[PHP] Re: regexp novice

[Jim Giner]

OOPS
FORGOT to mention that I modify the string to add a colon if it is entered 
without one, so my regexp
always expects a : to be in the middle.  So in actuality - my regexp is 
'passing' a value of 13:00 as legitimate, when it should not be.



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[PHP] Re: regexp questions

[Al]

Get a copy of http://www.weitz.de/regex-coach/ and contribute.

Use the pattern on your string, one section at a time.

On 5/10/2010 7:53 PM, Spud. Ivan. wrote:



Hi,

I've recently changed from php 5.1 to 5.3.2 and I'm havong problems with 
preg_match, because the same regular expressions used in php 5.1 are not 
matching anything in 5.3.2.

There are any significant changes that I should know?

I've been searching but I haven't found anything.

Thanks.
I.Lopez.


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Re: [PHP] Re: regexp questions

[shiplu]

I think the error is related to changed described here.
http://www.pcre.org/changelog.txt

Shiplu Mokadd.im
My talks, http://talk.cmyweb.net
Follow me, http://twitter.com/shiplu
SUST Programmers, http://groups.google.com/group/p2psust
Innovation distinguishes bet ... ... (ask Steve Jobs the rest)

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Re: [PHP] Re: regexp questions

[Ashley Sheridan]

On Tue, 2010-05-11 at 23:29 +0700, shiplu wrote:

 I think the error is related to changed described here.
 http://www.pcre.org/changelog.txt
 
 Shiplu Mokadd.im
 My talks, http://talk.cmyweb.net
 Follow me, http://twitter.com/shiplu
 SUST Programmers, http://groups.google.com/group/p2psust
 Innovation distinguishes bet ... ... (ask Steve Jobs the rest)
 


That's quite a long document, care to narrow it down slightly? :p

Thanks,
Ash
http://www.ashleysheridan.co.uk

Re: [PHP] Re: regexp questions

[shiplu]

oops!
Please see the change log for version 8.00 on
http://www.pcre.org/changelog.txt

Shiplu Mokadd.im
My talks, http://talk.cmyweb.net
Follow me, http://twitter.com/shiplu
SUST Programmers, http://groups.google.com/group/p2psust
Innovation distinguishes bet ... ... (ask Steve Jobs the rest)

[PHP] Re: RegExp for preg_split()

[Rafael]

Try this (don't pay attention to the name):
  /**
   * @param string  $text
   * @returnarray
   * @since Sat Apr 29 01:35:37 CDT 2006
   * @authorrsalazar
   */
  function parse_phrases( $text ) {
  $arr_pzas = array();
  if ( preg_match_all('/(?(?=[\'])([\']).+?\\1|\w+)/X',
  $text, $arr_pzas) ) {
  $arr_pzas = $arr_pzas[0];
  }
  return  $arr_pzas;
  } // parse_phrases()

Weber Sites LTD wrote:

Hi
 
I'm looking for the RegExp that will split a search string into search

keywords.
while taking   into account.
 
From what I managed to find I can get all of the words into an array but I
would 
like all of the words inside   to be in the same array cell.

--
Atentamente,
J. Rafael Salazar Magaña
Innox - Innovación Inteligente
Tel: +52 (33) 3615 5348 ext. 205 / 01 800 2-SOFTWARE
http://www.innox.com.mx

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[PHP] Re: regexp appears to be faulty (DONT actually think so)

[Henry Grech-Cini]

Hi All,

I don't actually think regexp is fault. But if anyone could explain this or
give me some example code that will extract the attributes and data between
a fieldset tag pair I would be appreciated.

Henry

Henry Grech-Cini [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
 Hi All,

 function extractFieldsets($subject)
 {
$regexp=/fieldset([^]*)[^(\/fieldset)]*/i;
$replacement;
$matches=array();

preg_match_all($regexp, $subject, $matches);

return ($matches);
 }

 $result=extractFieldsets('testfieldset attribute=hellocontent of
 hello/fieldsetemblah/emfieldset
 attribute=goodbyegoodbye/fieldset');
 echo br/;
 foreach($result as $key=$string)
 {
echo (.$key.)=.br/;
foreach($string as $subkey=$subres)
 echo(.$subkey.)=[.htmlspecialchars($subres).]br/;
echo br/;
 }

 And it produced;

 (0)=
 (0)=[fieldset attribute=hellocon]
 (1)=[fieldset attribute=goodbyegoo]

 (1)=
 (0)=[ attribute=hello]
 (1)=[ attribute=goodbye]

 Why did it get three letters after the end of the fieldset tag

 con and goo.

 Any pointers?

