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#### Getting rid of 'escape' backslashes in text

I have a script for sending 'round-robin' emails to choir members
appended below.

The data (sender, body, subject) is passed from an HTML form using POST.

The script works fine except that apostrophes, quotes etc. appear
'escaped' in the text of the email e.g. don\'t

Not a deal-breaker but untidy: can I clean this up somehow?

<?php
$sender =$_POST['sender'];
$body =$_POST['body'];
$subject =$_POST['subject'];

$headers = "From:$sender \r\n" .
"X-Mailer: PHP/" . phpversion() . "\r\n";

echo "$subject <br><br>"; echo "$headers <br><br>";
echo "$body <br><br>"; // now get mail recipients include("/home/cantabi1/admin_connect.php");$sql = "SELECT memberName, email\n"
. "FROM member\n"
. "WHERE active = 1 \n";

$result = mysql_query($sql, $conn) or die(mysql_error()); // and generate mail for each active member while ($row = mysql_fetch_assoc($result)) {$to = $row['email'];$message = "Dear " . $row['memberName'] . ",\n\n$body";

if (mail($to,$subject, $body,$headers)) {
echo "mail sent to " . $row['memberName'] . "<br/><br/>"; } else { echo "error in sending mail to " .$row['memberName'] . "<br/><br/
>";
}
} //endwhile

?>


 0
frderek (43)
8/18/2010 9:15:28 AM
comp.lang.php 32646 articles. 0 followers.

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On 18 Aug, 10:15, Derek Turner <frde...@cesmail.net> wrote:
> I have a script for sending 'round-robin' emails to choir members
> appended below.
>
> The data (sender, body, subject) is passed from an HTML form using POST.
>
> The script works fine except that apostrophes, quotes etc. appear
> 'escaped' in the text of the email e.g. don\'t
>
> Not a deal-breaker but untidy: can I clean this up somehow?
>
> <?php
> $sender =3D$_POST['sender'];
> $body =3D$_POST['body'];
> $subject =3D$_POST['subject'];
>
>
> $headers =3D "From:$sender \r\n" .
> =A0 =A0 =A0 =A0 "X-Mailer: PHP/" . phpversion() . "\r\n";
>
> echo "$subject <br><br>"; > echo "$headers <br><br>";
> echo "$body <br><br>"; > > // now get mail recipients > include("/home/cantabi1/admin_connect.php"); >$sql =3D "SELECT memberName, email\n"
> =A0 =A0 =A0 =A0 . "FROM member\n"
> =A0 =A0 =A0 =A0 . "WHERE active =3D 1 \n";
>
> $result =3D mysql_query($sql, $conn) or die(mysql_error()); > > // and generate mail for each active member > > while ($row =3D mysql_fetch_assoc($result)) { > =A0 =A0$to =3D $row['email']; > > =A0 =A0$message =3D "Dear " . $row['memberName'] . ",\n\n$body";
>
> =A0 =A0 if (mail($to,$subject, $body,$headers)) {
> =A0 =A0 =A0 =A0 echo "mail sent to " . $row['memberName'] . "<br/><br/>"; > =A0 =A0 } > =A0 =A0 else { > =A0 =A0 =A0 =A0 echo "error in sending mail to " .$row['memberName'] . "=
<br/><br/
>
> >";
> =A0 =A0 }
> } //endwhile
>
> ?>

Take a look at:

 0
paul_lautman (2109)
8/18/2010 9:38:45 AM
El 18/08/2010 11:15, Derek Turner escribió/wrote:
> I have a script for sending 'round-robin' emails to choir members
> appended below.
>
> The data (sender, body, subject) is passed from an HTML form using POST.
>
> The script works fine except that apostrophes, quotes etc. appear
> 'escaped' in the text of the email e.g. don\'t
>
> Not a deal-breaker but untidy: can I clean this up somehow?

It can be easy to fix... or not. Your server has the Magic Quotes
feature enabled:

http://es2.php.net/magic_quotes

You can disable them as explained on the link.

However, before disabling it you need to make sure that your code does
not rely on this feature to escape input data in SQL queries. You appear
to be using good old MySQL extension so must use
mysql_real_escape_string() to inject data into your SQL code.

