Lateef provides alternate glyphs for a number of characters. These are implemented in 3 different ways (OpenType, Graphite and TypeTuner Web) for support in different applications and rendering systems. Ideally the selection of these font features is done in application programs, but many applications do not yet support this functionality. In response to this lack of support for features, a program called TypeTuner (command line version: TypeTuner and web-based version: TypeTuner Web) allows users to create derivative fonts with their own feature settings based on the needs of a local project or region.

  • The LateefGR font (most current version) only supports Graphite.
  • The Lateef font (v1.001) only supports OpenType

User-selectable font features

The features in LateefGR are documented here.

  • The LateefGR font (most current version) only supports Graphite.
  • The Lateef font (v1.001) only supports OpenType

End of Ayah (U+06DD) and subtending marks (U+0600..U+0605)

These Arabic characters are intended to enclose or hold one or more digits.

Specific technical details of how to use them are discussed in the Arabic fonts FAQ — Subtending marks.

Customizing with TypeTuner

For applications that do not make use of the OpenType Character Variants, you can now download fonts customized with the variant glyphs you choose. Read this document, visit TypeTuner Web, then choose the variants and download your font.

Language

Affects: U+062F, U+0630, U+0688..U+068F, U+0690, U+06EE, U+0759, U+075A, U+08AE, U+0645, U+0765, U+0766, U+08A7, U+0647, U+0626, U+060C, U+061B, U+06F4, U+06F5, U+06F6, U+06F7, U+0650, U+064F, U+064C, U+0657

Unfortunately, the UI needed to access the language-specific behavior is not yet present in many applications. LibreOffice and Microsoft Word 2016 support language-specific behavior for Kurdish, Sindhi and Urdu (but not Kyrgyz or Rohingya). Some Harfbuzz-based apps, e.g., XeTeX, can access language-specific behavior.

Language Meem Heh Comma 4 6 7 0650/064E Feature setting
default م ممم ه ههه ، ؛ ۴ ۶ ۷ بِّ
Kurdish
(Northern)
م ممم ه ههه ، ؛ ۴ ۶ ۷ بِّ lang=ku
Sindhi م ممم ه ههه ، ؛ ۴ ۶ ۷ بِّ lang=sd
Urdu م ممم ه ههه ، ؛ ۴ ۶ ۷ بِّ lang=ur

Character variants

There are some character shape differences in different languages which use the Arabic script. These can be accessed by using Graphite features or through the language support mentioned above.

Meem

Affects: U+0645, U+0765, U+0766

Feature Sample Feature setting
Standard م ممم ݥ ݥݥݥ ݦ ݦݦݦ cv44=0
Sindhi-style م ممم ݥ ݥݥݥ ݦ ݦݦݦ cv44=1

Heh

Affects: U+0647

Feature Sample Feature setting
Standard ه ههه cv48=0
Kurdish-style ه ههه cv48=3
Sindhi-style ه ههه cv48=1
Urdu-style ه ههه cv48=2

Arabic U

Affects: U+0677, U+06C7

Feature Sample Feature setting
Standard ٷ ۇ cv50=0
Filled ٷ ۇ cv50=1

Shadda+kasra placement

Affects: U+064D, U+0650 with U+0651

Feature Sample Feature setting
Raised بِّ ◌ِّ بٍّ ◌ٍّ cv62=0
Lowered بِّ ◌ِّ بٍّ ◌ٍّ cv62=1

Damma

Affects: U+064F

Feature Sample Feature setting
Standard بُ ◌ُ cv70=0
Filled بُ ◌ُ cv70=1

Dammatan

Affects: U+064C

Feature Sample Feature setting
Standard بٌ ◌ٌ cv72=0
Six-nine بٌ ◌ٌ cv72=1

Superscript Alef

U+0670 on all yeh, sad and seen-like characters
U+0649 U+064A U+06D0 U+06D1 U+06CC U+0635 U+0636 U+069D U+069E U+06FB U+08AF U+0633 U+0634 U+069A U+069B U+069C U+06FA U+075C U+076D U+0770

