add constructor for pulldown-cmark options; fixes #1

src/lib.rs

@@ -1,20 +1,72 @@
+use pulldown_cmark::{Options, Parser};
 use roxy_core::roxy::Parse;
 
-#[derive(Debug)]
-pub struct MarkdownParser;
+#[derive(Debug, Default)]
+pub struct MarkdownParser {
+    options: Option<Options>
+}
 
 impl MarkdownParser {
     pub fn new() -> Self {
-        Self
+        Self::default()
+    }
+
+    pub fn with_options(options: Options) -> Self {
+        Self {
+            options: Some(options)
+        }
+    }
+
+    fn get_parser<'a, 'b>(&self, input: &'a str) -> Parser<'a, 'b> {
+        match self.options {
+            Some(options) => Parser::new_ext(input, options),
+            None => Parser::new(input),
+        }
     }
 }
 
 impl Parse for MarkdownParser {
     fn parse(&mut self, _path: &str, src: &[u8], dst: &mut Vec<u8>) -> Result<(), roxy_core::error::Error> {
         let src = String::from_utf8_lossy(src).to_string();
-        let parser = pulldown_cmark::Parser::new(src.as_str());
+        let parser = self.get_parser(src.as_str());
         pulldown_cmark::html::write_html(dst, parser)?;
         Ok(())
     }
 }
 
+#[cfg(test)]
+mod tests {
+    use pulldown_cmark::Options;
+    use roxy_core::roxy::Parse;
+
+    use crate::MarkdownParser;
+
+    #[test]
+    fn basic_markdown() {
+        let expected = b"<p><em>this</em> <strong>is</strong> <strong>some</strong> <a href=\"google.com\">markdown</a></p>\n";
+        let input = b"*this* **is** __some__ [markdown](google.com)";
+        let mut parser = MarkdownParser::new();
+        let mut buf = Vec::new();
+        let result = parser.parse("", input, &mut buf);
+        assert!(result.is_ok());
+        assert_eq!(buf, expected);
+    }
+
+    #[test]
+    fn tables() {
+        let expected = b"<table><thead><tr><th>Header 1</th><th>Header 2</th></tr></thead><tbody>
+<tr><td>Cell 1</td><td>Cell 2</td></tr>
+<tr><td>Cell 3</td><td>Cell 4</td></tr>
+</tbody></table>\n";
+
+        let input = b"| Header 1 | Header 2 |
+| -------- | -------- |
+| Cell 1   | Cell 2   |
+| Cell 3   | Cell 4   |";
+        let mut parser = MarkdownParser::with_options(Options::ENABLE_TABLES);
+        let mut buf = Vec::new();
+        let result = parser.parse("", input, &mut buf);
+        assert!(result.is_ok());
+        assert_eq!(buf, expected);
+    }
+}