stdlib_ascii moduleThe stdlib_ascii module provides procedures for handling and manipulating
intrinsic character variables and constants.
stdlib_asciiSpecification of constants is currently incomplete.
stdlib_ascii proceduresSpecification of procedures is currently incomplete.
to_lowerExperimental
Converts input character variable to all lowercase.
res = to_lower (string)
Pure function.
string: shall be an intrinsic character type. It is an intent(in) argument.
The result is an intrinsic character type of the same length as string.
program demo_to_lower
use stdlib_ascii, only : to_lower
implicit none
print'(a)', to_lower("HELLo!") ! returns "hello!"
end program demo_to_lower
to_upperExperimental
Converts input character variable to all uppercase.
res = to_upper (string)
Pure function.
string: shall be an intrinsic character type. It is an intent(in) argument.
The result is an intrinsic character type of the same length as string.
program demo_to_upper
use stdlib_ascii, only : to_upper
implicit none
print'(a)', to_upper("hello!") ! returns "HELLO!"
end program demo_to_upper
to_titleExperimental
Returns the titlecase version of the input character variable.
Title case: First character of every word in the sentence is converted to
uppercase and the rest of the characters are converted to lowercase.
A word is a contiguous sequence of character(s) which consists of alphabetical
character(s) and numeral(s) only and doesn't exclude any alphabetical character
or numeral present next to either of its 2 ends.
res = to_title (string)
Pure function.
string: shall be an intrinsic character type. It is an intent(in) argument.
The result is an intrinsic character type of the same length as string.
program demo_to_title
use stdlib_ascii, only : to_title
implicit none
print*, to_title("hello there!") ! returns "Hello There!"
print*, to_title("'enquoted'") ! returns "'Enquoted'"
print*, to_title("1st") ! returns "1st"
end program demo_to_title
to_sentenceExperimental
Returns the sentencecase version of the input character variable.
The first alphabetical character of the sequence is transformed to uppercase
unless it follows a numeral. The rest of the characters in the sequence are
transformed to lowercase.
res = to_sentence (string)
Pure function.
string: shall be an intrinsic character type. It is an intent(in) argument.
The result is an intrinsic character type of the same length as string.
program demo_to_sentence
use stdlib_ascii, only : to_sentence
implicit none
print*, to_sentence("hello!") ! returns "Hello!"
print*, to_sentence("'enquoted'") ! returns "'Enquoted'"
print*, to_sentence("1st") ! returns "1st"
end program demo_to_sentence
reverseExperimental
Reverses the order of all characters in the input character type.
res = reverse (string)
Pure function.
string: shall be an intrinsic character type. It is an intent(in) argument.
The result is an intrinsic character type of the same length as string.
program demo_reverse
use stdlib_ascii, only : reverse
implicit none
print'(a)', reverse("Hello, World!") ! returns "!dlroW ,olleH"
end program demo_reverse
to_stringExperimental
Create a character string representing the value of the provided variable.
res = to_string (string)
Pure function.
val: shall be an intrinsic integer or logical type. It is an intent(in) argument.
The result is an intrinsic character type.
program demo_string_value
use stdlib_ascii, only : to_string
implicit none
print'(a)', to_string(-3) ! returns "-3"
print'(a)', to_string(.true.) ! returns "T"
print'(a)', to_string(42) ! returns "42"
end program demo_string_value