20 changed files with 1040 additions and 275 deletions
@ -0,0 +1,61 @@ |
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<?php |
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/** @license MIT |
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* Copyright 2017 J. King, Dustin Wilson et al. |
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* See LICENSE and AUTHORS files for details */ |
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|
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declare(strict_types=1); |
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namespace JKingWeb\Arsse\Context; |
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|
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class Context extends ExclusionContext { |
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/** @var ExclusionContext */ |
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public $not; |
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public $reverse = false; |
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public $limit = 0; |
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public $offset = 0; |
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public $unread; |
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public $starred; |
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public $labelled; |
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public $annotated; |
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|
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public function __construct() { |
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$this->not = new ExclusionContext($this); |
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} |
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|
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public function __clone() { |
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// clone the exclusion context as well |
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$this->not = clone $this->not; |
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} |
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|
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/** @codeCoverageIgnore */ |
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public function __destruct() { |
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unset($this->not); |
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} |
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|
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public function reverse(bool $spec = null) { |
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return $this->act(__FUNCTION__, func_num_args(), $spec); |
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} |
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|
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public function limit(int $spec = null) { |
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return $this->act(__FUNCTION__, func_num_args(), $spec); |
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} |
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|
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public function offset(int $spec = null) { |
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return $this->act(__FUNCTION__, func_num_args(), $spec); |
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} |
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|
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public function unread(bool $spec = null) { |
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return $this->act(__FUNCTION__, func_num_args(), $spec); |
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} |
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|
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public function starred(bool $spec = null) { |
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return $this->act(__FUNCTION__, func_num_args(), $spec); |
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} |
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|
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public function labelled(bool $spec = null) { |
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return $this->act(__FUNCTION__, func_num_args(), $spec); |
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} |
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|
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public function annotated(bool $spec = null) { |
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return $this->act(__FUNCTION__, func_num_args(), $spec); |
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} |
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} |
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@ -0,0 +1,361 @@ |
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<?php |
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/** @license MIT |
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* Copyright 2017 J. King, Dustin Wilson et al. |
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* See LICENSE and AUTHORS files for details */ |
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|
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declare(strict_types=1); |
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namespace JKingWeb\Arsse\REST\TinyTinyRSS; |
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|
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use JKingWeb\Arsse\Context\Context; |
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use JKingWeb\Arsse\Misc\Date; |
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|
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class Search { |
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const STATE_BEFORE_TOKEN = 0; |
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const STATE_BEFORE_TOKEN_QUOTED = 1; |
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const STATE_IN_DATE = 2; |
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const STATE_IN_DATE_QUOTED = 3; |
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const STATE_IN_TOKEN_OR_TAG = 4; |
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const STATE_IN_TOKEN_OR_TAG_QUOTED = 5; |
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const STATE_IN_TOKEN = 6; |
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const STATE_IN_TOKEN_QUOTED = 7; |
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|
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const FIELDS_BOOLEAN = [ |
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"unread" => "unread", |
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"star" => "starred", |
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"note" => "annotated", |
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"pub" => "published", // TODO: not implemented |
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]; |
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const FIELDS_TEXT = [ |
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"title" => "titleTerms", |
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"author" => "authorTerms", |
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"note" => "annotationTerms", |
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"" => "searchTerms", |
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]; |
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|
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public static function parse(string $search, Context $context = null) { |
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// normalize the input |
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$search = strtolower(trim(preg_replace("<\s+>", " ", $search))); |
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// set initial state |
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$tokens = []; |
