org.stekikun.dolmen.syntax

Class Regulars.VarsInfo

java.lang.Object

org.stekikun.dolmen.syntax.Regulars.VarsInfo

Enclosing class:

Regulars

public static final class Regulars.VarsInfo
extends Object

Gathers information about the nature of various bindings in a regular expression. This info can be computed by calling Regulars.analyseVars(org.stekikun.dolmen.syntax.Regular).

Author:

Stéphane Lescuyer

Field Summary

Fields

Modifier and Type	Field and Description
Set<String>	allVars All variables bound in the regular expression
Set<String>	chrVars All variables which can match sub-expressions that must be of size 1.
Set<String>	dblVars All variables matched potentially more than once in the regular expression
Set<String>	optVars All variables optionally matched in the regular expression
Set<String>	strVars All variables which can match sub-expressions that are not guaranteed to be of size 1.

Constructor Summary

Constructors

Constructor and Description
VarsInfo(Set<String> allVars, Set<String> optVars, Set<String> dblVars, Set<String> chrVars, Set<String> strVars)

Method Summary

Modifier and Type	Method and Description
Set<String>	getCharVars()

Methods inherited from class java.lang.Object

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

Field Detail

allVars

public final Set<String> allVars

All variables bound in the regular expression

optVars

public final Set<String> optVars

All variables optionally matched in the regular expression

dblVars

public final Set<String> dblVars

All variables matched potentially more than once in the regular expression

chrVars

public final Set<String> chrVars

All variables which can match sub-expressions that must be of size 1.

strVars

public final Set<String> strVars

All variables which can match sub-expressions that are not guaranteed to be of size 1.

Constructor Detail

VarsInfo

public VarsInfo(Set<String> allVars,
                Set<String> optVars,
                Set<String> dblVars,
                Set<String> chrVars,
                Set<String> strVars)

Parameters:

allVars -

optVars -

dblVars -

chrVars -

strVars -

Method Detail

getCharVars

public Set<String> getCharVars()

Returns:

a set of variables which, according to this analysis, are guaranteed to always be matched to a substring of size 1, if matched at all