GIF89a=( õ' 7IAXKgNgYvYx\%wh…hŽth%ˆs%—x¨}9®Œ©€&©‰%¶†(¹–.¹5·œD¹&Çš)ÇŸ5ǘ;Í£*È¡&Õ²)ׯ7×µ<Ñ»4ï°3ø‘HÖ§KͯT÷¨Yÿšqÿ»qÿÔFØ !ù ' !ÿ NETSCAPE2.0 , =( þÀ“pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§gª«ªE¯°¨¬ª±²Œ¹º¹E¾­”´ÂB¶¯ §Åȸ»ÑD¾¿Á•ÄÅ®° ÝH¾ÒLÀÆDÙ«D¶BÝïðÀ¾DÑÑÔTÌÍíH òGö¨A RÎڐ |¥ ٭&ºìE8œ¹kGÔAÞpx­a¶­ã R2XB®åE8I€Õ6Xî:vT)äžþÀq¦è³¥ì仕F~%xñ  4#ZÔ‰O|-4Bs‘X:= QÉ œš lºÒyXJŠGȦ|s hÏíK–3l7·B|¥$'7Jީܪ‰‡àá”Dæn=Pƒ ¤Òëí‰`䌨ljóá¯Éüv>á–Á¼5 ½.69ûϸd«­ºÀûnlv©‹ªîf{¬ÜãPbŸ  l5‘Ž¯pß ´ ˜3aÅùäI«O’ý·‘áÞ‡˜¾Æ‚ÙÏiÇÿ‹Àƒ #öó)pâš Þ½ ‘Ý{ó)vmÞü%D~ 6f s}ŃƒDØW Eþ`‡þ À…L8xá†ç˜{)x`X/> Ì}mø‚–RØ‘*|`D=‚Ø_ ^ð5 !_…'aä“OÚ—7âcð`D”Cx`ÝÂ¥ä‹éY¹—F¼¤¥Š?¡Õ™ n@`} lď’ÄÉ@4>ñd œ à‘vÒxNÃ×™@žd=ˆgsžG±æ ´²æud &p8Qñ)ˆ«lXD©øÜéAžHìySun jª×k*D¤LH] †¦§C™Jä–´Xb~ʪwStŽ6K,°£qÁœ:9ت:¨þªl¨@¡`‚ûÚ ».Û¬¯t‹ÆSÉ[:°=Š‹„‘Nåû”Ìî{¿ÂA ‡Rà›ÀÙ6úë°Ÿð0Ä_ ½;ÃϱîÉì^ÇÛÇ#Ëë¼ôº!±Ä˜íUîÅÇ;0L1óÁµö«p% AÀºU̬ݵ¼á%霼€‡¯Á~`ÏG¯»À× ­²± =4ªnpð3¾¤³¯­ü¾¦îuÙuµÙ®|%2ÊIÿür¦#0·ÔJ``8È@S@5ê¢ ö×Þ^`8EÜ]ý.뜃Âç 7 ú ȉÞj œ½Dç zý¸iþœÑÙûÄë!ˆÞÀl§Ïw‹*DçI€nEX¯¬¼ &A¬Go¼QföõFç°¯;é¦÷îŽêJ°îúôF5¡ÌQ|îúöXªæ»TÁÏyñêï]ê² o óÎC=öõ›ÒÓPB@ D×½œä(>èCÂxŽ`±«Ÿ–JЀ»Û á¤±p+eE0`ëŽ`A Ú/NE€Ø†À9‚@¤à H½7”à‡%B‰`Àl*ƒó‘–‡8 2ñ%¸ —€:Ù1Á‰E¸àux%nP1ð!‘ðC)¾P81lÑɸF#ˆ€{´âé°ÈB„0>±û °b¡Š´±O‚3È–Ù()yRpbµ¨E.Z‘D8ÊH@% òŒx+%Ù˜Æcü »¸˜fõ¬b·d`Fê™8èXH"ÉÈ-±|1Ô6iI, 2““¬$+](A*jÐ QTÂo‰.ÛU슬Œã„Ž`¯SN¡–¶Äåyše¯ª’­¬‚´b¦Éož œ)åyâ@Ì®3 ÎtT̉°&Ø+žLÀf"Ø-|žçÔ>‡Ðv¦Ðžì\‚ Q1)Ž@Žh#aP72”ˆ™¨$‚ !ù " , =( …7IAXG]KgNgYvYxR"k\%w]'}hŽth%ˆg+ˆs%—r.—m3šx3˜x¨}9®€&©€+¨‡7§‰%¶†(¹–.