Namespaces

  • Latte
    • Loaders
    • Macros
    • Runtime
  • Nette
    • Application
      • Responses
      • Routers
      • UI
    • Bridges
      • ApplicationDI
      • ApplicationLatte
      • ApplicationTracy
      • CacheDI
      • CacheLatte
      • DatabaseDI
      • DatabaseTracy
      • DITracy
      • FormsDI
      • FormsLatte
      • Framework
      • HttpDI
      • HttpTracy
      • MailDI
      • ReflectionDI
      • SecurityDI
      • SecurityTracy
    • Caching
      • Storages
    • ComponentModel
    • Database
      • Conventions
      • Drivers
      • Reflection
      • Table
    • DI
      • Config
        • Adapters
      • Extensions
    • Diagnostics
    • Forms
      • Controls
      • Rendering
    • Http
    • Iterators
    • Latte
    • Loaders
    • Localization
    • Mail
    • Neon
    • PhpGenerator
    • Reflection
    • Security
    • Templating
    • Utils
  • NetteModule
  • none
  • Tracy
    • Bridges
      • Nette

Classes

  • ClassType
  • Helpers
  • Method
  • Parameter
  • PhpFile
  • PhpLiteral
  • PhpNamespace
  • Property
  • Overview
  • Namespace
  • Class
  • Tree
  • Deprecated
  1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (http://nette.org)
  5:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
  6:  */
  7: 
  8: namespace Nette\PhpGenerator;
  9: 
 10: use Nette;
 11: 
 12: 
 13: /**
 14:  * PHP code generator utils.
 15:  */
 16: class Helpers
 17: {
 18:     const PHP_IDENT = '[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*';
 19:     const MAX_DEPTH = 50;
 20: 
 21: 
 22:     /**
 23:      * Returns a PHP representation of a variable.
 24:      * @return string
 25:      */
 26:     public static function dump($var)
 27:     {
 28:         return self::_dump($var);
 29:     }
 30: 
 31: 
 32:     private static function _dump(& $var, $level = 0)
 33:     {
 34:         if ($var instanceof PhpLiteral) {
 35:             return (string) $var;
 36: 
 37:         } elseif (is_float($var)) {
 38:             $var = var_export($var, TRUE);
 39:             return strpos($var, '.') === FALSE ? $var . '.0' : $var;
 40: 
 41:         } elseif (is_bool($var)) {
 42:             return $var ? 'TRUE' : 'FALSE';
 43: 
 44:         } elseif (is_string($var) && (preg_match('#[^\x09\x20-\x7E\xA0-\x{10FFFF}]#u', $var) || preg_last_error())) {
 45:             static $table;
 46:             if ($table === NULL) {
 47:                 foreach (array_merge(range("\x00", "\x1F"), range("\x7F", "\xFF")) as $ch) {
 48:                     $table[$ch] = '\x' . str_pad(dechex(ord($ch)), 2, '0', STR_PAD_LEFT);
 49:                 }
 50:                 $table['\\'] = '\\\\';
 51:                 $table["\r"] = '\r';
 52:                 $table["\n"] = '\n';
 53:                 $table["\t"] = '\t';
 54:                 $table['$'] = '\$';
 55:                 $table['"'] = '\"';
 56:             }
 57:             return '"' . strtr($var, $table) . '"';
 58: 
 59:         } elseif (is_string($var)) {
 60:             return "'" . preg_replace('#\'|\\\\(?=[\'\\\\]|\z)#', '\\\\$0', $var) . "'";
 61: 
 62:         } elseif (is_array($var)) {
 63:             $space = str_repeat("\t", $level);
 64: 
 65:             static $marker;
 66:             if ($marker === NULL) {
 67:                 $marker = uniqid("\x00", TRUE);
 68:             }
 69:             if (empty($var)) {
 70:                 $out = '';
 71: 
 72:             } elseif ($level > self::MAX_DEPTH || isset($var[$marker])) {
 73:                 throw new Nette\InvalidArgumentException('Nesting level too deep or recursive dependency.');
 74: 
 75:             } else {
 76:                 $out = '';
 77:                 $outAlt = "\n$space";
 78:                 $var[$marker] = TRUE;
 79:                 $counter = 0;
 80:                 foreach ($var as $k => & $v) {
 81:                     if ($k !== $marker) {
 82:                         $item = ($k === $counter ? '' : self::_dump($k, $level + 1) . ' => ') . self::_dump($v, $level + 1);
 83:                         $counter = is_int($k) ? max($k + 1, $counter) : $counter;
 84:                         $out .= ($out === '' ? '' : ', ') . $item;
 85:                         $outAlt .= "\t$item,\n$space";
 86:                     }
 87:                 }
 88:                 unset($var[$marker]);
 89:             }
 90:             return 'array(' . (strpos($out, "\n") === FALSE && strlen($out) < 40 ? $out : $outAlt) . ')';
 91: 
 92:         } elseif ($var instanceof \Serializable) {
 93:             $var = serialize($var);
 94:             return 'unserialize(' . self::_dump($var, $level) . ')';
 95: 
 96:         } elseif (is_object($var)) {
 97:             $arr = (array) $var;
