PHP StringUtils::hasPcreUnicodeSupport方法代码示例

 /**
  * Defined by Zend\Filter\Filter
  *
  * @param  string $value
  * @return string
  */
 public function filter($value)
 {
     // a unicode safe way of converting characters to \x00\x00 notation
     $pregQuotedSeparator = preg_quote($this->separator, '#');
     if (StringUtils::hasPcreUnicodeSupport()) {
         $patterns = array('#(' . $pregQuotedSeparator . ')(\\p{L}{1})#u', '#(^\\p{Ll}{1})#u');
         if (!extension_loaded('mbstring')) {
             $replacements = array(function ($matches) {
                 return strtoupper($matches[2]);
             }, function ($matches) {
                 return strtoupper($matches[1]);
             });
         } else {
             $replacements = array(function ($matches) {
                 return mb_strtoupper($matches[2], 'UTF-8');
             }, function ($matches) {
                 return mb_strtoupper($matches[1], 'UTF-8');
             });
         }
     } else {
         $patterns = array('#(' . $pregQuotedSeparator . ')([A-Za-z]{1})#', '#(^[A-Za-z]{1})#');
         $replacements = array(function ($matches) {
             return strtoupper($matches[2]);
         }, function ($matches) {
             return strtoupper($matches[1]);
         });
     }
     $filtered = $value;
     foreach ($patterns as $index => $pattern) {
         $filtered = preg_replace_callback($pattern, $replacements[$index], $filtered);
     }
     return $filtered;
 }

 public function setUp()
 {
     if (!StringUtils::hasPcreUnicodeSupport()) {
         return $this->markTestSkipped('PCRE is not compiled with Unicode support');
     }
     $this->reflection = new ReflectionProperty('Zend\\Stdlib\\StringUtils', 'hasPcreUnicodeSupport');
     $this->reflection->setAccessible(true);
     $this->reflection->setValue(false);
 }

 /**
  * Defined by Zend\Filter\Filter
  *
  * @param  string $value
  * @return string
  */
 public function filter($value)
 {
     if (StringUtils::hasPcreUnicodeSupport()) {
         $pattern = array('#(?<=(?:\\p{Lu}))(\\p{Lu}\\p{Ll})#', '#(?<=(?:\\p{Ll}|\\p{Nd}))(\\p{Lu})#');
         $replacement = array($this->separator . '\\1', $this->separator . '\\1');
     } else {
         $pattern = array('#(?<=(?:[A-Z]))([A-Z]+)([A-Z][a-z])#', '#(?<=(?:[a-z0-9]))([A-Z])#');
         $replacement = array('\\1' . $this->separator . '\\2', $this->separator . '\\1');
     }
     return preg_replace($pattern, $replacement, $value);
 }

 /**
  * Defined by Zend\Filter\FilterInterface
  *
  * Returns the string $value, removing all but digit characters
  *
  * @param  string $value
  * @return string
  */
 public function filter($value)
 {
     if (!StringUtils::hasPcreUnicodeSupport()) {
         // POSIX named classes are not supported, use alternative 0-9 match
         $pattern = '/[^0-9]/';
     } elseif (extension_loaded('mbstring')) {
         // Filter for the value with mbstring
         $pattern = '/[^[:digit:]]/';
     } else {
         // Filter for the value without mbstring
         $pattern = '/[\\p{^N}]/';
     }
     return preg_replace($pattern, '', (string) $value);
 }

 /**
  * Defined by Zend\Filter\Filter
  *
  * @param  string|array $value
  * @return string|array
  */
 public function filter($value)
 {
     if (!is_scalar($value) && !is_array($value)) {
         return $value;
     }
     $value = parent::filter($value);
     $lowerCaseFirst = 'lcfirst';
     if (StringUtils::hasPcreUnicodeSupport() && extension_loaded('mbstring')) {
         $lowerCaseFirst = function ($value) {
             if (0 === mb_strlen($value)) {
                 return $value;
             }
             return mb_strtolower(mb_substr($value, 0, 1)) . mb_substr($value, 1);
         };
     }
     return is_array($value) ? array_map($lowerCaseFirst, $value) : call_user_func($lowerCaseFirst, $value);
 }

