/usr/share/gnudatalanguage/lib/idl_validname.pro is in libgnudatalanguage0 0.9.7-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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;
; NAME: IDL_VALIDNAME
;
; PURPOSE:
; replacement for IDL_VALIDNAME
;
; MODIFICATION HISTORY:
; - 2010-Oct. : creation by Rene Preusker
; - 2011-Aug-18: modification by Alain Coulais :
; adding FAKE keywords /CONVERT_ALL,
; /CONVERT_SPACES for test with HealPix lib.
; - 2011-Aug-20: Alain: implement draft of CONVERT_SPACES
; - 2011-Aug: Hong Xu : implement "reserved words"
; - 2013-July: Tim : better management of "\" and "$" (patch 66)
; Alain : "!" at first place only OK; multi inputs loop
;
; LICENCE:
; Copyright (C) 2010, R. Preusker
; Copyright (C) 2011, Alain Coulais, Hong Xu
; Copyright (C) 2013, Tim, Alain Coulais
;
; This program is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 2 of the License, or
; (at your option) any later version.
;
;-
;
function IDL_VALIDNAME, in_list, $
convert_spaces=convert_spaces, $
convert_all=convert_all, $
help=help, test=test
;
if KEYWORD_SET(help) then begin
print, 'function IDL_VALIDNAME, in_list, $'
print, ' convert_spaces=convert_spaces, $'
print, ' convert_all=convert_all, $'
print, ' help=help, test=test'
return, -1
endif
;
reserved_words=['AND', $
'BEGIN', $
'BREAK', $
'CASE', $
'COMMON', $
'COMPILE_OPT', $
'CONTINUE', $
'DO', $
'ELSE', $
'END', $
'ENDCASE', $
'ENDELSE', $
'ENDFOR', $
'ENDIF', $
'ENDREP', $
'ENDSWITCH', $
'ENDWHILE', $
'EQ', $
'FOR', $
'FORWARD_FUNCTION', $
'FUNCTION', $
'GE', $
'GOTO', $
'GT', $
'IF', $
'INHERITS', $
'LE', $
'LT', $
'MOD', $
'NE', $
'NOT', $
'OF', $
'ON_IOERROR', $
'OR', $
'PRO', $
'REPEAT', $
'SWITCH', $
'THEN', $
'UNTIL', $
'WHILE', $
'XOR']
;
;; AC 03/11/2011
;; we need a working STREGEX to be able to run IDL_VALIDNAME
;; (please don't remove this test: if STREGEX is wrong, infinite loop below)
;
if KEYWORD_SET(convert_all) then begin
if (STREGEX('1abc','[^0-9a-z]') NE -1) then begin
MESSAGE, 'No working STREGEX, we cannot do this test.'
endif
endif
;
out_list=in_list
;
for iii=0, n_elements(out_list)-1 do begin
;;
out=out_list[iii]
;;
if (out EQ '') then begin
if KEYWORD_SET(convert_all) then out='_'
out_list[iii]=out
break
endif
;;
if KEYWORD_SET(convert_spaces) or KEYWORD_SET(convert_all) then begin
while 1 do begin
res = STRPOS(out, ' ')
if (res EQ -1) then break
STRPUT, out, '_', res
endwhile
endif
;;
if KEYWORD_SET(convert_all) then begin
;;
first_char = STRMID(out, 0, 1)
;;
_ = WHERE(reserved_words EQ STRUPCASE(out), n)
if (n gt 0) then out = '_' + out
while 1 do begin
res = STREGEX(out, '[^0-9A-Za-z_$]')
if res EQ -1 then break
STRPUT, out, '_', res
endwhile
;; numbers and $ are not allowed as first char
;;
if STREGEX(first_char, '^[0-9$]') EQ 0 then out = "_" + out
;; one exception: if first char is "!", is is OK
if (first_char EQ '!') then out='!'+STRMID(out,1)
endif else begin
_ = WHERE(reserved_words EQ STRUPCASE(out), n)
if (STREGEX(out, '^[0-9$]') EQ 0) or $
STREGEX(out, '[^0-9A-Za-z_$]') ne -1 or $
n gt 0 then out=''
endelse
out_list[iii]=out
endfor
;
if KEYWORD_SET(test) then STOP
;
return, out_list
;
end
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