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| """Parsing and assembling CKE-style task texts; static (code-only) validators for LLM outputs. | |
| Everything that can be checked mechanically is checked here, not by the LLM: headings, option shuffles and | |
| answer keys, source labels, verbatim Wikipedia excerpts, rubric formats, answer leaks in 'identify' tasks. | |
| """ | |
| import random | |
| import re | |
| from common import stable_int, stems | |
| HEADER_RE = re.compile(r"^Zadanie (\d+)\. \(0[–-](\d+)\)\s*$") | |
| SRC_LABEL_RE = re.compile(r"^Tekst (\d)\.\s*(.*)$") | |
| OPT_RE = re.compile(r"^([A-F])\.\s+(.*)$") | |
| STMT_RE = re.compile(r"^([1-6])\.\s+(.*)$") | |
| ELEM_RE = re.compile(r"^([a-e])\)\s*(.*)$") | |
| IDENTIFY_RE = re.compile(r"(podaj|wpisz|napisz|wymień)\s+(nazw|imię|imiona|nazwisk|dat|rok|termin|pojęci)|" | |
| r"rozpozn|zidentyfikuj|ustal,?\s+(kto|jak)", re.I) | |
| SYNTH = "opracowanie syntetyczne" | |
| ANAPHORA = re.compile(r"^(?:Z tego|Dlatego|Ponadto|Również|Jednak|Wówczas|Następnie|Tam|Ten|Ta|To|Te|Tego|Ci|" | |
| r"Jego|Jej|Ich|On|Ona|Oni|Natomiast|Zaś|Poza tym|W związku z tym|W tym)\b") | |
| FAKE_LABEL = re.compile(r"Tekst \d|Wikipedi|fragment artykułu", re.I) | |
| WIKI_LABEL = "Tekst {n}. Fragment artykułu „{title}” (pl.wikipedia.org, CC BY-SA 4.0)" | |
| TF_INSTR = "Oceń prawdziwość zdań. Zaznacz P, jeśli zdanie jest prawdziwe, albo F – jeśli jest fałszywe." | |
| TF_INSTR_SRC = ("Na podstawie tekstu i własnej wiedzy oceń prawdziwość zdań. Zaznacz P, jeśli zdanie jest " | |
| "prawdziwe, albo F – jeśli jest fałszywe.") | |
| MCQ_RUBRIC = "1 pkt – za poprawną odpowiedź.\n0 pkt – odpowiedź błędna albo brak odpowiedzi." | |
| TF_RUBRIC = "1 pkt – za trzy poprawne oceny.\n0 pkt – odpowiedź niepełna lub błędna albo brak odpowiedzi." | |
| ESSAY_TAIL = ("Wypracowanie powinno zawierać stanowisko wobec tezy zawartej w temacie, jego uzasadnienie " | |
| "(argumentację popartą wiedzą historyczną) oraz wnioski. Wypowiedź powinna liczyć co najmniej 300 słów.") | |
| # ---------------------------------------------------------------- parsing originals | |
| def parse(r): | |
| """Split a task text into parts: header, sources [(n, label, text)], body lines, options, statements, essay parts.""" | |
| lines = r["question"].split("\n") | |
| out = {"header": lines[0], "sources": [], "body": [], "options": [], "statements": [], "instr": None, | |
| "thesis": None, "elements": [], "pre": [], "tail": []} | |
| i = 1 | |
| while i < len(lines): | |
| m = SRC_LABEL_RE.match(lines[i].strip()) | |
| if m and (SYNTH in lines[i] or "Fragment" in lines[i] or m.group(2).startswith("(")): | |
| j, txt = i + 1, [] | |
| while j < len(lines) and lines[j].strip() and not SRC_LABEL_RE.match(lines[j].strip()): | |
| txt.append(lines[j]) | |
| j += 1 | |
| if not any(not l.strip() for l in lines[j:j + 30]) and len(txt) >= 1: | |
| break # no blank line after the source: it is a single line | |
| out["sources"].append((int(m.group(1)), lines[i].strip(), "\n".join(txt).strip())) | |
| i = j | |
| continue | |
| out["body"].append(lines[i]) | |
| i += 1 | |
| body = [l for l in out["body"]] | |
| if r["task_type"] == "closed_choice": | |
| out["options"] = [(m.group(1), m.group(2)) for m in (OPT_RE.match(l.strip()) for l in body) if m] | |
| out["pre"] = [l for l in body if not OPT_RE.match(l.strip()) and l.strip()] | |
