Doulos SIL - Font Features
Doulos SIL is an OpenType-enabled font that supports the Latin and Cyrillic scripts. It includes a number of optional features that may be useful or required for particular uses or languages. This document lists all the available features.
These OpenType features are primarily specified using four-letter tags (e.g. 'cv17'), although some applications may provide a direct way to control certain common features such as small caps. For more information on how to access OpenType features in specific environments and applications, see Using Font Features.
Please note that Graphite support has been removed in the current release, but continues to be available in the version 5 fonts. See our Previous Versions archive.
This page uses web fonts (WOFF2) to demonstrate font features and should display correctly in all modern browsers. For a more concise example of how to use Doulos SIL as a web font see Doulos SIL Webfont Example. For detailed information see Using SIL Fonts on Web Pages.
If this document is not displaying correctly a PDF version is also provided in the documentation/pdf folder of the release package.
Complete feature list
Stylistic alternates
Small caps from lowercase
Affects: all lowercase letters with capital equivalents
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | a ... z (all letters with capital equivalents) | smcp=0 |
| Small caps | a ... z (all letters with capital equivalents) | smcp=1 |
Small caps from capitals
Affects: all capitals
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | A ... Z (all capitals) | c2sc=0 |
| Small caps | A ... Z (all capitals) | c2sc=1 |
Literacy a and g
Affects: U+0061 U+00E0 U+00E1 U+00E2 U+00E3 U+00E4 U+00E5 U+0101 U+0103 U+0105 U+01CE U+01DF U+01E1 U+01FB U+0201 U+0203 U+0227 U+1E01 U+1E9A U+1EA1 U+1EA3 U+1EA5 U+1EA7 U+1EA9 U+1EAB U+1EAD U+1EAF U+1EB1 U+1EB3 U+1EB5 U+1EB7 U+2C65 U+2090 U+1D43 U+0363 U+0067 U+011D U+011F U+0121 U+0123 U+01E7 U+01F5 U+01E5 U+1E21 U+A7A1 U+1D4D
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | a à á â ã ä å ā ă ą ǎ ǟ ǡ ǻ ȁ ȃ ȧ ḁ ẚ ạ ả ấ ầ ẩ ẫ ậ ắ ằ ẳ ẵ ặ ⱥ ₐ ᵃ ◌ͣ g ĝ ğ ġ ģ ǧ ǵ ǥ ḡ ꞡ ᵍ | ss01=0 |
| Single-story | a à á â ã ä å ā ă ą ǎ ǟ ǡ ǻ ȁ ȃ ȧ ḁ ẚ ạ ả ấ ầ ẩ ẫ ậ ắ ằ ẳ ẵ ặ ⱥ ₐ ᵃ ◌ͣ g ĝ ğ ġ ģ ǧ ǵ ǥ ḡ ꞡ ᵍ | ss01=1 |
Literacy a (only)
Affects: U+0061 U+00E0 U+00E1 U+00E2 U+00E3 U+00E4 U+00E5 U+0101 U+0103 U+0105 U+01CE U+01DF U+01E1 U+01FB U+0201 U+0203 U+0227 U+1E01 U+1E9A U+1EA1 U+1EA3 U+1EA5 U+1EA7 U+1EA9 U+1EAB U+1EAD U+1EAF U+1EB1 U+1EB3 U+1EB5 U+1EB7 U+2C65 U+2090 U+1D43 U+0363
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | a à á â ã ä å ā ă ą ǎ ǟ ǡ ǻ ȁ ȃ ȧ ḁ ẚ ạ ả ấ ầ ẩ ẫ ậ ắ ằ ẳ ẵ ặ ⱥ ₐ ᵃ ◌ͣ | ss11=0 |
| Single-story | a à á â ã ä å ā ă ą ǎ ǟ ǡ ǻ ȁ ȃ ȧ ḁ ẚ ạ ả ấ ầ ẩ ẫ ậ ắ ằ ẳ ẵ ặ ⱥ ₐ ᵃ ◌ͣ | ss11=1 |
Literacy g (only)
