function node_export_dsv_dsv_to_array in Node export 7.3

Same name and namespace in other branches

1. 6.3 modules/node_export_dsv/node_export_dsv.module \node_export_dsv_dsv_to_array()

Decode DSV.

1 call to node_export_dsv_dsv_to_array()

node_export_dsv_decode in formats/dsv.inc

Interpret a DSV string.

File

formats/dsv.inc, line 264

The Node export DSV format handler.

Code

function node_export_dsv_dsv_to_array($string, $delimiter, $enclosure, $separator) {
  $lines = array();
  $out_item = array();
  $count = strlen($string);
  $escape = FALSE;
  $double_escape = FALSE;
  $position = 0;
  $i = 0;
  $separators = str_split($separator);
  while ($i < $count) {
    $c = $string[$i];

    // Determine whether this is an EOL.
    $is_eol = TRUE;
    for ($j = 0; $j < count($separators); $j++) {
      if (!isset($string[$i + $j]) || $string[$i + $j] != $separators[$j]) {
        $is_eol = FALSE;
        break;
      }
    }
    if ($is_eol) {
      if ($escape) {
        $out_item[$position] .= $c;
      }
      else {
        $i += count($separators);
        $lines[] = $out_item;
        $out_item = array();
        $position = 0;
        continue;
      }
    }
    elseif ($c == $delimiter) {
      if ($escape) {
        $out_item[$position] .= $c;
      }
      else {
        if ($string[$i - 1] == $delimiter) {
          $out_item[$position] .= '';
        }
        $position++;
        $escape = FALSE;
        $double_escape = FALSE;
      }
    }
    elseif ($c == $enclosure) {
      if ($double_escape) {
        $out_item[$position] .= $enclosure;
        $double_escape = FALSE;
      }
      if ($escape) {
        $escape = FALSE;
        $double_escape = TRUE;
      }
      else {
        $escape = TRUE;
        $double_escape = FALSE;
      }
    }
    else {
      if ($double_escape) {
        $out_item[$position] .= $enclosure;
        $double_escape = FALSE;
      }
      $out_item[$position] .= $c;
    }
    $i++;
  }
  if (!empty($out_item)) {
    $lines[] = $out_item;
  }
  return $lines;
}