Revert "replace latex with mathml"

This reverts commit 9b9065eb1c.

src/misc/markdown.rs

@@ -53,7 +53,7 @@ pub fn get_options() -> ComrakOptions {
             github_pre_lang: false,
             full_info_string: true,
             width: 0, // 0 mean disabled?
-            unsafe_: false, // could be true? change by metadata could be good for compatibility
+            unsafe_: true,
             escape: false, // may change in the future?
             list_style: ListStyleType::Dash,
             sourcepos: false,
@@ -64,11 +64,11 @@ pub fn get_options() -> ComrakOptions {
 pub fn read(raw_text: &str) -> File {
     let arena = Arena::new();
 
-    let options = get_options();
-    let root = parse_document(&arena, raw_text, &options);
-
     // LaTeX conversion to MathML
-    latex_replace(root);
+    let text = latex2mathml::replace(raw_text).unwrap_or_default();
+
+    let options = get_options();
+    let root = parse_document(&arena, &text, &options);
 
     // Find metadata
     let metadata = get_metadata(root);
@@ -135,37 +135,3 @@ fn check_code<'a>(root: &'a AstNode<'a>, blacklist: &[String]) -> bool {
         _ => false,
     })
 }
-
-/// Call the `latex2mathml::replace` function when LaTeX formula can appears
-/// without breaking things
-fn latex_replace<'a>(root: &'a AstNode<'a>) {
-    root.children()
-        .for_each(|node| match &mut node.data.borrow_mut().value {
-            // Detect in blocks
-            NodeValue::Paragraph
-            | NodeValue::BlockQuote
-            | NodeValue::TableCell
-
-            // Detect in inlines
-            | NodeValue::Emph
-            | NodeValue::Strong
-            | NodeValue::Strikethrough
-            | NodeValue::Superscript => {
-                latex_replace(node)
-            }
-
-            // Contains text
-            NodeValue::Text(ref mut text) => {
-                *text = latex2mathml::replace(text).unwrap_or(text.to_owned())
-            },
-            NodeValue::Link(ref mut link) | NodeValue::Image(ref mut link) => {
-                let mut clone = link.clone();
-                clone.title = latex2mathml::replace(&link.title).unwrap_or(clone.title);
-
-                *link = clone;
-            },
-
-            // Everything not captured can't contains math
-            _ => (),
-        });
-}