>>-WORDPOS(phrase,string--+--------+--)------------------------><
+-,start-+
0 if phrase contains no words or if phrase is not found. Several whitespace characters between words in either phrase or string are treated as a single blank for the comparison, but otherwise the words must match exactly.
Example 7.105. Builtin function WORDPOS
WORDPOS("the","now is the time") -> 3
WORDPOS("The","now is the time") -> 0
WORDPOS("is the","now is the time") -> 2
WORDPOS("is the","now is the time") -> 2
WORDPOS("is time ","now is the time") -> 0
WORDPOS("be","To be or not to be") -> 2
WORDPOS("be","To be or not to be",3) -> 6