From 4af1e1e3a8ebfddcc11a189254d60fc4ad74cd59 Mon Sep 17 00:00:00 2001
From: Humm <hummsmith42@gmail.com>
Date: Fri, 14 Jan 2022 00:56:18 +0000
Subject: [PATCH] simplify list output

For lists, plain old indented paragraphs are the perfect tool.  To not
have vertical space between list items, we use .PD 0.

Should the many needless .PP be removed, will the .PD 0 have to be moved
after the first list item, such that that introduces vertical space
after the last paragraph.

---
 src/main.c | 20 +++-----------------

diff --git a/src/main.c b/src/main.c
index 5bfad7b9d37a92df236b22b64c4e2c4b40536414..46b4aa824e527732ae3689582bbf6ae872ddbe32 100644
--- a/src/main.c
+++ b/src/main.c
@@ -329,24 +329,12 @@ 	return i;
 }
 
 static void list_header(struct parser *p, int *num) {
-	fprintf(p->output, ".RS 4\n");
-	fprintf(p->output, ".ie n \\{\\\n");
-	if (*num == -1) {
-		fprintf(p->output, "\\h'-0%d'%s\\h'+03'\\c\n",
-				*num >= 10 ? 5 : 4, "\\(bu");
-	} else {
-		fprintf(p->output, "\\h'-0%d'%d.\\h'+03'\\c\n",
-				*num >= 10 ? 5 : 4, *num);
-	}
-	fprintf(p->output, ".\\}\n");
-	fprintf(p->output, ".el \\{\\\n");
 	if (*num == -1) {
 		fprintf(p->output, ".IP %s 4\n", "\\(bu");
 	} else {
 		fprintf(p->output, ".IP %d. 4\n", *num);
 		*num = *num + 1;
 	}
-	fprintf(p->output, ".\\}\n");
 }
 
 static void parse_list(struct parser *p, int *indent, int num) {
@@ -354,6 +342,7 @@ 	uint32_t ch;
 	if ((ch = parser_getch(p)) != ' ') {
 		parser_fatal(p, "Expected space before start of list entry");
 	}
+	fprintf(p->output, ".PD 0\n");
 	list_header(p, &num);
 	parse_text(p);
 	do {
@@ -373,18 +362,15 @@ 		case '.':
 			if ((ch = parser_getch(p)) != ' ') {
 				parser_fatal(p, "Expected space before start of list entry");
 			}
-			roff_macro(p, "RE", NULL);
 			list_header(p, &num);
 			parse_text(p);
 			break;
 		default:
-			fprintf(p->output, "\n");
+			roff_macro(p, "PD", NULL);
 			parser_pushch(p, ch);
-			goto ret;
+			return;
 		}
 	} while (ch != UTF8_INVALID);
-ret:
-	roff_macro(p, "RE", NULL);
 }
 
 static void parse_literal(struct parser *p, int *indent) {

-- 
2.48.1