zettelkasten.nvim/README.md

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# Zettelkasten.nvim
To develop / debug:
start neovim with `nvim --cmd "set rtp+=$(pwd)" .` to automatically load the files in project dir as if they were on path
next up:
[ ] fix link following:
* [x] empty space (e.g. in link text, or link itself) disrupts link regex search
* [x] line-end following breaks if cursor is in the MIDDLE of the link
* [x] extract anchor from link/string (anchor.lua)
* [x] probably stop hardcoding anchor regex, make an option
* [ ] implement custom anchor creation function to go with custom regex
* [ ] opening zettel should use generated link table for full filename anchor search
* [x] need a default zettel directory to look in
* [ ] link following order should be:
* [x] look up & follow anchor
* [ ] look for filename in current dir (or relative/absolute link loc)
* [ ] implement fallback to filename in any of zettel subdirs
## TODO: needed functionality
* [ ] note creation (new anchor)
* [x] create anchor
* [ ] *unique* anchor creation
* [x] create link (md / wiki)
* [ ] note listing (anchors / titles, no anchor)
* [ ] list anchors
* [ ] list filenames
* [ ] link following (to existing anchor)
* [ ] fallback to filename if anchor invalid / not found
* [ ] link creation (to existing note)
* [ ] list existing
* [ ] create link (md / wiki)
* [ ] link switching (point to another existing note)
* [ ] note search (title / full-text)
* [ ] jump to zettel (open existing anchor)
* [ ] select by anchor
* [ ] select by (fuzzy) title match
* [ ] options
* [x] zettel anchor separator
* [x] zettel extension
* [x] link style (wiki/markdown)
* [ ] custom link style?
* [x] link detection/following (under word, next on line)
* [ ] recursive dir lookup for zettel
* [ ] zettel anchor regex
## TODO: nice-to-haves
* [ ] refactor parsers (md/wiki) to be tables of functions/regex in options, so e.g. valid link detection can call `options.parser.isValidLink(link)` or transformation `options.parser.styleLink(anchor, text)`
* [ ] use unified parser model (e.g. containing `turn-to-link()`, `parse-link()`) function
* [ ] enable custom parser supply
* [ ] completion engine (e.g. for `completion-nvim`, look in completion_buffers/completion-tags for reference)
* [ ] zettel caching for big directories
* [ ] backlinks (via rg for filename anchor?)
* [ ] keep tree of notes cached?
* [ ] zettel maintenance
* [ ] fix malformed anchors
* [ ] fix-link function which looks for most similar file to be found and renames file/link automatically (after confirmation)
* [ ] add missing anchors
* [ ] 'rename' anchor (goes against stability?)
* [ ] recognize duplicate anchors (in directory, when listing, etc)
* [ ] provide option to rename and automatically change backlinks
* [ ] zettel 'lens' (preview first headline + content of linked zettel through floating window etc, on keypress)
* [ ] support *both* md-style and wiki-style links at the same time
* [ ] file/directory exception list for gathering files, which will be ignored
* [ ] 'strict' mode *only* matching and following valid anchor links
## TODO: maintenance
* [ ] remove hard-coding of option vimnames in tests, now that we can dynamically change this through a single table
* anchor creation
* *must* be unique
* default: 10 digits, usually current date+time (YYMMDDHHmm)
* but, if multiple links created within one minute (or other circumstances), this would duplicate
* thus, duplicate-check before creating a new anchor
* if duplicated, generate first *non*-duplicated link (recursive?)
* try to move *backwards* through minutes not forward
* i.e. if 2030101200 exists move to 2030101159, 2030101158, ...
* if moving backwards, we do not take away id space from *future* note creation
* if moving forwards, every zettel created within a minute would delay next zettel creation *another* minute
## Options
atm:
```
anchor_separator = vim.g["zettel_anchor_separator"] or vim.b["zettel_anchor_separator"] or "_",
zettel_extension = vim.g["zettel_extension"] or vim.b["zettel_extension"] or ".md",
zettel_root = vim.g["zettel_root"] or vim.b["zettel_root"] or "~/documents/notes",
```