Affects: U+0067 U+011D U+011F U+0121 U+0123 U+01E7 U+01F5 U+01E5 U+1E21 U+A7A1 U+1D4D
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | g ĝ ğ ġ ģ ǧ ǵ ǥ ḡ ꞡ ᵍ | ss12=0 |
| Single-story | g ĝ ğ ġ ģ ǧ ǵ ǥ ḡ ꞡ ᵍ | ss12=1 |
Barred-bowl forms
Affects: U+0111 U+0180 U+01E5
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | đ ƀ ǥ | ss04=0 |
| Barred-bowl | đ ƀ ǥ | ss04=1 |
Character alternates
B hook
Affects: U+0181
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ɓ | cv13=0 |
| Lowercase-style | Ɓ | cv13=1 |
D hook
Affects: U+018A
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ɗ | cv17=0 |
| Lowercase-style | Ɗ | cv17=1 |
H stroke
Affects: U+0126
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ħ | cv28=0 |
| Vertical stroke | Ħ | cv28=1 |
J stroke hook
Affects: U+0284
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ʄ | cv37=0 |
| Top serif | ʄ | cv37=1 |
Eng
Affects: U+014A
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ŋ | cv43=0 |
| Lowercase style on baseline | Ŋ | cv43=1 |
| Uppercase style with descender | Ŋ | cv43=2 |
| Alt. lowercase style on baseline | Ŋ | cv43=3 |
N left hook
Affects: U+019D
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ɲ | cv44=0 |
| Lowercase-style | Ɲ | cv44=1 |
Open-O
Affects: U+0186 U+0254 U+1D10 U+1D53 U+1D97
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ɔ ɔ ᴐ ᵓ ᶗ | cv46=0 |
| Top serif | Ɔ ɔ ᴐ ᵓ ᶗ | cv46=1 |
OU
Affects: U+0222 U+0223 U+1D3D U+1D15
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ȣ ȣ ᴕ ᴽ | cv47=0 |
| Open | Ȣ ȣ ᴕ ᴽ | cv47=1 |
p hook
Affects: U+01A5
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ƥ | cv49=0 |
| Right hook | ƥ | cv49=1 |
R tail
Affects: U+2C64
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ɽ | cv55=0 |
| Lowercase-style | Ɽ | cv55=1 |
T hook
Affects: U+01AC
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ƭ | cv57=0 |
| Right hook | Ƭ | cv57=1 |
V hook
Affects: U+01B2 U+028B U+1DB9
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ʋ ʋ ᶹ | cv62=0 |
| Straight with low hook | Ʋ ʋ ᶹ | cv62=1 |
| Straight with high hook | Ʋ ʋ ᶹ | cv62=2 |
Y hook
Affects: U+01B3
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ƴ | cv68=0 |
| Left hook | Ƴ | cv68=1 |
Ezh
Affects: U+01B7 U+04E0
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ʒ Ӡ | cv20=0 |
| Reversed sigma | Ʒ Ӡ | cv20=1 |
ezh curl
Affects: U+0293
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ʓ | cv19=0 |
| Large bowl | ʓ | cv19=1 |
rams horn
Affects: U+0264
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ɤ | cv25=0 |
| Large bowl | ɤ | cv25=1 |
| Small gamma | ɤ | cv25=2 |
Diacritic and symbol alternates
Vietnamese-style diacritics
Affects: U+1EA4 U+1EA5 U+1EA6 U+1EA7 U+1EA8 U+1EA9 U+1EAA U+1EAB U+1EAE U+1EAF U+1EB0 U+1EB1 U+1EB2 U+1EB3 U+1EB4 U+1EB5 U+1EBE U+1EBF U+1EC0 U+1EC1 U+1EC2 U+1EC3 U+1EC4 U+1EC5 U+1ED0 U+1ED1 U+1ED2 U+1ED3 U+1ED4 U+1ED5 U+1ED6 U+1ED7
