf("Hello %s!, welcome to JIPL happy coding :)",currUser.Username)
+	fmt.Printf("Start typing JIPL code ...\n")
+	repl.Start(os.Stdin,os.Stdout)
+}