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## com.sun.jersey.core.header
Class GrammarUtil

    java.lang.Object
      com.sun.jersey.core.header.GrammarUtil

    public final class GrammarUtil

extends java.lang.Object

Class containing static utility methods to work with HTTP headers.

Author:
  Paul Sandoz, Martin Matula

Field Summary
`static int` | `COMMENT` Represents comment type in the TYPE_TABLE
`static int` | `CONTROL` Represents control type in the TYPE_TABLE
`static boolean[]` | `IS_TOKEN` convenience table mapping chars to true if they are tokens
`static boolean[]` | `IS_WHITE_SPACE` Convenience table mapping chars to true if they are white space chars
`static int` | `QUOTED_STRING` Represents quotes type in the TYPE_TABLE
`static int` | `SEPARATOR` Represents separator type in the TYPE_TABLE
`static char[]` | `SEPARATORS` Array of chars representing separators
`static int` | `TOKEN` Represents token type in the TYPE_TABLE
`static int[]` | `TYPE_TABLE` Mapping of chars to types
`static char[]` | `WHITE_SPACE` Array of chars representing white spaces

Constructor Summary
`GrammarUtil()`

Method Summary
`static boolean` | `containsWhiteSpace(java.lang.String s)` Returns true if string s contains a white space char.
`static java.lang.String` | `filterToken(java.lang.String s, int start, int end)`
`static java.lang.String` | `filterToken(java.lang.String s, int start, int end, boolean preserveBackslash)`
`static boolean` | `isToken(char c)` Returns true if the provided char is a token.
`static boolean` | `isTokenString(java.lang.String s)` Returns true if all chars in string s are tokens.
`static boolean` | `isWhiteSpace(char c)` Returns true if the provided char is a white space.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### TOKEN

    public static final int TOKEN

  Represents token type in the TYPE_TABLE

  See Also:
    Constant Field Values

### QUOTED_STRING

    public static final int QUOTED_STRING

  Represents quotes type in the TYPE_TABLE

  See Also:
    Constant Field Values

### COMMENT

    public static final int COMMENT

  Represents comment type in the TYPE_TABLE

  See Also:
    Constant Field Values

### SEPARATOR

    public static final int SEPARATOR

  Represents separator type in the TYPE_TABLE

  See Also:
    Constant Field Values

### CONTROL

    public static final int CONTROL

  Represents control type in the TYPE_TABLE

  See Also:
    Constant Field Values

### WHITE_SPACE

    public static final char[] WHITE_SPACE

  Array of chars representing white spaces

### SEPARATORS

    public static final char[] SEPARATORS

  Array of chars representing separators

### TYPE_TABLE

    public static final int[] TYPE_TABLE

  Mapping of chars to types

### IS_WHITE_SPACE

    public static final boolean[] IS_WHITE_SPACE

  Convenience table mapping chars to true if they are white space chars

### IS_TOKEN

    public static final boolean[] IS_TOKEN

  convenience table mapping chars to true if they are tokens

Constructor Detail

### GrammarUtil

    public GrammarUtil()

Method Detail

### isWhiteSpace

    public static boolean isWhiteSpace(char c)

  Returns true if the provided char is a white space.

  Parameters:
    `c` - char to check
  Returns:
    true if c is a white space

### isToken

    public static boolean isToken(char c)

  Returns true if the provided char is a token.

  Parameters:
    `c` - char to check
  Returns:
    true if c is a token

### isTokenString

    public static boolean isTokenString(java.lang.String s)

  Returns true if all chars in string s are tokens.

  Parameters:
    `s` - string to check for tokens
  Returns:
    true if all chars in s are tokens

### containsWhiteSpace

    public static boolean containsWhiteSpace(java.lang.String s)

  Returns true if string s contains a white space char.

  Parameters:
    `s` - string to check for white spaces
  Returns:
    true if s contains white spaces

### filterToken

    public static java.lang.String filterToken(java.lang.String s,
                                               int start,
                                               int end)

### filterToken

    public static java.lang.String filterToken(java.lang.String s,
                                               int start,
                                               int end,
                                               boolean preserveBackslash)

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