moves feature code out of the glyphs file

25 files changed, 2006 insertions, 0 deletions

diff --git a/src/features/README.md b/src/features/README.md
new file mode 100644
index 000000000..75c85a84f
--- /dev/null
+++ b/src/features/README.md
@@ -0,0 +1,21 @@
+# OpenType features
+
+This directory contains most (but not all) OpenType feature code.
+
+- Some features are maintained by the Glyphs application and are stored in the .glyphs file.
+- The order of features are defined in the .glyphs file
+
+Each feature file in this directory is automatically wrapped in a `feature {...}` block.
+For example, `cv07.fea` contains the following code:
+
+```fea
+sub germandbls by germandbls.1;
+```
+
+And when the font is compiled, it actually becomes:
+
+```
+feature cv07 {
+  sub germandbls by germandbls.1;
+}
+```
diff --git a/src/features/calt.fea b/src/features/calt.fea
new file mode 100644
index 000000000..8b1ad6dc4
--- /dev/null
+++ b/src/features/calt.fea
@@ -0,0 +1,237 @@
+# cap-height tall glyphs
+@UC = [
+  @Uppercase
+  @Numeral
+
+  # punctuation
+  ampersand exclam exclamdbl exclamdown uni2049 question uni2047 uni2048
+  questiondown interrobang invertedinterrobang bar paragraph
+
+  # currency
+  dollar cent yen sterling florin uni20BA uni20BD euro uni20B9 tenge peseta
+  peso kip won lira austral hryvnia naira guarani coloncurrency cedi cruzeiro
+  tugrik uni20AF mill afii57636 manat rupee lari franc
+
+  # cap-tall symbols
+  numero triagrt triagdn triagup warningSign blackleftpointingtriangle
+  circleblack circlewhite
+  diamondblack diamondblack_x diamondwhite diamondwhite_x
+  sunWithRays blackSunWithRays
+  heartWhiteSuit heartBlackSuit heavyBlackHeart
+  upBlackArrow upWhiteArrow
+  capslock placeofinterestsign control projective option alternativekeysymbol
+  brokenCircleNorthWestArrow anticlockwiseOpenCircleArrow
+  clockwiseOpenCircleArrow
+  deleteleft deleteright clear ejectsymbol
+
+  # percent and fractions
+  onehalf onethird onequarter threequarters fivesixths onefraction seveneighths
+  oneeighth fiveeighths threeeighths percent perthousand pertenthousand uni214D
+  cadauna careof accountof addresssubject
+];
+
+# x-height tall glyphs
+@LC = [
+  @Lowercase
+];
+
+@CASE_DELIM_L = [
+  braceleft   braceright
+  bracketleft bracketright
+  parenleft   parenright
+];
+@CASE_NONDELIM_L = [
+  at
+  multiply
+  minus
+  plus
+  plusminus
+  divide
+  equal
+  notequal
+  endash
+  figuredash
+  emdash
+  hyphen
+  bullet
+  openbullet
+  hyphenbullet
+  trianglebullet
+  blackleftbullet
+  blackrightbullet
+  leftArrow
+  leftLongArrow
+  leftLongArrow2
+  rightArrow
+  rightLongArrow
+  rightLongArrow2
+  leftRightArrow
+  leftRightLongArrow
+  colon
+  approxequal
+  asciitilde
+  less
+  greater
+  lessequal
+  greaterequal
+];
+@CASE_L = [
+  @CASE_DELIM_L
+  @CASE_NONDELIM_L
+];
+
+@CASE_DELIM_R = [
+  braceleft.case   braceright.case
+  bracketleft.case bracketright.case
+  parenleft.case   parenright.case
+];
+@CASE_NONDELIM_R = [
+  at.case
+  multiply.case
+  minus.case
+  plus.case
+  plusminus.case
+  divide.case
+  equal.case
+  notequal.case
+  endash.case
+  figuredash.case
+  emdash.case
+  hyphen.case
+  bullet.case
+  openbullet.case
+  hyphenbullet.case
+  trianglebullet.case
+  blackleftbullet.case
+  blackrightbullet.case
+  leftArrow.case
+  leftLongArrow.case
+  leftLongArrow2.case
+  rightArrow.case
+  rightLongArrow.case
+  rightLongArrow2.case
+  leftRightArrow.case
+  leftRightLongArrow.case
+  colon.case
+  approxequal.case
+  asciitilde.case
+  less.case
+  greater.case
+  lessequal.case
+  greaterequal.case
+];
+@CASE_R = [
+  @CASE_DELIM_R
+  @CASE_NONDELIM_R
+];
+
+@DASH = [
+  hyphen hyphen.case
+  endash endash.case
+  emdash emdash.case
+  minus minus.case
+];
+
+# ---------------------------------------------------
+
+# :-)
+sub colon' @DASH [parenright parenright.case] by colon.case;
+sub [colon colon.case] hyphen' [parenright parenright.case] by hyphen.case;
+sub [colon colon.case] endash' [parenright parenright.case] by endash.case;
+sub [colon colon.case] emdash' [parenright parenright.case] by emdash.case;
+sub [colon colon.case] @DASH parenright' by parenright.case;
+
+# A foo' -> A foo.case
+#
+# ignore subs adjacent to lower case
+#
+# x[]X
+ignore sub @LC @CASE_DELIM_L @CASE_DELIM_L @UC;
+ignore sub @LC @CASE_DELIM_L @UC;
+ignore sub @LC @CASE_DELIM_L @Whitespace @UC;
+ignore sub @LC @CASE_DELIM_L @Whitespace @Whitespace @UC;
+#
+# short runs of uc-lc, e.g "(Xx)", "[Zzz]"
+ignore sub @CASE_DELIM_L @UC @LC @CASE_DELIM_L;
+ignore sub @CASE_DELIM_L @UC @All @LC @CASE_DELIM_L;
+#
+# e.g. "x-"
+# TODO: figure out how to ignore "x--A"
+ignore sub @LC @CASE_L;
+#
+# e.g. "-x", "--x", "---x", "----x", "-----x"
+ignore sub @CASE_L @LC;
+ignore sub @CASE_L @CASE_L @LC;
+ignore sub @CASE_L @CASE_L @CASE_L @LC;
+ignore sub @CASE_L @CASE_L @CASE_L @CASE_L @LC;
+ignore sub @CASE_L @CASE_L @CASE_L @CASE_L @CASE_L @LC;
+#
+# pairs with space, e.g. "( ) M" since we don't support subbing
+# all on the left side.
+ignore sub @CASE_DELIM_L @Whitespace @CASE_DELIM_L @Whitespace [ @UC @CASE_R ];
+ignore sub @CASE_DELIM_L @CASE_DELIM_L @Whitespace [ @UC @CASE_R ];
+#
+# e.g. "A-", "A -", "A  -"
+sub [ @UC @CASE_R ] @CASE_L' by @CASE_R;
+sub [ @UC @CASE_R ] @Whitespace @CASE_L' by @CASE_R;
+sub [ @UC @CASE_R ] @Whitespace @Whitespace @CASE_L' by @CASE_R;
+
+# foo' foo foo foo foo A -> foo.case foo foo foo foo A
+# foo' foo foo foo A -> foo.case foo foo foo A
+# foo' foo foo A -> foo.case foo foo A
+# foo' foo A -> foo.case foo A
+# foo' A -> foo.case A
+# Note: since we look quite far back, sequences like x{}[]M will case both
+# the square brackets next to M _and_ the curly braces to become .case
+#
+# e.g. "-A", "--A", "---A", "----A", "-----A"
+sub @CASE_L' [ @UC @CASE_R ] by @CASE_R;
+sub @CASE_L' @CASE_L [ @CASE_R @UC ] by @CASE_R;
+sub @CASE_L' @CASE_L @CASE_L [ @CASE_R @UC ] by @CASE_R;
+sub @CASE_L' @CASE_L @CASE_L @CASE_L [ @CASE_R @UC ] by @CASE_R;
+sub @CASE_L' @CASE_L @CASE_L @CASE_L @CASE_L [ @CASE_R @UC ] by @CASE_R;
+#
+# e.g. "- A", "-- A", "--- A", "---- A", "----- A"
+sub @CASE_L' @Whitespace [ @UC @CASE_R ] by @CASE_R;
+sub @CASE_L' @CASE_L @Whitespace [ @CASE_R @UC ] by @CASE_R;
+sub @CASE_L' @CASE_L @CASE_L @Whitespace [ @CASE_R @UC ] by @CASE_R;
+sub @CASE_L' @CASE_L @CASE_L @CASE_L @Whitespace [ @CASE_R @UC ] by @CASE_R;
+sub @CASE_L' @CASE_L @CASE_L @CASE_L @CASE_L @Whitespace [ @CASE_R @UC ] by @CASE_R;
+#
+# e.g. "-  A", "--  A", "---  A", "----  A", "-----  A"
+sub @CASE_L' @Whitespace @Whitespace [ @UC @CASE_R ] by @CASE_R;
+sub @CASE_L' @CASE_L @Whitespace @Whitespace [ @CASE_R @UC ] by @CASE_R;
+sub @CASE_L' @CASE_L @CASE_L @Whitespace @Whitespace [ @CASE_R @UC ] by @CASE_R;
+sub @CASE_L' @CASE_L @CASE_L @CASE_L @Whitespace @Whitespace [ @CASE_R @UC ] by @CASE_R;
+sub @CASE_L' @CASE_L @CASE_L @CASE_L @CASE_L @Whitespace @Whitespace [ @CASE_R @UC ] by @CASE_R;
+sub @CASE_L' @Whitespace @Whitespace @Whitespace [ @UC @CASE_R ] by @CASE_R; # e.g. "-  A"
+
+# X(_)
+@Punctuation = [
+  slash bar quoteleft quoteright apostrophemod quotesingle quotedbl
+  quotedblleft quotedblright quotedblbase quotesinglbase prime doubleprime
+  tripleprime quadrupleprime primerev doubleprimerev tripleprimerev primemod
+  doubleprimemod comma period ellipsis twodotleader semicolon underscore
+  asciicircum circumflex
+  asterisk
+];
+sub @CASE_DELIM_R @Punctuation @CASE_DELIM_L' by @CASE_DELIM_R;
+
+# in between number position adjustment, e.g. 3x4 -> 3×4
+@between_num_L = [
+  multiply
+  asterisk
+];
+@between_num_R = [
+  multiply.case
+  asterisk.case
+];
+sub @Numeral @between_num_L' @Numeral                                                 by @between_num_R; # 3*9
+sub @Numeral @Whitespace @between_num_L' @Numeral                                     by @between_num_R; # 3 *9
+sub @Numeral @Whitespace @Whitespace @between_num_L' @Numeral                         by @between_num_R; # 3  *9
+sub @Numeral @between_num_L' @Whitespace @Numeral                                     by @between_num_R; # 3* 9
+sub @Numeral @Whitespace @between_num_L' @Whitespace @Numeral                         by @between_num_R; # 3 * 9
+sub @Numeral @Whitespace @Whitespace @between_num_L' @Whitespace @Numeral             by @between_num_R; # 3  * 9
+sub @Numeral @between_num_L' @Whitespace @Whitespace @Numeral                         by @between_num_R; # 3*  9
