Step 4d removes "|" and "||" word_boxes that OCR produces when reading
physical vertical divider lines between columns. Also strips stray pipe
chars from cell text.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Two fixes:
1. Add pl, sg, no, also, ae, be etc. to _GRAMMAR_BRACKET_WORDS so
annotations like (pl) and (no pl) are not replaced with IPA.
2. Skip articles (the, a, an) in fix_ipa_continuation_cell — they
never get IPA in vocabulary books.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Three fixes:
1. fix_ipa_continuation_cell: when headword has inline IPA like
"beat [bˈiːt] , beat, beaten", only generate IPA for uncovered
words (beaten), not words already shown (beat). When bracket is
at end like "the Highlands [ˈhaɪləndz]", return inline IPA directly.
2. Step 5d: recover garbled IPA from word_boxes when Step 5c emptied
the cell text (e.g. "[n, nn]" → "").
3. Added 2 tests for inline IPA behavior (35 total).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Page numbers like "two hundred and twelve" in the last row were falsely
detected as headings. Now first and last non-header rows are excluded.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Color headings now preserve actual starting col_index instead of hardcoded 0
- New _detect_heading_rows_by_single_cell: detects rows with only 1 content
cell (excl. page_ref) as headings — catches black headings like "Theme"
that have normal color/height but are alone in their row
- Runs after Step 5d (IPA continuation) to avoid false positives
- 5 new tests (32 total)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Two fixes:
1. Step 5d now only treats cells as continuation when text is entirely
inside brackets (e.g. "[n, nn]"). Cells with headwords outside brackets
(e.g. "employee [im'ploi:]") are no longer overwritten.
2. fix_ipa_continuation_cell no longer skips grammar words like "down" —
they are part of the headword in phrasal verbs like "close sth. down".
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Detect bracketed text without real IPA symbols as garbled OCR phonetics
- Allow IPA continuation fix even when other columns have content (for rows
where EN cell is clearly garbled bracketed IPA)
- Strip parenthetical grammar annotations like (no pl) from headword before
IPA lookup in fix_ipa_continuation_cell
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
1. Skip ghost filtering for boxes with border_thickness=0 (images/graphics
have no border lines to produce OCR artifacts like |, I)
2. Remove individual word_boxes with height > 3x zone median (OCR from
graphics like a huge "N" from a map image below text)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
1. Filter words inside image_overlays (removes OCR from images)
2. Ghost filter: only remove single-char border artifacts, not multi-char
like (= which is real content
3. Skip first-row header detection for zones with image_overlays
(merged geometry creates artificial gaps)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Zone merging: content zones separated by box zones (images) are merged
into a single zone with image_overlays, so split tables reconnect.
Heading detection: after color annotation, rows where all words are
non-black and taller than 1.2x median are merged into spanning heading cells.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
