From 9ee3928754693565fa561e2b6fda4058948d1d56 Mon Sep 17 00:00:00 2001
From: theamarin <36608650+theamarin@users.noreply.github.com>
Date: Mon, 5 Jul 2021 05:30:04 +0200
Subject: [PATCH] Prevent trailing spaces when emitting literal strings (#1005)

---
 src/emitterutils.cpp              |  4 ++--
 test/integration/emitter_test.cpp | 14 ++++++++++++++
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/emitterutils.cpp b/src/emitterutils.cpp
index 0113c45..c6ad5e5 100644
--- a/src/emitterutils.cpp
+++ b/src/emitterutils.cpp
@@ -366,13 +366,13 @@ bool WriteDoubleQuotedString(ostream_wrapper& out, const std::string& str,
 bool WriteLiteralString(ostream_wrapper& out, const std::string& str,
                         std::size_t indent) {
   out << "|\n";
-  out << IndentTo(indent);
   int codePoint;
   for (std::string::const_iterator i = str.begin();
        GetNextCodePointAndAdvance(codePoint, i, str.end());) {
     if (codePoint == '\n') {
-      out << "\n" << IndentTo(indent);
+      out << "\n";
     } else {
+      out<< IndentTo(indent);
       WriteCodePoint(out, codePoint);
     }
   }
diff --git a/test/integration/emitter_test.cpp b/test/integration/emitter_test.cpp
index 66198a6..f1d6308 100644
--- a/test/integration/emitter_test.cpp
+++ b/test/integration/emitter_test.cpp
@@ -382,6 +382,20 @@ TEST_F(EmitterTest, ScalarFormat) {
       "crazy\tsymbols that we like");
 }
 
+TEST_F(EmitterTest, LiteralWithoutTrailingSpaces) {
+  out << YAML::BeginMap;
+  out << YAML::Key << "key";
+  out << YAML::Value << YAML::Literal;
+  out << "expect that with two newlines\n\n"
+         "no spaces are emitted in the empty line";
+  out << YAML::EndMap;
+
+  ExpectEmit(
+      "key: |\n"
+      "  expect that with two newlines\n\n"
+      "  no spaces are emitted in the empty line");
+}
+
 TEST_F(EmitterTest, AutoLongKeyScalar) {
   out << BeginMap;
   out << Key << Literal << "multi-line\nscalar";