DMDScript - How to read a redirected file [stdin] until EOF ?
- Anthony Borla (39/39) Oct 30 2005 Greetings,
Greetings, I'd like to read into a DMDScript script data from a file that has been redirected as input from the command-line. For example, if I enter the following command: ds myscript.ds < myfile.txt I would like the contents of 'myfile.txt' available to the script. Importantly, too, it should be possible to accept 'empty' lines [i.e. lines consisting solely of the end-of-line terminator] without terminating the reading process. I am able to accomplish this task via the Windows Scripting Host using the following code: var fStream = WScript.StdIn; var buffer; while (!fStream.AtEndOfStream) { buffer = fStream.ReadLine(); WScript.Echo(buffer); } I understand that the nearest analog to such functionality in DMDScript is the 'readln' function, and that the DMDScript equivalent to above code is something like: var buffer = readln(); while (buffer.length > 0) { println(buffer); buffer = readln(); } This code works as long as no 'empty' lines are encountered; it is thus not possible to read in a textfile containing such lines, something I would class as more than a mere annoyance. My question in this case, are: * Have I perhaps missed someting in my use of 'readln' and that it is actually able to read 'empty' lines without terminating ? * If not, then are there any plans for this situation to be remedied in a future release of DMDScript ? I look forward to any response. Cheers, Anthony Borla
Oct 30 2005