fix(templ): unescape strings in parser

crates/rari-doc/Cargo.toml

@@ -45,6 +45,7 @@ svg_metadata = "0.5"
 memoize = "0.4"
 phf_macros = "0.11"
 phf = "0.11"
+unescaper = "0.1"
 
 rari-utils.workspace = true
 rari-types.workspace = true

crates/rari-doc/src/templ/parser.rs

@@ -73,18 +73,37 @@ pub enum Token {
 
 fn to_arg(pair: Pair<'_, Rule>) -> Option<Arg> {
     match pair.as_rule() {
-        Rule::sq_string => Some(Arg::String(
-            pair.as_span().as_str().to_string(),
-            Quotes::Single,
-        )),
-        Rule::dq_string => Some(Arg::String(
-            pair.as_span().as_str().to_string(),
-            Quotes::Double,
-        )),
-        Rule::bq_string => Some(Arg::String(
-            pair.as_span().as_str().to_string(),
-            Quotes::Back,
-        )),
+        Rule::sq_string => {
+            let s = pair.as_span().as_str();
+            Some(Arg::String(
+                unescaper::unescape(s).unwrap_or_else(|e| {
+                    tracing::error!(source = "templ_parser", "{}", e);
+                    s.to_string()
+                }),
+                Quotes::Single,
+            ))
+        }
+        Rule::dq_string => {
+            let s = pair.as_span().as_str();
+            Some(Arg::String(
+                unescaper::unescape(s).unwrap_or_else(|e| {
+                    tracing::error!(source = "templ_parser", "{}", e);
+                    s.to_string()
+                }),
+                Quotes::Double,
+            ))
+        }
+        Rule::bq_string => {
+            let s = pair.as_span().as_str();
+            Some(Arg::String(
+                unescaper::unescape(s).unwrap_or_else(|e| {
+                    tracing::error!(source = "templ_parser", "{}", e);
+                    s.to_string()
+                }),
+                Quotes::Back,
+            ))
+        }
+
         Rule::int => Some(Arg::Int(
             pair.as_span().as_str().parse().unwrap_or_default(),
         )),

crates/rari-doc/src/templ/render.rs

@@ -168,3 +168,34 @@ fn push_text(out: &mut String, slice: &str) {
     }
     out.push_str(&slice[last..]);
 }
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_basic() -> Result<(), DocError> {
+        let env = RariEnv {
+            ..Default::default()
+        };
+        let Rendered {
+            content, templs, ..
+        } = render(&env, r#"{{ echo("doom") }}"#, 0)?;
+        let out = decode_ref(&content, &templs)?;
+        assert_eq!(out, r#"doom"#);
+        Ok(())
+    }
+
+    #[test]
+    fn test_escape() -> Result<(), DocError> {
+        let env = RariEnv {
+            ..Default::default()
+        };
+        let Rendered {
+            content, templs, ..
+        } = render(&env, r#"{{ echo("\"doom\"") }}"#, 0)?;
+        let out = decode_ref(&content, &templs)?;
+        assert_eq!(out, r#""doom""#);
+        Ok(())
+    }
+}

crates/rari-doc/src/templ/templs/echo.rs

@@ -0,0 +1,8 @@
+use rari_templ_func::rari_f;
+
+use crate::error::DocError;
+
+#[rari_f]
+pub fn echo(s: String) -> Result<String, DocError> {
+    Ok(s)
+}

crates/rari-doc/src/templ/templs/mod.rs

@@ -6,6 +6,7 @@ pub mod compat;
 pub mod css_ref;
 pub mod cssinfo;
 pub mod csssyntax;
+pub mod echo;
 pub mod embeds;
 pub mod firefox_for_developers;
 pub mod glossary;
@@ -163,6 +164,9 @@ pub fn invoke(
         // ignore
         "xulelem" => return Ok((Default::default(), false)),
 
+        // debug
+        "echo" => echo::echo_any,
+
         // unknown
         _ if deny_warnings() => return Err(DocError::UnknownMacro(name.to_string())),
         _ => {