Implement the traditional -h option for man(1): show the SYNOPSIS only.

As usual, we get mandoc -h and apropos -h for free.
Try stuff like "apropos -h In=dirent" or "apropos -h Fa=timespec".

Only useful for terminal output, so -Tps, -Tpdf, -Thtml ignore -h for now.

1 files changed, 24 insertions, 17 deletions

diff --git a/mdoc_term.c b/mdoc_term.c
index 4b4c4248..c010dfbb 100644
--- a/mdoc_term.c
+++ b/mdoc_term.c
@@ -252,34 +252,44 @@ static	const struct termact termacts[MDOC_MAX] = {
 void
 terminal_mdoc(void *arg, const struct mdoc *mdoc)
 {
-	const struct mdoc_node	*n;
 	const struct mdoc_meta	*meta;
+	struct mdoc_node	*n;
 	struct termp		*p;
 
 	p = (struct termp *)arg;
 
-	if (0 == p->defindent)
-		p->defindent = 5;
-
 	p->overstep = 0;
-	p->maxrmargin = p->defrmargin;
+	p->rmargin = p->maxrmargin = p->defrmargin;
 	p->tabwidth = term_len(p, 5);
 
 	if (NULL == p->symtab)
 		p->symtab = mchars_alloc();
 
-	n = mdoc_node(mdoc);
+	n = mdoc_node(mdoc)->child;
 	meta = mdoc_meta(mdoc);
 
-	term_begin(p, print_mdoc_head, print_mdoc_foot, meta);
-
-	if (n->child) {
-		if (MDOC_Sh != n->child->tok)
-			term_vspace(p);
-		print_mdoc_nodelist(p, NULL, meta, n->child);
+	if (p->synopsisonly) {
+		while (n != NULL) {
+			if (n->tok == MDOC_Sh && n->sec == SEC_SYNOPSIS) {
+				if (n->child->next->child != NULL)
+					print_mdoc_nodelist(p, NULL,
+					    meta, n->child->next->child);
+				term_newln(p);
+				break;
+			}
+			n = n->next;
+		}
+	} else {
+		if (p->defindent == 0)
+			p->defindent = 5;
+		term_begin(p, print_mdoc_head, print_mdoc_foot, meta);
+		if (n != NULL) {
+			if (n->tok != MDOC_Sh)
+				term_vspace(p);
+			print_mdoc_nodelist(p, NULL, meta, n);
+		}
+		term_end(p);
 	}
-
-	term_end(p);
 }
 
 static void
@@ -463,9 +473,6 @@ print_mdoc_head(struct termp *p, const void *arg)
 	 * switches on the manual section.
 	 */
 
-	p->offset = 0;
-	p->rmargin = p->maxrmargin;
-
 	assert(meta->vol);
 	if (NULL == meta->arch)
 		volume = mandoc_strdup(meta->vol);