> $sender =$_POST['sender'];
[...]
> $headers = "From:$sender \r\n" .
>          "X-Mailer: PHP/" . phpversion() . "\r\n";
[...]
>      if (mail($to,$subject, $body,$headers)) {

Oh my, you should not be doing this. If $_POST['sender'] contains a line feed, anyone can use your server to send spam or anything they want: http://en.wikipedia.org/wiki/E-mail_injection -- -- http://alvaro.es - Álvaro G. Vicario - Burgos, Spain -- Mi sitio sobre programación web: http://borrame.com -- Mi web de humor satinado: http://www.demogracia.com --   0 UTF 8/18/2010 9:43:13 AM On 18 Aug 2010 09:15:28 GMT, Derek Turner <frderek@cesmail.net> wrote: >The data (sender, body, subject) is passed from an HTML form using POST. Not a problem if only you are allowed to use this but there could be further security issues if this was in public view. I'm sure you know this. > >The script works fine except that apostrophes, quotes etc. appear >'escaped' in the text of the email e.g. don\'t > >Not a deal-breaker but untidy: can I clean this up somehow? > ><?php >$sender = $_POST['sender']; >$body = $_POST['body']; >$subject = $_POST['subject']; Replace that with: if (get_magic_quotes_gpc()) {$sender =stripslashes( $_POST['sender']);$body = stripslashes($_POST['body']);$subject = stripslashes($_POST['subject']); } else {$sender = $_POST['sender'];$body = $_POST['body'];$subject = $_POST['subject']; } -- Geoff Berrow (Put thecat out to email) It's only Usenet, no one dies. My opinions, not the committee's, mine. Simple RFDs www.4theweb.co.uk/rfdmaker   0 Geoff 8/18/2010 10:27:03 AM On Wed, 18 Aug 2010 11:43:13 +0200, Álvaro G. Vicario wrote: > > > It can be easy to fix... or not. Your server has the Magic Quotes > feature enabled: > > http://es2.php.net/magic_quotes > > You can disable them as explained on the link. > I don't think I can: I don't think I can change any PHP settings but will investigate. > > Oh my, you should not be doing this. If$_POST['sender'] contains a line
> feed, anyone can use your server to send spam or anything they want:
>
> http://en.wikipedia.org/wiki/E-mail_injection

Thank you for that warning. The 'From input' is a radio button choice so
can not have a line-feed. Also the HTML form is behind .htaccess, not
indexed and available only to me and the musical director. HOWEVER having
read the article I will change over to Zend_Mail ASAP!

 0
Derek
8/18/2010 11:18:32 AM
On Wed, 18 Aug 2010 11:27:03 +0100, Geoff Berrow wrote:

> On 18 Aug 2010 09:15:28 GMT, Derek Turner <frderek@cesmail.net> wrote:
>
>>The data (sender, body, subject) is passed from an HTML form using POST.
> Not a problem if only you are allowed to use this but there could be
> further security issues if this was in public view.  I'm sure you know
> this.

>
> Replace that with:
>
> if (get_magic_quotes_gpc()) {
> $sender =stripslashes($_POST['sender']); $body = > stripslashes($_POST['body']); $subject = > stripslashes($_POST['subject']); }
> else {
> $sender =$_POST['sender'];
> $body =$_POST['body'];
> $subject =$_POST['subject'];
>
> }

Brilliant thanks. I might try turning off magicquotes in this folder
using .htaccess first.

