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## com.singularsys.jep.configurableparser.matchers
Class IdentifierTokenMatcher

    java.lang.Object
      com.singularsys.jep.configurableparser.matchers.RegExpTokenMatcher
          com.singularsys.jep.configurableparser.matchers.IdentifierTokenMatcher

All Implemented Interfaces:
  TokenBuilder, TokenMatcher

    public class IdentifierTokenMatcher

extends RegExpTokenMatcher

Matches identifiers: variables or function names.

Constructor Summary
`IdentifierTokenMatcher(java.util.regex.Pattern pattern)`
`IdentifierTokenMatcher(java.lang.String regex)` Construct and identifier matcher.

Method Summary
`static IdentifierTokenMatcher` | `basicIndetifierMatcher()` Matches identifiers which start with a letter or underscore and are followed by 0 or more letters digits or underscores.
`Token` | `buildToken(java.lang.String s)` Create the token, if the name matches a function name return a FunctionToken otherwise return an IdentifierToken.
`static IdentifierTokenMatcher` | `dottedIndetifierMatcher()` Matches identifiers which start with a letter or underscore and are followed by 0 or more letters digits or underscores or . characters.
`void` | `init(Jep j)` Initialize the matcher when the Jep instance is known.

Methods inherited from class com.singularsys.jep.configurableparser.matchers.RegExpTokenMatcher
`match`

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

Constructor Detail

### IdentifierTokenMatcher

    public IdentifierTokenMatcher(java.util.regex.Pattern pattern)

### IdentifierTokenMatcher

    public IdentifierTokenMatcher(java.lang.String regex)

  Construct and identifier matcher.

  Parameters:
    `regex` - a regular expression specifying the allowed identifier names.
  See Also:
    `Pattern`

Method Detail

### buildToken

    public Token buildToken(java.lang.String s)

  Create the token, if the name matches a function name return a FunctionToken otherwise return an IdentifierToken.

  Specified by:
    `buildToken` in interface `TokenBuilder`
  Specified by:
    `buildToken` in class `RegExpTokenMatcher`
  Parameters:
    `s` - String representing the completed matched token
  Returns:
    the appropriate type of token.

### basicIndetifierMatcher

    public static IdentifierTokenMatcher basicIndetifierMatcher()

  Matches identifiers which start with a letter or underscore and are followed by 0 or more letters digits or underscores.

### dottedIndetifierMatcher

    public static IdentifierTokenMatcher dottedIndetifierMatcher()

  Matches identifiers which start with a letter or underscore and are followed by 0 or more letters digits or underscores or . characters.

### init

    public void init(Jep j)

  Description copied from interface: `TokenMatcher`
  Initialize the matcher when the Jep instance is known.

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Copyright © 2007 Singular Systems http://www.singularsys.com/jep