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btrask
A searchable, syncable, content-addressable notetaking system
Right now searching is generally a two step process: search with the site's search engine, and then find on page using the browser. The blog interface could highlight terms in...
Right now we parse queries into a hierarchy of Objective-C objects and execute queries by walking the tree. The operation at each node is simply selected via dynamic dispatch. This...
Our static file server (part of the blog interface) currently uses a series of `strcasecmp` calls to determine what the file extension is. It works but it's obviously not that...
Surprisingly, our submission bottleneck is the file system, not the database. Process for adding a file: 1. Write it to a temporary location 2. `fsync` the file 3. Atomic rename...
It catches pretty much anything with a colon in it, including ISO 8601 dates.
Right now a blog results page spends roughly 1/3 of the time querying and 2/3 sending. That's pretty bad. Each individual result is stored as a file on disk, which...
`db_schema_*` API for verifying that the application schema matches the stored data. This should be separate from the database schema version that we store currently. It should be forward-compatible for...
Right now our user query parser and our content-disposition parser use lots of raw pointer manipulation. This is obviously a bad idea. One example of a parser that is designed...
We currently support a variety of database back-ends, mainly MDB and LevelDB. Currently these on-disk representations don't conflict, meaning that if you try to use the wrong one, you'll just...
When we detect links in uploaded Markdown or plain text files, we add those links to the meta-files we generate. However, we don't detect duplicates. Because of the structure of...