readLine
Syntax
readLine(handle)
Arguments
handle is the handle of the file to read.
Examples
Read a line from the given file. The return line doesn't include the line delimiter. If the file reaches the end, the function will return a NULL object which can be tested by the isNull function.
Examples
x=`IBM`MSFT`GOOG`YHOO`ORCL;
eachRight(writeLine, file("test.txt","w"), x);
// output
[1,1,1,1,1]
fin = file("test.txt")
do{
x=fin.readLine()
if(x.isNull()) break
print x
}while(true);
// output
IBM
MSFT
GOOG
YHOO
ORCL
Related function: writeLine