ilAssLacExpressionManufacturer Class Reference

This file is part of ILIAS, a powerful learning management system published by ILIAS open source e-Learning e.V. More...

Inheritance diagram for ilAssLacExpressionManufacturer:

Collaboration diagram for ilAssLacExpressionManufacturer:

Public Member Functions
	manufacture (string $attribute)
	/** Create a new specific Composite object which is representing the delivered Attribute More...
	getPattern ()
	This function create a regular expression to match all expression in a condition. More...
Public Member Functions inherited from ilAssLacAbstractManufacturer
	match (string $subject)
	Matches a delivered string with a the pattern returned by getPattern implemented in the explicit Manufacturer. More...
	manufacture (string $attribute)
	Create a new specific Composite object which is representing the delivered Attribute. More...
	getPattern ()
	match (string $subject)
	Matches a delivered string with a the pattern returned by getPattern implemented in the explicit Manufacturer. More...

Static Public Member Functions
static	_getInstance ()
	Get an Instance of ExpressionManufacturer. More...
static	_getInstance ()
	Get an singleton of the manufacturer. More...

Static Protected Attributes
static	$instance = null

Private Member Functions
	__clone ()
	Private clone to prevent cloning an object of ExpressionManufacturer. More...

Detailed Description

This file is part of ILIAS, a powerful learning management system published by ILIAS open source e-Learning e.V.

ILIAS is licensed with the GPL-3.0, see https://www.gnu.org/licenses/gpl-3.0.en.html You should have received a copy of said license along with the source code, too.

If this is not the case or you just want to try ILIAS, you'll find us at: https://www.ilias.de https://github.com/ILIAS-eLearning Class ExpressionManufacturer

Date: 25.03.13 Time: 15:12

Author

Thomas Joußen tjous.nosp@m.sen@.nosp@m.datab.nosp@m.ay.d.nosp@m.e

Definition at line 26 of file ilAssLacExpressionManufacturer.php.

Member Function Documentation

__clone()

ilAssLacExpressionManufacturer::__clone ( )

private

Private clone to prevent cloning an object of ExpressionManufacturer.

Definition at line 146 of file ilAssLacExpressionManufacturer.php.

    {
    }

_getInstance()

static ilAssLacExpressionManufacturer::_getInstance ( )

static

Get an Instance of ExpressionManufacturer.

Returns

ilAssLacExpressionManufacturer

Implements ilAssLacManufacturerInterface.

Definition at line 43 of file ilAssLacExpressionManufacturer.php.

                                         : ?ilAssLacExpressionManufacturer
    {
        if (self::$instance == null) {
            self::$instance = new ilAssLacExpressionManufacturer();
        }
        return self::$instance;
    }

References $instance.

Referenced by ilAssLacConditionParser\cannonicalizeCondition(), ilAssLacConditionParser\fetchExpressions(), and ilAssLacCompositeBuilder\getExpression().

Here is the caller graph for this function:

getPattern()

ilAssLacExpressionManufacturer::getPattern

(

)

This function create a regular expression to match all expression in a condition.

The following string is created by this function '/%[0-9]+%|#[0-9]+#|+[0-9]++|Q[0-9]+([^[|0-9]|$)|Q[0-9]+[[0-9]+]|~.*?~'
It matches all expression in a condition and is divided into the following parts:

Qn        /Q[0-9]+(?!\[)/
Qn[m]     /Q[0-9]+\[[0-9]+\]/
n%       /%[0-9]+%/
+n+       /\+[0-9]+\+/
#n#       /#[0-9]+#/
~TEXT~    /~.*?~/                               Hier gibt es noch Probleme, wenn im Text ein ~ enthalten ist

Returns

string

Implements ilAssLacManufacturerInterface.

Definition at line 124 of file ilAssLacExpressionManufacturer.php.

                                : string
    {
        return
            "/" .
            substr(ilAssLacPercentageResultExpression::$pattern, 1, strlen(ilAssLacPercentageResultExpression::$pattern) - 2) . "|" .
            substr(ilAssLacNumericResultExpression::$pattern, 1, strlen(ilAssLacNumericResultExpression::$pattern) - 2) . "|" .
            substr(ilAssLacNumberOfResultExpression::$pattern, 1, strlen(ilAssLacNumberOfResultExpression::$pattern) - 2) . "|" .
            substr(ilAssLacAnswerOfQuestionExpression::$pattern, 1, strlen(ilAssLacAnswerOfQuestionExpression::$pattern) - 2) . "|" .
            substr(ilAssLacAnswerOfCurrentQuestionExpression::$pattern, 1, strlen(ilAssLacAnswerOfCurrentQuestionExpression::$pattern) - 2) . "|" .
            substr(ilAssLacResultOfAnswerOfQuestionExpression::$pattern, 1, strlen(ilAssLacResultOfAnswerOfQuestionExpression::$pattern) - 2) . "|" .
            substr(ilAssLacResultOfAnswerOfCurrentQuestionExpression::$pattern, 1, strlen(ilAssLacResultOfAnswerOfCurrentQuestionExpression::$pattern) - 2) . "|" .
            substr(ilAssLacStringResultExpression::$pattern, 1, strlen(ilAssLacStringResultExpression::$pattern) - 2) . "|" .
            substr(ilAssLacMatchingResultExpression::$pattern, 1, strlen(ilAssLacMatchingResultExpression::$pattern) - 2) . "|" .
            substr(ilAssLacOrderingResultExpression::$pattern, 1, strlen(ilAssLacOrderingResultExpression::$pattern) - 2) . "|" .
            substr(ilAssLacExclusiveResultExpression::$pattern, 1, strlen(ilAssLacExclusiveResultExpression::$pattern) - 2) . "|" .
            substr(ilAssLacEmptyAnswerExpression::$pattern, 1, strlen(ilAssLacEmptyAnswerExpression::$pattern) - 2) .
            "/";
    }

