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3 Commits

Author SHA1 Message Date
Charles KWON OhJun
7e2a159b88 feat: CDX support + ORDSCOPE + cross-read Harbour compatibility 
CDX Integration:
- IndexEngine interface: common for NTX Index and CDX Tag
- OrderListAdd: auto-detects .cdx/.ntx extension, opens CDX tags
- decodeCompoundLeaf: proper bit-packed tag directory decoding
  (was stub falling through to scanCompoundLeaves with wrong names)
- CDX Tag: added KeyLen(), KeyExpr(), ForExpr(), IsDescending(), Close()
- CDX compound recNo = direct byte offset (not page number)

ORDSCOPE:
- SetScope/ClearScope/SetScopeTop/SetScopeBottom on DBFArea
- GoTopIndexed: seeks to scopeTop, validates within scopeBottom
- GoBottomIndexed: seeks to scopeBottom boundary
- SkipIndexed: stops at scope boundaries (top and bottom)
- OrdScope RTL function registered (nScope: 0=TOP, 1=BOTTOM)
- scopeKeyFromValue: converts Value to padded key bytes

Index Order Management:
- OrderListFocus: handles numeric order ("2" → order 2)
- SET ORDER TO n: gengo emits hbrt.NtoS for int-to-string conversion
- IndexOrd/OrdCount/OrdName/OrdKey: real implementations (were stubs)
- OrderCount/CurrentOrder/OrderName/OrderKeyExpr accessors on DBFArea
- ClearScope on order switch (prevents stale scope)

Cross-read test: Harbour-created CDX → Five reads, 20/20 items match:
  NAME/CITY/ID seek, ORDSCOPE count, GoTop/GoBottom all identical

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-04-06 12:21:26 +09:00
Charles KWON OhJun
6e78d12cc2 fix: 3 RDD compat bugs — FIELD->, AsNumInt Double, PACK/ZAP with index 
Bug 1: FIELD->NAME in INDEX ON expression
- evalKeyExprInner: strip FIELD->/alias-> prefix before field lookup
- exprToString: handle AliasExpr (FIELD->NAME → "FIELD->NAME")

Bug 2: AsNumInt() on Double returned IEEE 754 raw bits
- Value.AsNumInt(): check tDouble and convert via Float64frombits
- Fixed array index crash when index is result of % modulo

Bug 3: PACK/ZAP crash with open indexes
- OrderListRebuild: fully implemented (was TODO stub)
  Saves index info, closes all, sets idxState=nil, recreates
- OrderCreate: set current=-1 during key evaluation (natural GoTo)
- PACK/ZAP: save/restore idxState, rebuild after operation
- Register __DBPACK, __DBZAP, DBRECALL symbol aliases

Harbour vs Five: 45/47 match (96%), 2 diffs are duplicate-key sort order

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-04-06 04:41:19 +09:00
Charles KWON OhJun
59568f3301 Five v0.9 — Harbour + Go fusion language 
- Compiler: PP → Lexer → Parser → Analyzer → Gengo pipeline
- Parser: 232/236 (98%) Harbour compatibility, registry-based dispatch
- RTL: 351 Harbour-compatible functions
- RDD: DBF/NTX/CDX engines with Rushmore bitmap optimization
- Go Interop: IMPORT + pkg.Func() + obj:Method() with FastPath (15M calls/sec)
- HB_FUNC API: Full Harbour C API compatible Go bridge
- Concurrency: SPAWN/LAUNCH/GOROUTINE, <-, WATCH, PARALLEL FOR, ASYNC/AWAIT
- Extensions: Multi-return, DEFER, Slice, f-string, Nil-safe ?:, CONST
- Macro Compiler: Runtime AST parsing and evaluation
- Debugger: TUI debugger with source display, breakpoints, stepping
- FRB: Native + Pcode dual mode runtime binary
- Tests: 13 packages ALL PASS

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-31 09:41:50 +09:00