Feature Sample Feature setting
Small ئٰ ئٰئٰئٰ ىٰ ىٰىٰىٰ يٰ يٰيٰيٰ ٸٰ ٸٰٸٰٸٰ ېٰ ېٰېٰېٰ ۑٰ ۑٰۑٰۑٰ ؽٰ ؽٰؽٰؽٰ یٰ یٰیٰیٰ ێٰ ێٰێٰێٰ صٰ صٰصٰصٰ ضٰ ضٰضٰضٰ ڝٰ ڝٰڝٰڝٰ ڞٰ ڞٰڞٰڞٰ ۻٰ ۻٰۻٰۻٰ سٰ سٰسٰسٰ شٰ شٰشٰشٰ ښٰ ښٰښٰښٰ ڛٰ ڛٰڛٰڛٰ ڜٰ ڜٰڜٰڜٰ ۺٰ ۺٰۺٰۺٰ ݜٰ ݜٰݜٰݜٰ ݭٰ ݭٰݭٰݭٰ ݰٰ ݰٰݰٰݰٰ cv76=0
Large ئٰ ئٰئٰئٰ ىٰ ىٰىٰىٰ يٰ يٰيٰيٰ ٸٰ ٸٰٸٰٸٰ ېٰ ېٰېٰېٰ ۑٰ ۑٰۑٰۑٰ ؽٰ ؽٰؽٰؽٰ یٰ یٰیٰیٰ ێٰ ێٰێٰێٰ صٰ صٰصٰصٰ ضٰ ضٰضٰضٰ ڝٰ ڝٰڝٰڝٰ ڞٰ ڞٰڞٰڞٰ ۻٰ ۻٰۻٰۻٰ سٰ سٰسٰسٰ شٰ شٰشٰشٰ ښٰ ښٰښٰښٰ ڛٰ ڛٰڛٰڛٰ ڜٰ ڜٰڜٰڜٰ ۺٰ ۺٰۺٰۺٰ ݜٰ ݜٰݜٰݜٰ ݭٰ ݭٰݭٰݭٰ ݰٰ ݰٰݰٰݰٰ cv76=1

Sukun

Affects: U+0652

Feature Sample Feature setting
Closed بْ ◌ْ cv78=0
Open down بْ ◌ْ cv78=1
Open left بْ ◌ْ cv78=2

End of ayah

Affects: U+06DD

Firefox allows you to use U+06DD followed by the digits and proper rendering occurs. Some applications require the following:

  • precede the entire sequence (subtending mark plus following digits) with
    202D LEFT-TO-RIGHT OVERRIDE
  • follow the entire sequence with U+202C POP DIRECTIONAL FORMATTING.

Surrounding the sequence with U+202D and U+202C seems to give the most reliable results in different browsers. However, we have not found a solution that works in Internet Explorer/Edge.

In the example below, the following codepoints are used: U+202D U+06DD U+0031 U+0032 U+0033 U+202C U+202D U+06DD U+0611 U+0622 U+0663 U+202C.

Feature Sample Feature setting
Standard ‭۝123‬ ‭۝١٢٣‬ cv80=0
Simplified A ‭۝123‬ ‭۝١٢٣‬ cv80=1
Simplified B ‭۝123‬ ‭۝١٢٣‬ cv80=2

Eastern digits

Affects: U+06F4, U+06F6, U+06F7

Feature Sample Feature setting
Standard ۴۶۷ cv82=0
Sindhi-style ۴۶۷ cv82=1
Urdu-style ۴۶۷ cv82=2

Comma

Affects: U+060C, U+061B

Feature Sample Feature setting
Upward ، ؛ cv84=0
Downward ، ؛ cv84=1

Line spacing

Allows for adjustment of the default line spacing in the font (values shown are ordered in increasing line spacing). This feature is only available with TypeTuner.

Feature
Tight
Normal
Loose