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[PHP] Re: regexp appears to be faulty (DONT actually think so)

[Sven]

Henry Grech-Cini schrieb:
...
  $regexp=/fieldset([^]*)[^(\/fieldset)]*/i;
...
$result=extractFieldsets('testfieldset attribute=hellocontent of
hello/fieldsetemblah/emfieldset
attribute=goodbyegoodbye/fieldset');
...
And it produced;
(0)=
(0)=[fieldset attribute=hellocon]
(1)=[fieldset attribute=goodbyegoo]
(1)=
(0)=[ attribute=hello]
(1)=[ attribute=goodbye]
hi,

as it is defined in regex-spec: a '^' inside a char-group '[...]' 
defines all chars, that aren't allowed, and not a string!

so the first 't' of 'content' and the 'd' of 'goodbye' don't match your 
regex anymore.

a start for a solution could be:

?php
$rx = '/fieldset[^]*(.*)\/fieldset/i';
?
if you want to take care of your fieldset-attribs in your result, you 
can set your brackets again: ([^]*)

some probs i can think of are nested fieldsets inside fieldsets (don't 
know by head, if this is allowed by w3). and another prob: is that you 
don't catch multiple fieldsets after another. i think there is a switch, 
that catches only the least result.

hth SVEN

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[PHP] Re: regexp appears to be faulty (DONT actually think so)

[Henry Grech-Cini]

Thanks Sven,

You are quite right with your some probs comment.

Do you know what the the switch is that catches only the least result?

I now get

(0)=
(0)=[fieldset attribute=hellolegendhello legend/legendcontent of
hello/fieldsetemblah/emfieldset
attribute=goodbyegoodbye/fieldset]

(1)=
(0)=[ attribute=hello]

(2)=
(0)=[legendhello legend/legendcontent of
hello/fieldsetemblah/emfieldset attribute=goodbyegoodbye]

as we can see the second fieldset is included in that which is between the
fieldset tags!

:-(

Thanks everyone for you help including Mike (with the post out of chain).

Henry

Sven [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED]
 Henry Grech-Cini schrieb:
 ...
$regexp=/fieldset([^]*)[^(\/fieldset)]*/i;
 ...
 $result=extractFieldsets('testfieldset attribute=hellocontent of
 hello/fieldsetemblah/emfieldset
 attribute=goodbyegoodbye/fieldset');
 ...
 And it produced;
 (0)=
 (0)=[fieldset attribute=hellocon]
 (1)=[fieldset attribute=goodbyegoo]
 (1)=
 (0)=[ attribute=hello]
 (1)=[ attribute=goodbye]

 hi,

 as it is defined in regex-spec: a '^' inside a char-group '[...]'
 defines all chars, that aren't allowed, and not a string!

 so the first 't' of 'content' and the 'd' of 'goodbye' don't match your
 regex anymore.

 a start for a solution could be:

 ?php
  $rx = '/fieldset[^]*(.*)\/fieldset/i';
 ?

 if you want to take care of your fieldset-attribs in your result, you
 can set your brackets again: ([^]*)

 some probs i can think of are nested fieldsets inside fieldsets (don't
 know by head, if this is allowed by w3). and another prob: is that you
 don't catch multiple fieldsets after another. i think there is a switch,
 that catches only the least result.

 hth SVEN

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[PHP] Re: regexp appears to be faulty!?

[Henry Grech-Cini]

I came accross this link

a href=
http://www.alpha-geek.com/2003/12/31/do_not_do_not_parse_html_with_regexs.html

http://www.alpha-geek.com/2003/12/31/do_not_do_not_parse_html_with_regexs.html /a

Do we all agree or should I keep trying?

Henry

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[PHP] Re: regexp appears to be faulty (DONT actually think so)

[Sven]

Henry Grech-Cini schrieb:

Thanks Sven,

You are quite right with your some probs comment.
hi,

think i found it. try this:

?php
$rx = '/fieldset.*(.*)\/fieldset/iU';
?
the '/U' stands for 'ungreedy'. also note the change in the attribs-regex.

hth SVEN

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[PHP] Re: regexp appears to be faulty!?

[Sven]

Henry Grech-Cini schrieb:

I came accross this link

a href=
http://www.alpha-geek.com/2003/12/31/do_not_do_not_parse_html_with_regexs.html

http://www.alpha-geek.com/2003/12/31/do_not_do_not_parse_html_with_regexs.html /a
Do we all agree or should I keep trying?

