rustdoc: Escape HTML special characters

src/rustdoc/html_escape_pass.rs

@@ -0,0 +1,24 @@
+#[doc = "Escapes characters that are not valid in HTML"];
+
+export mk_pass;
+
+fn mk_pass() -> pass {
+    desc_pass::mk_pass("html_escape", escape)
+}
+
+fn escape(s: str) -> str {
+    let s = str::replace(s, "&", "&");
+    let s = str::replace(s, "<", "&lt;");
+    let s = str::replace(s, ">", "&gt;");
+    let s = str::replace(s, "\"", "&quot;");
+    ret s;
+}
+
+#[test]
+fn test() {
+    assert escape("<") == "&lt;";
+    assert escape(">") == "&gt;";
+    assert escape("&") == "&amp;";
+    assert escape("\"") == "&quot;";
+    assert escape("<>&\"") == "&lt;&gt;&amp;&quot;";
+}

src/rustdoc/rustdoc.rc

@@ -39,3 +39,4 @@ mod sort_item_type_pass;
 mod reexport_pass;
 mod par;
 mod page_pass;
+mod html_escape_pass;

src/rustdoc/rustdoc.rs

@@ -149,6 +149,7 @@ fn run(config: config::config) {
             desc_to_brief_pass::mk_pass(),
             trim_pass::mk_pass(),
             unindent_pass::mk_pass(),
+            html_escape_pass::mk_pass(),
             sort_item_name_pass::mk_pass(),
             sort_item_type_pass::mk_pass(),
             markdown_index_pass::mk_pass(config),