add link number navigation

1 files changed, 16 insertions, 0 deletions

diff --git a/nav.c b/nav.c
index 83826dc..0c31bed 100644
--- a/nav.c
+++ b/nav.c
@@ -3,6 +3,7 @@
 
 #include "nav.h"
 #include "net.h"
+#include "err.h"
 #include "parse.h"
 
 /* history */
@@ -70,10 +71,17 @@ void nav_pg_up(struct nav_state *ns) {
 	nav_pg_down(ns);
 }
 
+#define MARGIN 8
+
 void nav_pg_down(struct nav_state *ns) {
 	size_t lines = pg_lines();
 	while (lines--) {
 		struct doc_line *l = nav_cur_line(ns);
+		int n = 0;
+		if (l->link != DOC_LINK_NONE) {
+			n = printf("[%hu]", l->link + 1);
+		}
+		while (n++ < MARGIN) putchar(' ');
 		fwrite(l->txt, 1, l->len, stdout);
 		putchar('\n');
 		if (!nav_line_down(ns)) break;
@@ -111,5 +119,13 @@ int nav_to(struct nav_state *ns, const char *url) {
 }
 
 int nav_link_nr(struct nav_state *ns, unsigned long link_nr) {
+	struct doc *d = &ns->histv[ns->cur_doc];
+	const char *url = doc_get_link(d, link_nr);
+	if (url) {
+		puts(url);
+		return nav_to(ns, url);
+	} else {
+		perr("invalid link number");
+	}
 	return 0;
 }