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Write String to a File question

netbug

Dear all,

This is a simple question.

I am using a form to collect data entered by the user. I would like to store this data into a text file, separating each field into different lines in the text file.

I have come up with a solution that is far away from being the best. I have stored all the information into a string and then I've parsed into a list. After that each element of list is written into the file in separate lines.

Please find my code below. In this case I am already passing the list and not the string.

Thanks in advance,

Pedro

procedure(WriteToFile(myPath myList)
let((myPort FileExists txtStr delimiter)
FileExists=isFileName(myPath) ; Test if the file exists

; Check if config file exists
if((FileExists==t) then
printf("File Exists !")
else
myPort=outfile( myPath ) ; open file for write
for( i 0 length(myList)-1 ; loop through the list
str=nth(i myList)
fprintf(myPort "%s\n" str) ; write string to file
)
close( myPort ) ; close file
printf("File Created !")
); end if
); End let
); End procedure

 

Parents
  • Andrew Beckett

    Unknown said:
    Usually with lists it is better to use foreach() than for(), but that is because the code is simpler. The performance only starts to really matter when your lists are 100 elements long.

    Why use an approach that is more complex and requires more code and when you suddenly find yourself dealing with larger lists than you anticipate will get slow very quickly? Yes, for short lists it tends to be insignificant, but then it depends on how many times you are calling the piece of code that is doing this. 

    Much better to get into a good habit in the first place rather than writing code that is stylistically worse and also liable to be inefficient.

    Regards,

    Andrew.

  • rish87
    in reply to Andrew Beckett

    Hi Andrew,

    I would like to open a file in append mode and then write some variables value to the starting of the file(there are some texts exists in the starting of the file).

    Is there any function to write the file from starting? I don't want  to read the file and store it somewhere and again rewrite the file.

    Thank you

    Harish 

  • mbracht
    in reply to rish87

    Hi Harish,

    I don't think this is possible - and it is not a limitation of SKILL but of the Unix filesystem. So you need to recreate the file...

    Max

Reply
  • mbracht
    in reply to rish87

    Hi Harish,

    I don't think this is possible - and it is not a limitation of SKILL but of the Unix filesystem. So you need to recreate the file...

    Max

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