215131 - Plain text wrapping is not done properly according to wraplength setting

Status: RESOLVED DUPLICATE of bug 223276

(MailNews Core :: Composition, defect)

Description

[Edoardo Tirtarahardja]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax)

When wrapping a plain text message, a line with more characters then the
wraplength setting is not truncated if there is no space in that line. Also
eventhough the wrapping in the display is done correctly in the exact no.
characters according to the wraplength setting, the actual wrapping is off by 4
more characters. If the setting is 74 characters then it will actually wrap on
78 characters. I tried with the setting of 70 characters and it wraps on 74
characters.

Reproducible: Always

Steps to Reproduce:
1. Set the composition to wrap the plain text at 74 characters.
   user_pref("mailnews.wraplength", 74);
2. Turn off format=flowed mail sending.
   user_pref("mailnews.send_plaintext_flowed", false);
3. Compose a new plain text message.
4. Write these lines down.
12345678901234567890123456789012345678901234567890123456789012345678901234567890
12345678901234567890123456789012345678901234567890123456789012345678901234 6
12345678901234567890123456789012345678901234567890123456789012345678901234 67
12345678901234567890123456789012345678901234567890123456789012345678901234 678
12345678901234567890123456789012345678901234567890123456789012345678901234 6789
5. In the composition display, it will look like this.
12345678901234567890123456789012345678901234567890123456789012345678901234567890
12345678901234567890123456789012345678901234567890123456789012345678901234 6
12345678901234567890123456789012345678901234567890123456789012345678901234 67
12345678901234567890123456789012345678901234567890123456789012345678901234 678
12345678901234567890123456789012345678901234567890123456789012345678901234
6789
6. Save the mail to Draft of Send it to your self.
7. Open the mail and press Ctrl+U to see the message source. And this is what it
will look like.
12345678901234567890123456789012345678901234567890123456789012345678901234567890
12345678901234567890123456789012345678901234567890123456789012345678901234 6
12345678901234567890123456789012345678901234567890123456789012345678901234 67
12345678901234567890123456789012345678901234567890123456789012345678901234 678
12345678901234567890123456789012345678901234567890123456789012345678901234
6789

Actual Results:  
The plain text line with length more than 74 characters without any space is not
wrapped / truncated.
The plain text line with space is actually truncated at 78 characters.


Expected Results:  
The plain text line that contain more characters that wraplength setting without
space should be truncated.
The plain text line with space should be wrapped at the exact no. of characters
as specified by wraplength setting.

Comment 1

[Mike Cowperthwaite]

*** This bug has been marked as a duplicate of 212977 ***

Comment 2

[Mike Cowperthwaite]

Sorry, wrong bug to dupe

Comment 3

[Mike Cowperthwaite]

This is the duplicate I meant.

*** This bug has been marked as a duplicate of 223276 ***