add: unordered list

Author: momeemt

src/lib.rs

@@ -3,4 +3,5 @@ pub mod bold;
 pub mod footnote;
 pub mod headings;
 pub mod italic;
+pub mod list;
 pub mod quote;

src/list.rs

@@ -0,0 +1,38 @@
+use brack_sdk_rs::{MetaData, Type, Value};
+use extism_pdk::{plugin_fn, FnResult, Json, WithReturnCode};
+
+#[plugin_fn]
+pub fn metadata_unordered_list() -> FnResult<Json<MetaData>> {
+    Ok(Json(MetaData {
+        command_name: "list".to_string(),
+        call_name: "unordered_list".to_string(),
+        argument_types: vec![("elems".to_string(), Type::TArray(Box::new(Type::TInline)))],
+        return_type: Type::TBlock,
+    }))
+}
+
+#[plugin_fn]
+pub fn unordered_list(Json(args): Json<Vec<Value>>) -> FnResult<String> {
+    if args.len() != 1 {
+        return Err(WithReturnCode::new(anyhow::anyhow!("Usage: [std.list elem1, elem2, ..., elemN]"), 1));
+    }
+    let elems = match &args[0] {
+        Value::TextArray(t) => t,
+        _ => {
+            return Err(WithReturnCode::new(
+                anyhow::anyhow!("elems must be Value::TextArray"),
+                1,
+            ))
+        }
+    };
+    let mut result = String::new();
+    for elem in elems {
+        if elem.starts_with("<ul>") && elem.ends_with("</ul>") {
+            result += elem;
+            continue;
+        }
+        result += &format!("<li>{}</li>", elem);
+    }
+    Ok(format!("<ul>{}</ul>", result))
+}
+