Commit Graph
12 Commits
Author SHA1 Message Date
Abimael Martell 5b1fe30c66 tables: expand multi-row cells in-place when fallback heuristic is empty (#71)
* tables: expand multi-row TSR cells in place

Recover row-under-counted TSR tables by splitting overstuffed cells with native PDF text bands before falling back to heuristic extraction.

Made-with: Cursor

* docs: note multi-row expansion scope

Clarify that the row-band cap intentionally keeps v1 focused on common small row-loss cases while larger compressions continue to use heuristic fallback.

Made-with: Cursor
2026-04-29 08:18:09 -07:00
Abimael Martell c186a036fc tables: add detectVectorGridInRegion napi export for region-scoped vector grid detection (#70)
* feat: add vector grid region detector napi export

Expose region-scoped vector PDF grid detection so TSR callers can reuse native geometry before model fallback.

Made-with: Cursor

* fix: address vector grid review feedback

Return null for rotated vector grids until the coordinate transform has coverage and reject out-of-crop cell boxes surfaced by real-PDF smoke testing.

Made-with: Cursor

* test: add crop bbox plausibility coverage

Cover in-crop, out-of-crop, slack-boundary, and non-positive DPI behavior for vector grid cell bbox validation.

Made-with: Cursor
2026-04-28 17:20:15 -07:00
Abimael MartellandClaude Opus 4.7 fbab84fc20 feat: TSR auto-fallback to heuristic on quality issues, v1.7.1 (#67)
Adds extract_tables_with_structure_auto_mem (Rust) /
extractTablesWithStructureAuto (napi). Returns
TableExtractionResult { markdown, fallback_reason } per input.

The wrapper runs the existing TSR-hybrid path then checks the
resulting cells for two known SLANet detection pathologies:

* phantom_empty_row: empty row sandwiched between non-empty rows
  (cheap, cell-metadata only).
* multi_row_in_cell: re-reads PDF text items, flags any cell whose
  contained items span >1.3× either the smallest cell height or
  the tallest contained item height. Catches the FNBO failure mode
  where a tall TSR cell absorbs two adjacent PDF rows.

When either fires, extract_tables_in_regions_mem runs over the same
crop bbox and its markdown replaces the TSR markdown.
fallback_reason carries the diagnostic label so callers can emit
metrics and watch each pathology independently.

Validated on FNBO branches PDF page 1 (Kansas region):
- TSR-only: merges Shawnee into BVP, wrong census tract on Sonoma.
- Auto fallback (phantom_empty_row): each row separate, correct tracts.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-27 10:13:25 -07:00
Abimael MartellandClaude Opus 4.7 f6d5e214f1 feat: TSR-aware table extraction (extract_tables_with_structure_mem) (#61)
* feat: TSR-aware table extraction (extract_tables_with_structure_mem)

New public function that consumes raw structure-recovery output (HTML
structure tokens + per-cell bboxes from a model like SLANet) and assembles
markdown tables by pulling cell text from the native PDF — no OCR, no
geometry inference.

Why: the existing extract_tables_in_regions_mem infers grid geometry from
text positions only and can't distinguish merged cells from multiple narrow
columns. Pairing structure recovery from a layout/TSR model with native
PDF text gets perfect text quality with proper row/col/span structure.

- New module src/tables/structured.rs: token state machine, polygon→AABB,
  crop-px→page-pt, rowspan/colspan-aware cell layout, markdown emitter.
  Accepts both 4-element rects and 8-element 4-corner polygons.
- New public extract_tables_with_structure_mem in src/lib.rs that reuses
  extract_page_text_items, region_overlaps_item, and the shared region
  text-collection helper. No existing public function modified.
- napi binding extractTablesWithStructure mirroring the existing
  extractTablesInRegions shape (f64 in JS → f32 internally).
- 14 unit tests + 5 integration tests, including a real-PDF gold-standard
  match against bits_pilani_feedback.pdf.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* TSR follow-ups: header-aware separator, cells API, v1.6.0

- cells_to_markdown emits the separator after the LAST row that contains
  is_header=true cells, falling back to "after row 0" when no header is
  flagged. Multi-row theads now render correctly. Three new unit tests
  cover: multi-row header, header not on row 0, no headers (fallback).
- New public extract_tables_with_structure_cells_mem returning
  Vec<Vec<StructuredCell>> so callers can drive their own rendering or
  debug overlays without re-doing the parse + extraction. The markdown
  variant now wraps it. The previously-unused page_pt_bbox field is
  surfaced through this API.
- New napi binding extractTablesWithStructureCells + StructuredCellJs.
- Bump @firecrawl/pdf-inspector to 1.6.0.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-26 00:55:39 -07:00
Abimael MartellandClaude Opus 4.7 4b5ae91f54 feat: expose per-page markdown extraction to Python and Node (#53)
* feat: expose per-page markdown extraction to Python and Node (#49)

Implements the feature requested in issue #49: a list-of-pages markdown output
from the Python API. Matching the existing project pattern, the feature lives
in the Rust core and is surfaced through every binding.

