generated from eblume/project-template
Erich Blume
9249ca46a1
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Build / validate (pull_request) Failing after 4m13s
Pressing <CR> on a [[wiki-link]] whose target doesn't exist now creates a doc with that title and opens it (the zettelkasten gesture), and materializes the source's backlink: if the source has unsaved edits, saving re-extracts and links it (and persists the edits); otherwise the wiki link is added directly (a no-op re-save wouldn't re-extract). Adds :Heph doc <title> to create a standalone wiki entry. e2e covers both the saved-source and just-typed-source paths. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
78 lines
2.9 KiB
Lua
78 lines
2.9 KiB
Lua
--- `[[wiki-link]]` parsing and following (tech-spec §8).
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---
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--- The cursor grammar mirrors `heph-core`'s `extract.rs`: a span `[[target]]`
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--- or `[[target|display]]`, where the resolvable name is everything left of the
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--- first `|`, trimmed. Resolution goes through `node.resolve` (exact, the same
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--- mapping that materializes stored `wiki` links) — never fuzzy `search`, which
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--- would mis-jump.
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local rpc = require("heph.rpc")
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local util = require("heph.util")
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local M = {}
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--- The wiki target under the cursor on the current line, or nil. Scans for the
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--- `[[...]]` span that contains the cursor column.
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function M.target_under_cursor()
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local line = vim.api.nvim_get_current_line()
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local col = vim.api.nvim_win_get_cursor(0)[2] + 1 -- 1-based byte column
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local from = 1
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while true do
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local open_s, open_e = line:find("[[", from, true)
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if not open_s then
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return nil
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end
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local close_s, close_e = line:find("]]", open_e + 1, true)
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if not close_s then
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return nil
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end
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if col >= open_s and col <= close_e then
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local inner = line:sub(open_e + 1, close_s - 1)
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local target = inner:match("^([^|]*)") or ""
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target = target:gsub("^%s+", ""):gsub("%s+$", "")
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return (#target > 0) and target or nil
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end
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from = close_e + 1
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end
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end
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--- Follow the `[[link]]` under the cursor to its node, **creating** the target
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--- doc if it doesn't exist yet (the zettelkasten follow-or-create gesture). The
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--- newly-created doc resolves the source's previously-unresolved wiki-link, so
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--- re-saving the source materializes the backlink.
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function M.follow()
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local target = M.target_under_cursor()
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if not target then
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util.notify("no [[link]] under cursor", vim.log.levels.WARN)
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return
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end
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local node = rpc.call("node.resolve", { title = target })
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if not node then
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node = rpc.call("node.create", { kind = "doc", title = target, body = "" })
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util.notify("created [[" .. target .. "]]")
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-- Materialize the source's wiki-link to the new doc — it was unresolved when
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-- the source was saved, so extraction skipped it (tech-spec §5). If the
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-- source has unsaved edits, saving re-extracts and materializes it (and
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-- persists the edits); otherwise add the link directly (a no-op re-save
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-- wouldn't re-extract).
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local src = vim.api.nvim_get_current_buf()
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local src_id = vim.b[src].heph_node_id
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if src_id then
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if vim.bo[src].modified then
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pcall(require("heph.node").write, src, vim.api.nvim_buf_get_name(src))
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else
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pcall(rpc.call, "links.add", { src = src_id, dst = node.id, link_type = "wiki" })
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end
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end
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end
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require("heph.node").open(node.id)
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end
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--- Attach the buffer-local `<CR>` follow keymap (only on heph:// buffers).
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function M.attach(buf)
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vim.keymap.set("n", "<CR>", function()
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M.follow()
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end, { buffer = buf, desc = "heph: follow [[link]]" })
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end
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return M
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