RE : [fpc-pascal] WideString and TRegexpr

2011-12-04 Thread Ludo Brands
  Reported as issue 0020806. I'm not able to test using a 
 recent Delphi, 
  or on a 64-bit CPU.
 
 I think you could report directly to sorokin too. If he fixes 
 it, then we can merge the fix here.
 
 regexpr is a nearly unchanged copy from sorokin, except for 
 the alignment patch which I have sent to sorokin.
 

Patch attached to issue. A case of a calling move() with number of chars
instead of bytes.

Ludo

___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/mailman/listinfo/fpc-pascal


Re: [fpc-pascal] WideString and TRegexpr

2011-12-03 Thread Mark Morgan Lloyd

Mark Morgan Lloyd wrote:
Has anybody with experience of WideStrings tried compiling the new 
Regexpr unit to support them?


I'm in a position where I could very much benefit from using these, but 
I think that I'm only seeing patterns match for characters = #$00ff and 
even then am not seeing the match strings returned.


This appears to be an endianness issue: on a little-endian system 
(including x86) the Match[] entries only contain the LS byte of a 
widechar and on a big-endian system (incluing PPC) they only contain the 
MS byte. Practical result is that things look OK on x86 until the match 
contains a value  #$00ff.


I'm putting test data together for various CPUs and will raise a bug.

--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/mailman/listinfo/fpc-pascal


Re: [fpc-pascal] WideString and TRegexpr

2011-12-03 Thread Frank Church
On 3 December 2011 16:29, Felipe Monteiro de Carvalho 
felipemonteiro.carva...@gmail.com wrote:

 I have no idea about your question, but it might be interresting for
 you to know, just in case you already don't, the wiki page about the
 new Regexpr in FPC: http://wiki.lazarus.freepascal.org/Regexpr

   It almost works: Exec() is OK (at least with trunk, I might have seen a
 problem with a version a few weeks old) but Match[] isn't.

 That code does not change so often: Last commit in regexpr.pas 3 months
 ago:

 http://svn.freepascal.org/cgi-bin/viewvc.cgi/trunk/packages/regexpr/src/

 --
 Felipe Monteiro de Carvalho
 ___
 fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
 http://lists.freepascal.org/mailman/listinfo/fpc-pascal


I think the wiki entry should contain some more info about the Sorokin
regexpr and a link to http://regexpstudio.com/.

There isn't much info about regular expressions on the wiki itself

-- 
Frank Church

===
http://devblog.brahmancreations.com
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/mailman/listinfo/fpc-pascal

Re: [fpc-pascal] WideString and TRegexpr

2011-12-03 Thread Mark Morgan Lloyd

Felipe Monteiro de Carvalho wrote:

I have no idea about your question, but it might be interresting for
you to know, just in case you already don't, the wiki page about the
new Regexpr in FPC: http://wiki.lazarus.freepascal.org/Regexpr


 It almost works: Exec() is OK (at least with trunk, I might have seen a 
problem with a version a few weeks old) but Match[] isn't.


That code does not change so often: Last commit in regexpr.pas 3 months ago:

http://svn.freepascal.org/cgi-bin/viewvc.cgi/trunk/packages/regexpr/src/


Almost certainly an endianness issue, since ARM behaves the same as x86 
(and SPARC behaves the same as PPC).


Reported as issue 0020806. I'm not able to test using a recent Delphi, 
or on a 64-bit CPU.


--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]
___
fpc-pascal maillist  -  fpc-pascal@lists.freepascal.org
http://lists.freepascal.org/mailman/listinfo/fpc-pascal