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$pos = -1; |
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$stop = strlen($search); |
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$state = self::STATE_BEFORE_TOKEN; |
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$buffer = ""; |
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$tag = ""; |
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$flag_negative = false; |
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$context = $context ?? new Context; |
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// process |
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try { |
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while (++$pos <= $stop) { |
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$char = @$search[$pos]; |
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switch ($state) { |
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case self::STATE_BEFORE_TOKEN: |
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switch ($char) { |
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case "": |
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continue 3; |
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case " ": |
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continue 3; |
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case '"': |
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if ($flag_negative) { |
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$buffer .= $char; |
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$state = self::STATE_IN_TOKEN_OR_TAG; |
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} else { |
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$state = self::STATE_BEFORE_TOKEN_QUOTED; |
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} |
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continue 3; |
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case "-": |
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if (!$flag_negative) { |
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$flag_negative = true; |
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} else { |
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$buffer .= $char; |
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$state = self::STATE_IN_TOKEN_OR_TAG; |
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} |
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continue 3; |
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case "@": |
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$state = self::STATE_IN_DATE; |
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continue 3; |
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case ":": |
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$state = self::STATE_IN_TOKEN; |
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continue 3; |
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default: |
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$buffer .= $char; |
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$state = self::STATE_IN_TOKEN_OR_TAG; |
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continue 3; |
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} |
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case self::STATE_BEFORE_TOKEN_QUOTED: |
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switch ($char) { |
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case "": |
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continue 3; |
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case '"': |
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if (($pos + 1 == $stop) || $search[$pos + 1] === " ") { |
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$context = self::processToken($context, $buffer, $tag, $flag_negative, false); |
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$state = self::STATE_BEFORE_TOKEN; |
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$flag_negative = false; |
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$buffer = $tag = ""; |
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} elseif ($search[$pos + 1] === '"') { |
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$buffer .= '"'; |
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$pos++; |
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$state = self::STATE_IN_TOKEN_OR_TAG_QUOTED; |
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} else { |
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$state = self::STATE_IN_TOKEN_OR_TAG; |
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} |
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continue 3; |
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case "\\": |
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if ($pos + 1 == $stop) { |
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$buffer .= $char; |
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} elseif ($search[$pos + 1] === '"') { |
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$buffer .= '"'; |
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$pos++; |
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} else { |
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$buffer .= $char; |
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} |
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$state = self::STATE_IN_TOKEN_OR_TAG_QUOTED; |
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continue 3; |
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case "-": |
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if (!$flag_negative) { |
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$flag_negative = true; |
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} else { |
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$buffer .= $char; |
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$state = self::STATE_IN_TOKEN_OR_TAG_QUOTED; |
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} |
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continue 3; |
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case "@": |
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$state = self::STATE_IN_DATE_QUOTED; |
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continue 3; |
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case ":": |
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$state = self::STATE_IN_TOKEN_QUOTED; |
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continue 3; |
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default: |
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$buffer .= $char; |
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$state = self::STATE_IN_TOKEN_OR_TAG_QUOTED; |
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continue 3; |
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} |
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case self::STATE_IN_DATE: |
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while ($pos < $stop && $search[$pos] !== " ") { |
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$buffer .= $search[$pos++]; |
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} |
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$context = self::processToken($context, $buffer, $tag, $flag_negative, true); |
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$state = self::STATE_BEFORE_TOKEN; |
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$flag_negative = false; |
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$buffer = $tag = ""; |
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continue 2; |
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case self::STATE_IN_DATE_QUOTED: |
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switch ($char) { |
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case "": |
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case '"': |
