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* doc/syntax/control_expressions.rdoc (redo Statement): Added note

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about retry.
	* doc/syntax/exceptions.rdoc:  Added retry statement


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drbrain 2013-01-15 18:06:24 +00:00
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doc/syntax/exceptions.rdoc
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@ -55,6 +55,23 @@ The exception is matched to the rescue section starting at the top, and matches
only once. If an ArgumentError is raised in the begin section it will not be
handled in the StandardError section.
You may retry rescued exceptions:
begin
# ...
rescue
# do something that may change the result of the begin block
retry
end
Execution will resume at the start of the begin block, so be careful not to
create an infinite loop.
Inside a rescue block is the only valid location for +retry+, all other uses
will raise a SyntaxError. If you wish to retry a block iteration use +redo+.
See {Control Expressions}[rdoc-ref:syntax/control_expressions.rdoc] for
details.
To always run some code whether an exception was raised or not, use +ensure+:
begin