docs: monospace listings in docbook output

When asciidoc converts a listing block like:

----------------------
$ git log --merge
----------------------

it marks it to be displayed in a monospace font. This works
fine when generating HTML output. However, when generating
docbook output, we override the expansion of a listingblock
to work around bugs in some versions of the docbook
toolchain. Our override did not mark the listingblock with
the "monospaced" class.

The main output that uses docbook as an intermediate format
is the manpages. We didn't notice any issue there because
the monospaced class seems to be ignored when generating
roff from the docbook manpages.

However, when generating texinfo to make info pages, docbook
does respect this class. The resulting texinfo output
properly uses "@example" blocks to display the listing in
this case. Besides possibly looking prettier in some texinfo
backends,  one important effect is that the monospace font
suppresses texinfo's expansion of "--" and "---" into
en-dashes and em-dashes.  With the current code, the example
above ends up looking like "git log -merge", which is
confusing and wrong.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/asciidoc.conf b/Documentation/asciidoc.conf
index aea8627be088c58ef9ad7fd07f5498da88d9b1fc..8befd1de6eb6a0c034d026c4683a01b15e9cc719 100644 (file)
--- a/Documentation/asciidoc.conf
+++ b/Documentation/asciidoc.conf
@@ -36,7 +36,7 @@ ifndef::git-asciidoc-no-roff[]
 # v1.72 breaks with this because it replaces dots not in roff requests.
 [listingblock]
 <example><title>{title}</title>
-<literallayout>
+<literallayout class="monospaced">
 ifdef::doctype-manpage[]
 &#10;.ft C&#10;
 endif::doctype-manpage[]
@@ -53,7 +53,7 @@ ifdef::doctype-manpage[]
 # The following two small workarounds insert a simple paragraph after screen
 [listingblock]
 <example><title>{title}</title>
-<literallayout>
+<literallayout class="monospaced">
 |
 </literallayout><simpara></simpara>
 {title#}</example>

diff --git a/Documentation/user-manual.conf b/Documentation/user-manual.conf
index 339b30919e6cd9791a5cc30b93395a88fb5e9d96..d87294de2f54c354c6215fb6029a182c966d6b2e 100644 (file)
--- a/Documentation/user-manual.conf
+++ b/Documentation/user-manual.conf
@@ -14,7 +14,7 @@ ifdef::backend-docbook[]
 # "unbreak" docbook-xsl v1.68 for manpages. v1.69 works with or without this.
 [listingblock]
 <example><title>{title}</title>
-<literallayout>
+<literallayout class="monospaced">
 |
 </literallayout>
 {title#}</example>