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Ingy döt Net 2013-04-11 12:07:39 -07:00
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Given a list containing a number of strings of which one is to be selected and a prompt string, create a function that:
* Print a textual menu formatted as an index value followed by its corresponding string for each item in the list.
* Prompt the user to enter a number.
* Return the string corresponding to the index number.
The function should reject input that is not an integer or is an out of range integer index by recreating the whole menu before asking again for a number. The function should return an empty string if called with an empty list.
For test purposes use the four phrases: “<tt>fee fie</tt>”, “<tt>huff and puff</tt>”, “<tt>mirror mirror</tt>” and “<tt>tick tock</tt>” in a list.
Note: This task is fashioned after the action of the [http://www.softpanorama.org/Scripting/Shellorama/Control_structures/select_statements.shtml Bash select statement].