diff --git a/Cargo.lock b/Cargo.lock
index 2e0f9b5..6a4b961 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -59,6 +59,16 @@ dependencies = [
  "syn 2.0.72",
 ]
 
+[[package]]
+name = "auto-registry"
+version = "0.0.4"
+dependencies = [
+ "lazy_static",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "auto_impl"
 version = "1.2.0"
@@ -733,6 +743,7 @@ name = "nml"
 version = "0.1.0"
 dependencies = [
  "ariadne",
+ "auto-registry",
  "dashmap 6.0.1",
  "downcast-rs",
  "getopts",
@@ -743,6 +754,7 @@ dependencies = [
  "mlua",
  "rand 0.8.5",
  "regex",
+ "runtime-format",
  "rusqlite",
  "rust-crypto",
  "serde",
@@ -1094,6 +1106,15 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
 
+[[package]]
+name = "runtime-format"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09958d5b38bca768ede7928c767c89a08ba568144a7b61992aecae79b03c8c94"
+dependencies = [
+ "tinyvec",
+]
+
 [[package]]
 name = "rusqlite"
 version = "0.31.0"
diff --git a/Cargo.toml b/Cargo.toml
index 660725f..7f1bdc3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,6 +17,7 @@ inherits = "release"
 debug = true
 
 [dependencies]
+auto-registry = { path = "crates/auto-registry" }
 ariadne = "0.4.1"
 dashmap = "6.0.1"
 downcast-rs = "1.2.1"
@@ -32,11 +33,16 @@ rust-crypto = "0.2.36"
 serde = "1.0.204"
 serde_json = "1.0.120"
 syntect = "5.2.0"
-tokio = { version = "1.38.1", features = ["macros", "rt-multi-thread", "io-std"]}
+tokio = { version = "1.38.1", features = [
+    "macros",
+    "rt-multi-thread",
+    "io-std",
+] }
 
 tower-lsp = "0.20.0"
 unicode-segmentation = "1.11.0"
 walkdir = "2.5.0"
+runtime-format = "0.1.3"
 
 [dev-dependencies]
 rand = "0.8.5"
diff --git a/src/elements/blockquote.rs b/src/elements/blockquote.rs
index 6fd8a64..0c159bf 100644
--- a/src/elements/blockquote.rs
+++ b/src/elements/blockquote.rs
@@ -1,3 +1,4 @@
+use core::fmt;
 use std::any::Any;
 use std::collections::HashMap;
 use std::ops::Range;
@@ -11,9 +12,13 @@ use blockquote_style::AuthorPos::Before;
 use blockquote_style::BlockquoteStyle;
 use regex::Match;
 use regex::Regex;
-use runtime_fmt::rt_format;
+use runtime_format::FormatArgs;
+use runtime_format::FormatError;
+use runtime_format::FormatKey;
+use runtime_format::FormatKeyError;
 
 use crate::compiler::compiler::Compiler;
+use crate::compiler::compiler::Target;
 use crate::compiler::compiler::Target::HTML;
 use crate::document::document::Document;
 use crate::document::element::ContainerElement;
@@ -42,6 +47,28 @@ pub struct Blockquote {
 	pub(self) style: Rc<blockquote_style::BlockquoteStyle>,
 }
 
+struct FmtPair<'a>(Target, &'a Blockquote);
+
+impl FormatKey for FmtPair<'_> {
+	fn fmt(&self, key: &str, f: &mut fmt::Formatter<'_>) -> Result<(), FormatKeyError> {
+		match key {
+			"author" => write!(
+				f,
+				"{}",
+				Compiler::sanitize(self.0, self.1.author.as_ref().unwrap_or(&"".into()))
+			)
+			.map_err(FormatKeyError::Fmt),
+			"cite" => write!(
+				f,
+				"{}",
+				Compiler::sanitize(self.0, self.1.cite.as_ref().unwrap_or(&"".into()))
+			)
+			.map_err(FormatKeyError::Fmt),
+			_ => Err(FormatKeyError::UnknownKey),
+		}
+	}
+}
+
 impl Element for Blockquote {
 	fn location(&self) -> &Token { &self.location }
 
