CSS: fix bug with custom variables starting with a digit, fixes #861; HTML: fix bug in lowercasing template attributes

Author: tdewolff

css/css_test.go

@@ -348,6 +348,7 @@ func TestCSSInline(t *testing.T) {
 		{"--foo: ;", "--foo: "},               // whitespace value
 		{"--foo:;", "--foo:"},                 // empty value
 		{"--foo: initial ;", "--foo:initial"}, // invalid value, serializes to empty
+		{"x: var(--0);", "x:var(--0)"},
 		{"color=blue;", "color=blue"},
 		{"x: white , white", "x:white,white"},
 

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/djherbis/atime v1.1.0
 	github.com/fsnotify/fsnotify v1.8.0
 	github.com/tdewolff/argp v0.0.0-20250209172303-079abae893fb
-	github.com/tdewolff/parse/v2 v2.8.3
+	github.com/tdewolff/parse/v2 v2.8.4
 	github.com/tdewolff/test v1.0.11
 )
 

go.sum

@@ -23,6 +23,8 @@ github.com/tdewolff/argp v0.0.0-20250209172303-079abae893fb h1:Id2aj2q74MC+yHBGQ
 github.com/tdewolff/argp v0.0.0-20250209172303-079abae893fb/go.mod h1:PKhwRVvnrI2gye5NRF3c4VWbE+3E9mGyRUsNWGcJlDY=
 github.com/tdewolff/parse/v2 v2.8.3 h1:5VbvtJ83cfb289A1HzRA9sf02iT8YyUwN84ezjkdY1I=
 github.com/tdewolff/parse/v2 v2.8.3/go.mod h1:Hwlni2tiVNKyzR1o6nUs4FOF07URA+JLBLd6dlIXYqo=
+github.com/tdewolff/parse/v2 v2.8.4 h1:A6slgBLGGDPBMGA28KQZfHpaKffuNvhOe7zSag+x/rw=
+github.com/tdewolff/parse/v2 v2.8.4/go.mod h1:Hwlni2tiVNKyzR1o6nUs4FOF07URA+JLBLd6dlIXYqo=
 github.com/tdewolff/test v1.0.6/go.mod h1:6DAvZliBAAnD7rhVgwaM7DE5/d9NMOAJ09SqYqeK4QE=
 github.com/tdewolff/test v1.0.11 h1:FdLbwQVHxqG16SlkGveC0JVyrJN62COWTRyUFzfbtBE=
 github.com/tdewolff/test v1.0.11/go.mod h1:XPuWBzvdUzhCuxWO1ojpXsyzsA5bFoS3tO/Q3kFuTG8=

html/html_test.go

@@ -382,6 +382,7 @@ func TestHTMLGoTemplates(t *testing.T) {
 		{`<p>Hello <code>{{""}}</code> there</p>`, `<p>Hello <code>{{""}}</code> there`},
 		{`<select><option>Default</option>{{range $i, $lang := .Languages}}<option>{{$lang}}</option>{{end}}</select>`, `<select><option>Default{{range $i, $lang := .Languages}}<option>{{$lang}}{{end}}</select>`},
 		{`<tr{{if .Deleted}} class="is-disabled"{{end}}>`, `<tr{{if .Deleted}} class="is-disabled"{{end}}>`},
+		{`<a {{.Foo}}{{xx .Bar}}>`, `<a {{.Foo}}{{xx .Bar}}>`},
 
 		// whitespace
 		{`{{ printf "  !  " }}`, `{{ printf "  !  " }}`},