com.singularsys.jep.configurableparser.matchers
Class StringTokenMatcher2

java.lang.Object
  com.singularsys.jep.configurableparser.matchers.StringTokenMatcher2

All Implemented Interfaces:

TokenMatcher, java.io.Serializable

public class StringTokenMatcher2
extends java.lang.Object
implements TokenMatcher

Base class for matching quoted strings. This class allows escape characters like \n inside the string, As well as unicode ? and latin \007 escape sequences. Unlike StringTokenMatcher a hand built pattern matcher is used rather than regular expressions.

See Also:

Serialized Form

Constructor Summary

StringTokenMatcher2(char delim, boolean incQuotes)
Construct a string matcher.

Method Summary

static StringTokenMatcher2	doubleQuoteStringMatcher() Factory for matching single line double quoted strings.
void	init(Jep j) Initialize the matcher when the Jep instance is known.
Token	match(java.lang.String s) Attempts to match the start of the string.
static StringTokenMatcher2	singleQuoteStringMatcher() Factory for matching single line single quoted strings.
static StringTokenMatcher2	singleQuoteStringMatcher(boolean incQuotes) Factory for matching single line single quoted strings.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StringTokenMatcher2

public StringTokenMatcher2(char delim,
                           boolean incQuotes)

Construct a string matcher.

Parameters:

delim - The delimiter character typically " or ' or `.

incQuotes - whether the quote character should be included.

Method Detail

match

public Token match(java.lang.String s)
            throws ParseException

Description copied from interface: TokenMatcher

Attempts to match the start of the string. Note new objects should be created each time as error reporting information is later attached to tokens.

Specified by:

match in interface TokenMatcher

Parameters:

s - the string to match against

Returns:

if successful returns the corresponding token, return null if failed to match

Throws:

ParseException

doubleQuoteStringMatcher

public static StringTokenMatcher2 doubleQuoteStringMatcher()

Factory for matching single line double quoted strings.

singleQuoteStringMatcher

public static StringTokenMatcher2 singleQuoteStringMatcher()

Factory for matching single line single quoted strings.

singleQuoteStringMatcher

public static StringTokenMatcher2 singleQuoteStringMatcher(boolean incQuotes)

Factory for matching single line single quoted strings.

Parameters:

incQuotes - whether the quote character should be returned to the parser.

init

public void init(Jep j)

Description copied from interface: TokenMatcher

Initialize the matcher when the Jep instance is known.

Specified by:

init in interface TokenMatcher