 0
Derek
8/18/2010 11:34:08 AM
On 18 Aug 2010 11:18:32 GMT, Derek Turner <frderek@cesmail.net> wrote:

>> Oh my, you should not be doing this. If $_POST['sender'] contains a line >> feed, anyone can use your server to send spam or anything they want: >> >> http://en.wikipedia.org/wiki/E-mail_injection > >Thank you for that warning. The 'From input' is a radio button choice so >can not have a line-feed. Also the HTML form is behind .htaccess, not >indexed and available only to me and the musical director. HOWEVER having >read the article I will change over to Zend_Mail ASAP! The radio button is no defence unfortunately. Having it password protected will help. For just two of you you could have two separate pages with from addresses hard coded. -- Geoff Berrow (Put thecat out to email) It's only Usenet, no one dies. My opinions, not the committee's, mine. Simple RFDs www.4theweb.co.uk/rfdmaker   0 Geoff 8/18/2010 12:31:47 PM Derek Turner wrote: > On Wed, 18 Aug 2010 11:43:13 +0200, Álvaro G. Vicario wrote: > >> >> It can be easy to fix... or not. Your server has the Magic Quotes >> feature enabled: >> >> http://es2.php.net/magic_quotes >> >> You can disable them as explained on the link. >> > I don't think I can: I don't think I can change any PHP settings but will > investigate. >> Oh my, you should not be doing this. If$_POST['sender'] contains a line
>> feed, anyone can use your server to send spam or anything they want:
>>
>> http://en.wikipedia.org/wiki/E-mail_injection
>
> Thank you for that warning. The 'From input' is a radio button choice so
> can not have a line-feed. Also the HTML form is behind .htaccess, not
> indexed and available only to me and the musical director. HOWEVER having
> read the article I will change over to Zend_Mail ASAP!

Álvaro is correct.  You must ALWAYS check user input.  Sure, the input
on your form is a radio button. But how do you know the input is coming
from YOUR form?  I could create a form containing anything I want and
direct it at your page.  It's a favorite trick of hackers.

NEVER trust user input!

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

 0
jstucklex (14659)
8/18/2010 12:54:14 PM
..oO(Derek Turner)

>On Wed, 18 Aug 2010 11:43:13 +0200, �lvaro G. Vicario wrote:
>
>>
>>
>> It can be easy to fix... or not. Your server has the Magic Quotes
>> feature enabled:
>>
>> http://es2.php.net/magic_quotes
>>
>> You can disable them as explained on the link.
>>
>I don't think I can: I don't think I can change any PHP settings but will
>investigate.

Then use get_magic_quotes_gpc() to check the setting and use
stripslashes() on your input data if necessary to get the raw values.

>> Oh my, you should not be doing this. If $_POST['sender'] contains a line >> feed, anyone can use your server to send spam or anything they want: >> >> http://en.wikipedia.org/wiki/E-mail_injection > >Thank you for that warning. The 'From input' is a radio button choice so >can not have a line-feed. It can. It doesn't matter if it's a radio button, checkbox or a hidden field. _Everything_ can be manipulated! I won't even have to use my own form to send arbitrary data to your script - there are tools and browser extensions available which allow exactly that. >Also the HTML form is behind .htaccess, not >indexed and available only to me and the musical director. This is no reason to not do it right! Maybe you want to use the same script again in some other public project later or the number of people which are allowed to use it increases. Just because a sloppily written scripts works for now doesn't mean it will still work in a year or so. Do it right, always! Even in an intranet or a protected area. And do it right from the beginning. Bad habits are hard to break. >HOWEVER having >read the article I will change over to Zend_Mail ASAP! PHPMailer might be an option as well. Micha   0 Michael 8/18/2010 1:24:01 PM Many thanks to all who helped. FWIW working, more secure script follows. <?php set_include_path(get_include_path() . PATH_SEPARATOR . '/home/cantabi1/ library'); include_once 'Zend/Mail.php'; if (get_magic_quotes_gpc()) {$sender =stripslashes( $_POST['sender']);$body = stripslashes($_POST['body']);$subject = stripslashes($_POST['subject']); } else {$sender = $_POST['sender'];$body = $_POST['body'];$subject = $_POST['subject']; } // now get mail recipients include("/home/cantabi1/admin_connect.php");$sql = "SELECT memberName, email\n"
. "FROM member\n"
. "WHERE active = 1 \n";

$result = mysql_query($sql, $conn) or die(mysql_error()); // and generate mail for each active member while ($row = mysql_fetch_assoc($result)) {$to = $row['email'];$message = "Dear " . $row['memberName'] . ",\n\n$body";

