From 1cf300e2c67c84b1ae3acebc3567c2cc86d63e54 Mon Sep 17 00:00:00 2001
From: Yusaku Mandai <mandai.yusaku@gmail.com>
Date: Sun, 28 Dec 2025 22:29:54 +0900
Subject: [PATCH] nvim: add vim-slime

---
 nvim/lua/helper-ipython.lua | 35 +++++++++++++++++++++++++++++++++++
 nvim/lua/plugins.lua        | 19 +++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 nvim/lua/helper-ipython.lua

diff --git a/nvim/lua/helper-ipython.lua b/nvim/lua/helper-ipython.lua
new file mode 100644
index 0000000..a58feea
--- /dev/null
+++ b/nvim/lua/helper-ipython.lua
@@ -0,0 +1,35 @@
+local M = {}
+
+-- Detects the start and end lines of the current IPython cell.
+function M.detect_cell_range()
+   local cur = vim.fn.line(".")
+   local last = vim.fn.line("$")
+
+   -- Find the start of the cell by searching upwards for # %%
+   local start = cur
+   for l = cur, 1, -1 do
+      local line = vim.fn.getline(l)
+      if line:match("^%s*# %%%%") and l ~= cur then
+         start = l + 1
+         break
+      elseif l == 1 then
+         start = 1
+      end
+   end
+
+   -- Find the end of the cell by searching downwards for # %%
+   local finish = cur
+   for l = cur + 1, last do
+      local line = vim.fn.getline(l)
+      if line:match("^%s*# %%%%") then
+         finish = l - 1
+         break
+      elseif l == last then
+         finish = last
+      end
+   end
+
+   return start, finish
+end
+
+return M
diff --git a/nvim/lua/plugins.lua b/nvim/lua/plugins.lua
index 11c5539..6f06b7c 100644
--- a/nvim/lua/plugins.lua
+++ b/nvim/lua/plugins.lua
@@ -20,6 +20,25 @@ return {
       end,
    },
 
+   -- Sends buffer content to console REPL.
+   {
+      "jpalardy/vim-slime",
+      config = function()
+         vim.g.slime_target = "tmux"
+         vim.g.slime_python_ipython = 1
+         vim.g.slime_default_config = {
+            socket_name = "default",
+            target_pane = "{last}",
+         }
+         vim.g.slime_dont_ask_default = 1
+
+         vim.keymap.set("n", "<Leader>ip", function()
+            local s, e = require("helper-ipython").detect_cell_range()
+            vim.cmd(string.format("%d,%dSlimeSend", s, e))
+         end)
+      end,
+   },
+
    -- Lua library for nvim.
    { "nvim-lua/plenary.nvim" },