References ilAssLacAnswerOfCurrentQuestionExpression\$pattern, ilAssLacAnswerOfQuestionExpression\$pattern, ilAssLacEmptyAnswerExpression\$pattern, ilAssLacExclusiveResultExpression\$pattern, ilAssLacMatchingResultExpression\$pattern, ilAssLacNumberOfResultExpression\$pattern, ilAssLacNumericResultExpression\$pattern, ilAssLacOrderingResultExpression\$pattern, ilAssLacPercentageResultExpression\$pattern, ilAssLacResultOfAnswerOfCurrentQuestionExpression\$pattern, ilAssLacResultOfAnswerOfQuestionExpression\$pattern, and ilAssLacStringResultExpression\$pattern.

manufacture()

ilAssLacExpressionManufacturer::manufacture

(

string

$attribute

)

/** Create a new specific Composite object which is representing the delivered Attribute

Parameters

string

$attribute

Returns

ilAssLacAbstractComposite

Exceptions

ilAssLacUnsupportedExpression

Implements ilAssLacManufacturerInterface.

Definition at line 58 of file ilAssLacExpressionManufacturer.php.

                                                  : ilAssLacAbstractComposite
    {
        $expression = null;
 
        switch (true) {
            case preg_match(ilAssLacResultOfAnswerOfQuestionExpression::$pattern, $attribute):
                $expression = new ilAssLacResultOfAnswerOfQuestionExpression();
                break;
            case preg_match(ilAssLacResultOfAnswerOfCurrentQuestionExpression::$pattern, $attribute):
                $expression = new ilAssLacResultOfAnswerOfCurrentQuestionExpression();
                break;
            case preg_match(ilAssLacAnswerOfQuestionExpression::$pattern, $attribute):
                $expression = new ilAssLacAnswerOfQuestionExpression();
                break;
            case preg_match(ilAssLacAnswerOfCurrentQuestionExpression::$pattern, $attribute):
                $expression = new ilAssLacAnswerOfCurrentQuestionExpression();
                break;
            case preg_match(ilAssLacPercentageResultExpression::$pattern, $attribute):
                $expression = new ilAssLacPercentageResultExpression();
                break;
            case preg_match(ilAssLacNumberOfResultExpression::$pattern, $attribute):
                $expression = new ilAssLacNumberOfResultExpression();
                break;
            case preg_match(ilAssLacNumericResultExpression::$pattern, $attribute):
                $expression = new ilAssLacNumericResultExpression();
                break;
            case preg_match(ilAssLacStringResultExpression::$pattern, $attribute):
                $expression = new ilAssLacStringResultExpression();
                break;
            case preg_match(ilAssLacMatchingResultExpression::$pattern, $attribute):
                $expression = new ilAssLacMatchingResultExpression();
                break;
            case preg_match(ilAssLacOrderingResultExpression::$pattern, $attribute):
                $expression = new ilAssLacOrderingResultExpression();
                break;
            case preg_match(ilAssLacExclusiveResultExpression::$pattern, $attribute):
                $expression = new ilAssLacExclusiveResultExpression();
                break;
            case preg_match(ilAssLacEmptyAnswerExpression::$pattern, $attribute):
                $expression = new ilAssLacEmptyAnswerExpression();
                break;
            default:
                throw new ilAssLacUnsupportedExpression($attribute);
                break;
        }
 
        $expression->parseValue($attribute);
        return $expression;
    }

References ilAssLacAnswerOfCurrentQuestionExpression\$pattern, ilAssLacAnswerOfQuestionExpression\$pattern, ilAssLacEmptyAnswerExpression\$pattern, ilAssLacExclusiveResultExpression\$pattern, ilAssLacMatchingResultExpression\$pattern, ilAssLacNumberOfResultExpression\$pattern, ilAssLacNumericResultExpression\$pattern, ilAssLacOrderingResultExpression\$pattern, ilAssLacPercentageResultExpression\$pattern, ilAssLacResultOfAnswerOfCurrentQuestionExpression\$pattern, ilAssLacResultOfAnswerOfQuestionExpression\$pattern, and ilAssLacStringResultExpression\$pattern.

Field Documentation

$instance

ilAssLacExpressionManufacturer::$instance = null

staticprotected

Definition at line 36 of file ilAssLacExpressionManufacturer.php.

Referenced by _getInstance().

---

The documentation for this class was generated from the following file:

• components/ILIAS/TestQuestionPool/classes/questions/LogicalAnswerCompare/Factory/ilAssLacExpressionManufacturer.php