 /**
  * Defined by Zend\Filter\FilterInterface
  *
  * Returns the string $value, removing all but digit characters
  *
  * If the value provided is non-scalar, the value will remain unfiltered
  * and an E_USER_WARNING will be raised indicating it's unfilterable.
  *
  * @param  string $value
  * @return string|mixed
  */
 public function filter($value)
 {
     if (null === $value) {
         return null;
     }
     if (!is_scalar($value)) {
         trigger_error(sprintf('%s expects parameter to be scalar, "%s" given; cannot filter', __METHOD__, is_object($value) ? get_class($value) : gettype($value)), E_USER_WARNING);
         return $value;
     }
     if (!StringUtils::hasPcreUnicodeSupport()) {
         // POSIX named classes are not supported, use alternative 0-9 match
         $pattern = '/[^0-9]/';
     } elseif (extension_loaded('mbstring')) {
         // Filter for the value with mbstring
         $pattern = '/[^[:digit:]]/';
     } else {
         // Filter for the value without mbstring
         $pattern = '/[\\p{^N}]/';
     }
     return preg_replace($pattern, '', (string) $value);
 }

 protected function getKeywords($string)
 {
     $innerPattern = StringUtils::hasPcreUnicodeSupport() ? '[^\\p{L}]' : '[^a-z0-9ßäöü ]';
     $pattern = '~' . $innerPattern . '~isu';
     $stripPattern = '~^' . $innerPattern . '+|' . $innerPattern . '+$~isu';
     $parts = array();
     $textParts = explode(' ', $string);
     foreach ($textParts as $part) {
         $part = strtolower(trim($part));
         $part = preg_replace($stripPattern, '', $part);
         if ('' == $part) {
             continue;
         }
         $parts[] = $part;
         $tmpPart = preg_replace($pattern, ' ', $part);
         if ($part != $tmpPart) {
             $tmpParts = explode(' ', $tmpPart);
             $tmpParts = array_filter($tmpParts);
             $parts = array_merge($parts, $tmpParts);
         }
     }
     return $parts;
 }

 /**
  * Returns true if and only if $value is a number correctly expressed with the scientific notation
  *
  * Note that it can only validate string inputs.
  *
  * @param mixed $value
  * @return bool
  */
 public function isValid($value)
 {
     if (!is_scalar($value) || is_bool($value)) {
         $this->error(self::INVALID_INPUT);
         return false;
     }
     $formatter = new \NumberFormatter($this->getLocale(), \NumberFormatter::SCIENTIFIC);
     $flags = 'i';
     $expSymbol = 'E';
     if (StringUtils::hasPcreUnicodeSupport()) {
         $expSymbol = preg_quote($formatter->getSymbol(\NumberFormatter::EXPONENTIAL_SYMBOL));
         $flags .= 'u';
     }
     // Check that exponentation symbol is present
     $search = str_replace("‎", '', sprintf('/%s/%s', $expSymbol, $flags));
     $value = str_replace("‎", '', $value);
     if (!preg_match($search, $value)) {
         $this->error(self::NOT_SCIENTIFIC);
         return false;
     }
     // Check that the number expressed in scientific notation is a valid number
     $float = new IsFloat(['locale' => $this->getLocale()]);
     if (!$float->isValid($value)) {
         $this->error(self::NOT_NUMBER);
         return false;
     }
     return true;
 }

 /**
  * Get all the regex components
  *
  * @return array
  */
 public function getRegexComponents()
 {
     if ($this->regexComponents == null) {
         $this->regexComponents[self::REGEX_NUMBERS] = '0-9';
         $this->regexComponents[self::REGEX_FLAGS] = '';
         if (StringUtils::hasPcreUnicodeSupport()) {
             $this->regexComponents[self::REGEX_NUMBERS] = '\\p{N}';
             $this->regexComponents[self::REGEX_FLAGS] .= 'u';
         }
     }
     return $this->regexComponents;
 }

    public function testHasPcreUnicodeSupport()
    {
        ErrorHandler::start();
        $expected = defined('PREG_BAD_UTF8_OFFSET_ERROR') && preg_match('/\pL/u', 'a') == 1;
        ErrorHandler::stop();

