convert/record - Maple Programming Help

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convert/record

convert an expression to a record

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

convert( e, 'record' )

Parameters

e

-

expression

Description

• 

The calling sequence convert( e, 'record' ) converts the expression e to a record.

• 

The input expression e must be a module without local variables, a list of equations whose left-hand sides are symbols, or a table all of whose indices are symbols. No other expression may be converted to a record.

  

Note: If the input expression e is a record, then it is returned unchanged.

• 

If the input expression e is a module, then it must not have non-exported local variables to be converted to a record. The resulting record has the names of the module exports as slot names, and their assigned values (if any) as the corresponding slot values.

• 

A list of equations of the form [name1=value1,name2=value2,...,namek=valuek] may be converted to a record. Each left-hand side namei must be a symbol. In this case, the resulting record is precisely the one that would be obtained by calling the Record constructor with the given equations as arguments.

• 

If the input expression e is a table, then every one among its indices must be a symbol. The resulting record has the table indices as slot names, and the corresponding tabular values as the record slot values.

Examples

rRecorda=1,b=2

rRecorda=1,b=2

(1)

typer,'record'

true

(2)

convertr,'record'

Recorda=1,b=2

(3)

mmoduleexporta,b;a1;b2end module:

convertm,'record'

Recorda=1,b=2

(4)

mmodulelocalu;exporta,b;a1;b2;u3end module:

Attempting to convert a module with a local variable to a record results in an error.

convertm,'record'

Error, (in `convert/record`) cannot convert a module with locals to a record

converta=1,b=2,'record'

Recorda=1,b=2

(5)

converttablea=1,b=2,'record'

Recorda=1,b=2

(6)

See Also

Record

type/record

 


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