1005 lines
31 KiB
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1005 lines
31 KiB
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Fortgeschrittene funktionale Programmierung in Haskell – Home
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overflow: hidden !important;
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<li class='inline-flex items-center'>
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<div id='container' class='flex flex-nowrap flex-col md:flex-row bg-gray-50 md:mt-8 md:shadow-2xl md:mb-8'>
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Home
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<!-- Variable bindings for this tree-->
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<!-- Rendering of this tree -->
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<div class='pl-2'>
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<!-- Node's rootLabel-->
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<div class='flex items-center my-2 space-x-2 justify-left'>
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<svg xmlns='http://www.w3.org/2000/svg' class='w-4 h-4 flex-shrink-0 inline text-gray-500' viewBox='0 0 20 20' fill='currentColor'>
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<path d='M2 6a2 2 0 012-2h5l2 2h5a2 2 0 012 2v6a2 2 0 01-2 2H4a2 2 0 01-2-2V6z'></path>
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<a class='hover:underline truncate' title='About' href='About'>
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About
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<span class='text-gray-300' title='3 children inside'>
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3
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</span>
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</div>
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<!-- Node's children forest, displayed only on active trees
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||
TODO: Use <details> to toggle visibility?
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-->
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</div>
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<!-- Variable bindings for this tree-->
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<!-- Rendering of this tree -->
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||
<div class='pl-2'>
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||
<!-- Node's rootLabel-->
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||
<div class='flex items-center my-2 space-x-2 justify-left'>
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||
|
||
|
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<svg xmlns='http://www.w3.org/2000/svg' class='w-4 h-4 flex-shrink-0 inline text-gray-500' viewBox='0 0 20 20' fill='currentColor'>
|
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<path d='M2 6a2 2 0 012-2h5l2 2h5a2 2 0 012 2v6a2 2 0 01-2 2H4a2 2 0 01-2-2V6z'></path>
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</svg>
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<a class='hover:underline truncate' title='Android' href='Android'>
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Android
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</a>
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<span class='text-gray-300' title='1 children inside'>
|
||
1
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</span>
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||
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||
|
||
</div>
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||
|
||
<!-- Node's children forest, displayed only on active trees
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||
TODO: Use <details> to toggle visibility?
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||
-->
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||
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||
</div>
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||
|
||
<!-- Variable bindings for this tree-->
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||
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||
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||
<!-- Rendering of this tree -->
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||
<div class='pl-2'>
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||
<!-- Node's rootLabel-->
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||
<div class='flex items-center my-2 space-x-2 justify-left'>
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||
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||
|
||
<svg xmlns='http://www.w3.org/2000/svg' class='w-4 h-4 flex-shrink-0 inline text-gray-700' viewBox='0 0 20 20' fill='currentColor'>
|
||
<path fill-rule='evenodd' d='M2 6a2 2 0 012-2h4l2 2h4a2 2 0 012 2v1H8a3 3 0 00-3 3v1.5a1.5 1.5 0 01-3 0V6z' clip-rule='evenodd'></path>
|
||
<path d='M6 12a2 2 0 012-2h8a2 2 0 012 2v2a2 2 0 01-2 2H2h2a2 2 0 002-2v-2z'></path>
|
||
</svg>
|
||
|
||
|
||
<a class='font-bold hover:underline truncate' title='Haskell' href='Haskell'>
|
||
Haskell
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||
</a>
|
||
|
||
|
||
</div>
|
||
|
||
<!-- Node's children forest, displayed only on active trees
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||
TODO: Use <details> to toggle visibility?
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||
-->
|
||
|
||
|
||
<!-- Variable bindings for this tree-->
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<!-- Rendering of this tree -->
|
||
<div class='pl-2'>
|
||
<!-- Node's rootLabel-->
|
||
<div class='flex items-center my-2 space-x-2 justify-left'>
|
||
|
||
|
||
<svg xmlns='http://www.w3.org/2000/svg' class='w-4 h-4 flex-shrink-0 inline text-gray-500' viewBox='0 0 20 20' fill='currentColor'>
|
||
<path d='M2 6a2 2 0 012-2h5l2 2h5a2 2 0 012 2v6a2 2 0 01-2 2H4a2 2 0 01-2-2V6z'></path>
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||
</svg>
|
||
|
||
|
||
<a class='hover:underline truncate' title='Code-Snippets' href='Haskell/Code%20Snippets'>
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||
Code-Snippets
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||
</a>
|
||
|
||
|
||
<span class='text-gray-300' title='2 children inside'>
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||
2
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</span>
|
||
|
||
|
||
</div>
|
||
|
||
<!-- Node's children forest, displayed only on active trees
|
||
TODO: Use <details> to toggle visibility?
