From: Mark Hubbart <discord@...>
Date: 2004-03-07T09:13:25+09:00
Subject: Re: Whitespace syntax error?

Hi,
It's not a bug, it's expected behavior. The problem is that when you 
are passing a block, it must begin on the same line as the function you 
are passing it to. It's almost like an argument. So, you you have three 
choices:

- put the opening brace on the function call's line, as in the first 
example;
- use do...end instead of braces (since braces were really intended for 
single-line code anyway (please don't flame me!!!!!))
- petition Matz?

Ruby is not whitespace-neutral. It uses newlines as statement 
separators.

--Mark



On Mar 6, 2004, at 1:29 PM, Gregory Benjamin wrote:

> I'm using: ruby 1.8.1 (2004-01-27) [i386-mswin32]
>
> When I run the following program it works fine:
> ####################################################
> require 'tk'
>
> root = TkRoot.new { title "Example 1" }
>
> TkLabel.new(root){
>   text "Hello, World!"
>   pack { padx 15; pady 15; side 'left' }
> }
>
> Tk.mainloop
> ####################################################
> But when I run this version:
> ####################################################
> require 'tk'
>
> root = TkRoot.new { title "Example 1" }
>
> TkLabel.new(root)
> {
>   text "Hello, World!"
>   pack { padx 15; pady 15; side 'left' }
> }
>
> Tk.mainloop
> ####################################################
> I get the following:
>
> hello.rbw:7: syntax error
>   text "Hello, World!"
>         ^
> hello.rbw:7: warning: unused literal ignored
> hello.rbw:9: syntax error
> ####################################################
> The only difference between the two versions is the
> insertion of a CR/LF between ")" and "{" on line 7.
> I thought Ruby was whitespace neutral. What is wrong
> here?
>
> I care about this because I like to line up my braces
> as shown in the second example.
>
>