From da3cd52d0a58e1c0042cb5f9dd8293e40e8f310d Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Sun, 07 Oct 2018 10:40:39 -0400
Subject: [PATCH] Add support for explicit line breaks

---
 scdoc.5.scd |  7 +++++++
 src/main.c  | 26 ++++++++++++++++++++++++++

diff --git a/scdoc.5.scd b/scdoc.5.scd
index 293193ffb1a099b7a991d4a6c813b97a05f1bb61..b94952e8c1b4f2901f7c18780512fbfde496a49a 100644
--- a/scdoc.5.scd
+++ b/scdoc.5.scd
@@ -35,6 +35,13 @@ ## PARAGRAPHS
 
 Begin a new paragraph with an empty line.
 
+## LINE BREAKS
+
+Insert a line break by ending a line with \+\+.
+
+The result looks++
+like this.
+
 ## FORMATTING
 
 Text can be made *bold* or _underlined_ with asterisks and underscores: \*bold\*
diff --git a/src/main.c b/src/main.c
index cb6b5bd9d57dd530d822a17707a46bc257ee2c61..3765f7e425ff50a343471a74fa896ea56cee4852 100644
--- a/src/main.c
+++ b/src/main.c
@@ -133,6 +133,29 @@ 	}
 	p->flags ^= fmt;
 }
 
+static void parse_linebreak(struct parser *p) {
+	uint32_t plus = parser_getch(p);
+	if (plus != '+') {
+		fprintf(p->output, "+");
+		parser_pushch(p, plus);
+		return;
+	}
+	uint32_t lf = parser_getch(p);
+	if (lf != '\n') {
+		fprintf(p->output, "+");
+		parser_pushch(p, plus);
+		parser_pushch(p, '\n');
+		return;
+	}
+	uint32_t ch = parser_getch(p);
+	if (ch == '\n') {
+		parser_fatal(
+				p, "Explicit line breaks cannot be followed by a blank line");
+	}
+	parser_pushch(p, ch);
+	fprintf(p->output, "\n.br\n");
+}
+
 static void parse_text(struct parser *p) {
 	uint32_t ch;
 	int i = 0;
@@ -153,6 +176,9 @@ 			parse_format(p, FORMAT_BOLD);
 			break;
 		case '_':
 			parse_format(p, FORMAT_UNDERLINE);
+			break;
+		case '+':
+			parse_linebreak(p);
 			break;
 		case '\n':
 			utf8_fputch(p->output, ch);

-- 
2.48.1