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||
-->
|
||
|
||
</div>
|
||
|
||
<!-- Variable bindings for this tree-->
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<!-- Rendering of this tree -->
|
||
<div class='pl-2'>
|
||
<!-- Node's rootLabel-->
|
||
<div class='flex items-center my-2 space-x-2 justify-left'>
|
||
|
||
|
||
<svg class='w-4 h-4 flex-shrink-0 inline' fill='none' stroke='currentColor' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'>
|
||
<path stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z'>
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||
</path>
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||
</svg>
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||
|
||
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||
<a class='font-bold text-purple-600 hover:underline truncate' title='Fortgeschrittene funktionale Programmierung in Haskell' href='Haskell/FFPiH'>
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||
Fortgeschrittene funktionale Programmierung in Haskell
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</a>
|
||
|
||
|
||
</div>
|
||
|
||
<!-- Node's children forest, displayed only on active trees
|
||
TODO: Use <details> to toggle visibility?
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||
-->
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<!-- Variable bindings for this tree-->
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<!-- Rendering of this tree -->
|
||
<div class='pl-2'>
|
||
<!-- Node's rootLabel-->
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||
<div class='flex items-center my-2 space-x-2 justify-left'>
|
||
|
||
|
||
<svg class='w-4 h-4 flex-shrink-0 inline' fill='none' stroke='currentColor' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'>
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||
<path stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z'>
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||
</path>
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||
</svg>
|
||
|
||
|
||
<a class='hover:underline truncate' title='Lenses' href='Haskell/Lenses'>
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||
Lenses
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||
</a>
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<!-- Node's children forest, displayed only on active trees
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||
TODO: Use <details> to toggle visibility?
|
||
-->
|
||
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||
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<!-- Variable bindings for this tree-->
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|
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|
||
<svg class='w-4 h-4 flex-shrink-0 inline' fill='none' stroke='currentColor' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'>
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|
||
</path>
|
||
</svg>
|
||
|
||
|
||
<a class='hover:underline truncate' title='Talks und Posts zu Haskell' href='Haskell/Advantages'>
|
||
Talks und Posts zu Haskell
|
||
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|
||
|
||
|
||
|
||
|
||
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|
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|
||
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||
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||
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||
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<svg xmlns='http://www.w3.org/2000/svg' class='w-4 h-4 flex-shrink-0 inline text-gray-500' viewBox='0 0 20 20' fill='currentColor'>
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|
||
</svg>
|
||
|
||
|
||
<a class='hover:underline truncate' title='Webapp-Development in Haskell' href='Haskell/Webapp-Example'>
|
||
Webapp-Development in Haskell
|
||
</a>
|
||
|
||
|
||
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|
||
2
|
||
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|
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|
||
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||
|
||
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|
||
TODO: Use <details> to toggle visibility?
|
||
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<div class='flex items-center my-2 space-x-2 justify-left'>
|
||
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|
||
<svg class='w-4 h-4 flex-shrink-0 inline' fill='none' stroke='currentColor' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'>
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<path stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z'>
|
||
</path>
|
||
</svg>
|
||
|
||
|
||
<a class='hover:underline truncate' title='Logik für Dummies' href='Logik'>
|
||
Logik für Dummies
|
||
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|
||
|
||
|
||
|
||
|
||
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|
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||
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||
TODO: Use <details> to toggle visibility?
