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Update ascii #233

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56740fc
Update stdlib_ascii.f90
arjenmarkus Sep 16, 2020
a996ec5
Update stdlib_ascii.f90
arjenmarkus Sep 16, 2020
37f1d6c
Update src/stdlib_ascii.f90
arjenmarkus Sep 24, 2020
a68430a
Update src/stdlib_ascii.f90
arjenmarkus Sep 24, 2020
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9 changes: 6 additions & 3 deletions src/stdlib_ascii.f90
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Expand Up @@ -144,14 +144,17 @@ pure logical function is_graphical(c)
pure logical function is_printable(c)
character(len=1), intent(in) :: c !! The character to test.
integer :: ic
ic = iachar(c) ! '~'
is_printable = c >= ' ' .and. ic <= int(z'7E')
ic = iachar(c)
!The character is printable if it's between ' ' and '~' in the ASCII table
is_printable = ic >= iachar(' ') .and. ic <= int(z'7E')
end function

!> Checks whether `c` is a lowercase ASCII letter (a .. z).
pure logical function is_lower(c)
character(len=1), intent(in) :: c !! The character to test.
is_lower = (c >= 'a') .and. (c <= 'z')
integer :: ic
ic = iachar(c)
is_lower = ic >= iachar('a') .and. ic <= iachar('z')
end function

!> Checks whether `c` is an uppercase ASCII letter (A .. Z).
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