protected function CsvParser::parseLine in Feeds 8.3

Parses a single CSV line.

Parameters

string $line: A line from a CSV file.

bool $in_quotes: Do not use. For recursion only.

string $field: Do not use. For recursion only.

array $fields: Do not use. For recursion only.

Return value

array The list of cells in the CSV row.

3 calls to CsvParser::parseLine()

CsvParser::getHeader in src/Component/CsvParser.php

Returns the header row.

CsvParser::next in src/Component/CsvParser.php

Implements \Iterator::next().

CsvParser::rewind in src/Component/CsvParser.php

Implements \Iterator::rewind().

File

src/Component/CsvParser.php, line 287

Class

CsvParser

Parses an RFC 4180 style CSV file.

Namespace

Drupal\feeds\Component

Code

protected function parseLine($line, $in_quotes = FALSE, $field = '', array $fields = []) {
  $line_length = strlen($line);

  // Traverse the line byte-by-byte.
  for ($index = 0; $index < $line_length; ++$index) {
    $byte = $line[$index];
    $next_byte = isset($line[$index + 1]) ? $line[$index + 1] : '';

    // Beginning a quoted field.
    if ($byte === '"' && $field === '' && !$in_quotes) {
      $in_quotes = TRUE;
    }
    elseif ($byte === '"' && $next_byte !== '"' && $in_quotes) {
      $in_quotes = FALSE;
    }
    elseif ($byte === '"' && $next_byte === '"' && $in_quotes) {
      $field .= '"';

      // Skip the next quote.
      ++$index;
    }
    elseif (!$in_quotes && $byte === $this->delimiter) {
      $fields[] = $field;
      $field = '';
    }
    elseif (!$in_quotes && $next_byte === '') {
      $fields[] = $this
        ->trimNewline($byte, $field);
      $field = '';
    }
    else {
      $field .= $byte;
    }
  }

  // If we're still in quotes after the line is read, continue reading on the
  // next line. Check that we're not at the end of a malformed file.
  if ($in_quotes && ($line = $this
    ->readLine())) {
    $fields = $this
      ->parseLine($line, $in_quotes, $field, $fields);
  }

  // If we're not in quoted after the line is read but the field contains
  // data, we are processing a line that did not end.
  if (!$in_quotes && $field) {
    $fields[] = $field;
  }
  return $fields;
}