+sub @Numeral @Whitespace @between_num_L' @Whitespace @Whitespace @Numeral             by @between_num_R; # 3 *  9
+sub @Numeral @Whitespace @Whitespace @between_num_L' @Whitespace @Whitespace @Numeral by @between_num_R; # 3  *  9
diff --git a/src/features/ccmp.fea b/src/features/ccmp.fea
new file mode 100644
index 000000000..20dbb8d41
--- /dev/null
+++ b/src/features/ccmp.fea
@@ -0,0 +1,556 @@
+@CCMP_ACC = [
+  gravecomb acutecomb tildecomb brevetildecomb.cn brevehookcomb.cn
+  breveacutecomb.cn circumflextildecomb.cn circumflexhookcomb.cn
+  circumflexgravecomb.cn circumflexacutecomb.cn brevegravecomb.cn
+  macroncomb dieresismacroncomb.cn dieresisacutecomb.cn
+  dieresiscaroncomb.cn dieresisgravecomb.cn dotmacroncomb.cn
+  tildeacutecomb macrongravecomb.cn macronacutecomb.cn
+  macrondieresiscomb.cn acutedotcomb.cn carondotcomb.cn
+  tildemacroncomb.cn tildedieresiscomb.cn circumflexnosp overscorenosp
+  brevenosp dotnosp dieresisnosp hook ringnosp acutedblnosp caroncmb
+  linevertnosp linevertdblnosp dblgravecmb candrabindunosp breveinvnosp
+  commaturnsupnosp commaabovecmb commasuprevnosp commaaboverightcmb
+  anglesupnosp hornnosp xsupnosp tildevertsupnosp overscoredblnosp
+  graveleftnosp acuterightnosp perispomenigreekcmb koroniscmb
+  diaeresistonosnosp uni0346 uni034A uni034B uni034C arrowheadrightabovecomb uni0351
+  uni0352 uni0357 uni0358 uni035B uni1DC0 uni1DC1 uni1DC3 uni1DC4
+  uni1DC5 uni1DC6 uni1DC7 uni1DC8 uni1DC9 uni1DCB uni1DCC uni1DCD
+  uni1DCE uni1DD1 uni1DD2 uni1DD3 uni1DD4 uni1DD5 uni1DD6 uni1DD7
+  uni1DD8 uni1DD9 uni1DDA uni1DDB uni1DDC uni1DDD uni1DDE uni1DDF
+  uni1DE0 uni1DE1 uni1DE2 uni1DE3 uni1DE4 uni1DE5 uni1DE6 uni1DE7
+  uni1DE8 uni1DE9 uni1DEA uni1DEB uni1DEC uni1DED uni1DEE uni1DEF
+  uni1DF0 uni1DF1 uni1DF2 uni1DF3 uni1DF4 uni1DF5 uni1DFE uni0363
+  uni0364 uni0365 uni0366 uni0367 uni0368 uni0369 uni036A uni036B
+  uni036C uni036D uni036E uni036F titlocyrilliccmb
+  palatalizationcyrilliccmb dasiapneumatacyrilliccmb
+  psilipneumatacyrilliccmb uni0487 uni20F0 uniA69F uni2DFF uni20DC
+  uniFE20 uniFE21 uniFE22 uniFE23 uniFE24 uniFE25 uniFE26
+];
+
+# Transpose sequences like /i /gravecomb -> /idotless /gravecomb
+lookup ccmp02 {
+  sub i' @CCMP_ACC by idotless;
+  sub j' @CCMP_ACC by jdotless;
+  sub ibar' @CCMP_ACC by uni0268.ccmp;
+  sub iogonek' @CCMP_ACC by uni012F.ccmp; # iogonek is generated
+  sub uni0249' @CCMP_ACC by uni0249.ccmp;
+  sub jcrosstail' @CCMP_ACC by jcrosstail.ccmp;
+  sub yotgreek' @CCMP_ACC by jdotless;
+  sub icyrillic' @CCMP_ACC by idotless;
+  sub jecyrillic' @CCMP_ACC by jdotless;
+  sub itildebelow' @CCMP_ACC by uni1E2D.ccmp; # uni1E2D.ccmp is generated
+  sub idotbelow' @CCMP_ACC by uni1ECB.ccmp; # both are generated
+  sub i.numr' @CCMP_ACC by uni2071.ccmp;
+} ccmp02;
+
+lookup ccmp03 {
+  sub d caroncmb by dcaron;
+  sub l caroncmb by lcaron;
+  sub t caroncmb by tcaron;
+
+  sub A gravecomb by Agrave;
+  sub A acutecomb by Aacute;
+  sub A circumflexnosp by Acircumflex;
+  sub A tildecomb by Atilde;
+  sub A dieresisnosp by Adieresis;
+  sub A ringnosp by Aring;
+  sub A ringacute.cn by Aringacute;
+  sub C cedillanosp by Ccedilla;
+  sub E gravecomb by Egrave;
+  sub E acutecomb by Eacute;
+  sub E circumflexnosp by Ecircumflex;
+  sub E dieresisnosp by Edieresis;
+  sub I gravecomb by Igrave;
+  sub I acutecomb by Iacute;
+  sub I circumflexnosp by Icircumflex;
+  sub I dieresisnosp by Idieresis;
+  sub N tildecomb by Ntilde;
+  sub O gravecomb by Ograve;
+  sub O acutecomb by Oacute;
+  sub O circumflexnosp by Ocircumflex;
+  sub O tildecomb by Otilde;
+  sub O dieresisnosp by Odieresis;
+  sub U gravecomb by Ugrave;
+  sub U acutecomb by Uacute;
+  sub U circumflexnosp by Ucircumflex;
+  sub U dieresisnosp by Udieresis;
+  sub Y acutecomb by Yacute;
+  sub a gravecomb by agrave;
+  sub a acutecomb by aacute;
+  sub a circumflexnosp by acircumflex;
+  sub a tildecomb by atilde;
+  sub a dieresisnosp by adieresis;
+  sub a ringnosp by aring;
+  sub a ringacute.cn by aringacute;
+  sub c cedillanosp by ccedilla;
+  sub e gravecomb by egrave;
+  sub e acutecomb by eacute;
+  sub e circumflexnosp by ecircumflex;
+  sub e dieresisnosp by edieresis;
+  sub idotless gravecomb by igrave;
+  sub idotless acutecomb by iacute;
+  sub idotless circumflexnosp by icircumflex;
+  sub idotless dieresisnosp by idieresis;
+  sub n tildecomb by ntilde;
+  sub o gravecomb by ograve;
+  sub o acutecomb by oacute;
+  sub o circumflexnosp by ocircumflex;
+  sub o tildecomb by otilde;
+  sub o dieresisnosp by odieresis;
+  sub u gravecomb by ugrave;
+  sub u acutecomb by uacute;
+  sub u circumflexnosp by ucircumflex;
+  sub u dieresisnosp by udieresis;
+  sub y acutecomb by yacute;
+  sub y dieresisnosp by ydieresis;
+  sub A macroncomb by Amacron;
+  sub a macroncomb by amacron;
+  sub A brevenosp by Abreve;
+  sub a brevenosp by abreve;
+  sub A ogoneknosp by Aogonek;
+  sub a ogoneknosp by aogonek;
+  sub C acutecomb by Cacute;
+  sub c acutecomb by cacute;
+  sub C circumflexnosp by Ccircumflex;
+  sub c circumflexnosp by ccircumflex;
+  sub C dotnosp by Cdotaccent;
+  sub c dotnosp by cdotaccent;
+  sub C caroncmb by Ccaron;
+  sub c caroncmb by ccaron;
+  sub D caroncmb by Dcaron;
+  sub E macroncomb by Emacron;
+  sub e macroncomb by emacron;
+  sub E brevenosp by Ebreve;
+  sub e brevenosp by ebreve;
+  sub E dotnosp by Edotaccent;
+  sub e dotnosp by edotaccent;
+  sub E ogoneknosp by Eogonek;
+  sub e ogoneknosp by eogonek;
+  sub E caroncmb by Ecaron;
+  sub e caroncmb by ecaron;
+  sub G circumflexnosp by Gcircumflex;
+  sub g circumflexnosp by gcircumflex;
+  sub G brevenosp by Gbreve;
+  sub g brevenosp by gbreve;
+  sub G dotnosp by Gdotaccent;
+  sub g dotnosp by gdotaccent;
+  sub G commaaccent by Gcommaaccent;
+  sub g commaaccentrotate.cn by gcommaaccent;
+  sub H circumflexnosp by Hcircumflex;
+  sub h circumflexnosp by hcircumflex;
+  sub I tildecomb by Itilde;
+  sub idotless tildecomb by itilde;
+  sub I macroncomb by Imacron;
+  sub idotless macroncomb by imacron;
+  sub I brevenosp by Ibreve;
+  sub idotless brevenosp by ibreve;
+  sub I ogoneknosp by Iogonek;
+  sub i ogoneknosp by iogonek;
+  sub I dotnosp by Idotaccent;
+  sub J circumflexnosp by Jcircumflex;
+  sub jdotless circumflexnosp by jcircumflex;
+  sub K commaaccent by Kcommaaccent;
+  sub k commaaccent by kcommaaccent;
+  sub L acutecomb by Lacute;
+  sub l acutecomb by lacute;
+  sub L commaaccent by Lcommaaccent;
+  sub l commaaccent by lcommaaccent;
+  sub L dotnosp by Ldot;
+  sub l dotnosp by ldot;
+  sub N acutecomb by Nacute;
+  sub n acutecomb by nacute;
+  sub N commaaccent by Ncommaaccent;
+  sub n commaaccent by ncommaaccent;
+  sub N caroncmb by Ncaron;
+  sub n caroncmb by ncaron;
+  sub O macroncomb by Omacron;
+  sub o macroncomb by omacron;
+  sub O brevenosp by Obreve;
+  sub o brevenosp by obreve;
+  sub O acutedblnosp by Ohungarumlaut;
+  sub o acutedblnosp by ohungarumlaut;
+  sub R acutecomb by Racute;
+  sub r acutecomb by racute;
+  sub R commaaccent by Rcommaaccent;
+  sub r commaaccent by rcommaaccent;
+  sub R caroncmb by Rcaron;
+  sub r caroncmb by rcaron;
+  sub S acutecomb by Sacute;
+  sub s acutecomb by sacute;
+  sub S circumflexnosp by Scircumflex;
+  sub s circumflexnosp by scircumflex;
+  sub S cedillanosp by Scedilla;
+  sub s cedillanosp by scedilla;
+  sub S commaaccent by Scommaaccent;
+  sub s commaaccent by scommaaccent;
+  sub S caroncmb by Scaron;
+  sub s caroncmb by scaron;
+  sub T commaaccent by uni021A;
+  sub t commaaccent by tcommaaccent;
+  sub T cedillanosp by Tcommaaccent;
+  sub t cedillanosp by tcedilla;
+  sub T caroncmb by Tcaron;
+  sub U tildecomb by Utilde;
+  sub u tildecomb by utilde;
+  sub U macroncomb by Umacron;
+  sub u macroncomb by umacron;
+  sub U brevenosp by Ubreve;
+  sub u brevenosp by ubreve;
+  sub U ringnosp by Uring;
+  sub u ringnosp by uring;
+  sub U acutedblnosp by Uhungarumlaut;
+  sub u acutedblnosp by uhungarumlaut;
+  sub U ogoneknosp by Uogonek;
+  sub u ogoneknosp by uogonek;
+  sub W circumflexnosp by Wcircumflex;
+  sub w circumflexnosp by wcircumflex;
+  sub Y circumflexnosp by Ycircumflex;
+  sub y circumflexnosp by ycircumflex;
+  sub Y dieresisnosp by Ydieresis;
+  sub Z acutecomb by Zacute;
+  sub z acutecomb by zacute;
+  sub Z dotnosp by Zdotaccent;
+  sub z dotnosp by zdotaccent;
+  sub Z caroncmb by Zcaron;
+  sub z caroncmb by zcaron;
+  sub AE acutecomb by AEacute;
+  sub ae acutecomb by aeacute;
+  sub Oslash acutecomb by Oslashacute;
