example sugar script 'continuation-lines' added

src/syntactic-sugar/continuation-lines

@@ -0,0 +1,34 @@
+# vim: syn=perl:
+
+# "sugar script" (syntactic sugar helper) for gitolite3
+
+# Enabling this script in the rc file allows you to use back-slash escaped
+# continuation lines, like in C or shell etc.
+
+# This script also serves as an example "sugar script" if you want to write
+# your own (and maybe send them to me).  A "sugar script" in gitolite will be
+# executed via a perl 'do' and is expected to contain one function called
+# 'sugar_script'.  This function should take a listref and return a listref.
+# Each item in the list is one line.  There are NO newlines; g3 kills them off
+# fairly early in the process.
+
+# If you're not familiar with perl please do not try this.  Ask me to write
+# you a sugar script instead.
+
+sub sugar_script {
+    my $lines = shift;
+
+    my @out = ();
+    my $keep = '';
+    for my $l (@$lines) {
+        if ($l =~ s/\\$//) {
+            $keep .= $l;
+        } else {
+            $l = $keep . $l if $keep;
+            $keep = '';
+            push @out, $l;
+        }
+    }
+
+    return \@out;
+}