From 85c9d4565fce30f8afdd8b0663b50de89900f36f Mon Sep 17 00:00:00 2001
From: Bryce Kwon <bryce@brycekwon.com>
Date: Sat, 31 Oct 2026 13:30:21 -0700
Subject: Collect an email filter's writes like the others

---
 custom/extensions/email-gravatar.lua   | 11 ++++++-----
 custom/extensions/email-libravatar.lua | 11 ++++++-----
 2 files changed, 12 insertions(+), 10 deletions(-)

(limited to 'custom/extensions')

diff --git a/custom/extensions/email-gravatar.lua b/custom/extensions/email-gravatar.lua
index aebb27c..467deff 100644
--- a/custom/extensions/email-gravatar.lua
+++ b/custom/extensions/email-gravatar.lua
@@ -47,7 +47,7 @@ local base_url = "https://gravatar.com/avatar/"
 
 -- One name reaches this filter as an open, writes and a close, so what the
 -- open works out is kept here for the close.
-local buffer = ""
+local chunks = {}
 local avatar_hash = nil
 
 local function hash_hex(input)
@@ -96,7 +96,7 @@ local function normalize_email(email)
 end
 
 function filter_open(email, page)
-	buffer = ""
+	chunks = {}
 	local address = normalize_email(email)
 	if address == nil or not has_digest then
 		avatar_hash = nil
@@ -106,7 +106,7 @@ function filter_open(email, page)
 end
 
 function filter_write(text)
-	buffer = buffer .. text
+	chunks[#chunks + 1] = text
 end
 
 local function avatar_url(size)
@@ -118,14 +118,15 @@ end
 -- off the critical path. The icon only decorates the name beside it, so its
 -- alt text is empty and a screen reader goes straight to the name.
 function filter_close()
+	local text = table.concat(chunks)
 	if avatar_hash == nil then
-		html(buffer)
+		html(text)
 	else
 		html("<img src='" .. avatar_url(avatar_size) ..
 			"' srcset='" .. avatar_url(avatar_size * 2) .. " 2x" ..
 			"' alt='' width='" .. avatar_size ..
 			"' height='" .. avatar_size ..
-			"' loading='lazy' decoding='async'> " .. buffer)
+			"' loading='lazy' decoding='async'> " .. text)
 	end
 	return 0
 end
diff --git a/custom/extensions/email-libravatar.lua b/custom/extensions/email-libravatar.lua
index fca67a7..0a6e10c 100644
--- a/custom/extensions/email-libravatar.lua
+++ b/custom/extensions/email-libravatar.lua
@@ -46,7 +46,7 @@ local base_url = "https://seccdn.libravatar.org/avatar/"
 
 -- One name reaches this filter as an open, writes and a close, so what the
 -- open works out is kept here for the close.
-local buffer = ""
+local chunks = {}
 local avatar_hash = nil
 
 local function hash_hex(input)
@@ -95,7 +95,7 @@ local function normalize_email(email)
 end
 
 function filter_open(email, page)
-	buffer = ""
+	chunks = {}
 	local address = normalize_email(email)
 	if address == nil or not has_digest then
 		avatar_hash = nil
@@ -105,7 +105,7 @@ function filter_open(email, page)
 end
 
 function filter_write(text)
-	buffer = buffer .. text
+	chunks[#chunks + 1] = text
 end
 
 local function avatar_url(size)
@@ -117,14 +117,15 @@ end
 -- off the critical path. The icon only decorates the name beside it, so its
 -- alt text is empty and a screen reader goes straight to the name.
 function filter_close()
+	local text = table.concat(chunks)
 	if avatar_hash == nil then
-		html(buffer)
+		html(text)
 	else
 		html("<img src='" .. avatar_url(avatar_size) ..
 			"' srcset='" .. avatar_url(avatar_size * 2) .. " 2x" ..
 			"' alt='' width='" .. avatar_size ..
 			"' height='" .. avatar_size ..
-			"' loading='lazy' decoding='async'> " .. buffer)
+			"' loading='lazy' decoding='async'> " .. text)
 	end
 	return 0
 end
-- 
cgit