        $this->assertSame($expected, StringUtils::hasPcreUnicodeSupport());
    }

 /**
  * @return bool
  * @deprecated Since 2.1.0
  */
 public static function hasPcreUnicodeSupport()
 {
     return StringUtils::hasPcreUnicodeSupport();
 }

 /**
  * Returns true if and only if $value is a floating-point value. Uses the formal definition of a float as described
  * in the PHP manual: {@link http://www.php.net/float}
  *
  * @param  string $value
  * @return bool
  * @throws Exception\InvalidArgumentException
  */
 public function isValid($value)
 {
     if (!is_scalar($value) || is_bool($value)) {
         $this->error(self::INVALID);
         return false;
     }
     $this->setValue($value);
     if (is_float($value) || is_int($value)) {
         return true;
     }
     // Need to check if this is scientific formatted string. If not, switch to decimal.
     $formatter = new NumberFormatter($this->getLocale(), NumberFormatter::SCIENTIFIC);
     if (intl_is_failure($formatter->getErrorCode())) {
         throw new Exception\InvalidArgumentException($formatter->getErrorMessage());
     }
     if (StringUtils::hasPcreUnicodeSupport()) {
         $exponentialSymbols = '[Ee' . $formatter->getSymbol(NumberFormatter::EXPONENTIAL_SYMBOL) . ']+';
         $search = '/' . $exponentialSymbols . '/u';
     } else {
         $exponentialSymbols = '[Ee]';
         $search = '/' . $exponentialSymbols . '/';
     }
     if (!preg_match($search, $value)) {
         $formatter = new NumberFormatter($this->getLocale(), NumberFormatter::DECIMAL);
     }
     /**
      * @desc There are seperator "look-alikes" for decimal and group seperators that are more commonly used than the
      *       official unicode chracter. We need to replace those with the real thing - or remove it.
      */
     $groupSeparator = $formatter->getSymbol(NumberFormatter::GROUPING_SEPARATOR_SYMBOL);
     $decSeparator = $formatter->getSymbol(NumberFormatter::DECIMAL_SEPARATOR_SYMBOL);
     //NO-BREAK SPACE and ARABIC THOUSANDS SEPARATOR
     if ($groupSeparator == " ") {
         $value = str_replace(' ', $groupSeparator, $value);
     } elseif ($groupSeparator == "٬") {
         //NumberFormatter doesn't have grouping at all for Arabic-Indic
         $value = str_replace(array('\'', $groupSeparator), '', $value);
     }
     //ARABIC DECIMAL SEPARATOR
     if ($decSeparator == "٫") {
         $value = str_replace(',', $decSeparator, $value);
     }
     $groupSeparatorPosition = $this->wrapper->strpos($value, $groupSeparator);
     $decSeparatorPosition = $this->wrapper->strpos($value, $decSeparator);
     //We have seperators, and they are flipped. i.e. 2.000,000 for en-US
     if ($groupSeparatorPosition && $decSeparatorPosition && $groupSeparatorPosition > $decSeparatorPosition) {
         return false;
     }
     //If we have Unicode support, we can use the real graphemes, otherwise, just the ASCII characters
     $decimal = '[' . preg_quote($decSeparator, '/') . ']';
     $prefix = '[+-]';
     $exp = $exponentialSymbols;
     $numberRange = '0-9';
     $useUnicode = '';
     $suffix = '';
     if (StringUtils::hasPcreUnicodeSupport()) {
         $prefix = '[' . preg_quote($formatter->getTextAttribute(NumberFormatter::POSITIVE_PREFIX) . $formatter->getTextAttribute(NumberFormatter::NEGATIVE_PREFIX) . $formatter->getSymbol(NumberFormatter::PLUS_SIGN_SYMBOL) . $formatter->getSymbol(NumberFormatter::MINUS_SIGN_SYMBOL), '/') . ']{0,3}';
         $suffix = $formatter->getTextAttribute(NumberFormatter::NEGATIVE_SUFFIX) ? '[' . preg_quote($formatter->getTextAttribute(NumberFormatter::POSITIVE_SUFFIX) . $formatter->getTextAttribute(NumberFormatter::NEGATIVE_SUFFIX) . $formatter->getSymbol(NumberFormatter::PLUS_SIGN_SYMBOL) . $formatter->getSymbol(NumberFormatter::MINUS_SIGN_SYMBOL), '/') . ']{0,3}' : '';
         $numberRange = '\\p{N}';
         $useUnicode = 'u';
     }
     /**
      * @desc Match against the formal definition of a float. The
      *       exponential number check is modified for RTL non-Latin number
      *       systems (Arabic-Indic numbering). I'm also switching out the period
      *       for the decimal separator. The formal definition leaves out +- from
      *       the integer and decimal notations so add that.  This also checks
      *       that a grouping sperator is not in the last GROUPING_SIZE graphemes
      *       of the string - i.e. 10,6 is not valid for en-US.
      * @see http://www.php.net/float
      */
     $lnum = '[' . $numberRange . ']+';
     $dnum = '(([' . $numberRange . ']*' . $decimal . $lnum . ')|(' . $lnum . $decimal . '[' . $numberRange . ']*))';
     $expDnum = '((' . $prefix . '((' . $lnum . '|' . $dnum . ')' . $exp . $prefix . $lnum . ')' . $suffix . ')|' . '(' . $suffix . '(' . $lnum . $prefix . $exp . '(' . $dnum . '|' . $lnum . '))' . $prefix . '))';
     // LEFT-TO-RIGHT MARK (U+200E) is messing up everything for the handful
     // of locales that have it
     $lnumSearch = str_replace("‎", '', '/^' . $prefix . $lnum . $suffix . '$/' . $useUnicode);
     $dnumSearch = str_replace("‎", '', '/^' . $prefix . $dnum . $suffix . '$/' . $useUnicode);
     $expDnumSearch = str_replace("‎", '', '/^' . $expDnum . '$/' . $useUnicode);
     $value = str_replace("‎", '', $value);
     $unGroupedValue = str_replace($groupSeparator, '', $value);
     // No strrpos() in wrappers yet. ICU 4.x doesn't have grouping size for
     // everything. ICU 52 has 3 for ALL locales.
     $groupSize = $formatter->getAttribute(NumberFormatter::GROUPING_SIZE) ? $formatter->getAttribute(NumberFormatter::GROUPING_SIZE) : 3;
     $lastStringGroup = $this->wrapper->substr($value, -$groupSize);
     if ((preg_match($lnumSearch, $unGroupedValue) || preg_match($dnumSearch, $unGroupedValue) || preg_match($expDnumSearch, $unGroupedValue)) && false === $this->wrapper->strpos($lastStringGroup, $groupSeparator)) {
         return true;
     }
     return false;
 }