+  sub oslash acutecomb by oslashacute;
+  #sub z caroncmb by zcaron;
+  sub W gravecomb by Wgrave;
+  sub w gravecomb by wgrave;
+  sub W acutecomb by Wacute;
+  sub w acutecomb by wacute;
+  sub W dieresisnosp by Wdieresis;
+  sub w dieresisnosp by wdieresis;
+  sub Y gravecomb by Ygrave;
+  sub y gravecomb by ygrave;
+  sub jdotless caroncmb by jcaron;
+  sub A dotbelow by Adotbelow;
+  sub a dotbelow by adotbelow;
+  sub A hook by Ahookabove;
+  sub a hook by ahookabove;
+  #sub A circumflexacutecomb.cn by uni1EA4;
+  sub A circumflexnosp acutecomb by Acircumflexacute;
+  sub a circumflexacutecomb.cn by acircumflexacute;
+  #sub A circumflexgravecomb.cn by uni1EA6;
+  sub A circumflexnosp gravecomb by Acircumflexgrave;
+  sub a circumflexgravecomb.cn by acircumflexgrave;
+  #sub A circumflexhookcomb.cn by uni1EA8;
+  sub A circumflexnosp hook by Acircumflexhookabove;
+  sub a circumflexhookcomb.cn by acircumflexhookabove;
+  #sub A circumflextildecomb.cn by uni1EAA;
+  sub A circumflexnosp tildecomb by Acircumflextilde;
+  sub a circumflextildecomb.cn by acircumflextilde;
+  #sub A breveacutecomb.cn by uni1EAE;
+  sub A brevenosp acutecomb by Abreveacute;
+  sub a breveacutecomb.cn by abreveacute;
+  #sub A brevegravecomb.cn by uni1EB0;
+  sub A brevenosp gravecomb by Abrevegrave;
+  sub a brevegravecomb.cn by abrevegrave;
+  #sub A brevehookcomb.cn by uni1EB2;
+  sub A brevenosp hook by Abrevehookabove;
+  sub a brevehookcomb.cn by abrevehookabove;
+  sub A brevetildecomb.cn by Abrevetilde;
+  sub a brevetildecomb.cn by abrevetilde;
+  sub E dotbelow by Edotbelow;
+  sub e dotbelow by edotbelow;
+  sub E hook by Ehookabove;
+  sub e hook by ehookabove;
+  sub E tildecomb by Etilde;
+  sub e tildecomb by etilde;
+  #sub E circumflexacutecomb.cn by uni1EBE;
+  sub E circumflexnosp acutecomb by Ecircumflexacute;
+  sub e circumflexacutecomb.cn by ecircumflexacute;
+  #sub E circumflexgravecomb.cn by uni1EC0;
+  sub E circumflexnosp gravecomb by Ecircumflexgrave;
+  sub e circumflexgravecomb.cn by ecircumflexgrave;
+  #sub E circumflexhookcomb.cn by uni1EC2;
+  sub E circumflexnosp hook by Ecircumflexhookabove;
+  sub e circumflexhookcomb.cn by ecircumflexhookabove;
+  #sub E circumflextildecomb.cn by uni1EC4;
+  sub E circumflexnosp tildecomb by Ecircumflextilde;
+  sub e circumflextildecomb.cn by ecircumflextilde;
+  sub I hook by Ihookabove;
+  sub idotless hook by ihookabove;
+  sub I dotbelow by Idotbelow;
+  sub i dotbelow by idotbelow;
+  sub O dotbelow by Odotbelow;
+  sub o dotbelow by odotbelow;
+  sub O hook by Ohookabove;
+  sub o hook by ohookabove;
+  #sub O circumflexacutecomb.cn by uni1ED0;
+  sub O circumflexnosp acutecomb by Ocircumflexacute;
+  sub o circumflexacutecomb.cn by ocircumflexacute;
+  #sub O circumflexgravecomb.cn by uni1ED2;
+  sub O circumflexnosp gravecomb by Ocircumflexgrave;
+  sub o circumflexgravecomb.cn by ocircumflexgrave;
+  #sub O circumflexhookcomb.cn by uni1ED4;
+  sub O circumflexnosp hook by Ocircumflexhookabove;
+  sub o circumflexhookcomb.cn by ocircumflexhookabove;
+  #sub O circumflextildecomb.cn by uni1ED6;
+  sub O circumflexnosp tildecomb by Ocircumflextilde;
+  sub o circumflextildecomb.cn by ocircumflextilde;
+  sub Ohorn acutecomb by Ohornacute;
+  sub ohorn acutecomb by ohornacute;
+  sub Ohorn gravecomb by Ohorngrave;
+  sub ohorn gravecomb by ohorngrave;
+  sub Ohorn hook by Ohornhookabove;
+  sub ohorn hook by ohornhookabove;
+  sub Ohorn tildecomb by Ohorntilde;
+  sub ohorn tildecomb by ohorntilde;
+  sub Ohorn dotbelow by Ohorndotbelow;
+  sub ohorn dotbelow by ohorndotbelow;
+  sub U dotbelow by Udotbelow;
+  sub u dotbelow by udotbelow;
+  sub U hook by Uhookabove;
+  sub u hook by uhookabove;
+  sub Uhorn acutecomb by Uhornacute;
+  sub uhorn acutecomb by uhornacute;
+  sub Uhorn gravecomb by Uhorngrave;
+  sub uhorn gravecomb by uhorngrave;
+  sub Uhorn hook by Uhornhookabove;
+  sub uhorn hook by uhornhookabove;
+  sub Uhorn tildecomb by Uhorntilde;
+  sub uhorn tildecomb by uhorntilde;
+  sub Uhorn dotbelow by Uhorndotbelow;
+  sub uhorn dotbelow by uhorndotbelow;
+  sub Y dotbelow by Ydotbelow;
+  sub y dotbelow by ydotbelow;
+  sub Y hook by Yhookabove;
+  sub y hook by yhookabove;
+  sub Y tildecomb by Ytilde;
+  sub y tildecomb by ytilde;
+  sub A caroncmb by Acaron;
+  sub a caroncmb by acaron;
+  sub I caroncmb by Icaron;
+  sub idotless caroncmb by icaron;
+  sub O caroncmb by Ocaron;
+  sub o caroncmb by ocaron;
+  sub U caroncmb by Ucaron;
+  sub u caroncmb by ucaron;
+  #sub U dieresismacroncomb.cn by uni01D5;
+  sub U dieresisnosp macroncomb by Udieresismacron;
+  sub u dieresismacroncomb.cn by udieresismacron;
+  #sub U dieresisacutecomb.cn by uni01D7;
+  sub U dieresisnosp acutecomb by Udieresisacute;
+  sub u dieresisacutecomb.cn by udieresisacute;
+  #sub U dieresiscaroncomb.cn by uni01D9;
+  sub U dieresisnosp caroncmb by Udieresiscaron;
+  sub u dieresiscaroncomb.cn by udieresiscaron;
+  #sub U dieresisgravecomb.cn by uni01DB;
+  sub U dieresisnosp gravecomb by Udieresisgrave;
+  sub u dieresisgravecomb.cn by udieresisgrave;
+  #sub A dieresismacroncomb.cn by uni01DE;
+  sub A dieresisnosp macroncomb by Adieresismacron;
+  sub a dieresismacroncomb.cn by adieresismacron;
+  #sub A dotmacroncomb.cn by uni01E0;
+  sub A dotnosp macroncomb by Adotmacron;
+  sub a dotmacroncomb.cn by adotmacron;
+  sub AE macroncomb by AEmacron;
+  sub ae macroncomb by aemacron;
+  sub G caroncmb by Gcaron;
+  sub g caroncmb by gcaron;
+  sub K caroncmb by Kcaron;
+  sub k caroncmb by kcaron;
+  sub O ogoneknosp by Oogonek;
+  sub o ogoneknosp by oogonek;
+  sub G acutecomb by Gacute;
+  sub g acutecomb by gacute;
+  sub N gravecomb by uni01F8;
+  sub n gravecomb by uni01F9;
+  sub A dblgravecmb by Adblgrave;
+  sub a dblgravecmb by adblgrave;
+  sub A breveinvnosp by Ainvertedbreve;
+  sub a breveinvnosp by ainvertedbreve;
+  sub E dblgravecmb by Edblgrave;
+  sub e dblgravecmb by edblgrave;
+  sub E breveinvnosp by Einvertedbreve;
+  sub e breveinvnosp by einvertedbreve;
+  sub I dblgravecmb by Idblgrave;
+  sub idotless dblgravecmb by idblgrave;
+  sub I breveinvnosp by Iinvertedbreve;
+  sub idotless breveinvnosp by iinvertedbreve;
+  sub O dblgravecmb by Odblgrave;
+  sub o dblgravecmb by odblgrave;
+  sub O breveinvnosp by Oinvertedbreve;
+  sub o breveinvnosp by oinvertedbreve;
+  sub R dblgravecmb by Rdblgrave;
+  sub r dblgravecmb by rdblgrave;
+  sub R breveinvnosp by Rinvertedbreve;
+  sub r breveinvnosp by rinvertedbreve;
+  sub U dblgravecmb by Udblgrave;
+  sub u dblgravecmb by udblgrave;
+  sub U breveinvnosp by Uinvertedbreve;
+  sub u breveinvnosp by uinvertedbreve;
+  sub H caroncmb by uni021E;
+  sub h caroncmb by uni021F;
+  sub A dotnosp by uni0226;
+  sub a dotnosp by uni0227;
+  sub E cedillanosp by uni0228;
+  sub e cedillanosp by uni0229;
+  #sub O dieresismacroncomb.cn by uni022A;
+  sub O dieresisnosp macroncomb by uni022A;
+  sub o dieresismacroncomb.cn by uni022B;
+  #sub O tildemacroncomb.cn by uni022C;
+  sub O tildecomb macroncomb by uni022C;
+  sub o tildemacroncomb.cn by uni022D;
+  sub O dotnosp by uni022E;
+  sub o dotnosp by uni022F;
+  #sub O dotmacroncomb.cn by uni0230;
+  sub O dotnosp macroncomb by uni0230;
+  sub o dotmacroncomb.cn by uni0231;
+  sub Y macroncomb by uni0232;
+  sub y macroncomb by uni0233;
+  sub Upsilonhooksymbol acutecomb by Upsilonacutehooksymbolgreek;
+  sub Upsilonhooksymbol dieresisnosp by Upsilondieresishooksymbolgreek;
+  sub B dotnosp by Bdotaccent;
+  sub b dotnosp by bdotaccent;
+  sub B dotbelow by Bdotbelow;
+  sub b dotbelow by bdotbelow;
+  sub B macronsubnosp by Blinebelow;
+  sub b macronsubnosp by blinebelow;
+  sub D dotnosp by Ddotaccent;
+  sub d dotnosp by ddotaccent;
+  sub D dotbelow by Ddotbelow;
+  sub d dotbelow by ddotbelow;
+  sub D macronsubnosp by Dlinebelow;
+  sub d macronsubnosp by dlinebelow;
+  sub D commaaccent by Dcedilla;
+  sub d commaaccent by dcedilla;
+  sub D circumflexsubnosp by Dcircumflexbelow;
+  sub d circumflexsubnosp by dcircumflexbelow;
+  #sub E macrongravecomb.cn by uni1E14;
+  sub E macroncomb gravecomb by Emacrongrave;
+  sub e macrongravecomb.cn by emacrongrave;
+  #sub E macronacutecomb.cn by uni1E16;
+  sub E macroncomb acutecomb by Emacronacute;
+  sub e macronacutecomb.cn by emacronacute;
+  sub E circumflexsubnosp by Ecircumflexbelow;
+  sub e circumflexsubnosp by ecircumflexbelow;
+  sub E tildesubnosp by Etildebelow;
+  sub e tildesubnosp by etildebelow;
