Merge pull request #2 from arne314/dev

V1.0
2026-01-01 05:24:24 -05:00 · 2024-12-14 23:30:16 +01:00
parent 229516d116 9ed884fdac
commit b201e122de
10 changed files with 278 additions and 182 deletions
--- a/README.md
+++ b/README.md
@@ -0,0 +1,56 @@
+# Typstar
+Neovim plugin for efficient note taking in typst
+
+## Features
+- Powerful autosnippets using [LuaSnip](https://github.com/L3MON4D3/LuaSnip/) and [Tree-sitter](https://tree-sitter.github.io/) (inspired by [fastex.nvim](https://github.com/lentilus/fastex.nvim))
+- Easy insertion of drawings using [Obsidian Excalidraw](https://github.com/zsviczian/obsidian-excalidraw-plugin)
+- \[WIP\] Export of [Anki](https://apps.ankiweb.net/) flashcards
+
+## Usage
+
+### Snippets
+Use `:TypstarToggleSnippets` to toggle all snippets at any time.
+Available snippets can mostly be intuitively derived from [here](././lua/typstar/snippets), they include:
+
+- Alphanumeric characters: `:<char>` &#8594; `$<char>$ ` in markup (e.g. `:X` &#8594; `$X$ `, `:5` &#8594; `$5$ `)
+- Greek letters: `;<latin>` &#8594; `<greek>` in math and `$<greek>$ ` in markup (e.g. `;a` &#8594; `alpha`/`$alpha$ `)
+- Common indices (numbers and letters `i-m`): `<letter><index>` &#8594; `<letter>_<index>` in math and `$<letter>$<index> ` &#8594; `$<letter>_<index>$ ` in markup (e.g `A314` &#8594; `A_314`, `$alpha$n ` &#8594; `$alpha_n$ `)
+- Wrapping of any mathematical expression (see [operations](./lua/typstar/snippets/visual.lua), works nested, multiline and in visual mode via the [selection key](#installation)): `<expression><operation>` &#8594; `<operation>(<expression>)` (e.g. `(a^2+b^2)rt` &#8594; `sqrt(a^2+b^2)`, `lambdatd` &#8594; `tilde(lambda)`, `(1+1)sQ` &#8594; `[1+1]`, `(1+1)sq` &#8594; `[(1+1)]`)
+- Matrices: `<size>ma` and `<size>lma` (e.g. `23ma` &#8594; 2x3 matrix)
+- [ctheorems shorthands](./lua/typstar/snippets/document.lua) (e.g. `tem` &#8594; empty theorem, `exa` &#8594; empty example)
+- [Many shorthands](./lua/typstar/snippets/math.lua) for mathematical expressions
+
+Note that you can enable and disable collections of snippets in the [config](#configuration).
+
+### Excalidraw
+Use `:TypstarInsertExcalidraw` to create a new drawing using the configured template, insert a figure displaying it and open it in Obsidian.
+To open an inserted drawing in Obsidian, simply run `:TypstarOpenExcalidraw` while your cursor is on a line referencing the drawing.
+
+### Anki
+WIP
+
+## Installation
+Install the plugin in neovim and set the `typstarRoot` config or alternatively clone typstar into `~/typstar`.
+```lua
+require('typstar').setup({
+  typstarRoot = '/path/to/typstar/repo' -- depending on your nvim plugin system
+})
+```
+
+### Snippets
+1. Install [LuaSnip](https://github.com/L3MON4D3/LuaSnip/), set `enable_autosnippets = true` and set a visual mode selection key (e.g. `store_selection_keys = '<Tab>'`) in the configuration
+2. Install [jsregexp](https://github.com/kmarius/jsregexp) as described [here](https://github.com/L3MON4D3/LuaSnip/blob/master/DOC.md#transformations) (running `:lua require('jsregexp')` in nvim should not result in an error)
+3. Install [nvim-treesitter](https://github.com/nvim-treesitter/nvim-treesitter) and run `:TSInstall typst`
+4. Optional: Setup [ctheorems](https://typst.app/universe/package/ctheorems/) with names like [here](./lua/typstar/snippets/document.lua)
+
+### Excalidraw
+1. Install [Obsidian](https://obsidian.md/) and create a vault in your typst note taking directory
+2. Install the [obsidian-excalidraw-plugin](https://github.com/zsviczian/obsidian-excalidraw-plugin) and enable `Auto-export SVG` (in plugin settings at `Embedding Excalidraw into your Notes and Exporting > Export Settings > Auto-export Settings`)
+3. Have the `xdg-open` command working or set a different command at `uriOpenCommand` in the [config](#configuration)
+
+### Anki
+WIP
+
+## Configuration
+Configuration options can be intuitively derived from the table [here](./lua/typstar/config.lua).
+
--- a/lua/typstar/autosnippets.lua
+++ b/lua/typstar/autosnippets.lua
@@ -43,13 +43,14 @@ function M.ri(insert_node_id)
    return luasnip.function_node(function(args) return args[1][1] end, insert_node_id)
 end

