stdin

I want to do something like: for line in sys.stdin: do_something() if is **END OF StdIn**: do_something_special() After a few tries, for now I am doing this: while True: try: line = sys.stdin.next() print line, except StopIteration: print 'EOF!' break Or with this: while True: line = sys.stdin.readline() if not line: print 'EOF!' break print line, I think both above ways are very similar. I want to know is there a more elegant (pythonic) way to do this? Early failed tries: I first tried to catch the StopIteration from inside or outside of a for loop, but I soon realize that since the

I have a function that executes the following (among other things): userinput = stdin.readline() betAmount = int(userinput) Is supposed to take input integer from stdin as a string and convert it to an integer. When I call the function, however, it returns a single newline character (it doesn't even wait for me to input anything). Earlier in the program I get some input in the form of: stdin.read(1) to capture a single character. Could this have something to do with it? Am I somehow writing a newline character to the next line of stdin? How can I fix this? stdin.read(1) reads one character

If fclose(0) is called, does this close stdin? The reason why I'm asking this is that for some reason, stdin is being closed in my application and I cannot figure out why. I checked for fclose (stdin) and this is not in the application and so I was wondering if fclose(0) could cause undefined behaviour such as closing stdin? If not, what are other ways that stdin could be erroneously closed? The signature of fclose is this: int fclose ( FILE * stream ); That means, fclose expects a pointer to FILE object. So if you pass 0 , instead of a pointer, 0 would be understood as NULL pointer 1 . If its

In the following code process.stdin.resume(); process.stdin.setEncoding('utf8'); process.stdin.on('data', function(chunk) { process.stdout.write('data: ' + chunk); }); process.stdin.on('end', function() { process.stdout.write('end'); }); i can't trigger the 'end' event using ctrl+D, and ctrl+C just exit without triggering it. hello data: hello data data: data foo data: foo ^F data: ♠ ^N data: ♫ ^D data: ♦ ^D^D data: ♦♦ I'd change this: process.stdin.on('end', function() { process.stdout.write('end'); }); To this: process.on('SIGINT', function(){ process.stdout.write('\n end \n'); process.exit(

I'm working on an JAVA assignment should process multiple lines of input. The instructions read "Input is read from stdin." An example of sample input is given: one 1 two 2 three 3 I don't understand what the above sample input "read from stdin" means. Here's a test program I wrote that isolates my confusion: import java.io.*; import java.util.Scanner; class Test { public static void main(String[] args) { Scanner stdin = new Scanner(System.in); while(stdin.hasNextLine()) { String line = stdin.nextLine(); String[] tokens = line.split(" "); System.out.println(Integer.parseInt(tokens[1])); } }

How can I separate the lines which are coming from a pipe. In the pipe there is this text: HALLO:500\n TEST:300\N ADAD ADAWFFA AFAGAGAEG I want to separate the lines from the pipe because i want to save the values in variables. Here is my c code: #include <stdio.h> #include <stdlib.h> #define BUFFERSIZE 1 int main(int argc, char **argv){ unsigned char buffer[BUFFERSIZE]; FILE *instream; int bytes_read=0; int buffer_size=0; buffer_size=sizeof(unsigned char)*BUFFERSIZE; /* open stdin for reading */ instream=fopen("/dev/stdin","r"); /* did it open? */ if(instream!=NULL){ /* read from stdin until