$mail = new Zend_Mail();$mail->setFrom($sender);$mail->addTo($to);$mail->setSubject($subject);$mail->setBodyText($message);$mail->addHeader('X-mailer', 'PHP '.phpversion());

if ($mail->send()) { echo "mail sent to " .$row['memberName'] . "<br/><br/>";
}
else {
echo "error in sending mail to " . $row['memberName'] . "<br/><br/ >"; } } //endwhile ?>   0 frderek (43) 8/18/2010 8:54:58 PM El 18/08/2010 13:18, Derek Turner escribió/wrote: > On Wed, 18 Aug 2010 11:43:13 +0200, Álvaro G. Vicario wrote: >> It can be easy to fix... or not. Your server has the Magic Quotes >> feature enabled: >> >> http://es2.php.net/magic_quotes >> >> You can disable them as explained on the link. >> > I don't think I can: I don't think I can change any PHP settings but will > investigate. Even the crappiest cheap hosting plans allow some sort of customization so you probably have an expensive enterprise plan ;-P >> Oh my, you should not be doing this. If$_POST['sender'] contains a line
>> feed, anyone can use your server to send spam or anything they want:
>>
>> http://en.wikipedia.org/wiki/E-mail_injection
>
> Thank you for that warning. The 'From input' is a radio button choice so
> can not have a line-feed. Also the HTML form is behind .htaccess, not
> indexed and available only to me and the musical director. HOWEVER having
> read the article I will change over to Zend_Mail ASAP!

mail() is fine for quick stuff, just make sure you validate whatever
goes in the $header parameter. -- -- http://alvaro.es - Álvaro G. Vicario - Burgos, Spain -- Mi sitio sobre programación web: http://borrame.com -- Mi web de humor satinado: http://www.demogracia.com --   0 8/19/2010 6:25:55 AM On Thu, 19 Aug 2010 08:25:55 +0200, "�lvaro G. Vicario" <alvaro.NOSPAMTHANX@demogracia.com.invalid> wrote: >> I don't think I can: I don't think I can change any PHP settings but will >> investigate. > >Even the crappiest cheap hosting plans allow some sort of customization For magic quotes? I doubt it. -- Geoff Berrow (Put thecat out to email) It's only Usenet, no one dies. My opinions, not the committee's, mine. Simple RFDs www.4theweb.co.uk/rfdmaker   0 Geoff 8/19/2010 7:37:10 AM El 19/08/2010 9:37, Geoff Berrow escribi�/wrote: > On Thu, 19 Aug 2010 08:25:55 +0200, "�lvaro G. Vicario" > <alvaro.NOSPAMTHANX@demogracia.com.invalid> wrote: > >>> I don't think I can: I don't think I can change any PHP settings but will >>> investigate. >> >> Even the crappiest cheap hosting plans allow some sort of customization > > For magic quotes? I doubt it. I meant crappy as in "cheap", not as in "GoDaddy". -- -- http://alvaro.es - �lvaro G. Vicario - Burgos, Spain -- Mi sitio sobre programaci�n web: http://borrame.com -- Mi web de humor satinado: http://www.demogracia.com --   0 8/19/2010 10:47:58 AM  Reply: Similar Artilces: 'is not' or '!=' A newbie question to you; what is the difference between statements like: if x is not None: and if x != None: Without any context, which one should be preferred? IMHO, the latter is more readable. On 2014-08-18 21:35, ElChino wrote: > A newbie question to you; what is the difference between statements > like: > if x is not None: > and > if x != None: > > Without any context, which one should be preferred? > IMHO, the latter is more readable. > "x == y" tells you whether x and y refer to objects that are equal. "x is y" tells you whether x and y actually refer to the same object. In the case of singletons like None (there's only one None object), it's better to use "is". "ElChino" <elchino@cnn.cn>: > A newbie question to you; what is the difference between statements > like: > if x is not None: > and > if x != None: Do the following: take two$10 bills. Hold one bill in the left hand, hold the other bill in the right hand. Now, the bill in the left hand "is not" the bill in the right hand. However, the bill in the left hand "==" the bill in the right hand. > Without any context, which one should be preferred? > IMHO, the latter is more readable. In almost all cases, both tests would result in the same behavior. However, the "is not" test is conceptually the correct one since you want...

