ilAssLacExpressionManufacturer Class Reference

Class ExpressionManufacturer. More...

Inheritance diagram for ilAssLacExpressionManufacturer:

Collaboration diagram for ilAssLacExpressionManufacturer:

Public Member Functions
	manufacture ($attribute)
	/** Create a new specific Composite object which is representing the delivered Attribute More...
	getPattern ()
	This function create a regular expression to match all expression in a condition. More...
Public Member Functions inherited from ilAssLacAbstractManufacturer
	match ($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 Protected Attributes
static	$instance = null

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

Detailed Description

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 12 of file ilAssLacExpressionManufacturer.php.

Constructor & Destructor Documentation

__construct()

ilAssLacExpressionManufacturer::__construct ( )

private

Private constructor to prevent creating of an object of ExpressionManufacturer.

Definition at line 135 of file ilAssLacExpressionManufacturer.php.

    {
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacAnswerOfQuestionExpression.php";
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacAnswerOfCurrentQuestionExpression.php";
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacResultOfAnswerOfQuestionExpression.php";
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacResultOfAnswerOfCurrentQuestionExpression.php";
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacPercentageResultExpression.php";
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacNumberOfResultExpression.php";
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacNumericResultExpression.php";
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacStringResultExpression.php";
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacMatchingResultExpression.php";
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacOrderingResultExpression.php";
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacExclusiveResultExpression.php";
        require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacEmptyAnswerExpression.php";
        require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Exception/ilAssLacUnsupportedExpression.php';
    }

Member Function Documentation

__clone()

ilAssLacExpressionManufacturer::__clone ( )

private

Private clone to prevent cloning an object of ExpressionManufacturer.

Definition at line 155 of file ilAssLacExpressionManufacturer.php.

    {
    }

_getInstance()

static ilAssLacExpressionManufacturer::_getInstance ( )

static

Get an Instance of ExpressionManufacturer.

Returns

ilAssLacExpressionManufacturer

Implements ilAssLacManufacturerInterface.

Definition at line 30 of file ilAssLacExpressionManufacturer.php.

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

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

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 113 of file ilAssLacExpressionManufacturer.php.

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

    {
        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) .
            "/";
    }

manufacture()

ilAssLacExpressionManufacturer::manufacture

(

$attribute

)

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

Parameters

string

$attribute

Returns

ilAssLacAbstractComposite|ilAssLacAnswerOfQuestionExpression|ilAssLacAnswerOfCurrentQuestionExpression|ilAssLacNumberOfResultExpression|ilAssLacNumericResultExpression|ilAssLacPercentageResultExpression|ilAssLacResultOfAnswerOfQuestionExpression|ilAssLacResultOfAnswerOfCurrentQuestionExpression|ilAssLacStringResultExpression

Exceptions

ilAssLacUnsupportedExpression

Implements ilAssLacManufacturerInterface.

Definition at line 47 of file ilAssLacExpressionManufacturer.php.

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

    {
        $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;
    }

Field Documentation

$instance

ilAssLacExpressionManufacturer::$instance = null

staticprotected

Definition at line 23 of file ilAssLacExpressionManufacturer.php.

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

• Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Factory/ilAssLacExpressionManufacturer.php