https://guide.aelve.com/haskell/feed/category/m931dr6y2016-04-15T13:06:39Zh1qpe66x2016-04-15T13:06:39Z<h1> <span class="item-name">getArgs :: IO [String]</span> </h1><h2>Pros</h2><ul><p><li>Easy to use</li></p><p><li>No additional libraries</li></p></ul><h2>Cons</h2><ul><p><li>No argument parsing</li></p><p><li>Not declarative</li></p></ul>d13yczyz2016-04-15T13:04:48Z<h1> <span class="item-name">optparse-simple</span> (<a href="https://hackage.haskell.org/package/optparse-simple">Hackage</a>) </h1><h2>Pros</h2><ul></ul><h2>Cons</h2><ul></ul>b0tvar692016-04-15T13:02:37Z<h1> <span class="item-name">uu-options</span> (<a href="https://hackage.haskell.org/package/uu-options">Hackage</a>) </h1><h2>Pros</h2><ul></ul><h2>Cons</h2><ul></ul>i1u0ybkl2016-04-15T12:58:46Z<h1> <span class="item-name">console-program</span> (<a href="https://hackage.haskell.org/package/console-program">Hackage</a>) </h1><h2>Pros</h2><ul></ul><h2>Cons</h2><ul></ul>vk7t1j1v2016-04-15T12:57:20Z<h1> <span class="item-name">hflags</span> (<a href="https://hackage.haskell.org/package/hflags">Hackage</a>) </h1><h2>Pros</h2><ul></ul><h2>Cons</h2><ul></ul>rr6x9cwy2016-04-15T12:45:55Z<h1> <a href="https://hackage.haskell.org/package/base/docs/System-Console-GetOpt.html" class="item-name">System.Console.GetOpt</a> </h1><h2>Pros</h2><ul></ul><h2>Cons</h2><ul></ul>ai5amw2w2016-04-15T12:45:44Z<h1> <span class="item-name">multiarg</span> (<a href="https://hackage.haskell.org/package/multiarg">Hackage</a>) </h1><h2>Pros</h2><ul></ul><h2>Cons</h2><ul></ul>u77ds55o2016-04-15T12:43:19Z<h1> <span class="item-name">lambda-options</span> (<a href="https://hackage.haskell.org/package/lambda-options">Hackage</a>) </h1><p>Define options and their argument parameters using lambda functions.</p> <h2>Pros</h2><ul><p><li>Declarative</li></p><p><li>Option parameters are statically typed</li></p><p><li>Support for custom types</li></p><p><li>Safe Haskell</li></p></ul><h2>Cons</h2><ul></ul>rjif5pdt2016-04-15T12:43:04Z<h1> <span class="item-name">cmdargs</span> (<a href="https://hackage.haskell.org/package/cmdargs">Hackage</a>) </h1><h2>Pros</h2><ul></ul><h2>Cons</h2><ul></ul>fk8tlojq2016-04-15T12:43:00Z<h1> <span class="item-name">docopt</span> (<a href="https://hackage.haskell.org/package/docopt">Hackage</a>) </h1><h2>Pros</h2><ul></ul><h2>Cons</h2><ul></ul>rl8pkan42016-04-15T12:42:58Z<h1> <span class="item-name">options</span> (<a href="https://hackage.haskell.org/package/options">Hackage</a>) </h1><h2>Pros</h2><ul></ul><h2>Cons</h2><ul></ul>g0r4lc9m2016-04-14T09:43:53Z<h1> <span class="item-name">optparse-applicative</span> (<a href="https://hackage.haskell.org/package/optparse-applicative">Hackage</a>) </h1><h2>Pros</h2><ul><p><li>A lot of examples</li></p><p><li>Powerful, declarative argument parsing</li></p><p><li>Generates usage messages for command line applications</li></p><p><li>Uses known typeclasses, such as Applicative and Monoid</li></p><p><li>Arguments are statically typed</li></p></ul><h2>Cons</h2><ul><p><li>Might be hard to write, but examples substitute that</li></p></ul><h2>Notes</h2><h1><span id="item-notes-g0r4lc9m-links"></span>Links</h1><ul> <li><a href="https://gist.github.com/neongreen/a3c3ebc430c53ec7d0af1b67a2566fc2">an example of parsing commands with subcommands, flags, and global flags</a></li> </ul> <h1><span id="item-notes-g0r4lc9m-imports"></span>Imports</h1><p>Most commonly used imports from the library</p> <h1><span id="item-notes-g0r4lc9m-usage"></span>Usage</h1><p>Some examples</p> <h1><span id="item-notes-g0r4lc9m-gotchas"></span>Gotchas</h1><p>Common mistakes and non-obvious things</p>