1 files changed, 21 insertions, 0 deletions
diff --git a/etc/isort b/etc/isort
new file mode 100755
index 0000000..eecde11
--- /dev/null
+++ b/etc/isort
@@ -0,0 +1,21 @@
+#!/usr/bin/perl -p
+
+# isort -- sort C variable declarations separated by commas
+
+# Extract words, save prefix.
+s/([^,]*?)(\S+[,;])/$2/;
+$prefix = $1;
+
+# Ensure all words end with comma.
+$semicolon = s/;$/,/;
+
+# Sort words.
+@words = sort {
+	($x = $a) =~ s/^\*+//;
+	($y = $b) =~ s/^\*+//;
+	$x cmp $y
+} split /\s+/;
+
+# Join words, add prefix and semicolon.
+$_ = $prefix . (join ' ', @words) . "\n";
+s/,$/;/ if $semicolon;