@figures=[zero one two three four five six seven eight nine];
@figures_mono=[zero.mono one.mono two.mono three.mono four.mono five.mono six.mono seven.mono eight.mono nine.mono];
@figures_mono_inverse=[zero.mono.inverse one.mono.inverse two.mono.inverse three.mono.inverse four.mono.inverse five.mono.inverse six.mono.inverse seven.mono.inverse eight.mono.inverse nine.mono.inverse];
@figures_multiple=[zero.multiple one.multiple two.multiple three.multiple four.multiple five.multiple six.multiple seven.multiple eight.multiple nine.multiple];
@figures_multiple_inverse=[zero.multiple.inverse one.multiple.inverse two.multiple.inverse three.multiple.inverse four.multiple.inverse five.multiple.inverse six.multiple.inverse seven.multiple.inverse eight.multiple.inverse nine.multiple.inverse];


#languagesystem DFLT dflt;
languagesystem latn dflt;


#	Test ss01 and ss02 with:
# [1] [12] [123] [1234] [1 1] [12 12] [123 123]


feature ss01 {

# http://www.adobe.com/devnet/opentype/afdko/topic_feature_file_syntax.html#8.c
# (featureNames block is AFDKO 2.5 syntax.)
#featureNames {
#	name "index";
#	name 1 "index";
#} ;

lookup Index1 {
# [f.mono]
	sub bracketleft @figures' bracketright by @figures_mono;
# [f f f.multiple]
	sub bracketleft @figures @figures @figures' bracketright by @figures_multiple;
# [f f.multiple]
	sub bracketleft @figures @figures' bracketright by @figures_multiple;
} Index1;

lookup Index2 {
# [f.multiple f.multiple] AND
# [f f.multiple f.multiple]
	sub @figures' @figures_multiple by @figures_multiple;
} Index2;

lookup Index3 {
# Same rule as in lookup Index2.
# (Why can't a lookup be called more than one time in a feature?)
# Rule is in a lookup only, because it is called by ss02.
# [f.multiple f.multiple f.multiple]
	sub @figures' @figures_multiple by @figures_multiple;
} Index3;

lookup Index4 {
	sub bracketleft' [@figures_mono @figures_multiple] by bracketleft.square;
	sub [@figures_mono @figures_multiple] bracketright' by bracketright.square;
} Index4;

} ss01;




feature ss02 {

# http://www.adobe.com/devnet/opentype/afdko/topic_feature_file_syntax.html#8.c
# (featureNames block is AFDKO 2.5 syntax.)
#featureNames {
#	name "index inverse";
#	name 1 "index inverse";
#} ;

lookup Index1;
lookup Index2;
lookup Index3;
lookup Index4;
sub [@figures_mono @figures_multiple bracketleft.square bracketright.square] by [@figures_mono_inverse @figures_multiple_inverse bracketleft.square.inverse bracketright.square.inverse];

} ss02;