qapi/block-core.json: Use literal block for ascii art

The ascii-art graph in the BlockLatencyHistogramInfo documentation
doesn't render correctly, because the whitespace is collapsed.

Use the '|' format that emits a literal 'example' block so the graph
is displayed correctly.

Strictly the Texinfo generated is still wrong because each line
goes into its own @example environment, but it renders better
than what we had before.

Fixing this rendering is a necessary prerequisite for the upcoming rST
generator, which otherwise complains about the inconsistent
indentation in the ascii-art graph.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200213175647.17628-8-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Peter Maydell 2020-02-13 17:56:24 +00:00 committed by Markus Armbruster
parent a7b6e89641
commit 0a940d66de
1 changed files with 7 additions and 7 deletions

View File

@ -550,13 +550,13 @@
# For the example above, @bins may be something like [3, 1, 5, 2],
# and corresponding histogram looks like:
#
# 5| *
# 4| *
# 3| * *
# 2| * * *
# 1| * * * *
# +------------------
# 10 50 100
# | 5| *
# | 4| *
# | 3| * *
# | 2| * * *
# | 1| * * * *
# | +------------------
# | 10 50 100
#
# Since: 4.0
##