Fix multi-point unicode glyphs in yuck lexer

crates/simplexpr/src/parser/lexer.rs

@@ -97,4 +97,5 @@ impl<'input> Iterator for Lexer<'input> {
 fn test_simplexpr_lexer() {
     use itertools::Itertools;
     insta::assert_debug_snapshot!(Lexer::new(0, 0, r#"(foo + - "()" "a\"b" true false [] 12.2)"#).collect_vec());
+    insta::assert_debug_snapshot!(Lexer::new(0, 0, r#""   " + music"#).collect_vec());
 }

crates/simplexpr/src/parser/snapshots/simplexpr__parser__lexer__simplexpr_lexer-2.snap

@@ -0,0 +1,32 @@
+---
+source: crates/simplexpr/src/parser/lexer.rs
+expression: "Lexer::new(0, 0, r#\"\"   \" + music\"#).collect_vec()"
+
+---
+[
+    Ok(
+        (
+            0,
+            StrLit(
+                "\"\u{f001}   \"",
+            ),
+            8,
+        ),
+    ),
+    Ok(
+        (
+            9,
+            Plus,
+            10,
+        ),
+    ),
+    Ok(
+        (
+            11,
+            Ident(
+                "music",
+            ),
+            16,
+        ),
+    ),
+]

crates/yuck/src/parser/lexer.rs

@@ -101,13 +101,15 @@ impl Iterator for Lexer {
             let string = &self.source[self.pos..];
 
             if string.starts_with('{') {
-                // self.pos += 1;
                 let expr_start = self.pos;
                 let mut in_string = false;
                 loop {
                     if self.pos >= self.source.len() {
                         return None;
                     }
+                    while !self.source.is_char_boundary(self.pos) {
+                        self.pos += 1;
+                    }
                     let string = &self.source[self.pos..];
 
                     if string.starts_with('}') && !in_string {
@@ -137,7 +139,6 @@ impl Iterator for Lexer {
                     Some(x) => x,
                     None => {
                         self.failed = true;
-                        dbg!(&string);
                         return Some(Err(parse_error::ParseError::LexicalError(Span(self.pos, self.pos, self.file_id))));
                     }
                 };
@@ -163,4 +164,5 @@ fn test_yuck_lexer() {
     insta::assert_debug_snapshot!(Lexer::new(0, r#"(foo + - "text" )"#.to_string()).collect_vec());
     insta::assert_debug_snapshot!(Lexer::new(0, r#"{ bla "} \" }" " \" "}"#.to_string()).collect_vec());
     insta::assert_debug_snapshot!(Lexer::new(0, r#""< \" >""#.to_string()).collect_vec());
+    insta::assert_debug_snapshot!(Lexer::new(0, r#"{ "   " + music}"#.to_string()).collect_vec());
 }

crates/yuck/src/parser/snapshots/yuck__parser__lexer__yuck_lexer-4.snap

@@ -0,0 +1,16 @@
+---
+source: crates/yuck/src/parser/lexer.rs
+expression: "Lexer::new(0, r#\"{ \"   \" + music}\"#.to_string()).collect_vec()"
+
+---
+[
+    Ok(
+        (
+            0,
+            SimplExpr(
+                "{ \"\u{f001}   \" + music}",
+            ),
+            18,
+        ),
+    ),
+]

examples/eww-bar/eww.yuck

@@ -24,8 +24,7 @@
 
 (defwidget music []
  (box :class "music" :orientation "h" :space-evenly false :halign "center"
-  ;{ "  " + music}))
-  {music}))
+  { "  " + music}))
 
 (defwidget slider-vol []
  (box :class "slider-vol" :orientation "h" :space-evenly "false"