1. Variable problems
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Irv -
In your reply to my inquiry about variables in Euphoria, you asked for a
couple of lines from the data file to check the format. Here it is:
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Irv - reply via listserv
In your reply to my inquiry about variables in Euphoria, you
asked for a couple of lines from the data file to check the
format. Here it is:
{{"AL","FL",208}, {"AL","GA",163}, {"AL","MS",247},
{"AL","TN",286}, {"AR","LA",333}, {"AR","MO",351},
{"AR","MS",261}, {"AR","OK",344}, {"AR","TN",351},
{"AR","TX",500}, {"AZ","CA",769}, {"AZ","NM",528},
{"AZ","NV",703}, {"AZ","UT",655}, {"CA","AZ",769},...{...},{...}}
These are the first 15 elements of a sequence of 210 sub-
sequences. The number in each subsequence is the distance in
miles between the capitals of the two states in that subsequence.
The big sequence is in a separate file; the program contains
"open", "get", and "close" commands to use the file.
Since the file is so large, I shudder to think of initializing
each state name as a separate blank sequence. Or did you mean
initialize one (or two?) variables as blank sequences, and plug
the state names into them?
Some of the problems that triggered my inquiry were corrected
when I discovered typographical errors in the program. But some
still remain. In one version of the program, I declared all the
variables right after the list of 'include' files, but omitting
the word 'global'. The program hangs up at a function call well
along in the program, not near the beginning. The hangup comes
immediately after a sequence of strings forming a dummy file that
gives Euphoria a starting point. When Euphoria sees the function
call, followed by a parenthesis, it says it expects 'end' instead
of the parenthesis.
Another version of the program declares the variables in the same
place, but with the word 'global' added to each declaration. It
hangs up in the same place. Previously Euphoria thought the word
'global' was itself a variable; it seems to have gotten over that
problem by itself.
In the third copy of the program, I placed the list of global
declarations just before the 'main' part of the program, after
the last procedure. Now the program finds a variable in the very
first function of the program, saying that it hasn't been
declared, whereas it is actually one of the global declarations.
If you want to see a copy of any of the listings, or all of them,
please let me know.
I just saw your later message about include files. You
misunderstood my comment. When I said I hadn't figured them out
yet, I meant I just hadn't gotten around to writing my own. I
know what they're good for. But thanks anyway.
Wally Riley
wryly at mindspring.com
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