nx_xbrl_lib.nx

nx_xbrl_lib.nx -- F987: XBRL financial-fact parse + accounting-identity validation. SEC filings are tagged in XBRL: <us-gaap:Assets contextRef=... unitRef=usd decimals=0>1000000</us-gaap:Assets>. The sovereign property is that the parsed facts are CROSS-CHECKED against the accounting identity (Assets == Liabilities + StockholdersEquity), so a mis-tagged or internally-inconsistent filing is FLAGGED rather than fed blindly into a valuation. The same fail-closed discipline as the derived statements: a balance sheet -- even one someone else prepared and tagged -- must balance, or it is rejected. These parsed integers are exactly what feeds the distress (Altman Z) and stewardship engines with GROUNDED numbers instead of hand-entered ones. ATTRIBUTE-AWARE + NAMESPACE-AWARE by word boundary: matching <us-gaap:Assets checks the next byte is '>' or whitespace, so it never mis-matches <us-gaap:AssetsCurrent>. That boundary check is the whole correctness of a tag parser and it is done explicitly. FAIL-CLOSED: a missing required fact is a rejection (a sentinel), not a zero -- a balance sheet with no Assets tag is not a balance sheet with zero assets. SCOPE (declared): parses fact text + validates the balance identity. Full XBRL (contexts, dimensions, calculation linkbases, negative decimals scaling) is a declared follow-on. Values are whole units here. DRY: composes nx_iso20022_lib (iso_find/iso_len). license_tier: ORIGINAL LIB.