From bfff0560a0e448eef41ac2b4c7e8deb0a77e4167 Mon Sep 17 00:00:00 2001
From: Martin Fischer <martin@push-f.com>
Date: Fri, 18 Aug 2023 14:14:52 +0200
Subject: break!: remove StartTag::next_state

You shouldn't manually have to match tokens yielded by the
tokenizer iterator just to correctly handle state transitions.
A better NaiveParser API will be introduced.
---
 examples/switch-state.rs | 20 --------------------
 src/emitter.rs           | 18 ------------------
 2 files changed, 38 deletions(-)
 delete mode 100644 examples/switch-state.rs

diff --git a/examples/switch-state.rs b/examples/switch-state.rs
deleted file mode 100644
index 9ebc673..0000000
--- a/examples/switch-state.rs
+++ /dev/null
@@ -1,20 +0,0 @@
-//! Let's you easily try out the tokenizer with e.g.
-//! printf '<style><b>Hello world!</b></style>' | cargo run --example=switch-state
-use html5tokenizer::{BufReadReader, Token, Tokenizer};
-use std::io::stdin;
-
-fn main() {
-    let stdin = stdin();
-    let mut tokenizer = Tokenizer::new(BufReadReader::new(stdin.lock()));
-
-    while let Some(token) = tokenizer.next() {
-        let token = token.unwrap();
-        println!("{:?}", token);
-
-        if let Token::StartTag(start_tag) = token {
-            // take care of switching parser state for e.g. <script> & <style>
-            // this is not strictly spec-compliant but good enough most of the time
-            tokenizer.set_state(start_tag.next_state(false));
-        }
-    }
-}
diff --git a/src/emitter.rs b/src/emitter.rs
index fba1f6a..c09fe1c 100644
--- a/src/emitter.rs
+++ b/src/emitter.rs
@@ -7,7 +7,6 @@ use std::mem;
 
 use crate::spans::Span;
 use crate::Error;
-use crate::State;
 
 /// An emitter is an object providing methods to the tokenizer to produce tokens.
 ///
@@ -487,23 +486,6 @@ pub struct StartTag<S> {
     pub name_span: S,
 }
 
-impl<S> StartTag<S> {
-    /// Returns the next tokenizer state according to
-    /// [Parsing HTML fragments](https://html.spec.whatwg.org/multipage/parsing.html#concept-frag-parse-context).
-    /// If `scripting` is set to true [`State::RawText`] is returned if this is a `<noscript>` tag,
-    /// otherwise [`State::Data`] is returned (as with any other regular tag).
-    pub fn next_state(&self, scripting: bool) -> State {
-        match self.name.as_str() {
-            "title" | "textarea" => State::RcData,
-            "style" | "xmp" | "iframe" | "noembed" | "noframes" => State::RawText,
-            "script" => State::ScriptData,
-            "noscript" if scripting => State::RawText,
-            "plaintext" => State::PlainText,
-            _other => State::Data,
-        }
-    }
-}
-
 /// A HTML attribute value (plus spans).
 #[derive(Debug, Default, Eq, PartialEq)]
 pub struct Attribute<S> {
-- 
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