ix.util.match
Class Matcher

java.lang.Object
  ix.util.match.Matcher

public final class Matcher
extends java.lang.Object

A less simple pattern-matcher.

Field Summary

static MatchEnv	emptyEnv emptyEnv is used to return non-null without allocating an env.
static Symbol	ITEM_WILD
static Symbol	REST

Constructor Summary

Matcher()

Method Summary

static java.lang.Object	deref(Variable var, MatchEnv env)
static MatchEnv	match(java.lang.Object pat, java.lang.Object dat) Match tries to match a pattern against an object.
static MatchEnv	match(java.lang.Object pat, java.lang.Object dat, MatchEnv env)
static MatchEnv	mustMatch(java.lang.Object pat, java.lang.Object dat)
static MatchEnv	mustMatch(java.lang.Object pat, java.lang.Object dat, MatchEnv env)

Methods inherited from class java.lang.Object

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

Field Detail

emptyEnv

public static final MatchEnv emptyEnv

emptyEnv is used to return non-null without allocating an env.

REST

public static final Symbol REST

ITEM_WILD

public static final Symbol ITEM_WILD

Constructor Detail

Matcher

public Matcher()

Method Detail

mustMatch

public static final MatchEnv mustMatch(java.lang.Object pat,
                                       java.lang.Object dat)

mustMatch

public static final MatchEnv mustMatch(java.lang.Object pat,
                                       java.lang.Object dat,
                                       MatchEnv env)

match

public static final MatchEnv match(java.lang.Object pat,
                                   java.lang.Object dat)

Match tries to match a pattern against an object.

Tries to handle Variables as well as ItemVars.

See Also:

SimpleMatcher, MatchEnv, ItemVar, Variable

match

public static final MatchEnv match(java.lang.Object pat,
                                   java.lang.Object dat,
                                   MatchEnv env)

deref

public static final java.lang.Object deref(Variable var,
                                           MatchEnv env)