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Ấấ Ầầ Ẩẩ Ẫẫ Ắắ Ằằ Ẳẳ Ẵẵ Ếế Ềề Ểể Ễễ Ốố Ồồ Ổổ Ỗỗ | cv75=0 |
| Vietnamese-style | Ấấ Ầầ Ẩẩ Ẫẫ Ắắ Ằằ Ẳẳ Ẵẵ Ếế Ềề Ểể Ễễ Ốố Ồồ Ổổ Ỗỗ | cv75=1 |
Kayan diacritics
Affects: U+0300 U+0301
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ◌̀́ | cv79=0 |
| Side by side | ◌̀́ | cv79=1 |
Ogonek
Affects: U+0328 U+0104 U+0105 U+0118 U+0119 U+012E U+012F U+0172 U+0173 U+01EA U+01EB U+01EC U+01ED
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | anything with ◌̨ (Ąą Ęę Įį Ųų Ǫǫ Ǭǭ) | cv76=0 |
| Straight | anything with ◌̨ (Ąą Ęę Įį Ųų Ǫǫ Ǭǭ) | cv76=1 |
Caron
Affects: U+010F U+013D U+013E U+0165
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ď Ľ ľ ť | cv77=0 |
| Global-style | ď Ľ ľ ť | cv77=1 |
Modifier apostrophe
Affects: U+02BC U+A78B U+A78C
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ʼ Ꞌ ꞌ | cv70=0 |
| Large | ʼ Ꞌ ꞌ | cv70=1 |
Modifier colon
Affects: U+A789
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ꞉ | cv71=0 |
| Expanded | ꞉ | cv71=1 |
Empty set
Affects: U+2205
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ∅ | cv98=0 |
| Zero-style | ∅ | cv98=1 |
Cyrillic alternates
There are also Cyrillic characters affected by the “Ezh” and “Small capitals” features. Some languages may also use the “Modifier apostrophe”.
Cyrillic E
Affects: U+042D U+044D
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | Э э | cv80=0 |
| Mongolian-style | Э э | cv80=1 |
Cyrillic shha
Affects: U+04BB
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | һ | cv81=0 |
| Uppercase-style | һ | cv81=1 |
Cyrillic breve
Affects: U+0306
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | anything with ◌̆ (Ә̆ә̆) | cv82=0 |
| Cyrillic-style | anything with ◌̆ (Ә̆ә̆) | cv82=1 |
Serbian Cyrillic alternates
Unlike other features this is activated by tagging the span of text as being in the Serbian language, not by turning on an OpenType feature.
Affects: U+0431
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | б | |
| Serbian | б | lang='sr' |
Tone alternates
Chinantec tones
Affects: U+02CB U+02C8 U+02C9 U+02CA
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ˋ ˈ ˉ ˊ | cv90=0 |
| Chinantec-style | ˋ ˈ ˉ ˊ | cv90=1 |
Tone numbers
Affects: U+02E5 U+02E6 U+02E7 U+02E8 U+02E9 U+A712 U+A713 U+A714 U+A715 U+A716
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ˥ ˦ ˧ ˨ ˩ ꜒ ꜓ ꜔ ꜕ ꜖ | cv91=0 |
| Numbers | ˥ ˦ ˧ ˨ ˩ ꜒ ꜓ ꜔ ꜕ ꜖ | cv91=1 |
Hide tone contour staves
Affects: U+02E5 U+02E6 U+02E7 U+02E8 U+02E9 U+A712 U+A713 U+A714 U+A715 U+A716
| Feature | Sample | Feature setting |
|---|---|---|
| Standard | ˥ ˦ ˧ ˨ ˩ ꜒ ꜓ ꜔ ꜕ ꜖ (˩˦˥˧˨ ꜖꜓꜒꜔꜕) | cv92=0 |
| Hide staves | ˥ ˦ ˧ ˨ ˩ ꜒ ꜓ ꜔ ꜕ ꜖ (˩˦˥˧˨ ꜖꜓꜒꜔꜕) | cv92=1 |