Leita 
A universal search query language that can transpile into specific search provider syntax (currently only Google syntax is supported)
A personal project to explore Rust and lexers
Name
Leita means "to seek" or "to search" in Old Norse and many descendant languages
Install
Cargo
Clone this repository and run the following command in the repository root:
cargo install --path .Usage
leita <query>Syntax
| Concept | Leita | DuckDuckGo | Stack Overflow | GitHub | |
|---|---|---|---|---|---|
| exact | "term" | "term" | "term" | "term" | |
| and | first & second | first AND second | |||
| or | first | second | first OR second | [first] OR [second] | ||
| not | !term | -term | -term | NOT term | |
| one of | (first | second | third) | (first OR second OR third) | |||
| wildcard | first * second | first * second | |||
| numeric range | start-end | start..end | start..end | start..end | |
| distance | first ~count second | first AROUND(count) second | |||
| escaped | \token | ||||
| more | +term | ||||
| less | -term |
Notes:
- Only Google syntax is supported at the moment, other syntaxes added as examples
- Google supports
|in place ofOR - Stack Overflow supports wildcards, but only inside a word
Examples
(dog | cat | wolf | yeti) shampoo 2021-2022 "great!" !lavender home-made→(dog OR cat OR wolf OR yeti) shampoo 2021..2022 "great!" -lavender home-made- Tokens in quotes need not be escaped
- Ranges are
number-numberonly
good ~5 dog→good AROUND(5) dog
Not Supported
- At the moment an exact term (
"term") cannot have escaped quotes ("\"term\"")
Acknowledgements
Leita uses the following:
Assets:
- The search icon is from Heroicons