{"adoption": {"forks": 304, "observed_at": "2026-08-28T04:07:25.666577+00:00", "stars": 2851}, "canonical_url": "https://ross.abutalabs.com/products/mpc", "card": {"archived": false, "artifact_type": "library", "description": "A Parser Combinator library for C", "domain": ["parsers", "programming-languages", "developer-tools"], "enriched": true, "function": ["parser"], "health_score": 42, "homepage": null, "language": "C", "license": "NOASSERTION", "license_family": "other", "maturity": "stable", "member_repos": ["orangeduck/mpc"], "name": "orangeduck/mpc", "platform": ["cross-platform", "c"], "pushed_at": "2025-08-10T23:14:43+00:00", "repo": "orangeduck/mpc", "stars": 2851, "tags": ["parser-combinators", "dsl", "grammar", "recursive-descent", "ansi-c", "single-file"], "topics": [], "urls": [], "use_cases": ["build a new programming language in C", "parse an existing programming language", "define and parse a custom data format", "embed a domain-specific language in a C application", "generate parsers from regular expressions or grammar definitions"], "what_it_is": "mpc is a lightweight parser combinator library for C, shipped as a single ANSI C source file. It supports type-generic parsers, predictive recursive descent parsing, automatic error message generation, and regex/grammar parser generators.", "when_to_avoid": ["you need high-performance or highly optimized parsing for large inputs", "you prefer parser generator tools like yacc, bison, or ANTLR", "you are working outside C"], "when_to_choose": ["you need a small, dependency-free parser library in plain C", "you want quick parser construction with combinators instead of writing a lexer/parser by hand", "you want automatic error message generation for your grammar"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/mpc", "repo": "orangeduck/mpc", "role": "main", "score": 39}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T07:36:54.117531+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "3a6ff2df495e9600fc0261b4a7b2a5002fb8f18f28ac3c56f7807dbce04f426b", "fetched_at": "2026-08-28T04:07:25.666577+00:00", "kind": "readme", "missing": false, "url": "https://github.com/orangeduck/mpc"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T07:36:54.117531+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "3a6ff2df495e9600fc0261b4a7b2a5002fb8f18f28ac3c56f7807dbce04f426b", "fetched_at": "2026-08-28T04:07:25.666577+00:00", "kind": "readme", "missing": false, "url": "https://github.com/orangeduck/mpc"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T07:36:54.117531+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "3a6ff2df495e9600fc0261b4a7b2a5002fb8f18f28ac3c56f7807dbce04f426b", "fetched_at": "2026-08-28T04:07:25.666577+00:00", "kind": "readme", "missing": false, "url": "https://github.com/orangeduck/mpc"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T07:36:54.117531+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "3a6ff2df495e9600fc0261b4a7b2a5002fb8f18f28ac3c56f7807dbce04f426b", "fetched_at": "2026-08-28T04:07:25.666577+00:00", "kind": "readme", "missing": false, "url": "https://github.com/orangeduck/mpc"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T07:36:54.117531+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "3a6ff2df495e9600fc0261b4a7b2a5002fb8f18f28ac3c56f7807dbce04f426b", "fetched_at": "2026-08-28T04:07:25.666577+00:00", "kind": "readme", "missing": false, "url": "https://github.com/orangeduck/mpc"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T07:36:54.117531+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "3a6ff2df495e9600fc0261b4a7b2a5002fb8f18f28ac3c56f7807dbce04f426b", "fetched_at": "2026-08-28T04:07:25.666577+00:00", "kind": "readme", "missing": false, "url": "https://github.com/orangeduck/mpc"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:07:25.666577+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T07:36:54.117531+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "3a6ff2df495e9600fc0261b4a7b2a5002fb8f18f28ac3c56f7807dbce04f426b", "fetched_at": "2026-08-28T04:07:25.666577+00:00", "kind": "readme", "missing": false, "url": "https://github.com/orangeduck/mpc"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T07:36:54.117531+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "3a6ff2df495e9600fc0261b4a7b2a5002fb8f18f28ac3c56f7807dbce04f426b", "fetched_at": "2026-08-28T04:07:25.666577+00:00", "kind": "readme", "missing": false, "url": "https://github.com/orangeduck/mpc"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T07:36:54.117531+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "3a6ff2df495e9600fc0261b4a7b2a5002fb8f18f28ac3c56f7807dbce04f426b", "fetched_at": "2026-08-28T04:07:25.666577+00:00", "kind": "readme", "missing": false, "url": "https://github.com/orangeduck/mpc"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T07:36:54.117531+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "3a6ff2df495e9600fc0261b4a7b2a5002fb8f18f28ac3c56f7807dbce04f426b", "fetched_at": "2026-08-28T04:07:25.666577+00:00", "kind": "readme", "missing": false, "url": "https://github.com/orangeduck/mpc"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 36, "longevity": 100, "rhythm": 8}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_license"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 4724, "days_push": 388, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 39, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}