nx_rowparse_lib.nx

nx_rowparse_lib.nx -- THE ONE ROW PARSER for delimited estate records, extracted 2026-09-04 because the DRY law fires at THREE and the third copy had just been written. nx_debt_triple parsed TAB-delimited debt rows, nx_aliascensus parsed TAB-delimited allowlist rows, and nx_refdrift parsed PIPE-delimited refs rows, each with its own private slen, line-end, column, span-compare and number-emit -- the same arithmetic written three times with three prefixes. Each copy was CORRECT; that is precisely why the duplication was invisible, and why the estate's rule is a COUNT rather than a judgement about whether it feels duplicated. THE SEPARATOR IS A PARAMETER, WHICH IS THE WHOLE REASON ONE LIB CAN SERVE ALL THREE. The three organs differed on exactly one axis: TAB for the store planes, PIPE for the compare records. A lib that hardcoded either would have forced the third organ to keep its private copy, which is how a shared lib acquires a duplicate sibling and the count goes from three to four. ⚠A NOTE ON WHAT IS NOT HERE. Nothing in this file reads a file, forks, or decides anything. It is pure span arithmetic over a caller-owned buffer, so a consumer's gate can exercise it with a hand-built fixture and no I/O -- which is the property that made the three consumers gateable in the first place. license_tier: ORIGINAL. No syscalls except the emit helpers' scratch allocation. No hw writes (Rule 26).