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A function with 'and' , 'not' , 'null' , 'car' and 'cdr'
What's this ? (defun enigma (x) (and (not (null x)) (or (null (car x)) (enigma (cdr x))))) "I suppose I should learn Lisp, but it seems so foreign." - Paul Graham, Nov 1983 On Wed, Oct 07 2015, CAI GENGYANG wrote: > What's this ? > > > (defun enigma (x) > (and (not (null x)) > (or (null (car x)) > (enigma (cdr x))))) Bad taste? It returns T if the list X contains nil as an element. It would be clearer to write (some #'null x). Helmut CAI GENGYANG ...

error: expected '=', ',', ';', 'asm' or '__attrib
Hi I'm trying to compile an ADC Driver & come acrosss the following error. I've no experience writing drivers before, and hence have no clue how to fix it. Hope someone out there has encountered the problem & suggesst a fix for the same. The Error is I get is : qadc.c: At top level: qadc.c:97: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'qadc_read' make: *** [qadc.o] Error 1 [root@localhost qadc]# ########################################################################### ADC Driver Code ##...

error: expected '=', ',', ';', 'asm' or '__attrib
Hi I'm trying to compile an ADC Driver & come acrosss the following error. I've no experience writing drivers before, and hence have no clue how to fix it. Hope someone out there has encountered the problem & suggesst a fix for the same. The Error is I get is : qadc.c: At top level: qadc.c:97: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'qadc_read' make: *** [qadc.o] Error 1 [root@localhost qadc]# ########################################################################### ADC Driver Code ########################################################################### #define MODULE #define __KERNEL__ #include <linux/config.h> #include <linux/module.h> #include <linux/kernel.h> /* printk */ #include <linux/fs.h> / #include <linux/errno.h> /* error codes */ #include <linux/types.h> /* size_t */ #include <linux/proc_fs.h> /* proc file system */ #include <linux/fcntl.h> #include <asm/system.h> /* cli, flags */ #include <asm/uaccess.h> /* copy from/to user */ /*Registers to get qadc access*/ volatile unsigned short * qadcmcr = (unsigned short *)0x40190000; volatile unsigned short * qacr0 = (unsigned short *)0x4019000a; volatile unsigned short * qacr1 = (unsigned short *)0x4019000c; volatile unsigned short * qacr2 = (unsigned short *)0x4019000e; volatile unsigned short * qasr0 = (unsigned short *)0x40190010; volatile unsigned short * qasr1...

'<?' versus '<?php'
Hi folks, I recently ran into a PHP5 install that rejects the idiom, <? // code ? > and in fact renders that in the output that is sent to the browser. Yikes! The sysadmins could not say why this was but suggested it was a PHP5 thing. So my question to you: is <?php going to become required? And if it is will we not be allowed to echo by the shorthand <?php=$foo?> as we used to <?=$bar?> ? As that was broken too. Thanks for any advice, JG jerrygarciuh wrote: > Hi folks, > > I recently ran into a PHP5 install that rejects the idiom, <? // code ? >> and in fact renders that in the output that is sent to the browser. > Yikes! > > The sysadmins could not say why this was but suggested it was a PHP5 > thing. > > So my question to you: is <?php going to become required? And if it > is will we not be allowed to echo by the shorthand <?php=$foo?> as we > used to <?=$bar?> ? As that was broken too. > > Thanks for any advice, > > JG > This is PHP short_open_tag setting in your php.ini file. In PHP5 it is set to off. Off is recommended because the short tag can cause problems with xml, which uses the same tags. It also means you can't use the <?= syntax. On Apache, you can override this in your .htaccess file, if the host allows it. -- ================== Remove the "x" from my email address Jerry Stuckle JDS Computer Training Corp. jstucklex@attg...

'hi' i am the guy who hopes to 'get'
hi i am a puget sound 'front' welfare recipient i hope 'to get' so i bitch and moan and make a nuisance of myself i wish i could provide value but i can't so all i do is moan and whine On Sun, 27 Jul 2003 21:41:56 -0700, GreyCloud <cumulus@mist.com> wrote: >asso wrote: >> hi =20 >> i am a puget sound 'front' welfare recipient how sad. best to leave town, forever =20 >> i hope 'to get' ....there are Gift taxes =20 >> so i bitch and moan and make a nuisance of myself I'm not the only soul accused of hit-n-...

