Say I have the following script:
<?
$string = 'test';
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
{
echo 'matches!';
}
else
{
echo 'no match';
}
?>
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
Also, what does | | do? Normally, it'd mean 'or', but inside of []'s?
And two of them?
18  2003 
On Wed, 18 Jan 2006 21:36:20 -0800, yawnmoth wrote: Say I have the following script:
<?
$string = 'test';
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
{
echo 'matches!';
}
else
{
echo 'no match';
}
?>
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
the \ is escaping the s, so is invisible to the regular expression. To
have an \ in the string, you'd need to see \\
Also, what does | | do? Normally, it'd mean 'or', but inside of []'s?
And two of them?
Well, one | inside a class ( [...] ) matches |. Not too sure what 2 of
them mean, though. The space between them will also be matched. Using | as
an or would require the use of parentheses as well.
tbh, I'm not too sure the author really knew what they were doing, as
almost all those characters with special powers ( like \ ) lose them all
when between []'s (:
hth,
Steve
yawnmoth wrote: if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
To have this expression make sence to me, it should look like
if (eregi("^[a-z0-9 ,+.-]+$",$string)){
'-' should be the first og last character
all the special characters looses their meaning in a character class.
so you acually have 4 maching backslashes in the expression
"Steve" <Th*****@Aint.Valid> wrote in message
news:pa****************************@Aint.Valid... On Wed, 18 Jan 2006 21:36:20 -0800, yawnmoth wrote:
Say I have the following script:
<?
$string = 'test';
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
{
echo 'matches!';
}
else
{
echo 'no match';
}
?>
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it... the \ is escaping the s, so is invisible to the regular expression. To
have an \ in the string, you'd need to see \\
That's not true. \s is whitespace. tabs or spaces.
\. means a "." as opposed to matching any character. don't know why they
escaped the comma.
\- was necessary so "-" is not interpreted as a range.
\+ may not have been necessary, but safe anyway.
Also, what does | | do? Normally, it'd mean 'or', but inside of []'s?
And two of them?
Well, one | inside a class ( [...] ) matches |. Not too sure what 2 of
them mean, though. The space between them will also be matched. Using | as
an or would require the use of parentheses as well.
tbh, I'm not too sure the author really knew what they were doing, as
almost all those characters with special powers ( like \ ) lose them all
when between []'s (:
hth,
Steve
"yawnmoth" <te*******@yahoo.com> wrote in message
news:11*********************@f14g2000cwb.googlegro ups.com... Say I have the following script:
<?
$string = 'test';
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
^ means starting from the beginning of the line
[] means match one character in the set between the brackets.
+ after the [] means match 1 or more of those.
$ means must hit the end of the line.
{
echo 'matches!';
}
else
{
echo 'no match';
}
?>
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
Also, what does | | do? Normally, it'd mean 'or', but inside of []'s?
And two of them?
"Jim Michaels" <jm******@nospam.yahoo.com> wrote: [...] Why does $string = 'te\st' yield a match? The
ereg expression doesn't have a \\ in it...
the \ is escaping the s, so is invisible to the regular
expression. To have an \ in the string, you'd need
to see \\
That's not true. \s is whitespace. tabs or spaces.
"\s" means whitespace in a regular expression, but not in the string
being matched against.
P.
"Palle Hansen" <pa***@na.invalid> wrote in message
news:43***********************@dtext01.news.tele.d k... yawnmoth wrote:
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string)) Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
To have this expression make sence to me, it should look like
if (eregi("^[a-z0-9 ,+.-]+$",$string)){
'-' should be the first og last character
all the special characters looses their meaning in a character class.
if that's true, how yould you match a tab character \t or a whitespace \s?
Somehow I don't think they would do that.
I tried <?php print preg_match('/[\s]/'," \t "); ?> and it returned 1.
it works. \t and \s works in a character class. you can escape things. I
don't know who told you this.
so you acually have 4 maching backslashes in the expression
"Steve" <Th*****@Aint.Valid> wrote in message
news:pa****************************@Aint.Valid... On Wed, 18 Jan 2006 21:36:20 -0800, yawnmoth wrote:
Say I have the following script:
<?
$string = 'test';
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
{
echo 'matches!';
}
else
{
echo 'no match';
}
?>
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it... the \ is escaping the s, so is invisible to the regular expression. To
have an \ in the string, you'd need to see \\
Also, what does | | do? Normally, it'd mean 'or', but inside of []'s?
And two of them?
