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psblas3/base/modules/psb_string_mod.f90

99 lines
3.5 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS v2.0
!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari University of Rome Tor Vergata
!!$
!!$ Redistribution and use in source and binary forms, with or without
!!$ modification, are permitted provided that the following conditions
!!$ are met:
!!$ 1. Redistributions of source code must retain the above copyright
!!$ notice, this list of conditions and the following disclaimer.
!!$ 2. Redistributions in binary form must reproduce the above copyright
!!$ notice, this list of conditions, and the following disclaimer in the
!!$ documentation and/or other materials provided with the distribution.
!!$ 3. The name of the PSBLAS group or the names of its contributors may
!!$ not be used to endorse or promote products derived from this
!!$ software without specific written permission.
!!$
!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
!!$ POSSIBILITY OF SUCH DAMAGE.
!!$
!!$
module psb_string_mod
interface tolower
module procedure tolowerc
end interface
interface toupper
module procedure toupperc
end interface
interface touppers
module procedure sub_toupperc
end interface
contains
function tolowerc(string)
character(len=*), intent(in) :: string
character(len=len(string)) :: tolowerc
character(len=*), parameter :: lcase='abcdefghijklmnopqrstuvwxyz'
character(len=*), parameter :: ucase='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
integer :: i,k
do i=1,len(string)
k = index(ucase,string(i:i))
if (k /=0 ) then
tolowerc(i:i) = lcase(k:k)
else
tolowerc(i:i) = string(i:i)
end if
enddo
end function tolowerc
function toupperc(string)
character(len=*), intent(in) :: string
character(len=len(string)) :: toupperc
character(len=*), parameter :: lcase='abcdefghijklmnopqrstuvwxyz'
character(len=*), parameter :: ucase='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
integer :: i,k
do i=1,len(string)
k = index(lcase,string(i:i))
if (k /=0 ) then
toupperc(i:i) = ucase(k:k)
else
toupperc(i:i) = string(i:i)
end if
enddo
end function toupperc
subroutine sub_toupperc(string,strout)
character(len=*), intent(in) :: string
character(len=*), intent(out) :: strout
character(len=*), parameter :: lcase='abcdefghijklmnopqrstuvwxyz'
character(len=*), parameter :: ucase='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
integer :: i,k
do i=1,len(string)
k = index(lcase,string(i:i))
if (k /=0 ) then
strout(i:i) = ucase(k:k)
else
strout(i:i) = string(i:i)
end if
enddo
end subroutine sub_toupperc
end module psb_string_mod