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
33 lines
1.3 KiB
Rust
33 lines
1.3 KiB
Rust
// Test: Debug fingerprint content stream decoding
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use pdftract_core::document::compute_pdf_fingerprint;
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fn main() {
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let v1_path = std::path::PathBuf::from("tests/fingerprint/fixtures/content_edit_one_glyph/v1.pdf");
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let v2_path = std::path::PathBuf::from("tests/fingerprint/fixtures/content_edit_one_glyph/v2.pdf");
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let fp1 = compute_pdf_fingerprint(&v1_path).expect("Failed to compute v1");
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let fp2 = compute_pdf_fingerprint(&v2_path).expect("Failed to compute v2");
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println!("v1 fingerprint: {}", fp1);
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println!("v2 fingerprint: {}", fp2);
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println!("Equal: {}", fp1 == fp2);
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// Let's also check file sizes
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let v1_meta = std::fs::metadata(&v1_path).unwrap();
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let v2_meta = std::fs::metadata(&v2_path).unwrap();
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println!("v1 size: {} bytes", v1_meta.len());
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println!("v2 size: {} bytes", v2_meta.len());
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// And file hashes
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use std::io::Read;
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let mut v1_bytes = Vec::new();
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let mut v2_bytes = Vec::new();
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std::fs::File::open(&v1_path).unwrap().read_to_end(&mut v1_bytes).unwrap();
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std::fs::File::open(&v2_path).unwrap().read_to_end(&mut v2_bytes).unwrap();
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use sha2::{Digest, Sha256};
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let v1_hash = Sha256::digest(&v1_bytes);
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let v2_hash = Sha256::digest(&v2_bytes);
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println!("v1 SHA256: {}", hex::encode(v1_hash));
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println!("v2 SHA256: {}", hex::encode(v2_hash));
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}
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