Platform | x64, Win32, .NET |
|
Purpose |
To scan a string for any one of the characters in a set of characters. |
|
Class |
Elemental function. |
|
Syntax |
INTEGER FUNCTION SCAN(STRING, SET [, BACK]) |
|
Description |
If BACK is omitted, this function scans STRING for the first occurrence of any of the characters in SET. If BACK is set to true, scanning starts at the end of STRING. |
|
Return value |
If a match is found, the result is an integer marking the position of the character in STRING starting at 1. If a match is not found or the length of STRING or SET is zero, the result is zero. |
|
Example |
SCAN ('FORTRAN', 'TR') has the value 3. SCAN ('FORTRAN', 'TR', BACK = .TRUE.) has the value 5. |