9.227. SCAN

9.227 SCAN — Scan a string for the presence of a set of characters

Description:
Scans a STRING for any of the characters in a SET of characters.

If BACK is either absent or equals FALSE, this function returns the position of the leftmost character of STRING that is in SET. If BACK equals TRUE, the rightmost position is returned. If no character of SET is found in STRING, the result is zero.

Standard:
Fortran 95 and later, with KIND argument Fortran 2003 and later
Class:
Elemental function
Syntax:
RESULT = SCAN(STRING, SET[, BACK [, KIND]])
Arguments:
STRING Shall be of type CHARACTER.