@@ -53,34 +80,32 @@ impl Element for Blockquote {
 		match compiler.target() {
 			HTML => {
 				let mut result = r#"<div class="blockquote-content">"#.to_string();
-				let format_author = || -> Result<String, runtime_fmt::Error> {
+				let format_author = || -> Result<String, FormatError> {
 					let mut result = String::new();
+
 					if self.cite.is_some() || self.author.is_some() {
 						result += r#"<p class="blockquote-author">"#;
-						match (&self.author, &self.cite) {
-							(Some(author), Some(cite)) => {
-								result += rt_format!(
-									self.style.format[0].as_str(),
-									author,
-									format!("<cite>{}</cite>", Compiler::sanitize(HTML, cite)),
-								)?
-								.as_str();
+						let fmt_pair = FmtPair(compiler.target(), &self);
+						match (self.author.is_some(), self.cite.is_some()) {
+							(true, true) => {
+								let args =
+									FormatArgs::new(self.style.format[0].as_str(), &fmt_pair);
+								args.status()?;
+								result += args.to_string().as_str();
 							}
-							(Some(author), None) => {
-								result += rt_format!(
-									self.style.format[1].as_str(),
-									Compiler::sanitize(HTML, author),
-								)?
-								.as_str()
+							(true, false) => {
+								let args =
+									FormatArgs::new(self.style.format[1].as_str(), &fmt_pair);
+								args.status()?;
+								result += args.to_string().as_str();
 							}
-							(None, Some(cite)) => {
-								result += rt_format!(
-									self.style.format[2].as_str(),
-									format!("<cite>{}</cite>", Compiler::sanitize(HTML, cite)),
-								)?
-								.as_str()
+							(false, false) => {
+								let args =
+									FormatArgs::new(self.style.format[2].as_str(), &fmt_pair);
+								args.status()?;
+								result += args.to_string().as_str();
 							}
-							(None, None) => panic!(""),
+							_ => panic!(""),
 						}
 						result += "</p>";
 					}
@@ -94,7 +119,7 @@ impl Element for Blockquote {
 					result += "<blockquote>";
 				}
 				if self.style.author_pos == Before {
-					result += format_author().as_str();
+					result += format_author().map_err(|err| err.to_string())?.as_str();
 				}
 
 				result += "<p>";
@@ -103,7 +128,7 @@ impl Element for Blockquote {
 				}
 				result += "</p></blockquote>";
 				if self.style.author_pos == After {
-					result += format_author().as_str();
+					result += format_author().map_err(|err| err.to_string())?.as_str();
 				}
 
 				result += "</div>";
@@ -371,9 +396,9 @@ mod blockquote_style {
 			Self {
 				author_pos: AuthorPos::After,
 				format: [
-					"A{author}, {cite}".into(),
-					"B{author}".into(),
-					"C{cite}".into(),
+					"{author}, {cite}".into(),
+					"{author}".into(),
+					"{cite}".into(),
 				],
 			}
 		}
@@ -409,8 +434,7 @@ AFTER
 			None,
 		));
 		let parser = LangParser::default();
-		let state = ParserState::new(&parser, None);
-		let (doc, _) = parser.parse(state, source, None);
+		let (doc, _) = parser.parse(ParserState::new(&parser, None), source, None);
 
 		validate_document!(doc.content().borrow(), 0,
 			Paragraph { Text{ content == "BEFORE" }; };
@@ -427,4 +451,44 @@ AFTER
 			Paragraph { Text{ content == "AFTER" }; };
 		);
 	}
+
+	#[test]
+	pub fn style() {
+		let source = Rc::new(SourceFile::with_content(
+			"".to_string(),
+			r#"
+@@style.blockquote = {
+	"author_pos": "Before",
+	"format": ["{cite} by {author}", "Author: {author}", "From: {cite}"]
+}
+PRE
+>[author=A, cite=B, url=C] Some entry
+> contin**ued here
+> **
+AFTER
+"#
+			.to_string(),
+			None,
+		));
+		let parser = LangParser::default();
+		let (_, state) = parser.parse(ParserState::new(&parser, None), source, None);
+
+		let style = state
+			.shared
+			.styles
+			.borrow()
+			.current(blockquote_style::STYLE_KEY)
+			.downcast_rc::<BlockquoteStyle>()
+			.unwrap();
+
+		assert_eq!(style.author_pos, Before);
+		assert_eq!(
+			style.format,
+			[
+				"{cite} by {author}".to_string(),
+				"Author: {author}".to_string(),
+				"From: {cite}".to_string()
+			]
+		);
+	}
 }