The stdlib_ascii
module provides procedures for handling and manipulating
intrinsic character variables and constants.
The specification of this module is available here.
Type | Visibility | Attributes | Name | Initial | |||
---|---|---|---|---|---|---|---|
character(len=1), | public, | parameter | :: | ACK | = | achar(int(z'06')) | Acknowledge |
character(len=1), | public, | parameter | :: | BEL | = | achar(int(z'07')) | Bell |
character(len=1), | public, | parameter | :: | BS | = | achar(int(z'08')) | Backspace |
character(len=1), | public, | parameter | :: | CAN | = | achar(int(z'18')) | Cancel |
character(len=1), | public, | parameter | :: | CR | = | achar(int(z'0D')) | Carriage return |
character(len=1), | public, | parameter | :: | DC1 | = | achar(int(z'11')) | Device control 1 |
character(len=1), | public, | parameter | :: | DC2 | = | achar(int(z'12')) | Device control 2 |
character(len=1), | public, | parameter | :: | DC3 | = | achar(int(z'13')) | Device control 3 |
character(len=1), | public, | parameter | :: | DC4 | = | achar(int(z'14')) | Device control 4 |
character(len=1), | public, | parameter | :: | DEL | = | achar(int(z'7F')) | Delete |
character(len=1), | public, | parameter | :: | DLE | = | achar(int(z'10')) | Data link escape |
character(len=1), | public, | parameter | :: | EM | = | achar(int(z'19')) | End of medium |
character(len=1), | public, | parameter | :: | ENQ | = | achar(int(z'05')) | Enquiry |
character(len=1), | public, | parameter | :: | EOT | = | achar(int(z'04')) | End of transmission |
character(len=1), | public, | parameter | :: | ESC | = | achar(int(z'1B')) | Escape |
character(len=1), | public, | parameter | :: | ETB | = | achar(int(z'17')) | End of transmission block |
character(len=1), | public, | parameter | :: | ETX | = | achar(int(z'03')) | End of text |
character(len=1), | public, | parameter | :: | FF | = | achar(int(z'0C')) | NP form feed, new page |
character(len=1), | public, | parameter | :: | FS | = | achar(int(z'1C')) | File separator |
character(len=1), | public, | parameter | :: | GS | = | achar(int(z'1D')) | Group separator |
character(len=1), | public, | parameter | :: | LF | = | achar(int(z'0A')) | NL line feed, new line |
character(len=1), | public, | parameter | :: | NAK | = | achar(int(z'15')) | Negative acknowledge |
character(len=1), | public, | parameter | :: | NUL | = | achar(int(z'00')) | Null |
character(len=1), | public, | parameter | :: | RS | = | achar(int(z'1E')) | Record separator |
character(len=1), | public, | parameter | :: | SI | = | achar(int(z'0F')) | Shift in |
character(len=1), | public, | parameter | :: | SO | = | achar(int(z'0E')) | Shift out |
character(len=1), | public, | parameter | :: | SOH | = | achar(int(z'01')) | Start of heading |
character(len=1), | public, | parameter | :: | STX | = | achar(int(z'02')) | Start of text |
character(len=1), | public, | parameter | :: | SUB | = | achar(int(z'1A')) | Substitute |
character(len=1), | public, | parameter | :: | SYN | = | achar(int(z'16')) | Synchronous idle |
character(len=1), | public, | parameter | :: | TAB | = | achar(int(z'09')) | Horizontal tab |
character(len=1), | public, | parameter | :: | US | = | achar(int(z'1F')) | Unit separator |
character(len=1), | public, | parameter | :: | VT | = | achar(int(z'0B')) | Vertical tab |
character(len=*), | public, | parameter | :: | digits | = | hex_digits(1:10) | 0 .. 9 |
character(len=*), | public, | parameter | :: | fullhex_digits | = | "0123456789ABCDEFabcdef" | 0 .. 9A .. Fa .. f |
character(len=*), | public, | parameter | :: | hex_digits | = | fullhex_digits(1:16) | 0 .. 9A .. F |
character(len=*), | public, | parameter | :: | letters | = | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" | A .. Za .. z |
character(len=*), | public, | parameter | :: | lowercase | = | letters(27:) | a .. z |
character(len=*), | public, | parameter | :: | lowerhex_digits | = | "0123456789abcdef" | 0 .. 9a .. f |
character(len=*), | public, | parameter | :: | octal_digits | = | digits(1:8) | 0 .. 7 |
character(len=*), | public, | parameter | :: | uppercase | = | letters(1:26) | A .. Z |
character(len=*), | public, | parameter | :: | whitespace | = | " "//TAB//VT//CR//LF//FF | ASCII _whitespace |
Checks whether c
is an ASCII letter (A .. Z, a .. z).
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether c
is a letter or a number (0 .. 9, a .. z, A .. Z).
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether or not c
is in the ASCII character set -
i.e. in the range 0 .. 0x7F.
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether or not c
is a blank character. That includes the
only the space and tab characters
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether c
is a control character.
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether c
is a digit (0 .. 9).
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether or not c
is a printable character other than the
space character.
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether c
is a digit in base 16 (0 .. 9, A .. F, a .. f).
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether c
is a lowercase ASCII letter (a .. z).
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether c
is a digit in base 8 (0 .. 7).
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether or not c
is a printable character - including the
space character.
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether or not c
is a punctuation character. That includes
all ASCII characters which are not control characters, letters,
digits, or whitespace.
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether c
is an uppercase ASCII letter (A .. Z).
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Checks whether or not c
is a whitespace character. That includes the
space, tab, vertical tab, form feed, carriage return, and linefeed
characters.
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=1), | intent(in) | :: | c | The character to test. |
Reverse the character order in the input character variable (Specification)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=*), | intent(in) | :: | string |
Convert character variable to lower case (Specification)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=*), | intent(in) | :: | string |
Converts character sequence to sentence case (Specification)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=*), | intent(in) | :: | string |
Converts character sequence to title case (Specification)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=*), | intent(in) | :: | string |
Convert character variable to upper case (Specification)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
character(len=*), | intent(in) | :: | string |