mirror of
https://github.com/Unstructured-IO/unstructured.git
synced 2025-06-27 02:30:08 +00:00
eb8ce89137
### Summary In order to convert between incompatible language codes from packages used for OCR, this change adds a function to map between any standard language codes and tesseract OCR specific codes. Users can input language information to `languages` in any Tesseract-supported langcode or any ISO 639 standard language code. ### Details - Introduces the [python-iso639](https://pypi.org/project/python-iso639/) package for matching standard language codes. Recompiles all dependencies. - If a language is not already supplied by the user as a Tesseract specific langcode, supplies all possible script/orthography variants of the language to the Tesseract OCR agent. ### Test Added many unit tests for a variety of language combinations, special cases, and variants. For general testing, call partition functions with any lang codes in the languages parameter (Tesseract or standard). for example, ``` from unstructured.partition.auto import partition elements = partition(filename="example-docs/layout-parser-paper.pdf", strategy="hi_res", languages=["en", "chi"]) print("\n\n".join([str(el) for el in elements])) ``` should supply eng+chi_sim+chi_sim_vert+chi_tra+chi_tra_vert to Tesseract
Example Docs
The sample docs directory contains the following files:
example-10k.html- A 10-K SEC filing in HTML formatlayout-parser-paper.pdf- A PDF copy of the layout parser paperfactbook.xml/factbook.xsl- Example XML/XLS files that you can use to test stylesheets
These documents can be used to test out the parsers in the library. In addition, here are instructions for pulling in some sample docs that are too big to store in the repo.
XBRL 10-K
You can get an example 10-K in inline XBRL format using the following curl. Note, you need
to have the user agent set in the header or the SEC site will reject your request.
curl -O \
-A '${organization} ${email}'
https://www.sec.gov/Archives/edgar/data/311094/000117184321001344/0001171843-21-001344.txt
You can parse this document using the HTML parser.