OpenSign/apps/OpenSignServer/cloud/parsefunction/pdf/customSignPdf/xrefToRefMap.min.js

import SignPdfError from"./SignPdfError.min.js";const xrefToRefMap=r=>{r=r.split("\n").filter(r=>""!==r);let n=0,t=0;const f=new Map;return r.forEach(r=>{r=r.split(" ");if(2===r.length)n=parseInt(r[0]),t=parseInt(r[1]);else{if(t<=0)throw new SignPdfError("Too many lines in xref table.",SignPdfError.TYPE_PARSE);--t;var[r,,e]=r;if("f"!==e.trim()){if("n"!==e.trim())throw new SignPdfError(`Unknown in-use flag "${e}". Expected "n" or "f".`,SignPdfError.TYPE_PARSE);if(!/^\d+$/.test(r.trim()))throw new SignPdfError(`Expected integer offset. Got "${r}".`,SignPdfError.TYPE_PARSE);e=parseInt(r.trim());f.set(n,e)}n+=1}}),f};export default xrefToRefMap;