/usr/share/gnudatalanguage/lib/strsplit.pro is in libgnudatalanguage0 0.9.7-2.
This file is owned by root:root, with mode 0o644.
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;
; NAME: STRSPLIT
;
; PURPOSE: STRTOK wrapper
;
; CATEGORY: String Manipulation
;
; CALLING SEQUENCE: Same as STRTOK
;
;
; MODIFICATION HISTORY:
; 17-Jul-2005 : written by Pierre Chanial
; 30-Jun-2009 : Alain Coulais : will allow 1D string : 'string' and ['string']
; 14-Apr-2010 : Alain Coulais : complete re-writing
; Jun-2010 : Lea Noreskal : /preserve_null and other improvments
; 15-Oct-2010 : Alain Coulais : bug in COUNT,
; activating no exclusive keywords,
; better management of (missing/void) inputs
; 11-Aug-2011 : Alain Coulais : solving conflits due to
; /preserve_null and /regex; curing bugs in special cases
; 11-Jul-2012 : When /extract, we must return STRARR even for 1-element
; 14-Aug-2012 : Now GDL enforces scalar type in FOR loop ... take care
; of STRLEN ! We ensure to work on pure STRING = '', not STRING = Array[1]
; 25-Jul-2013 : After fixing STRTOK this simplified version should
; do.
; 01-Aug-2013 : Patch for bug #554, insure LENGTH and EXTRACT are
; not present simultaneously, return correct length in cases such as
; strsplit('aaaaaaaaaaaaaaaaaaaaaa','b',leng=leng) and
; strsplit('aaaaaaaaaaaaaaaaaaaaaa','a',leng=leng).
;
; LICENCE:
; Copyright (C)
; 2004, Pierre Chanial
; 2010, Alain Coulais and Lea Noreskal; 2012 :AC
; 2013, Marc Schellens
; 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 STRSPLIT, input1, pattern, count=count, length=length, $
extract=extract, regex=regex, escape=escape, $
fold_case=fold_case, preserve_null=preserve_null, $
test=test, help=help
;
ON_ERROR, 2
;
if KEYWORD_SET(help) then begin
print, 'function STRSPLIT, input1, pattern, count=count, length=length, $'
print, ' extract=extract, regex=regex, escape=escape, $'
print, ' fold_case=fold_case, preserve_null=preserve_null, $'
print, ' test=test, help=help'
return, -1
endif
;
if N_PARAMS() EQ 0 then begin
MESSAGE, 'Variable is undefined: STRINGIN'
endif
;
if N_ELEMENTS(input1) EQ 0 then MESSAGE, 'Variable is undefined: STRINGIN.'
if N_ELEMENTS(input1) GT 1 then $
MESSAGE, 'Expression must be a scalar or 1 element array in this context: STRINGIN.'
;
if (N_PARAMS() EQ 2) then begin
if N_ELEMENTS(pattern) EQ 0 then MESSAGE, 'Variable is undefined: PATTERN.'
endif
;
;
;; AC 14-Oct-2010: may be not fully OK (see below)
;if KEYWORD_SET(regex) and KEYWORD_SET(preserve_null) then begin
; MESSAGE, /continue, 'Keywords /REGEX and /PRESERVE_NULL are incompatible, /PRESERVE_NULL is ignored'
;endif
;
if (SIZE(input1, /type) NE 7) then begin
local_input1=STRING(input1)
;;MESSAGE, 'Invalid input string.'
endif else begin
local_input1=input1
endelse
;
if ARG_PRESENT(length) and KEYWORD_SET(extract) then MESSAGE, "Conflicting keywords."
; we explicitely change String [1] array into pure String.
local_input1=local_input1[0]
;
; When no Pattern is provided, default pattern is white space (' ')
;
short_cut=0
;
if (STRLEN(local_input1) EQ 0) then begin
short_cut=1
if KEYWORD_SET(extract) then resu='' else resu=0
endif
if (N_PARAMS() EQ 2) then begin
if (STRLEN(pattern) EQ 0) then begin
short_cut=1
if KEYWORD_SET(extract) then resu='' else resu=0
endif else begin
local_pattern=pattern[0]
endelse
endif
;
; When no Pattern is provided, default pattern is white space (' ' and
; tab)
;
if ((short_cut EQ 0) AND (N_PARAMS() EQ 1)) then begin
resu=STRTOK(local_input1, extract=extract,$
REGEX=regex, preserve_null=preserve_null, escape=escape, fold_case=fold_case)
; 2nd pass for length
if ARG_PRESENT(length) then temp=STRTOK(local_input1, LENGTH=length, REGEX=regex, preserve_null=preserve_null, escape=escape, fold_case=fold_case)
endif
;
if ((short_cut EQ 0) AND (N_PARAMS() EQ 2)) then begin
resu=STRTOK(local_input1, local_pattern, extract=extract,$
REGEX=regex, preserve_null=preserve_null, escape=escape, fold_case=fold_case)
; 2nd pass for length.
if ARG_PRESENT(length) then temp=STRTOK(local_input1, local_pattern, LENGTH=length, REGEX=regex, preserve_null=preserve_null, escape=escape, fold_case=fold_case)
endif
;
if ARG_PRESENT(count) then begin
if (short_cut EQ 1) then begin
count=0
endif else begin
count=N_ELEMENTS(resu)
endelse
endif
;
if KEYWORD_SET(test) then STOP
;
if (SIZE(resu,/type) NE 7) then begin
resu=LONG(resu)
endif else begin
;; when we have a non null (not '') string singleton
;; we must return an array
if (SIZE(resu,/n_dim) EQ 0) then begin
if (STRLEN(resu) GT 0) then resu=REFORM(resu,1)
endif
endelse
;
if KEYWORD_SET(test) then STOP
;
return, resu
;
end
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