'[OFF]' as in 'offensive'???
Hi, given that 'off-topicness' is indicated as '[OT]' and taking a look at those postings that started the threads indicated as '[OFF]' (which may both be seen as being somewhat offensive) may lead to the conclusion that '[OFF]' stands for offensiveness. I don't think that this is the intended meaning so what actually *does* '[OFF]' mean? I never came across that abbreviation before (although I have been around on the USENET for quite some time) but maybe it is worth knowing? Josef 'Jupp' Schugt NOTE: mails >100 KiB are ignored -- German edition of comp.lang.ruby FAQ - http://oss.erdfunkstelle.de/ruby/ Aurox Linux - http://qurl.net/7q | http://qurl.net/7r - Firefox Thunderbird - http://qurl.net/7s | http://qurl.net/7t - Liferea Enigmail - http://qurl.net/7u | http://qurl.net/7v - GnuPG [Josef 'Jupp' Schugt <jupp@gmx.de>, 2004-12-10 23.20 CET] > I don't think that this is the intended meaning so what actually *does* > '[OFF]' mean? Off-topic. ...

'a'..'z'
Is it possible to achieve something like this? switch (mystring.charAt(0)) { case 'a'..'z': // do something break; } "cruster" <cruster@gmail.com> wrote in message news:1151319731.988814.326200@m73g2000cwd.googlegroups.com... > Is it possible to achieve something like this? > > switch (mystring.charAt(0)) { > case 'a'..'z': > // do something > break; > } > There are times when an if statement may be more appropriate ;) Sorry - java is not VB :) -- LTP :) cruster schreef: > Is it possible to achieve somethi...

Override 'and' and 'or'
Is it possible to override 'and' and/or 'or'? I cannot find a special method for it... __and__ and __rand__ and __or__ and __ror__ are for binary manipulation... any proposals? Have marvelous sunday, Marco Dekker <m.aschwanden@gmail.com> wrote: > Is it possible to override 'and' and/or 'or'? I cannot find a special > method for it... __and__ and __rand__ and __or__ and __ror__ are for > binary manipulation... any proposals? If you want to customize the truth value testing you have to implement __nonzero__ " __nonzero__( self) Call...

logical to 'on' / 'off'
Hi, is there a function implemented doing this conversion? my Problem is, that I want to use the following code: set(handles.edit_curr_trq_sl,'Enable',get(hObject,'Value')) where get(hObject,'Value') gives the state of a checkbox thank you! function [str]=tf2oo(logic) switch logic case 0 str='off'; case 1 str='on'; end%switch end%function tf2oo() while i do not know a built in function, I use my own:) meisterbartsch wrote: > > > function [str]=tf2oo(logic) > switch logic > case 0 > str='off'; &g...

Re: '^=' and '~='?
Duckhye, According to the doc ( http://xrl.us/befwjx ) they, and one other set of characters, and the mnemonic 'NE' all represent 'NOT EQUAL'. Art ------- On Wed, 11 Feb 2009 16:52:40 -0600, Duck-Hye Yang <dyang@CHAPINHALL.ORG> wrote: >Hello, >What is the difference between '^=' and '~='? > >Thanks, >Duckhye ...

replacement for '{' and '}' ?
I am still playing around with what kind of syntax I would like to mark up my documents. Are there equivalent long substitutes for { and } when they are not used to describe arguments to functions? Something like \begin{group} and \end{group}. In other words, if I could force myself to write, say, \begin{group} \it ... \end{group} instead of {\it ... }, then I believe I could identify from the markup context what is an argument that belongs to a just invoked macro and what is text. {Of course, in this context, \textit{...} would be better.} No more ambiguity whether a in \myfunction{a} is an argument or just text. Is there a way to make latex barf when it sees an ordinary '{' in text, rather than \begin{group}, but not barf when I want it (to denote macro arguments)? Regards, /iaw On Aug 16, 6:01=A0pm, "ivo...@gmail.com" <ivo...@gmail.com> wrote: > Is there a way to make latex barf when it sees an ordinary '{' in > text, rather than \begin{group}, but not barf when I want it (to > denote macro arguments)? What do you mean exactly? I don't understand. Do you have in mind your- to-be-new-syntax or just regular latex? Cheers, Tomek ivowel@gmail.com wrote: > I am still playing around with what kind of syntax I would like to > mark up my documents. > > Are there equivalent long substitutes for { and } when they are not > used to describe arguments to functions? Something like \begin{group} > and \end{gr...

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