080_blog/00130_Calculator-on-Parsec-and-GTK-(Haskell)/index.md


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Simple Calculator on Parsec and GTK
===================================

    May 3, 2018

![](/DATA/haskell/calc/calc.png){.img-fluid .border}

Today I implemented this simple stupid calulator as a side effect of playing 
around with parsec [1] and haskells gtk3 [2] bindings, as well as glade [3] -
an interactive user interface designer.

Source Files
------------

* [calc.hs](/DATA/haskell/calc/calc.hs)
* [calc.glade](/DATA/haskell/calc/calc.glade)

calc.hs Listing
---------------

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ {.haskell .numberLines}
{BEGIN:SOURCE}
./DATA/haskell/calc/calc.hs
{END:SOURCE}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    [1] https://hackage.haskell.org/package/parsec
    [2] https://hackage.haskell.org/package/gtk3
    [3] https://glade.gnome.org/