fix nested quotes and alter linebreak parsing

lib/babycode.lua

@@ -23,6 +23,10 @@ function babycode.to_html(s, escape_html)
     end
   end)
   
+  text = text:gsub("  %s?\r?\n", "<br>")
+  -- normalize newlines
+  text = text:gsub("\r?\n\r?\n+", "<br>")
+  
   local url_tags = {}
   -- replace `[url=https://example.com]Example[/url] tags
   text = text:gsub("%[url=([^%]]+)%](.-)%[/url%]", function(url, label)
@@ -30,17 +34,15 @@ function babycode.to_html(s, escape_html)
     return "\1URL:"..#url_tags.."\1"
   end)
 
-  -- replace `[url]https://example.com[/url] tags
-  -- text = text:gsub("%[url%]([^%]]+)%[/url%]", function(url)
-  --   return '<a href="'..url..'">'..url..'</a>'
-  -- end)
-
   -- bold, italics, strikethrough
   text = text:gsub("%[b%](.-)%[/b%]", "<strong>%1</strong>")
   text = text:gsub("%[i%](.-)%[/i%]", "<em>%1</em>")
   text = text:gsub("%[s%](.-)%[/s%]", "<del>%1</del>")
   
-  text = text:gsub("%[quote%](.-)%[/quote%]", "<blockquote>%1</blockquote>")
+  -- these can be nested, so replace open and closed separately
+  -- text = text:gsub("%[quote%]", "<blockquote>")
+  -- text = text:gsub("%[/quote%]", "</blockquote>")
+  text = text:gsub("%[(/?)quote%]", "<%1blockquote>")
 
   -- replace loose links
   text = text:gsub("(https?://[%w-_%.%?%.:/%+=&~%@#%%]+[%w-/])", function(url)
@@ -58,9 +60,6 @@ function babycode.to_html(s, escape_html)
   -- rule
   text = text:gsub("\n+%-%-%-", "<hr>")
 
-  -- normalize newlines, replace them with <br>
-  text = text:gsub("\r?\n\r?\n+", "<br>")--:gsub("\r?\n", "<br>")
-
   -- replace code block placeholders back with their original contents
   text = text:gsub("\1CODE:(%d+)\1", function(n)
     local code = code_blocks[tonumber(n)]

migrations.lua

@@ -73,4 +73,22 @@ return {
     schema.add_column("users", "signature_original_markup", types.text{default = ""})
     schema.add_column("users", "signature_rendered", types.text{default = ""})
   end,
+  
+  [11] = function ()
+    local render = require("lib.babycode").to_html
+    local html_escape = require("lapis.html").escape
+    local phs = db.query("SELECT * from post_history")
+    local users = db.query("SELECT * from users")
+    db.query("BEGIN")
+    
+    for _, post_history in ipairs(phs) do
+      db.query("UPDATE post_history SET content = ? WHERE id = ?", render(post_history.original_markup, html_escape), post_history.id)
+    end
+    
+    for _, user in ipairs(users) do
+      db.query("UPDATE users SET signature_rendered = ? WHERE id = ?", render(user.signature_original_markup, html_escape), user.id)
+    end
+    
+    db.query("COMMIT")
+  end,
 }

views/threads/post.etlua

@@ -64,14 +64,11 @@
     </div>
     <div class="post-content">
       <% if not edit then %>
-        <div class="post-inner">
-        <%- post.content %>
-        </div>
+        <div class="post-inner"><%- post.content %></div>
         <% if render_sig and #post.signature_rendered > 0 then %>
           <div class="signature-container">
             <hr>
-            <%- post.signature_rendered %>
-          </div>
+            <%- post.signature_rendered %></div>
         <% end %>
       <% else %>
         <% render("views.common.babycode-editor", {