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doc_library.pro
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1997-07-08
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; $Id: doc_library.pro,v 1.4 1997/01/15 03:11:50 ali Exp $
;
; Copyright (c) 1982-1997, Research Systems, Inc. All rights reserved.
; Unauthorized reproduction prohibited.
;
pro doc_library, name, print=printflg, directory = direct, multi = multi, $
PATH = path, FILE=file
;+
; NAME:
; DOC_LIBRARY
;
; PURPOSE:
; Extract the documentation template of one or more IDL modules
; (procedures or functions). This command provides a standard interface
; to the operating-system specific DL_DOS, DL_UNIX, and
; DL_VMS procedures.
;
; CATEGORY:
; Help, documentation.
;
; CALLING SEQUENCE:
; DOC_LIBRARY ;For prompting.
;
; DOC_LIBRARY, Name ;Extract documentation for procedure Name using
; the current !PATH.
;
; INPUTS:
; Name: The string containing the name of the procedure.
; Under Unix, Name may be "*" to get information on all routines.
;
; KEYWORDS:
; PRINT: If set, this keyword sends the output of DOC_LIBRARY to the
; default printer. Under Unix, if PRINT is a string, it is
; interpreted as a shell command used for output with
; the documentation from DOC_LIBRARY providing standard input
; (i.e. PRINT="cat > junk").
;
; UNIX KEYWORDS:
; DIRECTORY: The directory to search. If omitted, the current directory
; and !PATH are used.
;
; MULTI: If set, this flag allows printing of more than one file if the
; requested module exists in more than one directory in the path
; and the current directory.
;
; VMS KEYWORDS:
; FILE: If this keyword is set, the output is left in the file
; "userlib.doc", in the current directory.
;
; PATH: An optional directory/library search path. This keyword uses
; the same format and semantics as !PATH. If omitted, !PATH is
; used.
;
; OUTPUTS:
; Documentation is sent to the standard output unless /PRINT
; is specified.
;
; COMMON BLOCKS:
; None.
;
; SIDE EFFECTS:
; Output is produced on terminal or printer.
;
; RESTRICTIONS:
; The DIRECTORY and MULTI keywords are ignored under VMS. The
; FILE and PATH keywords are ignored under Unix.
;
; EXAMPLE:
; To obtain documentation for the User's Library function DIST, enter:
; DOC_LIBRARY, 'DIST'
;
; For a graphical interface to DOC_LIBRARY, see the procedure XDL.
;
; MODIFICATION HISTORY:
; Written, DMS, Sept, 1982.
; Added library param, Jul 1987.
; Unix version, DMS, Feb, 1988.
; New VMS version, DMS, Dec. 1989
; Wrapper procedure to call the correct version
; under Unix and VMS, AB, Jan 1990
; Added support for DOS, SNG, Dec, 1990
; Added support for Macintosh, DJE, Nov, 1994
;-
on_error,2 ;Return to caller if an error occurs
case !version.os of
'vms': DL_VMS, NAME, PRINT=printflg, FILE=file, PATH=path
'Win32': DL_DOS, NAME, DIRECTORY=direct, PRINT=printflg
'MacOS': DL_MAC, NAME, DIRECTORY=direct, PRINT=printflg
else: DL_UNIX, NAME, DIRECTORY=direct, PRINT=printflg, MULTI = multi
endcase
end