-function M.snip(trigger, expand, insert, condition, priority)
+function M.snip(trigger, expand, insert, condition, priority, wordTrig)
    priority = priority or 1000
    return luasnip.snippet(
        {
            trig = trigger,
            trigEngine = M.engine,
            trigEngineOpts = { condition = condition },
+            wordTrig = wordTrig,
            priority = priority,
            snippetType = 'autosnippet'
        },
--- a/lua/typstar/config.lua
+++ b/lua/typstar/config.lua
@@ -5,12 +5,14 @@ local default_config = {
    excalidraw = {
        assetsDir = 'assets',
        filename = 'drawing-%Y-%m-%d-%H-%M-%S',
+        fileExtension = '.excalidraw.md',
        fileExtensionInserted = '.excalidraw.svg',
-        obsidianOpenConfig = nil,
+        uriOpenCommand = 'xdg-open', -- set depending on OS
+        templatePath = nil,
    },
    snippets = {
        enable = true,
-        modules = {
+        modules = { -- enable modules from ./snippets
            'document',
            'letters',
            'math',
@@ -22,8 +24,10 @@ local default_config = {

 function M.merge_config(args)
    M.config = vim.tbl_deep_extend('force', default_config, args or {})
-    M.config.excalidraw.obsidianOpenConfig = M.config.excalidraw.obsidianOpenConfig or
-        M.config.typstarRoot .. '/res/obsidian_open_config_example.json'
+    M.config.excalidraw.templatePath = M.config.excalidraw.templatePath or
+        {
+            ['%.excalidraw%.md$'] = M.config.typstarRoot .. '/res/excalidraw_template.excalidraw.md',
+        }
 end

 M.merge_config(nil)
--- a/lua/typstar/excalidraw.lua
+++ b/lua/typstar/excalidraw.lua
@@ -2,32 +2,42 @@ local M = {}
 local config = require('typstar.config')
 local utils = require('typstar.utils')

-
 local cfg = config.config.excalidraw
 local affix = [[
 #figure(
-    image("%s"),
+  image("%s"),
 )
 ]]

-local function launch_obsidian_open(path)
+local function launch_obsidian(path)
    print(string.format('Opening %s in Excalidraw', path))
-    utils.run_shell_command('python3 ' ..
-        config.config.typstarRoot .. '/python/obsidian_open.py ' ..
-        path .. ' --config ' .. cfg.obsidianOpenConfig)
+    utils.run_shell_command(string.format('%s "obsidian://open?path=%s"', cfg.uriOpenCommand, utils.urlencode(path)))
 end

-
 function M.insert_drawing()
    local assets_dir = vim.fn.expand('%:p:h') .. '/' .. cfg.assetsDir
+    local filename = os.date(cfg.filename)
+    local path = assets_dir .. '/' .. filename .. cfg.fileExtension
+    local path_inserted = cfg.assetsDir .. '/' .. filename .. cfg.fileExtensionInserted
+
    if vim.fn.isdirectory(assets_dir) == 0 then
        vim.fn.mkdir(assets_dir, 'p')
    end
-    local filename = os.date(cfg.filename)
-    local path = assets_dir .. '/' .. filename .. '.excalidraw.md'
-    local path_inserted = cfg.assetsDir .. '/' .. filename .. cfg.fileExtensionInserted
-    utils.insert_snippet(string.format(affix, path_inserted))
-    launch_obsidian_open(path)
+    local found_match = false
+    for pattern, template_path in pairs(cfg.templatePath) do
+        if string.match(path, pattern) then
+            found_match = true
+            utils.run_shell_command(string.format('cat %s > %s', template_path, path)) -- don't copy file metadata
+            break
+        end
+    end
+    if not found_match then
+        print('No matching template found for the path: ' .. path)
+        return
+    end
+
+    utils.insert_text_block(string.format(affix, path_inserted))
+    launch_obsidian(path)
 end

