regular expression question: any character except a white space?

[lawrence]

I'm bad at regular expressions. Is this how I would look for any set
of characters that go more than 60 characters without a white space?

..{60}[^ ]



Also, does this match a block of PHP in an HTML page:



\<\?PHP .* \?\>

[Paul Wellner Bou]

Re: regular expression question: any character except a white space?

lawrence wrote:[color=blue]
> I'm bad at regular expressions. Is this how I would look for any set
> of characters that go more than 60 characters without a white space?
>
> .{60}[^ ][/color]

No, almost ;-)
take this:

[^ ]{60,}
[color=blue]
> Also, does this match a block of PHP in an HTML page:[/color]

If there's no white space between, yes.

Are you looking for wordwrap()?
--> www.php.net/wordwrap

Saludo
Paul.

[CC Zona]

Re: regular expression question: any character except a white space?

In article <c1qnqh$1mejqf$ 1@ID-205474.news.uni-berlin.de>,
Paul Wellner Bou <paul.wellner@u nited-scripts.com> wrote:
[color=blue]
> lawrence wrote:[color=green]
> > I'm bad at regular expressions. Is this how I would look for any set
> > of characters that go more than 60 characters without a white space?
> >
> > .{60}[^ ][/color]
>
> No, almost ;-)
> take this:
>
> [^ ]{60,}[/color]

That would catch 60 character strings, including those containing
whitespace characters such as newlines, tabs etc. Using preg_match or
preg_match_all:

/\S{61,}/

--
CC

[Paul Wellner Bou]

Re: regular expression question: any character except a white space?

CC Zona wrote:[color=blue][color=green]
>>[^ ]{60,}[/color]
> That would catch 60 character strings, including those containing
> whitespace characters...[/color]

Excepting the white space character, and that was what he was asking
for. Ok, perhaps he wanted to include other white space characters,
too ;-)
[color=blue]
> such as newlines,...[/color]

Only using modifiers /sm.
[color=blue]
> tabs etc. Using preg_match or
> preg_match_all:
>
> /\S{61,}/[/color]

Saludo
Paul.

[CC Zona]

Re: regular expression question: any character except a white space?

In article <c1rifm$1lm948$ 1@ID-205474.news.uni-berlin.de>,
Paul Wellner Bou <paul.wellner@u nited-scripts.com> wrote:
[color=blue]
> CC Zona wrote:[color=green][color=darkred]
> >>[^ ]{60,}[/color]
> > That would catch 60 character strings, including those containing
> > whitespace characters...[/color]
>
> Excepting the white space character, and that was what he was asking
> for.[/color]

In article <da7e68e8.04022 81025.77340781@ posting.google. com>,
lkrubner@geocit ies.com (lawrence) wrote:
[color=blue]
> I'm bad at regular expressions. Is this how I would look for any set
> of characters that go more than 60 characters without a white space?[/color]

"White space". Not "space character".
[color=blue]
> Ok, perhaps he wanted to include other white space characters,
> too ;-)[/color]
[color=blue][color=green]
> > such as newlines,...[/color]
>
> Only using modifiers /sm.[/color]

Only if the poster chooses PCRE over ereg, which is unlikely for a regex
novice.

$alsowhitespace =array("\n","\r ", "\t", "\v");
foreach ($alsowhitespac e as $char)
{
$str="012345678 90" . $char .
"12345678901234 567890123456789 012345678901234 56789";
if (ereg("[^ ]{60,}",$str)) print "Wrong pattern";
}

--
CC

[CC Zona]

Re: regular expression question: any character except a white space?

In article <cczona-8CDE5F.23253928 022004@netnews. comcast.net>,
CC Zona <cczona@nospam. invalid> wrote:
[color=blue][color=green]
> > Ok, perhaps he wanted to include other white space characters,
> > too ;-)[/color]
>[color=green][color=darkred]
> > > such as newlines,...[/color]
> >
> > Only using modifiers /sm.[/color]
>
> Only if the poster chooses PCRE over ereg, which is unlikely for a regex
> novice.[/color]

(And, only if either of the "s" or "m" modifier applied to the pattern in
question, which neither does. The class [^ ] matches newlines et al in
PCRE as well as ereg.)

