java.lang.Object
- java.lang.Enum<Extension>
- - org.matheclipse.core.io.Extension

All Implemented Interfaces:

Serializable, Comparable<Extension>
```
public enum Extension
extends Enum<Extension>
```
File extensions format.
See Symja's Import() and Export() functions.

Enum Constant Summary

Enum Constants
Enum Constant	Description
`BMP`	uncompressed loss-less image format, no alpha channel
`CSV`	table
`DAT`	Data
`DOT`	graph (theory) format
`EXPRESSIONJSON`	ExpressionJSON
`GIF`	animation format
`GRAPHML`	graph (theory) format
`GZ`	compressed version of another format, for instance csv.gz
`JPEG`	compressed, lossy image format
`JSON`	JSON
`M`	MATLAB m file
`PNG`	compressed image format with alpha channel
`RAWJSON`	RawJSON
`STRING`	text format
`TABLE`	table format
`TSV`	Tab-Separated Values
`TXT`	plain text format
`WXF`	WXF format

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static Extension`	`exportExtension(String extensionString)`	Determine `Extension` format from the extension string.
`static Extension`	`exportFilename(String filename)`	Determine `Extension` format from the filename's extension.
`static Extension`	`importExtension(String extensionString)`	Determine `Extension` format from the extension string.
`static Extension`	`importFilename(String filename)`	Determine `Extension` format from the filename's extension.
`static boolean`	`isAllowedExtension(String extensionString)`
`static Extension`	`of(String string)`
`static Extension`	`valueOf(String name)`	Returns the enum constant of this type with the specified name.
`static Extension[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - BMP
```
public static final Extension BMP
```
    uncompressed loss-less image format, no alpha channel
  - CSV
```
public static final Extension CSV
```
    table
  - DAT
```
public static final Extension DAT
```
    Data
  - DOT
```
public static final Extension DOT
```
    graph (theory) format
  - EXPRESSIONJSON
```
public static final Extension EXPRESSIONJSON
```
    ExpressionJSON
  - GIF
```
public static final Extension GIF
```
    animation format
  - GRAPHML
```
public static final Extension GRAPHML
```
    graph (theory) format
  - GZ
```
public static final Extension GZ
```
    compressed version of another format, for instance csv.gz
  - JPEG
```
public static final Extension JPEG
```
    compressed, lossy image format
  - JSON
```
public static final Extension JSON
```
    JSON
  - M
```
public static final Extension M
```
    MATLAB m file
  - PNG
```
public static final Extension PNG
```
    compressed image format with alpha channel
  - RAWJSON
```
public static final Extension RAWJSON
```
    RawJSON
  - STRING
```
public static final Extension STRING
```
    text format
  - TABLE
```
public static final Extension TABLE
```
    table format
  - TSV
```
public static final Extension TSV
```
    Tab-Separated Values
  - TXT
```
public static final Extension TXT
```
    plain text format
  - WXF
```
public static final Extension WXF
```
    WXF format
- Method Detail
  - values
```
public static Extension[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
    for (Extension c : Extension.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static Extension valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - isAllowedExtension
```
public static boolean isAllowedExtension(String extensionString)
```
  - exportFilename
```
public static Extension exportFilename(String filename)
```
    Determine Extension format from the filename's extension. If no Extension can be determined return DAT.
    
    Parameters:
    
    filename -
    
    Returns:
  - exportExtension
```
public static Extension exportExtension(String extensionString)
```
    Determine Extension format from the extension string. If no Extension can be determined return DAT.
    
    Parameters:
    
    extensionString -
    
    Returns:
  - importFilename
```
public static Extension importFilename(String filename)
```
    Determine Extension format from the filename's extension. If no Extension can be determined return STRING.
    
    Parameters:
    
    filename -
    
    Returns:
  - importExtension
```
public static Extension importExtension(String extensionString)
```
    Determine Extension format from the extension string. If no Extension can be determined return STRING.
    
    Parameters:
    
    extensionString -
    
    Returns:
  - of
```
public static Extension of(String string)
```
    Parameters:
    
    string -
    
    Returns:
    
    Throws:
    
    IllegalArgumentException - if given string does not match any known file types

Enum Extension

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

BMP

CSV

DAT

DOT

EXPRESSIONJSON

GIF

GRAPHML

GZ

JPEG

JSON

M

PNG

RAWJSON

STRING

TABLE

TSV

TXT

WXF

Method Detail

values

valueOf

isAllowedExtension

exportFilename

exportExtension

importFilename

importExtension

of