From 5dda97db8322de992ef36d65dd1162ff7d94780d Mon Sep 17 00:00:00 2001
From: rjp <zimpenfish@gmail.com>
Date: Fri, 1 Apr 2022 14:07:47 +0100
Subject: [PATCH] `attrRe` is too strict re: attribute names

---
 display.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/display.go b/display.go
index 0be946c..3a491bd 100644
--- a/display.go
+++ b/display.go
@@ -21,7 +21,9 @@ type Displayer interface {
 }
 
 func ParseDisplayer(cmd string) error {
-	attrRe := regexp.MustCompile(`attr\{([a-zA-Z\-]+)\}`)
+	// Attribute names can be almost anything.
+	// cf https://www.w3.org/TR/2012/WD-html5-20120329/syntax.html#syntax-attribute-name
+	attrRe := regexp.MustCompile(`attr\{([^\s"'>/=\p{Cc}]+)\}`)
 	if cmd == "text{}" {
 		pupDisplayer = TextDisplayer{}
 	} else if cmd == "json{}" {