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if (($pos + 1 >= $stop) || $search[$pos + 1] === " ") { |
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$context = self::processToken($context, $buffer, $tag, $flag_negative, true); |
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$state = self::STATE_BEFORE_TOKEN; |
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$flag_negative = false; |
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$buffer = $tag = ""; |
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} elseif ($search[$pos + 1] === '"') { |
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$buffer .= '"'; |
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$pos++; |
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} else { |
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$state = self::STATE_IN_DATE; |
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} |
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continue 3; |
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case "\\": |
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if ($pos + 1 == $stop) { |
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$buffer .= $char; |
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} elseif ($search[$pos + 1] === '"') { |
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$buffer .= '"'; |
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$pos++; |
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} else { |
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$buffer .= $char; |
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} |
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continue 3; |
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default: |
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$buffer .= $char; |
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continue 3; |
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} |
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case self::STATE_IN_TOKEN: |
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while ($pos < $stop && $search[$pos] !== " ") { |
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$buffer .= $search[$pos++]; |
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} |
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if (!strlen($tag)) { |
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$buffer = ":".$buffer; |
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} |
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$context = self::processToken($context, $buffer, $tag, $flag_negative, false); |
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$state = self::STATE_BEFORE_TOKEN; |
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$flag_negative = false; |
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$buffer = $tag = ""; |
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continue 2; |
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case self::STATE_IN_TOKEN_QUOTED: |
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switch ($char) { |
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case "": |
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case '"': |
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if (($pos + 1 >= $stop) || $search[$pos + 1] === " ") { |
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if (!strlen($tag)) { |
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$buffer = ":".$buffer; |
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} |
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$context = self::processToken($context, $buffer, $tag, $flag_negative, false); |
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$state = self::STATE_BEFORE_TOKEN; |
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$flag_negative = false; |
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$buffer = $tag = ""; |
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} elseif ($search[$pos + 1] === '"') { |
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$buffer .= '"'; |
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$pos++; |
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} else { |
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$state = self::STATE_IN_TOKEN; |
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} |
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continue 3; |
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case "\\": |
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if ($pos + 1 == $stop) { |
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$buffer .= $char; |
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} elseif ($search[$pos + 1] === '"') { |
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$buffer .= '"'; |
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$pos++; |
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} else { |
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$buffer .= $char; |
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} |
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continue 3; |
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default: |
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$buffer .= $char; |
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continue 3; |
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} |
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case self::STATE_IN_TOKEN_OR_TAG: |
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switch ($char) { |
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case "": |
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case " ": |
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$context = self::processToken($context, $buffer, $tag, $flag_negative, false); |
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$state = self::STATE_BEFORE_TOKEN; |
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$flag_negative = false; |
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$buffer = $tag = ""; |
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continue 3; |
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case ":"; |
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$tag = $buffer; |
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$buffer = ""; |
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$state = self::STATE_IN_TOKEN; |
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continue 3; |
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default: |
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$buffer .= $char; |
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continue 3; |
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} |
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case self::STATE_IN_TOKEN_OR_TAG_QUOTED: |
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switch ($char) { |
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case "": |
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case '"': |
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if (($pos + 1 >= $stop) || $search[$pos + 1] === " ") { |
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$context = self::processToken($context, $buffer, $tag, $flag_negative, false); |
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$state = self::STATE_BEFORE_TOKEN; |
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$flag_negative = false; |
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$buffer = $tag = ""; |
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} elseif ($search[$pos + 1] === '"') { |
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$buffer .= '"'; |
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$pos++; |
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} else { |
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$state = self::STATE_IN_TOKEN_OR_TAG; |
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} |
