readline

Why do I get the "Unhandled exception type IOException"?

I have the following simple code: import java.io.*; class IO { public static void main(String[] args) { BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in)); String userInput; while ((userInput = stdIn.readLine()) != null) { System.out.println(userInput); } ...

What will give me something like ruby readline with a default value?

If I want to have a prompt on the terminal with a default value already typed in, what library should I use? Ruby's standard Readline.readline() lets me set the history but not fill in a default value (as far as I can tell, at least) Something like: code: input = Readline.readline_with_default('>', 'default_text') console: > def...

How many characters can read by using the readline() method in java?

I using readLine() method for reading the text, but i am not aware of how many text can read that method. Ex. String str = in.readLine(); how many texts can read and store on "str"? ...

force exit from readline() function.

I am writing program in c++ which runs GNU readline in separate thread. When main thread is exited I need to finish the thread in which readline() function is called. The readline() function is returned only when standart input came (enter pressed). Is there any way to send input to application or explicitly return from readline functio...

What is a good way to read in text?

Hello! In my sms-script I read in the text to send with this subroutine: my $input = input( "Enter the input: " ); sub input { my $arg = shift; print $arg if $arg; print "\n "; chomp( my $in = <> ); return $in; } This way I can correct errors only through canceling all until I reach the error and this only in the ...

GNU readline: avoid prompt string in output if input is not interactive

I have a readline-based application with a prompt, however I'd like it to not show when the input is not interactive. $ ./readline-app < command-list > result $ cat result prompt> Output line 1 prompt> Output line 2 prompt> $ How can I make the prompt to not print in this case? ...

Readline, the Input Record Separator and Ruby

In Ruby I'm looking to read data until I reach a delimiter or end of file. I found this is possible by redefining $/ or the $INPUT_RECORD_SEPARATOR to my delimiter. However with all the "features" in the Ruby language it seems hokey to change the value of a global to do this. Also, readline used to consume the delimiter while not it is ...

What is the right way to stop an infinite while-loop with a Term::Readline-readline?

What is the right way to stop an endless while-loop with a Term::Readline::readline? This way I can not read in a single 0 #!/usr/bin/env perl use warnings; use strict; use 5.010; use Term::ReadLine; my $term = Term::ReadLine->new( 'Text' ); my $content; while ( 1 ) { my $con = $term->readline( 'input: ' ); last if not $con;...

Question about Java File Reader.

Hello. I'm having some problems with the FileReader class. How do I specify an offset in the lines it goes through, and how do I tell it when to stop? Let's say I want it to go through each line in a .txt file, but only lines 100-200 and then stop? How would I do this? Right now I'm using ReadLine() but I don't think there's a way to s...

C++ cin keeps skipping.....

I am having problems with my program. WHen I run it, it asks the user for the album, the title, but then it just exits the loop without asking for the price and the sale tax. Any ideas what's going on? This is a sample run Discounts effective for September 15, 2010 Classical 8% Country 4% International 17% Jazz 0% Rock 16% S...

How should I read from a buffered reader?

I have the following example of reading from a buffered reader: while ((inputLine = input.readLine()) != null) { System.out.println("I got a message from a client: " + inputLine); } The code in the loop println will be executed whenever something appears in the buffered reader (input in this case). In my case, if a client-applicati...

Why is iPdb not displaying STOUT after my input?

I can't figure out why ipdb is not displaying stout properly. I'm trying to debug why a test is failing and so I attempt to use ipdb debugger. For some reason my Input seems to be accepted, but the STOUT is not displayed until I (c)ontinue. Is this something broken in ipdb? It makes it very difficult to debug a program. Below is an ex...

C readline function

In an assignment for college it was suggested to use the c readline function in an exercise. I have searched for its reference but still haven't found it. Does it really exist? In which header? Can you please post the link to the reference? Thanks. ...

ungetc in Python

Some file read (readlines()) functions in Python copy the file contents to memory (as a list) I need to process a file that's too large to be copied in memory and as such need to use a file pointer (to access the file one byte at a time) -- as in C getc(). The additional requirement I have is that I'd like to rewind the file pointe...

Delphi: Alternative to using Reset/ReadLn for text file reading

i want to process a text file line by line. In the olden days i loaded the file into a StringList: slFile := TStringList.Create(); slFile.LoadFromFile(filename); for i := 0 to slFile.Count-1 do begin oneLine := slFile.Strings[i]; //process the line end; Problem with that is once the file gets to be a few hundred megabytes, i ha...

How to make ghci support ^p to go up?

I use Ctrl p a lot instead of up arrow to go up on Terminal. How to make ghci support Ctrl p to go up? I use ghci from ghc98 from port. Mac OS X 10.5.8. ...

readline-like library for Java

Which readline-like library for Java do you use? By 'readline' like library I mean library for editing console input, with support for history, tab-completion, and stuff like this. I'm looking for one, and I cannot choose from so many choices (jLine -- unmaintained, java-readline -- last release on 2003, others?) ...

how to read multi lines in text file in c#?

i like to read check the text has multi line or single line and then i am going to read that multi lines and convert into single line how can i do this? ...

C# Looping A Process Over And Over Until A User Presses A Key

I have a schedule checker that needs to run until a user presses a key to make it stop. My thoughts on doing this are as follows: The user starts the process Process runs every 10 seconds When the process is not running, Console.ReadLine(); gives the user the option to press "q" to stop the process My approach would work fine exce...

RVM doesn't work for 1.9.1 but works for 1.8.6 and 1.8.7

UPDATE 6/25/10 Using Google, I am not the only person to encounter this problem. Apparently this problem has to do with readline. Has anyone out there encountered this issue? (see error at make.error.log below) As google suggests, I compiled readline: curl -O ftp://ftp.gnu.org/gnu/readline/readline-6.1.tar.gz tar xzvf readline-6.1.tar....