diff --git a/src/Symfony/Component/Yaml/CHANGELOG.md b/src/Symfony/Component/Yaml/CHANGELOG.md
index 75f46e9f6fba7..a2da8ad964bba 100644
--- a/src/Symfony/Component/Yaml/CHANGELOG.md
+++ b/src/Symfony/Component/Yaml/CHANGELOG.md
@@ -4,6 +4,8 @@ CHANGELOG
3.1.0
-----
+ * Added support for dumping multi line strings as literal blocks.
+
* Added support for parsing base64 encoded binary data when they are tagged
with the `!!binary` tag.
diff --git a/src/Symfony/Component/Yaml/Dumper.php b/src/Symfony/Component/Yaml/Dumper.php
index 6516e4cb22d6a..576e622a62ae0 100644
--- a/src/Symfony/Component/Yaml/Dumper.php
+++ b/src/Symfony/Component/Yaml/Dumper.php
@@ -84,6 +84,16 @@ public function dump($input, $inline = 0, $indent = 0, $flags = 0)
$isAHash = array_keys($input) !== range(0, count($input) - 1);
foreach ($input as $key => $value) {
+ if ($inline > 1 && Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK & $flags && is_string($value) && false !== strpos($value, "\n")) {
+ $output .= sprintf("%s%s%s |\n", $prefix, $isAHash ? Inline::dump($key, $flags).':' : '-', '');
+
+ foreach (preg_split('/\n|\r\n/', $value) as $row) {
+ $output .= sprintf("%s%s%s\n", $prefix, str_repeat(' ', $this->indentation), $row);
+ }
+
+ continue;
+ }
+
$willBeInlined = $inline - 1 <= 0 || !is_array($value) || empty($value);
$output .= sprintf('%s%s%s%s',
diff --git a/src/Symfony/Component/Yaml/Tests/DumperTest.php b/src/Symfony/Component/Yaml/Tests/DumperTest.php
index 12c67b07c0b89..8df0a980ca0a8 100644
--- a/src/Symfony/Component/Yaml/Tests/DumperTest.php
+++ b/src/Symfony/Component/Yaml/Tests/DumperTest.php
@@ -332,6 +332,21 @@ public function objectAsMapProvider()
return $tests;
}
+
+ public function testDumpMultiLineStringAsScalarBlock()
+ {
+ $data = array(
+ 'data' => array(
+ 'single_line' => 'foo bar baz',
+ 'multi_line' => "foo\nline with trailing spaces:\n \nbar\r\ninteger like line:\n123456789\nempty line:\n\nbaz",
+ 'nested_inlined_multi_line_string' => array(
+ 'inlined_multi_line' => "foo\nbar\r\nempty line:\n\nbaz",
+ ),
+ ),
+ );
+
+ $this->assertSame(file_get_contents(__DIR__.'/Fixtures/multiple_lines_as_literal_block.yml'), $this->dumper->dump($data, 3, 0, Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK));
+ }
}
class A
diff --git a/src/Symfony/Component/Yaml/Tests/Fixtures/multiple_lines_as_literal_block.yml b/src/Symfony/Component/Yaml/Tests/Fixtures/multiple_lines_as_literal_block.yml
new file mode 100644
index 0000000000000..5994f323062e3
--- /dev/null
+++ b/src/Symfony/Component/Yaml/Tests/Fixtures/multiple_lines_as_literal_block.yml
@@ -0,0 +1,14 @@
+data:
+ single_line: 'foo bar baz'
+ multi_line: |
+ foo
+ line with trailing spaces:
+
+ bar
+ integer like line:
+ 123456789
+ empty line:
+
+ baz
+ nested_inlined_multi_line_string:
+ inlined_multi_line: "foo\nbar\r\nempty line:\n\nbaz"
diff --git a/src/Symfony/Component/Yaml/Yaml.php b/src/Symfony/Component/Yaml/Yaml.php
index 2199c07848566..be21f2c3b7cc3 100644
--- a/src/Symfony/Component/Yaml/Yaml.php
+++ b/src/Symfony/Component/Yaml/Yaml.php
@@ -28,6 +28,7 @@ class Yaml
const PARSE_DATETIME = 32;
const DUMP_BASE64_BINARY_DATA = 64;
const DUMP_OBJECT_AS_MAP = 128;
+ const DUMP_MULTI_LINE_LITERAL_BLOCK = 256;
/**
* Parses YAML into a PHP value.
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