¹œD¹&ǘ;Í•&ײ)×»4ïÌ6ò§KÍ þ@‘pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g «¬ E ±± ¨­¶°ººE Á´”·®C¬²§Ç¶Œ»ÓDÃÕƷ¯Ê±H½ºM×ÁGÚ¬D¶BËÁ½î½DÓôTÏÛßîG»ôõC×CÌ l&âž:'òtU³6ɹ#·Ø)€'Ü.6±&ëÍÈ» K(8p0N?!æ2"ÛˆNIJX>R¼ÐO‚M '¡¨2¸*Ÿþ>#n↠å@‚<[:¡Iïf’ ¤TÚ˘CdbÜÙ“[«ŽEú5MBo¤×@€`@„€Êt W-3 ¶Ÿ¡BíêäjIÝ…Eò9[T…$íêﯧ„…•s»Óȳ¹€ÅÚdc®UUρ#±Ùïldj?´í¼²`\ŽÁðÞu|3'ÖŒ]ë6 ¶S#²‡˜FKLÈ *N E´‘áäŠ$˜›eÄYD„ºq«.è촁ƒs \-ÔjA 9²õ÷å- üúM[Âx(ís÷ì®x€|í¡Ù’p¦‚ ŽkÛTÇDpE@WÜ ²Ç]kŠ1¨ þ€·Yb ÓÁ‰l°*n0 ç™—žzBdОu¾7ĉBl€â‰-ºx~|UåU‰  h*Hœ|e"#"?vpÄiŠe6^ˆ„+qâŠm8 #VÇá ‘å–ÄV„œ|Šè•m"сœn|@›U¶ÆΞ—Špb¥G¨ED”€±Úê2FÌIç? >Éxå Œ± ¡¤„%‘žjŸ‘ꄯ<Ìaà9ijÐ2˜D¦È&›†Z`‚å]wþ¼Â:ç6àB¤7eFJ|õÒ§Õ,¨äàFÇ®cS·Ê¶+B°,‘Þ˜ºNûãØ>PADÌHD¹æž«ÄÀnÌ¥}­#Ë’ë QÀÉSÌÂÇ2ÌXÀ{æk²lQÁ2«ÊðÀ¯w|2Í h‹ÄÂG€,m¾¶ë3ÐÙ6-´ÅE¬L°ÆIij*K½ÀÇqï`DwVÍQXœÚÔpeœ±¬Ñ q˜§Tœ½µƒ°Œìu Â<¶aØ*At¯lmEØ ü ôÛN[P1ÔÛ¦­±$ÜÆ@`ùåDpy¶yXvCAyåB`ŽD¶ 0QwG#¯ æš[^Äþ $ÀÓÝǦ{„L™[±úKÄgÌ;ï£S~¹ìGX.ôgoT.»åˆ°ùŸûù¡?1zö¦Ÿž:ÅgÁ|ìL¹ „®£œŠ‚à0œ]PÁ^p F<"•ç?!,ñ‡N4—…PÄ Á„ö¨Û:Tè@hÀ‹%táÿ:ø-žI<`þ‹p I….)^ 40D#p@ƒj4–؀:²‰1Øâr˜¼F2oW¼#Z†;$Q q” ‘ ÂK¦ñNl#29 !’F@¥Bh·ᏀL!—XFóLH‘Kh¤.«hE&JòG¨¥<™WN!€ÑÙÚˆY„@†>Œž19J" 2,/ &.GXB%ÌRÈ9B6¹W]’î×ÔW¥’IÎ$ ñ‹ÓŒE8YÆ ¼³™ñA5“à®Q.aŸB€&Ø©³ JÁ—! ¦t)K%tœ-¦JF bòNMxLôþ)ÐR¸Ð™‘ èÝ6‘O!THÌ„HÛ ‰ !ù ) , =( …AXKgNgYvYxR"k\%wh…hŽh%ˆg+ˆs%—r.—x3˜x¨}9®€&©€+¨Œ,©‡7§‰%¶†(¹–.¹5·&Çš)ǘ;Í•&×£*Ȳ)ׯ7×»4ï°3øÌ6ò‘HÖ§KÍ»Hó¯T÷¨Yÿ»qÿÇhÿ þÀ”pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g ª« E$±²¨ª­ · °²½$E$ÂÕ««D· Í ¿¦Ç¶¸ÌŒ¾³CÃÅÆ E ééH½MÛÂGâªD­ çBêêϾD²ÒaÀà€Š1r­ðÓ¤ ÔožzU!L˜C'¾yW½UGtäÇïÙllê0×àÂuGþ)AÀs[þ·xì ÁxO%ƒûX2ó—  P£n›R/¡ÑšHše+êDm?