1 files changed, 26 insertions, 0 deletions
diff --git a/src/md/panhelper.rs b/src/md/panhelper.rs
new file mode 100644
index 0000000..f7ab801
--- /dev/null
+++ b/src/md/panhelper.rs
@@ -0,0 +1,26 @@
+use pandoc_ast::Attr;
+
+/// Is a code block marked as being of a given type?
+pub fn is_class(attr: &Attr, class: &str) -> bool {
+    let (_id, classes, _kvpairs) = attr;
+    classes.iter().any(|s| s == class)
+}
+
+/// Utility function to find key/value pairs from an attribute
+pub fn find_attr_kv<'a>(attr: &'a Attr, key: &'static str) -> impl Iterator<Item = &'a str> {
+    attr.2.iter().flat_map(move |(key_, value)| {
+        if key == key_ {
+            Some(value.as_ref())
+        } else {
+            None
+        }
+    })
+}
+
+/// Get the filename for a fenced code block tagged .file.
+///
+/// The filename is the first (and presumably only) identifier for the
+/// block.
+pub fn get_filename(attr: &Attr) -> String {
+    attr.0.to_string()
+}