Common subdirectories: discount-2.0.3/Plan9 and discount-2.0.3-side/Plan9
Common subdirectories: discount-2.0.3/tests and discount-2.0.3-side/tests
diff -u discount-2.0.3/toc.c discount-2.0.3-side/toc.c
--- discount-2.0.3/toc.c	2010-11-27 08:44:44.000000000 +0200
+++ discount-2.0.3-side/toc.c	2010-12-31 18:25:17.000000000 +0200
@@ -21,6 +21,7 @@
 {
     Paragraph *tp, *srcp;
     int last_hnumber = 0;
+    int last_limit = 6;
     Cstring res;
     
     *doc = 0;
@@ -31,6 +32,26 @@
     CREATE(res);
     RESERVE(res, 100);
 
+    /*
+     * Find the minimal heading level, useful in cases
+     * when h1 is already in use (like article title and
+     * in markdown only h2, h3 or even higher are used
+     *
+     * So list nesting would be done from min_header
+     */
+    for ( tp = p->code; tp ; tp = tp->next ) {
+	if ( tp->typ == SOURCE ) {
+	    for ( srcp = tp->down; srcp; srcp = srcp->next ) {
+		if ( srcp->typ == HDR && srcp->text ) {
+			if(srcp->hnumber < last_limit + 1)
+				last_limit = srcp->hnumber - 1;
+		}
+	    }
+	}
+    }
+
+    last_hnumber = last_limit;
+
     for ( tp = p->code; tp ; tp = tp->next ) {
 	if ( tp->typ == SOURCE ) {
 	    for ( srcp = tp->down; srcp; srcp = srcp->next ) {
@@ -45,7 +66,7 @@
 
 		    while ( srcp->hnumber > last_hnumber ) {
 			Csprintf(&res, "%*s%s<ul>\n", last_hnumber, "",
-				    last_hnumber ? "<li>" : "");
+				    ( last_hnumber != last_limit )? "<li>" : "");
 			++last_hnumber;
 		    }
 		    Csprintf(&res, "%*s<li><a href=\"#", srcp->hnumber, "");
@@ -61,9 +82,9 @@
         }
     }
 
-    while ( last_hnumber > 0 ) {
+    while ( last_hnumber > last_limit ) {
 	--last_hnumber;
-	Csprintf(&res, last_hnumber ? "%*s</ul></li>\n" : "%*s</ul>\n", last_hnumber, "");
+	Csprintf(&res, (last_hnumber != last_limit ) ? "%*s</ul></li>\n" : "%*s</ul>\n", last_hnumber, "");
     }
 			/* HACK ALERT! HACK ALERT! HACK ALERT! */
     *doc = T(res);	/* we know that a T(Cstring) is a character pointer */
Common subdirectories: discount-2.0.3/tools and discount-2.0.3-side/tools