[PATCH] vcs_info quilt: Document the '.quilt-foo' zstyle context element. (Compare users/20807.)

[Daniel Shahaf <d.s@xxxxxxxxxxxxxxxxxx>]

---
This documents the '.quilt-foo' element of vcs_info zstyle contexts.

The first hunk doesn't change the list of VCS identifiers, but applies
s/bf/tt/g to it in order to follow the `tt(literal)var(replaceable)'
convention, which is used by the two `tt(foo)var(bar)' instances added.

For context, users/20807 pointed out that hooks in quilt mode don't have
.quilt in their zstyle context.  I haven't changed it yet (even though
it's a simple patch: just change the assignment to $context in
VCS_INFO_hook) in order not to gratuitously break people's dotfiles; I just
added a warning about it.

Cheers,

Daniel

 Doc/Zsh/contrib.yo | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/Doc/Zsh/contrib.yo b/Doc/Zsh/contrib.yo
index 5d0696d..b71e0fb 100644
--- a/Doc/Zsh/contrib.yo
+++ b/Doc/Zsh/contrib.yo
@@ -944,11 +944,17 @@ example(:vcs_info:var(vcs-string):var(user-context):var(repo-root-name))
 
 startitem()
 item(var(vcs-string))(
-is one of: bf(git), bf(git-svn), bf(git-p4), bf(hg), bf(hg-git),
-bf(hg-hgsubversion), bf(hg-hgsvn), bf(darcs), bf(bzr), bf(cdv), bf(mtn),
-bf(svn), bf(cvs), bf(svk), bf(tla), bf(p4) or bf(fossil). When hooks are
-active the hooks name is added after a `+'. (See bf(Hooks in vcs_info)
-below.)
+is one of: tt(git), tt(git-svn), tt(git-p4), tt(hg), tt(hg-git),
+tt(hg-hgsubversion), tt(hg-hgsvn), tt(darcs), tt(bzr), tt(cdv), tt(mtn),
+tt(svn), tt(cvs), tt(svk), tt(tla), tt(p4) or tt(fossil).
+This is followed by `tt(.quilt-)var(quilt-mode)' in Quilt mode
+(see bf(Quilt Support) for details)
+and by `tt(+)var(hook-name)' while hooks are active
+(see bf(Hooks in vcs_info) for details).
+
+COMMENT(users/20807)
+Currently, hooks in quilt mode don't add the `tt(.quilt-)var(quilt-mode)' information.
+This may change in the future.
 )
 item(var(user-context))(
 is a freely configurable string, assignable by
@@ -1369,6 +1375,11 @@ Quilt integration is off by default; to enable it, set the tt(use-quilt) style,
 and add tt(%Q) to your tt(formats) or tt(actionformats) style:
 example(zstyle ':vcs_info:*' use-quilt true)
 
+Styles looked up from the Quilt support code include `tt(.quilt-)var(quilt-mode)'
+in the var(vcs-string) part of the context, where var(quilt-mode) is either
+tt(addon) or tt(standalone).
+Example: tt(:vcs_info:git.quilt-addon:default:)var(repo-root-name).
+
 For `addon' mode to become active tt(vcs_info) must have already detected a
 real version control system controlling the directory. If that is the case,
 a directory that holds quilt's patches needs to be found. That directory is