Henry
hi henry,

this could be an interesting discussion. i think there can be a solution 
for every problem. it's only a question of the logic.

the main problem in this example are white spaces in every kind (space, 
tab, newline, carriage return, ...) and there are solutions in regex. a 
little example: '/( |\t|\n|\r)*/' checks optional white spaces
you can also give '\s*' a try (any whitespace char). maybe it also works 
with '\r\n'?

just some thoughts.

hth SVEN

ps: it surely is possible to ignore everything between 
'script/script', isn't it?

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Re: [PHP] Re: regexp appears to be faulty!?

[Adam Bregenzer]

On Tue, 2004-02-24 at 10:49, Henry Grech-Cini wrote:
 http://www.alpha-geek.com/2003/12/31/do_not_do_not_parse_html_with_regexs.html
 
 Do we all agree or should I keep trying?

The important thing to keep in mind here is to use the right tool for
the job.  If you are parsing an HTML document looking for tags,
attributes, etc. I do recommend using domxml/simplexml/some XML parsing
tool to get your job done quickly and cleanly.  However, if you have a
very specific need to extract some text from a string then you can
probably get away with regular expressions.  The big catch with regexp
is that it has a very low reuse value.  Generally regexps are difficult
to read and rarely will you just copy and pate a regular expression from
one piece of code to another.  If your regexp is growing beyond one line
and is taking a long time to process then it is time to move on.

Additionally, regular expressions are not good at providing context.  It
just so happens that HTML documents are just text documents so if you
can parse the text to get what you need great.  However, if you want to
move through the elements and attributes, you want something more
powerful, like XPath or XQuery. (ie. you want to find the third fieldset
child of the body element that has an attribute set to foo)

As a side note, that article has a link to a similar one that lists a
regexp based XML parser as the only PHP solution. :)

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[EMAIL PROTECTED]
http://adam.bregenzer.net/

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[PHP] Re: regexp: 'a correctly parenthesized substring advanced'

[Jaaboo]

I give an wrong example. Here is a better one

?php

$txt = func1($par1, 100 (euro), func2($par2,(c) by nobody));

if (preg_match_all('

/

([a-zA-Z]\w*?)

\s*

(

\(

(

(?.*?)|

.*?(?R)*

)

\)

)+

/x

', $txt, $m)){

print_r($m);

} else {

echo no match;

}

echo \n;



?

This must result in :

First call: func1($par1, 100 (euro), func2($par2,(c) by nobody))
Second call with the inner part $par1, 100 (euro), func2($par2,(c) by
nobody)
must result in : func2($par2,(c) by nobody)



Please visit www.regexp.org there is an open thread of this question.

thanx

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Re: [PHP] Re: regexp: 'a correctly parenthesized substring advanced'

[Marek Kilimajer]

Forget regexp and try this function:
http://sk.php.net/manual/en/function.token-get-all.php
Jaaboo wrote:

I give an wrong example. Here is a better one

?php

$txt = func1($par1, 100 (euro), func2($par2,(c) by nobody));

if (preg_match_all('

/

([a-zA-Z]\w*?)

\s*

(

\(

(

(?.*?)|

.*?(?R)*

)

\)

)+

/x

', $txt, $m)){

print_r($m);

} else {

echo no match;

}

echo \n;



?

This must result in :

First call: func1($par1, 100 (euro), func2($par2,(c) by nobody))
Second call with the inner part $par1, 100 (euro), func2($par2,(c) by
nobody)
must result in : func2($par2,(c) by nobody)


Please visit www.regexp.org there is an open thread of this question.

thanx

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Re: [PHP] Re: regexp: 'a correctly parenthesized substring advanced'

[Jaaboo]

hi marek,

thanx for your suggestion.
i have tried out the tokenizer but
1.  i think its not realy final and can change in the future
2. the tokenizer can only find real php code but i need to find my
simplified php code without an ; on the end of an statement for example.

so the tokenizer doesn't do my job. i'm not far from the right solution it's
a litle step to bring the regex working with embeded parenthesis beetween 


i only had 2pregs in the complete source that can catch any type of
registered function call with the simplified syntax ... this is fast enough
for me ...

Marek Kilimajer [EMAIL PROTECTED] schrieb im Newsbeitrag
news:[EMAIL PROTECTED]
 Forget regexp and try this function:
 http://sk.php.net/manual/en/function.token-get-all.php

 Jaaboo wrote:

  I give an wrong example. Here is a better one
 
  ?php
 
  $txt = func1($par1, 100 (euro), func2($par2,(c) by nobody));
 
  if (preg_match_all('
 
  /
 
  ([a-zA-Z]\w*?)
 
  \s*
 
  (
 
  \(
 
  (
 
  (?.*?)|
 
  .*?(?R)*
 
  )
 
  \)
 
  )+
 
  /x
 
  ', $txt, $m)){
 
  print_r($m);
 
  } else {
 
  echo no match;
 
  }
 
  echo \n;
 
 
 
  ?
 
