Re: preg_match() return false

From	Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups	comp.lang.php
Subject	Re: preg_match() return false
Date	2020-12-28 02:02 +0000
Organization	A noiseless patient Spider
Message-ID	<877dp2adsw.fsf@bsb.me.uk> (permalink)
References	<rs9s7j$1vsr$1@gioia.aioe.org> <87im8n9scy.fsf@bsb.me.uk> <rsaag6$flf$1@gioia.aioe.org> <rsabtr$16ks$1@gioia.aioe.org>

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alex <1j9448a02@lnx159sneakemail.com.invalid> writes:

> Il 27/12/20 16:50, alex ha scritto:
>> Il 27/12/20 16:33, Ben Bacarisse ha scritto:
>>> I don't know, but your regexp is odd.  If you delete the second line it
>>> matches.
>>  > You don't need to .+¶ after matching .+¶ because the s
>>  > modifier means the first will match to the same place the second
>>  > would.
>>
>> However, I need this to make sure that there are at least two lines
>> between 'Mock message' and '-----'

I would ask for that explicitly, rather than relying on the
backtracking:

(:?[^\n]*\n){2,}-----

>>> Also, you don't need \ before - or :.
>>
>> echo preg_quote('-') . PHP_EOL;
>> echo preg_quote(':') . PHP_EOL;
>>
>> Output:
>>
>> \-
>> \:

Should I have been more precise?  You don't need \ before - or : in the
pattern you wrote.

<cut>
> PS
>
> Of course, "\n" means the carriage return (PHP_EOL).

"\n" means linefeed (sometimes called newline).  PHP_EOL is often "\n"
but not always.

-- 
Ben.

Thread

preg_match() return false alex <1j9448a02@lnx159sneakemail.com.invalid> - 2020-12-27 12:47 +0100
  Re: preg_match() return false tony@mountifield.org (Tony Mountifield) - 2020-12-27 12:50 +0000
    Re: preg_match() return false alex <1j9448a02@lnx159sneakemail.com.invalid> - 2020-12-27 14:21 +0100
  Re: preg_match() return false Arno Welzel <usenet@arnowelzel.de> - 2020-12-27 14:43 +0100
    Re: preg_match() return false alex <1j9448a02@lnx159sneakemail.com.invalid> - 2020-12-27 14:59 +0100
      Re: preg_match() return false Arno Welzel <usenet@arnowelzel.de> - 2020-12-28 15:16 +0100
    Re: preg_match() return false alex <1j9448a02@lnx159sneakemail.com.invalid> - 2020-12-27 15:11 +0100
  Re: preg_match() return false Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-12-27 15:33 +0000
    Re: preg_match() return false alex <1j9448a02@lnx159sneakemail.com.invalid> - 2020-12-27 16:50 +0100
      Re: preg_match() return false alex <1j9448a02@lnx159sneakemail.com.invalid> - 2020-12-27 17:14 +0100
        Re: preg_match() return false Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-12-28 02:02 +0000
          Re: preg_match() return false alex <1j9448a02@lnx159sneakemail.com.invalid> - 2020-12-28 10:38 +0100
          Re: PHP_EOL (was: preg_match() return false) "J.O. Aho" <user@example.net> - 2020-12-28 15:43 +0100
            Re: PHP_EOL alex <1j9448a02@lnx159sneakemail.com.invalid> - 2020-12-29 15:55 +0100

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