I/O function

[Laura Brody]

Quoting Brandt Eppler <beppler300 at verizon.net>:

> Hi
>
> Does anyone have a simple sample of code using the i/o functions?
>
> All I need to do is open a file and write 1 line of data to it at
> a time.
>

 From my "Laura's Quick Reference Guide and filePro Help File"
product (available at www.hvcomputer.com):

@@@ WRITE()
v4.5   \r n = WRITE(handle,str [,n] ) \r - Write data to a file.
		The str is the data to write to the file. The
		last parameter specifies the number of bytes to write.
		If omitted, the entire contents of str is written. The
		return value is the number of bytes written.

Example:

       then: declare local handle(8,.0)
       then: handle = create("/tmp/myfile.dat","rwt")
         if: handle le "0"  ' Create failed.
       then: end
       then: x = WRITE(handle,"This is a test") ' x will contain 14.
       then: x = WRITE(handle, at T4)              ' x will contain 10.

See also: CREATE(), OPEN(), READ(), READLINE(), WRITELINE()
@@@ WRITELINE()
v4.5   \r n = WRITELINE(handle,str [,n] ) \r - Write data to a file,
		appending a newline character. The str is the data to
		write to the file. The last parameter specifies the number
		of bytes to write, not including the newline. If omitted, the
		entire contents of str is written. The return value is the
		number of bytes written.

Example:
       then: declare local handle(8,.0)
       then: handle = open("/tmp/myfile.dat","rwt")
         if: handle le "0"  ' Open failed.
       then: end
       then: seek(handle,"0","e") 'position to end of file
       then: x = WRITELINE(handle,"This is a test") ' x will contain 15 under
                                                    ' UNIX and 16 on DOS.
See also: CREATE(), OPEN(), READ(), READLINE(), WRITE()



> Thanks in advance
>
> Brandt
>
> Brandt Eppler
> 443.677.3539
> beppler300 at verizon.net
>
> Aut viam inveniam aut faciam  Magna est Veritas et Praevalebit
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--
Laura Brody
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