Language mavens: Is there a programming with "if then else ENDIF" syntax?

[Steve Ferg]

This is a question for the language mavens that I know hang out here.
It is not Python related, except that recent comparisons of Python to
Google's new Go language brought it to mind.

NOTE that this is *not* a suggestion to change Python.  I like Python
just the way it is.  I'm just curious about language design.

For a long time I've wondered why languages still use blocks
(delimited by do/end, begin/end, { } , etc.) in ifThenElse statements.

I've often thought that a language with this kind of block-free syntax
would be nice and intuitive:

    if <condition> then
        do stuff
    elif <condition> then
        do stuff
    else
        do stuff
    endif

Note that you do not need block delimiters.

Obviously, you could make a more Pythonesque syntax by using a colon
rather then "then" for the condition terminator.  You could make it
more PL/I-like by using "do", etc.

You can write shell scripts using if ... fi, but other than that I
don't recall a language with this kind of syntax.

Does anybody know a language with this kind of syntax for
ifThenElseEndif?

Is there any particular reason why this might be a *bad* language-
design idea?