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Forum Index : Microcontroller and PC projects : [PicoMite] DIR$() Missing dots

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twofingers

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Joined: 02/06/2014
Location: Germany
Posts: 1654

Posted: 05:52pm 19 Mar 2024

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Hi, I would like to know whether the removal of the "dots" from the Dir$("*",DIR) function is intended in the newer (> 5.07) firmware versions.

'************ testdir$ *********
Print "MMBasic version:" MM.Ver
Print "--------------------------------"
DirName$= Dir$("*", Dir)
Print DirName$

Do While DirName$<>""
DirName$ = Dir$()
If DirName$<>"" Then Print DirName$
loop

Print "--------------------------------"

Output for MMBasic version: 5.0706

MMBasic version: 5.0706
--------------------------------
.
..
nsa
--------------------------------

Output for MMBasic version: 5.09

MMBasic version: 5.090006
--------------------------------
nsa
--------------------------------

What happened to the dots and if so why?

I think this doesn't make Picomites more compatible with other previous MMBasic versions.

Regards
Michael
Edited 2024-03-20 03:53 by twofingers

causality ≠ correlation ≠ coincidence

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10538

Posted: 09:06am 20 Mar 2024

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FatFS is used for the SDcard system and does not return these when asked to return directories. In order to maintain compatibility between the A: and B: drives I have suppressed them for the "A:" drive. This is inline with other MMbasic variants (just confirmed on CMM2). Earlier versions of the PicoMite firmware were out of line for the A: drive

if (lfs_info_dir.type & (LFS_TYPE_REG | LFS_TYPE_DIR) && pattern_matching(pp, lfs_info_dir.name, 0, 0) && !(strcmp(lfs_info_dir.name,".")==0 || strcmp(lfs_info_dir.name,"..")==0 )){

Edited 2024-03-20 19:11 by matherp

twofingers

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Joined: 02/06/2014
Location: Germany
Posts: 1654

Posted: 04:53pm 20 Mar 2024

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Thank you very much!
It's to bad, I've gotten used to it for 40 years.

For me it was very surprising. I don't have an SD drive on the Picomite and I hadn't noticed it on the CMM2 until now. A note in the manual could be useful.
A workaround should be easy to do.

Regards
Michael

causality ≠ correlation ≠ coincidence

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