Ahhhhh HEAD main

1 files changed, 53 insertions, 0 deletions

diff --git a/src/tag.rs b/src/tag.rs
index 0a97061..43c4e0c 100644..100755
--- a/src/tag.rs
+++ b/src/tag.rs
@@ -1,4 +1,5 @@
 use core::fmt;
+use std::{iter::Peekable, str::CharIndices};
 
 use crate::Node;
 
@@ -208,6 +209,8 @@ impl<'a> Iterator for TagIteratorMut<'a> {
 mod test {
 	use crate::Tag;
 
+	use super::peek_skip_while;
+
 	#[test]
 	fn tag_finds_boolen_attribute() {
 		let tag = Tag {
@@ -240,4 +243,54 @@ mod test {
 		};
 		assert!(tag.get_attribute("contenteditable").is_some());
 	}
+
+	// yes, this is a bad name.
+	#[test]
+	fn peek_skip_while_works() {
+		let str = "\t    no whitespace";
+		let mut chari = str.char_indices().peekable();
+
+		peek_skip_while(&mut chari, |c| c.is_whitespace());
+
+		let next_idx = chari.next().unwrap().0;
+		assert_eq!(&str[next_idx..], "no whitespace");
+	}
+}
+
+struct Attribute<'body> {
+	name: &'body str,
+	content: Option<&'body str>,
+	start: usize,
+	len: usize,
+}
+
+fn find_attribute<'body>(body: &'body str, attribute: &str) -> Option<Attribute<'body>> {
+	let mut chari = body.char_indices().peekable();
+
+	'big: loop {
+		// skip whitespace
+		peek_skip_while(&mut chari, |c| c.is_whitespace());
+
+		let key_start = chari.next().unwrap();
+		// find end of key
+		peek_skip_while(&mut chari, |c| c.is_alphanumeric());
+
+		let key_after = chari.next().unwrap();
+	}
+
+	todo!()
+}
+
+fn peek_skip_while<P>(iter: &mut Peekable<CharIndices>, mut predicate: P)
+where
+	P: FnMut(&char) -> bool,
+{
+	loop {
+		match iter.peek() {
+			Some((_, c)) if predicate(c) => {
+				iter.next();
+			}
+			_ => break,
+		}
+	}
 }