GSUB

The lastest GSUB table can browse and download at SVN trunk:
    -OpenType Tables
      +'GDEF' Glyph Definition Table
      +'GPOS' Glyph Positioning Table
      -'GSUB' Glyph Substitution Table
        -'mymr' Myanmar writing system|Script
          -'dflt' Default Language
            -'calt' Contextual Alternates
              Chaining Substitution by classes
              Backtrack class 1: uni1001 uni1002 uni1004 uni1012 uni1015
              Backtrack class 2: uni1009 uni100A uni100B uni100C uni100D uni1020 uni1023 uni1025 uni1026 uni1029
              Backtrack class 3: uni102D uni102E uni1036
              Backtrack class 4: uni1031
              Backtrack class 5: sub_con_da
              Backtrack class 6: sub_con_ka sub_con_kha sub_con_ga sub_con_gha sub_con_nga sub_con_ca sub_con_cha sub_con_ja sub_con_tta sub_con_dda sub_con_nna sub_con_ta sub_con_tha sub_con_dha sub_con_na sub_con_pa sub_con_pha sub_con_ba sub_con_bha sub_con_ma sub_con_la sub_con_sa sub_con_a med_ya med_ra med_wa wa_ha ta_wa_small
              Backtrack class 7: uni1000 uni1003 uni1006 uni100F uni1010 uni1011 uni1018 uni101A uni101C uni101E uni101F uni1021
              Class 1: uni102C
              Class 2: uni102F uni1030
              Class 3: uni1014 uni101B
              Class 4: uni1000 uni1001 uni1002 uni1003 uni1004 uni1005 uni1006 uni1007 uni1008 uni1009 uni100A uni100B uni100D uni100E uni100F uni1010 uni1011 uni1012 uni1013 uni1015 uni1016 uni1017 uni1018 uni1019 uni101A uni101C uni101D uni101E uni101F uni1020 uni1021 uni1025
              Class 5: uni1031
              Class 6: med_ra
              Lookahead class 1: uni102F uni1030
              Lookahead class 2: sub_con_ka sub_con_kha sub_con_ga sub_con_gha sub_con_nga sub_con_ca sub_con_cha sub_con_ja sub_con_tta sub_con_dda sub_con_nna sub_con_ta sub_con_tha sub_con_da sub_con_dha sub_con_na sub_con_pa sub_con_pha sub_con_ba sub_con_bha sub_con_ma sub_con_la sub_con_sa sub_con_a med_ya med_ra med_wa med_ha med_ha_102f wa_ha ta_wa_small
              Lookahead class 3: uni1031
              Lookahead class 4: uni102D uni102E uni1036
              Lookahead class 5: kinzi
              -Rule 0
                Backtrack class: 1
                Class1
                -Apply at 0 'tall'
                  uni102C => aa_tall_1
              -Rule 1
                Backtrack class: 5
                Class1
                -Apply at 0 'tall'
                  uni102C => aa_tall_1
              -Rule 2
                Backtrack class: 2
                Class2
                -Apply at 0 '2f30'
                  uni102F => tall_102f
                  uni1030 => tall_1030
              -Rule 3
                Backtrack classes: 2 3
                Class2
                -Apply at 0 '2f30'
                  uni102F => tall_102f
                  uni1030 => tall_1030
              -Rule 4
                Backtrack class: 5
                Class2
                -Apply at 0 '2f30'
                  uni102F => tall_102f
                  uni1030 => tall_1030
              -Rule 5
                Backtrack class: 6
                Class2
                -Apply at 0 '2f30'
                  uni102F => tall_102f
                  uni1030 => tall_1030
              -Rule 6
                Class3
                Lookahead class: 1
                -Apply at 0 'tail'
                  uni1014 => notail_na
                  uni101B => ra_shape
              -Rule 7
                Class3
                Lookahead class: 2
                -Apply at 0 'tail'
                  uni1014 => notail_na
                  uni101B => ra_shape
              -Rule 8
                Class3
                Lookahead class: 4
                -Apply at 0 'tail'
                  uni1014 => notail_na
                  uni101B => ra_shape
