X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=src%2Fssic.pl;h=ba8b184355519a7b115f0d2db13c70f28dbe2800;hb=90d425f646cc30e880627e7168c834a7640ef65d;hp=d678556be7716789249ad70d4c540e31f266ad71;hpb=da9d788a9059ee88240cbbcc5096abc553b1cf1f;p=ssic.git

diff --git a/src/ssic.pl b/src/ssic.pl
old mode 100644
new mode 100755
index d678556..ba8b184
--- a/src/ssic.pl
+++ b/src/ssic.pl
@@ -1,4 +1,19 @@
 #!/usr/bin/perl
+#
+# Copyright (C) 2013  Patrick "P. J." McDermott
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 use strict;
 use warnings;
@@ -28,11 +43,11 @@ sub main
 	}
 
 	if (exists($opts{'h'})) {
-		help(*STDERR);
+		help(*STDOUT);
 		exit(0);
 	}
 	if (exists($opts{'V'})) {
-		version(*STDERR);
+		version(*STDOUT);
 		exit(0);
 	}
 
@@ -90,14 +105,14 @@ sub warning
 {
 	my ($fmt, @args) = @_;
 
-	printf("ssic: Warning: " . $fmt, @args);
+	printf(STDERR "ssic: Warning: " . $fmt, @args);
 }
 
 sub error
 {
 	my ($status, $fmt, @args) = @_;
 
-	printf("ssic: Error: " . $fmt, @args);
+	printf(STDERR "ssic: Error: " . $fmt, @args);
 	exit($status);
 }
 
@@ -111,8 +126,8 @@ sub compile
 	my $var_name;
 	my $var_value;
 
-	if ($input eq $output) {
-		error(4, "Input and output files are equal\n");
+	if ($input eq $output and $input ne "-") {
+		warning("Input and output files are equal\n");
 	}
 
 	if ($input eq "-") {
@@ -127,8 +142,8 @@ sub compile
 	if ($output eq "-") {
 		$output_fh = *STDOUT;
 	} else {
-		if (not open($output_fh, ">", $output)) {
-			error(4, "%s: %s\n", $output, $!);
+		if (not open($output_fh, ">", $output . "~")) {
+			error(4, "%s: %s\n", $output . "~", $!);
 		}
 	}
 
@@ -152,6 +167,17 @@ sub compile
 	}
 
 	print($output_fh $ssi->process(<$input_fh>));
+
+	if ($input ne "-") {
+		close($input_fh);
+	}
+	if ($output ne "-") {
+		close($output_fh);
+	}
+
+	if (not rename($output . "~", $output)) {
+		error(4, "%s: %s\n", $output, $!);
+	}
 }
 
 main();