+  sub F dotnosp by Fdotaccent;
+  sub f dotnosp by fdotaccent;
+  sub G macroncomb by Gmacron;
+  sub g macroncomb by gmacron;
+  sub H dotnosp by Hdotaccent;
+  sub h dotnosp by hdotaccent;
+  sub H dotbelow by Hdotbelow;
+  sub h dotbelow by hdotbelow;
+  sub H dieresisnosp by Hdieresis;
+  sub h dieresisnosp by hdieresis;
+  sub H brevesubnosp by Hbrevebelow;
+  sub h brevesubnosp by hbrevebelow;
+  sub I tildesubnosp by Itildebelow;
+  sub i tildesubnosp by itildebelow;
+  #sub I dieresisacutecomb.cn by Idieresisacute;
+  sub I dieresisnosp acutecomb by Idieresisacute;
+  sub idotless dieresisacutecomb.cn by idieresisacute;
+  sub K acutecomb by Kacute;
+  sub k acutecomb by kacute;
+  sub K dotbelow by Kdotbelow;
+  sub k dotbelow by kdotbelow;
+  sub K macronsubnosp by Klinebelow;
+  sub k macronsubnosp by klinebelow;
+  sub L dotbelow by Ldotbelow;
+  sub l dotbelow by ldotbelow;
+  sub L macronsubnosp by Llinebelow;
+  sub l macronsubnosp by llinebelow;
+  sub L circumflexsubnosp by Lcircumflexbelow;
+  sub l circumflexsubnosp by lcircumflexbelow;
+  sub M acutecomb by Macute;
+  sub m acutecomb by macute;
+  sub M dotnosp by Mdotaccent;
+  sub m dotnosp by mdotaccent;
+  sub M dotbelow by Mdotbelow;
+  sub m dotbelow by mdotbelow;
+  sub N dotnosp by Ndotaccent;
+  sub n dotnosp by ndotaccent;
+  sub N dotbelow by Ndotbelow;
+  sub n dotbelow by ndotbelow;
+  sub N macronsubnosp by Nlinebelow;
+  sub n macronsubnosp by nlinebelow;
+  sub N circumflexsubnosp by Ncircumflexbelow;
+  sub n circumflexsubnosp by ncircumflexbelow;
+  #sub O tildeacutecomb.cn by uni1E4C;
+  sub O tildecomb acutecomb by Otildeacute;
+  sub o tildeacutecomb by otildeacute;
+  #sub O tildedieresiscomb.cn by uni1E4E;
+  sub O tildecomb dieresisnosp by Otildedieresis;
+  sub o tildedieresiscomb.cn by otildedieresis;
+  #sub O macrongravecomb.cn by uni1E50;
+  sub O macroncomb gravecomb by Omacrongrave;
+  sub o macrongravecomb.cn by omacrongrave;
+  #sub O macronacutecomb.cn by uni1E52;
+  sub O macroncomb acutecomb by Omacronacute;
+  sub o macronacutecomb.cn by omacronacute;
+  sub P acutecomb by Pacute;
+  sub p acutecomb by pacute;
+  sub P dotnosp by Pdotaccent;
+  sub p dotnosp by pdotaccent;
+  sub R dotnosp by Rdotaccent;
+  sub r dotnosp by rdotaccent;
+  sub R dotbelow by Rdotbelow;
+  sub r dotbelow by rdotbelow;
+  sub R macronsubnosp by Rlinebelow;
+  sub r macronsubnosp by rlinebelow;
+  sub S dotnosp by Sdotaccent;
+  sub s dotnosp by sdotaccent;
+  sub S dotbelow by Sdotbelow;
+  sub s dotbelow by sdotbelow;
+  #sub S acutedotcomb.cn by uni1E64;
+  sub S acutecomb dotnosp by Sacutedotaccent;
+  sub s acutedotcomb.cn by sacutedotaccent;
+  #sub S carondotcomb.cn by uni1E66;
+  sub S caroncmb dotnosp by Scarondotaccent;
+  sub s carondotcomb.cn by scarondotaccent;
+  sub T dotnosp by Tdotaccent;
+  sub t dotnosp by tdotaccent;
+  sub T dotbelow by Tdotbelow;
+  sub t dotbelow by tdotbelow;
+  sub T macronsubnosp by Tlinebelow;
+  sub t macronsubnosp by tlinebelow;
+  sub T circumflexsubnosp by Tcircumflexbelow;
+  sub t circumflexsubnosp by tcircumflexbelow;
+  sub U dotdblsubnosp by Udieresisbelow;
+  sub u dotdblsubnosp by udieresisbelow;
+  sub U tildesubnosp by Utildebelow;
+  sub u tildesubnosp by utildebelow;
+  sub U circumflexsubnosp by Ucircumflexbelow;
+  sub u circumflexsubnosp by ucircumflexbelow;
+  #sub U tildeacutecomb.cn by uni1E78;
+  sub U tildecomb acutecomb by Utildeacute;
+  sub u tildeacutecomb by utildeacute;
+  #sub U macrondieresiscomb.cn by uni1E7A;
+  sub U macroncomb dieresisnosp by Umacrondieresis;
+  sub u macrondieresiscomb.cn by umacrondieresis;
+  sub V tildecomb by Vtilde;
+  sub v tildecomb by vtilde;
+  sub V dotbelow by Vdotbelow;
+  sub v dotbelow by vdotbelow;
+  sub W dotnosp by Wdotaccent;
+  sub w dotnosp by wdotaccent;
+  sub W dotbelow by Wdotbelow;
+  sub w dotbelow by wdotbelow;
+  sub X dotnosp by Xdotaccent;
+  sub x dotnosp by xdotaccent;
+  sub X dieresisnosp by Xdieresis;
+  sub x dieresisnosp by xdieresis;
+  sub Y dotnosp by Ydotaccent;
+  sub y dotnosp by ydotaccent;
+  sub Z circumflexnosp by Zcircumflex;
+  sub z circumflexnosp by zcircumflex;
+  sub Z dotbelow by Zdotbelow;
+  sub z dotbelow by zdotbelow;
+  sub Z macronsubnosp by Zlinebelow;
+  sub z macronsubnosp by zlinebelow;
+  sub h macronsubnosp by hlinebelow;
+  sub t dieresisnosp by tdieresis;
+  sub w ringnosp by wring;
+  sub y ringnosp by yring;
+  sub longs dotnosp by slongdotaccent;
+  sub A ringsubnosp by Aringbelow;
+  sub a ringsubnosp by aringbelow;
+} ccmp03;
diff --git a/src/features/cpsp.fea b/src/features/cpsp.fea
new file mode 100644
index 000000000..588933627
--- /dev/null
+++ b/src/features/cpsp.fea
@@ -0,0 +1 @@
+pos @Uppercase <16 0 32 0>;
diff --git a/src/features/cv01-one.fea b/src/features/cv01-one.fea
new file mode 100644
index 000000000..860915d97
--- /dev/null
+++ b/src/features/cv01-one.fea
@@ -0,0 +1,5 @@
+cvParameters { FeatUILabelNameID { name "Alternate one"; }; };
+sub one by one.ss01;
+sub one.tf by one.tf.ss01;
+sub one.squared by one.ss01.squared;
+sub one.circled by one.ss01.circled;
diff --git a/src/features/cv02-four.fea b/src/features/cv02-four.fea
new file mode 100644
index 000000000..6e2b3bd71
--- /dev/null
+++ b/src/features/cv02-four.fea
@@ -0,0 +1,5 @@
+cvParameters { FeatUILabelNameID { name "Open four"; }; };
+sub four by four.ss01;
+sub four.tf by four.tf.ss01;
+sub four.squared by four.ss01.squared;
+sub four.circled by four.ss01.circled;
diff --git a/src/features/cv03-six.fea b/src/features/cv03-six.fea
new file mode 100644
index 000000000..1e26b2e2e
--- /dev/null
+++ b/src/features/cv03-six.fea
@@ -0,0 +1,5 @@
+cvParameters { FeatUILabelNameID { name "Open six"; }; };
+sub six by six.ss01;
+sub six.tf by six.tf.ss01;
+sub six.squared by six.ss01.squared;
+sub six.circled by six.ss01.circled;
diff --git a/src/features/cv04-nine.fea b/src/features/cv04-nine.fea
new file mode 100644
index 000000000..f24b3352e
--- /dev/null
+++ b/src/features/cv04-nine.fea
@@ -0,0 +1,5 @@
+cvParameters { FeatUILabelNameID { name "Open nine"; }; };
+sub nine by nine.ss01;
+sub nine.tf by nine.tf.ss01;
+sub nine.squared by nine.ss01.squared;
+sub nine.circled by nine.ss01.circled;
diff --git a/src/features/cv05-l-tail.fea b/src/features/cv05-l-tail.fea
new file mode 100644
index 000000000..38da8fcdd
--- /dev/null
+++ b/src/features/cv05-l-tail.fea
@@ -0,0 +1,14 @@
+cvParameters { FeatUILabelNameID { name "Lower-case L with tail"; }; };
+sub l by l.ss02;
+sub lslash by lslash.ss02;
+sub lbar by lbar.ss02;
+sub lmidtilde by lmidtilde.ss02;
+sub lbelt by lbelt.ss02;
+sub ldot by ldot.ss02;
+sub lacute by lacute.ss02;
+sub lcommaaccent by lcommaaccent.ss02;
+sub lcaron by lcaron.ss02;
+sub ldotbelow by ldotbelow.ss02;
+sub ldotbelowmacron by ldotbelowmacron.ss02;
+sub llinebelow by llinebelow.ss02;
+sub lcircumflexbelow by lcircumflexbelow.ss02;
diff --git a/src/features/cv06-r.fea b/src/features/cv06-r.fea
new file mode 100644
index 000000000..752a642bc
--- /dev/null
+++ b/src/features/cv06-r.fea
@@ -0,0 +1,14 @@
+cvParameters { FeatUILabelNameID { name "Lower case R with curved tail"; }; };
+sub r by r.1;
+sub rrthook by rrthook.1;
+sub uni024D by uni024D.1;
+sub rdescend by rdescend.1;
+sub racute by racute.1;
+sub rcommaaccent by rcommaaccent.1;
+sub rcaron by rcaron.1;
+sub rdblgrave by rdblgrave.1;
+sub rinvertedbreve by rinvertedbreve.1;
+sub rdotaccent by rdotaccent.1;
+sub rdotbelow by rdotbelow.1;
+sub rdotbelowmacron by rdotbelowmacron.1;
+sub rlinebelow by rlinebelow.1;
diff --git a/src/features/cv07-germandbls.fea b/src/features/cv07-germandbls.fea
new file mode 100644
index 000000000..64556ae2d
--- /dev/null
+++ b/src/features/cv07-germandbls.fea
@@ -0,0 +1,2 @@
+cvParameters { FeatUILabelNameID { name "Alternate German double s"; }; };
+sub germandbls by germandbls.1;
diff --git a/src/features/cv08-i-serif.fea b/src/features/cv08-i-serif.fea
new file mode 100644
index 000000000..0d7835346
--- /dev/null
+++ b/src/features/cv08-i-serif.fea
@@ -0,0 +1,33 @@
+cvParameters { FeatUILabelNameID { name "Upper case i with serif"; }; };
+sub I by I.1;
+sub Idieresis by Idieresis.1;
+sub Idieresisacute by Idieresisacute.1;
+sub Istroke by Istroke.1;
+sub Itildebelow by Itildebelow.1;
+sub Igrave by Igrave.1;
+sub Iacute by Iacute.1;
+sub Icircumflex by Icircumflex.1;
+sub Itilde by Itilde.1;
+sub Imacron by Imacron.1;
+sub Ibreve by Ibreve.1;
+sub Iogonek by Iogonek.1;
+sub Idotaccent by Idotaccent.1;