# —‘Ç£6¡8íJ¡ŸâDiäªM¥Ö„ôj“¬¹£5oQ7°- <‡ *´lãÓŒ2r/a!l)dÈ A™ÈE¢ôÔ͆…ð ;Ö˜c ¡%ß‚’Ùˆâ¸b½—pe~C"BíëÚHïeF2§æŠ8qb t_`urŠeü wÅu3êæPv§h•"ß`íÍxçLĹÜÖ3á  ~Öº“®›¸ÏMDfJÙ °„ÛµáWõ%§œ‚à©–‚X Ó؁)@®Ñ›Eþ´wëuÅSxb8y\mÖzœ¥§ZbºE—ÂLªÌw!y(>¡™wú=Ç|ÅÝs¢d €CÁW)HÜcC$€L Ä7„r.á\{)@ð` @ äXÈ$PD” `šaG:§æˆOˆ72EÐamn]ù"ŒcÊxÑŒ° &dR8`g«iÙŸLR!¦P …d’ä¡“¦ðÎTƒ¦ià|À _ ¥ Qi#¦Šg›Æ ›noMµ ›V ã£)p ç£ÎW…š=Âeªk§†j„ ´®1ß²sÉxéW«jšl|0¯B0Û, \jÛ´›6±¬¶C ÛíWþï|ëÙ‹¸ñzĸV {ì;Ýñn¼òVˆm³I¼³.Ðã¤PN¥ ²µ¼„µCã+¹ÍByî£Ñ¾HŸ›ëê 7ìYÆFTk¨SaoaY$Dµœìï¿Ã29RÈkt Çïfñ ÇÒ:ÀÐSp¹3ÇI¨â¥DZÄ ü9Ïýögñ½­uÔ*3)O‘˜Ö[_hv ,àî×Et Ÿé¶BH€ Õ[ü±64M@ÔSÌM7dÐl5-ÄÙU܍´©zߌ3Ô€3ž„ „ ¶ÛPô½5×g› êÚ˜kN„Ý…0Îj4€Ìë°“#{þÕ3S2çKÜ'ợlø¼Ú2K{° {Û¶?žm𸧠ËI¼nEò='êüóºè^üæÃ_Û=°óž‚ì#Oý¿Í'¡½áo..ÏYìnüñCœO±Áa¿¢Kô½o,üÄËbö²çºíï{ËC Ú— "”Ï{ËK ÍÒw„õ±Oz dÕ¨à:$ ƒô—«v»] A#ð «€¿šéz)Rx׿ˆ¥‚d``èw-îyÏf×K!ð€þ­Ð|ìPľ„=Ì`ý(f” 'Pa ¥ÐBJa%Ðâf§„%Š¡}FàáÝ×6>ÉäŠG"éŽè=ø!oŠ°^FP¼Ø©Q„ÀCÙÁ`(Ž\ÄÝ® ©Â$<n@dÄ E#ììUÒI! ‚#lù‹`k¦ÐÇ'Rró’ZýNBÈMF Í[¤+‹ðɈ-áwj¨¥þ8¾rá ,VÂh„"|½œ=×G_¦Ñ™EØ 0i*%̲˜Æda0mV‚k¾)›;„&6 p>ÓjK “¦Ç# âDÂ:ûc?:R Ó¬fÞéI-Ì“•Ã<ä=™Ï7˜3œ¨˜c2ŒW ,ˆ”8(T™P‰F¡Jhç"‚ ; 403WebShell
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Current File : /opt/cloudlinux/alt-php54/root/usr/share/pear/ezc/ConsoleTools/input/option.php
<?php
/**
 * File containing the ezcConsoleOption class.
 *
 * @package ConsoleTools
 * @version 1.6.1
 * @copyright Copyright (C) 2005-2010 eZ Systems AS. All rights reserved.
 * @license http://ez.no/licenses/new_bsd New BSD License
 * @filesource
 */

