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[YAML] Issue #26065: leading spaces in YAML multi-line string literals #26067

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[YAML] Issue #26065: leading spaces in YAML multi-line string literals #26067

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752f8d2
Test for Issue #26065: leading spaces in YAML multi-line string literals
tamc Feb 6, 2018
272fe5a
YAML mutli-line literal: emit block indentiation indicator
tamc Feb 6, 2018
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5 changes: 4 additions & 1 deletion src/Symfony/Component/Yaml/Dumper.php
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Original file line number Diff line number Diff line change
Expand Up @@ -98,7 +98,10 @@ public function dump($input, $inline = 0, $indent = 0, $flags = 0)

foreach ($input as $key => $value) {
if ($inline >= 1 && Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK & $flags && is_string($value) && false !== strpos($value, "\n") && false === strpos($value, "\r\n")) {
$output .= sprintf("%s%s%s |\n", $prefix, $dumpAsMap ? Inline::dump($key, $flags).':' : '-', '');
// If the first line starts with a space character, the spec requires a blockIndicationIndicator
// http://www.yaml.org/spec/1.2/spec.html#id2793979
$blockIndentationIndicator = (' ' === substr($value, 0, 1)) ? (string) $this->indentation : '';
$output .= sprintf("%s%s%s |%s\n", $prefix, $dumpAsMap ? Inline::dump($key, $flags).':' : '-', '', $blockIndentationIndicator);

foreach (preg_split('/\n|\r\n/', $value) as $row) {
$output .= sprintf("%s%s%s\n", $prefix, str_repeat(' ', $this->indentation), $row);
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11 changes: 11 additions & 0 deletions src/Symfony/Component/Yaml/Tests/DumperTest.php
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Expand Up @@ -454,6 +454,17 @@ public function testDumpMultiLineStringAsScalarBlock()
$this->assertSame(file_get_contents(__DIR__.'/Fixtures/multiple_lines_as_literal_block.yml'), $this->dumper->dump($data, 2, 0, Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK));
}

public function testDumpMultiLineStringAsScalarBlockWhenFirstLineHasLeadingSpace()
{
$data = array(
'data' => array(
'multi_line' => " the first line has leading spaces\nThe second line does not.",
),
);

$this->assertSame(file_get_contents(__DIR__.'/Fixtures/multiple_lines_as_literal_block_leading_space_in_first_line.yml'), $this->dumper->dump($data, 2, 0, Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK));
}

public function testCarriageReturnIsMaintainedWhenDumpingAsMultiLineLiteralBlock()
{
$this->assertSame("- \"a\\r\\nb\\nc\"\n", $this->dumper->dump(array("a\r\nb\nc"), 2, 0, Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK));
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4 changes: 4 additions & 0 deletions ...onent/Yaml/Tests/Fixtures/multiple_lines_as_literal_block_leading_space_in_first_line.yml
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@@ -0,0 +1,4 @@
data:
multi_line: |4
the first line has leading spaces
The second line does not.