 function M.open_drawing()
@@ -35,7 +45,7 @@ function M.open_drawing()
    local path = vim.fn.expand('%:p:h') ..
        '/' .. string.match(line, '"(.*)' .. string.gsub(cfg.fileExtensionInserted, '%.', '%%%.')) ..
        '.excalidraw.md'
-    launch_obsidian_open(path)
+    launch_obsidian(path)
 end

 return M
--- a/lua/typstar/snippets/letters.lua
+++ b/lua/typstar/snippets/letters.lua
@@ -1,60 +1,92 @@
+local ls = require('luasnip')
+local d = ls.dynamic_node
+local s = ls.snippet_node
+local t = ls.text_node
 local helper = require('typstar.autosnippets')
 local snip = helper.snip
 local cap = helper.cap
 local math = helper.in_math
 local markup = helper.in_markup

+
 local letter_snippets = {}
-local greek_letters = {
-    { 'a', 'alpha' }, { 'A', 'Alpha' },
-    { 'b', 'beta' }, { 'B', 'Beta' },
-    { 'c', 'chi' }, { 'C', 'Chi' },
-    { 'd', 'delta' }, { 'D', 'Delta' },
-    { 'e', 'epsilon' }, { 'E', 'Epsilon' },
-    { 'g', 'gamma' }, { 'G', 'Gamma' },
-    { 'h', 'phi' }, { 'H', 'Phi' },
-    { 'i', 'iotta' }, { 'I', 'Iotta' },
-    { 'j', 'theta' }, { 'J', 'Theta' },
-    { 'k', 'kappa' }, { 'K', 'Kappa' },
-    { 'l', 'lambda' }, { 'L', 'Lambda' },
-    { 'm', 'mu' }, { 'M', 'Mu' },
-    { 'n', 'nu' }, { 'N', 'Nu' },
-    { 'o', 'omega' }, { 'O', 'Omega' },
-    { 'p', 'pi' }, { 'P', 'Pi' },
-    { 'q', 'eta' }, { 'Q', 'Eta' },
-    { 'r', 'rho' }, { 'R', 'Rho' },
-    { 's', 'sigma' }, { 'S', 'Sigma' },
-    { 't', 'tau' }, { 'T', 'Tau' },
-    { 'x', 'xi' }, { 'X', 'xi' },
-    { 'z', 'zeta' }, { 'Z', 'Zeta' },
+local greek_letters_map = {
+    ['a'] = 'alpha',
+    ['b'] = 'beta',
+    ['c'] = 'chi',
+    ['d'] = 'delta',
+    ['e'] = 'epsilon',
+    ['g'] = 'gamma',
+    ['h'] = 'phi',
+    ['i'] = 'iotta',
+    ['j'] = 'theta',
+    ['k'] = 'kappa',
+    ['l'] = 'lambda',
+    ['m'] = 'mu',
+    ['n'] = 'nu',
+    ['o'] = 'omega',
+    ['p'] = 'pi',
+    ['q'] = 'eta',
+    ['r'] = 'rho',
+    ['s'] = 'sigma',
+    ['t'] = 'tau',
+    ['x'] = 'xi',
+    ['z'] = 'zeta',
 }
-local latin_letters = { 'f', 'u', 'v', 'w', 'y' } -- remaining ones are added dynamically
-local common_indices = { '\\d+', 'i', 'j', 'k', 'n' }
+local greek_letters = {}
+local greek_keys = {}
+local common_indices = { '\\d+', '[i-n]' }
+local index_conflicts = { 'in', 'pi', 'xi' }
+local index_conflicts_set = {}
+local trigger_latin = '[A-Za-z0-9]'
+local trigger_greek = ''
+local trigger_index_pre = ''
+local trigger_index_post = ''

-for _, letter in ipairs({ unpack(latin_letters) }) do
-    table.insert(latin_letters, letter:upper())
+local upper_first = function(str)
+    return str:sub(1, 1):upper() .. str:sub(2, -1)
 end

