pdftract/scratch/debug_fixtures.py
jedarden d0f52751ce fix(pdftract-39gey): fix indent trigger to not split drop-cap paragraphs
The indent trigger was using .abs() which fired on both increased indent
(non-indented → indented) AND decreased indent (indented → non-indented).
This caused drop-cap style paragraphs (indented first line, flush-left
continuation) to incorrectly split into two blocks.

Per plan Phase 4.4 heuristic #2, indent change should only trigger when the
current line is MORE indented (to the right, larger x0) than the block
average - i.e., a new paragraph starting after non-indented text. It should
NOT trigger for decreased indent (first line indented, rest flush-left).

Fix: Remove .abs() and only check if line_x0 - block_avg_x0 > threshold.

Tests:
- test_indented_first_line_new_block: PASS (non-indented → indented splits)
- test_indented_first_line_of_paragraph_not_split: PASS (drop cap stays together)
- All 179 line module tests: PASS
2026-06-07 13:43:19 -04:00

48 lines
1.6 KiB
Python

#!/usr/bin/env python3
import pikepdf
# Check linearization_toggle fixtures
for ver in ["v1", "v2"]:
path = f"tests/fingerprint/fixtures/linearization_toggle/{ver}.pdf"
print(f"\n{path}:")
try:
with pikepdf.open(path) as pdf:
print(f" Pages: {len(pdf.pages)}")
root_ref = pdf.trailer.get("/Root")
print(f" Trailer/Root: {root_ref}")
# Check if linearized
if "/Linearized" in pdf.Root:
lin = pdf.Root["/Linearized"]
print(f" Linearized: {lin}")
# Get the actual root object
root = pdf.Root
print(f" Root type: {type(root)}")
# Check if /Pages key exists
if "/Pages" in root:
pages_ref = root["/Pages"]
print(f" /Pages reference: {pages_ref}")
except Exception as e:
print(f" Error: {e}")
# Check content_edit fixtures
print("\n--- content_edit fixtures ---")
for ver in ["v1", "v2"]:
path = f"tests/fingerprint/fixtures/content_edit_one_glyph/{ver}.pdf"
print(f"\n{path}:")
try:
with pikepdf.open(path) as pdf:
page = pdf.pages[0]
if "/Contents" in page:
contents = page["/Contents"]
if hasattr(contents, "read_bytes"):
data = contents.read_bytes()
else:
data = bytes(contents)
print(f" Content stream: {data[:100]}")
print(f" Length: {len(data)}")
except Exception as e:
print(f" Error: {e}")