File size: 3,048 Bytes
f0e27bf | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | from __future__ import annotations
import re
FINAL_LINE_RE = re.compile(r"(?mi)^\s*FINAL:\s*(.+?)\s*$")
FINAL_MARKER_RE = re.compile(r"(?i)FINAL:\s*([^\n<]+)")
FINAL_ANSWER_LINE_RE = re.compile(
r"(?mi)^\s*(?:\**\s*)?(?:final answer|the final answer|answer)\s*(?:is|=|:)\s*([^\n]+)$"
)
BOXED_RE = re.compile(r"\\boxed\{([^{}]+)\}", flags=re.IGNORECASE)
NUMERIC_RE = re.compile(r"-?\d+(?:\.\d+)?")
def normalize(text: str) -> str:
text = text.strip()
text = re.sub(r"\s+", " ", text)
return text.casefold()
def clean_answer_text(text: str) -> str:
text = re.sub(r"</?answer>", " ", text, flags=re.IGNORECASE)
text = re.sub(r"\\boxed\{([^{}]*)\}", r"\1", text)
text = text.replace("$", " ")
text = re.sub(r"[*`_#]+", " ", text)
text = re.sub(r"^\**\s*final answer\s*(?:is|:)?\s*", "", text, flags=re.IGNORECASE)
text = re.sub(r"^\**\s*the final answer\s*(?:is|:)?\s*", "", text, flags=re.IGNORECASE)
text = re.sub(r"^\**\s*final\s*:\s*", "", text, flags=re.IGNORECASE)
text = re.sub(r"^\**\s*answer\s*(?:is|:)?\s*", "", text, flags=re.IGNORECASE)
text = re.sub(r"\s+", " ", text)
return text.strip(" .:,;!?)(")
def extract_final_answer(text: str) -> str:
for regex in [FINAL_LINE_RE, FINAL_MARKER_RE, BOXED_RE, FINAL_ANSWER_LINE_RE]:
matches = regex.findall(text)
for match in reversed(matches):
cleaned = clean_answer_text(match)
if cleaned:
return cleaned
lines = [line.strip() for line in text.strip().splitlines() if line.strip()]
for line in reversed(lines):
cleaned = clean_answer_text(line.removeprefix("FINAL:").strip())
if cleaned:
return cleaned
return clean_answer_text(text)
def has_final_marker(text: str) -> bool:
return (
FINAL_LINE_RE.search(text) is not None
or FINAL_MARKER_RE.search(text) is not None
or FINAL_ANSWER_LINE_RE.search(text) is not None
)
def normalize_numeric_string(text: str) -> str:
value = text.strip()
negative = value.startswith("-")
if negative:
value = value[1:]
if "." in value:
whole, fractional = value.split(".", 1)
whole = whole.lstrip("0") or "0"
fractional = fractional.rstrip("0")
if not fractional:
normalized = whole
else:
normalized = f"{whole}.{fractional}"
else:
normalized = value.lstrip("0") or "0"
if normalized == "0":
negative = False
if negative:
return f"-{normalized}"
return normalized
def answers_match(predicted: str, gold: str) -> bool:
if normalize(predicted) == normalize(gold):
return True
gold_is_number = NUMERIC_RE.fullmatch(gold.strip()) is not None
if gold_is_number:
normalized_gold = normalize_numeric_string(gold)
predicted_numbers = NUMERIC_RE.findall(predicted)
if predicted_numbers and normalize_numeric_string(predicted_numbers[-1]) == normalized_gold:
return True
return False
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