Re: The less sign "<" in script elements

Path	csiph.com!aioe.org!news.mb-net.net!open-news-network.org!.POSTED.112.228.197.178.dynamic.wless.zhbmb00p-cgnat.res.cust.swisscom.ch!not-for-mail
From	Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups	comp.lang.javascript
Subject	Re: The less sign "<" in script elements
Date	Mon, 19 Mar 2018 03:47:17 +0100
Organization	PointedEars Software (PES)
Lines	48
Message-ID	<6800844.EvYhyI6sBW@PointedEars.de> (permalink)
References	<less-20180318165920@ram.dialup.fu-berlin.de> <slrnpatp5k.4an.jon+usenet@sable.unequivocal.eu>
Reply-To	Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
Mime-Version	1.0
Content-Type	text/plain; charset="UTF-8"
Content-Transfer-Encoding	8Bit
Injection-Info	gwaiyur.mb-net.net; posting-host="112.228.197.178.dynamic.wless.zhbmb00p-cgnat.res.cust.swisscom.ch:178.197.228.112"; logging-data="4050"; mail-complaints-to="abuse@open-news-network.org"
User-Agent	KNode/4.14.2
X-User-ID	U2FsdGVkX1/sqDdHOUr6MpSd2kNMArtKZaQCk2sqZ0QILnQar1L8nw==
Face	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
X-Face	%i>XG-yXR'\"2P/C_aO%~;2o~?g0pPKmbOw^=NT`tprDEf++D.m7"}HW6.#=U:?2GGctkL,f89@H46O$ASoW&?s}.k+&.<b';Md8`dH6iqhT)6C^.Px\|[=M@7=Ik[_w<%n1Up"LPQNu2m8\|L!/3iby{-]A+#YE}Kl{Cw$\U!kD%K}\2jz"QQP6Uqr],./"?;=4v
Cancel-Lock	sha1:w/s5yUCaAyKTahOTJaU/cpJu2N8=
Xref	csiph.com comp.lang.javascript:34795

Show key headers only | View raw

Jon Ribbens wrote:

> On 2018-03-18, Stefan Ram <ram@zedat.fu-berlin.de> wrote:
>>   I remember that there was a time when I had to escape a
>>   less-sign "<" that was contained within a script element.
> 
> As far as I am aware there was never such a time, unless perhaps
> for compatibility with broken browsers. It may well have been
> (and still is) something people did to be cautious, but the contents
> of <script> tags should be taken literally until at least a '</'
> followed by an alphabetic character is reached.

Nonsense.
 
> Some browsers which didn't understand the '<script>' tag
> probably have had lax comment parsing, so the technique of
> prefixing the script with '<!--' wouldn't work unless you
> also avoided the '<' character. The days are long gone that
> you need to worry about that though.

Nonsense.
 
>>   I assume that this is not necessary anymore in HTML5,
>>   while »CDATA« must be used in XHTML, including XHTML5.
> 
> In

… the HTML syntax of …

> HTML5 you need to avoid '<!--', '<script' and '</script'.

… within “script” elements.
 
>>   So, is my memory correct that in HTML 2, HTML 3 and/or
>>   HTML 4, one had to escape a less sign in a script element,
>>   using, e.g., »&#60;«? E.g., for a comparison like »x<y«?
> 
> No - HTML 2 didn't have <script>, and in HTML 3 and 4 its
> contents are CDATA so you can't use entities. You'd need to
> escape '<' using a JavaScript method instead, like '\x3c',
> and avoiding comparing things to be less than ;-)

Nonsense.

-- 
PointedEars
FAQ: <http://PointedEars.de/faq> | <http://PointedEars.de/es-matrix>
<https://github.com/PointedEars> | <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | Please do not cc me./Bitte keine Kopien per E-Mail.

Thread

Re: The less sign "<" in script elements Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-03-18 22:14 +0000
  Re: The less sign "<" in script elements Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-19 03:47 +0100
    Re: The less sign "<" in script elements Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-03-19 13:47 +0000
      Re: The less sign "<" in script elements Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-19 21:37 +0100
        Re: The less sign "<" in script elements Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-03-19 23:23 +0000
          Re: The less sign "<" in script elements Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-20 00:41 +0100
            Re: The less sign "<" in script elements Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-03-20 11:36 +0000
              Re: The less sign "<" in script elements Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-20 13:56 +0100
                Re: The less sign "<" in script elements Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-03-20 13:21 +0000
                Re: The less sign "<" in script elements Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-20 16:45 +0100
                Re: The less sign "<" in script elements Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-03-20 16:05 +0000
                Re: The less sign "<" in script elements Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-20 18:09 +0100

csiph-web