| Re: file_search problem [message #92356 is a reply to message #92355] |
Wed, 25 November 2015 12:38  |
greg.addr
Messages: 160
Registered: May 2007
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Senior Member |
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On Wednesday, November 25, 2015 at 6:05:54 PM UTC+1, Heinz Stege wrote:
> On Wed, 25 Nov 2015 07:58:07 -0800 (PST), fawltylanguage
> wrote:
>
>> On Wednesday, November 25, 2015 at 4:45:37 PM UTC+1, Jim P wrote:
>>>
>>> A substantial amount of work was put into I18N a few releases ago, but it looks like this is a special case.
>>>
>>> Interesting...
>>>
>>> IDL> print, byte('î')
>>> 238
>>> IDL> print, string(238b)
>>> î
>>>
>>> ...however,
>>>
>>> IDL> print, byte('a')
>>> 97
>>> IDL> print, string(97b)
>>> a
>>>
>>> Jim P.
>>
>> I think the first one is in extended ASCII (0-255) and the second one is a true Unicode character.
>
> Let me add, that this conversion seems to take place during string
> input. No conversion happens, if the string "is really UTF-8":
>
> IDL> a=['C3'xb,'AE'xb]
> IDL> print,a
> 195 174
> IDL> print,string(a)
> î
> IDL> print,byte(string(a))
> 195 174
> IDL> b=['C4'xb,'83'xb]
> IDL> print,string(b)
> a
> IDL> print,byte(string(b))
> 196 131
>
> I hope, my news agent will choose the correct charset (UTF-8)! I'm not
> sure.
>
> Cheers, Heinz
Thanks, everyone, for the comments. I've found that the same does happen for other non-ascii characters (Polish, this time):
Directory of D:\tmp\test
25/11/2015 21:05 <DIR> .
25/11/2015 21:05 <DIR> ..
25/11/2015 09:31 0 în.txt
25/11/2015 09:31 0 ă.txt
25/11/2015 21:04 0 ą.txt
25/11/2015 21:04 0 ł.txt
4 File(s) 0 bytes
file_search gives:
IDL> file_search("d:\tmp\test\","*.*")
D:\tmp\test\în.txt
and findfile gives:
IDL> findfile("d:\tmp\test\*.txt")
d:\tmp\test\în.txt
d:\tmp\test\a.txt
d:\tmp\test\a.txt
d:\tmp\test\l.txt
So findfile sees the files, although the extended characters are simplified. However, the files are not identifiable through the simplified names:
IDL> a=findfile("d:\tmp\test\*.txt")
IDL> print,(file_info(a[3])).exists
0
This doesn't work either...
IDL> spawn,"dir /b /s d:\tmp\test\*.txt",res,err
IDL> res
d:\tmp\test\Œn.txt
d:\tmp\test\a.txt
d:\tmp\test\a.txt
d:\tmp\test\l.txt
And surprisingly (to me!), even this fails:
IDL> spawn,"dir /b /s *.txt >dir.txt",res,err
...with dir.txt containing the same
d:\tmp\test\Œn.txt
d:\tmp\test\a.txt
d:\tmp\test\a.txt
d:\tmp\test\l.txt
which is not the fault of IDL.
cheers,
Greg
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