 98:             $space = str_repeat("\t", $level);
 99:             $class = get_class($var);
100: 
101:             static $list = array();
102:             if ($level > self::MAX_DEPTH || in_array($var, $list, TRUE)) {
103:                 throw new Nette\InvalidArgumentException('Nesting level too deep or recursive dependency.');
104: 
105:             } else {
106:                 $out = "\n";
107:                 $list[] = $var;
108:                 if (method_exists($var, '__sleep')) {
109:                     foreach ($var->__sleep() as $v) {
110:                         $props[$v] = $props["\x00*\x00$v"] = $props["\x00$class\x00$v"] = TRUE;
111:                     }
112:                 }
113:                 foreach ($arr as $k => & $v) {
114:                     if (!isset($props) || isset($props[$k])) {
115:                         $out .= "$space\t" . self::_dump($k, $level + 1) . ' => ' . self::_dump($v, $level + 1) . ",\n";
116:                     }
117:                 }
118:                 array_pop($list);
119:                 $out .= $space;
120:             }
121:             return $class === 'stdClass'
122:                 ? "(object) array($out)"
123:                 : __CLASS__ . "::createObject('$class', array($out))";
124: 
125:         } elseif (is_resource($var)) {
126:             throw new Nette\InvalidArgumentException('Cannot dump resource.');
127: 
128:         } else {
129:             return var_export($var, TRUE);
130:         }
131:     }
132: 
133: 
134:     /**
135:      * Generates PHP statement.
136:      * @return string
137:      */
138:     public static function format($statement)
139:     {
140:         $args = func_get_args();
141:         return self::formatArgs(array_shift($args), $args);
142:     }
143: 
144: 
145:     /**
146:      * Generates PHP statement.
147:      * @return string
148:      */
149:     public static function formatArgs($statement, array $args)
150:     {
151:         $a = strpos($statement, '?');
152:         while ($a !== FALSE) {
153:             if (!$args) {
154:                 throw new Nette\InvalidArgumentException('Insufficient number of arguments.');
155:             }
156:             $arg = array_shift($args);
157:             if (substr($statement, $a + 1, 1) === '*') { // ?*
158:                 if (!is_array($arg)) {
159:                     throw new Nette\InvalidArgumentException('Argument must be an array.');
160:                 }
161:                 $s = substr($statement, 0, $a);
162:                 $sep = '';
163:                 foreach ($arg as $tmp) {
164:                     $s .= $sep . self::dump($tmp);
165:                     $sep = strlen($s) - strrpos($s, "\n") > 100 ? ",\n\t" : ', ';
166:                 }
167:                 $statement = $s . substr($statement, $a + 2);
168:                 $a = strlen($s);
169: 
170:             } else {
171:                 $arg = substr($statement, $a - 1, 1) === '$' || in_array(substr($statement, $a - 2, 2), array('->', '::'), TRUE)
172:                     ? self::formatMember($arg) : self::_dump($arg);
173:                 $statement = substr_replace($statement, $arg, $a, 1);
174:                 $a += strlen($arg);
175:             }
176:             $a = strpos($statement, '?', $a);
177:         }
178:         return $statement;
179:     }
180: 
181: 
182:     /**
183:      * Returns a PHP representation of a object member.
184:      * @return string
185:      */
186:     public static function formatMember($name)
187:     {
188:         return $name instanceof PhpLiteral || !self::isIdentifier($name)
189:             ? '{' . self::_dump($name) . '}'
190:             : $name;
191:     }
192: 
193: 
194:     /**
195:      * @return bool
196:      */
197:     public static function isIdentifier($value)
198:     {
199:         return is_string($value) && preg_match('#^' . self::PHP_IDENT . '\z#', $value);
200:     }
201: 
202: 
203:     /** @internal */
204:     public static function createObject($class, array $props)
205:     {
206:         return unserialize('O' . substr(serialize((string) $class), 1, -1) . substr(serialize($props), 1));
207:     }
208: 
209: 
210:     /**
211:      * @param  string
212:      * @return string
213:      */
214:     public static function extractNamespace($name)
215:     {
216:         return ($pos = strrpos($name, '\\')) ? substr($name, 0, $pos) : '';
217:     }
218: 
219: 
220:     /**
221:      * @param  string
222:      * @return string
223:      */
224:     public static function extractShortName($name)
225:     {
226:         return ($pos = strrpos($name, '\\')) === FALSE ? $name : substr($name, $pos + 1);
227:     }
228: 
229: }
230: 
Nette 2.3.4 API API documentation generated by ApiGen 2.8.0