-local generate_index_snippets = function(letter)
-    for _, index in pairs(common_indices) do
-        table.insert(letter_snippets,
-            snip(letter .. '(' .. index .. ') ', letter .. '_(<>) ', { cap(1) }, math, 200))
-        table.insert(letter_snippets,
-            snip('\\$' .. letter .. '\\$(' .. index .. ') ', '$' .. letter .. '_(<>)$ ', { cap(1) }, markup, 200))
+local greek_full = {}
+for latin, greek in pairs(greek_letters_map) do
+    greek_full[latin] = greek
+    greek_full[latin:upper()] = upper_first(greek)
+    table.insert(greek_letters, greek)
+    table.insert(greek_letters, upper_first(greek))
+    table.insert(greek_keys, latin)
+    table.insert(greek_keys, latin:upper())
+end
+
+for _, conflict in ipairs(index_conflicts) do
+    index_conflicts_set[conflict] = true
+end
+
+greek_letters_map = greek_full
+trigger_greek = table.concat(greek_keys, '|')
+trigger_index_pre = trigger_latin .. '|' .. table.concat(greek_letters, '|')
+trigger_index_post = table.concat(common_indices, '|')
+
+local get_greek = function(_, snippet)
+    return s(nil, t(greek_letters_map[snippet.captures[1]]))
+end
+
+local get_index = function(_, snippet)
+    local letter, index = snippet.captures[1], snippet.captures[2]
+    local trigger = letter .. index
+    if index_conflicts_set[trigger] then
+        return s(nil, t(trigger))
    end
+    return s(nil, t(letter .. '_' .. index))
 end

-for _, val in pairs(greek_letters) do
-    table.insert(letter_snippets, snip(';' .. val[1], val[2], {}, math))
-    table.insert(letter_snippets, snip(';' .. val[1], '$' .. val[2] .. '$ ', {}, markup))
-    generate_index_snippets(val[2])
-    table.insert(latin_letters, val[1])
-end
-
-for _, letter in pairs(latin_letters) do
-    generate_index_snippets(letter)
-    table.insert(letter_snippets, snip(':' .. letter, '$' .. letter .. '$ ', {}, markup))
-end
+table.insert(letter_snippets, snip(':(' .. trigger_latin .. ')', '$<>$ ', { cap(1) }, markup))
+table.insert(letter_snippets, snip(';(' .. trigger_greek .. ')', '$<>$ ', { d(1, get_greek) }, markup))
+table.insert(letter_snippets, snip(';(' .. trigger_greek .. ')', '<> ', { d(1, get_greek) }, math))
+table.insert(letter_snippets,
+    snip('\\$(' .. trigger_index_pre .. ')\\$' .. '(' .. trigger_index_post .. ') ',
+        '$<>$ ', { d(1, get_index) }, markup, 500))
+table.insert(letter_snippets,
+    snip('(' .. trigger_index_pre .. ')' .. '(' .. trigger_index_post .. ') ', '<> ', { d(1, get_index) }, math, 200))

 return {
    unpack(letter_snippets)
--- a/lua/typstar/snippets/math.lua
+++ b/lua/typstar/snippets/math.lua
@@ -19,7 +19,6 @@ return {
    snip('een', 'exists epsilon>>0 ', {}, math),

    -- boolean logic
-    snip('an', 'and ', {}, math),
    snip('no', 'not ', {}, math),

    -- relations
@@ -52,7 +51,7 @@ return {
    snip('nn', 'sect ', {}, math),
    snip('uu', 'union ', {}, math),
    snip('bnn', 'sect.big ', {}, math, 1100),
-    snip('buu', 'untion.big ', {}, math, 1100),
+    snip('buu', 'union.big ', {}, math, 1100),
    snip('swo', 'without ', {}, math),

