2 Commits

Author	SHA1	Message	Date
Michael	0671ef277e	feat(io): route read_file through pre-parse repair by default ... Previously only analyze() and direct read_csv_repaired() callers got the byte-level repair pass (BOM strip, NUL strip, smart-double-quote fold, unquoted-delimiter merge). The dedup CLI and any other read_file consumer silently missed it. read_file gains a repair=True default. CSV/TSV inputs run through repair_bytes before pandas sees them; Excel inputs still pass through unchanged. Chunked reads (chunk_size set) bypass repair because the pre- parse pass loads the whole file — preserving streaming behavior on huge files. Repair actions and unrepairable lines are logged at INFO/WARNING. cli_text_clean opts out (repair=False): the cleaner offers fine-grained control via --preset and per-op flags, and a byte-level smart-quote fold under the user's "minimal" preset would violate that contract. The cell-level cleaner does the equivalent work itself when its options ask for it. Tests: read_file default strips BOM and folds curly double quotes; repair=False preserves smart quotes; chunked reads still work and skip repair as documented. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>	2026-04-29 16:09:35 +00:00
Michael	54f92ae47e	feat: implement text cleaner (script 02) with CLI, GUI, and tests ... Builds 02_text_cleaner.py from stub to working: character-level hygiene for CSV/Excel inputs covering trim, whitespace collapse, smart-character folding, Unicode NFC/NFKC, BOM strip, zero-width strip, control-char strip, line-ending normalization, and per-column case conversion. Three presets (minimal/excel-hygiene/paranoid) keep the buyer surface small. - src/core/text_clean.py: pure helpers + CleanOptions/CleanResult + clean_dataframe with dtype-safe column selection - src/cli_text_clean.py: Typer CLI mirroring the dedup CLI shape (dry-run by default, --apply writes cleaned + changes audit, JSON config save/load) - src/gui/pages/2_Text_Cleaner.py: real Streamlit page with preset picker, advanced toggles, preview, before/after metrics, and three download buttons - tests/test_text_clean.py + test_cli_text_clean.py: 92 new tests covering edge cases E1-E50 from the spec - samples/messy_text.csv: demo dataset surfacing UC1, UC3, UC6, UC10 in 10 rows - test-cases/uc16-uc26 + ec05-ec09: per-use-case and per-edge-case fixtures Docs: TECHNICAL.md §10.2 (full Tier 1/2/3 spec), DECISIONS.md v1.7 entry locking the spec, CLI-REFERENCE.md gains the text cleaner section, README.md gains a top-level Text Cleaner block, USER-GUIDE.md status row 02 promoted Skeleton -> Working. 200/200 tests pass. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>	2026-04-29 15:14:15 +00:00