oi (odin index) is a documentation viewer for the Odin programming language.

It is an alternative to the pkg.odin-lang.org website, that I started, because:

1. The site was too slow on my laptop :(.
2. I dislike the fuzzy, scattered matching
3. I eventually found myself just typing out the entire:
   pkg.odin-lang.org/core/strings to go to strings...
4. also there still is no os/os2 there and I can never find where laytan's HTTP library docs are...

And now:

1. Well, I went outside and my kernel borked, but I do use SDL with heavy culling of UI elements (and lazy text rendering)
2. There are a bunch of search methods, (default: "dotstar" -- strings.contains + only .* from regex)
3. Ctrl + T to open packages (almost all packages have unique names after 3-4 letters, so why bother typing "core/")
4. base:intrinsics and base:builtin were (for now) traded in for os2 and user libraries (just enter their path)
5. Source can be viewed directly in the user's editor (instead of Github) by pressing Ctrl + G (or in right click menu)

The environment variable ODIN_ROOT is necessary (also needed by odin compiler) The Odin compiler has to be in your PATH to generate the oi.exe directory/cache

git clone https://github.com/Up05/oi
cd oi && odin run .

Could use for "release": odin build . -o:speed

The program is configured through source code. Entire configuration may be found in the main.odin. Simply edit it and rebuild -> reinstall/add to PATH

This is only somewhat inspired by suckless software, since there is no patching, and I haven't figured out how to properly do source code config without the user having to merge their sh*t or copy-paste onto updated sources main.odin.
Sorry...

The UI is made up of "boxes" (only). Content and navbar box contents + some other stuff is cached is tabs, but there can only be 1 tab at once.

All boxes are children of window.root, but (generally) you will want to append to one of window.boxes.(sidebar|content|toolbar). Boxes are layed out automatically, although, after editing them, be sure to set window.should_relayout to true!

The function to append new boxes is:

append_box( parent, ..templates )

// example:

more_generic_text_input: Box = {
    type = .TEXT_INPUT,
    font = .MONO,
    background = .BG1, // 1 is darkest, 4 is brightest
    border    = true,  // BASIC elements can't have a border (currently)
    border_in = true,  // border_in[set]
    ...
}

append_box(toolbar, more_generic_text_input, {
    // 0 in min_size means "fill parent" 
    // (negative numbers are also allowed, just 'parent.x|y - abs(min_size.x|y)')
    min_size = { 0, CONFIG_FONT_SIZE }, 
    text = "search in package"    
})

The templates are "merged" i.e.: properties of the previous structs get overwritten by (non-zero) properties of following structs

I just add all of the random-ass global state to window.

# base building blocks
main    - configuration and the main function
header  - type and many global variable declarations
sdl     - layer of indirection on top of SDL2 and TTF + stuff related
os      - the gateway to core:os/os2
ui      - most of ui implementation + setup_base_ui
util    - utility functions and type aliasses

# specific features
toolbar   - toolbar + tab
modules   - sidebar + content modules
formatter - odin source code formatter + syntax highlighter

# function pointer implementations
keybinds  - keyboard shortcut procedures
event     - event handling procedures

1. use the os[2] package outside of os.odin
2. unalign my code intentionally or remove leading whitespace via tool
3. add unnecessary things to main.odin
4. (to younger me) split up the Box mega struct to save <200kb