+sub Icaron by Icaron.1;
+sub Idblgrave by Idblgrave.1;
+sub Iinvertedbreve by Iinvertedbreve.1;
+sub Ihookabove by Ihookabove.1;
+sub Idotbelow by Idotbelow.1;
+sub uni1F38 by uni1F38.1;
+sub uni1F39 by uni1F39.1;
+sub uni1F3A by uni1F3A.1;
+sub uni1F3B by uni1F3B.1;
+sub uni1F3C by uni1F3C.1;
+sub uni1F3D by uni1F3D.1;
+sub uni1F3E by uni1F3E.1;
+sub uni1F3F by uni1F3F.1;
+sub uni1FD8 by uni1FD8.1;
+sub uni1FD9 by uni1FD9.1;
+sub uni1FDA by uni1FDA.1;
+sub uni1FDB by uni1FDB.1;
+sub afii10055 by afii10055.1;
+sub afii10056 by afii10056.1;
diff --git a/src/features/cv09-three.fea b/src/features/cv09-three.fea
new file mode 100644
index 000000000..448a561b7
--- /dev/null
+++ b/src/features/cv09-three.fea
@@ -0,0 +1,5 @@
+cvParameters { FeatUILabelNameID { name "Flat top three"; }; };
+sub three by three.1;
+sub three.tf by three.1.tf;
+sub three.squared by three.1.squared;
+sub three.circled by three.1.circled;
diff --git a/src/features/cv10-g-spur.fea b/src/features/cv10-g-spur.fea
new file mode 100644
index 000000000..58f51ab2d
--- /dev/null
+++ b/src/features/cv10-g-spur.fea
@@ -0,0 +1,11 @@
+cvParameters { FeatUILabelNameID { name "Captital G with spur"; }; };
+sub G by G.1;
+sub Gbar by Gbar.1;
+sub Ghook by Ghook.1;
+sub Gcircumflex by Gcircumflex.1;
+sub Gbreve by Gbreve.1;
+sub Gdotaccent by Gdotaccent.1;
+sub Gcommaaccent by Gcommaaccent.1;
+sub Gcaron by Gcaron.1;
+sub Gacute by Gacute.1;
+sub Gmacron by Gmacron.1;
diff --git a/src/features/cv11-single-storey-a.fea b/src/features/cv11-single-storey-a.fea
new file mode 100644
index 000000000..941f2f540
--- /dev/null
+++ b/src/features/cv11-single-storey-a.fea
@@ -0,0 +1,33 @@
+cvParameters { FeatUILabelNameID { name "Single storey a"; }; };
+sub a by a.1;
+sub aacute by aacute.1;
+sub abreve by abreve.1;
+sub abreveacute by abreveacute.1;
+sub abrevedotbelow by abrevedotbelow.1;
+sub abrevegrave by abrevegrave.1;
+sub abrevehookabove by abrevehookabove.1;
+sub abrevetilde by abrevetilde.1;
+sub acaron by acaron.1;
+sub acircumflex by acircumflex.1;
+sub acircumflexacute by acircumflexacute.1;
+sub acircumflexdotbelow by acircumflexdotbelow.1;
+sub acircumflexgrave by acircumflexgrave.1;
+sub acircumflexhookabove by acircumflexhookabove.1;
+sub acircumflextilde by acircumflextilde.1;
+sub adblgrave by adblgrave.1;
+sub adieresis by adieresis.1;
+sub adieresismacron by adieresismacron.1;
+sub uni0227 by uni0227.1;
+sub adotbelow by adotbelow.1;
+sub adotmacron by adotmacron.1;
+sub agrave by agrave.1;
+sub ahookabove by ahookabove.1;
+sub ainvertedbreve by ainvertedbreve.1;
+sub amacron by amacron.1;
+sub aogonek by aogonek.1;
+sub arighthalfring by arighthalfring.1;
+sub aring by aring.1;
+sub aringacute by aringacute.1;
+sub aringbelow by aringbelow.1;
+sub atilde by atilde.1;
+sub acyrillic by a.1;  # acyrillic is just a reference to /a
diff --git a/src/features/dlig.fea b/src/features/dlig.fea
new file mode 100644
index 000000000..cfaa67c56
--- /dev/null
+++ b/src/features/dlig.fea
@@ -0,0 +1,4 @@
+sub exclam question by interrobang;
+sub question exclam by interrobang;
+sub exclamdown questiondown by invertedinterrobang;
+sub questiondown exclamdown by invertedinterrobang;
diff --git a/src/features/frac.fea b/src/features/frac.fea
new file mode 100644
index 000000000..6aad1f76a
--- /dev/null
+++ b/src/features/frac.fea
@@ -0,0 +1,198 @@
+@figures = [
+    zero
+    one
+    two
+    three
+    four
+    five
+    six
+    seven
+    eight
+    nine
+];
+@numerators = [
+    zero.frac
+    one.frac
+    two.frac
+    three.frac
+    four.frac
+    five.frac
+    six.frac
+    seven.frac
+    eight.frac
+    nine.frac
+];
+@numerators2 = [
+    zero.numr
+    one.numr
+    two.numr
+    three.numr
+    four.numr
+    five.numr
+    six.numr
+    seven.numr
+    eight.numr
+    nine.numr
+];
+@denominators = [
+    zero.dnomf
+    one.dnomf
+    two.dnomf
+    three.dnomf
+    four.dnomf
+    five.dnomf
+    six.dnomf
+    seven.dnomf
+    eight.dnomf
+    nine.dnomf
+];
+@denominators2 = [
+    zero.dnom
+    one.dnom
+    two.dnom
+    three.dnom
+    four.dnom
+    five.dnom
+    six.dnom
+    seven.dnom
+    eight.dnom
+    nine.dnom
+];
+@subscripts = [
+    zero.subs
+    one.subs
+    two.subs
+    three.subs
+    four.subs
+    five.subs
+    six.subs
+    seven.subs
+    eight.subs
+    nine.subs
+];
+
+lookup FractionBar {
+    ignore sub slash @figures @figures @figures @figures @figures @figures @figures @figures @figures @figures slash';
+    ignore sub slash' @figures @figures @figures @figures @figures @figures @figures @figures @figures @figures slash;
+    ignore sub slash @figures @figures @figures @figures @figures @figures @figures @figures @figures slash';
+    ignore sub slash' @figures @figures @figures @figures @figures @figures @figures @figures @figures slash;
+    ignore sub slash @figures @figures @figures @figures @figures @figures @figures @figures slash';
+    ignore sub slash' @figures @figures @figures @figures @figures @figures @figures @figures slash;
+    ignore sub slash @figures @figures @figures @figures @figures @figures @figures slash';
+    ignore sub slash' @figures @figures @figures @figures @figures @figures @figures slash;
+    ignore sub slash @figures @figures @figures @figures @figures @figures slash';
+    ignore sub slash' @figures @figures @figures @figures @figures @figures slash;
+    ignore sub slash @figures @figures @figures @figures @figures slash';
+    ignore sub slash' @figures @figures @figures @figures @figures slash;
+    ignore sub slash @figures @figures @figures @figures slash';
+    ignore sub slash' @figures @figures @figures @figures slash;
+    ignore sub slash @figures @figures @figures slash';
+    ignore sub slash' @figures @figures @figures slash;
+    ignore sub slash @figures @figures slash';
+    ignore sub slash' @figures @figures slash;
+    ignore sub slash @figures slash';
+    ignore sub slash' @figures slash;
+    sub @figures slash' @figures by fraction;
+} FractionBar;
+
+lookup Numerator1 {
+    sub @figures'
+    fraction by @numerators;
+} Numerator1;
+
+lookup Numerator2 {
+    sub @figures'
+        [@numerators @numerators2]
+    fraction by @numerators;
+} Numerator2;
+
+lookup Numerator3 {
+    sub @figures'
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+    fraction by @numerators;
+} Numerator3;
+
+lookup Numerator4 {
+    sub @figures'
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+    fraction by @numerators;
+} Numerator4;
+
+lookup Numerator5 {
+    sub @figures'
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+    fraction by @numerators;
+} Numerator5;
+
+lookup Numerator6 {
+    sub @figures'
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+    fraction by @numerators;
+} Numerator6;
+
+lookup Numerator7 {
+    sub @figures'
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+    fraction by @numerators;
+} Numerator7;
+
+lookup Numerator8 {
+    sub @figures'
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+    fraction by @numerators;
+} Numerator8;
+
+lookup Numerator9 {
+    sub @figures'
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+    fraction by @numerators;
+} Numerator9;
+
+lookup Numerator10 {
+    sub @figures'
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+        [@numerators @numerators2]
+    fraction by @numerators;
+} Numerator10;
+
+lookup Denominator {
+    sub [fraction @denominators @denominators2 onefraction] @figures' by @denominators;
+    sub [fraction @denominators @denominators2 onefraction] @subscripts' by @denominators;
+} Denominator;
+
+sub @figures space' [@numerators @numerators2] by thinspace;
diff --git a/src/features/liga.fea b/src/features/liga.fea
new file mode 100644
index 000000000..863ce2ba6
--- /dev/null
+++ b/src/features/liga.fea
@@ -0,0 +1,282 @@
+@DASH = [
+  hyphen
+  endash
+  emdash
+];
+@DASH_CASE = [
+  hyphen.case
+  endash.case
+  emdash.case
+];
+
+# ->
+sub hyphen greater by rightArrow;
+sub [endash emdash] greater by rightLongArrow;  # legacy
+sub @DASH @DASH greater by rightLongArrow;
+sub @DASH @DASH @DASH greater by rightLongArrow2;
+# <-
+sub less @DASH @DASH by leftLongArrow;
+sub less @DASH @DASH @DASH by leftLongArrow2;
+ignore sub less' hyphen' @Numeral; # ignore e.g. "<-3" ("less than negative")
+sub less' hyphen' by leftArrow;
+sub less [endash emdash] by leftLongArrow;  # legacy
+# <->
+sub less rightArrow by leftRightArrow; #  <,->
