Breaking Change: more configurable table behavior

# Details

* fat_tables option removed
* table_style option added
* If fat_tables option was not being set default behavior
  remains the same
* If fat_tables option was set to false setting table_style
  option to 'normal' will result in the same behavior
* Setting table_style to 'none' is new behavior and will stop
  rendering markdown tables: #21

Author: MeanderingProgrammer

README.md

@@ -133,8 +133,11 @@ require('render-markdown').setup({
         -- conceallevel used for buffer when being rendered
         rendered = 3,
     },
-    -- Add a line above and below tables to complete look, ends up like a window
-    fat_tables = true,
+    -- Determines how tables are rendered
+    --  full: adds a line above and below tables + normal behavior
+    --  normal: renders the rows of tables
+    --  none: disables rendering, use this if you prefer having cell highlights
+    table_style = 'full',
     -- Define the highlight groups to use when rendering various components
     highlights = {
         heading = {

doc/render-markdown.txt

@@ -162,8 +162,11 @@ modified by the user.
             -- conceallevel used for buffer when being rendered
             rendered = 3,
         },
-        -- Add a line above and below tables to complete look, ends up like a window
-        fat_tables = true,
+        -- Determines how tables are rendered
+        --  full: adds a line above and below tables + normal behavior
+        --  normal: renders the rows of tables
+        --  none: disables rendering, use this if you prefer having cell highlights
+        table_style = 'full',
         -- Define the highlight groups to use when rendering various components
         highlights = {
             heading = {

lua/render-markdown/handler/markdown.lua

@@ -99,7 +99,7 @@ M.render = function(namespace, root, buf)
                 })
             end
         elseif capture == 'table' then
-            if state.config.fat_tables then
+            if state.config.table_style == 'full' then
                 local lines = vim.api.nvim_buf_get_lines(buf, start_row, end_row, false)
                 local table_head = list.first(lines)
                 local table_tail = list.last(lines)
@@ -123,28 +123,30 @@ M.render = function(namespace, root, buf)
                 end
             end
         elseif vim.tbl_contains({ 'table_head', 'table_delim', 'table_row' }, capture) then
-            local row = value:gsub('|', '│')
-            if capture == 'table_delim' then
-                -- Order matters here, in particular handling inner intersections before left & right
-                row = row:gsub('-', '─')
-                    :gsub(' ', '─')
-                    :gsub('─│─', '─┼─')
-                    :gsub('│─', '├─')
-                    :gsub('─│', '─┤')
-            end
+            if vim.tbl_contains({ 'full', 'normal' }, state.config.table_style) then
+                local row = value:gsub('|', '│')
+                if capture == 'table_delim' then
+                    -- Order matters here, in particular handling inner intersections before left & right
+                    row = row:gsub('-', '─')
+                        :gsub(' ', '─')
+                        :gsub('─│─', '─┼─')
+                        :gsub('│─', '├─')
+                        :gsub('─│', '─┤')
+                end
 
-            local highlight = highlights.table.head
-            if capture == 'table_row' then
-                highlight = highlights.table.row
-            end
+                local highlight = highlights.table.head
+                if capture == 'table_row' then
+                    highlight = highlights.table.row
+                end
 
-            local virt_text = { row, highlight }
-            vim.api.nvim_buf_set_extmark(buf, namespace, start_row, start_col, {
-                end_row = end_row,
-                end_col = end_col,
-                virt_text = { virt_text },
-                virt_text_pos = 'overlay',
-            })
+                local virt_text = { row, highlight }
+                vim.api.nvim_buf_set_extmark(buf, namespace, start_row, start_col, {
+                    end_row = end_row,
+                    end_col = end_col,
+                    virt_text = { virt_text },
+                    virt_text_pos = 'overlay',
+                })
+            end
         else
             -- Should only get here if user provides custom capture, currently unhandled
             logger.error('Unhandled markdown capture: ' .. capture)

lua/render-markdown/init.lua

@@ -48,7 +48,7 @@ local M = {}
 ---@field public checkbox? render.md.UserCheckbox
 ---@field public quote? string
 ---@field public conceal? render.md.UserConceal
----@field public fat_tables? boolean
+---@field public table_style? 'full'|'normal'|'none'
 ---@field public highlights? render.md.UserHighlights
 
 ---@param opts? render.md.UserConfig
@@ -106,7 +106,7 @@ function M.setup(opts)
             default = vim.opt.conceallevel:get(),
             rendered = 3,
         },
-        fat_tables = true,
+        table_style = 'full',
         highlights = {
             heading = {
                 backgrounds = { 'DiffAdd', 'DiffChange', 'DiffDelete' },

lua/render-markdown/state.lua

@@ -42,7 +42,7 @@
 ---@field public checkbox render.md.Checkbox
 ---@field public quote string
 ---@field public conceal render.md.Conceal
----@field public fat_tables boolean
+---@field public table_style 'full'|'normal'|'none'
 ---@field public highlights render.md.Highlights
 
 ---@class render.md.State