Rename new -> New and next_token -> NextToken, because of go's weird requirement that first letter

of public methods in a package that would be used in another package must be capitalized.

git-svn-id: https://svn.tlawal.org/svn/monkey@4 f6afcba9-9ef1-4bdd-9b72-7484f5705bac

lexer/lexer.go

@@ -9,7 +9,7 @@ type Lexer struct {
 	current_char  byte
 }
 
-func new(input string) *Lexer {
+func New(input string) *Lexer {
 	l := &Lexer{input: input}
 	l.read_char()
 	return l
@@ -67,7 +67,7 @@ func is_digit(ch byte) bool {
 	return '0' <= ch && ch <= '9'
 }
 
-func (lexer *Lexer) next_token() token.Token {
+func (lexer *Lexer) NextToken() token.Token {
 	var tok token.Token
 	lexer.skip_whitespace()
 

lexer/lexer_test.go

@@ -114,9 +114,9 @@ func TestNextToken(t *testing.T) {
 		{token.EOF, ""},
 	}
 
-	l := new(input)
+	l := New(input)
 	for i, tt := range tests {
-		tok := l.next_token()
+		tok := l.NextToken()
 		if tok.Type != tt.expectedType {
 			t.Fatalf("test[%d] - tokentype wrong. expected=%q, got=%q", i, tt.expectedType, tok.Type)
 		}

repl/repl.go

@@ -22,9 +22,9 @@ func Start(in io.Reader, out io.Writer){
 		}
 
 		line := scanner.Text()
-		l := lexer.new(line)
+		l := lexer.New(line)
 
-		for tok := l.next_token(); tok.Type != token.EOF; tok = l.next_token(){
+		for tok := l.NextToken(); tok.Type != token.EOF; tok = l.NextToken() {
 			fmt.Fprintf(out, "%+v\n", tok)
 		}
 	}