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fix: reject cell-rect "tables" that are actually prose in a framed box (#58)

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The rect-based cell fallback in detect_row_stripe_table_from_cell_rects
derives columns purely from text X-position clustering. When prose
wraps inside a bounding-box rect (chat transcripts, stylized figures),
the word-boundary gaps cluster into many spurious columns, producing
a multi-column "table" that is just fragmented prose.

Count cells containing common English function words (articles,
prepositions, pronouns, common verbs) and reject the fallback when
20%+ of non-empty cells contain any such word. Real tabular data —
labels, units, numbers, short identifiers — rarely contains these.

Update the td9264 snapshot: the government document section that
previously rendered as a malformed table now renders as cleaner
prose + a proper CFR list.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Abimael Martell
2026-04-21 10:23:28 -07:00
committed by GitHub
co-authored by Claude Opus 4.7
parent 2876fa4b3e
commit 6819852541
2 changed files with 83 additions and 16 deletions
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tests/snapshots/td9264.md
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@@ -157,14 +157,33 @@ section and paragraph
|§1.6043-2(a)|or 1.1081-11|3T(a), or §1.1081-11T|
|The first sentence of §301.6011-5T(a) (twice)|§1.6012-2|paragraphs (a), (b) and (d) through (j) of §1.6012- 2, and paragraph (c) of §1.6012-2T|
|||PART 602--OMB CONTROL NUMBERS UNDER THE PAPERWORK||
|---|---|---|---|
||REDUCTION ACT Authority: 26 U.S.C. 7805. 1. The following entries to the table are removed: §602.101 OMB Control numbers.|Par. 54. The authority citation for part 602 continues to read as follows: Par. 55. In §602.101, paragraph (b) is amended to read as follows:||
|* * * * *|(b) * * * CFR part or section where identified or described||Current OMB control No.|
|* * * * *|1.332-6………………………………………………………………….|1.382-11……………………………………………………………….. 1545-2019 1.351-3…………………………………………………………………. 1545-2019 1.355-5…………………………………………………………………. 1545-2019 1.368-3…………………………………………………………………. 1545-2019 1.1081-11………………………………………………………………. 1545-2019|1545-2019|
|* * * * *|§602.101 OMB Control numbers.|______________________________________________________________ 2. The following entries are added in numerical order to the table:||
|* * * * *|(b) * * * CFR part or section where identified or described||Current OMB control No.|
|* * * * *|1.302-2T………………………………………………………………… 1545 1.302-4T………………………………………………………………… 1545||-2019 -2019|
PART 602--OMB CONTROL NUMBERS UNDER THE PAPERWORK REDUCTION ACT Par. 54. The authority citation for part 602 continues to read as follows: Authority: 26 U.S.C. 7805. Par. 55. In §602.101, paragraph (b) is amended to read as follows:
1. The following entries to the table are removed:
§602.101 OMB Control numbers.
* * * * *
(b) * * *
CFR part or section where Current OMB identified or described control No.
* * * * *
1.332-6…………………………………………………………………. 1545-2019
1.382-11……………………………………………………………….. 1545-2019
1.351-3…………………………………………………………………. 1545-2019
1.355-5…………………………………………………………………. 1545-2019
1.368-3…………………………………………………………………. 1545-2019
1.1081-11………………………………………………………………. 1545-2019
* * * * * **______________________________________________________________**
2. The following entries are added in numerical order to the table:
§602.101 OMB Control numbers.
* * * * *
(b) * * *
CFR part or section where Current OMB identified or described control No.
* * * * *
1.302-2T………………………………………………………………… 1545-2019
1.302-4T………………………………………………………………… 1545-2019
|1.331-1T………………………………………………………………… 1545|-2019|
|---|---|