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-== Keywords
-
-The following keywords are used by Ruby.
-
-__ENCODING__::
-  The script encoding of the current file.  See Encoding.
-
-__LINE__::
-  The line number of this keyword in the current file.
-
-__FILE__::
-  The path to the current file.
-
-BEGIN::
-  Runs before any other code in the current file.  See {miscellaneous
-  syntax}[rdoc-ref:syntax/miscellaneous.rdoc]
-
-END::
-  Runs after any other code in the current file.  See {miscellaneous
-  syntax}[rdoc-ref:syntax/miscellaneous.rdoc]
-
-alias::
-  Creates an alias between two methods (and other things).  See {modules and
-  classes syntax}[rdoc-ref:syntax/modules_and_classes.rdoc]
-
-and::
-  Short-circuit Boolean and with lower precedence than <code>&&</code>
-
-begin::
-  Starts an exception handling block.  See {exceptions
-  syntax}[rdoc-ref:syntax/exceptions.rdoc]
-
-break::
-  Leaves a block early.  See {control expressions
-  syntax}[rdoc-ref:syntax/control_expressions.rdoc]
-
-case::
-  Starts a +case+ expression.  See {control expressions
-  syntax}[rdoc-ref:syntax/control_expressions.rdoc]
-
-class::
-  Creates or opens a class.  See {modules and classes
-  syntax}[rdoc-ref:syntax/modules_and_classes.rdoc]
-
-def::
-  Defines a method.  See {methods syntax}[rdoc-ref:syntax/methods.rdoc]
-
-defined?::
-  Returns a string describing its argument.  See {miscellaneous
-  syntax}[rdoc-ref:syntax/miscellaneous.rdoc]
-
-do::
-  Starts a block.
-
-else::
-  The unhandled condition in +case+, +if+ and +unless+ expressions.  See
-  {control expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-
-elsif::
-  An alternate condition for an +if+ expression.  See {control
-  expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-
-end::
-  The end of a syntax block.  Used by classes, modules, methods, exception
-  handling and control expressions.
-
-ensure::
-  Starts a section of code that is always run when an exception is raised.
-  See {exception handling}[rdoc-ref:syntax/exceptions.rdoc]
-
-false::
-  Boolean false.  See {literals}[rdoc-ref:syntax/literals.rdoc]
-
-for::
-  A loop that is similar to using the +each+ method.  See {control
-  expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-
-if::
-  Used for +if+ and modifier +if+ statements.  See {control
-  expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-
-in::
-  Used to separate the iterable object and iterator variable in a +for+ loop.
-  See {control expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-  It also serves as a pattern in a +case+ expression.
-  See {pattern matching}[rdoc-ref:syntax/pattern_matching.rdoc]
-
-module::
-  Creates or opens a module.  See {modules and classes
-  syntax}[rdoc-ref:syntax/modules_and_classes.rdoc]
-
-next::
-  Skips the rest of the block.  See {control
-  expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-
-nil::
-  A false value usually indicating "no value" or "unknown".  See
-  {literals}[rdoc-ref:syntax/literals.rdoc]
-
-not::
-  Inverts the following boolean expression.  Has a lower precedence than
-  <code>!</code>
-
-or::
-  Boolean or with lower precedence than <code>||</code>
-
-redo::
-  Restarts execution in the current block.  See {control
-  expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-
-rescue::
-  Starts an exception section of code in a +begin+ block.  See {exception
-  handling}[rdoc-ref:syntax/exceptions.rdoc]
-
-retry::
-  Retries an exception block.  See {exception
-  handling}[rdoc-ref:syntax/exceptions.rdoc]
-
-return::
-  Exits a method.  See {methods}[rdoc-ref:syntax/methods.rdoc].
-  If met in top-level scope, immediately stops interpretation of
-  the current file.
-
-self::
-  The object the current method is attached to.  See
-  {methods}[rdoc-ref:syntax/methods.rdoc]
-
-super::
-  Calls the current method in a superclass.  See
-  {methods}[rdoc-ref:syntax/methods.rdoc]
-
-then::
-  Indicates the end of conditional blocks in control structures.  See
-  {control expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-
-true::
-  Boolean true.  See {literals}[rdoc-ref:syntax/literals.rdoc]
-
-undef::
-  Prevents a class or module from responding to a method call.
-  See {modules and classes}[rdoc-ref:syntax/modules_and_classes.rdoc]
-
-unless::
-  Used for +unless+ and modifier +unless+ statements.  See {control
-  expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-
-until::
-  Creates a loop that executes until the condition is true.  See
-  {control expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-
-when::
-  A condition in a +case+ expression.  See
-  {control expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-
-while::
-  Creates a loop that executes while the condition is true.  See
-  {control expressions}[rdoc-ref:syntax/control_expressions.rdoc]
-
-yield::
-  Starts execution of the block sent to the current method.  See
-  {methods}[rdoc-ref:syntax/methods.rdoc]
-