| elif r["task_type"] == "true_false": | |
| out["statements"] = [(int(m.group(1)), m.group(2)) for m in (STMT_RE.match(l.strip()) for l in body) if m] | |
| rest = [l for l in body if not STMT_RE.match(l.strip()) and l.strip()] | |
| out["instr"] = next((l for l in rest if "Zaznacz P" in l or "prawdziw" in l), None) | |
| out["pre"] = [l for l in rest if l != out["instr"]] | |
| elif r["task_type"] == "essay": | |
| k = next((n for n, l in enumerate(body) if l.strip().startswith("W argumentacji")), None) | |
| start = 1 if body and body[0].strip().startswith("Napisz wypracowanie") else 0 | |
| out["pre"] = body[:start] | |
| out["thesis"] = " ".join(l.strip() for l in body[start:k] if l.strip()) if k is not None else None | |
| out["arg_line"] = body[k].strip() if k is not None else None | |
| rest = body[k + 1:] if k is not None else [] | |
| out["elements"] = [l.strip() for l in rest if ELEM_RE.match(l.strip())] | |
| out["tail"] = [l for l in rest if l.strip() and not ELEM_RE.match(l.strip())] | |
| m = re.search(r"(?<![\w(])a\)", out["arg_line"] or "") | |
| if m and not out["elements"]: # elements inline: 'W argumentacji uwzględnij: a) …, b) …' | |
| parts = re.split(r"\s*[,;]?\s*(?<![\w(])([a-e])\)\s*", out["arg_line"][m.start():]) | |
| out["elements"] = [f"{parts[i]}) {parts[i + 1].strip().rstrip(',;.')}" for i in range(1, len(parts) - 1, 2)] | |
| out["arg_line"] = out["arg_line"][:m.start()].strip() | |
| else: | |
| out["pre"] = [l for l in body if l.strip()] | |
| return out | |
| def tf_truth(key): | |
| return {int(n): v == "P" for n, v in re.findall(r"([1-6])\.\s*([PF])", key)} | |
| def is_identify(r, text=None): | |
| return r.get("task_type") == "open_identify" or bool(IDENTIFY_RE.search(text or r["question"])) | |
| # ---------------------------------------------------------------- assembling | |
| def source_block(srcs): | |
| """srcs: [{'title', 'fragment'}] -> 'Tekst 1. Fragment artykułu …\\n<fragment>\\n\\n'.""" | |
| out = [] | |
| for n, s in enumerate(srcs, 1): | |
| out.append(WIKI_LABEL.format(n=n, title=s["title"]) + "\n" + s["fragment"].strip()) | |
| return ("\n\n".join(out) + "\n\n") if out else "" | |
| def header(n, p): | |
| return f"Zadanie {n}. (0–{p})" | |
| def shuffled(seq, seed, move_from=None): | |
| """Deterministic permutation; if move_from is an index, it is guaranteed to move (when len > 1).""" | |
| rng = random.Random(seed) | |
| idx = list(range(len(seq))) | |
| for _ in range(50): | |
| rng.shuffle(idx) | |
| if len(seq) < 2 or (idx != list(range(len(seq))) and (move_from is None or idx.index(move_from) != move_from)): | |
| break | |
| return idx | |
| def assemble_mcq(n, polecenie, trzon, options, correct_text, seed, srcs=(), move=True): | |
| """options: list of option texts (any order); returns (question, key_letter). | |
| move=True (variants): the correct option always changes its letter; move=False (new tasks): uniform shuffle.""" | |
| corr = options.index(correct_text) | |
| perm = shuffled(options, seed, move_from=corr if move else None) | |
| letters = "ABCDEF" | |
| opts = [options[i] for i in perm] | |
| key = letters[opts.index(correct_text)] | |
| body = "\n".join(x for x in [polecenie.strip(), trzon.strip()] if x) | |
| q = header(n, 1) + "\n" + source_block(srcs) + body + "\n" + "\n".join(f"{letters[i]}. {o}" for i, o in enumerate(opts)) | |
