com.google.javascript.jscomp.regex

Class RegExpTree.LookaheadAssertion

java.lang.Object

com.google.javascript.jscomp.regex.RegExpTree

com.google.javascript.jscomp.regex.RegExpTree.LookaheadAssertion

Enclosing class:

RegExpTree

public static final class RegExpTree.LookaheadAssertion
extends RegExpTree

Represents a lookahead assertion such as (?=...) or (?!...)

Nested Class Summary

Nested classes/interfaces inherited from class com.google.javascript.jscomp.regex.RegExpTree

RegExpTree.Alternation, RegExpTree.Anchor, RegExpTree.BackReference, RegExpTree.CapturingGroup, RegExpTree.Charset, RegExpTree.Concatenation, RegExpTree.Empty, RegExpTree.LookaheadAssertion, RegExpTree.LookbehindAssertion, RegExpTree.NamedBackReference, RegExpTree.NamedCaptureGroup, RegExpTree.RegExpTreeAtom, RegExpTree.Repetition, RegExpTree.Text, RegExpTree.UnicodePropertyEscape, RegExpTree.WordBoundary

Method Summary

Modifier and Type	Method and Description
protected void	appendDebugInfo(java.lang.StringBuilder sb)
protected void	appendSourceCode(java.lang.StringBuilder sb) Appends this regular expression source to the given buffer.
com.google.common.collect.ImmutableList<? extends RegExpTree>	children() The children of this node.
boolean	containsAnchor() True if the regular expression contains an anchor : ^ or $.
boolean	equals(java.lang.Object o)
int	hashCode()
boolean	isCaseSensitive() True if the presence or absence of an "i" flag would change the meaning of this regular expression.
int	numCapturingGroups() The number of capturing groups.
RegExpTree	simplify(java.lang.String flags) Returns a simpler regular expression that is semantically the same assuming the given flags.

Methods inherited from class com.google.javascript.jscomp.regex.RegExpTree

hasCapturingGroup, matchesWholeInput, parseRegExp, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

simplify

public RegExpTree simplify(java.lang.String flags)

Description copied from class: RegExpTree

Returns a simpler regular expression that is semantically the same assuming the given flags.

Specified by:

simplify in class RegExpTree

Parameters:

flags - Regular expression flags, e.g. "igm".

isCaseSensitive

public boolean isCaseSensitive()

Description copied from class: RegExpTree

True if the presence or absence of an "i" flag would change the meaning of this regular expression.

Specified by:

isCaseSensitive in class RegExpTree

containsAnchor

public boolean containsAnchor()

Description copied from class: RegExpTree

True if the regular expression contains an anchor : ^ or $.

Specified by:

containsAnchor in class RegExpTree

numCapturingGroups

public int numCapturingGroups()

Description copied from class: RegExpTree

The number of capturing groups.

Specified by:

numCapturingGroups in class RegExpTree

children

public com.google.common.collect.ImmutableList<? extends RegExpTree> children()

Description copied from class: RegExpTree

The children of this node.

Specified by:

children in class RegExpTree

appendSourceCode

protected void appendSourceCode(java.lang.StringBuilder sb)

Description copied from class: RegExpTree

Appends this regular expression source to the given buffer.

Specified by:

appendSourceCode in class RegExpTree

appendDebugInfo

protected void appendDebugInfo(java.lang.StringBuilder sb)

Specified by:

appendDebugInfo in class RegExpTree

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in class RegExpTree

hashCode

public int hashCode()

Specified by:

hashCode in class RegExpTree