Jeanne Waldman created MYFACES-3690:
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Summary: Trinidad doesn't support surrogate characters
Key: MYFACES-3690
URL: https://issues.apache.org/jira/browse/MYFACES-3690
Project: MyFaces Core
Issue Type: Bug
Reporter: Jeanne Waldman
Assignee: Jeanne Waldman
[Problem Description:]
Create a simple jsf page as below:
<tr:inputText label="Label 1" id="it1"/>
<tr:commandButton text="commandButton 1" id="cb1"/>
In IE7, when we enter a surrogate character, then click submit button,
surrogate character can be correctly displayed when page rendered.
While in FF3, the surrogate character are displayed as 2 characters after
clicked the submit button.
NOTE: If using pre 7 jetty, the surrogate char will disappear (bug in jetty). I
had to use JDeveloper to reproduce.
[Test Data:]
You can copy a sample surrogate character from:
http://www.unicode.org/cgi-bin/GetUnihanData.pl?codepoint=%F0%A0%80%80
Note: You must install surrogate font in your env to display the surrogate
characters.
[Analysis:]
Check the html source of generated page, the surrogate character is written
into 2 decimal value '��', and Firefox can't recognize these 2
Decimal value as a single surrogate character.
While in IE, it can recognize these 2 decimal value represent a single
surrogate character.
According to
http://www.unicode.org/cgi-bin/GetUnihanData.pl?codepoint=%F0%A0%80%80, the
decimal value for this surrogate character is 131072, if in html source code,
we write "𠀀" instead of '��', the surrogate character
can display well in both IE7 and FF3.
Fix:
The fix is to HTMLEscapes and XMLEscapes. if char is high-surrogate, use
Character.getCodePoint and encode that.
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