Re: [Nolug] test

Actually, I think I have the working regex string now..... But I still
wanted to try to clarify a bit....

My "needles" in real life are like these (though there are about 2000 of
them)

sgh%a200
lg%500
uts%7126
sgh%a706
amoi%100
sgh%l1300

Then my haystack could be

UTS-7126M/1.0 UP.Browser/6.3.0.7 (GUI) MMP/2.0
or
SAMSUNG-SGH-A706/1.0 SHP/VPP/R5 NetFront/3.3 SMM-MMS/1.2.0
profile/MIDP-2.0 configuration/CLDC-1.1
or something similar....

I need to match from the list of needles to the haystack, and the first
match, I'll break the process and I have my needed values.
In the current list of needles, there are 2 matches, one for each of the
presented haystacks.

Petri

Louis.Ross@selu.edu wrote:
> Now that I "think" I understand what you are trying to do, using a "back reference" is called for, if you don't know what the string preceding the part to be matched. If you are only trying to return match for a but not h(or whatever)
> different test strings try one at a time:
> //$test_string = "dsegft a706"; or
> $test_string = "abc-h706";
>
> preg_match('/^(.+)(\w)706(.*)$/',"$test_string",$group);
> if ($group[2] == 'h') echo "h";
> if ($group[2] == 'a') echo "a";
>
> with $group[2] representing the (\w) preceding the 706, apparently back references in regex start at 1 and not 0
>
> ^ any stuff, the word char in question, 706, anything or not $
>
> Good Luck!
> Guy Ross
>
>
>
> On Wednesday, June 10, 2009 10:51 PM, Petri Laihonen wrote:
>
>> Date: Wed, 10 Jun 2009 22:51:24 -0500
>> From: Petri Laihonen
>> To: nolug@nolug.org
>> cc:
>> Subject: Re: [Nolug] test
>>
>> I don't know whether or not the % should be replaced by ' - '.
>> Most likely, and in most cases this would be true, but there could also
>> be space, or something else. If I could simply just replace the '%' with
>> '-', I would not have any problems. then I could just do simply
>> if (stripos('ABC-A706','model-abc-a706/ software version 0.3 /sumptin
>> else') !== FALSE); // match
>> if (stripos('ABC-A706','model-abc-h706/ software version 0.3 /sumptin
>> else') !== FALSE); // no match
>> Note! Strangely '=== TRUE' does not seem to be working as well as '!==
>> FALSE'
>>
>> Also, I think [abc|ABC] would limit the characters into 'abc' or 'ABC'.
>> In real life they are definitely something else, and will vary.
>>
>>
>> I tried to test the strings and minor modifications here,
>> http://www.regextester.com/.
>> Apparently I don't know how to use it as nothing appears to be matching.....
>>
>> Well... Gotta whip up the PHP test script ... :-)
>>
>> Petri
>>
>>
>> Louis.Ross@selu.edu wrote:
>>
>>> why not literally use the '-' in between?
>>> /^(.+)[abc|ABC]-[a|A]706(.*)$/
>>> /^(.+)[abc|ABC]\-[a|A]706(.*)$/
>>>
>>> (I'm not sure the - may have to be escaped by a \slash, try it both ways)
>>> this also says lower or uppercase "abc" and lower or uppercase 'a'
>>> Guy
>>> On Wednesday, June 10, 2009 10:27 PM, Petri Laihonen wrote:
>>>
>>>
>>>> Date: Wed, 10 Jun 2009 22:27:56 -0500
>>>> From: Petri Laihonen
>>>> To: nolug@nolug.org
>>>> cc:
>>>> Subject: Re: [Nolug] test
>>>>
>>>> OK... Trying to learn something here.... I've read today from here and
>>>> there, a dot is the "universal" match-all, though should be used cautiously.
>>>> Some of my attempts to form the regex expression involved square
>>>> brackets []... apparently those are not needed.
>>>>
>>>> Now if I want to match with 2 parts of the original string.....
>>>>
>>>> How does this look like?
>>>> /^(.+)abc(.)a706(.+)$/
>>>>
>>>> Petri
>>>>
>>>>
>>>>
>>>> Louis.Ross@selu.edu wrote:
>>>>
>>>>
>>>>> try
>>>>> /^(.+)a706(.+)$/
>>>>> starts with one or more of any character followed by literally 'a706'
>>>>> or
>>>>>
>>>>>
>>>>> preg_match('/^(.+)a706\/(.+)\/(.+)$/',"$test_string");
>>>>>
>>>>> starts with one or more of any character followed by literally 'a706' and then /, more chars, /,more chars at the end of the string
>>>>>
>>>>>
>>>>> returns boolean true if $test_string contains 'a706' in the specified position
>>>>> also
>>>>> $1 == 'model-abc-';
>>>>> $2 == 'software version 0.3';
>>>>> $3 == 'sumptin else';
>>>>> will return true
>>>>>
>>>>> That's all I got, there's more ways to skin that cat for sure.
>>>>>
>>>>> Guy Ross
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Wednesday, June 10, 2009 9:16 PM, Chris Jones wrote:
>>>>>
>>>>>
>>>>>
>>>>>> Date: Wed, 10 Jun 2009 21:16:39 -0500
>>>>>> From: Chris Jones
>>>>>> To: nolug@nolug.org
>>>>>> cc:
>>>>>> Subject: Re: [Nolug] test
>>>>>>
>>>>>> Generally, regex's are more picky than that. A isn't going to match
>>>>>> a, plus all those characters before and after the regex have to be
>>>>>> matched wtih a wildcard. It really depends on what you're trying to
>>>>>> do that determines the right approach.
>>>>>>
>>>>>> On Wed, Jun 10, 2009 at 7:06 PM, Petri Laihonen<pietu@weblizards.net> wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Tried to send again, but for some reason this post does not appear in the
>>>>>>> nolug list.
>>>>>>> Therefore, since my reply to "test" appeared, perhaps this one does too.
>>>>>>>
>>>>>>>
>>>>>>> Orig Subject: Regex help needed
>>>>>>>
>>>>>>> Do we have any regex geniuses on the wire?
>>>>>>>
>>>>>>> I've heard regular expressions are powerful thing....... I agree ....they
>>>>>>> are very powerful driving you nuts trying to figure them out.....
>>>>>>>
>>>>>>> I'm trying to match 2 strings together.... (Will use in a PHP environment)
>>>>>>> String 1: "ABC%A706" (Where % is a wildcard, thus should match to any
>>>>>>> character)
>>>>>>> String 2: "
>>>>>>>
>>>>>>>
>>>>>>>
>>>>> a706/ software version 0.3 /sumptin else"
>>>>>
>>>>>
>>>>>
>>>>>>> String 3: "model-abc-h706/ software version 0.3 /sumptin else"
>>>>>>>
>>>>>>>
>>>>>>> With the above strings, 1 and 2 would be match, but 1 and 3 are not.
>>>>>>>
>>>>>>> In other words, anything before, on the % sign, and after the string 1
>>>>>>> is OK. As long as portions "abc" and "a706" are found from the longer
>>>>>>> string with only one character, ....any character in between them.
>>>>>>>
>>>>>>> Any hints?
>>>>>>>
>>>>>>> Petri
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Joey Kelly wrote:
>>>>>>>
>>>>>>>
>>>>>>> --
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>>>>>>>
>>>>>> --
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>>>>>> http://www.doomsdaytechnologies.com
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