private function Parser::parseFoldedScalar

Parses a folded scalar.

Parameters

string $separator The separator that was used to begin this folded scalar (| or >):

string $indicator The indicator that was used to begin this folded scalar (+ or -):

integer $indentation The indentation that was used to begin this folded scalar:

Return value

string The text value

File

drupal/core/vendor/symfony/yaml/Symfony/Component/Yaml/Parser.php, line 410

Class

Parser

Parser parses YAML strings to convert them to PHP arrays.

Namespace

Code

private function parseFoldedScalar($separator, $indicator = '', $indentation = 0) {
  $separator = '|' == $separator ? "\n" : ' ';
  $text = '';
  $notEOF = $this
    ->moveToNextLine();
  while ($notEOF && $this
    ->isCurrentLineBlank()) {
    $text .= "\n";
    $notEOF = $this
      ->moveToNextLine();
  }
  if (!$notEOF) {
    return '';
  }
  if (!preg_match('#^(?P<indent>' . ($indentation ? str_repeat(' ', $indentation) : ' +') . ')(?P<text>.*)$#u', $this->currentLine, $matches)) {
    $this
      ->moveToPreviousLine();
    return '';
  }
  $textIndent = $matches['indent'];
  $previousIndent = 0;
  $text .= $matches['text'] . $separator;
  while ($this->currentLineNb + 1 < count($this->lines)) {
    $this
      ->moveToNextLine();
    if (preg_match('#^(?P<indent> {' . strlen($textIndent) . ',})(?P<text>.+)$#u', $this->currentLine, $matches)) {
      if (' ' == $separator && $previousIndent != $matches['indent']) {
        $text = substr($text, 0, -1) . "\n";
      }
      $previousIndent = $matches['indent'];
      $text .= str_repeat(' ', $diff = strlen($matches['indent']) - strlen($textIndent)) . $matches['text'] . ($diff ? "\n" : $separator);
    }
    elseif (preg_match('#^(?P<text> *)$#', $this->currentLine, $matches)) {
      $text .= preg_replace('#^ {1,' . strlen($textIndent) . '}#', '', $matches['text']) . "\n";
    }
    else {
      $this
        ->moveToPreviousLine();
      break;
    }
  }
  if (' ' == $separator) {

    // replace last separator by a newline
    $text = preg_replace('/ (\\n*)$/', "\n\$1", $text);
  }
  switch ($indicator) {
    case '':
      $text = preg_replace('#\\n+$#s', "\n", $text);
      break;
    case '+':
      break;
    case '-':
      $text = preg_replace('#\\n+$#s', '', $text);
      break;
  }
  return $text;
}