Well, one | inside a class ( [...] ) matches |. Not too sure what 2 of
them mean, though. The space between them will also be matched. Using | as
an or would require the use of parentheses as well.
tbh, I'm not too sure the author really knew what they were doing, as
almost all those characters with special powers ( like \ ) lose them all
when between []'s (:
<?php print preg_match('/[\s]/'," \t "); ?>
1
Where did you hear this? this has been a part of Perl RE's for a long time.
Perl's REs were pretty much ported to PHP. PERL RE was POSIX if I am not
mistaken.
I've been able to escape things in [] character classes in UNIX and
grep-like programs for as long as I can remember. I thought I remember
having to so I could avoid weird behavior.
it's probably not safe to avoid escaping "-" because of its interpretation
as a range. better to be safe than sorry.
hth,
Steve
"Palle Hansen" <pa***@na.invalid> wrote in message
news:43***********************@dtext01.news.tele.d k... yawnmoth wrote:
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
To have this expression make sence to me, it should look like
if (eregi("^[a-z0-9 ,+.-]+$",$string)){
'-' should be the first og last character
all the special characters looses their meaning in a character class.
so you acually have 4 maching backslashes in the expression
nope. I just tried it. I've been able to escape things in RE char classes
for a long time. otherwise, you couldn't include things like tabs \t,
whitespace \s, newline \n, return \r and other control characters, word
characters \w, decimal digits \d. We didn't get Perl's character classes
like ::alpha:: (I don't think).
On 2006-02-09, Jim Michaels <jm******@nospam.yahoo.com> wrote:
"Steve" <Th*****@Aint.Valid> wrote in message
news:pa****************************@Aint.Valid... On Wed, 18 Jan 2006 21:36:20 -0800, yawnmoth wrote:
Say I have the following script:
<?
$string = 'test';
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
{
echo 'matches!';
}
else
{
echo 'no match';
}
?>
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it... the \ is escaping the s, so is invisible to the regular expression. To
have an \ in the string, you'd need to see \\
Also, what does | | do? Normally, it'd mean 'or', but inside of []'s?
And two of them?
Well, one | inside a class ( [...] ) matches |. Not too sure what 2 of
them mean, though. The space between them will also be matched. Using | as
an or would require the use of parentheses as well.
tbh, I'm not too sure the author really knew what they were doing, as
almost all those characters with special powers ( like \ ) lose them all
when between []'s (:
<?php print preg_match('/[\s]/'," \t "); ?>
1
Where did you hear this? this has been a part of Perl RE's for a long time.
Perl's REs were pretty much ported to PHP. PERL RE was POSIX if I am not
mistaken.
Possibly they share a common ancestor. They are different now.
I've been able to escape things in [] character classes in UNIX and
grep-like programs for as long as I can remember. I thought I remember
having to so I could avoid weird behavior.
I suspect you're mistaken.
this from regex(7):
..
.. To include a literal ]' in the list, make it the first character (fol-
.. lowing a possible ^'). To include a literal -', make it the first or
.. last character, or the second endpoint of a range. To use a literal
.. '-' as the first endpoint of a range, enclose it in [.' and .]' to
.. make it a collating element (see below). With the exception of these
.. and some combinations using [' (see next paragraphs), all other spe-
.. cial characters, including \', lose their special significance within
.. a bracket expression.
it's probably not safe to avoid escaping "-" because of its interpretation
as a range. better to be safe than sorry.
depends on the definition of safe.
Bye.
Jasen
On 2006-02-09, Jim Michaels <jm******@nospam.yahoo.com> wrote:
"Palle Hansen" <pa***@na.invalid> wrote in message
news:43***********************@dtext01.news.tele.d k... yawnmoth wrote:
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string)) Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
To have this expression make sence to me, it should look like
if (eregi("^[a-z0-9 ,+.-]+$",$string)){
'-' should be the first og last character
all the special characters looses their meaning in a character class.
so you acually have 4 maching backslashes in the expression
nope. I just tried it. I've been able to escape things in RE char classes
for a long time. otherwise, you couldn't include things like tabs \t,
newline \n, return \r and other control characters,
those aren't escaped in the regular expression, they are escaped in the
string. The resular expression parser doesn't see the slashes associated
with those symbols, rather it sees the actual character.
whitespace \s, word characters \w, decimal digits \d.
they don't work inside bracket expressions.
We didn't get Perl's character classes
like ::alpha:: (I don't think).
???
--
Bye.
Jasen
On 2006-02-09, Jim Michaels <jm******@nospam.yahoo.com> wrote:
"Steve" <Th*****@Aint.Valid> wrote in message
news:pa****************************@Aint.Valid... On Wed, 18 Jan 2006 21:36:20 -0800, yawnmoth wrote:
Say I have the following script:
<?
