feat: add inline equation support

1 files changed, 40 insertions, 0 deletions

diff --git a/src/xml/element.rs b/src/xml/element.rs
index 91e4130..0f44182 100644
--- a/src/xml/element.rs
+++ b/src/xml/element.rs
@@ -1,3 +1,5 @@
+use std::fmt::Display;
+
 #[derive(Debug, PartialEq, Eq, Clone)]
 pub struct Elements
 {
@@ -144,6 +146,20 @@ pub enum Element
     Comment(String),
 }
 
+impl Display for Element
+{
+    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result
+    {
+        match self {
+            Self::Tagged(tagged) => tagged.fmt(formatter),
+            Self::Text(text) => text.fmt(formatter),
+            Self::Comment(comment) => {
+                formatter.write_fmt(format_args!("<!--{comment}-->"))
+            }
+        }
+    }
+}
+
 #[derive(Debug, PartialEq, Eq, Clone)]
 pub struct Tagged
 {
@@ -152,6 +168,30 @@ pub struct Tagged
     attributes: Vec<Attribute>,
 }
 
+impl Display for Tagged
+{
+    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result
+    {
+        let name = &self.name;
+
+        let attrs = self
+            .attributes
+            .iter()
+            .map(|attr| {
+                format!("{}=\"{}\" ", attr.key, String::from_utf8_lossy(&attr.value))
+            })
+            .collect::<String>();
+
+        let child_elements = self
+            .child_elements
+            .into_iter()
+            .map(ToString::to_string)
+            .collect::<String>();
+
+        formatter.write_fmt(format_args!("<{name} {attrs}>{child_elements}</{name}>",))
+    }
+}
+
 impl Tagged
 {
     pub fn new<Name, ChildElements, Attrs>(