|
||
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||
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||
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||
<svg xmlns='http://www.w3.org/2000/svg' class='w-4 h-4 flex-shrink-0 inline text-gray-500' viewBox='0 0 20 20' fill='currentColor'>
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||
<path d='M2 6a2 2 0 012-2h5l2 2h5a2 2 0 012 2v6a2 2 0 01-2 2H4a2 2 0 01-2-2V6z'></path>
|
||
</svg>
|
||
|
||
|
||
<a class='hover:underline truncate' title='Uni' href='Uni'>
|
||
Uni
|
||
</a>
|
||
|
||
|
||
<span class='text-gray-300' title='2 children inside'>
|
||
2
|
||
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||
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||
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||
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|
||
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||
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||
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|
||
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||
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||
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||
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||
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||
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|
||
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||
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||
<svg xmlns='http://www.w3.org/2000/svg' class='w-4 h-4 flex-shrink-0 inline text-gray-500' viewBox='0 0 20 20' fill='currentColor'>
|
||
<path d='M2 6a2 2 0 012-2h5l2 2h5a2 2 0 012 2v6a2 2 0 01-2 2H4a2 2 0 01-2-2V6z'></path>
|
||
</svg>
|
||
|
||
|
||
<a class='hover:underline truncate' title='Unix' href='Unix'>
|
||
Unix
|
||
</a>
|
||
|
||
|
||
<span class='text-gray-300' title='1 children inside'>
|
||
1
|
||
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|
||
|
||
|
||
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|
||
|
||
<!-- Node's children forest, displayed only on active trees
|
||
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|
||
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|
||
|
||
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|
||
|
||
|
||
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|
||
</nav>
|
||
|
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|
||
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|
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|
||
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|
||
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|
||
|
||
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|
||
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|
||
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|
||
|
||
<ul>
|
||
|
||
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|
||
|
||
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|
||
<a href='About/CV'>
|
||
About me
|
||
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|
||
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|
||
|
||
|
||
<ul>
|
||
|
||
<li>
|
||
|
||
<div class='text-gray-900 forest-link'>
|
||
<a href='About'>
|
||
About
|
||
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|
||
</div>
|
||
|
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|
||
<ul>
|
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|
||
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|
||
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|
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|
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Home
|
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||
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|
||
|
||
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|
||
|
||
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|
||
|
||
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|
||
|
||
<li>
|
||
|
||
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|
||
<a href='Uni/Extracurricular'>
|
||
Studium generale / University-Life
|
||
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|
||
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|
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|
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|
||
<ul>
|
||
|
||
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|
||
|
||
<div class='text-gray-900 forest-link'>
|
||
<a href='Uni'>
|
||
Uni
|
||
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|
||
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|
||
|
||
|
||
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|
||
|
||
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|
||
|
||
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|
||
|
||
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|
||
|
||
<div class='text-gray-900 forest-link'>
|
||
<a href='Haskell'>
|
||
Haskell
|
||
</a>
|
||
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|
||
|
||
|
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</li>
|
||
|
||
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|
||
|
||
</li>
|
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</ul>
|
||
</nav>
|
||
<h1 class='flex items-end justify-center mb-4 p-3 bg-purple-100 text-5xl font-extrabold text-black rounded'>
|
||
<a class='z-40 tracking-tighter '>
|
||
Fortgeschrittene funktionale Programmierung in Haskell
|
||
</a>
|
||
</h1>
|
||
<article class='overflow-auto'>
|
||
<!-- What goes in this file will appear on top of note body-->
|
||
|
||
<p class='mb-3'>
|
||
FFPiH ist eine Vorlesung, die ich zusammen mit einem Kommilitonen im Sommer 2015 erstmals erstellt und gehalten haben.
|
||
</p>
|
||
|
||
<p class='mb-3'>
|
||
Insgesamt haben wir die Vorlesung 3x gehalten, wobei von der ersten zur zweiten Iteration der Inhalt massiv überarbeitet wurde und bei der Iteration von der zweiten zur dritten Vorlesung die Übungen komplett neu erstellt wurden.
|
||
</p>
|
||
|
||
<p class='mb-3'>
|
||
Die gesamten Übungen sind unter anderem in der FFPiH-Organisation in meinem gitea hinterlegt: <a href='https://gitea.dresselhaus.cloud/FFPiH' class='text-purple-600 hover:underline' target='_blank' rel='noopener'><a href='https://gitea.dresselhaus.cloud/FFPiH' class='text-purple-600 hover:underline' target='_blank' rel='noopener'>https://gitea.dresselhaus.cloud/FFPiH</a></a>
|
||
</p>
|
||
|
||
<p class='mb-3'>
|
||
Einige der aktualisierten Übungen sind privat geschaltet, da diese iterativ aufeinander aufbauen und jeweils die Musterlösung der vorherigen enthalten.
|
||
</p>
|
||
<h2 id='aufbau-der-vorlesung' class='inline-block mt-6 mb-4 text-4xl font-bold text-gray-700 border-b-2'>Aufbau der Vorlesung</h2>
|
||
<p class='mb-3'>
|
||
Vorausgesetzt wurde, dass die Studierenden das erste Semester abgeschlossen hatten und somit bereits leichte Grundlagen in Haskell kannten (aber z.b. Dinge wie Functor/Applicative/Monad noch nicht <em>wirklich</em> erklärt bekommen haben).