$string = 'test';
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
{
echo 'matches!';
}
else
{
echo 'no match';
}
?>
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it... the \ is escaping the s, so is invisible to the regular expression. To
have an \ in the string, you'd need to see \\
That's not true. \s is whitespace. tabs or spaces.
That's not true the "\s" is outside of the regualar expression.
"\s" is the same as '\s' and prints as \s.
\. means a "." as opposed to matching any character. don't know why they
escaped the comma.
\- was necessary so "-" is not interpreted as a range.
\+ may not have been necessary, but safe anyway.
There are four \ in the regex. one is sufficient to cause a match.
in extended regex \ loses its special meaning inside bracket expressions.
(except its normal string meanings \t etc... where the \ insn't
actually present in the string anyway)
To include a literal '-' in a bracket expression have it first or last. Also, what does | | do? Normally, it'd mean 'or', but inside of []'s?
And two of them?
Well, one | inside a class ( [...] ) matches |. Not too sure what 2 of
them mean, though. The space between them will also be matched. Using | as
an or would require the use of parentheses as well.
two are the same as one.
tbh, I'm not too sure the author really knew what they were doing, as
almost all those characters with special powers ( like \ ) lose them all
when between []'s (:
gotta agree there. possibly he thought he was writing a perl regex, where
he should have used preg_match.
Bye.
Jasen
On 2006-02-09, Jim Michaels <jm******@nospam.yahoo.com> wrote: "Palle Hansen" <pa***@na.invalid> wrote in message
news:43***********************@dtext01.news.tele.d k... yawnmoth wrote:
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string)) Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
To have this expression make sence to me, it should look like
if (eregi("^[a-z0-9 ,+.-]+$",$string)){
'-' should be the first og last character
all the special characters looses their meaning in a character class.
if that's true, how yould you match a tab character \t
when you say "\t" in a doouble-quote string the the \t is transformed
into a tab character, and there is no \ in the actual string.
or a whitespace \s?
you say "[:space:]" inside the brackets - eg: "[a-z[:space:]]".
If you have shell access to a unix(etc) system do "man 7 regex."
Somehow I don't think they would do that.
I tried <?php print preg_match('/[\s]/'," \t "); ?> and it returned 1.
it works. \t and \s works in a character class. you can escape things. I
don't know who told you this.
Only in perl perl regular expressions, not in POSIX extended regular
expressions.
The ereg... functions use POSIX extended regular expressions.
Bye.
Jasen
"Jasen Betts" <ja***@free.net.nz> wrote in message
news:ad****************@clunker.homenet... On 2006-02-09, Jim Michaels <jm******@nospam.yahoo.com> wrote:
"Steve" <Th*****@Aint.Valid> wrote in message
news:pa****************************@Aint.Valid... On Wed, 18 Jan 2006 21:36:20 -0800, yawnmoth wrote:
Say I have the following script:
<?
$string = 'test';
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
{
echo 'matches!';
}
else
{
echo 'no match';
}
?>
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
the \ is escaping the s, so is invisible to the regular expression. To
have an \ in the string, you'd need to see \\
Also, what does | | do? Normally, it'd mean 'or', but inside of []'s?
And two of them?
Well, one | inside a class ( [...] ) matches |. Not too sure what 2 of
them mean, though. The space between them will also be matched. Using |
as
an or would require the use of parentheses as well.
tbh, I'm not too sure the author really knew what they were doing, as
almost all those characters with special powers ( like \ ) lose them all
when between []'s (:
<?php print preg_match('/[\s]/'," \t "); ?>
1
Where did you hear this? this has been a part of Perl RE's for a long
time.
Perl's REs were pretty much ported to PHP. PERL RE was POSIX if I am not
mistaken.
Possibly they share a common ancestor. They are different now.
I've been able to escape things in [] character classes in UNIX and
grep-like programs for as long as I can remember. I thought I remember
having to so I could avoid weird behavior.
I suspect you're mistaken.
this from regex(7):
.
. To include a literal ]' in the list, make it the first character (fol-
. lowing a possible ^'). To include a literal -', make it the first or
. last character, or the second endpoint of a range. To use a literal
. '-' as the first endpoint of a range, enclose it in [.' and .]' to
. make it a collating element (see below). With the exception of these
. and some combinations using [' (see next paragraphs), all other spe-
. cial characters, including \', lose their special significance within
. a bracket expression.
OK, I may be mistaken there about UNIX RegEx. I thought for sure I've used
them in grep and sed.
This is from the PHP manual:
Ranges operate in ASCII collating sequence. They can also be used for
characters specified numerically, for example [\000-\037]. If a range that
includes letters is used when caseless matching is set, it matches the
letters in either case. For example, [W-c] is equivalent to [][\^_`wxyzabc],
matched caselessly, and if character tables for the "fr" locale are in use,
[\xc8-\xcb] matches accented E characters in both cases.