+sub leftArrow greater by leftRightArrow; # <-,-
+sub less rightLongArrow by leftRightLongArrow; # <,-->
+sub leftLongArrow greater by leftRightLongArrow; # <--,>
+
+# x surrounded by numbers, e.g. 3x4 -> 3×4
+sub @Numeral x' @Numeral                                                 by multiply; # 3x9
+sub @Numeral @Whitespace x' @Numeral                                     by multiply; # 3 x9
+sub @Numeral @Whitespace @Whitespace x' @Numeral                         by multiply; # 3  x9
+sub @Numeral x' @Whitespace @Numeral                                     by multiply; # 3x 9
+sub @Numeral @Whitespace x' @Whitespace @Numeral                         by multiply; # 3 x 9
+sub @Numeral @Whitespace @Whitespace x' @Whitespace @Numeral             by multiply; # 3  x 9
+sub @Numeral x' @Whitespace @Whitespace @Numeral                         by multiply; # 3x  9
+sub @Numeral @Whitespace x' @Whitespace @Whitespace @Numeral             by multiply; # 3 x  9
+sub @Numeral @Whitespace @Whitespace x' @Whitespace @Whitespace @Numeral by multiply; # 3  x  9
+
+# * enclosingsquarecomb -> composite
+sub A enclosingsquarecomb by A.squared;
+sub B enclosingsquarecomb by B.squared;
+sub C enclosingsquarecomb by C.squared;
+sub D enclosingsquarecomb by D.squared;
+sub E enclosingsquarecomb by E.squared;
+sub F enclosingsquarecomb by F.squared;
+sub G enclosingsquarecomb by G.squared;
+sub H enclosingsquarecomb by H.squared;
+sub I enclosingsquarecomb by I.squared;
+sub J enclosingsquarecomb by J.squared;
+sub K enclosingsquarecomb by K.squared;
+sub L enclosingsquarecomb by L.squared;
+sub M enclosingsquarecomb by M.squared;
+sub N enclosingsquarecomb by N.squared;
+sub O enclosingsquarecomb by O.squared;
+sub P enclosingsquarecomb by P.squared;
+sub Q enclosingsquarecomb by Q.squared;
+sub R enclosingsquarecomb by R.squared;
+sub S enclosingsquarecomb by S.squared;
+sub T enclosingsquarecomb by T.squared;
+sub U enclosingsquarecomb by U.squared;
+sub V enclosingsquarecomb by V.squared;
+sub W enclosingsquarecomb by W.squared;
+sub X enclosingsquarecomb by X.squared;
+sub Y enclosingsquarecomb by Y.squared;
+sub Z enclosingsquarecomb by Z.squared;
+sub zero enclosingsquarecomb by zero.squared;
+sub one enclosingsquarecomb by one.squared;
+sub two enclosingsquarecomb by two.squared;
+sub three enclosingsquarecomb by three.squared;
+sub four enclosingsquarecomb by four.squared;
+sub five enclosingsquarecomb by five.squared;
+sub six enclosingsquarecomb by six.squared;
+sub seven enclosingsquarecomb by seven.squared;
+sub eight enclosingsquarecomb by eight.squared;
+sub nine enclosingsquarecomb by nine.squared;
+sub zero.slash enclosingsquarecomb by zero.slash.squared;
+sub one.ss01 enclosingsquarecomb by one.ss01.squared;
+sub three.1 enclosingsquarecomb by three.1.squared;
+sub four.ss01 enclosingsquarecomb by four.ss01.squared;
+sub six.ss01 enclosingsquarecomb by six.ss01.squared;
+sub nine.ss01 enclosingsquarecomb by nine.ss01.squared;
+sub exclam enclosingsquarecomb by exclam.squared;
+sub question enclosingsquarecomb by question.squared;
+sub numbersign enclosingsquarecomb by numbersign.squared;
+sub hyphen enclosingsquarecomb by hyphen.squared;
+sub less enclosingsquarecomb by less.squared;
+sub greater enclosingsquarecomb by greater.squared;
+sub equal enclosingsquarecomb by equal.squared;
+sub plus enclosingsquarecomb by plus.squared;
+sub minus enclosingsquarecomb by minus.squared;
+sub multiply enclosingsquarecomb by multiply.squared;
+sub divide enclosingsquarecomb by divide.squared;
+sub upArrow enclosingsquarecomb by upArrow.squared;
+sub downArrow enclosingsquarecomb by downArrow.squared;
+sub leftArrow enclosingsquarecomb by leftArrow.squared;
+sub rightArrow enclosingsquarecomb by rightArrow.squared;
+sub dngb_check enclosingsquarecomb by dngb_check.squared;
+sub dngb_ballotx enclosingsquarecomb by dngb_ballotx.squared;
+
+# enclosingsquarecomb * -> composite
+sub enclosingsquarecomb A by A.squared;
+sub enclosingsquarecomb B by B.squared;
+sub enclosingsquarecomb C by C.squared;
+sub enclosingsquarecomb D by D.squared;
+sub enclosingsquarecomb E by E.squared;
+sub enclosingsquarecomb F by F.squared;
+sub enclosingsquarecomb G by G.squared;
+sub enclosingsquarecomb H by H.squared;
+sub enclosingsquarecomb I by I.squared;
+sub enclosingsquarecomb J by J.squared;
+sub enclosingsquarecomb K by K.squared;
+sub enclosingsquarecomb L by L.squared;
+sub enclosingsquarecomb M by M.squared;
+sub enclosingsquarecomb N by N.squared;
+sub enclosingsquarecomb O by O.squared;
+sub enclosingsquarecomb P by P.squared;
+sub enclosingsquarecomb Q by Q.squared;
+sub enclosingsquarecomb R by R.squared;
+sub enclosingsquarecomb S by S.squared;
+sub enclosingsquarecomb T by T.squared;
+sub enclosingsquarecomb U by U.squared;
+sub enclosingsquarecomb V by V.squared;
+sub enclosingsquarecomb W by W.squared;
+sub enclosingsquarecomb X by X.squared;
+sub enclosingsquarecomb Y by Y.squared;
+sub enclosingsquarecomb Z by Z.squared;
+sub enclosingsquarecomb zero by zero.squared;
+sub enclosingsquarecomb one by one.squared;
+sub enclosingsquarecomb two by two.squared;
+sub enclosingsquarecomb three by three.squared;
+sub enclosingsquarecomb four by four.squared;
+sub enclosingsquarecomb five by five.squared;
+sub enclosingsquarecomb six by six.squared;
+sub enclosingsquarecomb seven by seven.squared;
+sub enclosingsquarecomb eight by eight.squared;
+sub enclosingsquarecomb nine by nine.squared;
+sub enclosingsquarecomb zero.slash by zero.slash.squared;
+sub enclosingsquarecomb one.ss01 by one.ss01.squared;
+sub enclosingsquarecomb three.1 by three.1.squared;
+sub enclosingsquarecomb four.ss01 by four.ss01.squared;
+sub enclosingsquarecomb six.ss01 by six.ss01.squared;
+sub enclosingsquarecomb nine.ss01 by nine.ss01.squared;
+sub enclosingsquarecomb exclam by exclam.squared;
+sub enclosingsquarecomb question by question.squared;
+sub enclosingsquarecomb numbersign by numbersign.squared;
+sub enclosingsquarecomb hyphen by hyphen.squared;
+sub enclosingsquarecomb less by less.squared;
+sub enclosingsquarecomb greater by greater.squared;
+sub enclosingsquarecomb equal by equal.squared;
+sub enclosingsquarecomb plus by plus.squared;
+sub enclosingsquarecomb minus by minus.squared;
+sub enclosingsquarecomb multiply by multiply.squared;
+sub enclosingsquarecomb divide by divide.squared;
+sub enclosingsquarecomb upArrow by upArrow.squared;
+sub enclosingsquarecomb downArrow by downArrow.squared;
+sub enclosingsquarecomb leftArrow by leftArrow.squared;
+sub enclosingsquarecomb rightArrow by rightArrow.squared;
+sub enclosingsquarecomb dngb_check by dngb_check.squared;
+sub enclosingsquarecomb dngb_ballotx by dngb_ballotx.squared;
+
+# * enclosingcirclecomb -> composite
+sub A enclosingcirclecomb by A.circled;
+sub B enclosingcirclecomb by B.circled;
+sub C enclosingcirclecomb by C.circled;
+sub D enclosingcirclecomb by D.circled;
+sub E enclosingcirclecomb by E.circled;
+sub F enclosingcirclecomb by F.circled;
+sub G enclosingcirclecomb by G.circled;
+sub H enclosingcirclecomb by H.circled;
+sub I enclosingcirclecomb by I.circled;
+sub J enclosingcirclecomb by J.circled;
+sub K enclosingcirclecomb by K.circled;
+sub L enclosingcirclecomb by L.circled;
+sub M enclosingcirclecomb by M.circled;
+sub N enclosingcirclecomb by N.circled;
+sub O enclosingcirclecomb by O.circled;
+sub P enclosingcirclecomb by P.circled;
+sub Q enclosingcirclecomb by Q.circled;
+sub R enclosingcirclecomb by R.circled;
+sub S enclosingcirclecomb by S.circled;
+sub T enclosingcirclecomb by T.circled;
+sub U enclosingcirclecomb by U.circled;
+sub V enclosingcirclecomb by V.circled;
+sub W enclosingcirclecomb by W.circled;
+sub X enclosingcirclecomb by X.circled;
+sub Y enclosingcirclecomb by Y.circled;
+sub Z enclosingcirclecomb by Z.circled;
+sub zero enclosingcirclecomb by zero.circled;
+sub one enclosingcirclecomb by one.circled;
+sub two enclosingcirclecomb by two.circled;
+sub three enclosingcirclecomb by three.circled;
+sub four enclosingcirclecomb by four.circled;
+sub five enclosingcirclecomb by five.circled;
+sub six enclosingcirclecomb by six.circled;
+sub seven enclosingcirclecomb by seven.circled;
+sub eight enclosingcirclecomb by eight.circled;
+sub nine enclosingcirclecomb by nine.circled;
+sub zero.slash enclosingcirclecomb by zero.slash.circled;
+sub one.ss01 enclosingcirclecomb by one.ss01.circled;
+sub three.1 enclosingcirclecomb by three.1.circled;
+sub four.ss01 enclosingcirclecomb by four.ss01.circled;
