Re: [Nolug] test

 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:
>>>>>>
>>>>>>
>>>>>> --
>>>>>> This message has been scanned for viruses and
>>>>>> dangerous content by MailScanner, and is
>>>>>> believed to be clean.
>>>>>>
>>>>>> ___________________
>>>>>> Nolug mailing list
>>>>>> nolug@nolug.org
>>>>>>
>>>>>>
>>>>>>
>>>>> --
>>>>> Chris Jones
>>>>> http://www.doomsdaytechnologies.com
>>>>> ___________________
>>>>> Nolug mailing list
>>>>> nolug@nolug.org
>>>>>
>>>>>
>>>>
>>>> ___________________
>>>> Nolug mailing list
>>>> nolug@nolug.org
>>>>
>>>>
>>>>
>>> --
>>> This message has been scanned for viruses and
>>> dangerous content by MailScanner, and is
>>> believed to be clean.
>>>
>>> ___________________
>>> Nolug mailing list
>>> nolug@nolug.org
>>>
>>
>>
>>
>> ___________________
>> Nolug mailing list
>> nolug@nolug.org
>>
>>
>
>--
>This message has been scanned for viruses and
>dangerous content by MailScanner, and is
>believed to be clean.
>
>___________________
>Nolug mailing list
>nolug@nolug.org

___________________
Nolug mailing list
nolug@nolug.org
Received on 06/11/09