pdftract/crates/pdftract-cli/examples/debug_v1_trailer.rs
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

18 lines
615 B
Rust

use std::path::Path;
use pdftract_core::parser::stream::{FileSource, PdfSource};
fn main() {
let path = Path::new("tests/fingerprint/fixtures/byte_identical/v1.pdf");
let source = FileSource::open(path).unwrap();
let len = source.len().unwrap();
println!("File length: {}", len);
// Read last 500 bytes
let scan_size = 500.min(len) as usize;
let scan_start = len - scan_size as u64;
let tail_data = source.read_at(scan_start, scan_size).unwrap();
println!("Tail data (last {} bytes):", tail_data.len());
println!("{}", String::from_utf8_lossy(&tail_data));
}