+sub six.ss01 enclosingcirclecomb by six.ss01.circled;
+sub nine.ss01 enclosingcirclecomb by nine.ss01.circled;
+sub exclam enclosingcirclecomb by exclam.circled;
+sub question enclosingcirclecomb by question.circled;
+sub numbersign enclosingcirclecomb by numbersign.circled;
+sub hyphen enclosingcirclecomb by hyphen.circled;
+sub less enclosingcirclecomb by less.circled;
+sub greater enclosingcirclecomb by greater.circled;
+sub equal enclosingcirclecomb by equal.circled;
+sub plus enclosingcirclecomb by plus.circled;
+sub minus enclosingcirclecomb by minus.circled;
+sub multiply enclosingcirclecomb by multiply.circled;
+sub divide enclosingcirclecomb by divide.circled;
+sub upArrow enclosingcirclecomb by upArrow.circled;
+sub downArrow enclosingcirclecomb by downArrow.circled;
+sub leftArrow enclosingcirclecomb by leftArrow.circled;
+sub rightArrow enclosingcirclecomb by rightArrow.circled;
+sub dngb_check enclosingcirclecomb by dngb_check.circled;
+sub dngb_ballotx enclosingcirclecomb by dngb_ballotx.circled;
+
+# enclosingcirclecomb * -> composite
+sub enclosingcirclecomb A by A.circled;
+sub enclosingcirclecomb B by B.circled;
+sub enclosingcirclecomb C by C.circled;
+sub enclosingcirclecomb D by D.circled;
+sub enclosingcirclecomb E by E.circled;
+sub enclosingcirclecomb F by F.circled;
+sub enclosingcirclecomb G by G.circled;
+sub enclosingcirclecomb H by H.circled;
+sub enclosingcirclecomb I by I.circled;
+sub enclosingcirclecomb J by J.circled;
+sub enclosingcirclecomb K by K.circled;
+sub enclosingcirclecomb L by L.circled;
+sub enclosingcirclecomb M by M.circled;
+sub enclosingcirclecomb N by N.circled;
+sub enclosingcirclecomb O by O.circled;
+sub enclosingcirclecomb P by P.circled;
+sub enclosingcirclecomb Q by Q.circled;
+sub enclosingcirclecomb R by R.circled;
+sub enclosingcirclecomb S by S.circled;
+sub enclosingcirclecomb T by T.circled;
+sub enclosingcirclecomb U by U.circled;
+sub enclosingcirclecomb V by V.circled;
+sub enclosingcirclecomb W by W.circled;
+sub enclosingcirclecomb X by X.circled;
+sub enclosingcirclecomb Y by Y.circled;
+sub enclosingcirclecomb Z by Z.circled;
+sub enclosingcirclecomb zero by zero.circled;
+sub enclosingcirclecomb one by one.circled;
+sub enclosingcirclecomb two by two.circled;
+sub enclosingcirclecomb three by three.circled;
+sub enclosingcirclecomb four by four.circled;
+sub enclosingcirclecomb five by five.circled;
+sub enclosingcirclecomb six by six.circled;
+sub enclosingcirclecomb seven by seven.circled;
+sub enclosingcirclecomb eight by eight.circled;
+sub enclosingcirclecomb nine by nine.circled;
+sub enclosingcirclecomb zero.slash by zero.slash.circled;
+sub enclosingcirclecomb one.ss01 by one.ss01.circled;
+sub enclosingcirclecomb three.1 by three.1.circled;
+sub enclosingcirclecomb four.ss01 by four.ss01.circled;
+sub enclosingcirclecomb six.ss01 by six.ss01.circled;
+sub enclosingcirclecomb nine.ss01 by nine.ss01.circled;
+sub enclosingcirclecomb exclam by exclam.circled;
+sub enclosingcirclecomb question by question.circled;
+sub enclosingcirclecomb numbersign by numbersign.circled;
+sub enclosingcirclecomb hyphen by hyphen.circled;
+sub enclosingcirclecomb less by less.circled;
+sub enclosingcirclecomb greater by greater.circled;
+sub enclosingcirclecomb equal by equal.circled;
+sub enclosingcirclecomb plus by plus.circled;
+sub enclosingcirclecomb minus by minus.circled;
+sub enclosingcirclecomb multiply by multiply.circled;
+sub enclosingcirclecomb divide by divide.circled;
+sub enclosingcirclecomb upArrow by upArrow.circled;
+sub enclosingcirclecomb downArrow by downArrow.circled;
+sub enclosingcirclecomb leftArrow by leftArrow.circled;
+sub enclosingcirclecomb rightArrow by rightArrow.circled;
+sub enclosingcirclecomb dngb_check by dngb_check.circled;
+sub enclosingcirclecomb dngb_ballotx by dngb_ballotx.circled;
diff --git a/src/features/salt.fea b/src/features/salt.fea
new file mode 100644
index 000000000..2d3fc9621
--- /dev/null
+++ b/src/features/salt.fea
@@ -0,0 +1,81 @@
+sub one by one.ss01;
+sub one.tf by one.tf.ss01;
+sub three by three.1;
+sub three.tf by three.1.tf;
+sub four by four.ss01;
+sub four.tf by four.tf.ss01;
+sub six by six.ss01;
+sub six.tf by six.tf.ss01;
+sub nine by nine.ss01;
+sub nine.tf by nine.tf.ss01;
+
+sub a by a.1;
+sub aacute by aacute.1;
+sub abreve by abreve.1;
+sub abreveacute by abreveacute.1;
+sub abrevedotbelow by abrevedotbelow.1;
+sub abrevegrave by abrevegrave.1;
+sub abrevehookabove by abrevehookabove.1;
+sub abrevetilde by abrevetilde.1;
+sub acaron by acaron.1;
+sub acircumflex by acircumflex.1;
+sub acircumflexacute by acircumflexacute.1;
+sub acircumflexdotbelow by acircumflexdotbelow.1;
+sub acircumflexgrave by acircumflexgrave.1;
+sub acircumflexhookabove by acircumflexhookabove.1;
+sub acircumflextilde by acircumflextilde.1;
+sub adblgrave by adblgrave.1;
+sub adieresis by adieresis.1;
+sub adieresismacron by adieresismacron.1;
+sub uni0227 by uni0227.1;
+sub adotbelow by adotbelow.1;
+sub adotmacron by adotmacron.1;
+sub agrave by agrave.1;
+sub ahookabove by ahookabove.1;
+sub ainvertedbreve by ainvertedbreve.1;
+sub amacron by amacron.1;
+sub aogonek by aogonek.1;
+sub arighthalfring by arighthalfring.1;
+sub aring by aring.1;
+sub aringacute by aringacute.1;
+sub aringbelow by aringbelow.1;
+sub atilde by atilde.1;
+
+sub l by l.ss02;
+sub lslash by lslash.ss02;
+sub lbar by lbar.ss02;
+sub lmidtilde by lmidtilde.ss02;
+sub lbelt by lbelt.ss02;
+sub ldot by ldot.ss02;
+sub lacute by lacute.ss02;
+sub lcommaaccent by lcommaaccent.ss02;
+sub lcaron by lcaron.ss02;
+sub ldotbelow by ldotbelow.ss02;
+sub ldotbelowmacron by ldotbelowmacron.ss02;
+sub llinebelow by llinebelow.ss02;
+sub lcircumflexbelow by lcircumflexbelow.ss02;
+
+sub r by r.1;
+sub rrthook by rrthook.1;
+sub uni024D by uni024D.1;
+sub rdescend by rdescend.1;
+sub racute by racute.1;
+sub rcommaaccent by rcommaaccent.1;
+sub rcaron by rcaron.1;
+sub rdblgrave by rdblgrave.1;
+sub rinvertedbreve by rinvertedbreve.1;
+sub rdotaccent by rdotaccent.1;
+sub rdotbelow by rdotbelow.1;
+sub rdotbelowmacron by rdotbelowmacron.1;
+sub rlinebelow by rlinebelow.1;
+
+sub G by G.1;
+sub Gbar by Gbar.1;
+sub Ghook by Ghook.1;
+sub Gcircumflex by Gcircumflex.1;
+sub Gbreve by Gbreve.1;
+sub Gdotaccent by Gdotaccent.1;
+sub Gcommaaccent by Gcommaaccent.1;
+sub Gcaron by Gcaron.1;
+sub Gacute by Gacute.1;
+sub Gmacron by Gmacron.1;
diff --git a/src/features/ss01-alt-digits.fea b/src/features/ss01-alt-digits.fea
new file mode 100644
index 000000000..54cf36599
--- /dev/null
+++ b/src/features/ss01-alt-digits.fea
@@ -0,0 +1,21 @@
+featureNames { name "Alternate digits"; };
+sub one by one.ss01;
+sub one.tf by one.tf.ss01;
+sub one.squared by one.ss01.squared;
+sub one.circled by one.ss01.circled;
+sub three by three.1;
+sub three.tf by three.1.tf;
+sub three.squared by three.1.squared;
+sub three.circled by three.1.circled;
+sub four by four.ss01;
+sub four.tf by four.tf.ss01;
+sub four.squared by four.ss01.squared;
+sub four.circled by four.ss01.circled;
+sub six by six.ss01;
+sub six.tf by six.tf.ss01;
+sub six.squared by six.ss01.squared;
+sub six.circled by six.ss01.circled;
+sub nine by nine.ss01;
+sub nine.tf by nine.tf.ss01;
+sub nine.squared by nine.ss01.squared;
+sub nine.circled by nine.ss01.circled;
diff --git a/src/features/ss02-disambiguation.fea b/src/features/ss02-disambiguation.fea
new file mode 100644
index 000000000..86a554807
--- /dev/null
+++ b/src/features/ss02-disambiguation.fea
@@ -0,0 +1,51 @@
+featureNames { name "Disambiguation"; };
+sub l by l.ss02;
+sub lslash by lslash.ss02;
+sub lbar by lbar.ss02;
+sub lmidtilde by lmidtilde.ss02;
+sub lbelt by lbelt.ss02;
+sub ldot by ldot.ss02;
+sub lacute by lacute.ss02;
+sub lcommaaccent by lcommaaccent.ss02;
+sub lcaron by lcaron.ss02;
+sub ldotbelow by ldotbelow.ss02;
+sub ldotbelowmacron by ldotbelowmacron.ss02;
+sub llinebelow by llinebelow.ss02;
+sub lcircumflexbelow by lcircumflexbelow.ss02;
+sub zero by zero.slash;
+sub zero.tf by zero.tf.slash;
+sub zero.squared by zero.slash.squared;
+sub zero.circled by zero.slash.circled;
+sub germandbls by germandbls.1;
+sub I by I.1;
+sub Idieresis by Idieresis.1;
+sub Idieresisacute by Idieresisacute.1;
+sub Istroke by Istroke.1;
+sub Itildebelow by Itildebelow.1;
+sub Igrave by Igrave.1;
+sub Iacute by Iacute.1;
+sub Icircumflex by Icircumflex.1;
+sub Itilde by Itilde.1;
+sub Imacron by Imacron.1;
+sub Ibreve by Ibreve.1;
+sub Iogonek by Iogonek.1;
