File size: 2,932 Bytes
e9462cd fa70564 e9462cd fa70564 e9462cd fa70564 e9462cd fa70564 e9462cd fa70564 e9462cd fa70564 e9462cd fa70564 e9462cd fa70564 e9462cd | 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 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | from __future__ import annotations
import ast
import json
import math
import re
from typing import Any, Iterable, List
from models import ChatRequest
def clamp01(x: Any, default: float = 0.5) -> float:
try:
v = float(x)
return max(0.0, min(1.0, v))
except Exception:
return default
def normalize_spaces(text: str) -> str:
return re.sub(r"\s+", " ", str(text or "")).strip()
def clean_math_text(text: str) -> str:
t = str(text or "")
t = t.replace("×", "*").replace("÷", "/")
t = t.replace("–", "-").replace("—", "-").replace("−", "-")
t = t.replace("\u00a0", " ")
return t
def tokenize(text: str) -> List[str]:
return re.findall(r"[a-z0-9]+", clean_math_text(text).lower())
def score_token_overlap(query: str, text: str) -> float:
q = set(tokenize(query))
t = set(tokenize(text))
if not q or not t:
return 0.0
overlap = len(q & t)
return overlap / max(1, len(q))
def extract_text_from_any_payload(payload: Any) -> str:
if payload is None:
return ""
if isinstance(payload, str):
s = payload.strip()
if not s:
return ""
if (s.startswith("{") and s.endswith("}")) or (s.startswith("[") and s.endswith("]")):
try:
decoded = json.loads(s)
return extract_text_from_any_payload(decoded)
except Exception:
pass
try:
decoded = ast.literal_eval(s)
if isinstance(decoded, (dict, list)):
return extract_text_from_any_payload(decoded)
except Exception:
pass
return s
if isinstance(payload, dict):
for key in [
"message", "prompt", "query", "text", "user_message",
"input", "data", "payload", "body", "content",
]:
if key in payload:
maybe = extract_text_from_any_payload(payload[key])
if maybe:
return maybe
parts = [extract_text_from_any_payload(v) for v in payload.values()]
return "\n".join([p for p in parts if p]).strip()
if isinstance(payload, list):
parts = [extract_text_from_any_payload(x) for x in payload]
return "\n".join([p for p in parts if p]).strip()
return str(payload).strip()
def get_user_text(req: ChatRequest, raw_body: Any = None) -> str:
for field in ["message", "prompt", "query", "text", "user_message"]:
value = getattr(req, field, None)
if isinstance(value, str) and value.strip():
return value.strip()
return extract_text_from_any_payload(raw_body).strip()
def short_lines(items: Iterable[str], limit: int) -> List[str]:
out: List[str] = []
for item in items:
item = normalize_spaces(item)
if item:
out.append(item)
if len(out) >= limit:
break
return out
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