indent Function

public function indent(line)

NAME

  indent(3f) - [M_strings:WHITESPACE] count number of leading spaces
  in a string
  (LICENSE:PD)

SYNOPSIS

function indent(line)

 integer                        :: indent
 character(len=*),intent(in)    :: line

DESCRIPTION

Count number of leading spaces in a CHARACTER variable.

EXAMPLES

Sample Program:

program demo_indent
!  test filter to count leading spaces in a character variable
!  might want to call notabs(3f) to expand tab characters
use M_strings, only : indent
implicit none
character(len=1024) :: in
integer             :: ios
   READFILE: do
      read(*,'(A)',iostat=ios)in
      if(ios /= 0) exit READFILE
      write(*,'(i3,"",a)')indent(in),trim(in)
   enddo READFILE
end program demo_indent

Results:

  3   a b c
  0a b c
  6      a b c

AUTHOR

John S. Urban

LICENSE

Public Domain

Arguments

Type IntentOptional Attributes Name
character(len=*), intent(in) :: line

Return Value integer


Contents

Source Code

indent

Source Code

function indent(line)

! ident_29="@(#) M_strings indent(3f) find number of leading spaces in a string"

integer                        :: indent
character(len=*),intent(in)    :: line
integer                        :: i
   indent=0
   NOTSPACE: block
      SCAN: do i=1,len(line)
         if(line(i:i) /= ' ')then
            indent=i-1
            exit NOTSPACE
         endif
      enddo SCAN
      indent=len(line)
   endblock NOTSPACE
end function indent