| import requests, re, json, os |
| H = "https://huggingface.co" |
| from pymupdf import Document as MuDoc |
|
|
| def norm(s): return re.sub(r'[^0-9]','',str(s)) |
|
|
| pdf=requests.get(H+"/datasets/bep40/grob-products-updated/resolve/main/pdfs/imudex_2026.pdf", timeout=600).content |
| open("/tmp/imudex.pdf","wb").write(pdf) |
| doc=MuDoc("/tmp/imudex.pdf") |
| code_pat=re.compile(r'^[\d\s.]{6,}$') |
|
|
| def parse_page(pgn): |
| pg=doc[pgn]; d=pg.get_text("dict") |
| lines=[] |
| for b in d["blocks"]: |
| if b["type"]!=0: continue |
| blktext="".join(s["text"] for l in b["lines"] for s in l["spans"]) |
| for l in b["lines"]: |
| txt="".join(s["text"] for s in l["spans"]).strip() |
| if txt: |
| x0,y0,x1,y1=l["bbox"] |
| lines.append({"x0":round(x0,1),"y0":round(y0,1),"x1":round(x1,1),"y1":round(y1,1),"t":txt,"block":blktext.strip()}) |
| imgs=[] |
| for ip in pg.get_image_info(): |
| bb=ip["bbox"]; w=ip.get("width") or 0; h=ip.get("height") or 0 |
| if w>=160 and h>=110: |
| imgs.append({"x0":bb[0],"y0":bb[1],"x1":bb[2],"y1":bb[3],"w":w,"h":h}) |
| return lines,imgs |
|
|
| def side_of_x(x): return 'L' if x<567 else 'R' |
|
|
| def nearest_img_col(side, code_y, imgs): |
| cand=[im for im in imgs if side_of_x((im["x0"]+im["x1"])/2)==side] |
| if not cand: return None |
| bd=1e15; best=None |
| for im in cand: |
| icy=(im["y0"]+im["y1"])/2 |
| dd=abs(icy-code_y) |
| if dd<bd: bd=dd; best=im |
| return best |
|
|
| def is_footnote_code(line): |
| return len(line["block"]) > len(line["t"])+2 |
|
|
| pages_cached={pgn:parse_page(pgn) for pgn in range(len(doc))} |
|
|
| def page_code_blocks(pgn): |
| lines=pages_cached[pgn][0] |
| codes=[] |
| for l in lines: |
| t=l["t"].strip() |
| if code_pat.match(t) and len(t)>=6 and not is_footnote_code(l): |
| codes.append(l) |
| codes.sort(key=lambda l:(l["x0"],l["y0"])) |
| blocks=[] |
| for c in codes: |
| side=side_of_x(c["x0"]) |
| cur=None |
| for b in blocks: |
| if b["side"]==side and abs(c["y0"]-b["codes"][-1]["y0"])<22: |
| cur=b; break |
| if cur is None: |
| cur={"side":side,"codes":[c]}; blocks.append(cur) |
| else: |
| cur["codes"].append(c) |
| for b in blocks: |
| first=b["codes"][0] |
| b["img"]=nearest_img_col(b["side"], first["y0"], pages_cached[pgn][1]) |
| return blocks |
|
|
| for pgn in [80, 119, 118]: |
| blocks=page_code_blocks(pgn) |
| print(f"=== PAGE {pgn+1} (pdf idx {pgn}) ===") |
| for b in blocks: |
| im=b["img"] |
| print(f"side={b['side']} codes={[c['t'] for c in b['codes']]} first_y={b['codes'][0]['y0']} img={[round(im['x0']),round(im['y0']),round(im['x1']),round(im['y1'])] if im else None}") |
|
|
| print("\n=== page 79 'Tên hàng' lines ===") |
| for l in pages_cached[78][0]: |
| if l["t"].strip()=="Tên hàng": |
| print(l["x0"], l["y0"]) |
| print("DONE") |