| return q, key | |
| def assemble_tf(n, wstep, statements, seed, srcs=()): | |
| """statements: [(text, truth_bool)] -> (question, key).""" | |
| perm = shuffled(statements, seed) | |
| st = [statements[i] for i in perm] | |
| q = header(n, 1) + "\n" + (wstep.strip() + "\n\n" if wstep and wstep.strip() else "") | |
| q += source_block(srcs) + (TF_INSTR_SRC if srcs else TF_INSTR) + "\n" | |
| q += "\n".join(f"{i + 1}. {t.strip()}" for i, (t, _) in enumerate(st)) | |
| key = ", ".join(f"{i + 1}. {'P' if v else 'F'}" for i, (_, v) in enumerate(st)) | |
| return q, key | |
| def assemble_open(n, p, polecenie, srcs=()): | |
| return header(n, p) + "\n" + source_block(srcs) + polecenie.strip() | |
| def assemble_essay(n, temat, elements, tail=ESSAY_TAIL, arg_line="W argumentacji uwzględnij:"): | |
| els = [e if ELEM_RE.match(e.strip()) else f"{'abc'[i]}) {e}" for i, e in enumerate(elements)] | |
| return "\n".join([header(n, 15), "Napisz wypracowanie na temat:", temat.strip(), arg_line] + els + [tail]) | |
| # ---------------------------------------------------------------- static validators | |
| def rubric_error(zasady, p): | |
| z = zasady or "" | |
| if not re.search(rf"(?m)^{p} pkt – ", z): | |
| return f"zasady oceniania muszą zawierać linię zaczynającą się od „{p} pkt – ”" | |
| if p == 2 and not re.search(r"(?m)^1 pkt – ", z): | |
| return "zasady oceniania za 2 pkt muszą zawierać także linię „1 pkt – …”" | |
| if not re.search(r"(?m)^0 pkt – ", z): | |
| return "zasady oceniania muszą kończyć się linią „0 pkt – odpowiedź niepełna lub błędna albo brak odpowiedzi.”" | |
| return None | |
| def answer_core(answer): | |
| """The answer itself (not the explanation): text before the first sentence end / dash / parenthesis.""" | |
| a = re.sub(r"^(?:np\.|Przykładow\w+ odpowied\w+:?|Odpowiedź:?|Poprawna odpowiedź:?)\s*", "", | |
| (answer or "").strip(), flags=re.I) | |
| a = re.split(r"(?<=[^A-ZĄĆĘŁŃÓŚŹŻ])\.\s|;|\s[–—-]\s|\(|\n|:", a, maxsplit=1)[0] | |
| return a[:90] | |
| def leak_error(fragment, answer): | |
| """'podaj nazwę/rozpoznaj' tasks: most proper-noun words of the answer occur in the excerpt.""" | |
| names = re.findall(r"\b[A-ZĄĆĘŁŃÓŚŹŻ][\wąćęłńóśźż-]{3,}", answer_core(answer)) | |
| names = [n for n in names if n.lower() not in {"został", "została", "było", "była", "jest", "chodzi", "jego"}] | |
| if not names: | |
| return None | |
| fst = set(stems(fragment, 5)) | |
| hits = [n for n in names if stems(n, 5) and stems(n, 5)[0] in fst] | |
| if len(hits) / len(names) >= 0.6: | |
| return (f"fragment zdradza odpowiedź ({', '.join(hits[:3])}) – zastąp te słowa w cytacie opuszczeniem „[…]” " | |
| f"albo wybierz inny fragment") | |
| return None | |
| def option_leak(fragment, correct, distractors): | |
| """Closed task: the fragment contains (nearly) all content words of the correct option but not of distractors.""" | |
| def cw(s): | |
| return {x for x in stems(s, 6) if len(x) >= 5 and not x.isdigit()} | |
| fr = set(stems(fragment, 6)) | |
| c = cw(correct) | |
| if not c or len(c & fr) / len(c) < 0.75: | |
| return None | |
| if any(cw(d) and len(cw(d) & fr) / len(cw(d)) >= 0.75 for d in distractors): | |
| return None | |
| return ("fragment źródłowy zawiera wprost poprawną odpowiedź – wybierz fragment, który jej nie podaje, albo " | |
| "zastąp ją w cytacie opuszczeniem „[…]”") | |
