+# usage: export_article [input md]
+define export_article
+ export ARTICLE_TITLE=`./$(MODULE_DIR)/md-header "$(1)" name`
+ export PUBLISHED_DATE=`./$(MODULE_DIR)/md-header "$(1)" published`
+ # vvv this is sorta ugly vvv
+ export ARTICLE_URL="$(SITEURL)/$(ARTICLE_PATH)/$(subst .md,.html,$(notdir "$(1)"))"
+endef
+