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<?php function parseSearchTerms($queryStr) { $searchTerms = [ 'canHave' => [], 'mustHave' => [], 'cannotHave' => [] ]; $keyword = ''; $quoted = false; $mod = null; $escaped = false; $spaced = true; for($i=0,$l=strlen($queryStr);$i<$l;$i++) { $char = $queryStr[$i]; if(ctype_space($char)) { $char = ' '; } switch($char) { case ' ': if($quoted || !$spaced) { $keyword .= $char; $spaced = true; } else if(!$quoted && !empty($keyword)) { if(is_null($mod)) { $searchTerms['canHave'][] = $keyword; } else { if($mod == '+') { $searchTerms['mustHave'][] = $keyword; } else if($mod == '-') { $searchTerms['cannotHave'][] = $keyword; } } $keyword = ''; } echo $keyword . PHP_EOL; var_dump($quoted); var_dump($spaced); var_dump($mod); echo PHP_EOL; break; case '"': if(!$escaped) { if($quoted) { if(is_null($mod)) { $searchTerms['canHave'][] = $keyword; } else { if($mod == '+') { $searchTerms['mustHave'][] = $keyword; } else if($mod == '-') { $searchTerms['cannotHave'][] = $keyword; } } $keyword = ''; $quoted = false; } } break; case '+': case '-': if($spaced) { $mod = $char; $spaced = false; } else { $mod = null; $keyword .= $char; $spaced = false; } break; default: $keyword .= $char; $spaced = false; break; } } if(!is_null($mod)) { if($mod == '+') { $searchTerms['mustHave'][] = $keyword; } else if($mod == '-') { $searchTerms['cannotHave'][] = $keyword; } } return $searchTerms; } var_dump(parseSearchTerms('+here are -no some "search terms"'));
Output for git.master, git.master_jit, rfc.property-hooks
here bool(false) bool(true) string(1) "+" here are bool(false) bool(true) string(1) "+" here are no bool(false) bool(true) string(1) "-" here are no some bool(false) bool(true) string(1) "-" here are no some search bool(false) bool(true) string(1) "-" array(3) { ["canHave"]=> array(0) { } ["mustHave"]=> array(0) { } ["cannotHave"]=> array(1) { [0]=> string(29) "here are no some search terms" } }

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