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[YAML] Unexpected characters using YAML compact syntax #37876

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[YAML] Unexpected characters using YAML compact syntax #37876

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24fc166
[YAML] Unexpected characters using YAML compact syntax #37788
RevZer0 Aug 18, 2020
c899773
Fix coding standard issues
RevZer0 Aug 18, 2020
87deb21
Fix Yaml component parser exception messages format
RevZer0 Aug 18, 2020
9708c1a
Fix tests after exceptions format update
RevZer0 Aug 18, 2020
2670518
Rollback exception formatting
RevZer0 Aug 18, 2020
80445f8
Update tests so HEREDOC syntax became suitable on PHP < 7.3 versions
RevZer0 Aug 18, 2020
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[YAML] Unexpected characters using YAML compact syntax #37788
  • Loading branch information
@RevZer0
RevZer0 committed Aug 18, 2020
commit 24fc166f8375e71316c80fbaff66586700d2326e
38 changes: 26 additions & 12 deletions src/Symfony/Component/Yaml/Parser.php
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ class Parser
private $skippedLineNumbers = [];
private $locallySkippedLineNumbers = [];
private $refsBeingParsed = [];
private $openMappingCount = 0;

/**
* Parses a YAML file into a PHP value.
Expand Down Expand Up @@ -1208,18 +1209,12 @@ private function lexInlineMapping(string $yaml): string
if ('' === $yaml || '{' !== $yaml[0]) {
throw new \InvalidArgumentException(sprintf('"%s" is not a sequence.', $yaml));
}

for ($i = 1; isset($yaml[$i]) && '}' !== $yaml[$i]; ++$i) {
}

if (isset($yaml[$i]) && '}' === $yaml[$i]) {
return $yaml;
}

$lines = [$yaml];

while ($this->moveToNextLine()) {
$lines[] = $this->currentLine;
$this->openMappingCount = 0;
$lines = [
$this->calculateLineOpenMappings($yaml)
];
while (!$this->allMappingIsClosed() && $this->moveToNextLine()) {
$lines[] = $this->calculateLineOpenMappings($this->currentLine);
}

return implode("\n", $lines);
Expand Down Expand Up @@ -1253,4 +1248,23 @@ private function lexInlineSequence(string $yaml): string

return $value;
}

private function allMappingIsClosed(): bool
{
return 0 === $this->openMappingCount;
}

private function calculateLineOpenMappings(string $yamlLine): string
{
for ($i = 0; isset($yamlLine[$i]); ++$i) {
if ('{' === $yamlLine[$i]) {
++$this->openMappingCount;
}
if ('}' === $yamlLine[$i]) {
--$this->openMappingCount;
}
}

return trim($yamlLine);
}
}
47 changes: 47 additions & 0 deletions src/Symfony/Component/Yaml/Tests/ParserTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -2414,6 +2414,53 @@ public function testParseValueWithNegativeModifiers()
$this->parser->parse($yaml)
);
}

/**
* Test that covers #37788 issue
*
* @dataProvider validMappingSequenceProvider
*/
public function testParametersAfterMappingSequence(string $yaml, array $parsed): void
{
self::assertSame($parsed, $this->parser->parse($yaml));
}

public function validMappingSequenceProvider(): iterable
{
$expected = [
'map' => [
'key' => 'value',
'a' => 'b'
],
'param' => 'some'
];

yield "multiline syntax" => [
<<<YAML
map: {
key: "value",
a: "b"
}
param: "some"
YAML,
$expected
];
yield "inline syntax" => [
<<<YAML
map: {key: "value", a: "b"}
param: "some"
YAML,
$expected
];
yield "mixed syntax" => [
<<<YAML
map: {key: "value",
a: "b"}
param: "some"
YAML,
$expected
];
}
}

class B
Expand Down