  This must result in :
 
  First call: func1($par1, 100 (euro), func2($par2,(c) by nobody))
  Second call with the inner part $par1, 100 (euro), func2($par2,(c) by
  nobody)
  must result in : func2($par2,(c) by nobody)
 
 
 
  Please visit www.regexp.org there is an open thread of this question.
 
  thanx
 

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[PHP] Re: [RegExp] extracting anchors

[Jens Lehmann]

Jome wrote:
Jens Lehmann wrote:

Hello,

I want to extract the name-attribute of all anchors out of an
HTML-source-code which don't have the href-attribute. I can use this
code to get the name-attribute:
preg_match_all('/a([^]*?)name=[ \'\](.*?)[
\'\](.*?)/is',$src,$ar);
The name-attributes are now in $ar[2]. How can I exclude all links
which have the href-attribute? I didn't find an easy way how to say
that a string must _not_ be part of a pattern match. I hope you can
give me some advise.
This is one lousy solution but hey - it's a solution after all; you
can simply remove all a tags containing href before doing the
preg_match_all()-call, something like this below should do it I think.
$src = preg_replace('/a[^]*?href=[^]*?/is', '', $src);
This is of course a working solution, but I'm still interested if it can 
be done directly with just one regular expression. Thanks anyways.

Jens

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[PHP] Re: [RegExp] extracting anchors

[Jome]

Jens Lehmann wrote:
 Hello,

 I want to extract the name-attribute of all anchors out of an
 HTML-source-code which don't have the href-attribute. I can use this
 code to get the name-attribute:

 preg_match_all('/a([^]*?)name=[ \'\](.*?)[
 \'\](.*?)/is',$src,$ar);

 The name-attributes are now in $ar[2]. How can I exclude all links
 which have the href-attribute? I didn't find an easy way how to say
 that a string must _not_ be part of a pattern match. I hope you can
 give me some advise.

 Jens

This is one lousy solution but hey - it's a solution after all; you
can simply remove all a tags containing href before doing the
preg_match_all()-call, something like this below should do it I think.

$src = preg_replace('/a[^]*?href=[^]*?/is', '', $src);

   Jome



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[PHP] Re: regexp for ' replacement

[CC Zona]

In article 
[EMAIL PROTECTED],
 [EMAIL PROTECTED] (Thalis A. Kalfigopoulos) wrote:

 If I have as part of a text:
 ...and then 'the quick brown fox jumped over the lazy dog's piano'...
 
 How can I substitute the single quote in dog's with say \'
 I want to aply a substitution for only the single quote that is between two 
 single quotes and leave the rest of the text in between the same.

Does this work for you?

$str=...and then 'the quick brown fox jumped over the lazy dog's 
piano'...;
echo $str=preg_replace(/'(.*)'(.*)'/U,'$1\'$2',$str);

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[PHP] Re: regexp to substitute incremental strings

[liljim]

Hi mweb,

try this:

?

$string = IMG SRC=\C:\dir1\dir2\dir3\img1.gif\
blah blah blah some text, html markup...
IMG SRC=\img2.jpg\
blah blah again;

$string = preg_replace(/IMG SRC=\.*?([0-9])\.(gif|jpg)\/i, IMG
SRC=\UNIQUE_CODE_0$1.$2\, $string);

echo nl2br($string);

?


~James

Mweb  wrote in message ...
Hello,

What is the right regexp to handle this, either in a while loop (how?)
or all by itself? The closer I've come to the solution is:





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[PHP] Re: regexp (?:

[Franklin van Velthuizen]

Andrew Perevodchik [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 Why doesn't this simple example work?

 ereg (aaa(?:bbb|ccc)aaa, $string);

 It causes an error. However ?: command is
 documented in a manual of my version of PHP4.

It would probably be useful if you would also tell us WHAT you want to
accomplish, so we won't have to guess about your intentions...

/ Franklin



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[PHP] Re: regexp (?:

[CC Zona]

In article [EMAIL PROTECTED],
 [EMAIL PROTECTED] (Andrew Perevodchik) wrote:

 ereg (aaa(?:bbb|ccc)aaa, $string);
 
 It causes an error. However ?: command is
 documented in a manual of my version of PHP4.

AFAIK, that is only documented in the preg_* chapter, and only applies to 
the preg_* functions.  (The ereg_* functions use POSIX syntax, not PCRE).

