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- Synopsis:
- $common(<word list> / <word list>)
- $diff(<word list> / <word list>)
-
- Technical:
- These functions are exact opposites. The $common() function finds and
- returns all words common to both input lists. The $diff() function
- funds are returns all words present in only one list. The two input
- lists must be separated by a single forward-slash. Whitespace is not
- significant.
-
- Practical:
- These functions might be considered useful for statistical information.
- For instance, given 2 channels, they could be used to show who is and
- isn't on both of them.
-
- Returns:
- common: words in both lists
- diff: words not in both lists
-
- Examples:
- $common(one two three / two three four) returns "two three"
- $common(one two / three four) returns "" (empty string)
- $diff(one two three / two three four) returns "one four"
- $diff(one two / one two) returns "" (empty string)
-
- See Also:
- common(6); remws(6); uniq(6)
-
-