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comp.lang.ruby

need help with $end vs kEND error

Kd Kushelduv

10/10/2006 4:39:00 PM

I have been trying to write a program for my class assignment but
everytime i do i get an error on the last line of the code that says
'unexpected $end, expecting kEND'
this happens on every program i try to run
any ideas?

i am using fedora core 5 if that makes a difference

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8 Answers

Drew Olson

10/10/2006 4:45:00 PM

0

Kd Kushelduv wrote:
> I have been trying to write a program for my class assignment but
> everytime i do i get an error on the last line of the code that says
> 'unexpected $end, expecting kEND'
> this happens on every program i try to run
> any ideas?
>
> i am using fedora core 5 if that makes a difference

Often times this error is a result of missing an end statement somewhere
within your program. For example, you may have forgotten to end a
method, if statement or class. Can you post some code so we can take a
look?

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Andrew Libby

10/10/2006 4:45:00 PM

0

I'm just learning ruby myself, but typically when this
happens, I'm missing an end to a function, or some other
block:


#!/usr/bin/ruby

def joe
print "JOE MAMMA\n"


Produces:


[alibby@localhost ~]$ ./t.rb
/t.rb:6: syntax error, unexpected $end, expecting kEND


Perhaps this is it? If you're willing to post the code (if
it's not too long) we may be able to provide more guidance.

Andy



Kd Kushelduv wrote:
> I have been trying to write a program for my class assignment but
> everytime i do i get an error on the last line of the code that says
> 'unexpected $end, expecting kEND'
> this happens on every program i try to run
> any ideas?
>
> i am using fedora core 5 if that makes a difference
>

Carl Lerche

10/10/2006 4:46:00 PM

0

You have mismatched block openings / endings. Check your def / end
do / end if / end, etc...

On 10/10/06, Kd Kushelduv <kushelduv@mac.com> wrote:
> I have been trying to write a program for my class assignment but
> everytime i do i get an error on the last line of the code that says
> 'unexpected $end, expecting kEND'
> this happens on every program i try to run
> any ideas?
>
> i am using fedora core 5 if that makes a difference
>
> --
> Posted via http://www.ruby-....
>
>

Kd Kushelduv

10/10/2006 6:23:00 PM

0

as far as i can tell nothing is missing
here is the code (its only three methods):

def promptToQuit
print "\nYou did not enter any numbers \n are you sure you wish to
quit? (y/n): "
answer = getc
answer = answer.downcase
while (answer != 'y' && answer != 'n')
print "Are you sure you wish to quit? (y/n): "
answer = getc
answer = answer.downcase
end

return answer
end

def getNumbers (num)
$high = num
$low = num

while (num != 0)
print "Please enter a number (0 to quit): "
num = geti

if ( (num > $high) && (num != 0) ) then
$high = num
else if ( (num < $low) && (num != 0) ) then
$low = num
end
end
end

answer = 'n'

print "\nPlease enter a number (0 to quit): "
num = geti

if (num == 0) then
answer = promptToQuit
end

if (answer == 'y') then
print "\nGoodbye"
else
num = 1
getNumbers(num)
end

puts "Highest Number: " + $high.to_s
puts "Lowest Number: " + $low.to_s
puts "\n"

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Mike Fletcher

10/10/2006 6:35:00 PM

0

Kd Kushelduv wrote:
> if ( (num > $high) && (num != 0) ) then
> $high = num
> else if ( (num < $low) && (num != 0) ) then
> $low = num
> end

This should be

if ( (num > $high) && (num != 0) ) then
$high = num
elsif ( (num < $low) && (num != 0) ) then
$low = num
end

Your else is starting a new block context (not the Ruby term I'm sure;
that's kinda what I'd call it in Perl :) and Ruby thinks what you're
doing is:

if ...

else
if ...
end
end

But you've only got a single end so it's confuzzled.


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Kd Kushelduv

10/10/2006 6:40:00 PM

0

huh that was the problem but my text book had everything as
elseif

i added the space because it wouldn't accept that
but it seems the author still mistyped the entire thing

o well

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Eero Saynatkari

10/10/2006 7:13:00 PM

0

On 2006.10.11 03:23, Kd Kushelduv wrote:
> as far as i can tell nothing is missing
> here is the code (its only three methods):
>
> def promptToQuit
> print "\nYou did not enter any numbers \n are you sure you wish to
> quit? (y/n): "
> answer = getc
> answer = answer.downcase
> while (answer != 'y' && answer != 'n')
> print "Are you sure you wish to quit? (y/n): "
> answer = getc
> answer = answer.downcase
> end
>
> return answer
> end
>
> def getNumbers (num)
> $high = num
> $low = num
>
> while (num != 0)
> print "Please enter a number (0 to quit): "
> num = geti
>
> if ( (num > $high) && (num != 0) ) then
> $high = num
> else if ( (num < $low) && (num != 0) ) then
> $low = num

Right here. You want elsif, otherwise you are missing
the closing end for the nested if. Also, drop the thens,
they are not needed :)

> end
> end
> end
>
> answer = 'n'
>
> print "\nPlease enter a number (0 to quit): "
> num = geti
>
> if (num == 0) then
> answer = promptToQuit
> end
>
> if (answer == 'y') then
> print "\nGoodbye"
> else
> num = 1
> getNumbers(num)
> end
>
> puts "Highest Number: " + $high.to_s
> puts "Lowest Number: " + $low.to_s
> puts "\n"

The error message is a bit ambiguous--$end means EOF, which
Ruby encountered while it was still waiting for a literal
end (the token is called kEND).

Paul Lutus

10/11/2006 12:55:00 AM

0

Kd Kushelduv wrote:

> huh that was the problem but my text book had everything as
> elseif
>
> i added the space because it wouldn't accept that
> but it seems the author still mistyped the entire thing

Umm, just curious, who is the author, what is the book or article?

--
Paul Lutus
http://www.ara...