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continue 3; |
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case "\\": |
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if ($pos + 1 == $stop) { |
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$buffer .= $char; |
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} elseif ($search[$pos + 1] === '"') { |
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$buffer .= '"'; |
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$pos++; |
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} else { |
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$buffer .= $char; |
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} |
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continue 3; |
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case ":": |
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$tag = $buffer; |
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$buffer = ""; |
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$state = self::STATE_IN_TOKEN_QUOTED; |
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continue 3; |
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default: |
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$buffer .= $char; |
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continue 3; |
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} |
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default: |
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throw new \Exception; // @codeCoverageIgnore |
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} |
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} |
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} catch (Exception $e) { |
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return null; |
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} |
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return $context; |
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} |
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|
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protected static function processToken(Context $c, string $value, string $tag, bool $neg, bool $date): Context { |
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if (!strlen($value) && !strlen($tag)) { |
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return $c; |
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} elseif (!strlen($value)) { |
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// if a tag has an empty value, the tag is treated as a search term instead |
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$value = "$tag:"; |
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$tag = ""; |
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} |
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if ($date) { |
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return self::setDate($value, $c, $neg); |
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} elseif (isset(self::FIELDS_BOOLEAN[$tag])) { |
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return self::setBoolean($tag, $value, $c, $neg); |
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} else { |
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return self::addTerm($tag, $value, $c, $neg); |
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} |
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} |
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|
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protected static function addTerm(string $tag, string $value, Context $c, bool $neg): Context { |
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$c = $neg ? $c->not : $c; |
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$type = self::FIELDS_TEXT[$tag] ?? ""; |
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if (!$type) { |
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$value = "$tag:$value"; |
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$type = self::FIELDS_TEXT[""]; |
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} |
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return $c->$type(array_merge($c->$type ?? [], [$value])); |
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} |
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|
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protected static function setDate(string $value, Context $c, bool $neg): Context { |
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$spec = Date::normalize($value); |
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// TTRSS treats invalid dates as the start of the Unix epoch; we ignore them instead |
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if (!$spec) { |
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return $c; |
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} |
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$day = $spec->format("Y-m-d"); |
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$start = $day."T00:00:00+00:00"; |
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$end = $day."T23:59:59+00:00"; |
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// if a date is already set, the same date is a no-op; anything else is a contradiction |
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$cc = $neg ? $c->not : $c; |
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if ($cc->modifiedSince() || $cc->notModifiedSince()) { |
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if (!$cc->modifiedSince() || !$cc->notModifiedSince() || $cc->modifiedSince->format("c") !== $start || $cc->notModifiedSince->format("c") !== $end) { |
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// FIXME: multiple negative dates should be allowed, but the design of the Context class does not support this |
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throw new Exception; |
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} else { |
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return $c; |
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} |
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} |
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$cc->modifiedSince($start); |
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$cc->notModifiedSince($end); |
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return $c; |
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} |
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|
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protected static function setBoolean(string $tag, string $value, Context $c, bool $neg): Context { |
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$set = ["true" => true, "false" => false][$value] ?? null; |
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if (is_null($set)) { |
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return self::addTerm($tag, $value, $c, $neg); |
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} else { |
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// apply negation |
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$set = $neg ? !$set : $set; |
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if ($tag === "pub") { |
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// TODO: this needs to be implemented correctly if the Published feed is implemented |
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// currently specifying true will always yield an empty result (nothing is ever published), and specifying false is a no-op (matches everything) |
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if ($set) { |
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throw new Exception; |
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} else { |
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return $c; |
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} |
