Re: [pcre-dev] Fix for newline error

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Author: Sheri
Date:  
To: Herczeg Zoltán
CC: pcre-dev@exim.org
Subject: Re: [pcre-dev] Fix for newline error
Hi Herczeg,

When I tried building static libraries I encountered a problem building
pcre_jit_test, because on Windows, PCRE_STATIC must be defined before
including pcre.h

I think in order to ensure that PCRE_STATIC gets defined or not as
appropriate for the configuration, the pcre_jit_test program should
include config.h

Regards,
Sheri

On 9/14/2011 6:58 PM, Sheri wrote:
> Yes! when patched RunTest succeeds fully when run in the Unix-like
> Msys console.
>
> Regards,
> Sheri
>
> On 9/14/2011 5:37 PM, Herczeg Zoltán wrote:
>> Hi All,
>>
>> After some thinking I feel I found the issue. CMakeLists.txt revealed
>> that NEWLINE can be -1 or -2, which are special constants for ANY and
>> ANYCRLF, not a plain newline code. During the debugging the newline
>> was compared to -2, which is obviously failed.
>>
>> My code was:
>>
>> switch(re->options&  PCRE_NEWLINE_BITS)
>>    {
>>    case 0: common->newline = NEWLINE; break;   /* Compile-time 
>> default */
>>    ...
>>    }

>>
>> This is wrong. I need to check the NEWLINE constant first, whether it
>> contains -1 or -2, and not simply assign it to a value.
>>
>> A fix is attached to this mail. It is compressed to avoid newline
>> issues xD
>>
>> Sheri could you try it on your machine?
>>
>> Thanks,
>> Zoltan
>>
>> "Herczeg Zoltán"<hzmester@???> írta:
>>> Hi Sheri,>
>>>
>> I did some assembly level debugging and I had an impression that 
>> something might be wrong with the NEWLINE macro.>
>> I have added some debug printf-s to the pcre_jit_compile.c. Could you 
>> compile the reduced pcre_jit_test program again with this debug 
>> compiler and send me the output?>
>> Thanks in advance,>
>> Zoltan>
>> Sheri<silvermoonwoman@???>  írta:>
>>> On 9/14/2011 1:50 PM, Herczeg Zoltán wrote:>>
>>> Hi Sheri,>>
>>> I agree something messed up with new line recognizing. The failing 
>>> native pcre_jit_test test is also newline related. I made a simple 
>>> test case for you, attached to this mail. Please replace the 
>>> original pcre_jit_test.c, and compile this new one. Please compile 
>>> it as a standalone, debug binary and send it to me so I can do the 
>>> debugging myself.>>
>> I tried to do that, copied in your new source and elected static debug>>
>> and other options. I had to add #define PCRE_STATIC before your 
>> includes>>
>> to get it build. There is some discussion about PCRE_STATIC in 
>> pcredemo.c>>
>> After that change it built ok. A zip of the exe is attached. FYI, the>>
>> corresponding pcretest program reports the following:>>
>> >  pcretest -C>>
>> PCRE version 8.20-RC1 2011-09-12>>
>> Compiled with>>
>>     UTF-8 support>>
>>     Unicode properties support>>
>>     Just-in-time compiler support>>
>>     Newline sequence is ANYCRLF>>
>>     \R matches CR, LF, or CRLF only>>
>>     Internal link size = 2>>
>>     POSIX malloc threshold = 10>>
>>     Default match limit = 10000000>>
>>     Default recursion depth limit = 10000000>>
>>     Match recursion uses heap>>

>>>>
>> The following case is strange to me:>>
>>      re>   /^abc$/mS>>>
>> data>   abc\nzzz>>>
>> No match>>>
>> It should study the pattern but should not do any JIT compiling.>>
>> But since the JIT compiling has already been done, it must have used 
>> it.>>
>> It started with a clean slate once pcretest was restarted.>>

>>>>
>