The character types \d, \D, \s, \S, \w, and \W may also appear in a
character class, and add the characters that they match to the class. For
example, [\dABCDEF] matches any hexadecimal digit. A circumflex can
conveniently be used with the upper case character types to specify a more
restricted set of characters than the matching lower case type. For example,
the class [^\W_] matches any letter or digit, but not underscore.
it's probably not safe to avoid escaping "-" because of its
interpretation
as a range. better to be safe than sorry.
depends on the definition of safe.
Bye.
Jasen
"Jasen Betts" <ja***@free.net.nz> wrote in message
news:9d****************@clunker.homenet... On 2006-02-09, Jim Michaels <jm******@nospam.yahoo.com> wrote:
"Palle Hansen" <pa***@na.invalid> wrote in message
news:43***********************@dtext01.news.tele.d k... yawnmoth wrote:
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
To have this expression make sence to me, it should look like
if (eregi("^[a-z0-9 ,+.-]+$",$string)){
'-' should be the first og last character
all the special characters looses their meaning in a character class.
if that's true, how yould you match a tab character \t
when you say "\t" in a doouble-quote string the the \t is transformed
into a tab character, and there is no \ in the actual string.
or a whitespace \s?
you say "[:space:]" inside the brackets - eg: "[a-z[:space:]]".
sure enough - it worked. I guess it should. the manual said it was Perl 5
compatible RegEx. actually \s works in PHP too, but I think it also matches
a tab besides a space. a PHP extra.
If you have shell access to a unix(etc) system do "man 7 regex."
Somehow I don't think they would do that.
I tried <?php print preg_match('/[\s]/'," \t "); ?> and it returned
1.
it works. \t and \s works in a character class. you can escape things.
I
don't know who told you this.
Only in perl perl regular expressions, not in POSIX extended regular
expressions.
The ereg... functions use POSIX extended regular expressions.
<?php if (ereg("/[\s]/"," ")) echo 1; else echo 0; ?>
0
ahhh. good to know. there must be a reason why they did that.
Bye.
Jasen
"Jim Michaels" <jm******@nospam.yahoo.com> wrote in message
news:lv********************@comcast.com...
"Palle Hansen" <pa***@na.invalid> wrote in message
news:43***********************@dtext01.news.tele.d k... yawnmoth wrote:
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string)) Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
To have this expression make sence to me, it should look like
if (eregi("^[a-z0-9 ,+.-]+$",$string)){
<?php if(ereg("[|]","|")) echo 1; else echo 0; ?>
1
<?php echo "\,"; ?>
\,
<?php if(ereg("[\,]","\\")) echo 1; else echo 0; ?>
1
so a | in an ereg class will be recognized as a |. And a \, will probably
be recognized as a \ and a comma.
'-' should be the first og last character
all the special characters looses their meaning in a character class.
if that's true, how yould you match a tab character \t or a whitespace \s?
Somehow I don't think they would do that.
I tried <?php print preg_match('/[\s]/'," \t "); ?> and it returned
1. it works. \t and \s works in a character class. you can escape things.
I don't know who told you this.
As I found out by another post session with Jason, ereg uses a different
regex type (POSIX extended) than that of preg_match (Perl-compatible).
so as he said, \ probably loses its significance in character classes in a
POSIX setting... (ereg), of which the PHP manual says pretty much nothing
but referring to regex(7) manual, the exception being preg_match and its
like functions (see PHP manual), which BTW also happen to be faster than
ereg (see PHP manual).
a faster equivelant to this above would probably be
if (preg_match("/^[\w\d,.+-]+$/",$string)){
I tested it to make sure I don't need to escape the . I guess I wouldn't
make sense anyway inside a character class matching any character, but I had
to make sure.
so you acually have 4 maching backslashes in the expression
On 18 Jan 2006 21:36:20 -0800, "yawnmoth" <te*******@yahoo.com> wrote: Say I have the following script:
<?
$string = 'test';
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
{
echo 'matches!';
}
else
{
echo 'no match';
}
?>
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
You've got the slashes in front of the punctuation near the end. One or more
are being picked up as a literal slash in the character class.
Once you remove them, then watch out for the sequence ",-+" inside the
character class, as that ends up as a character range comma to plus - although
that doesn't make much sense since comma is after plus in ASCII.
If you want - in a character class it should be the final character.
Also, what does | | do? Normally, it'd mean 'or', but inside of []'s?
And two of them?
The second | is redundant. "| |" in a character class matches | and a space.