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} else { |
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$field = (self::FIELDS_BOOLEAN[$tag] ?? ""); |
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if (!$c->$field()) { |
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// field has not yet been set; set it |
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return $c->$field($set); |
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} elseif ($c->$field == $set) { |
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// field is already set to same value; do nothing |
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return $c; |
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} else { |
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// contradiction: query would return no results |
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throw new Exception; |
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} |
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} |
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} |
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} |
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} |
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@ -0,0 +1,126 @@ |
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<?php |
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/** @license MIT |
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* Copyright 2017 J. King, Dustin Wilson et al. |
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* See LICENSE and AUTHORS files for details */ |
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|
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declare(strict_types=1); |
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namespace JKingWeb\Arsse\TestCase\REST\TinyTinyRSS; |
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|
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use JKingWeb\Arsse\Context\Context; |
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use JKingWeb\Arsse\REST\TinyTinyRSS\Search; |
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|
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/** @covers \JKingWeb\Arsse\REST\TinyTinyRSS\Search */ |
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class TestSearch extends \JKingWeb\Arsse\Test\AbstractTest { |
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public function provideSearchStrings() { |
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return [ |
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'Blank string' => ["", new Context], |
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'Whitespace only' => [" \n \t", new Context], |
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'Simple bare token' => ['OOK', (new Context)->searchTerms(["ook"])], |
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'Simple negative bare token' => ['-OOK', (new Context)->not->searchTerms(["ook"])], |
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'Simple quoted token' => ['"OOK eek"', (new Context)->searchTerms(["ook eek"])], |
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'Simple negative quoted token' => ['"-OOK eek"', (new Context)->not->searchTerms(["ook eek"])], |
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'Simple bare tokens' => ['OOK eek', (new Context)->searchTerms(["ook", "eek"])], |
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'Simple mixed bare tokens' => ['-OOK eek', (new Context)->not->searchTerms(["ook"])->searchTerms(["eek"])], |
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'Unclosed quoted token' => ['"OOK eek', (new Context)->searchTerms(["ook eek"])], |
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'Unclosed quoted token 2' => ['"OOK eek" "', (new Context)->searchTerms(["ook eek"])], |
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'Broken quoted token 1' => ['"-OOK"eek"', (new Context)->not->searchTerms(["ookeek\""])], |
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'Broken quoted token 2' => ['""eek"', (new Context)->searchTerms(["eek\""])], |
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'Broken quoted token 3' => ['"-"eek"', (new Context)->not->searchTerms(["eek\""])], |
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'Empty quoted token' => ['""', new Context], |
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'Simple quoted tokens' => ['"OOK eek" "eek ack"', (new Context)->searchTerms(["ook eek", "eek ack"])], |
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'Bare blank tag' => [':ook', (new Context)->searchTerms([":ook"])], |
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'Quoted blank tag' => ['":ook"', (new Context)->searchTerms([":ook"])], |
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'Bare negative blank tag' => ['-:ook', (new Context)->not->searchTerms([":ook"])], |
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'Quoted negative blank tag' => ['"-:ook"', (new Context)->not->searchTerms([":ook"])], |
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'Bare valueless blank tag' => [':', (new Context)->searchTerms([":"])], |
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'Quoted valueless blank tag' => ['":"', (new Context)->searchTerms([":"])], |
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'Bare negative valueless blank tag' => ['-:', (new Context)->not->searchTerms([":"])], |
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'Quoted negative valueless blank tag' => ['"-:"', (new Context)->not->searchTerms([":"])], |
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'Double negative' => ['--eek', (new Context)->not->searchTerms(["-eek"])], |
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'Double negative 2' => ['--@eek', (new Context)->not->searchTerms(["-@eek"])], |
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'Double negative 3' => ['"--@eek"', (new Context)->not->searchTerms(["-@eek"])], |
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'Double negative 4' => ['"--eek"', (new Context)->not->searchTerms(["-eek"])], |
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'Negative before quote' => ['-"ook"', (new Context)->not->searchTerms(["\"ook\""])], |
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'Bare unread tag true' => ['UNREAD:true', (new Context)->unread(true)], |
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'Bare unread tag false' => ['UNREAD:false', (new Context)->unread(false)], |
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'Bare negative unread tag true' => ['-unread:true', (new Context)->unread(false)], |
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'Bare negative unread tag false' => ['-unread:false', (new Context)->unread(true)], |
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'Quoted unread tag true' => ['"UNREAD:true"', (new Context)->unread(true)], |
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'Quoted unread tag false' => ['"UNREAD:false"', (new Context)->unread(false)], |
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'Quoted negative unread tag true' => ['"-unread:true"', (new Context)->unread(false)], |
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'Quoted negative unread tag false' => ['"-unread:false"', (new Context)->unread(true)], |
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'Bare star tag true' => ['STAR:true', (new Context)->starred(true)], |
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'Bare star tag false' => ['STAR:false', (new Context)->starred(false)], |
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'Bare negative star tag true' => ['-star:true', (new Context)->starred(false)], |
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'Bare negative star tag false' => ['-star:false', (new Context)->starred(true)], |
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'Quoted star tag true' => ['"STAR:true"', (new Context)->starred(true)], |