--
CC

[Paul Wellner Bou]

Re: regular expression question: any character except a white space?

>>Only using modifiers /sm.[color=blue]
>
> Only if the poster chooses PCRE over ereg, which is unlikely for a regex
> novice.[/color]

Why that?
(I never worked with ereg... and at php.net they recommend using the
preg functions)

[John Dunlop]

Re: regular expression question: any character except a white space?

lawrence wrote:
[color=blue]
> Also, does this match a block of PHP in an HTML page:
>
> \<\?PHP .* \?\>[/color]

Did you try it? With no modifiers? All that matches is the string
"<?PHP" followed by a space followed by zero or more of any character
(except newlines, by default), followed by a space, followed by the
string "?>".

The answer to your question, then, is: possibly, depending on the
block's tags, its content and the rest of the file. It matches
almost none of the example blocks given in this newsgroup, for
example.

begin example

<script language=php>
$foo = '<?PHP '; $bar = ' ?>'
</script>

http://www.php.net/manual/en/language.basic-syntax.php

--
Jock

[lawrence]

Re: regular expression question: any character except a white space?

Paul Wellner Bou <paul.wellner@u nited-scripts.com> wrote in message news:<c1qnqh$1m ejqf$1@ID-205474.news.uni-berlin.de>...[color=blue]
> lawrence wrote:[color=green]
> > I'm bad at regular expressions. Is this how I would look for any set
> > of characters that go more than 60 characters without a white space?
> >
> > .{60}[^ ][/color]
>
> No, almost ;-)
> take this:
>
> [^ ]{60,}[/color]

Thanks much for the response. I've promised myself I'm going to master
regex this winter, but I've still a long way to go.



[color=blue]
> Are you looking for wordwrap()?
> --> www.php.net/wordwrap[/color]

As discussed in another thread I posted, I dislike wordwrap on the web
because in most situations I'm combining it with nl2br and it can lead
to jagged line edges. I don't remember why I couldn't put the wordwrap
after the nl2br, but for some reason I couldn't.

[lawrence]

Re: regular expression question: any character except a white space?

ng4rrjanbiah@re diffmail.com (R. Rajesh Jeba Anbiah) wrote in message news:<abc4d8b8. 0402292050.4095 19a2@posting.go ogle.com>...[color=blue]
> Try & learn with <http://www.weitz.de/regex-coach/>[/color]

Thanks. That was a great suggestion.

[Terence]

Re: regular expression question: any character except a white space?

I've been using PHP for years now and I still can't do regexs.

Everytime I go to use them, it's like once in a blue moon, so I learn
just enough for that particular requirement, then all the knowledge
leaks out of my head again.

and then next time, it's back to square one.

I bought the oreiley book "mastering regular expressions" but I never
have the time to finish it -- and everytime I come back to it, I have to
start again :/

Everytime I try reading one of the many condensed guides, I go to use it
on my real-life problem and then something is missing. Something is
always missing. It's always a vital detail and I never know what it is
and I never know where to start looking to find the answer.

I don't know how many winters I promised myself I would sit down and
learn it properly. Now that I use XML/XSLT for 100% of my websites, I
have little need for crunching strings.

grrrrrrr

(well that post was completely useless wasn't it).

[John Dunlop]

Re: regular expression question: any character except a white space?

Terence wrote:
[color=blue]
> I bought the oreiley book "mastering regular expressions" but I never
> have the time to finish it -- and everytime I come back to it, I have to
> start again :/[/color]

What do you think of what you've read so far?
[color=blue]
> (well that post was completely useless wasn't it).[/color]

I don't think so. But you're welcome to your opinion. :-)

--
Jock

[Terence]

Re: regular expression question: any character except a white space?

John Dunlop wrote:
[color=blue]
> Terence wrote:
>
>[color=green]
>>I bought the oreiley book "mastering regular expressions" but I never
>>have the time to finish it -- and everytime I come back to it, I have to
>>start again :/[/color]
>
>
> What do you think of what you've read so far?
>[/color]

I can't remember right now, it's been a few months since I started
reading it. I'll start reading it again and let you know...