| def check_sources(w, obj, passages, keys=("zrodlo", "zrodlo2"), min_len=100, max_len=700, answer=None): | |
| """Validate LLM-chosen excerpts; returns (error|None, [{'title','url','snap','date_modified','fragment','pid'}]).""" | |
| out = [] | |
| for k in keys: | |
| s = obj.get(k) | |
| if not s: | |
| continue | |
| if not isinstance(s, dict) or "id" not in s or "fragment" not in s: | |
| return f"pole „{k}” musi mieć postać {{\"id\": \"P1\", \"fragment\": \"…\"}} albo null", None | |
| pid_idx = re.sub(r"\D", "", str(s["id"])) | |
| if not pid_idx or not (1 <= int(pid_idx) <= len(passages)): | |
| return f"„{k}.id” musi wskazywać fragment z MATERIAŁÓW (P1–P{len(passages)})", None | |
| p = passages[int(pid_idx) - 1] | |
| frag = (s["fragment"] or "").strip() | |
| lim = max_len if k == "zrodlo" and not obj.get("zrodlo2") else min(max_len, 450) | |
| if not (min_len <= len(frag) <= lim): | |
| return f"„{k}.fragment” ma {len(frag)} znaków; wymagane {min_len}–{lim} znaków", None | |
| if SYNTH in frag or frag.startswith("Tekst "): | |
| return f"„{k}.fragment” ma zawierać wyłącznie cytat z artykułu, bez podpisu", None | |
| if ANAPHORA.match(frag): | |
| return (f"„{k}.fragment” zaczyna się od odwołania do wcześniejszego tekstu („{frag.split()[0]} …”) – " | |
| f"zacznij cytat od zdania zrozumiałego bez kontekstu"), None | |
| ok, msg, _ = w.check_excerpt(frag, [p["pid"]]) | |
| if not ok: | |
| return (f"„{k}.fragment” musi być DOSŁOWNYM cytatem z [{s['id']}] ({msg}); skopiuj zdania bez zmian, " | |
| f"opuszczenia oznacz „[…]”"), None | |
| if answer: | |
| e = leak_error(frag, answer) | |
| if e: | |
| return e, None | |
| out.append({"title": p["title"], "url": p["url"], "snap": p["snap"], "date_modified": p["date_modified"], | |
| "fragment": frag, "pid": p["pid"]}) | |
| return None, out | |
| def verified_quotes(w, items, passages, max_len=260): | |
| """Keep only quotes that are verbatim in the referenced passage's article; returns list with refs.""" | |
| good = [] | |
| for it in items or []: | |
| if not isinstance(it, dict): | |
| continue | |
| idx = re.sub(r"\D", "", str(it.get("id", ""))) | |
| q = (it.get("cytat") or "").strip() | |
| if not idx or not q or not (1 <= int(idx) <= len(passages)) or len(q) > max_len: | |
| continue | |
| p = passages[int(idx) - 1] | |
| ok, _, _ = w.check_excerpt(q, [p["pid"]]) | |
| if ok: | |
| good.append({**{k: v for k, v in it.items() if k != "id"}, "cytat": q, "title": p["title"], | |
| "url": p["url"], "snap": p["snap"]}) | |
| return good | |
| def wiki_check_record(w, parent_id, wc, passages): | |
| """Normalise the LLM's fact-check of the original; conflicts keep only verbatim-verified evidence.""" | |
| wc = wc if isinstance(wc, dict) else {} | |
| status = wc.get("status") if wc.get("status") in ("zgodne", "konflikt", "brak_danych") else "brak_danych" | |
| ev = verified_quotes(w, wc.get("dowody"), passages) | |
| rec = {"id": parent_id, "status": status, "note": (wc.get("uwagi") or "").strip()[:600], "evidence": ev, | |
| "evidence_verified": bool(ev)} | |
| return rec | |
| def diff_ratio(a, b): | |
| """Share of word 3-grams of b not present in a (0 = identical wording).""" | |
| def grams(s): | |
| t = re.findall(r"\w+", s.lower()) | |
| return {" ".join(t[i:i + 3]) for i in range(max(1, len(t) - 2))} | |
| ga, gb = grams(a), grams(b) | |
| return 1 - len(ga & gb) / max(1, len(gb)) | |