Fix discarding significant characters

README.md

@@ -323,6 +323,8 @@ However, there are some syntax requirements for speed and sanity reasons.
 
 Tag names are case sensitive. For example, this means that `P` won't be recognised as a content element, `bR` won't be considered as a void tag, and the contents of `Script` won't be parsed as JavaScript.
 
+[Tags must not be omitted.](https://html.spec.whatwg.org/multipage/syntax.html#syntax-tag-omission)
+
 ### Entities
 
 Well-formed entities are decoded, including in attribute values.

src/unit/bang.rs

@@ -5,7 +5,7 @@ pub fn process_bang(proc: &mut Processor) -> ProcessingResult<()> {
     if cfg!(debug_assertions) {
         chain!(proc.match_seq(b"<!").expect().keep());
     } else {
-        proc.skip_amount_expect(2);
+        proc.accept_amount_expect(2);
     };
 
     chain!(proc.match_while_not_char(b'>').keep());

src/unit/content.rs

@@ -65,7 +65,7 @@ macro_rules! handle_content_type {
     };
 }
 
-pub fn process_wss_content(proc: &mut Processor) -> ProcessingResult<()> {
+fn process_wss_content(proc: &mut Processor) -> ProcessingResult<()> {
     loop {
         handle_content_type!(proc, ContentType::peek(proc), { parse_entity(proc, false)?.keep(proc); }, { proc.accept()?; });
     };

src/unit/script/js.rs

@@ -9,7 +9,7 @@ fn parse_comment_single(proc: &mut Processor) -> ProcessingResult<()> {
     if cfg!(debug_assertions) {
         chain!(proc.match_seq(b"//").expect().keep());
     } else {
-        proc.skip_amount_expect(2);
+        proc.accept_amount_expect(2);
     };
 
     // Comment can end at closing </script>.
@@ -29,7 +29,7 @@ fn parse_comment_multi(proc: &mut Processor) -> ProcessingResult<()> {
     if cfg!(debug_assertions) {
         chain!(proc.match_seq(b"/*").expect().keep());
     } else {
-        proc.skip_amount_expect(2);
+        proc.accept_amount_expect(2);
     };
 
     // Comment can end at closing </script>.
@@ -82,7 +82,7 @@ fn parse_template(proc: &mut Processor) -> ProcessingResult<()> {
     if cfg!(debug_assertions) {
         chain!(proc.match_char(b'`').expect().keep());
     } else {
-        proc.skip_expect();
+        proc.accept_expect();
     };
 
     let mut escaping = false;

src/unit/tag.rs

@@ -48,12 +48,11 @@ pub fn process_tag(proc: &mut Processor) -> ProcessingResult<()> {
     if cfg!(debug_assertions) {
         chain!(proc.match_char(b'<').expect().keep());
     } else {
-        proc.skip_expect();
+        proc.accept_expect();
     };
     // May not be valid tag name at current position, so require instead of expect.
     let opening_name_range = chain!(proc.match_while_pred(is_valid_tag_name_char).require_with_reason("tag name")?.keep().out_range());
 
-    // TODO DOC: Tags must be case sensitive.
     let tag_type = match &proc[opening_name_range] {
         b"script" => TagType::Script,
         b"style" => TagType::Style,