Add the missing plain-text code extensions

[Phantom-VK]

Problem

The supported set is .pdf .pptx .docx .txt .md .py .json. Python and JSON are in, but not JavaScript, TypeScript, Go, Rust, Java, C, C++, HTML, CSS, YAML, TOML or XML. There is no technical reason for the split: _read_text already handles all of them, so this is adding entries to a set.

Counting tokens in a codebase before feeding it to a model is a mainstream use case this currently refuses.

Where

• parsing.py:11 -> SUPPORTED_EXTENSIONS = {...}

What to add

.js .ts .tsx .jsx .go .rs .java .c .cpp .h .hpp .html .css .yaml .yml .toml .xml .sql .sh .bash

Scope

1. Extend SUPPORTED_EXTENSIONS
2. Add tests to test_parsing.py
3. Update the file-picker filter in api.py:pick_files
4. Update the website format list

Perfect first PR.

[Digvijay557]

Hi @Phantom-VK, I would like to work on this issue.
My approach is to extend the supported extensions in parsing.py, update the file-picker and website format list accordingly, and add tests covering the newly supported extensions. I’ll keep the changes scoped to this issue and verify everything locally before opening the PR.

[Phantom-VK]

Hi @Phantom-VK, I would like to work on this issue. My approach is to extend the supported extensions in parsing.py, update the file-picker and website format list accordingly, and add tests covering the newly supported extensions. I’ll keep the changes scoped to this issue and verify everything locally before opening the PR.

I have assgned the issue, please go ahead. Thank you!