docs: stop using asciidoc no-inline-literal

In asciidoc 7, backticks like `foo` produced a typographic
effect, but did not otherwise affect the syntax. In asciidoc
8, backticks introduce an "inline literal" inside which markup
is not interpreted. To keep compatibility with existing
documents, asciidoc 8 has a "no-inline-literal" attribute to
keep the old behavior. We enabled this so that the
documentation could be built on either version.

It has been several years now, and asciidoc 7 is no longer
in wide use. We can now decide whether or not we want
inline literals on their own merits, which are:

  1. The source is much easier to read when the literal
     contains punctuation. You can use `master~1` instead
     of `master{tilde}1`.

  2. They are less error-prone. Because of point (1), we
     tend to make mistakes and forget the extra layer of
     quoting.

This patch removes the no-inline-literal attribute from the
Makefile and converts every use of backticks in the
documentation to an inline literal (they must be cleaned up,
or the example above would literally show "{tilde}" in the
output).

Problematic sites were found by grepping for '`.*[{\\]' and
examined and fixed manually. The results were then verified
by comparing the output of "html2text" on the set of
generated html pages. Doing so revealed that in addition to
making the source more readable, this patch fixes several
formatting bugs:

  - HTML rendering used the ellipsis character instead of
    literal "..." in code examples (like "git log A...B")

  - some code examples used the right-arrow character
    instead of '->' because they failed to quote

  - api-config.txt did not quote tilde, and the resulting
    HTML contained a bogus snippet like:

      <tt><sub></tt> foo <tt></sub>bar</tt>

    which caused some parsers to choke and omit whole
    sections of the page.

  - git-commit.txt confused ``foo`` (backticks inside a
    literal) with ``foo'' (matched double-quotes)

  - mentions of `A U Thor <author@example.com>` used to
    erroneously auto-generate a mailto footnote for
    author@example.com

  - the description of --word-diff=plain incorrectly showed
    the output as "[-removed-] and {added}", not "{+added+}".

  - using "prime" notation like:

      commit `C` and its replacement `C'`

    confused asciidoc into thinking that everything between
    the first backtick and the final apostrophe were meant
    to be inside matched quotes

  - asciidoc got confused by the escaping of some of our
    asterisks. In particular,

      `credential.\*` and `credential.<url>.\*`

    properly escaped the asterisk in the first case, but
    literally passed through the backslash in the second
    case.

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

1 files changed, 4 insertions, 4 deletions

diff --git a/Documentation/git-remote-helpers.txt b/Documentation/git-remote-helpers.txt
index 674797cd83..f5836e46d0 100644
--- a/Documentation/git-remote-helpers.txt
+++ b/Documentation/git-remote-helpers.txt
@@ -87,7 +87,7 @@ to the `capabilities` command (see COMMANDS, below).
 	capability use this.
 +
 A helper advertising the capability
-`refspec refs/heads/{asterisk}:refs/svn/origin/branches/{asterisk}`
+`refspec refs/heads/*:refs/svn/origin/branches/*`
 is saying that, when it is asked to `import refs/heads/topic`, the
 stream it outputs will update the `refs/svn/origin/branches/topic`
 ref.
@@ -96,7 +96,7 @@ This capability can be advertised multiple times.  The first
 applicable refspec takes precedence.  The left-hand of refspecs
 advertised with this capability must cover all refs reported by
 the list command.  If no 'refspec' capability is advertised,
-there is an implied `refspec {asterisk}:{asterisk}`.
+there is an implied `refspec *:*`.
 
 Capabilities for Pushing
 ~~~~~~~~~~~~~~~~~~~~~~~~
@@ -148,7 +148,7 @@ Other frontends may have some other order of preference.
 	This modifies the 'import' capability.
 +
 A helper advertising
-`refspec refs/heads/{asterisk}:refs/svn/origin/branches/{asterisk}`
+`refspec refs/heads/*:refs/svn/origin/branches/*`
 in its capabilities is saying that, when it handles
 `import refs/heads/topic`, the stream it outputs will update the
 `refs/svn/origin/branches/topic` ref.
@@ -157,7 +157,7 @@ This capability can be advertised multiple times.  The first
 applicable refspec takes precedence.  The left-hand of refspecs
 advertised with this capability must cover all refs reported by
 the list command.  If no 'refspec' capability is advertised,
-there is an implied `refspec {asterisk}:{asterisk}`.
+there is an implied `refspec *:*`.
 
 INVOCATION
 ----------