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-rw-r--r--validate.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/validate.c b/validate.c
index 7a1151db..a3f69ecd 100644
--- a/validate.c
+++ b/validate.c
@@ -21,6 +21,14 @@
#include "private.h"
+/*
+ * Pre- and post-validate macros as they're parsed. Pre-validation
+ * occurs when the macro has been detected and its arguments parsed.
+ * Post-validation occurs when all child macros have also been parsed.
+ * In the ELEMENT case, this is simply the parameters of the macro; in
+ * the BLOCK case, this is the HEAD, BODY, TAIL and so on.
+ */
+
typedef int (*v_pre)(struct mdoc *, struct mdoc_node *);
typedef int (*v_post)(struct mdoc *);