{"id":17987713,"url":"https://github.com/diekmann/isabelle-hello-world","last_synced_at":"2025-04-04T03:14:28.154Z","repository":{"id":143383738,"uuid":"100045728","full_name":"diekmann/Isabelle-Hello-World","owner":"diekmann","description":"Hello World in Isabelle, compiled to Haskell","archived":false,"fork":false,"pushed_at":"2021-10-08T18:34:12.000Z","size":59,"stargazers_count":2,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"main","last_synced_at":"2025-02-09T14:45:54.777Z","etag":null,"topics":["functional-programming","haskell","isabelle-hol"],"latest_commit_sha":null,"homepage":null,"language":"Isabelle","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/diekmann.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2017-08-11T15:27:19.000Z","updated_at":"2022-07-20T13:15:39.000Z","dependencies_parsed_at":null,"dependency_job_id":"34a454df-b599-4ef1-846b-eab23364f9e1","html_url":"https://github.com/diekmann/Isabelle-Hello-World","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/diekmann%2FIsabelle-Hello-World","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/diekmann%2FIsabelle-Hello-World/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/diekmann%2FIsabelle-Hello-World/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/diekmann%2FIsabelle-Hello-World/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/diekmann","download_url":"https://codeload.github.com/diekmann/Isabelle-Hello-World/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":247112771,"owners_count":20885606,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["functional-programming","haskell","isabelle-hol"],"created_at":"2024-10-29T19:09:27.442Z","updated_at":"2025-04-04T03:14:28.131Z","avatar_url":"https://github.com/diekmann.png","language":"Isabelle","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Isabelle-Hello-World\nHello World in Isabelle, compiled to Haskell.\n\n\n# Example\n\nIsabelle\n```Isabelle\ndefinition main :: \"unit io\" where\n  \"main ≡ do {\n               _ ← println (STR ''Hello World! What is your name?'');\n               name ← getLine;\n               println (STR ''Hello, '' + name + STR ''!'')\n             }\"\n```\n\ncompiles to\n\n```Haskell\nmain :: Prelude.IO ();\nmain =\n  (StdIO.println\n    \"Hello World! What is your name?\") \u003e\u003e= (\\ _ -\u003e\n     StdIO.getLine \u003e\u003e= (\\ name -\u003e StdIO.println ((\"Hello, \" ++ name) ++ \"!\")));\n```\n\nexecutes\n\n```\n$ runhaskell Main.hs\nHello World! What is your name?\nCorny\nHello, Corny!\n```\n\n\n# Contributing\n * Keep it simple! I want simple, understandable, well-documented examples.\n * Don't rewrite simple examples to a super generic, highly abstract meta model.\n   Feel free to push the super generic, highly abstract meta model in a separate file and explain *how* and *why* the\n   base model needs to be extended.\n\n# Things I'd like to see\n * Socket server.\n * String handling.\n * `println \"foo\" \u003e\u003e println \"bar\"` and a *proof* that I got `foo\\nbar\\n` on my STDOUT [[done]](HelloWorld_Proof.thy).\n * `now \u003e\u003e= \\time -\u003e println $ \"the time is now \" ++ time`.\n * Read a number from STDIN, increment the number and output it.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdiekmann%2Fisabelle-hello-world","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fdiekmann%2Fisabelle-hello-world","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdiekmann%2Fisabelle-hello-world/lists"}