16.6.1.2192
SEARCH-WORDLIST
 
SEARCH
 
( c-addr u wid -- 0 | xt 1 | xt -1 )

Find the definition identified by the string c-addr u in the word list identified by wid. If the definition is not found, return zero. If the definition is found, return its execution token xt and one (1) if the definition is immediate, minus-one (-1) otherwise.

See:
A.16.6.1.2192 SEARCH-WORDLIST.

Rationale:
When SEARCH-WORDLIST fails to find the word, it does not return the string, unlike FIND. This is in accordance with the general principle that Forth words consume their arguments.
Testing:
ONLY FORTH DEFINITIONS
VARIABLE xt ' DUP xt !
VARIABLE xti ' .( xti ! \ Immediate word

T{ S" DUP" wid1 @ SEARCH-WORDLIST -> xt  @ -1 }T
T{ S" .("  wid1 @ SEARCH-WORDLIST -> xti @  1 }T
T{ S" DUP" wid2 @ SEARCH-WORDLIST ->        0 }T