Removed fmt.Printf statements

These were generally on error-paths, but they shouldn't be necessary.

Author: skx

evaluator/evaluator.go

@@ -680,7 +680,6 @@ func evalAssignStatement(ctx context.Context, a *ast.AssignStatement, env *objec
 
 		res := evalInfixExpression("+=", current, evaluated, env)
 		if isError(res) {
-			fmt.Printf("Error handling += %s\n", res.Inspect())
 			return res
 		}
 
@@ -697,7 +696,6 @@ func evalAssignStatement(ctx context.Context, a *ast.AssignStatement, env *objec
 
 		res := evalInfixExpression("-=", current, evaluated, env)
 		if isError(res) {
-			fmt.Printf("Error handling -= %s\n", res.Inspect())
 			return res
 		}
 
@@ -713,7 +711,6 @@ func evalAssignStatement(ctx context.Context, a *ast.AssignStatement, env *objec
 
 		res := evalInfixExpression("*=", current, evaluated, env)
 		if isError(res) {
-			fmt.Printf("Error handling *= %s\n", res.Inspect())
 			return res
 		}
 
@@ -730,7 +727,6 @@ func evalAssignStatement(ctx context.Context, a *ast.AssignStatement, env *objec
 
 		res := evalInfixExpression("/=", current, evaluated, env)
 		if isError(res) {
-			fmt.Printf("Error handling /= %s\n", res.Inspect())
 			return res
 		}
 

lexer/lexer.go

@@ -181,7 +181,6 @@ func (l *Lexer) NextToken() token.Token {
 					tok.Type = token.REGEXP
 					tok.Literal = str
 				} else {
-					fmt.Printf("%s\n", err.Error())
 					tok.Type = token.REGEXP
 					tok.Literal = str
 				}

parser/parser.go

@@ -462,7 +462,6 @@ func (p *Parser) parseSwitchStatement() ast.Expression {
 
 			msg := fmt.Sprintf("expected token to be '{', got %s instead", p.curToken.Type)
 			p.errors = append(p.errors, msg)
-			fmt.Printf("error\n")
 			return nil
 		}
 
@@ -472,7 +471,6 @@ func (p *Parser) parseSwitchStatement() ast.Expression {
 		if !p.curTokenIs(token.RBRACE) {
 			msg := fmt.Sprintf("Syntax Error: expected token to be '}', got %s instead", p.curToken.Type)
 			p.errors = append(p.errors, msg)
-			fmt.Printf("error\n")
 			return nil
 
 		}