d0f52751ce
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
43 lines
1.9 KiB
Rust
43 lines
1.9 KiB
Rust
use std::path::Path;
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use pdftract_core::parser::stream::{FileSource, PdfSource};
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use pdftract_core::parser::xref::load_xref_with_prev_chain;
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fn main() {
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let path = Path::new("tests/fingerprint/fixtures/byte_identical/v1.pdf");
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let source = FileSource::open(path).unwrap();
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// Read startxref from the end of the file
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let len = source.len().unwrap();
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let scan_size = 1024.min(len) as usize;
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let scan_start = (len - scan_size as u64) as u64;
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let tail_data = source.read_at(scan_start, scan_size).unwrap();
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let startxref_pos = tail_data.windows(9).rposition(|w| w == b"startxref").unwrap();
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let offset_data = &tail_data[startxref_pos + 9..];
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let offset_start = offset_data.iter().position(|&b| !matches!(b, b' ' | b'\r' | b'\n' | b'\t')).unwrap();
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let offset_data_trimmed = &offset_data[offset_start..];
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let newline_pos = offset_data_trimmed.iter().position(|&b| b == b'\n' || b == b'\r').unwrap();
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let offset_str = std::str::from_utf8(&offset_data_trimmed[..newline_pos]).unwrap();
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let startxref_offset: u64 = offset_str.trim().parse().unwrap();
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println!("startxref offset: {}", startxref_offset);
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let xref_section = load_xref_with_prev_chain(&source, startxref_offset);
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println!("Xref entries: {}", xref_section.entries.len());
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if let Some(trailer) = &xref_section.trailer {
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println!("Trailer found with {} keys", trailer.len());
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for (key, _value) in trailer.iter() {
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println!(" Key: '{}'", key);
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}
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// Try different lookups
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println!("trailer.get(\"Root\"): {:?}", trailer.get("Root"));
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println!("trailer.get(\"/Root\"): {:?}", trailer.get("/Root"));
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println!("trailer.get(\"Size\"): {:?}", trailer.get("Size"));
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println!("trailer.get(\"/Size\"): {:?}", trailer.get("/Size"));
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} else {
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println!("No trailer found!");
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}
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}
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