Show HN: First Working Interpreter Hello everyone! I'm an undergrad in computer science in my last semester. I've tried my hand at a few interpreters the past year. This is my first one that I've actually got set up, with a working lexer and execution tactics. I've implemented the input and output prefixing primitives of the pi calculus. I intended to implement the replication and restriction primitives soon. I find process algebras very interesting. They seem to be an important area of research, to bring the computing ecosystem to a concurrent-first paradigm. This github project isn't much to look at currently; it's my first project of any substance. However, you might find the linked research papers interesting! Feel free to share criticisms, insights, or your favorite process algebra! https://ift.tt/akT1Vun October 16, 2022 at 10:59AM
Show HN: StreetComplete, an OpenStreetMap Editor for Humans StreetComplete is an OpenStreetMap[0] editor directed at people who want to contribute and want to do this using their smartphone, without learning how to edit things[1]. It is available as an Android application. It is intended to be used as one walks, with quests appearing as markers on the map. Selecting a marker allows one to answer a simple question. The answer will be added to the OpenStreetMap database, with app handling selecting objects for editing, transforming answer into OSM tags and making edits. OpenStreetMap account is needed to apply edits, but it is possible to start without it, make some edits and login/register later. Note: I am not the main author, but I am one of the active contributors. Github page is at https://ift.tt/2g8lasH and https://ift.tt/3nR9PzS shows what was recently released. [0]OpenStreetMap is a Wikipedia of maps, available on the open licence. This dataset is already used for many interestin...
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