/**
 * Objects of this class store data about a single option for ezcConsoleInput.
 *
 * This class represents a single command line option, which can be handled by 
 * the ezcConsoleInput class. This classes only purpose is the storage of
 * the parameter data, the handling of options and arguments is done by the
 * class {@link ezcConsoleInput}.
 * 
 * @property-read string $short
 *                Short name of the parameter without '-' (eg. 'f').
 * @property-read string $long
 *                Long name of the parameter without '--' (eg. 'file').
 * @property int $type
 *           Value type of this parameter, default is ezcConsoleInput::TYPE_NONE.
 *           See {@link ezcConsoleInput::TYPE_NONE},
 *           {@link ezcConsoleInput::TYPE_INT} and
 *           {@link ezcConsoleInput::TYPE_STRING}.
 * @property mixed $default
 *           Default value if the parameter is submitted without value.  If a
 *           parameter is eg. of type ezcConsoleInput::TYPE_STRING and
 *           therefore expects a value when being submitted, it may be
 *           submitted without a value and automatically get the default value
 *           specified here.
 * @property bool $multiple
 *           Is the submission of multiple instances of this parameters
 *           allowed? 
 * @property string $shorthelp
 *           Short help text. Usually displayed when showing parameter help
 *           overview.
 * @property string $longhelp
 *           Long help text. Usually displayed when showing parameter detailed
 *           help.
 * @property bool $arguments
 *           Whether arguments to the program are allowed, when this parameter
 *           is submitted. 
 * @property bool $mandatory
 *           Whether a parameter is mandatory to be set.  If this flag is true,
 *           the parameter must be submitted whenever the program is run.
 * @property bool $isHelpOption
 *           Whether a parameter is a help option.  If this flag is true, and
 *           the parameter is set, all options marked as mandatory may be
 *           skipped.
 *
 * @package ConsoleTools
 * @version 1.6.1
 */
class ezcConsoleOption
{
    /**
     * Container to hold the properties
     *
     * @var array(string=>mixed)
     */
    protected $properties;

