Name

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      CONCAT_DIR()
             

Purpose

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      To concatenate directory and file names for current OS.

Explanation

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      The given file name is appended to the given directory name with the
      format appropriate to the current operating system.

Calling Sequence

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      result = concat_dir( directory, file)

Inputs

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      directory - the directory path (string)
      file - the basic file name and extension (string)
                                  can be an array of filenames.

Outputs

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      The function returns the concatenated string. If the file input
      is a string array then the output will be a string array also.
             

Examples

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      IDL> pixfile = concat_dir('$DIR_GIS_MODEL','pixels.dat')
      IDL> file = ['f1.dat','f2.dat','f3.dat']
      IDL> dir = '$DIR_NIS_CAL'
      IDL>

Restrictions

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      The version of CONCAT_DIR available at
      http://sohowww.nascom.nasa.gov/solarsoft/gen/idl/system/concat_dir.pro
      includes (mostly) additional VMS-specific keywords.

Category

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        Utilities, Strings
             

Revision History

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      Prev Hist. : Yohkoh routine by M. Morrison
      Written : CDS version by C D Pike, RAL, 19/3/93
      Version : Version 1 19/3/93
      Documentation modified Nov-94 W. Landsman
      Add V4.0 support for Windows W. Landsman Aug 95
      Converted to IDL V5.0 W. Landsman September 1997
      Changed loops to long integer W. Landsman December 1998
      Added Mac support, translate Windows environment variables,
      & treat case where dirname ends in '/' W. Landsman Feb. 2000
      Assume since V5.5, remove VMS support W. Landsman Sep. 2006