From 29306d8dde650f5ac2bcc067f3c1d3bcfcac7a1d Mon Sep 17 00:00:00 2001
From: elij <elij@wundrd.net>
Date: Sun, 26 Jan 2025 12:18:58 -0800
Subject: [PATCH] strip indentation after a hard line break `++`

*   strip indentation (`\t` and ' ') after a hard line break `++`
*   add some tests to cover these cases

---
 src/main.c       | 11 +++++++++++
 test/line-breaks | 10 ++++++++++
 test/lists       | 20 ++++++++++++++++++++

diff --git a/src/main.c b/src/main.c
index fa733c3377e105cf44efb8dabf6e5bb380674ec3..7c4d4af9021e81a6c80e362025d7095a930c8b27 100644
--- a/src/main.c
+++ b/src/main.c
@@ -200,8 +200,18 @@ }
 
 static void parse_text(struct parser *p) {
 	uint32_t ch, next, last = ' ';
+	bool chomp_next_indent = false;
 	int i = 0;
 	while ((ch = parser_getch(p)) != UTF8_INVALID) {
+		// skip indentation if last was a linebreak
+		// and we need to chomp indentation
+		if (chomp_next_indent) {
+			if (ch == '\t' || ch == ' ') {
+				continue;
+			}
+			chomp_next_indent = false;
+		}
+
 		switch (ch) {
 		case '\\':
 			ch = parser_getch(p);
@@ -235,6 +245,7 @@ 			break;
 		case '+':
 			if (parse_linebreak(p)) {
 				last = '\n';
+				chomp_next_indent = true;
 			}
 			break;
 		case '\n':
diff --git a/test/line-breaks b/test/line-breaks
index 83dc70364076baed1b96a58a5e9a4c751acc47b9..9c28089b589a0ffbd8b8724aaae2d492005bcb3d 100755
--- a/test/line-breaks
+++ b/test/line-breaks
@@ -10,6 +10,16 @@ world
 EOF
 end 0
 
+begin "Handles line break with indentation"
+scdoc <<EOF | grep -A1 '^\.br$' | grep '^world' >/dev/null
+test(8)
+
+test
+	hello++
+	world
+EOF
+end 0
+
 begin "Disallows empty line after line break"
 scdoc <<EOF >/dev/null
 test(8)
diff --git a/test/lists b/test/lists
new file mode 100755
index 0000000000000000000000000000000000000000..4865f43e45bb0d5ca05b225f842f81a6fad2d3db
--- /dev/null
+++ b/test/lists
@@ -0,0 +1,20 @@
+#!/bin/sh
+. test/lib.sh
+
+begin "Handles lists"
+scdoc <<EOF | grep -A1 '.IP \\(bu 4' | grep '^Item' >/dev/null
+test(8)
+
+- Item 1
+- Item 2
+EOF
+end 0
+
+begin "Handles line break in list"
+scdoc <<EOF | grep -A1 '^\.br$' | grep '^Where' >/dev/null
+test(8)
+
+- Item 1++
+  Where am I rendered?
+EOF
+end 0
\ No newline at end of file

-- 
2.48.1