From: Dan Schmidt <dfan@...>
Date: 2000-12-22T05:10:02+09:00
Subject: [ruby-talk:7908] Re: Comparsion Problem?

Keith Weinberg <keith@groupdigital.com> writes:

| Dan Schmidt wrote:
| > 
| > "Jiangyi Liu" <jyliu@163.net> writes:
| > 
| > | I met a problem when I tried to write some Ruby code to learn
| > | Ruby. The following code just can't work as expected,
| > |
| > | "Hello".each_byte { |c|
| > |     if c == "o"
| > |         print "oh, i got an o!", "\n"
| > |     end
| > | }
| > 
| > In ruby, characters and one-element strings are different types,
| > unlike some other languages.
| 
| each_byte is returning exactly that. . . the number associate with
| each byte.  As far as I can tell, Ruby doesn't have a "Character"
| object.

Right, characters are bytes.

| You typically (conveniently) use one-character strings.

Sometimes it is more convenient to treat characters as one-character
strings; sometimes it is more convenient to treat them as bytes.

| > Try 'if c == ?o' insead.
| 
| I don't think that will work. 'o' is a string just like "o"

I tried it before I posted it, and it did work.  Does it not work for
you?

"o" is a string.
'o' is a string.
?o is a character.

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