Expected Input

Stop if Input is Empty is a free Automator action that will automatically stop the currently running workflow if its input is empty or null. Platforms: Mac

GNU libmatheval is a library (callable from C and Fortran) to parse and evaluate symbolic expressions input as text. libmatheval supports expressions in any number of variables of arbitrary names, decimal and symbolic constants, basic unary and binary operators, and elementary mathematical... Platforms: *nix

Gogh is a graphical editor designed for pressure-sensitive input devices. Gogh is a bitmap graphical editor implemented in Python. Gogh allows multi-layered images and multiple undo-redo of any action that affects the image.. Platforms: *nix

EvRouter reads events from the Linux input layer, and acts on them according to a user-specified set of rules. Currently, EvRouter can map events to X11 key and button presses, XMMS commands, and it can also run shell commands. EvRouter is intended to help legacy applications understand modern... Platforms: *nix

Statistics::CalinskiHarabasz is a Perl extension to the cluster stopping rule proposed by Calinski and Harabasz (C&H). SYNOPSIS use Statistics::CalinskiHarabasz; &ch(InputFile, "agglo", 10); Input file is expected in the "dense" format - Sample Input file: 6 5 1 1 0 0 1 1 0 0 0 0 1 1... Platforms: *nix

postprox is an SMTP proxy which copies an SMTP conversation between its input and another SMTP server, but spools the DATA portion to a temporary file and runs a specified program on it before passing it on to the output server - or outputting an SMTP error code instead if the content filter says... Platforms: *nix

Stream::Reader is a stream reader Perl class. SYNOPSIS # Input stream can be reference to TYPEGLOB or SCALAR, output stream # can be the same types or undefined # Constructor $stream = Stream::Reader->new( *IN, { Limit => $limit, BuffSize => $buffsize, Mode => UB } ); # Reading all... Platforms: *nix

Libexecstream is a C++ library that allows you to run a child process and have its input, output and error avaliable as standard C++ streams.. Platforms: *nix

Randomize Lines (rl) is a command-line tool that reads lines from an input file or stdin, randomizes the lines and outputs a specified number of lines. It does this with only a single pass over the input while trying to use as little memory as possible. I wrote rl in my spare time mainly to be... Platforms: *nix

ByteName project is a tool that for each byte of the input prints a line consisting of the byte offset, the hex value of the byte, the octal value of the byte, and its description in Latin-1, Latin-2, WinLatin1, WinLatin2, or EBCDIC. A command line flag suppresses printing of bytes within the... Platforms: *nix

Pipemeter is a command line utility that displays the speed and, if possible, progress, of data moving from its input to its output.. Platforms: *nix

IO::Prompt is a Perl module to interactively prompt for user input. SYNOPSIS use IO::Prompt; while( prompt "next: " ) { print "You said $_n"; } By default, this module exports a single function prompt. It prompts the user to enter some input, and returns an object that represents the... Platforms: *nix

IO::Busy is a Perl module to intercept terminal input while something else is happening. SYNOPSIS use IO::Busy; my $fh = busy { non_interactive_stuff(); }; This module exports a single subroutine, named busy. That subroutine takes a single argument, which must be a block of code. busy... Platforms: *nix

IO::InSitu is a Perl module to avoid clobbering files opened for both input and output. SYNOPSIS use IO::InSitu; my ($in, $out) = open_rw($infile_name, $outfile_name); for my $line (<$in>) { $line =~ s/foo/bar/g; print {$out} $line; } When users want to do in-situ processing on a... Platforms: *nix

Data::FormValidator::Constraints is a Perl module with basic sets of constraints on input profile. SYNOPSIS use Data::FormValidator::Constraints qw(:all); In an Data::FormValidator profile: constraint_methods => { email => email(), fax => american_phone(), phone => american_phone(),... Platforms: *nix

yagg, given YACC-like and LEX-like input files, generates a C++ program that generates all strings of a user-specified length. yagg can then be used to generate inputs for testing, or to validate that a grammar accepts the strings that you think it does. The grammar file provides the grammar... Platforms: *nix

xmms sndfile is an input plugin for XMMS. Using xmms_sndfile extends the capabilities of XMMS to open and play any file which can be opened and read by libsndfile, including WAV, AIFF, AU, and SVX files and many compressed version of these file formats.. Platforms: *nix

Command Line WRAPper is a tool that provides an easy way to build and run commands from input lines, avoiding the use of shell script. It is similar to xargs. clwrap can make great things with the locate command, and is low resource intensive. It can also do some not-quite-fun works like... Platforms: *nix

HTML_QuickForm_LiveText project is custom HTML_QuickForm element implemented as an input text that intercepts key presses to perform a query via AJAX and then shows the result. When a result line is selected, its value fills the input text and optionally other HTML elements, based on result... Platforms: *nix

KeyWatcher is a daemon that monitors events from the new Linux input system and to perform actions based on certain events. In other words, multimedia keys like play, stop, mute, etc. can be made to do what they say... KeyWatcher is similar to LinEAK and xhkeys, but does not require X. The... Platforms: *nix