[PATCH] Highlight keyboard shortcuts in git-add--interactive

[Wincent Colaiuta <win@wincent.com>]

The user interface provided by the command loop in git-add--interactive
gives the impression that subcommands can only be launched by entering
an integer identifier from 1 through 8.

A "hidden" feature is that any string can be entered, and an anchored
regex search is used to find the first matching option.

This patch makes this feature a little more obvious by highlighting the
first character of each subcommand (for example "patch" is displayed as
"[p]atch"). The mechanism for doing this is to add an optional third
element to the array defining each subcommand; if present, it will be
used for display purposes, while the actual name of the subcommand (the
first element) is still used for matching purposes.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
---

And another thought: if the colorization for git-add--interactive goes
ahead, we could drop the square brackets used here in favor of underline
or boldface, if people find that more attractive.

 git-add--interactive.perl |   18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/git-add--interactive.perl b/git-add--interactive.perl
index 0317ad9..2b1c55a 100755
--- a/git-add--interactive.perl
+++ b/git-add--interactive.perl
@@ -179,7 +179,7 @@ sub list_and_choose {
 			my $print = $stuff[$i];
 			if (ref $print) {
 				if ((ref $print) eq 'ARRAY') {
-					$print = $print->[0];
+					$print = $print->[2] || $print->[0];
 				}
 				else {
 					$print = $print->{PRINT};
@@ -774,14 +774,14 @@ EOF
 }
 
 sub main_loop {
-	my @cmd = ([ 'status', \&status_cmd, ],
-		   [ 'update', \&update_cmd, ],
-		   [ 'revert', \&revert_cmd, ],
-		   [ 'add untracked', \&add_untracked_cmd, ],
-		   [ 'patch', \&patch_update_cmd, ],
-		   [ 'diff', \&diff_cmd, ],
-		   [ 'quit', \&quit_cmd, ],
-		   [ 'help', \&help_cmd, ],
+	my @cmd = ([ 'status', \&status_cmd, '[s]tatus', ],
+		   [ 'update', \&update_cmd, '[u]date', ],
+		   [ 'revert', \&revert_cmd, '[r]evert', ],
+		   [ 'add untracked', \&add_untracked_cmd, '[a]dd untracked', ],
+		   [ 'patch', \&patch_update_cmd, '[p]atch', ],
+		   [ 'diff', \&diff_cmd, '[d]iff', ],
+		   [ 'quit', \&quit_cmd, '[q]uit', ],
+		   [ 'help', \&help_cmd, '[h]elp', ],
 	);
 	while (1) {
 		my ($it) = list_and_choose({ PROMPT => 'What now',
-- 
1.5.3.6.866.g67e44