scan Interface

public interface scan

Scan a string for the presence of a set of characters. Scans a string for any of the characters in a set of characters.

If back is either absent or false, this function returns the position of the leftmost character of string that is in set. If back is true, the rightmost position is returned. If no character of set is found in string, the result is zero.

This method is elemental and returns a default integer scalar value.


Contents


Module Procedures

private elemental function scan_string_string(string, set, back) result(pos)

Scan a character sequence for any of the characters in a set of characters. In this version both the character sequence and the character set are represented by a string.

Arguments

Type IntentOptional AttributesName
type(string_type), intent(in) :: string
type(string_type), intent(in) :: set
logical, intent(in), optional :: back

Return Value integer

private elemental function scan_string_char(string, set, back) result(pos)

Scan a character sequence for any of the characters in a set of characters. In this version the character sequences is represented by a string.

Arguments

Type IntentOptional AttributesName
type(string_type), intent(in) :: string
character(len=*), intent(in) :: set
logical, intent(in), optional :: back

Return Value integer

private elemental function scan_char_string(string, set, back) result(pos)

Scan a character sequence for any of the characters in a set of characters. In this version the set of characters is represented by a string.

Arguments

Type IntentOptional AttributesName
character(len=*), intent(in) :: string
type(string_type), intent(in) :: set
logical, intent(in), optional :: back

Return Value integer