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Reading String from txt file

frasheed

Hello All,

I am writing a short code to read Strings from a file.

Example of file that I want to read.

SAMPLE DATA

Name "Technology" "Version" "revision"

started "15july" "30july"

label "New" "Old"

and the code is

f = infile(my.txt)

while( str = lineread(f)
        case( car(str)
            ( Name               
                  Name = cdr(str)
             )                 
            );; end case

);; end while

Now after reading the values store in Name variable is ( "Technology" "Version" "revision"), and when I check the type for variable "Name" its showing me "list" but when I access any element using nth(0 Name) then its giving me ("Technology"), which is neither symbol nor string , I want it to be string without the paranthesis.

Any Good way to do that, I tried  pcExprToString command but its not giving me the desired output. 

Thanks

 

Parents
  • Andrew Beckett

    No it doesn't. nth(0 Name) will return "Technology". Or you could use car(Name):

    > Name
    ("Technology" "Version" "revision")
    > car(Name)
    "Technology"
    > cadr(Name)
    "Version"
    > nth(1 Name)
    "Version"
    > nth(2 Name)
    "revision"
    > nth(0 Name)
    "Technology"

    Presumably what you've done doesn't match what you've posted (after all your infile is missing quotes around the filename, so I'm assuming the code wasn't necessarily cut and pasted into the post).

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    No it doesn't. nth(0 Name) will return "Technology". Or you could use car(Name):

    > Name
    ("Technology" "Version" "revision")
    > car(Name)
    "Technology"
    > cadr(Name)
    "Version"
    > nth(1 Name)
    "Version"
    > nth(2 Name)
    "revision"
    > nth(0 Name)
    "Technology"

    Presumably what you've done doesn't match what you've posted (after all your infile is missing quotes around the filename, so I'm assuming the code wasn't necessarily cut and pasted into the post).

    Regards,

    Andrew.

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