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OpenType
Overview
GSUB
aalt — Access All Alternates
c2pc — Petite Capitals From Capitals
c2sc — Small Capitals From Capitals
calt — Contextual Alternates
case — Case-Sensitive Forms
ccmp — Glyph Composition/Decomposition
clig — Contextual Ligatures
dlig — Discretionary Ligatures
dnom — Denominators
frac — Fractions
hist — Historical Forms
hlig — Historical Ligatures
liga — Standard Ligatures
lnum — Lining Figures
locl — Localized Forms
mgrk — Mathematical Greek
numr — Numerators
onum — Oldstyle Figures
ordn — Ordinals
pcap — Petite Capitals
pnum — Proportional Figures
rlig — Required Ligatures
salt — Stylistic Alternates
sinf — Scientific Inferiors
smcp — Small Capitals
ss01–ss20 — Stylistic Sets
subs — Subscript
sups — Superscript
swsh — Swash
titl — Titling
tnum — Tabular Figures
zero — Slashed Zero
Feature File
Overview
GSUB Rules
Lookup Type 1 — Single Substitution
Lookup Type 2 — Multiple Substitution
Lookup Type 3 — Alternate Substitution
Lookup Type 4 — Ligature Substitution
Lookup Type 6 — Chaining Contextual Substitution
Glossary
Glossary
Drafts
Ligatures commonly found in dlig
Ligatures commonly found in liga
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Feature File
Reference for OpenType Feature File (
.fea
) syntax: how to write it. Content coming soon.