    /**
     * Dependency rules of this parameter.
     * 
     * @see ezcConsoleOption::addDependency()
     * @see ezcConsoleOption::removeDependency()
     * @see ezcConsoleOption::hasDependency()
     * @see ezcConsoleOption::getDependencies()
     * @see ezcConsoleOption::resetDependencies()
     * 
     * @var array(string=>ezcConsoleParamemterRule)
     */
    protected $dependencies = array();

    /**
     * Exclusion rules of this parameter.
     * 
     * @see ezcConsoleOption::addExclusion()
     * @see ezcConsoleOption::removeExclusion()
     * @see ezcConsoleOption::hasExclusion()
     * @see ezcConsoleOption::getExclusions()
     * @see ezcConsoleOption::resetExclusions()
     * 
     * @var array(string=>ezcConsoleParamemterRule)
     */
    protected $exclusions = array();

    /**
     * The value the parameter was assigned to when being submitted.
     * Boolean false indicates the parameter was not submitted, boolean
     * true means the parameter was submitted, but did not have a value.
     * In any other case, this caries the submitted value.
     * 
     * @var mixed
     */
    public $value = false;

    /**
     * Create a new parameter struct.
     * Creates a new basic parameter struct with the base information "$short"
     * (the short name of the parameter) and "$long" (the long version). You
     * simply apply these parameters as strings (without '-' or '--'). So
     *
     * <code>
     * $param = new ezcConsoleOption( 'f', 'file' );
     * </code>
     *
     * will result in a parameter that can be accessed using
     * 
     * <code>
     * $ mytool -f
     * </code>
     *
     * or
     * 
     * <code>
     * $ mytool --file
     * </code>
     * .
     *
     * The newly created parameter contains only it's 2 names and each other 
     * attribute is set to it's default value. You can simply manipulate
     * those attributes by accessing them directly.
     * 
     * @param string $short      Short name of the parameter without '-' (eg. 'f').
     * @param string $long       Long name of the parameter without '--' (eg. 'file').
     * @param int $type          Value type of the parameter. One of ezcConsoleInput::TYPE_*.
     * @param mixed $default     Default value the parameter holds if not submitted.
     * @param bool $multiple     If the parameter may be submitted multiple times.
     * @param string $shorthelp  Short help text.
     * @param string $longhelp   Long help text.
     * @param array(ezcConsoleOptionRule) $dependencies Dependency rules.
     * @param array(ezcConsoleOptionRule) $exclusions   Exclusion rules.
     * @param bool $arguments    Whether supplying arguments is allowed when this parameter is set.
     * @param bool $mandatory    Whether the parameter must be always submitted.
     * @param bool $isHelpOption Indicates that the given parameter is a help 
     *                           option. If a help option is set, all rule 
     *                           checking is skipped (dependency/exclusion/
     *                           mandatory).
     *
     * @throws ezcConsoleInvalidOptionNameException If the option names start with a "-" 
     *                                              sign or contain whitespaces.
     */
    public function __construct( 
        $short = '', 
        $long, 
        $type = ezcConsoleInput::TYPE_NONE, 
        $default = null, 
        $multiple = false,
        $shorthelp = 'No help available.',
        $longhelp = 'Sorry, there is no help text available for this parameter.', 
        array $dependencies = array(),
        array $exclusions = array(), 
        $arguments = true,
        $mandatory = false,
        $isHelpOption = false
    )
    {
        $this->properties['short'] = '';
        $this->properties['long'] = '';
        $this->properties['arguments'] = $arguments;

        if ( !self::validateOptionName( $short ) )
        {
            throw new ezcConsoleInvalidOptionNameException( $short );
        }
        $this->properties['short'] = $short;
        
        if ( !self::validateOptionName( $long ) )
        {
            throw new ezcConsoleInvalidOptionNameException( $long );
        }
        $this->properties['long'] = $long;
        
        $this->__set( "type",      $type         !== null ? $type      : ezcConsoleInput::TYPE_NONE  );
        $this->__set( "multiple",  $multiple     !== null ? $multiple  : false  );
        $this->__set( "default",   $default      !== null ? $default   : null );
        $this->__set( "shorthelp", $shorthelp    !== null ? $shorthelp : 'No help available.' );
        $this->__set( "longhelp",  $longhelp     !== null ? $longhelp  : 'Sorry, there is no help text available for this parameter.' );
        
        $dependencies    = $dependencies !== null && is_array( $dependencies ) ? $dependencies : array();
        foreach ( $dependencies as $dep )
        {
            $this->addDependency( $dep );
        }
        
        $exclusions = $exclusions !== null && is_array( $exclusions ) ? $exclusions : array();
        foreach ( $exclusions as $exc )
        {
            $this->addExclusion( $exc );
        }

        $this->__set( "mandatory",    $mandatory !== null ? $mandatory : false );
        $this->__set( "isHelpOption", $isHelpOption !== null ? $isHelpOption : false );
    }

    /**
     * Add a new dependency for a parameter.
     * This registeres a new dependency rule with the parameter. If you try
     * to add an already registered rule it will simply be ignored. Else,
     * the submitted rule will be added to the parameter as a dependency.
     *
     * @param ezcConsoleOptionRule $rule The rule to add.
     * @return void
     */
    public function addDependency( ezcConsoleOptionRule $rule )
    {
        foreach ( $this->dependencies as $existRule )
        {
            if ( $rule == $existRule )
            {
                return;
            }
        }
        $this->dependencies[] = $rule;
    }
    
    /**
     * Remove a dependency rule from a parameter.
     * This removes a given rule from a parameter, if it exists. If the rule is
     * not registered with the parameter, the method call will simply be ignored.
     * 
     * @param ezcConsoleOptionRule $rule The rule to be removed.
     * @return void
     */
    public function removeDependency( ezcConsoleOptionRule $rule )
    {
        foreach ( $this->dependencies as $id => $existRule )
        {
            if ( $rule == $existRule )
            {
                unset( $this->dependencies[$id] );
            }
        }
    }
    