|
||
</p>
|
||
|
||
<p class='mb-3'>
|
||
Stück für Stück werden die Studis dann zunächst in abstrakte Konstrukte eingeführt, aber diese werden dann schnell in die Praxis umgesetzt. Etwa mit dem Schreiben eines eigenen Parsers.
|
||
</p>
|
||
|
||
<p class='mb-3'>
|
||
Schlussendlich gibt es dann einen “Rundumschlag” durch die gesamte Informatik. Erstellung eines Spieles (auf basis einer kleinen Grundlage), erstellung von WebApps mit Yesod, Parallelisierung und Nebenläufigkeit für rechenintensive Anwendungen inkl. synchronisation mittels STM.
|
||
</p>
|
||
|
||
<p class='mb-3'>
|
||
Optional gab es weitere Übungen zu dingen wie “verteiltes Rechnen”.
|
||
</p>
|
||
|
||
<p class='mb-3'>
|
||
Ziel hierbei war nicht, diese ganzen Themen in der Tiefe beizubringen, sondern aufzuzeigen, wie sie sehr schnell abstrakte Konstrukte, die ihnen ggf. 3 Semester später erst begegnen bugfrei benutzen können, da Haskell hier in sehr vielen Fällen einfach nur die “richtige” Lösung kompilieren lässt und alle gängigen Fallen schlicht ausschließt. Beispiel ist z.b. STM innerhalb von STM, Mischen von DB-Monade, Handler-Monade und Template-Engine in Yesod, Process () statt IO () in der Nutzung von CloudHaskell, etc. pp.
|
||
</p>
|
||
<h2 id='studentisches-feedback' class='inline-block mt-6 mb-4 text-4xl font-bold text-gray-700 border-b-2'>Studentisches Feedback</h2>
|
||
<p class='mb-3'>
|
||
Sehr gutes Feedback von den Studenten bekamen wir insbesondere für Übungen wie:
|
||
</p>
|
||
|
||
<p class='mb-3'>
|
||
<a href='https://gitea.dresselhaus.cloud/FFPiH/uebung2017_2/src/branch/master/src/Aufgabe2.hs' class='text-purple-600 hover:underline' target='_blank' rel='noopener'>Übung 2, Aufgabe 2</a>, weil hier durch “einfaches” umformen hin zu Abstraktionen und mit den Regeln dieser im ersten Fall die Laufzeit (vor Compileroptimierungen) von O(n²) auf O(0) ändert.
|
||
</p>
|
||
|
||
<p class='mb-3'>
|
||
<a href='https://gitea.dresselhaus.cloud/FFPiH/uebung2017-4' class='text-purple-600 hover:underline' target='_blank' rel='noopener'>Übung 4</a>, welche ein komplett fertigen (sehr rudimentären und simplen) Dungeon-Crawler bereitstellt, der “nur” 1-2 bugs hat und “wie ein echtes Projekt” erweitert werden muss. Diese Übung hat sich dann über 4 weitere Übungen gestreckt, wobei folgende Aufgaben gelöst werden müssen:
|
||
</p>
|
||
|
||
<ul class='my-3 ml-6 space-y-1 list-disc'>
|
||
|
||
<li>
|
||
Einarbeitung in QuickCheck zur Behebung eines Bugs im Test
|
||
</li>
|
||
|
||
<li>
|
||
Umschreiben von explizitem Argument-Passing hin zu Monad-Transformers mit stateful <a href='Haskell/Lenses' class='text-purple-600 mavenLinkBold hover:underline' data-wikilink-type='WikiLinkBranch'>lenses</a>
|
||
</li>
|
||
|
||
<li>
|
||
Continuation-Basierendes Event-System
|
||
</li>
|
||
|
||
<li>
|
||
Hinzufügen eines Parsers für Level, Items & deren Effekte und implementation dieser
|
||
</li>
|
||
|
||
<li>
|
||
Ändern des GUI-Parts von CLI auf 2D GL mittels gloss
|
||
</li>
|
||
|
||
<li>
|
||
Ändern von <code class='py-0.5 px-0.5 bg-gray-100'>StateT World</code> auf <code class='py-0.5 px-0.5 bg-gray-100'>RWST GameConfig Log World</code> und somit nutzen von individuellen Konfigurationen für z.b. Keybindings
|
||
</li>
|
||
|
||
</ul>
|
||
|
||
<!-- div class="flex items-center justify-center mt-2">
|
||
<ema:metadata>
|
||
<with var="template">
|
||
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|
||
href="${value:editBaseUrl}/${ema:note:source-path}">
|
||
<svg xmlns="http://www.w3.org/2000/svg" class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
|
||
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||
d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z" />