    -- misc
@@ -62,11 +61,10 @@ return {
    snip('iso', 'tilde.equiv ', {}, math),
    snip('rrn', 'RR^n ', {}, math),
    snip('cc', 'cases(\n\t<>\n)\\', { i(1, '1') }, math),
-    snip('pi', 'pi ', {}, math),
-    snip('in', 'in ', {}, math),
    snip('(.*)iv', '<>^(-1)', { cap(1) }, math),
-    snip('(.*)sr', '<>^(2)', { cap(1) }, math),
-    snip('(.*)rd', '<>^(<>)', { cap(1), i(1, 'n') }, math),
+    snip('(.*)sr', '<>^2', { cap(1) }, math),
+    snip('(.*)jj', '<>_(<>)', { cap(1), i(1, 'n') }, math),
+    snip('(.*)kk', '<>^(<>)', { cap(1), i(1, 'n') }, math),

    snip('ddx', '(d <>)(d <>)', { i(1, 'f'), i(2, 'x') }, math),
    snip('it', 'integral_(<>)^(<>)', { i(1, 'a'), i(2, 'b') }, math),
--- a/lua/typstar/snippets/visual.lua
+++ b/lua/typstar/snippets/visual.lua
@@ -1,72 +1,90 @@
+local ts = vim.treesitter
 local ls = require('luasnip')
-local i = ls.insert_node
 local d = ls.dynamic_node
-local f = ls.function_node
+local i = ls.insert_node
+local s = ls.snippet_node
+local t = ls.text_node

+local utils = require('typstar.utils')
 local helper = require('typstar.autosnippets')
 local math = helper.in_math
 local snip = helper.snip
-local cap = helper.cap
-local get_visual = helper.get_visual

 local snippets = {}
-local operations = { -- boolean denotes whether an additional layer of () brackets should be removed
-    { 'vi',  '1/(',         ')', true },
-    { 'bb',  '(',           ')', false },
-    { 'sq',  '[',           ']', true },
-    { 'abs', 'abs(',        ')', false },
-    { 'ul',  'underline(',  ')', false },
-    { 'ol',  'overline(',   ')', false },
-    { 'ub',  'underbrace(', ')', false },
-    { 'ob',  'overbrace(',  ')', false },
-    { 'ht',  'hat(',        ')', false },
-    { 'br',  'macron(',     ')', false },
-    { 'dt',  'dot(',        ')', false },
-    { 'ci',  'circle(',     ')', false },
-    { 'td',  'tilde(',      ')', false },
-    { 'nr',  'norm(',       ')', false },
-    { 'vv',  'vec(',        ')', false },
-    { 'rt',  'sqrt(',       ')', false },
+local operations = {                            -- first boolean: existing brackets should be kept; second boolean: brackets should be added
+    { 'vi',  '1/',         '',  true,  false },
+    { 'bb',  '(',          ')', true,  false }, -- add round brackets
+    { 'sq',  '[',          ']', true,  false }, -- add square brackets
+    { 'bB',  '(',          ')', false, false }, -- replace with round brackets
+    { 'sQ',  '[',          ']', false, false }, -- replace with square brackets
+    { 'BB',  '',           '',  false, false }, -- remove brackets
+    { 'ss',  '"',          '"', false, false },
+    { 'abs', 'abs',        '',  true,  true },
+    { 'ul',  'underline',  '',  true,  true },
+    { 'ol',  'overline',   '',  true,  true },
+    { 'ub',  'underbrace', '',  true,  true },
+    { 'ob',  'overbrace',  '',  true,  true },
+    { 'ht',  'hat',        '',  true,  true },
+    { 'br',  'macron',     '',  true,  true },
+    { 'dt',  'dot',        '',  true,  true },
+    { 'ci',  'circle',     '',  true,  true },
+    { 'td',  'tilde',      '',  true,  true },
+    { 'nr',  'norm',       '',  true,  true },
+    { 'vv',  'vec',        '',  true,  true },
+    { 'rt',  'sqrt',       '',  true,  true },
 }

-local wrap_brackets = function(args, snippet, val)
-    local captured = snippet.captures[1]
-    local bracket_types = { [')'] = '(', [']'] = '[', ['}'] = '{' }
-    local closing_bracket = captured:sub(-1, -1)
-    local opening_bracket = bracket_types[closing_bracket]
+local ts_wrap_query = ts.query.parse('typst', '[(call) (ident) (letter) (number)] @wrap')
+local ts_wrapnobrackets_query = ts.query.parse('typst', '(group) @wrapnobrackets')

