OpenEuphoria

1. Euphoria 4.0 debugger

• Posted by marky1124 Mar 23, 2009
• 817 views

Hi,

I'm sorry if this has already been discussed and I missed it, but can anyone please tell me whether in v4.0 the euphoria debugger has a easier way to view the contents of a string.

In other words instead of seeing this when you type ?URL

URL={104h,116t,116t,112p,58:,47/,47/,111o,112p,101e,110n,101e,117u,112p,104h, 111o,114r,105i,97a,46.,111o,114r,103g}

Perhaps a method by which it would be possible to see this...

URL = "http://openeuphoria.org"

Perhaps via another command, e.g. s?URL (string query) or something similar.

Cheers,
Mark

3. Re: Euphoria 4.0 debugger

• Posted by marky1124 Mar 24, 2009
• 792 views

Hi Bernie,

Thank you for your reply. I fear that you have misunderstood my request. I know how to view the contents of a sequence and how it is displayed with both the numeric value and the ascii character per byte. My request is to have a method to tell the debugger to display the sequence as an ascii string.

For example take this Euphoria code

with trace 
sequence URL 
URL = "http://openeuphoria.org" 
trace(1) 
? 1/0 

Now in the debugger when I type ?URL it displays

URL={104h,116t,116t,112p,58:,47/,47/,111o,112p,101e,110n,101e,117u,112p,104h, 
111o,114r,105i,97a,46.,111o,114r,103g} 

which is also how it is displayed in the ex.err file. I am asking for a way in which to ask the debugger to display it as

URL = "http://openeuphoria.org" 

Cheers,
Mark

5. Re: Euphoria 4.0 debugger

• Posted by bernie Mar 24, 2009
• 797 views

URL     = "http://openeuphoria.org" 
Weights = {104, 116, 116, 112 ,58, 47, 47, 111, 112, 101, 110, 101, 117, 112, 104,  
    111, 114, 105, 97, 46, 111, 114, 103} 

Jeremy:
I looked in the source but I can't figure out how trace displays
Isn't there a way we could switch pretty_print options with some
special key when using the '?' command on a sequence. The manual
says that '?' cmd uses pretty_print.

PS: I guess we can always close are right eye when looking at
sequences with trace.

7. Re: Euphoria 4.0 debugger

• Posted by mattlewis (admin) Mar 24, 2009
• 791 views
• Last edited Mar 25, 2009

The file to look at is be_rterror.c, and probably DisplayVar() is a good place to start. I haven't worked with the internal debugger, though improving that and attaching an external debugger is something that we're probably going to do in the future.

Matt

9. Re: Euphoria 4.0 debugger

• Posted by DerekParnell (admin) Mar 25, 2009
• 761 views

URL     = "http://openeuphoria.org" 
Weights = {104, 116, 116, 112 ,58, 47, 47, 111, 112, 101, 110, 101, 117, 112, 104,  
    111, 114, 105, 97, 46, 111, 114, 103} 

Isn't the point that Euphoria can't tell the difference between a list of integers that fall in the ASCII range, and a string. How does Euphoria know how {100, 101, 114, 101, 107} is meant to be interpreted as? Is it "derek" or a set of integers?

I think the best option at this point is to have another trace command like '?', that prints the variable as a string if it can otherwise display it in sequence notation.

11. Re: Euphoria 4.0 debugger

• Posted by mattlewis (admin) Mar 25, 2009
• 748 views

If we're attempting to display it as a string, then I'd prefer to escape those:

    "\tthis is a string starting with a tab" 
    "a line\r\n" 

Matt