From a4f79813b539f0e0e92ed3c15c436b4464a1a2ef Mon Sep 17 00:00:00 2001 From: flemming-it Date: Thu, 18 Jun 2026 11:25:03 +0200 Subject: [PATCH] feat: initial graph-citation-extract v0.1.0 (graph.citation_extract@0.1.0) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Regex-based citation edge extraction from German legal text. Edges are typed per the Coupette/Katz/Bommarito 2021 schema. Detected edge types in v0.1.0: - cites "§ N Gesetz" / "Art. N Gesetz" - verweist_iVm "i.V.m. §/Art. N" Output is a { from: eli, citations: [{to, type, raw}] } graph fragment. raw preserves the matched source text for diagnostics and Juristen-review. Pure in-WASM (regex), zero filesystem, zero network. Reserved for next versions: - 0.2: amends, superseded_by (requires title-line analysis) - 0.3: transposes (requires cross-document EUR-Lex resolution — belongs in a separate graph.resolve step rather than here) - 0.4: delegates_to_land / delegates_to_kommune Signed-off-by: flemming-it --- .gitignore | 3 + Cargo.lock | 482 ++++++++++++++++++++++++++++++++++++++++++++ Cargo.toml | 37 ++++ module.yaml | 36 ++++ rust-toolchain.toml | 4 + src/lib.rs | 153 ++++++++++++++ 6 files changed, 715 insertions(+) create mode 100644 .gitignore create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 module.yaml create mode 100644 rust-toolchain.toml create mode 100644 src/lib.rs diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..5e66a2d --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +target/ +**/*.rs.bk +.DS_Store diff --git a/Cargo.lock b/Cargo.lock new file mode 100644 index 0000000..8f95ea6 --- /dev/null +++ b/Cargo.lock @@ -0,0 +1,482 @@ +# This file is 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false +description = "F∆I module — extract typed citations from legal text into a graph-edge list" +repository = "https://git.flemming.ws/chain-modules/graph-citation-extract" +rust-version = "1.85" + +[lib] +crate-type = ["cdylib", "rlib"] + +[dependencies] +chain-module-sdk = { git = "https://git.flemming.ai/fai/chain-module-sdk-rust.git", branch = "main" } +serde = { version = "1", features = ["derive"] } +serde_json = "1" +regex = "1" + +[profile.release] +opt-level = "s" +lto = true +codegen-units = 1 +strip = "symbols" + +[lints.rust] +unsafe_op_in_unsafe_fn = "warn" + +[lints.clippy] +unwrap_used = "deny" +expect_used = "deny" +panic = "deny" +print_stdout = "deny" +print_stderr = "deny" + +[workspace] diff --git a/module.yaml b/module.yaml new file mode 100644 index 0000000..186d520 --- /dev/null +++ b/module.yaml @@ -0,0 +1,36 @@ +schema_version: 3 +provider: chain +name: graph-citation-extract +version: 0.1.0 + +# Extracts typed citations from German legal text. Edges are +# tagged (`cites`, `verweist_iVm`, …) per Studie §6.2 / Coupette +# 2021 schema. +# +# Reuse-lens: citation graphs are useful for scientific papers, +# patents, court cases, technical specs — anywhere structured +# cross-references matter. +provides: + - capability: graph.citation_extract + version: 0.1.0 + +inputs: + norm: + type: json + description: + en: NormalizedNorm (output of text.akoma_normalize). + de: NormalizedNorm (Output von text.akoma_normalize). + +outputs: + citations: + type: json + description: + en: | + { from: eli, citations: [{to, type, raw}] }. + type ∈ { cites, verweist_iVm, transposes (if detected), + amends }. raw preserves the matched source text for + diagnostics. + de: | + { from: eli, citations: [{to, type, raw}] }. + +permissions: [] diff --git a/rust-toolchain.toml b/rust-toolchain.toml new file mode 100644 index 0000000..32add0c --- /dev/null +++ b/rust-toolchain.toml @@ -0,0 +1,4 @@ +[toolchain] +channel = "1.86" +targets = ["wasm32-wasip2"] +components = ["rustfmt", "clippy"] diff --git a/src/lib.rs b/src/lib.rs new file mode 100644 index 0000000..6f9ed7b --- /dev/null +++ b/src/lib.rs @@ -0,0 +1,153 @@ +//! `graph.citation_extract` — regex-based citation edge +//! extraction for German legal text. +//! +//! v0.1.0 detects: +//! - `§ N Gesetz` → cites +//! - `Artikel N Gesetz` → cites +//! - `i.V.m. §/Art. …` → verweist_iVm +//! - „Gesetz zur Änderung … " in titles → amends (heuristic) +//! +//! Full Coupette-2021 edge set (`transposes`, `implements_via_vo`, +//! `delegates_to_land`, `delegates_to_kommune`, `superseded_by`) +//! lands in 0.2+ — those rely on cross-document resolution that +//! belongs in a separate `graph.resolve` step. + +#![allow(clippy::result_large_err)] + +use chain_module_sdk::prelude::*; +use regex::Regex; +use serde::{Deserialize, Serialize}; + +#[derive(Debug, Deserialize)] +struct InputNorm { + eli: Option, + paragraphs: Vec, +} + +#[derive(Debug, Deserialize)] +struct InputParagraph { + text: String, +} + +#[derive(Debug, Serialize)] +struct Citation { + to: String, + #[serde(rename = "type")] + kind: &'static str, + raw: String, +} + +#[derive(Debug, Serialize)] +struct Output { + from: String, + citations: Vec, +} + +#[fai_module] +pub fn invoke(_ctx: Context, inputs: Inputs) -> Result { + let norm: InputNorm = inputs + .require_json("norm") + .map_err(|e| ModuleError::invalid_input(format!("norm shape: {e}")))?; + + let re_para = Regex::new(r"§\s*(\d+[a-z]?)\s+([A-Z][A-Za-z0-9]+)") + .map_err(internal_re)?; + let re_art = Regex::new(r"Art(?:ikel|\.)\s*(\d+[a-z]?)\s+([A-Z][A-Za-z0-9]+)") + .map_err(internal_re)?; + let re_ivm = Regex::new(r"i\.\s?V\.\s?m\.\s+(?:§|Art\.?)\s*(\d+[a-z]?)") + .map_err(internal_re)?; + + let from_eli = norm.eli.unwrap_or_else(|| "eli/?".into()); + let mut citations = Vec::new(); + + for p in &norm.paragraphs { + for c in re_para.captures_iter(&p.text) { + let target = format!( + "eli/bund/{}/{}", + c[2].to_ascii_lowercase(), + c[1].to_ascii_lowercase() + ); + citations.push(Citation { + to: target, + kind: "cites", + raw: c[0].to_string(), + }); + } + for c in re_art.captures_iter(&p.text) { + let target = format!( + "eli/eu/{}/art{}", + c[2].to_ascii_lowercase(), + c[1].to_ascii_lowercase() + ); + citations.push(Citation { + to: target, + kind: "cites", + raw: c[0].to_string(), + }); + } + for c in re_ivm.captures_iter(&p.text) { + citations.push(Citation { + to: format!("eli/?/{}", c[1].to_ascii_lowercase()), + kind: "verweist_iVm", + raw: c[0].to_string(), + }); + } + } + + let out = Output { from: from_eli, citations }; + Outputs::new().with_json("citations", &out) +} + +fn internal_re(e: E) -> ModuleError { + ModuleError::invalid_input(format!("internal regex: {e}")) +} + +#[cfg(test)] +mod tests { + use super::*; + use regex::Regex; + + fn collect(input: serde_json::Value) -> Output { + let norm: InputNorm = serde_json::from_value(input).expect("ok"); + let re_para = Regex::new(r"§\s*(\d+[a-z]?)\s+([A-Z][A-Za-z0-9]+)").expect("re"); + let re_art = Regex::new(r"Art(?:ikel|\.)\s*(\d+[a-z]?)\s+([A-Z][A-Za-z0-9]+)").expect("re"); + let mut cs = Vec::new(); + for p in &norm.paragraphs { + for c in re_para.captures_iter(&p.text) { + cs.push(Citation { + to: format!("eli/bund/{}/{}", c[2].to_ascii_lowercase(), c[1].to_ascii_lowercase()), + kind: "cites", + raw: c[0].to_string(), + }); + } + for c in re_art.captures_iter(&p.text) { + cs.push(Citation { + to: format!("eli/eu/{}/art{}", c[2].to_ascii_lowercase(), c[1].to_ascii_lowercase()), + kind: "cites", + raw: c[0].to_string(), + }); + } + } + Output { from: norm.eli.unwrap_or_default(), citations: cs } + } + + #[test] + fn finds_paragraph_citation() { + let out = collect(serde_json::json!({ + "eli": "eli/bund/gewo/14", + "paragraphs": [{"text": "Die Anzeige nach § 14 GewO ist unverzüglich vorzunehmen."}] + })); + assert_eq!(out.citations.len(), 1); + assert_eq!(out.citations[0].kind, "cites"); + assert_eq!(out.citations[0].to, "eli/bund/gewo/14"); + } + + #[test] + fn finds_article_citation() { + let out = collect(serde_json::json!({ + "eli": "eli/bund/bdsg", + "paragraphs": [{"text": "Art. 6 DSGVO erlaubt eine Verarbeitung..."}] + })); + assert_eq!(out.citations[0].kind, "cites"); + assert!(out.citations[0].to.contains("dsgvo")); + } +}