Extended the functionalities to +, and * for lists.

Author: AlexandreDoucet

lua/render-markdown/integ/source.lua

@@ -2,6 +2,29 @@ local manager = require('render-markdown.manager')
 local state = require('render-markdown.state')
 local util = require('render-markdown.core.util')
 
+local function get_list_prefix(buf, row)
+    local line = vim.fn.getline(row + 1) -- Get the current line (rows are 1-indexed in Vim)
+    local prev_line = vim.fn.getline(row)
+    local first_non_white = string.match(line, '^%s*(.)') -- Find first non-white character
+    -- List of possible markers to check
+
+    local first_non_white_prev = string.match(prev_line, '^%s*(.)')
+    local list_prefix = ''
+    local markers = { '-', '*', '+' }
+    if vim.tbl_contains(markers, first_non_white) or first_non_white == '[' then
+        list_prefix = ''
+    else
+        for _, marker in ipairs(markers) do
+            if first_non_white_prev == marker then
+                -- Set the list prefix based on the matched marker
+                list_prefix = marker .. ' '
+                break
+            end
+        end
+    end
+    return list_prefix
+end
+
 ---@class render.md.Source
 local M = {}
 
@@ -35,16 +58,9 @@ function M.items(buf, row, col)
             table.insert(items, M.item(component.raw, component.rendered, nil))
         end
     elseif vim.tbl_contains({ 'list_item', 'list_marker_minus' }, node_type) then
-        local line = vim.fn.getline(row + 1) -- Get the current line (rows are 1-indexed in Vim)
-        local first_non_white = string.match(line, '^%s*(.)') -- Find first non-white character
-        local list_prefix = '- '
-        -- Check if the first non-white character is a '-'
-        if first_non_white == '-' then
-            list_prefix = ''
-        end
-
         local checkbox = config.checkbox
 
+        local list_prefix = get_list_prefix(buf, row)
         table.insert(
             items,
             M.item(list_prefix .. (checkbox.unchecked.raw or '[ ]'), checkbox.unchecked.icon, 'unchecked')