-    if opening_bracket == nil then
-        return captured
-    end
-
-    local n_brackets = 0
-    local char
-
-    for i = #captured, 1, -1 do
-        char = captured:sub(i, i)
-        if char == closing_bracket then
-            n_brackets = n_brackets + 1
-        elseif char == opening_bracket then
-            n_brackets = n_brackets - 1
-        end
-
-        if n_brackets == 0 then
-            local remove_additional = val[4] and opening_bracket == '('
-            return captured:sub(1, i - 1) .. val[2]
-                .. captured:sub(i + (remove_additional and 1 or 0), -(remove_additional and 2 or 1)) .. val[3]
+local process_ts_query = function(bufnr, cursor, query, root, insert1, insert2, cut_offset)
+    for _, match, _ in query:iter_matches(root, bufnr, cursor[1], cursor[1] + 1) do
+        if match then
+            local start_row, start_col, end_row, end_col = utils.treesitter_match_start_end(match)
+            if end_row == cursor[1] and end_col == cursor[2] then
+                vim.schedule(function() -- to not interfere with luasnip
+                    local cursor_offset = 0
+                    local old_len1, new_len1 = utils.insert_text(
+                        bufnr, start_row, start_col, insert1, 0, cut_offset)
+                    if start_row == cursor[1] then
+                        cursor_offset = cursor_offset + (new_len1 - old_len1)
+                    end
+                    local old_len2, new_len2 = utils.insert_text(
+                        bufnr, end_row, cursor[2] + cursor_offset, insert2, cut_offset, 0)
+                    if end_row == cursor[1] then
+                        cursor_offset = cursor_offset + (new_len2 - old_len2)
+                    end
+                    vim.api.nvim_win_set_cursor(0, { cursor[1] + 1, cursor[2] + cursor_offset })
+                end)
+                return true
+            end
        end
    end
-    return captured
+    return false
+end
+
+local smart_wrap = function(args, parent, old_state, expand)
+    local bufnr = vim.api.nvim_get_current_buf()
+    local cursor = utils.get_cursor_pos()
+    local root = utils.get_treesitter_root(bufnr)
+
+    if process_ts_query(bufnr, cursor, ts_wrapnobrackets_query, root, expand[2], expand[3], expand[4] and 0 or 1) then
+        return s(nil, t())
+    end
+
+    local expand1 = expand[5] and expand[2] .. '(' or expand[2]
+    local expand2 = expand[5] and expand[3] .. ')' or expand[3]
+    if process_ts_query(bufnr, cursor, ts_wrap_query, root, expand1, expand2) then
+        return s(nil, t())
+    end
+    if #parent.env.LS_SELECT_RAW > 0 then
+        return s(nil, t(expand1 .. table.concat(parent.env.LS_SELECT_RAW) .. expand2))
+    end
+    return s(nil, { t(expand1), i(1, '1+1'), t(expand2) })
 end

 for _, val in pairs(operations) do
-    table.insert(snippets, snip(val[1], val[2] .. '<>' .. val[3], { d(1, get_visual) }, math))
-    table.insert(snippets, snip('[\\s$]' .. val[1], val[2] .. '<>' .. val[3], { i(1, '1') }, math))
-    table.insert(snippets,
-        snip('([\\w]+)'
-            .. val[1], val[2] .. '<>' .. val[3], { cap(1) }, math, 900))
-    table.insert(snippets,
-        snip('(.*[\\)|\\]|\\}])' .. val[1], '<>', { f(wrap_brackets, {}, { user_args = { val } }), nil }, math, 1100))
+    table.insert(snippets, snip(val[1], '<>', { d(1, smart_wrap, {}, { user_args = { val } }) }, math, 1000, false))
 end

 return {
--- a/lua/typstar/utils.lua
+++ b/lua/typstar/utils.lua
@@ -7,28 +7,60 @@ function M.get_cursor_pos()
    return { cursor_row, cursor_col }
 end

