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! Copyright (c) 2020 Jeffrey Armstrong <jeff@rainbow-100.com>
!
! Permission is hereby granted, free of charge, to any person obtaining a copy
! of this software and associated documentation files (the "Software"), to deal
! in the Software without restriction, including without limitation the rights
! to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
! copies of the Software, and to permit persons to whom the Software is
! furnished to do so, subject to the following conditions:
!
! The above copyright notice and this permission notice shall be included in
! all copies or substantial portions of the Software.
!
! The Software shall be used for Good, not Evil.
!
! THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
! IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
! FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
! AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
! LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
! OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
! SOFTWARE.
module escaper
character(*), parameter::need_escape = " $&`:<>[]{}+#%@/;=?\^|~',"//'"'
contains
subroutine escape_string(text)
implicit none
character(*), intent(inout)::text
integer::i
character(3)::replace_text
integer::replace_code
i=1
do while(i < len_trim(text))
if(index(need_escape, text(i:i)) > 0) then
replace_code = iachar(text(i:i))
write(replace_text, '(A1,Z2)') "%", replace_code
if(i == 1) then
text = replace_text//text(2:len_trim(text))
else if(i == len_trim(text)) then
text = text(1:(i-1))//replace_text
else
text = text(1:(i-1))//replace_text//text((i+1):len_trim(text))
end if
i = i + 3
else
i = i + 1
end if
end do
end subroutine escape_string
end module escaper
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