Package monq.jfa

Class ReClassicParser

java.lang.Object

monq.jfa.ReClassicParser

All Implemented Interfaces:

ReParser

public class ReClassicParser
extends Object
implements ReParser

Implements the regular expression syntax classically used by monq.jfa.

Constructor Summary

Constructors

Constructor	Description
ReClassicParser()
ReClassicParser(CharUnaryOperator chMap)	Creates the parser with the given character map.

Method Summary

Modifier and Type	Method	Description
void	escape(StringBuilder out, CharSequence cin, int startAt)	starting with the character at startAt the given CharSequence is copied to out while all characters with special meaning for this parser are suitably escaped.
CharUnaryOperator	getChMap()
void	parse(NfaBuilder<?> builder, CharSequence s)	Parses regex while building up the automaton in the builder.
String	specialChars()	provides all characters that have a special meaning for this parser

Methods inherited from class java.lang.Object

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

Constructor Details

ReClassicParser

public ReClassicParser()

ReClassicParser

public ReClassicParser(CharUnaryOperator chMap)

Creates the parser with the given character map. The most commonly used mapping is probably Character::toLowerCase.

Parameters:

chMap - to map characters during parsing

Method Details

getChMap

public CharUnaryOperator getChMap()

Specified by:

getChMap in interface ReParser

parse

public void parse(NfaBuilder<?> builder,
 CharSequence s)
           throws ReSyntaxException

Description copied from interface: ReParser

Parses regex while building up the automaton in the builder.

Specified by:

parse in interface ReParser

Throws:

ReSyntaxException

specialChars

public String specialChars()

Description copied from interface: ReParser

provides all characters that have a special meaning for this parser

Specified by:

specialChars in interface ReParser

escape

public void escape(StringBuilder out,
 CharSequence cin,
 int startAt)

Description copied from interface: ReParser

starting with the character at startAt the given CharSequence is copied to out while all characters with special meaning for this parser are suitably escaped. The result can be used as a regular expression that matches exactly the input sequence.

Specified by:

escape in interface ReParser