{"id":51368894,"url":"https://github.com/clj-holmes/shape-shifter","last_synced_at":"2026-07-03T04:05:03.015Z","repository":{"id":45382429,"uuid":"413240839","full_name":"clj-holmes/shape-shifter","owner":"clj-holmes","description":"Transforms a string pattern into clojure spec.","archived":false,"fork":false,"pushed_at":"2025-07-09T18:53:55.000Z","size":38,"stargazers_count":6,"open_issues_count":2,"forks_count":1,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-07-10T03:47:11.986Z","etag":null,"topics":["clojure"],"latest_commit_sha":null,"homepage":"","language":"Clojure","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/clj-holmes.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2021-10-04T01:32:43.000Z","updated_at":"2025-07-09T18:53:59.000Z","dependencies_parsed_at":"2023-01-30T20:00:18.730Z","dependency_job_id":null,"html_url":"https://github.com/clj-holmes/shape-shifter","commit_stats":null,"previous_names":[],"tags_count":2,"template":false,"template_full_name":null,"purl":"pkg:github/clj-holmes/shape-shifter","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/clj-holmes%2Fshape-shifter","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/clj-holmes%2Fshape-shifter/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/clj-holmes%2Fshape-shifter/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/clj-holmes%2Fshape-shifter/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/clj-holmes","download_url":"https://codeload.github.com/clj-holmes/shape-shifter/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/clj-holmes%2Fshape-shifter/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":35071475,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-05-26T15:22:16.424Z","status":"online","status_checked_at":"2026-07-03T02:00:05.635Z","response_time":110,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"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":["clojure"],"created_at":"2026-07-03T04:05:02.385Z","updated_at":"2026-07-03T04:05:02.939Z","avatar_url":"https://github.com/clj-holmes.png","language":"Clojure","funding_links":[],"categories":[],"sub_categories":[],"readme":"# shape-shifter\n[![Clojars Project](https://img.shields.io/clojars/v/org.clojars.clj-holmes/shape-shifter.svg)](https://clojars.org/org.clojars.clj-holmes/shape-shifter)\n\nTransforms a string pattern into clojure spec.\n\n# Patterns\nInspired by [grape](https://github.com/bfontaine/grape/blob/master/doc/Patterns.md) pattern system.\n\nInspired by [grasp](https://github.com/borkdude/grasp/) spec utilization.\n\n## Wildcards\n| Wildcard | Definition |\n|----------|------------|\n| $        | matches one element of any kind |      \n| $fn      | matches one function element |\n| $macro-keyword | matches one macro keyword element|\n| $symbol | matches one symbol element |\n| $string | matches one string element |\n| $set    | matches one set element |\n| $char   | matches one char element |\n| $keyword| matches one keyword element |\n| $map    | matches one map element |\n| $number | matches one number element |\n| $list   | matches one list element |\n| $vector | matches one vector element |\n| $regex  | matches one regex element |\n\nIf an \u0026 is provided in the end of a wildcard it'll match 0 or n elements of the specified kind.\n\n# Examples\n\n## Simple form\n```clojure\n(require '[shape-shifter.core :refer [pattern-\u003espec]])\n(def spec (pattern-\u003espec \"($\u0026 read-string $\u0026)\"))\n(s/valid? spec '(-\u003e \"1\" read-string inc)) =\u003e true\n```\n\n## Nested forms\n```clojure\n(require '[shape-shifter.core :refer [pattern-\u003espec]])\n(def spec (pattern-\u003espec \"(-\u003e $string read-string (+ $number))\"))\n(s/valid? spec '(-\u003e \"1\" read-string (+ 10))) =\u003e true\n```\n## Expand patterns\n```clojure\n(require '[shape-shifter.core :refer [pattern-\u003espec *wildcards*]])\n\n(def spec (binding [*wildcards* (merge *wildcards* {\"$banana\" #{\"banana\"}})]\n                 (pattern-\u003espec \"$banana\")))\n(s/valid? spec \"banana\")\n```\n## Regex evaluation\n```clojure\n(require '[shape-shifter.core :refer [pattern-\u003espec *wildcards*]])\n\n(def spec (binding [*config* (assoc *config* :interpret-regex? true)]\n                 (pattern-\u003espec \"#\\\"bana.*\\\" \")))\n(s/valid? spec \"banana\")\n```\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fclj-holmes%2Fshape-shifter","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fclj-holmes%2Fshape-shifter","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fclj-holmes%2Fshape-shifter/lists"}