On 08/19/2018 08:36 AM, tomas@tuxteam.de wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sun, Aug 19, 2018 at 08:00:31AM -0500, Richard Owlett wrote:I've installed yabasic from the repository. I invoked as:> richard@debian-jan13:~$richard@debian-jan13:~$ yabasic This is yabasic version 2.78.0, built on i686-pc-linux-gnu at Mon Jan 23 14:17:02 UTC 2017My code fragment is:infile$ = "/home/richard/Documents/cherrytree/edit_bookmarks/expermental_copies/prettytest0txt" outfile$ = "/home/richard/Documents/cherrytree/edit_bookmarks/expermental_copies/1stpass.txt" fd_in=open("/home/richard/Documents/cherrytree/edit_bookmarks/expermental_copies/prettytest0txt","r") print peek$("error") fd_out = open(outfile$,"w") print peek$("error")For both print peek$("error") I'm told "No such file or directory". The file to be read EXISTS and belongs to "richard"Most people here won't know what 'print' and 'peek' do. Things you might want to check: - is yabasic trying to interpret print's first argument (i.e. those pesky 'peek()' as some kind of file descriptor or name where to print to?
According to the manual, "peek$("error")" is explicitly for diagnosing problems when opening a file.
- try running your program under strace: there you'll see which
system calls are being issued, and perhaps gain some insight
on where this "No such file..." (ENOENT) really happens and
what argument values are being passed to the system call.
(as a very short intro:
strace -o <my/trace/file/name> yabasic
[do your thing]
[exit]
[go carefully with a pitchfork through your trace file
looking out for your file names and for ENOENT]
Holler here if you need help with strace. It's a handy tool
in any hacker's toolbox.
Didn't know of strace. Just glanced at manpage. On my way out - pursue this afternoon.
I tried to look up their online documentation, but it's one of those stupid javascript-only sites, and I tend to avoid that. Attention economy? I can play that: they won't get mine.
So somebody agrees with me. A well done HTML manual is in the Debian package. Thanks
Cheers - -- t -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlt5cmQACgkQBcgs9XrR2kYdwgCaAyvOm44ZmYkfmQsyBH7DOVbn d4UAn3bJsq1dEoYlBdWpbAeLJ+ttbp7F =jkYQ -----END PGP SIGNATURE-----