 /**
  * _inflectName
  *
  * @param string $name
  * @return string
  */
 private function _inflectName($name)
 {
     if (StringUtils::hasPcreUnicodeSupport()) {
         $pattern = ['#(?<=(?:\\p{Lu}))(\\p{Lu}\\p{Ll})#', '#(?<=(?:\\p{Ll}|\\p{Nd}))(\\p{Lu})#'];
         $replacement = ['-\\1', '-\\1'];
     } else {
         $pattern = ['#(?<=(?:[A-Z]))([A-Z]+)([A-Z][a-z])#', '#(?<=(?:[a-z0-9]))([A-Z])#'];
         $replacement = ['\\1-\\2', '-\\1'];
     }
     $name = preg_replace($pattern, $replacement, $name);
     return strtolower($name);
 }

 protected function camelCaseToUnderscore($value)
 {
     if (!is_scalar($value) && !is_array($value)) {
         return $value;
     }
     if (StringUtils::hasPcreUnicodeSupport()) {
         $pattern = ['#(?<=(?:\\p{Lu}))(\\p{Lu}\\p{Ll})#', '#(?<=(?:\\p{Ll}|\\p{Nd}))(\\p{Lu})#'];
         $replacement = ['_\\1', '_\\1'];
     } else {
         $pattern = ['#(?<=(?:[A-Z]))([A-Z]+)([A-Z][a-z])#', '#(?<=(?:[a-z0-9]))([A-Z])#'];
         $replacement = ['\\1_\\2', '_\\1'];
     }
     return preg_replace($pattern, $replacement, $value);
 }