whocalledme.pro
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; docformat = 'rst'
;
; NAME:
; WhoCalledMe
;
; PURPOSE:
; This is a function that will identify the caller of the program module
; that contains this funciton.
;
;******************************************************************************************;
; ;
; Copyright (c) 2011, by Fanning Software Consulting, Inc. All rights reserved. ;
; ;
; Redistribution and use in source and binary forms, with or without ;
; modification, are permitted provided that the following conditions are met: ;
; ;
; * Redistributions of source code must retain the above copyright ;
; notice, this list of conditions and the following disclaimer. ;
; * Redistributions in binary form must reproduce the above copyright ;
; notice, this list of conditions and the following disclaimer in the ;
; documentation and/or other materials provided with the distribution. ;
; * Neither the name of Fanning Software Consulting, Inc. nor the names of its ;
; contributors may be used to endorse or promote products derived from this ;
; software without specific prior written permission. ;
; ;
; THIS SOFTWARE IS PROVIDED BY FANNING SOFTWARE CONSULTING, INC. ''AS IS'' AND ANY ;
; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES ;
; OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT ;
; SHALL FANNING SOFTWARE CONSULTING, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, ;
; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED ;
; TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; ;
; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ;
; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ;
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS ;
; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ;
;******************************************************************************************;
;
;+
; :Description:
; This is a function that will identify the caller of the program module
; that contains this funciton.
;
; :Categories:
; Utilities
;
; :Params:
; none
;
; :Keywords:
; none
;
; : Return Value:
; caller:
; A string in uppercase letters identifying the caller of the program
; module from which this program was called.
;
; :Examples:
; Used to determine which module called this module containing WhoCalledMe::
; IDL> Print, WhoCalledMe()
;
; ; Compile and run the following main level program.
; ;***************************
; PRO junker
; Print, WhoCalledMe()
; END
;
; PRO junk
; Print, WhoCalledMe()
; END
;
; junk
; END
; ;**************************
; IDL> .go
; $MAIN$
; JUNK
;
; :Author:
; FANNING SOFTWARE CONSULTING::
; David W. Fanning
; 1645 Sheely Drive
; Fort Collins, CO 80526 USA
; Phone: 970-221-0438
; E-mail: david@idlcoyote.com
; Coyote's Guide to IDL Programming: http://www.idlcoyote.com
;
; :History:
; Change History::
; Written, 16 January 2011. DWF.
;
; :Copyright:
; Copyright (c) 2011, Fanning Software Consulting, Inc.
;-
FUNCTION WhoCalledMe
Compile_Opt idl2
; Return to caller on error.
On_Error, 2
; Get the call stack and the calling routine's name.
callStack = Scope_Traceback()
; Find where I am in the call stack. The calling program is up
; two levels from there. Unless, of course, I am close to $MAIN$.
index = Where(StrMid(callstack, 0, 11) EQ 'WHOCALLEDME', count)
IF count GE 1 THEN index = (Reverse(index))[0]
callingRoutine = (StrSplit(StrCompress(callStack[(index-2) > 0])," ", /Extract))[0]
; Return the answer.
RETURN, callingRoutine
END