              -Rule 9
                Backtrack class: 7
                Class6
                -Apply at 0 'MRA3'
                  med_ra => med_ra_big
                  bot_medra_small => bot_medra_big
                  top_medra_small => top_medra_big
              -Rule 10
                Class6
                Lookahead class: 2
                  -Apply at 0 'MRA1'
                  med_ra => bot_medra_small
              -Rule 11
                Class6
                Lookahead class: 4
                -Apply at 0 'MRA2'
                  med_ra => top_medra_small
            -'calt' Contextual Alternates
              Chaining Substitution by coverage
              -Rule 0
                Coverage 0: uni1000 uni1001 uni1002 uni1003 uni1004 uni1005 uni1006 uni1007 uni1008 uni1009 uni100A uni100B uni100C uni100D uni100E uni100F uni1010 uni1011 uni1012 uni1013 uni1014 uni1015 uni1016 uni1017 uni1018 uni1019 uni101A uni101B uni101C uni101D uni101E uni101F uni1020 uni1021
                Lookahead coverage 1: uni1031
                -Apply at 0 'U31A'
                uni1000 => uni1031 uni1000
                uni1014 => uni1031 uni1014
                uni101B => uni1031 uni101B
                uni101E => uni1031 uni101E
            -'calt' Contextual Alternates
              Chaining Substitution by coverage
              -Rule 0
                Back coverage -1: uni1031
                Coverage 0: uni1000 uni1001 uni1002 uni1003 uni1004 uni1005 uni1006 uni1007 uni1008 uni1009 uni100A uni100B uni100C uni100D uni100E uni100F uni1010 uni1011 uni1012 uni1013 uni1014 uni1015 uni1016 uni1017 uni1018 uni1019 uni101A uni101B uni101C uni101D uni101E uni101F uni1020 uni1021
                Coverage 1: uni1031
                -Apply at 0 'U31B'
                uni1000 <= uni1000 uni1031
                uni1014 <= uni1014 uni1031
                uni101B <= uni101B uni1031
                uni101E <= uni101E uni1031
            -'ccmp' Glyph Composition/Decomposition
              com_med_ya_ha <= med_ya med_ha
              stack_nna_dda <= uni100F sub_con_dda
              rare_ddha_dda <= uni100E sub_con_dda
              wa_ha <= med_wa med_ha
              multi_1 <= med_ya med_wa
              multi_2 <= med_ya med_wa med_ha
              multi_3 <= med_ya sub_con_ca
              multi_4 <= uni100B sub_con_tta
              multi_5 <= uni100D sub_con_dda
            -'liga' Standard Ligatures
              sub_con_ka <= uni1039 uni1000
              sub_con_kha <= uni1039 uni1001
              sub_con_ga <= uni1039 uni1002
              sub_con_gha <= uni1039 uni1003
              sub_con_nga <= uni1039 uni1004
              sub_con_ca <= uni1039 uni1005
              sub_con_cha <= uni1039 uni1006
              sub_con_ja <= uni1039 uni1007
              sub_con_tta <= uni1039 uni100B
              sub_con_dda <= uni1039 uni100D
              sub_con_nna <= uni1039 uni100F
              sub_con_ta <= uni1039 uni1010
              sub_con_tha <= uni1039 uni1011
              sub_con_da <= uni1039 uni1012
              sub_con_dha <= uni1039 uni1013
              sub_con_na <= uni1039 uni1014
              sub_con_pa <= uni1039 uni1015
              sub_con_pha <= uni1039 uni1016
              sub_con_ba <= uni1039 uni1017
              sub_con_bha <= uni1039 uni1018
              sub_con_ma <= uni1039 uni1019
              sub_con_la <= uni1039 uni101C
              sub_con_sa <= uni1039 uni101E
              sub_con_a <= uni1039 uni1021
              med_ya <= uni1039 uni101A
              med_ra <= uni1039 uni101B
              med_wa <= uni1039 uni101D
              med_ha <= uni1039 uni101F
            -'rlig' Required Ligatures
              aa_tall_2 <= aa_tall_1 uni1039
              med_ha_102f <= med_ha uni102F
    +Apple Advanced Typography