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-bundle.txt b/Documentation/git-bundle.txt
index 92b01ec25d..16a6b0aceb 100644
--- a/Documentation/git-bundle.txt
+++ b/Documentation/git-bundle.txt
@@ -61,7 +61,7 @@ unbundle <file>::
 	A list of arguments, acceptable to 'git rev-parse' and
 	'git rev-list' (and containing a named ref, see SPECIFYING REFERENCES
 	below), that specifies the specific objects and references
-	to transport.  For example, `master{tilde}10..master` causes the
+	to transport.  For example, `master~10..master` causes the
 	current master reference to be packaged along with all objects
 	added since its 10th ancestor commit.  There is no explicit
 	limit to the number of references and objects that may be
@@ -80,12 +80,12 @@ SPECIFYING REFERENCES
 
 'git bundle' will only package references that are shown by
 'git show-ref': this includes heads, tags, and remote heads.  References
-such as `master{tilde}1` cannot be packaged, but are perfectly suitable for
+such as `master~1` cannot be packaged, but are perfectly suitable for
 defining the basis.  More than one reference may be packaged, and more
 than one basis can be specified.  The objects packaged are those not
 contained in the union of the given bases.  Each basis can be
-specified explicitly (e.g. `^master{tilde}10`), or implicitly (e.g.
-`master{tilde}10..master`, `--since=10.days.ago master`).
+specified explicitly (e.g. `^master~10`), or implicitly (e.g.
+`master~10..master`, `--since=10.days.ago master`).
 
 It is very important that the basis used be held by the destination.
 It is okay to err on the side of caution, causing the bundle file