com.oracle.truffle.regex

Class RegexEngine

java.lang.Object

com.oracle.truffle.regex.AbstractRegexObject

com.oracle.truffle.regex.AbstractConstantKeysObject

com.oracle.truffle.regex.RegexEngine

All Implemented Interfaces:

com.oracle.truffle.api.interop.TruffleObject

Direct Known Subclasses:

CachingRegexEngine

public class RegexEngine
extends AbstractConstantKeysObject

RegexEngine is an executable TruffleObject that compiles regular expressions and packages the results in RegexObjects. It takes the following arguments:

1. String pattern: the source of the regular expression to be compiled
2. String flags (optional): a textual representation of the flags to be passed to the compiler (one letter per flag), see RegexFlags for the supported flags

Executing the RegexEngine can also lead to the following exceptions:

• RegexSyntaxException: if the input regular expression is malformed
• UnsupportedRegexException: if the input regular expression cannot be compiled by this engine

A RegexEngine can be obtained by executing the RegexEngineBuilder.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RegexEngine.ValidateMethod

Nested classes/interfaces inherited from class com.oracle.truffle.regex.AbstractConstantKeysObject

AbstractConstantKeysObject.IsReadableCacheNode, AbstractConstantKeysObject.ReadCacheNode

Constructor Summary

Constructors

Constructor and Description
RegexEngine(RegexCompiler compiler, RegexOptions options)

Method Summary

Modifier and Type	Method and Description
RegexObject	compile(RegexSource regexSource)
TruffleReadOnlyKeysArray	getKeys()
boolean	isExecutable()
Object	readMemberImpl(String symbol)

Methods inherited from class com.oracle.truffle.regex.AbstractConstantKeysObject

getMembers, hasMembers, isMemberReadable, readMember

Methods inherited from class com.oracle.truffle.regex.AbstractRegexObject

getLanguage, hasLanguage, toDisplayString

Methods inherited from class java.lang.Object

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

Constructor Detail

RegexEngine

public RegexEngine(RegexCompiler compiler,
                   RegexOptions options)

Method Detail

compile

public RegexObject compile(RegexSource regexSource)
                    throws RegexSyntaxException,
                           UnsupportedRegexException

Throws:

RegexSyntaxException

UnsupportedRegexException

getKeys

public TruffleReadOnlyKeysArray getKeys()

Specified by:

getKeys in class AbstractConstantKeysObject

readMemberImpl

public Object readMemberImpl(String symbol)
                      throws com.oracle.truffle.api.interop.UnknownIdentifierException

Specified by:

readMemberImpl in class AbstractConstantKeysObject

Throws:

com.oracle.truffle.api.interop.UnknownIdentifierException

isExecutable

public boolean isExecutable()