1 files changed, 33 insertions, 0 deletions
diff --git a/newtablink.py b/newtablink.py
new file mode 100644
index 0000000..df42833
--- /dev/null
+++ b/newtablink.py
@@ -0,0 +1,33 @@
+"""
+Adds 'target="_blank"' to links, so they open in a new tab.
+Filter base urls can be added so that every absolute path link containing the filter is ignored by the extension.
+
+Usage:
+MyExtension = get_new_tab_links(["example.org"])
+"""
+import marko.inline
+from marko.helpers import MarkoExtension
+
+
+def __create_new_tab_links(filters: list[str]):
+    class NewTabLinks:
+        FILTERS = filters
+
+        def render_link(self, element: marko.inline.Link) -> str:
+            dest_lower = element.dest.lower()
+
+            if (dest_lower.startswith("http://") or dest_lower.startswith("https://")) and not any((elem in dest_lower for elem in NewTabLinks.FILTERS)):
+                return f"<a href=\"{element.dest}\" target=\"_blank\">{self.render_children(element)}</a>"
+
+            return super().render_link(element)
+
+    return NewTabLinks
+
+
+def get_new_tab_links(filters: list[str] = None):
+    if filters is None:
+        filters = []
+
+    return MarkoExtension(
+        renderer_mixins=[__create_new_tab_links(filters)]
+    )