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'Quoted star tag false' => ['"STAR:false"', (new Context)->starred(false)], |
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'Quoted negative star tag true' => ['"-star:true"', (new Context)->starred(false)], |
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'Quoted negative star tag false' => ['"-star:false"', (new Context)->starred(true)], |
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'Bare note tag true' => ['NOTE:true', (new Context)->annotated(true)], |
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'Bare note tag false' => ['NOTE:false', (new Context)->annotated(false)], |
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'Bare negative note tag true' => ['-note:true', (new Context)->annotated(false)], |
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'Bare negative note tag false' => ['-note:false', (new Context)->annotated(true)], |
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'Quoted note tag true' => ['"NOTE:true"', (new Context)->annotated(true)], |
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'Quoted note tag false' => ['"NOTE:false"', (new Context)->annotated(false)], |
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'Quoted negative note tag true' => ['"-note:true"', (new Context)->annotated(false)], |
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'Quoted negative note tag false' => ['"-note:false"', (new Context)->annotated(true)], |
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'Bare pub tag true' => ['PUB:true', null], |
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'Bare pub tag false' => ['PUB:false', new Context], |
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'Bare negative pub tag true' => ['-pub:true', new Context], |
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'Bare negative pub tag false' => ['-pub:false', null], |
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'Quoted pub tag true' => ['"PUB:true"', null], |
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'Quoted pub tag false' => ['"PUB:false"', new Context], |
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'Quoted negative pub tag true' => ['"-pub:true"', new Context], |
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'Quoted negative pub tag false' => ['"-pub:false"', null], |
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'Non-boolean unread tag' => ['unread:maybe', (new Context)->searchTerms(["unread:maybe"])], |
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'Non-boolean star tag' => ['star:maybe', (new Context)->searchTerms(["star:maybe"])], |
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'Non-boolean pub tag' => ['pub:maybe', (new Context)->searchTerms(["pub:maybe"])], |
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'Non-boolean note tag' => ['note:maybe', (new Context)->annotationTerms(["maybe"])], |
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'Valueless unread tag' => ['unread:', (new Context)->searchTerms(["unread:"])], |
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'Valueless star tag' => ['star:', (new Context)->searchTerms(["star:"])], |
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'Valueless pub tag' => ['pub:', (new Context)->searchTerms(["pub:"])], |
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'Valueless note tag' => ['note:', (new Context)->searchTerms(["note:"])], |
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'Valueless title tag' => ['title:', (new Context)->searchTerms(["title:"])], |
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'Valueless author tag' => ['author:', (new Context)->searchTerms(["author:"])], |
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'Escaped quote 1' => ['"""I say, Jeeves!"""', (new Context)->searchTerms(["\"i say, jeeves!\""])], |
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'Escaped quote 2' => ['"\\"I say, Jeeves!\\""', (new Context)->searchTerms(["\"i say, jeeves!\""])], |
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'Escaped quote 3' => ['\\"I say, Jeeves!\\"', (new Context)->searchTerms(["\\\"i", "say,", "jeeves!\\\""])], |
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'Escaped quote 4' => ['"\\"\\I say, Jeeves!\\""', (new Context)->searchTerms(["\"\\i say, jeeves!\""])], |
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'Escaped quote 5' => ['"\\I say, Jeeves!"', (new Context)->searchTerms(["\\i say, jeeves!"])], |
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'Escaped quote 6' => ['"\\"I say, Jeeves!\\', (new Context)->searchTerms(["\"i say, jeeves!\\"])], |
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'Escaped quote 7' => ['"\\', (new Context)->searchTerms(["\\"])], |
|||
'Quoted author tag 1' => ['"author:Neal Stephenson"', (new Context)->authorTerms(["neal stephenson"])], |
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'Quoted author tag 2' => ['"author:Jo ""Cap\'n Tripps"" Ashburn"', (new Context)->authorTerms(["jo \"cap'n tripps\" ashburn"])], |
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'Quoted author tag 3' => ['"author:Jo \\"Cap\'n Tripps\\" Ashburn"', (new Context)->authorTerms(["jo \"cap'n tripps\" ashburn"])], |
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'Quoted author tag 4' => ['"author:Jo ""Cap\'n Tripps"Ashburn"', (new Context)->authorTerms(["jo \"cap'n trippsashburn\""])], |
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'Quoted author tag 5' => ['"author:Jo ""Cap\'n Tripps\ Ashburn"', (new Context)->authorTerms(["jo \"cap'n tripps\\ ashburn"])], |
|||
'Quoted author tag 6' => ['"author:Neal Stephenson\\', (new Context)->authorTerms(["neal stephenson\\"])], |
|||
'Quoted title tag' => ['"title:Generic title"', (new Context)->titleTerms(["generic title"])], |
|||
'Contradictory booleans' => ['unread:true -unread:true', null], |
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'Doubled boolean' => ['unread:true unread:true', (new Context)->unread(true)], |
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'Bare blank date' => ['@', new Context], |
|||
'Quoted blank date' => ['"@"', new Context], |
|||
'Bare ISO date' => ['@2019-03-01', (new Context)->modifiedSince("2019-03-01T00:00:00Z")->notModifiedSince("2019-03-01T23:59:59Z")], |
|||
'Quoted ISO date' => ['"@March 1st, 2019"', (new Context)->modifiedSince("2019-03-01T00:00:00Z")->notModifiedSince("2019-03-01T23:59:59Z")], |
|||
'Bare negative ISO date' => ['-@2019-03-01', (new Context)->not->modifiedSince("2019-03-01T00:00:00Z")->not->notModifiedSince("2019-03-01T23:59:59Z")], |
|||
'Quoted negative English date' => ['"-@March 1st, 2019"', (new Context)->not->modifiedSince("2019-03-01T00:00:00Z")->not->notModifiedSince("2019-03-01T23:59:59Z")], |
|||
'Invalid date' => ['@Bugaboo', new Context], |
|||
'Escaped quoted date 1' => ['"@""Yesterday" and today', (new Context)->searchTerms(["and", "today"])], |
|||
'Escaped quoted date 2' => ['"@\\"Yesterday" and today', (new Context)->searchTerms(["and", "today"])], |
|||
'Escaped quoted date 3' => ['"@Yesterday\\', new Context], |
|||
'Escaped quoted date 4' => ['"@Yesterday\\and today', new Context], |
|||
'Escaped quoted date 5' => ['"@Yesterday"and today', (new Context)->searchTerms(["today"])], |
|||
'Contradictory dates' => ['@Yesterday @Today', null], |
|||
'Doubled date' => ['"@March 1st, 2019" @2019-03-01', (new Context)->modifiedSince("2019-03-01T00:00:00Z")->notModifiedSince("2019-03-01T23:59:59Z")], |
|||
'Doubled negative date' => ['"-@March 1st, 2019" -@2019-03-01', (new Context)->not->modifiedSince("2019-03-01T00:00:00Z")->not->notModifiedSince("2019-03-01T23:59:59Z")], |
|||
]; |
|||
} |
|||
|
|||
/** @dataProvider provideSearchStrings */ |
|||
public function testApplySearchToContext(string $search, $exp) { |
|||
$act = Search::parse($search); |
|||
//var_export($act); |
|||
$this->assertEquals($exp, $act); |
|||
} |
|||
} |
|||
Loading…
Reference in new issue