    /**
     * Remove all dependency rule referring to a parameter.
     * This removes all dependency rules from a parameter, that refer to as specific 
     * parameter. If no rule is registered with this parameter as reference, the 
     * method call will simply be ignored.
     * 
     * @param ezcConsoleOption $param The param to be check for rules.
     * @return void
     */
    public function removeAllDependencies( ezcConsoleOption $param )
    {
        foreach ( $this->dependencies as $id => $rule )
        {
            if ( $rule->option == $param )
            {
                unset( $this->dependencies[$id] );
            }
        }
    }
    
    /**
     * Returns if a dependency to the given option exists.
     * Returns true if a dependency rule to the given option is registered,
     * otherwise false.
     * 
     * @param ezcConsoleOption $param The param to check if a dependency exists to.
     * @return bool True if rule is registered, otherwise false.
     */
    public function hasDependency( ezcConsoleOption $param )
    {
        foreach ( $this->dependencies as $id => $rule )
        {
            if ( $rule->option == $param )
            {
                return true;
            }
        }
        return false;
    }
    
    /**
     * Returns the dependency rules registered with this parameter.
     * Returns an array of registered dependencies.
     *
     * For example:
     * <code>
     * array(
     *      0 => ezcConsoleOptionRule,
     *      1 => ezcConsoleOptionRule,
     *      2 => ezcConsoleOptionRule,
     * );
     * </code>
     * 
     * @return array(ezcConsoleOptionRule) Dependency definition.
     */
    public function getDependencies()
    {
        return $this->dependencies;
    }

    /**
     * Reset existing dependency rules.
     * Deletes all registered dependency rules from the option definition.
     * 
     * @return void
     */
    public function resetDependencies() 
    {
        $this->dependencies = array();
    }

    /**
     * Add a new exclusion for an option.
     * This registeres a new exclusion rule with the option. If you try
     * to add an already registered rule it will simply be ignored. Else,
     * the submitted rule will be added to the option as a exclusion.
     *
     * @param ezcConsoleOptionRule $rule The rule to add.
     * @return void
     */
    public function addExclusion( ezcConsoleOptionRule $rule )
    {
        foreach ( $this->exclusions as $existRule )
        {
            if ( $rule == $existRule )
            {
                return;
            }
        }
        $this->exclusions[] = $rule;
    }
    
    /**
     * Remove a exclusion rule from a option.
     * This removes a given rule from a option, if it exists. If the rule is
     * not registered with the option, the method call will simply be ignored.
     * 
     * @param ezcConsoleOptionRule $rule The rule to be removed.
     * @return void
     */
    public function removeExclusion( ezcConsoleOptionRule $rule )
    {
        foreach ( $this->exclusions as $id => $existRule )
        {
            if ( $rule == $existRule )
            {
                unset( $this->exclusions[$id] );
            }
        }
    }
    
    /**
     * Remove all exclusion rule referring to a option.
     * This removes all exclusion rules from a option, that refer to as specific 
     * option. If no rule is registered with this option as reference, the 
     * method call will simply be ignored.
     * 
     * @param ezcConsoleOption $param The option to remove rule for.
     * @return void
     */
    public function removeAllExclusions( ezcConsoleOption $param )
    {
        foreach ( $this->exclusions as $id => $rule )
        {
            if ( $rule->option == $param )
            {
                unset( $this->exclusions[$id] );
            }
        }
    }
    
    /**
     * Returns if a given exclusion rule is registered with the option.
     * Returns true if a exclusion rule to the given option is registered,
     * otherwise false.
     * 
     * @param ezcConsoleOption $param The param to check if exclusions exist for.
     * @return bool True if rule is registered, otherwise false.
     */
    public function hasExclusion( ezcConsoleOption $param )
    {
        foreach ( $this->exclusions as $id => $rule )
        {
            if ( $rule->option == $param )
            {
                return true;
            }
        }
        return false;
    }
    
    /**
     * Returns the exclusion rules registered with this parameter.
     * Returns an array of registered exclusions.
     *
     * For example:
     * <code>
     * array(
     *      0 => ezcConsoleOptionRule,
     *      1 => ezcConsoleOptionRule,
     *      2 => ezcConsoleOptionRule,
     * );
     * </code>
     * 
     * @return array(ezcConsoleOptionRule) Exclusions definition.
     */
    public function getExclusions()
    {
        return $this->exclusions;
    }

    /**
     * Reset existing exclusion rules.
     * Deletes all registered exclusion rules from the option definition.
     *
     * @return void
     */
    public function resetExclusions() 
    {
        $this->exclusions = array();
    }
    
