- Add get_concurrency_limit function to calculate concurrency limit based on VRAM
- Update clean_vram function and rename to get_vram for better clarity
- Apply concurrency limit to the to_markdown function in the Gradio app
- Decrease the line height multiplier from 0.8 to 0.7 for both left and right sides
- This modification aims to improve the accuracy of paragraph splitting
- Remove overlap between bboxes for block separation
- Sort bboxes by combined x and y coordinates for better layout handling
- Comment out previous overlap removal function
- Extract language detection to block level instead of line level
- Improve logic for handling Chinese, Japanese, and Korean languages
- Refactor code for better readability and performance
- Optimize handling of hyphenated words at line ends
- Introduce language detection to determine line spacing based on language context
- Implement different spacing rules for Chinese/Japanese/Korean and Western texts
- Adjust span content handling based on detected language and span type
- Introduce `span_height_radio` parameter to calculate_char_in_span function
- Replace fixed ratio with dynamic ratio for character and span axis alignment
- Improve flexibility and accuracy of character placement within spans
- Add empty paragraph handling for pages with no content
- Append an empty markdown object when a page has no paragraphs
- Increment page number even if no content is present
- Add LINE_START_FLAG tuple to identify starting flags of a line
- Modify calculate_char_in_span function to handle both line start and stop flags
- Remove redundant char_is_line_stop_flag variable and simplify logic
- Improve line flag detection to enhance text extraction accuracy
- Replace pdfminer with PyMuPDF for character detection
- Implement new method detect_invalid_chars_by_pymupdf
- Update check_invalid_chars in pdf_meta_scan.py to use new method
- Add __replace_0xfffd function in pdf_parse_union_core_v2.py to handle special characters
- Remove unused imports and update requirements.txt
- Remove unused language detection code
- Simplify text content processing logic
- Update span sorting and text extraction in pdf_parse_union_core_v2.py
- Add language detection for each block of text
- Implement language-specific logic for right margin alignment
- Introduce logging for debugging purposes
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