21 lines
1.2 KiB
Text
21 lines
1.2 KiB
Text
Comma quibbling is a task originally set by Eric Lippert in his [http://blogs.msdn.com/b/ericlippert/archive/2009/04/15/comma-quibbling.aspx blog].
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;Task:
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Write a function to generate a string output which is the concatenation of input words from a list/sequence where:
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# An input of no words produces the output string of just the two brace characters "{}".
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# An input of just one word, e.g. ["ABC"], produces the output string of the word inside the two braces, e.g. "{ABC}".
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# An input of two words, e.g. ["ABC", "DEF"], produces the output string of the two words inside the two braces with the words separated by the string " and ", e.g. "{ABC and DEF}".
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# An input of three or more words, e.g. ["ABC", "DEF", "G", "H"], produces the output string of all but the last word separated by ", " with the last word separated by " and " and all within braces; e.g. "{ABC, DEF, G and H}".
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<br>
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Test your function with the following series of inputs showing your output here on this page:
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* [] # (No input words).
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* ["ABC"]
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* ["ABC", "DEF"]
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* ["ABC", "DEF", "G", "H"]
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<br>
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Note: Assume words are non-empty strings of uppercase characters for this task.
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<br><br>
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