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RE: [PHP] Re: REGEXP

[Adrian D'Costa]

  
  This is wrong.  It should be 
  Content-Type: multipart/mixed;
   boundary=B42DA66C4EC07C9B572A58FC
  
  I don't know why it is not reading the whole string.  It seems to treat
  the *boundary* part as another line. 
 
 It _is_ another line; it just happens to starts with whitespace. 
 check RFC822.

No doubt.

 
 If you have the whole message in a string (psuedo-code):

Huh..  Then the below should work.  But the stupid header breaks :)


 
 list ($h,$msg) =split(\n\n, $mailmsg);
 
 $h=str_replace(\t,  , $h);  // tab - space
 $h=str_replace(\n ,  , $h); //  nlspace - space 
 // i.e. continuation of prior line 
 
 $hdrs=split(\n, $h);
 
  ...
 
 Regards,
 


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RE: [PHP] Re: REGEXP

[Don Read]

On 16-Jul-01 Adrian D'Costa wrote:
 Hi James,
 
 Thanks for your mail.  But I think the problem like somewhere else.
 
 I have the following:
 echo $buffer;
 There result :
 Content-Type: multipart/mixed; 
 
 This is wrong.  It should be 
 Content-Type: multipart/mixed;
  boundary=B42DA66C4EC07C9B572A58FC
 
 I don't know why it is not reading the whole string.  It seems to treat
 the *boundary* part as another line. 

It _is_ another line; it just happens to starts with whitespace. 
check RFC822.

If you have the whole message in a string (psuedo-code):

list ($h,$msg) =split(\n\n, $mailmsg);

$h=str_replace(\t,  , $h);  // tab - space
$h=str_replace(\n ,  , $h); //  nlspace - space 
// i.e. continuation of prior line 

$hdrs=split(\n, $h);

 ...

Regards,
-- 
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-- It's always darkest before the dawn. So if you are going to 
   steal the neighbor's newspaper, that's the time to do it.

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[PHP] Re: REGEXP

[Adrian D'Costa]

Hi James,

Thanks for your mail.  But I think the problem like somewhere else.

I have the following:
echo $buffer;
There result :
Content-Type: multipart/mixed; 

This is wrong.  It should be 
Content-Type: multipart/mixed;
 boundary=B42DA66C4EC07C9B572A58FC

I don't know why it is not reading the whole string.  It seems to treat
the *boundary* part as another line.  I read somewhere the perl
compatiable regexp can read a multiply line treating CRLF as part of the
line.

Any pointers

Adrian

On Sun, 15 Jul 2001, James Tan wrote:

 hi,,
 
 u could try using explode function
 eg:
 
 arrayresult = explode(string, separator);
 
 cont = explode(thestring, \);
 
 echo cont[0] ;
 // result as
 Content-Type: multipart/mixed;
  boundary=
 echo cont[1];
 //result as
 B42DA66C4EC07C9B572A58FC
 echo cont[2];
 // array index 2 will be nothing.. null or 
 
 hope it works..
 regards,
 
 James
 
 Adrian D'Costa wrote:
 
  Hi,
 
  I am trying to capture the Header from a mail for my webmail using php and
  pop3.  The header is something like this:
  Content-Type: multipart/mixed;
   boundary=B42DA66C4EC07C9B572A58FC
 
  When I use preg_split(/[\d;]*/, $buffer), I get
  Content-Type: multipart/mixed;
 
  What I want is to return the whole line split by the ;.  I usually try
  to avoid regexp (too lazy) but now I want to use it.  The final result I
  would need is: B42DA66C4EC07C9B572A58FC so that I can search
  in the body of the message for the rest of the parts.
 
  Any pointers would be helpful.
 
  Adrian
 
 


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[PHP] Re: REGEXP

[James Tan]

hi,,

u could try using explode function
eg:

arrayresult = explode(string, separator);

cont = explode(thestring, \);

echo cont[0] ;
// result as
Content-Type: multipart/mixed;
 boundary=
echo cont[1];
//result as
B42DA66C4EC07C9B572A58FC
echo cont[2];
// array index 2 will be nothing.. null or 

hope it works..
regards,

James

Adrian D'Costa wrote:

 Hi,

 I am trying to capture the Header from a mail for my webmail using php and
 pop3.  The header is something like this:
 Content-Type: multipart/mixed;
  boundary=B42DA66C4EC07C9B572A58FC

 When I use preg_split(/[\d;]*/, $buffer), I get
 Content-Type: multipart/mixed;

 What I want is to return the whole line split by the ;.  I usually try
 to avoid regexp (too lazy) but now I want to use it.  The final result I
 would need is: B42DA66C4EC07C9B572A58FC so that I can search
 in the body of the message for the rest of the parts.

 Any pointers would be helpful.

 Adrian


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