- Rust core: `extract_pages_markdown` (path) and `extract_pages_markdown_mem`
  (bytes) now take `Option<&[u32]>` — `None` returns every page in document
  order; a slice restricts and preserves caller order.
- Python: new `extract_pages_markdown(path, pages=None)` and
  `extract_pages_markdown_bytes(data, pages=None)` functions plus
  `PageMarkdown` / `PagesExtractionResult` classes; stub file updated.
- Node: `extractPagesMarkdown(buffer, pages?)` — `pages` is now optional.
- Tests: 2 new Rust integration tests, 9 new Python tests, 2 new Node
  assertions. All 372 unit + 107 integration + 53 Python tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* chore: bump version from 1.3.0 to 1.4.0

Minor bump for the new per-page markdown extraction API exposed through
the Python and Node bindings.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-20 17:19:03 -07:00
Abimael MartellandClaude Opus 4.6 20f24d1f8d extractPagesMarkdown: return classification metadata (0.7.0) (#32)
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Combine per-page markdown extraction with layout classification into a
single parse. extractPagesMarkdown now returns PagesExtractionResult with
pages_with_tables, pages_with_columns, pages_needing_ocr, and is_complex
alongside the per-page markdown — eliminating redundant PDF parses for
callers that need both.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-14 13:08:07 -07:00
Abimael MartellandClaude Opus 4.6 abb0b925fb Add extractPagesMarkdown for per-page markdown extraction (#31)
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* add extract_pages_markdown_mem for per-page markdown extraction

Enables hybrid OCR pipelines to skip GPU render+layout for simple text
pages by providing per-page markdown with needs_ocr flags. Font stats
are computed document-wide for consistent header detection.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* bump napi package version to 0.6.0

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-14 12:37:32 -07:00
Abimael MartellandClaude Opus 4.6 00c5c18e2a napi: use string enums for PdfType and ItemType (0.5.0) (#29)
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Replace stringly-typed pdf_type and item_type fields with
#[napi(string_enum)] enums for proper TypeScript type checking.
Add link_url field to TextItem instead of encoding URL in the
item_type string.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-14 11:25:26 -07:00
Abimael MartellandClaude Opus 4.6 8e8ab4a19d feat: add extractTablesInRegions NAPI binding for region-based table extraction (#27)
Adds a new function that takes a PDF buffer and page+bbox regions (same interface
as extractTextInRegions), runs heuristic table detection on items within each region,
and returns markdown pipe-tables. Falls back to needs_ocr=true when no table
structure is found or text quality is suspect.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 23:32:02 -07:00
Abimael MartellandClaude Opus 4.6 79e53f779d wrap all NAPI functions in catch_unwind to prevent process abort on panic
Rust panics in NAPI modules abort the Node.js process with no chance
to report errors. This wraps every exported function in catch_unwind,
converting panics into JS Error exceptions that can be caught and
reported to Sentry.

Buffer data is extracted to Vec<u8> before the catch_unwind boundary
to satisfy UnwindSafe requirements.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 15:10:15 -07:00
Abimael MartellandClaude Opus 4.6 506b2a0c70 unify NAPI and Python binding APIs for consistent surface
Both bindings now expose the same 6 function families: process, detect,
classify, extractText, extractTextWithPositions, and extractTextInRegions.
Bumps PyO3 from 0.22 to 0.25 for Python 3.14 support.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-02 11:48:18 -07:00
Abimael MartellandClaude Opus 4.6 87d2bae0d9 add napi binding package for GitHub Packages publishing
Move the napi bridge from fire-pdf into pdf-inspector as `napi/`.
Package name: @firecrawl/pdf-inspector-js, published to GitHub Packages
(npm.pkg.github.com) as a public package on v* tags.

Exposes two functions:
- classifyPdf(buffer) → type, page count, pages needing OCR
- extractTextInRegions(buffer, pageRegions) → per-region text with
  needsOcr quality flag (GID fonts, garbage, encoding issues)

Includes publish workflow that builds linux-x64-gnu + darwin-arm64
binaries and publishes main + platform-specific packages.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 11:29:57 -07:00