    /**
     * Property read access.
     * Provides read access to the properties of the object.
     * 
     * @param string $key The name of the property.
     * @return mixed The value if property exists and isset, otherwise null.
     * @ignore
     */
    public function __get( $key )
    {
        switch ( $key  )
        {
            case 'short':
            case 'long':
            case 'type':
            case 'default':
            case 'multiple':
            case 'shorthelp':
            case 'longhelp':
            case 'arguments':
            case 'isHelpOption':
            case 'mandatory':
                return $this->properties[$key];
            case 'dependencies':
            default:
                throw new ezcBasePropertyNotFoundException( $key );
        }
    }

    /**
     * Property write access.
     * 
     * @param string $key Name of the property.
     * @param mixed $val  The value for the property.
     *
     * @throws ezcBasePropertyPermissionException
     *         If the property you try to access is read-only.
     * @throws ezcBasePropertyNotFoundException 
     *         If the the desired property is not found.
     * @ignore
     */
    public function __set( $key, $val )
    {
        switch ( $key )
        {
            case 'type':
                if ( $val !== ezcConsoleInput::TYPE_NONE 
                     && $val !== ezcConsoleInput::TYPE_INT 
                     && $val !== ezcConsoleInput::TYPE_STRING )
                {
                    throw new ezcBaseValueException( 
                        $key,  
                        $val, 
                        'ezcConsoleInput::TYPE_STRING, ezcConsoleInput::TYPE_INT or ezcConsoleInput::TYPE_NONE' 
                    );
                }
                break;
            case 'default':
                if ( ( is_scalar( $val ) === false && $val !== null ) )
                {
                    // Newly allow arrays, if multiple is true
                    if ( $this->multiple === true && is_array( $val ) === true )
                    {
                        break;
                    }
                    throw new ezcBaseValueException( $key, $val, 'a string or a number, if multiple == true also an array' );
                }
                break;
            case 'multiple':
                if ( !is_bool( $val ) )
                {
                    throw new ezcBaseValueException( $key, $val, 'bool' );
                }
                break;
            case 'shorthelp':
                if ( !is_string( $val ) )
                {
                    throw new ezcBaseValueException( $key, $val, 'string' );
                }
                break;
            case 'longhelp':
                if ( !is_string( $val ) )
                {
                    throw new ezcBaseValueException( $key, $val, 'string' );
                }
                break;
            case 'arguments':
                if ( !is_bool( $val ) )
                {
                    throw new ezcBaseValueException( $key, $val, 'bool' );
                }
                break;
            case 'mandatory':
                if ( !is_bool( $val ) )
                {
                    throw new ezcBaseValueException( $key, $val, 'bool' );
                }
                break;
            case 'isHelpOption':
                if ( !is_bool( $val ) )
                {
                    throw new ezcBaseValueException( $key, $val, 'bool' );
                }
                break;
            case 'long':
            case 'short':
                throw new ezcBasePropertyPermissionException( $key, ezcBasePropertyPermissionException::READ );
                break;
            default:
                throw new ezcBasePropertyNotFoundException( $key );
                break;
        }
        $this->properties[$key] = $val;
    }
 
    /**
     * Property isset access.
     * 
     * @param string $key Name of the property.
     * @return bool True is the property is set, otherwise false.
     * @ignore
     */
    public function __isset( $key )
    {
        switch ( $key  )
        {
            case 'short':
            case 'long':
            case 'type':
            case 'default':
            case 'multiple':
            case 'shorthelp':
            case 'longhelp':
            case 'arguments':
            case 'isHelpOption':
            case 'mandatory':
                return ( $this->properties[$key] !== null );
        }
        return false;
    }

    /**
     * Returns if a given name if valid for use as a parameter name a parameter. 
     * Checks if a given parameter name is generally valid for use. It checks a)
     * that the name does not start with '-' or '--' and b) if it contains
     * whitespaces. Note, that this method does not check any conflicts with already
     * used parameter names.
     * 
     * @param string $name The name to check.
     * @return bool True if the name is valid, otherwise false.
     */
    public static function validateOptionName( $name )
    {
        if ( substr( $name, 0, 1 ) === '-' || strpos( $name, ' ' ) !== false )
        {
            return false;
        }
        return true;
    }
}

?>

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