-function M.insert_snippet(snip)
+function M.insert_text(bufnr, row, col, snip, begin_offset, end_offset)
+    begin_offset = begin_offset or 0
+    end_offset = end_offset or 0
+    local line = vim.api.nvim_buf_get_lines(bufnr, row, row + 1, true)[1]
+    local old_len = #line
+    line = line:sub(1, col - begin_offset) .. snip .. line:sub(col + 1 + end_offset, #line)
+    vim.api.nvim_buf_set_lines(bufnr, row, row + 1, false, { line })
+    return old_len, #line
+end
+
+function M.insert_text_block(snip)
    local line_num = M.get_cursor_pos()[1] + 1
    local lines = {}
    for line in snip:gmatch '[^\r\n]+' do
        table.insert(lines, line)
    end
-    vim.api.nvim_buf_set_lines(0, line_num, line_num, false, lines)
+    vim.api.nvim_buf_set_lines(vim.api.nvim_get_current_buf(), line_num, line_num, false, lines)
 end

 function M.run_shell_command(cmd)
    vim.fn.jobstart(cmd)
 end

+function M.char_to_hex(c)
+    return string.format("%%%02X", string.byte(c))
+end
+
+function M.urlencode(url)
+    if url == nil then
+        return ''
+    end
+    url = string.gsub(url, '\n', '\r\n')
+    url = string.gsub(url, '([^%w _%%%-%.~])', M.char_to_hex)
+    url = string.gsub(url, ' ', '%%20')
+    return url
+end
+
+function M.get_treesitter_root(bufnr)
+    return ts.get_parser(bufnr):parse()[1]:root()
+end
+
+function M.treesitter_match_start_end(match)
+    local start_row, start_col, _, _ = match[1]:range()
+    local _, _, end_row, end_col     = match[#match]:range()
+    return start_row, start_col, end_row, end_col
+end
+
 function M.cursor_within_treesitter_query(query, match_tolerance, cursor)
    cursor = cursor or M.get_cursor_pos()
    local bufnr = vim.api.nvim_get_current_buf()
-    local root = ts.get_parser(bufnr):parse()[1]:root()
-    for _, match, _ in query:iter_matches(root, bufnr, cursor[1], cursor[1] + 1) do
+    for _, match, _ in query:iter_matches(M.get_treesitter_root(bufnr), bufnr, cursor[1], cursor[1] + 1) do
        if match then
-            local start_row, start_col, _, _ = match[1]:range()
-            local _, _, end_row, end_col     = match[#match]:range()
-            local matched                    = M.cursor_within_coords(cursor, start_row, end_row, start_col, end_col,
+            local start_row, start_col, end_row, end_col = M.treesitter_match_start_end(match)
+            local matched = M.cursor_within_coords(cursor, start_row, end_row, start_col, end_col,
                match_tolerance)
            if matched then
                return true
--- a/python/obsidian_open.py
+++ b/python/obsidian_open.py
@@ -1,52 +0,0 @@
-import argparse
-import json
-import os
-import re
-import urllib.parse
-
-argument_parser = argparse.ArgumentParser(
-    formatter_class=argparse.RawDescriptionHelpFormatter,
-    prog="Obsidian File Opener",
-    description="Open and create files in Obsidian with template support.",
-    epilog="""
-    \n\n
-    Template config file format (json):  
-
-    {
-        "filename_regex": "template_path"
-    }
-
-    example:
-    {
-        "\\\\.md$": "~/Templates/default.md"
-        "\\\\.excalidraw\\\\.md$": "~/Templates/excalidraw.md"
-    }
-    """,
-)
-argument_parser.add_argument("file", help="file to open/create")
-argument_parser.add_argument(
-    "-c", "--config", help="path to json template config file", required=True
-)
-args = argument_parser.parse_args()
-path = os.path.abspath(args.file)
-url_params = {
-    "path": path,
-}
-
-if not os.path.exists(path):
-    filename = os.path.basename(path)
-    with open(args.config) as f:
-        config = json.loads(f.read())
-    template_content = ""
-
-    for regex, template in config.items():
-        if re.search(regex, filename):
-            print(f"Template regex is matching: {regex}")
-            with open(os.path.expanduser(template), encoding="utf-8") as f:
-                template_content = f.read()
-            break
-    with open(path, "w", encoding="utf-8") as f:
-        f.write(template_content)
-
-encoded = urllib.parse.urlencode(url_params, quote_via=urllib.parse.quote)
-os.system(f"xdg-open obsidian://open?{encoded}")
--- a/res/obsidian_open_config_example.json
+++ b/res/obsidian_open_config_example.json
@@ -1,3 +0,0 @@
-{
-    "\\.excalidraw\\.md$": "~/typstar/res/excalidraw_template.excalidraw.md"
-}