Empty lines in pre-blocks are not preserved in FullBlogPlugin

[Artem Egorkine]

When creating posts that contain preformatted text blocks (such as code) that are encapsulated in '' and '' marks, empty lines are not preserved when the post is being displayed.

Here is a simple test post:

This is a test to check how Trac preserves line breaks.

This line should be on it's own.

This line and
this line are concatenated.

{{{
These lines should be separated by one empty line.

These lines should be separated by one empty line.

These lines should be separated by one empty line.
}}}

[Artem Egorkine]

A screen shot of how the sample post is rendered in a wiki page.

[Artem Egorkine]

A screen shot of how the sample post is rendered in a blog page.

[Artem Egorkine]

The HTML output for a wiki page.

[Artem Egorkine]

The HTML output for a blog page.

[Artem Egorkine]

This is observed using a fresh Trac setup with all the latest components:

• Trac 0.11.2.1
• TagsPlugin 0.6 r5203
• FullBlogPlugin r5070

[osimons]

Hmm. Testing on a slightly older Trac 0.11 shows no such problems. I have a feeling this is related to recent introduction of preserve_newlines rendering hints.

For comparison, could you also provide the result of putting the wiki markup into a new ticket description?

[Artem Egorkine]

A screen shot of how the sample post is rendered in a ticket page.

[Artem Egorkine]

The HTML output for a ticket page.

[Artem Egorkine]

The HTML output for a ticket page.

[Artem Egorkine]

The ticket page seems to render the text correctly.

[osimons]

(In [5204]) FullBlogPlugin: Fix for a change in pre-formatted newline handling that seems to have sneaked into a recent Trac 0.11.x. Closes #4588.