From 8d505da65ad325732fa35abcf4032c9b1883c0af Mon Sep 17 00:00:00 2001
From: Florian Fischer <florian.fischer@muhq.space>
Date: Sat, 6 Sep 2025 11:38:55 +0200
Subject: parse LSP messages containing a Content-Type header

---
 parser.lua | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'parser.lua')

diff --git a/parser.lua b/parser.lua
index 85c67d6..0c9fc0a 100644
--- a/parser.lua
+++ b/parser.lua
@@ -23,7 +23,7 @@ function Parser:add(data)
   -- we have not seen a complete header in data yet
   if not self.exp_len then
     -- search for the end of a header
-    -- LSP message format: 'header\r\n\r\nbody'
+    -- LSP message format: header\r\n(header\r\n)?\r\nbody'
     local header_end, content_start = self.data:find('\r\n\r\n')
 
     -- header is not complete yet -> save data and wait for more
@@ -35,7 +35,8 @@ function Parser:add(data)
     local header = self.data:sub(1, header_end)
 
     -- extract content length from the header
-    self.exp_len = tonumber(header:match('%d+'))
+    local length = header:match('Content%-Length: %d+')
+    self.exp_len = tonumber(length:match('%d+'))
     if not self.exp_len then
       return 'invalid header in data: ' .. self.data
     end
-- 
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