function ARC_sparql_parser::parse_GraphPatternNotTriples in Taxonomy import/export via XML 5

Same name and namespace in other branches

1. 5.2 arc/ARC_sparql_parser.php \ARC_sparql_parser::parse_GraphPatternNotTriples()
2. 6.2 arc/ARC_sparql_parser.php \ARC_sparql_parser::parse_GraphPatternNotTriples()
3. 6 arc/ARC_sparql_parser.php \ARC_sparql_parser::parse_GraphPatternNotTriples()

1 call to ARC_sparql_parser::parse_GraphPatternNotTriples()

ARC_sparql_parser::parse_GraphPattern in arc/ARC_sparql_parser.php

File

arc/ARC_sparql_parser.php, line 757

Class

ARC_sparql_parser

Code

function parse_GraphPatternNotTriples($val = "") {

  /* optional */
  if (preg_match("/^(OPTIONAL)(\\s*)(\\{.*)\$/is", $val, $matches)) {
    $bracket_data = $this
      ->extract_bracket_data($matches[3]);
    return array(
      "type" => "optional",
      "pattern" => $this
        ->parse_GroupGraphPattern("{" . trim($bracket_data) . "}"),
      "unparsed_val" => trim(substr($val, strlen($matches[1] . $matches[2] . $bracket_data) + 2)),
    );
  }

  /* group or union */
  if (($sub_result = $this
    ->parse_GroupGraphPattern($val)) && $sub_result["type"]) {
    $val = $sub_result["unparsed_val"];
    $result = $sub_result;

    /* union */
    if (preg_match("/^UNION/i", $val)) {
      unset($sub_result["unparsed_val"]);
      $result = array(
        "type" => "union",
        "entries" => array(
          $sub_result,
        ),
      );
      while (preg_match("/^UNION\\s*(.*)\$/s", $val, $matches)) {
        $val = trim($matches[1]);
        if (($sub_result = $this
          ->parse_GroupGraphPattern($val)) && $sub_result["type"]) {
          $val = $sub_result["unparsed_val"];
          unset($sub_result["unparsed_val"]);
          $result["entries"][] = $sub_result;
        }
      }
      $result["unparsed_val"] = $val;
    }
    return $result;
  }

  /* graph */
  if ($sub_result = $this
    ->parse_GraphGraphPattern($val)) {
    return $sub_result;
  }

  /* constraint */
  if ($sub_result = $this
    ->parse_Constraint($val)) {
    return $sub_result;
  }

  /* else */
  return false;
}