Class RegExpTree

Method Details

• simplify

  public abstract RegExpTree simplify(String flags)

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

  Parameters:

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

• isCaseSensitive

  public abstract boolean isCaseSensitive()

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

• containsAnchor

  public abstract boolean containsAnchor()

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

• hasCapturingGroup

  public final boolean hasCapturingGroup()

  True if the regular expression contains capturing groups.

• numCapturingGroups

  public abstract int numCapturingGroups()

  The number of capturing groups.

• children

  public abstract List<? extends RegExpTree> children()

  The children of this node.

• appendSourceCode

  protected abstract void appendSourceCode(StringBuilder sb)

  Appends this regular expression source to the given buffer.

• appendDebugInfo

  protected abstract void appendDebugInfo(StringBuilder sb)

• toString

  public final String toString()

  Overrides:

  toString in class Object

• toDebugString

  public final String toDebugString()

• equals

  public abstract boolean equals(Object o)

  Overrides:

  equals in class Object

• hashCode

  public abstract int hashCode()

  Overrides:

  hashCode in class Object

• parseRegExp

  public static RegExpTree parseRegExp(String pattern, String flags)

  Parses a regular expression to an AST.

  Parameters:

  pattern - The foo From /foo/i.

  flags - The i From /foo/i.

• matchesWholeInput

  public static boolean matchesWholeInput(RegExpTree t, String flags)

  True if, but not necessarily always when the, given regular expression must match the whole input or none of it.