Re: lex - how to get current file position of parser file

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From	Gene Wirchenko <genew@telus.net>
Newsgroups	comp.compilers
Subject	Re: lex - how to get current file position of parser file
Date	Thu, 03 Sep 2015 18:19:01 -0700
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On Tue, 1 Sep 2015 14:19:33 +0000 (UTC), Kaz Kylheku <kaz@kylheku.com>
wrote:

>On 2015-09-01, Jens Kallup <jkallup@web.de> wrote:
>> Hello,
>>
>> I used flex, and bison under Linux.  But how can I handle multiple
>> input files?  When I follow the examples of the documentation, I fail
>> to handle tokens after include file.
>>
>> Example:
>>
>> PRINT "Before"
>> SET PROCEDURE TO testproc
>> PRINT "After"
>
>> this is a abstract language, which does (should) open a file called
>> "testproc".
>
>I think that in a dBase-type language, SET PROCEDURE doesn't necessarily have
>to open the file at parse time. According to current documentation that

     It does not have to, but if compiling a project, it will be
compiled as well.

>I'm able to find, it's actually become a complex module-loading command, and
>not parse-time textual inclusion. It can load compiled files, not only text,

     Yes.

>and cause non-persistent files to be unloaded. Loaded files have a refcount so
>that if you invoke SET PROCEDURE on some file N times, you have to CLOSE
>PROCEDURE that many times before it is unloaded.

     No.  At least, this is not the case in Microsoft Visual FoxPro
9.0.  You can not add a procedure file more than once.  If you do, it
is just ignored.  I tried using just the filename and then with the
path.  The two were recognised as being the same.  And, yes, I was
using the ADDITIVE keyword.  CLOSE PROCEDURE releases *all* of the
procedure files.


     SET PROCEDURE's exact meaning is determined by file contents at
run-time.

[snip]

Sincerely,

Gene Wirchenko

Thread

lex - how to get current file position of parser file Jens Kallup <jkallup@web.de> - 2015-09-01 04:20 +0200
  Re: lex - how to get current file position of parser file Kaz Kylheku <kaz@kylheku.com> - 2015-09-01 14:19 +0000
    Re: lex - how to get current file position of parser file federation2005@netzero.com - 2015-09-03 15:47 -0700
      Re: include files, was lex - how to get current file position of parser file Kaz Kylheku <kaz@kylheku.com> - 2015-09-04 05:26 +0000
    Re: lex - how to get current file position of parser file Gene Wirchenko <genew@telus.net> - 2015-09-03 18:19 -0700
      Re: lex - how to get current file position of parser file Jens Kallup <jkallup@web.de> - 2015-09-06 21:53 +0200
        Re: lex - how to get current file position of parser file Kaz Kylheku <kaz@kylheku.com> - 2015-09-07 05:59 +0000
    Re: lex - how to get current file position of parser file Jens Kallup <jkallup@web.de> - 2015-09-07 17:11 +0200

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