#!/usr/bin/perl

#
# make-test-arrays
#
# Given a test-arrays file, which specifies the test suite names, the
# names of the functions which perform those test suites, and
# descriptive comments, this script generates C structures for the
# mpi-test program.  The input consists of lines of the form:
#
# suite-name:function-name:comment
#
# The output is written to the standard output.  Blank lines are
# ignored, and comments beginning with '#' are stripped.

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# Read parameters from the environment, if available
$NAMEVAR = $ENV{'NAMEVAR'} || "g_names";
$COUNTVAR = $ENV{'COUNTVAR'} || "g_count";
$FUNCVAR = $ENV{'FUNCVAR'} || "g_tests";
$DESCVAR = $ENV{'DESCVAR'} || "g_descs";
$FUNCLEN = 13;
$NAMELEN = 18;
$DESCLEN = 45;

#------------------------------------------------------------------------
# Suck in input from the files on the command line, or standard input
while(<>) {
    chomp;
    s/\#.*$//;
    next if /^\s*$/;

    ($suite, $func, $desc) = split(/:/, $_);

    $tmp = { "suite" => $suite,
	     "func"  => $func,
	     "desc"  => $desc };

    push(@item, $tmp);
}
$count = scalar(@item);
$last = pop(@item);

#------------------------------------------------------------------------
# Output the table of names
print "/* Table mapping test suite names to index numbers */\n";
printf("const int   %s = %d;\n", $COUNTVAR, $count);
printf("const char *%s[] = {\n", $NAMEVAR);

foreach $elt (@item) {
    printf("   \"%s\",%s/* %s%s */\n", $elt->{"suite"},
	   " " x ($NAMELEN - length($elt->{"suite"})),
	   $elt->{"desc"},
	   " " x ($DESCLEN - length($elt->{"desc"})));
}
printf("   \"%s\" %s/* %s%s */\n", $last->{"suite"},
       " " x ($NAMELEN - length($last->{"suite"})),
       $last->{"desc"},
       " " x ($DESCLEN - length($last->{"desc"})));
print "};\n\n";

#------------------------------------------------------------------------
# Output the driver function prototypes
print "/* Test function prototypes */\n";
foreach $elt (@item, $last) {
    printf("int  %s(void);\n", $elt->{"func"});
}
print "\n";

#------------------------------------------------------------------------
# Output the table of functions
print "/* Table mapping index numbers to functions */\n";
printf("int (*%s[])(void)  = {\n   ", $FUNCVAR);
$brk = 0;

foreach $elt (@item) {
    print($elt->{"func"}, ", ", 
	  " " x ($FUNCLEN - length($elt->{"func"})));
    $brk = ($brk + 1) & 3;
    print "\n   " unless($brk);
}
print $last->{"func"}, "\n};\n\n";

#------------------------------------------------------------------------
# Output the table of descriptions
print "/* Table mapping index numbers to descriptions */\n";
printf("const char *%s[] = {\n", $DESCVAR);

foreach $elt (@item) {
    printf("   \"%s\",\n", $elt->{"desc"});
}
printf("   \"%s\"\n};\n\n", $last->{"desc"});

exit 0;