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Manual Reference Pages  - rpad (3m_strings)

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NAME

rpad(3f) - [M_strings:LENGTH] convert to a string and pad on the right to requested length (LICENSE:PD)

CONTENTS

Synopsis
Description
Options
Returns
Examples
Author
License

SYNOPSIS

function rpad(valuein,length) result(strout)

    class*,intent(in)  :: valuein(..)
    integer,intent(in) :: length

DESCRIPTION

rpad(3f) converts a scalar intrinsic value to a string and then pads it on the right with spaces to at least the specified length. If the trimmed input string is longer than the requested length the string is returned trimmed of leading and trailing spaces.

OPTIONS

str	The input may be scalar or a vector. the input value to return as a string, padded on the left to the specified length if shorter than length. The input may be any intrinsic scalar which is converted to a cropped string much as if written with list-directed output.
length	The minimum string length to return

RETURNS

strout	The input string padded to the requested length on the right with spaces.

EXAMPLES

Sample Program:

     program demo_rpad
      use M_strings, only : rpad
      implicit none
         write(*,’("[",a,"]")’) rpad( ’my string’, 20)
         write(*,’("[",a,"]")’) rpad( ’my string   ’, 20)
         write(*,’("[",a,"]")’) rpad( ’   my string’, 20)
         write(*,’("[",a,"]")’) rpad( ’   my string   ’, 20)
         write(*,’("[",a,"]")’) rpad( valuein=42 , length=7)
         write(*,’("[",a,"]")’) rpad( valuein=1.0/9.0 , length=20)
     end program demo_rpad

Results:

     > [my string           ]
     > [my string           ]
     > [my string           ]
     > [my string           ]
     > [42     ]
     > [0.111111112         ]

AUTHOR

John S. Urban

LICENSE

Public Domain

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Nemo Release 3.1

rpad (3m_strings)

January 10, 2025

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