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Re^10: Weird error log message

by Nik
on Jun 16, 2009 at 07:47 UTC ( #771922=note: print w/ replies, xml ) Need Help??


in reply to Re^9: Weird error log message
in thread Weird error log message

Thank you for this info and as you saw in the other forum i was the one that accidentally found this out, after noticing the encoding of the ax2.pl file the helper upload it for mw that worked. Thanks celaring this out for me though.

I didnt knew that before the shebang line i should have used '#!'. Isnt it enough that it has it in the shebang line as well '#!/usr/bin/perl' ? i tried clciking the link with BOM but it wont load so i still dont know what BOM is and why the webserver on the remote server won't understand it since it runs apche while locally my apache web server does not care as to what encoding i save the file. Works with/withoiut BOM utf8 or as ansi.

You say that if my script is UTF-8 i probablt have to use use utf8; What do you mena by that? When a script source is considered to be utf-8? I must tell you though that inside my perl scripts i use greek text.


Comment on Re^10: Weird error log message
Re^11: Weird error log message
by Anonymous Monk on Jun 16, 2009 at 07:52 UTC
Re^11: Weird error log message
by ikegami (Pope) on Jun 16, 2009 at 13:35 UTC

    Isnt it enough that it has it in the shebang line as well '#!/usr/bin/perl' ?

    What's "it"?, the "#!"? No. When I said it has to be the very first thing in the file, I meant it has to be the very first thing in the file.

    $ od -c a.pl 0000000 357 273 277 # ! / u s r / b i n / p +e 0000020 r l \n p r i n t ( " H e l l o 0000040 W o r l d \ n " ) ; \n \n 0000054 $ a.pl -bash: ./a.pl: cannot execute binary file $ perl -i.bak -ple"s/^\xEF\xBB\xBF// if $.==1" a.pl $ od -c a.pl 0000000 # ! / u s r / b i n / p e r l \ +n 0000020 p r i n t ( " H e l l o W o +r 0000040 l d \ n " ) ; \n \n 0000051 $ perl a.pl Hello World

    i tried clciking the link with BOM but it wont load

    It's the Wikipedia page on "byte-order mark". I don't see why you couldn't load it.

    When a script source is considered to be utf-8?

    Either it is or it isn't. There's no "considered" about it. If you saved it using UTF-8 as the encoding, it's UTF-8. If you used another encoding, it isnt.

    But yes, I meant when the source is UTF-8.

    Perl will assume the source is encoded using iso-8859-1 unless use utf8; is used.

      Thanks i can see the 1st 3 bytes if BOM is used. Still the link is disfunctional and i dont know why BOM is used.

      i try using
      #! #!/usr/bin/perl -w
      and
      #!/usr/bin/perl -w use utf8;
      and save my script with the use of Notepad++ with utf8 encoding, but when i upload it wont run. why?

      Also in my scripts aprt from the perl syntax i use greek characatets. does that mean that i have to save my scripts in utf8 encoding or ansi? What iam trying to say here is based on what criteria should i choose as to what encoding i must pick for saving my perl scripts? Why ut8? why utf8 without Bom? why ansi? is there a reason? Why locally all encodings work and remotely only ansi does?

        save my script with the use of Notepad++ with utf8 encoding, but when i upload it wont run. why?

        Already answered

        [ Oops, posted too soon by accident, so I'll post the rest here ]

        Still the link is disfunctional

        No. Like i already said, your end is what's dysfunctional. There's a whole web out there to google, so no excuse.

        Also in my scripts aprt from the perl syntax i use greek characatets. does that mean that i have to save my scripts in utf8 encoding or ansi?

        ANSI is not a specific encoding. It's Windows terminology to use the local encoding, for some definition of local.

        But it's moot. Unless you use the broken/weird use encoding, Perl only understands iso-8859-1 (use utf8; off) and UTF-8 (use utf8; on).

        iso-8859-1 doesn't support greek characters, so that leaves UTF-8.

        why utf8 without Bom?

        U+FEFF is only a BOM if it's the very first character of a file. (It's a zero-width no-break space elsewhere.)

        #! is only a shebang if it's the very first characters of a file.

        That means you can only use one or the other.

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