feat: support toggling inline and block latex individually

## Details

Request: #668

Adds `latex.inline` and `latex.block` which both default to true.
Switching one off (or both though that really would not make sense) will
result in those latex formulas no longer being rendered by this plugin.

Inline is defined as delimitted by `$` and block is delimitted by `$$`
(or more dollar signs).

Author: MeanderingProgrammer

CHANGELOG.md

@@ -12,6 +12,10 @@
 - allow rendering when window is in diff mode [#645](https://github.com/MeanderingProgrammer/render-markdown.nvim/issues/645)
   [629eb95](https://github.com/MeanderingProgrammer/render-markdown.nvim/commit/629eb9533ec989d9d5c6cab8f3ad5372422c24e0)
 - add snacks.nvim image as conflict if latex is enabled [dcb7751](https://github.com/MeanderingProgrammer/render-markdown.nvim/commit/dcb77511efb1665b5073d8396a0033b3e4d680f6)
+- improvements to testing setup [#666](https://github.com/MeanderingProgrammer/render-markdown.nvim/pull/666)
+  [#667](https://github.com/MeanderingProgrammer/render-markdown.nvim/pull/667)
+  [ae8e75f](https://github.com/MeanderingProgrammer/render-markdown.nvim/commit/ae8e75f098ace7447c725bf1f0493d57294ddbe2)
+  [7bb5e54](https://github.com/MeanderingProgrammer/render-markdown.nvim/commit/7bb5e54102cf140e12a7eb0f6ddf2f73c3b43922)
 
 ### Bug Fixes
 
@@ -25,11 +29,14 @@
 - conceal padding spaces in multi-backtick code spans per CommonMark spec [#635](https://github.com/MeanderingProgrammer/render-markdown.nvim/pull/635)
 - false positive link matching [#650](https://github.com/MeanderingProgrammer/render-markdown.nvim/issues/650)
   [ff2fcd6](https://github.com/MeanderingProgrammer/render-markdown.nvim/commit/ff2fcd6f2c7b69ae2c08ebfb003b644b0d8b9acb)
+- handle checkbox rendering in single line nested lists [#659](https://github.com/MeanderingProgrammer/render-markdown.nvim/issues/659)
+  [5adf089](https://github.com/MeanderingProgrammer/render-markdown.nvim/commit/5adf0895310c1904e5abfaad40a2baad7fe44a07)
 
 ### Collaborator Shoutouts
 
 - @qq3g7bad
 - @0x1b2c
+- @okuuva
 
 ## 8.12.0 (2026-03-08)
 

README.md

@@ -291,6 +291,10 @@ require('render-markdown').setup({
         -- Executable used to convert latex formula to rendered unicode.
         -- If a list is provided the commands run in order until the first success.
         converter = { 'utftex', 'latex2text' },
+        -- Render inline latex formulas.
+        inline = true,
+        -- Render block latex formulas.
+        block = true,
         -- Highlight for latex blocks.
         highlight = 'RenderMarkdownMath',
         -- Determines where latex formula is rendered relative to block.

doc/render-markdown.txt

@@ -358,6 +358,10 @@ Default Configuration ~
             -- Executable used to convert latex formula to rendered unicode.
             -- If a list is provided the commands run in order until the first success.
             converter = { 'utftex', 'latex2text' },
+            -- Render inline latex formulas.
+            inline = true,
+            -- Render block latex formulas.
+            block = true,
             -- Highlight for latex blocks.
             highlight = 'RenderMarkdownMath',
             -- Determines where latex formula is rendered relative to block.

lua/render-markdown/handler/latex.lua

@@ -35,14 +35,22 @@ function Handler:run(root, last)
     if not self.config.enabled then
         return {}
     end
+
     local cmds = env.commands(self.config.converter)
     if #cmds == 0 then
         log.add('debug', 'ConverterNotFound', self.config.converter)
         return {}
     end
+
     local node = Node.new(self.context.buf, root)
-    log.node('latex', node)
-    self.context.latex:add(node)
+    local count = str.chars(node.text, '$')
+    local include = (count <= 1 and self.config.inline)
+        or (count >= 2 and self.config.block)
+    if include then
+        log.node('latex', node)
+        self.context.latex:add(node)
+    end
+
     if last then
         local nodes = self.context.latex:get()
         local inputs = Handler.inputs(nodes)
@@ -58,6 +66,7 @@ function Handler:run(root, last)
             self:render(row, row_nodes)
         end
     end
+
     return self.marks:get()
 end
 

lua/render-markdown/health.lua

@@ -13,7 +13,7 @@ local state = require('render-markdown.state')
 local M = {}
 
 ---@private
-M.version = '8.12.17'
+M.version = '8.12.18'
 
 function M.check()
     M.start('versions')

lua/render-markdown/lib/node.lua

@@ -104,7 +104,7 @@ function Node:level(parent)
     if not node then
         return 0
     end
-    return str.level(vim.treesitter.get_node_text(node, self.buf))
+    return str.chars(vim.treesitter.get_node_text(node, self.buf), '#')
 end
 
 ---@param target string

lua/render-markdown/lib/str.lua

@@ -29,11 +29,12 @@ function M.sub(s, i, j)
     return result
 end
 
----number of hashtags at the start of the string
+---number of a specific character at the start of the string
 ---@param s string
+---@param ch string
 ---@return integer
-function M.level(s)
-    local match = s:match('^%s*(#+)')
+function M.chars(s, ch)
+    local match = s:match('^%s*(' .. vim.pesc(ch) .. '+)')
     return match and #match or 0
 end
 

lua/render-markdown/render/markdown/heading.lua

@@ -46,7 +46,7 @@ function Render:setup()
     if self.node.type == 'atx_heading' and self.config.atx then
         atx = true
         marker = assert(self.node:child_at(0), 'atx heading missing marker')
-        level = str.level(marker.text)
+        level = str.chars(marker.text, '#')
     elseif self.node.type == 'setext_heading' and self.config.setext then
         atx = false
         marker = assert(self.node:child_at(1), 'ext heading missing underline')

lua/render-markdown/render/markdown/section.lua

@@ -86,7 +86,7 @@ end
 ---@return boolean
 function Render:section(position, by)
     local _, line = self.node:line(position, by)
-    return line and str.level(line) > 0 or false
+    return line and str.chars(line, '#') > 0 or false
 end
 
 return Render

lua/render-markdown/settings.lua

@@ -1186,6 +1186,8 @@ M.latex = {}
 
 ---@class (exact) render.md.latex.Config: render.md.base.Config
 ---@field converter string|string[]
+---@field inline boolean
+---@field block boolean
 ---@field highlight string
 ---@field position render.md.latex.Position
 ---@field top_pad integer
@@ -1207,6 +1209,10 @@ M.latex.default = {
     -- Executable used to convert latex formula to rendered unicode.
     -- If a list is provided the commands run in order until the first success.
     converter = { 'utftex', 'latex2text' },
+    -- Render inline latex formulas.
+    inline = true,
+    -- Render block latex formulas.
+    block = true,
     -- Highlight for latex blocks.
     highlight = 'RenderMarkdownMath',
     -- Determines where latex formula is rendered relative to block.
@@ -1226,6 +1232,8 @@ function M.latex.schema()
         converter = {
             union = { { list = { type = 'string' } }, { type = 'string' } },
         },
+        inline = { type = 'boolean' },
+        block = { type = 'boolean' },
         highlight = { type = 'string' },
         position = { enum = M.latex.position },
         top_pad = { type = 'number' },