+sub Idotaccent by Idotaccent.1;
+sub Icaron by Icaron.1;
+sub Idblgrave by Idblgrave.1;
+sub Iinvertedbreve by Iinvertedbreve.1;
+sub Ihookabove by Ihookabove.1;
+sub Idotbelow by Idotbelow.1;
+sub uni1F38 by uni1F38.1;
+sub uni1F39 by uni1F39.1;
+sub uni1F3A by uni1F3A.1;
+sub uni1F3B by uni1F3B.1;
+sub uni1F3C by uni1F3C.1;
+sub uni1F3D by uni1F3D.1;
+sub uni1F3E by uni1F3E.1;
+sub uni1F3F by uni1F3F.1;
+sub uni1FD8 by uni1FD8.1;
+sub uni1FD9 by uni1FD9.1;
+sub uni1FDA by uni1FDA.1;
+sub uni1FDB by uni1FDB.1;
+sub afii10055 by afii10055.1;
+sub afii10056 by afii10056.1;
diff --git a/src/features/ss03-r-curve.fea b/src/features/ss03-r-curve.fea
new file mode 100644
index 000000000..fe42872dc
--- /dev/null
+++ b/src/features/ss03-r-curve.fea
@@ -0,0 +1,332 @@
+featureNames { name "Lower case r curves into round neighbors"; };
+# curved "r" when it meets a curved shape, e.g. "ro"
+@straight_r = [
+  r
+  rrthook
+  uni024D
+  rdescend
+  racute
+  rcommaaccent
+  rcaron
+  rdblgrave
+  rinvertedbreve
+  rdotaccent
+  rdotbelow
+  rdotbelowmacron
+  rlinebelow
+];
+@curved_r = [
+  r.1
+  rrthook.1
+  uni024D.1
+  rdescend.1
+  racute.1
+  rcommaaccent.1
+  rcaron.1
+  rdblgrave.1
+  rinvertedbreve.1
+  rdotaccent.1
+  rdotbelow.1
+  rdotbelowmacron.1
+  rlinebelow.1
+];
+
+# lower case-sized glyphs where the left side is curved, like "o"
+@lc_left_side_curved = [
+  a
+  adieresis
+  atilde
+  arighthalfring
+  agrave
+  aacute
+  acircumflex
+  aring
+  amacron
+  abreve
+  aogonek
+  acaron
+  adieresismacron
+  adotmacron
+  aringacute
+  adblgrave
+  ainvertedbreve
+  uni0227
+  aringbelow
+  adotbelow
+  ahookabove
+  acircumflexacute
+  acircumflexgrave
+  acircumflexhookabove
+  acircumflextilde
+  acircumflexdotbelow
+  abreveacute
+  abrevegrave
+  abrevehookabove
+  abrevetilde
+  abrevedotbelow
+  acyrillic
+  abrevecyrillic
+  adieresiscyrillic
+  ae
+  aemacron
+  aeacute
+  aiecyrillic
+  c
+  uni023C
+  chook
+  ccurl
+  ccedilla
+  cacute
+  ccircumflex
+  cdotaccent
+  ccaron
+  ccedillaacute
+  sigmalunatesymbolgreek
+  escyrillic
+  d
+  dcroat
+  drthook
+  dhook
+  dtopbar
+  uni0221
+  dcaron
+  ddotaccent
+  ddotbelow
+  dlinebelow
+  dcedilla
+  dcircumflexbelow
+  dz
+  dzcaron
+  dzcurl
+  dyogh
+  dong
+  e
+  edieresis
+  uni0247
+  egrave
+  eacute
+  ecircumflex
+  emacron
+  ebreve
+  edotaccent
+  eogonek
+  ecaron
+  edblgrave
+  einvertedbreve
+  uni0229
+  emacrongrave
+  emacronacute
+  ecircumflexbelow
+  etildebelow
+  ecedillabreve
+  edotbelow
+  ehookabove
+  etilde
+  ecircumflexacute
+  ecircumflexgrave
+  ecircumflexhookabove
+  ecircumflextilde
+  ecircumflexdotbelow
+  iecyrillic
+  uni0450
+  iocyrillic
+  iebrevecyrillic
+  eturn
+  g
+  ghook
+  gbar
+  gcircumflex
+  gbreve
+  gdotaccent
+  gcommaaccent
+  gcaron
+  gacute
+  gmacron
+  o
+  odieresis
+  otilde
+  oslash
+  ohorn
+  ograve
+  oacute
+  ocircumflex
+  omacron
+  obreve
+  ohungarumlaut
+  ocaron
+  oogonek
+  oogonekmacron
+  odblgrave
+  oinvertedbreve
+  uni022B
+  uni022D
+  uni022F
+  uni0231
+  otildeacute
+  otildedieresis
+  omacrongrave
+  omacronacute
+  odotbelow
+  ohookabove
+  ocircumflexacute
+  ocircumflexgrave
+  ocircumflexhookabove
+  ocircumflextilde
+  ocircumflexdotbelow
+  ohornacute
+  ohorngrave
+  ohornhookabove
+  ohorntilde
+  ohorndotbelow
+  oslashacute
+  omicron
+  omicrontonos
+  uni1F40
+  uni1F41
+  uni1F42
+  uni1F43
+  uni1F44
+  uni1F45
+  uni1F78
+  fitacyrillic
+  obar
+  ocyrillic
+  odieresiscyrillic
+  oe
+  ukcyrillic
+  q
+  qhook
+  qrthook
+  s
+  srthook
+  uni023F
+  sacute
+  scircumflex
+  scedilla
+  scaron
+  scommaaccent
+  sdotaccent
+  sdotbelow
+  sacutedotaccent
+  scarondotaccent
+  sdotbelowdotaccent
+  dzecyrillic
+  tonetwo
+  eth
+  alpha
+  alphatonos
+  uni1F00
+  uni1F01
+  uni1F02
+  uni1F03
+  uni1F04
+  uni1F05
+  uni1F06
+  uni1F07
+  uni1F70
+  uni1F80
+  uni1F81
+  uni1F82
+  uni1F83
+  uni1F84
+  uni1F85
+  uni1F86
+  uni1F87
+  uni1FB0
+  uni1FB1
+  uni1FB2
+  uni1FB3
+  uni1FB4
+  uni1FB6
+  uni1FB7
+  delta
+  epsilon
+  epsilontonos
+  epsilonclosed
+  epsilon1
+  epsilon1rev
+  epsilon1revclosed
+  epsilon1revhook
+  uni1F10
+  uni1F11
+  uni1F12
+  uni1F13
+  uni1F14
+  uni1F15
+  uni1F72
+  rho
+  uni1FE4
+  uni1FE5
+  uni03FC
+  sigma1
+  sigma
+  phi
+  phigreek
+  omega
+  omegatonos
+  uni1F60
+  uni1F61
+  uni1F62
+  uni1F63
+  uni1F64
+  uni1F65
+  uni1F66
+  uni1F67
+  uni1F7C
+  uni1FA0
+  uni1FA1
+  uni1FA2
+  uni1FA3
+  uni1FA4
+  uni1FA5
+  uni1FA6
+  uni1FA7
+  uni1FF2
+  uni1FF3
+  uni1FF4
+  uni1FF6
+  uni1FF7
+  zecyrillic
+  efcyrillic
+  ereversedcyrillic
+  iacyrillic
+  ecyrillic
+  haabkhasiancyrillic
+  cent
+  manat
+  six.ss01
+  ascript
+  ascript_uni02DE
+  erev
+  schwa
+  schwahook
+  oopen
+  uni0238
+  uni0239
+  uni2184
+  aogonek.NAV
+  eogonek.NAV
+  oogonek.NAV
+  zedescendercyrillic
+  esdescendercyrillic
+  schwacyrillic
+  schwadieresiscyrillic
+  zedieresiscyrillic
+  obarredcyrillic
+  obarreddieresiscyrillic
+  uni04ED
+  koppacyrillic
+  uni037B
+  uni037C
+  uni037D
+  uni03D9
+  stigma
+  rho1
+  uni1F71
+  uni1F73
+  uni1F79
+  uni217D
+  uni217E
+];
+
+sub @straight_r' @lc_left_side_curved by @curved_r;
diff --git a/src/features/subs.fea b/src/features/subs.fea
new file mode 100644
index 000000000..7bba3e434
--- /dev/null
+++ b/src/features/subs.fea
@@ -0,0 +1,43 @@
+sub a by a.subs;
+sub b by b.subs;
+sub c by c.subs;
+sub d by d.subs;
+sub e by e.subs;
+sub f by f.subs;
+sub g by g.subs;
+sub h by h.subs;
+sub i by i.subs;
+sub j by j.subs;
+sub k by k.subs;
+sub [l l.ss02] by l.subs;
+sub m by m.subs;
+sub n by n.subs;
+sub o by o.subs;
+sub p by p.subs;
+sub q by q.subs;
+sub [r r.1] by r.subs;
+sub s by s.subs;
+sub t by t.subs;
+sub u by u.subs;
+sub v by v.subs;
+sub w by w.subs;
+sub x by x.subs;
+sub y by y.subs;
+sub z by z.subs;
+sub [zero zero.slash zero.tf zero.tf.slash] by zero.subs;
+sub [one one.ss01 one.tf one.tf.ss01] by one.subs;
+sub [two two.tf] by two.subs;
+sub [three three.1 three.tf three.1.tf] by three.subs;
+sub [four four.ss01 four.tf four.tf.ss01] by four.subs;
+sub [five five.tf] by five.subs;
+sub [six six.ss01 six.tf six.tf.ss01] by six.subs;
+sub [seven seven.tf] by seven.subs;
+sub [eight eight.tf] by eight.subs;
+sub [nine nine.ss01 nine.tf nine.tf.ss01] by nine.subs;
+sub [parenleft parenleft.case] by parenleft.subs;
+sub [parenright parenright.case] by parenright.subs;
+sub [bracketleft bracketleft.case] by bracketleft.subs;
+sub [bracketright bracketright.case] by bracketright.subs;
+sub [plus plus.case] by plus.subs;
+sub [minus minus.case hyphen hyphen.case] by minus.subs;
+sub [equal equal.case] by equal.subs;
diff --git a/src/features/sups.fea b/src/features/sups.fea
new file mode 100644
index 000000000..3396dba1b
--- /dev/null
+++ b/src/features/sups.fea
@@ -0,0 +1,43 @@
+sub a by a.sups;
+sub b by b.sups;
+sub c by c.sups;
+sub d by d.sups;
+sub e by e.sups;
+sub f by f.sups;
+sub g by g.sups;
+sub h by h.sups;
+sub i by i.sups;
+sub j by j.sups;
+sub k by k.sups;
+sub [l l.ss02] by l.sups;
+sub m by m.sups;
+sub n by n.sups;
+sub o by o.sups;
+sub p by p.sups;
+sub q by q.sups;
+sub [r r.1] by r.sups;
+sub s by s.sups;
+sub t by t.sups;
+sub u by u.sups;
+sub v by v.sups;
+sub w by w.sups;
+sub x by x.sups;
+sub y by y.sups;
+sub z by z.sups;
+sub [zero zero.slash zero.tf zero.tf.slash] by zero.sups;
+sub [one one.ss01 one.tf one.tf.ss01] by one.sups;
+sub [two two.tf] by two.sups;
+sub [three three.1 three.tf three.1.tf] by three.sups;
+sub [four four.ss01 four.tf four.tf.ss01] by four.sups;
+sub [five five.tf] by five.sups;
+sub [six six.ss01 six.tf six.tf.ss01] by six.sups;
+sub [seven seven.tf] by seven.sups;
+sub [eight eight.tf] by eight.sups;
+sub [nine nine.ss01 nine.tf nine.tf.ss01] by nine.sups;
+sub [parenleft parenleft.case] by parenleft.sups;
+sub [parenright parenright.case] by parenright.sups;
+sub [bracketleft bracketleft.case] by bracketleft.sups;
+sub [bracketright bracketright.case] by bracketright.sups;
+sub [plus plus.case] by plus.sups;
+sub [minus minus.case hyphen hyphen.case] by minus.sups;
+sub [equal equal.case] by equal.sups;
diff --git a/src/features/zero.fea b/src/features/zero.fea
new file mode 100644
index 000000000..d06339d71
--- /dev/null
+++ b/src/features/zero.fea
@@ -0,0 +1,4 @@
+sub zero by zero.slash;
+sub zero.tf by zero.tf.slash;
+sub zero.circled by zero.slash.circled;
+sub zero.squared by zero.slash.squared;