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merge #15

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merged 7 commits into from
Jan 21, 2021
Merged

merge #15

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36f9abe
Revert "Update stdlib_ascii.f90"
arjenmarkus Sep 16, 2020
e170a75
Revert "Update stdlib_ascii.f90"
arjenmarkus Sep 16, 2020
c371a16
Merge branch 'master' of https://github.com/fortran-lang/stdlib
arjenmarkus Dec 18, 2020
65eb03c
Merge branch 'master' of https://github.com/fortran-lang/stdlib
arjenmarkus Dec 22, 2020
51bedb4
Merge branch 'master' of https://github.com/fortran-lang/stdlib
arjenmarkus Dec 31, 2020
9117db8
Merge branch 'master' of https://github.com/fortran-lang/stdlib
arjenmarkus Jan 21, 2021
349d0eb
Merge pull request #14 from fortran-lang/master
Jim-215-Fisher Jan 21, 2021
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32 changes: 10 additions & 22 deletions src/stdlib_ascii.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -68,18 +68,14 @@ module stdlib_ascii
!> Checks whether `c` is an ASCII letter (A .. Z, a .. z).
pure logical function is_alpha(c)
character(len=1), intent(in) :: c !! The character to test.
integer :: ic
ic = iachar(c)
is_alpha = (ic >= iachar('A') .and. ic <= iachar('Z')) .or. (ic >= iachar('a') .and. ic <= iachar('z'))
is_alpha = (c >= 'A' .and. c <= 'Z') .or. (c >= 'a' .and. c <= 'z')
end function

!> Checks whether `c` is a letter or a number (0 .. 9, a .. z, A .. Z).
pure logical function is_alphanum(c)
character(len=1), intent(in) :: c !! The character to test.
integer :: ic
ic = iachar(c)
is_alphanum = (ic >= iachar('0') .and. ic <= iachar('9')) .or. (ic >= iachar('a') .and. ic <= iachar('z')) &
.or. (ic >= iachar('A') .and. ic <= iachar('Z'))
is_alphanum = (c >= '0' .and. c <= '9') .or. (c >= 'a' .and. c <= 'z') &
.or. (c >= 'A' .and. c <= 'Z')
end function

!> Checks whether or not `c` is in the ASCII character set -
Expand All @@ -100,26 +96,20 @@ pure logical function is_control(c)
!> Checks whether `c` is a digit (0 .. 9).
pure logical function is_digit(c)
character(len=1), intent(in) :: c !! The character to test.
integer :: ic
ic = iachar(c)
is_digit = (iachar('0') <= ic) .and. (ic <= iachar('9'))
is_digit = ('0' <= c) .and. (c <= '9')
end function

!> Checks whether `c` is a digit in base 8 (0 .. 7).
pure logical function is_octal_digit(c)
character(len=1), intent(in) :: c !! The character to test.
integer :: ic
ic = iachar(c)
is_octal_digit = (ic >= iachar('0')) .and. (ic <= iachar('7'))
is_octal_digit = (c >= '0') .and. (c <= '7');
end function

!> Checks whether `c` is a digit in base 16 (0 .. 9, A .. F, a .. f).
pure logical function is_hex_digit(c)
character(len=1), intent(in) :: c !! The character to test.
integer :: ic
ic = iachar(c)
is_hex_digit = (ic >= iachar('0') .and. ic <= iachar('9')) .or. (ic >= iachar('a') .and. ic <= iachar('f')) &
.or. (ic >= iachar('A') .and. ic <= iachar('F')) .or. (ic >= iachar('a') .and. ic <= iachar('f'))
is_hex_digit = (c >= '0' .and. c <= '9') .or. (c >= 'a' .and. c <= 'f') &
.or. (c >= 'A' .and. c <= 'F')
end function

!> Checks whether or not `c` is a punctuation character. That includes
Expand Down Expand Up @@ -165,9 +155,7 @@ pure logical function is_lower(c)
!> Checks whether `c` is an uppercase ASCII letter (A .. Z).
pure logical function is_upper(c)
character(len=1), intent(in) :: c !! The character to test.
integer :: ic
ic = iachar(c)
is_upper = ic >= iachar('A') .and. ic <= iachar('Z')
is_upper = (c >= 'A') .and. (c <= 'Z')
end function

!> Checks whether or not `c` is a whitespace character. That includes the
Expand All @@ -177,7 +165,7 @@ pure logical function is_white(c)
character(len=1), intent(in) :: c !! The character to test.
integer :: ic
ic = iachar(c) ! TAB, LF, VT, FF, CR
is_white = ic == iachar(' ') .or. (ic >= int(z'09') .and. ic <= int(z'0D'))
is_white = (c == ' ') .or. (ic >= int(z'09') .and. ic <= int(z'0D'));
end function

!> Checks whether or not `c` is a blank character. That includes the
Expand All @@ -186,7 +174,7 @@ pure logical function is_blank(c)
character(len=1), intent(in) :: c !! The character to test.
integer :: ic
ic = iachar(c) ! TAB
is_blank = ic == iachar(' ') .or. ic == int(z'09')
is_blank = (c == ' ') .or. (ic == int(z'09'));
end function

!> Returns the corresponding lowercase letter, if `c` is an uppercase
Expand Down