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
</article>
|
||
<div class='flex flex-col lg:flex-row lg:space-x-2'>
|
||
|
||
|
||
<div class='flex-1 p-4 mt-8 bg-gray-100 rounded'>
|
||
<header class='mb-2 text-xl font-semibold text-gray-500'>Links to this page</header>
|
||
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|
||
|
||
<li>
|
||
<a class='text-purple-600 mavenLinkBold hover:bg-purple-50' href='About/Work'>
|
||
Work-Experience
|
||
</a>
|
||
|
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<div class='mb-4 overflow-auto text-sm text-gray-500'>
|
||
|
||
<div class='pl-2 mt-2 border-l-2 border-purple-200 hover:border-purple-500'>
|
||
<div>Lecture “<a href='Haskell/FFPiH' class='text-gray-600 font-bold hover:bg-gray-50' data-wikilink-type='WikiLinkNormal'>Intermediate Functional Programming in Haskell</a>”</div>
|
||
</div>
|
||
|
||
</div>
|
||
|
||
</li>
|
||
|
||
<li>
|
||
<a class='text-purple-600 mavenLinkBold hover:bg-purple-50' href='Uni/Extracurricular'>
|
||
Studium generale / University-Life
|
||
</a>
|
||
|
||
<div class='mb-4 overflow-auto text-sm text-gray-500'>
|
||
|
||
<div class='pl-2 mt-2 border-l-2 border-purple-200 hover:border-purple-500'>
|
||
<div><a href='Haskell/FFPiH' class='text-gray-600 font-bold hover:bg-gray-50' data-wikilink-type='WikiLinkBranch'>more details on the lecture</a></div>
|
||
</div>
|
||
|
||
</div>
|
||
|
||
</li>
|
||
|
||
<li>
|
||
<a class='text-purple-600 mavenLinkBold hover:bg-purple-50' href='About/CV'>
|
||
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|
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|
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|
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|
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|
||
<div class='pl-2 mt-2 border-l-2 border-purple-200 hover:border-purple-500'>
|
||
<div><a href='Haskell/FFPiH' class='text-gray-600 font-bold hover:bg-gray-50' data-wikilink-type='WikiLinkBranch'>Lecture "Intermediate Functional Programming in Haskell"</a></div>
|
||
</div>
|
||
|
||
</div>
|
||
|
||
</li>
|
||
|
||
</ul>
|
||
</div>
|
||
|
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</div>
|
||
|
||
<section class='flex flex-wrap items-end justify-center my-4 space-x-2 space-y-2 font-mono text-sm'>
|
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|
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|
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|
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|
||
<path stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M7 7h.01M7 3h5c.512 0 1.024.195 1.414.586l7 7a2 2 0 010 2.828l-7 7a2 2 0 01-2.828 0l-7-7A1.994 1.994 0 013 12V7a4 4 0 014-4z'>
|
||
</path>
|
||
</svg>
|
||
</a>
|
||
</div>
|
||
<div>
|
||
<a href='-/tasks' title='View tasks'>
|
||
<svg xmlns='http://www.w3.org/2000/svg' class='w-6 h-6 hover:text-purple-700' fill='none' viewBox='0 0 24 24' stroke='currentColor'>
|
||
<path stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z'></path>
|
||
</svg>
|
||
</a>
|
||
</div>
|
||
</footer>
|
||
</div>
|
||
|
||
<div id='stork-search-container' class='hidden fixed w-screen h-screen inset-0 backdrop-filter backdrop-blur-sm'>
|
||
<div class='fixed w-screen h-screen inset-0' onclick='window.emanote.stork.toggleSearch()'></div>
|
||
|
||
<div class='container mx-auto p-10 mt-10'>
|
||
<div class='stork-wrapper-flat container mx-auto'>
|
||
<input id='stork-search-input' data-stork='emanote-search' class='stork-input' placeholder='Search (Ctrl+K) ...' />
|
||
<div data-stork='emanote-search-output' class='stork-output'></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</body>
|
||
|
||
</html>
|