--
Andy Hassall :: an**@andyh.co.uk :: http://www.andyh.co.uk http://www.andyhsoftware.co.uk/space :: disk and FTP usage analysis tool
"Jim Michaels" <jm******@nospam.yahoo.com> wrote in message
news:ab********************@comcast.com...
"yawnmoth" <te*******@yahoo.com> wrote in message
news:11*********************@f14g2000cwb.googlegro ups.com... Say I have the following script:
<?
$string = 'test';
if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
^ means starting from the beginning of the line
[] means match one character in the set between the brackets.
+ after the [] means match 1 or more of those.
$ means must hit the end of the line.
{
echo 'matches!';
}
else
{
echo 'no match';
}
?>
Why does $string = 'te\st' yield a match? The ereg expression doesn't
have a \\ in it...
Also, what does | | do? Normally, it'd mean 'or', but inside of []'s?
And two of them?
after my tests, this ereg is clearly wasn't written for any PHP function.
were it written for preg_match, it is missing // around the ends and the
case insensitivity using \w instead of a-z. it's not writen for ereg
because of the |'s and the \'s. Only 1 should be necessary, but clearly they
put two in because they thought it had some special meaning. I don't
remember what significance (if any) | had in a Perl RE (which preg_match
series of functions is compatible with). This could have maybe been a
bad(?) Perl RE port-attempt to PHP.
On 2006-02-15, Jim Michaels <jm******@nospam.yahoo.com> wrote:
"Jasen Betts" <ja***@free.net.nz> wrote in message
news:ad****************@clunker.homenet... On 2006-02-09, Jim Michaels <jm******@nospam.yahoo.com> wrote:
"Steve" <Th*****@Aint.Valid> wrote in message
news:pa****************************@Aint.Valid...
On Wed, 18 Jan 2006 21:36:20 -0800, yawnmoth wrote:
> Say I have the following script:
>
> <?
> $string = 'test';
> if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
> {
> echo 'matches!';
> }
> else
> {
> echo 'no match';
> }
> ?>
>
> Why does $string = 'te\st' yield a match? The ereg expression doesn't
> have a \\ in it...
the \ is escaping the s, so is invisible to the regular expression. To
have an \ in the string, you'd need to see \\
>
> Also, what does | | do? Normally, it'd mean 'or', but inside of []'s?
> And two of them?
Well, one | inside a class ( [...] ) matches |. Not too sure what 2 of
them mean, though. The space between them will also be matched. Using |
as
an or would require the use of parentheses as well.
tbh, I'm not too sure the author really knew what they were doing, as
almost all those characters with special powers ( like \ ) lose them all
when between []'s (:
<?php print preg_match('/[\s]/'," \t "); ?>
1 Where did you hear this? this has been a part of Perl RE's for a long
time.
Perl's REs were pretty much ported to PHP. PERL RE was POSIX if I am not
mistaken.
Possibly they share a common ancestor. They are different now.
I've been able to escape things in [] character classes in UNIX and
grep-like programs for as long as I can remember. I thought I remember
having to so I could avoid weird behavior.
I suspect you're mistaken.
this from regex(7):
.
. To include a literal ]' in the list, make it the first character (fol-
. lowing a possible ^'). To include a literal -', make it the first or
. last character, or the second endpoint of a range. To use a literal
. '-' as the first endpoint of a range, enclose it in [.' and .]' to
. make it a collating element (see below). With the exception of these
. and some combinations using [' (see next paragraphs), all other spe-
. cial characters, including \', lose their special significance within
. a bracket expression.
OK, I may be mistaken there about UNIX RegEx. I thought for sure I've used
them in grep and sed.
This is from the PHP manual:
a URL would have been nice, anyway, I used grep and found it.
Ranges operate in ASCII collating sequence. They can also be used for
characters specified numerically, for example [\000-\037]. If a range that
includes letters is used when caseless matching is set, it matches the
letters in either case. For example, [W-c] is equivalent to [][\^_`wxyzabc],
matched caselessly, and if character tables for the "fr" locale are in use,
[\xc8-\xcb] matches accented E characters in both cases.
The character types \d, \D, \s, \S, \w, and \W may also appear in a
character class, and add the characters that they match to the class. For
example, [\dABCDEF] matches any hexadecimal digit. A circumflex can
conveniently be used with the upper case character types to specify a more
restricted set of characters than the matching lower case type. For example,
the class [^\W_] matches any letter or digit, but not underscore.
reference.pcre.pattern.syntax.html
----
but that's on a page describing Perl Compatible Regular Expressions,
The preg_.+ functions do that, the posix ones do not
Bye.
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