228795 - Preformatted CDATA is displayed incorrectly

Status: RESOLVED INVALID

(Core :: Layout, defect)

Description

[Sergiy Kyrylkov]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6b) Gecko/20031216 Firebird/0.7+
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6b) Gecko/20031216 Firebird/0.7+

this preformatted CDATA xml code is displayed incorrectly:

<?xml version='1.0' encoding='utf-8'?>

<!-- A SAMPLE set of slides -->

<slideshow
  title="Sample Slide Show"
  date="Date of publication"
  author="Yours Truly"
  >

  <slide type="tech">
    <title>How it Works</title>
    <item>First we fozzle the frobmorten</item>
    <item>Then we framboze the staten</item>
    <item>Finally, we frenzle the fuznaten</item>
    <item><![CDATA[Diagram:
      frobmorten <--------------- fuznaten
         | <3>^
         | <1>| <1> = fozzle
         V | <2> = framboze
         Staten--------------------+<3> = frenzle
            <2>
    ]]></item>
  </slide>
</slideshow>


Firebird displays CDATA like:

Diagram: frobmorten <--------------- fuznaten | <3>^ | <1>| <1> = fozzle V | <2>
= framboze Staten--------------------+<3> = frenzle <2>


instead of:


Diagram:
      frobmorten <--------------- fuznaten
         | <3>^
         | <1>| <1> = fozzle
         V | <2> = framboze
         Staten--------------------+<3> = frenzle
            <2>

Reproducible: Always

Steps to Reproduce:
1.
2.
3.

Actual Results:  
Diagram: frobmorten <--------------- fuznaten | <3>^ | <1>| <1> = fozzle V | <2>
= framboze Staten--------------------+<3> = frenzle <2>

Expected Results:  
Diagram:
      frobmorten <--------------- fuznaten
         | <3>^
         | <1>| <1> = fozzle
         V | <2> = framboze
         Staten--------------------+<3> = frenzle
            <2>

Comment 1

[Jason Barnabe (np)]

http://www.w3.org/TR/REC-html40/types.html#h-6.2

CDATA is a sequence of characters from the document character set and may
include character entities. User agents should interpret attribute values as
follows:

    * Replace character entities with characters,
    * Ignore line feeds,
    * Replace each carriage return or tab with a single space.

User agents may ignore leading and trailing white space in CDATA attribute
values (e.g., "   myval   " may be interpreted as "myval"). Authors should not
declare attribute values with leading or trailing white space.

Comment 2

[Asa Dotzler [:asa]]

so this is't a bug? if it is, it certainly isn't Firefox. ->Layout.

Comment 3

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

comment 1 is irrelevant, it's quoting HTML on an XML bug.

However, it's invalid anyway.  CDATA may mean that everything is preserved in
the DOM, but it doesn't set the CSS 'white-space' property.  You need to do that
yourself.