1 files changed, 188 insertions, 0 deletions
diff --git a/contrib/ntp/sntp/ag-tpl/0-old/perlopt.tpl b/contrib/ntp/sntp/ag-tpl/0-old/perlopt.tpl
new file mode 100644
index 000000000000..c4fd695838a5
--- /dev/null
+++ b/contrib/ntp/sntp/ag-tpl/0-old/perlopt.tpl
@@ -0,0 +1,188 @@
+[= AutoGen5 template foo=(base-name) -*- Mode: scheme -*-=]
+[=
+
+(emit (dne "# "))
+
+(if (not (and (exist? "prog-name") (exist? "prog-title") (exist? "version")))
+    (error "prog-name and prog-title are required"))
+(define prog-name (get "prog-name"))
+
+(if (> (string-length prog-name) 16)
+    (error (sprintf "prog-name limited to 16 characters:  %s"
+           prog-name)) )
+(if (not (exist? "long-opts"))
+    (error "long-opts is required"))
+
+;; perl list containing string to initialize the option hash
+(define perl_opts "")
+;; perl list containing option definitions for Getopt::Long
+(define perl_defs "       ")
+;; usage string
+(define perl_usage "")
+
+(define optname-from "A-Z_^")
+(define optname-to   "a-z--")
+(define counter 0)
+
+(define q (lambda (s) (string-append "'" s "'")))
+(define qp (lambda (s) (string-append "q{" s "}")))
+
+=][=
+
+FOR flag =][=
+
+(define optarg "")      ;; the option argument for Getopt::Long
+(define opttarget "''") ;; the value of a hash key that represents option
+(define optargname "")
+(define optisarray #f)
+(define optname (string-tr! (get "name") optname-from optname-to))
+
+=][= #
+;; since autoopts doesn't support float we take the combination arg-name =
+;; float and arg-type = string as float
+=][=
+  IF arg-type       =][=
+    CASE arg-type   =][=
+
+    =* num          =][= (set! optarg "=i") =][=
+
+    =* str          =][=
+        (if (and (exist? "arg-name") (== (get "arg-name") "float"))
+            (set! optarg "=f")
+            (set! optarg "=s")
+        )           =][=
+
+    *               =][=
+        (error (string-append "unknown arg type '"
+        (get "arg-type") "' for " (get "name"))) =][=
+    ESAC arg-type   =][=
+  ENDIF             =][=
+
+(if (exist? "stack-arg")
+    ;; set optarget to array reference if can take more than one value
+    ;;  FIXME:  if "max" exists, then just presume it is greater than 1
+    ;;
+    (if (and (exist? "max") (== (get "max") "NOLIMIT"))
+        (begin
+          (set! opttarget (string-append
+            "["
+            (if (exist? "arg-default") (q (get "arg-default")) "")
+            "]"
+            )
+          )
+          (set! optisarray #t)
+        )
+        (error "If stack-arg then max has to be NOLIMIT")
+    )
+    ;; just scalar otherwise
+    (if (exist? "arg-default") (set! opttarget (q (get "arg-default"))))
+)
+
+(set! perl_opts (string-append perl_opts
+      "'" (get "name") "' => " opttarget ",\n        "))
+
+(define def_add (string-append "'" optname (if (exist? "value")
+                  (string-append "|" (get "value")) "") optarg "',"))
+
+(define add_len (+ (string-length def_add) counter))
+(if (> add_len 80)
+    (begin
+      (set! perl_defs (string-append perl_defs "\n        " def_add))
+      (set! counter 8)
+    )
+    (begin
+      (set! perl_defs (string-append perl_defs " " def_add))
+      (set! counter (+ counter add_len))
+    )
+)
+
+(if (exist? "arg-type")
+    (if (and (exist? "arg-name") (== (get "arg-name") "float"))
+        (set! optargname "=float")
+        (set! optargname (string-append "=" (substring (get "arg-type") 0 3)))
+    )
+    (set! optargname "  ")
+)
+
+(if (not (exist? "deprecated"))
+    (set! perl_usage (string-append perl_usage
+       (sprintf "\n    %-28s %s" (string-append
+            (if (exist? "value") (string-append "-" (get "value") ",") "   ")
+            " --"
+            (get "name")
+            optargname)
+         (get "descrip"))
+)   )  )
+(if optisarray
+  (set! perl_usage (string-append perl_usage
+        "\n                                   - may appear multiple times"))
+)
+
+=][=
+
+ENDFOR each "flag" =]
+
+use Getopt::Long qw(GetOptionsFromArray);
+Getopt::Long::Configure(qw(no_auto_abbrev no_ignore_case_always));
+
+my $usage;
+
+sub usage {
+    my ($ret) = @_;
+    print STDERR $usage;
+    exit $ret;
+}
+
+sub paged_usage {
+    my ($ret) = @_;
+    my $pager = $ENV{PAGER} || '(less || more)';
+
+    open STDOUT, "| $pager" or die "Can't fork a pager: $!";
+    print $usage;
+
+    exit $ret;
+}
+
+sub processOptions {
+    my $args = shift;
+
+    my $opts = {
+        [= (. perl_opts) =]'help' => '', 'more-help' => ''
+    };
+    my $argument = '[= argument =]';
+    my $ret = GetOptionsFromArray($args, $opts, (
+[= (. perl_defs) =]
+        'help|?', 'more-help'));
+
+    $usage = <<'USAGE';
+[= prog-name =] - [= prog-title =] - Ver. [= version =]
+USAGE: [= prog-name =] [ -<flag> [<val>] | --<name>[{=| }<val>] ]... [= argument =]
+[= (. perl_usage)   =]
+    -?, --help                   Display usage information and exit
+        --more-help              Pass the extended usage information through a pager
+
+Options are specified by doubled hyphens and their name or by a single
+hyphen and the flag character.
+USAGE
+
+    usage(0)       if $opts->{'help'};
+    paged_usage(0) if $opts->{'more-help'};[=
+
+CASE argument       =][=
+!E                  =][=
+==* "["             =][=
+*                   =]
+
+    if ($argument && $argument =~ /^[^\[]/ && !@$args) {
+        print STDERR "Not enough arguments supplied (See --help/-?)\n";
+        exit 1;
+    }[=
+
+ESAC
+
+=]
+    $_[0] = $opts;
+    return $ret;
+}
+
+END { close STDOUT };