fix(parser): Added support for extra info on the code block start line

Ref: #77

lua/markview.lua

@@ -703,6 +703,33 @@ markview.configuration = {
 				end
 			end
 		},
+		{
+			group_name = "CodeInfo",
+			value = function ()
+				local bg = markview.colors.get({
+					markview.colors.get_hl_value(0, "Normal", "bg"),
+					markview.colors.get_hl_value(0, "Cursor", "fg"),
+
+					vim.o.background == "dark" and "#1e1e2e" or "#cdd6f4"
+				});
+
+				local luminosity = markview.colors.get_brightness(bg);
+
+				if luminosity < 0.5 then
+					return {
+						bg = markview.colors.mix(bg, bg, 1, math.max(luminosity, 0.25)),
+						fg = markview.colors.get_hl_value(0, "Comment", "fg"),
+						default = true
+					};
+				else
+					return {
+						bg = markview.colors.mix(bg, bg, 1, math.min(luminosity, 0.25) * -1),
+						fg = markview.colors.get_hl_value(0, "Comment", "fg"),
+						default = true
+					};
+				end
+			end
+		},
 		{
 			group_name = "InlineCode",
 			value = function ()
@@ -991,6 +1018,7 @@ markview.configuration = {
 
 		style = "language",
 		hl = "MarkviewCode",
+		info_hl = "MarkviewCodeInfo",
 
 		min_width = 60,
 		pad_amount = 3,

lua/markview/parser.lua

@@ -168,7 +168,6 @@ parser.md = function (buffer, TStree, from, to)
 
 			local heading_txt = capture_node:next_sibling();
 			local title = heading_txt ~= nil and vim.treesitter.get_node_text(heading_txt, buffer) or nil;
-			local h_txt_r_start, h_txt_c_start, h_txt_r_end, h_txt_c_end;
 
 			table.insert(parser.parsed_content, {
 				node = capture_node,
@@ -205,10 +204,26 @@ parser.md = function (buffer, TStree, from, to)
 				table.insert(line_lens, len);
 			end
 
+			local language_string, additional_info = "", nil;
+
+			-- chore: This needs more work
+			if block_start:match("^%s*```{{?([^}]*)}}?") then
+				language_string = block_start:match("^%s*```{{?([^}]*)}}?");
+				additional_info = block_start:match("^%s*```{{?[^}]*}}?%s*(.*)$");
+			elseif block_start:match("^%s*```(%S*)$") then
+				language_string = block_start:match("^%s*```(%S*)$");
+			elseif block_start:match("%s*```(%S*)%s*") then
+				language_string = block_start:match("%s*```(%S*)%s");
+				additional_info = block_start:match("^%s*```%S*%s+(.*)$");
+			end
+
 			table.insert(parser.parsed_content, {
 				node = capture_node,
 				type = "code_block",
-				language = block_start:match("%s*```(%S*)$") or "",
+				language = language_string,
+
+				info_string = block_start:gsub("^%s*", ""),
+				block_info = additional_info,
 
 				line_lengths = line_lens,
 				largest_line = highest_len,

lua/markview/renderer.lua

@@ -983,6 +983,7 @@ renderer.render_code_blocks = function (buffer, content, config_table)
 		end
 
 		local lang_width = vim.fn.strchars(" " .. icon .. " " .. languageName .. " ");
+		local info_width = math.min(vim.fn.strchars(content.info_string or ""), content.largest_line);
 
 		if config_table.language_direction == nil or config_table.language_direction == "left" then
 			vim.api.nvim_buf_set_extmark(buffer, renderer.namespace, content.row_start, content.col_start + 3 + vim.fn.strlen(content.language), {
@@ -999,10 +1000,26 @@ renderer.render_code_blocks = function (buffer, content, config_table)
 				hl_mode = "combine",
 			});
 		elseif config_table.language_direction == "right" then
-			vim.api.nvim_buf_set_extmark(buffer, renderer.namespace, content.row_start, content.col_start + 3 + vim.fn.strlen(content.language), {
+			vim.api.nvim_buf_set_extmark(buffer, renderer.namespace, content.row_start, content.col_start, {
+				end_col = vim.fn.strchars(content.info_string),
+				conceal = "",
+			});
+
+			local rendered_info = vim.fn.strcharpart(content.block_info or "", 0, block_length - lang_width + ((config_table.pad_amount or 1) * 2) - 4);
+
+			if content.block_info ~= "" and vim.fn.strchars(content.block_info) > (block_length - lang_width - ((content.pad_amount or 1) * 2)) then
+				rendered_info = rendered_info .. "...";
+				-- Hi
+			end
+			vim.print(rendered_info)
+
+			-- vim.print(content.col_start + vim.fn.strchars(content.info_string))
+
+			vim.api.nvim_buf_set_extmark(buffer, renderer.namespace, content.row_start, content.col_start + 3, {
 				virt_text_pos = config_table.position or "inline",
 				virt_text = {
-					{ string.rep(config_table.pad_char or " ", block_length - lang_width + ((config_table.pad_amount or 1) * 2)), set_hl(config_table.hl) },
+					{ rendered_info, set_hl(config_table.info_hl or config_table.hl) },
+					{ string.rep(config_table.pad_char or " ", block_length - lang_width - vim.fn.strchars(rendered_info) + ((config_table.pad_amount or 1) * 2)), set_hl(config_table.hl) },
 					{ " " .. icon .. " ", set_hl(hl) },
 					{ languageName .. " ", set_hl(config_table.name_hl) or set_hl(hl) },
 				},