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Kitab

Kitab, based on Scheherazade, is an Arabic font with a design based on traditional typefaces such as Monotype Naskh, extended to cover the full Unicode Arabic repertoire.

It is also designed to support rendering Quranic text in a Unicode-compliant manner.

Changes

  • Increased the base font size.
  • Decreased the base line height.
  • Added the Basmalah (U+FDFD), ﷺ, and ﷻ characters from Amiri.
  • Replaced the angle quotes and ayah quotes with Amiri's (i.e., «» and ﴿﴾).
  • Replaced U+06E0 (small high upright rectangular zero) with Amiri's.
  • Added laam hamzah alif ligature (i.e., لا but with a hamzah in the middle). This is needed for Quranic orthography (e.g. الـٔاخرة). Currently there is no pure Unicode solution for this
  • The width of ۩ (U+06E9) was increased.
  • A slight curve was added to U+0670 (Small alif).
  • Numerous collision fixes.

The follow glyphs were enlarged:

  • U+06E4 (Small high maddah)
  • U+06DB (Small high 3 dots)
  • U+06D8 (Small high meem initial form)
  • U+06E5 (Small waaw)

The following glyphs were made to be lower on "the line" when in a word.

  • U+0654 (Hamzah above) (أَنۢبِـُٔونِی)
  • U+06E7 (Small high yaa) (ٱلنَّبِیِّـۧنَ)
  • U+06E4 (madd) when on top of U+06E6 (small yaa) (یَسۡتَحۡیِۦۤ)

The following honorifics were added (note: these honorifics are set to be included in Unicode 14)

  • U+FDFE (سبحانه وتعالى)
  • U+FDFF (عز وجل)
  • U+FD40 (رحمه الله)
  • U+FD41 (رضي الله عنه)
  • U+FD42 (رضي الله عنها)
  • U+FD43 (رضي الله عنهم)
  • U+FD44 (رضي الله عنهما)
  • U+FD45 (رضي الله عنهن)
  • U+FD47 (عليه السلام)
  • U+FD4D (عليها السلام)
  • U+FD48 (عليهم السلام)
  • U+FD49 (عليهما السلام)

Subsetting and compressing

  • ./subset.mjs (requires pyftsubset and zx) -- it will output build/{kitab-base,kitab-base-bold,kitab-phrases}.{woff,woff2}

CSS

@font-face {
  font-family: Kitab;
  src: url(/assets/kitab-base.woff2);
  unicode-range: U+200?, U+60C, U+618-61B, U+61F, U+621-63A, U+640-655, U+65C, U+660-66C, U+670-671, U+6CC, U+6D4, U+6D6-6DD, U+6DF-6E8, U+6EA-6ED, U+8F0-8F3, U+FD3E-FD3F, U+FDF2;
}
@font-face {
  font-family: Kitab;
  src: url(/assets/kitab-base-bold.woff2);
  font-weight: 700;
  unicode-range: U+200?, U+60C, U+618-61B, U+61F, U+621-63A, U+640-655, U+65C, U+660-66C, U+670-671, U+6CC, U+6D4, U+6D6-6DD, U+6DF-6E8, U+6EA-6ED, U+8F0-8F3, U+FD3E-FD3F, U+FDF2;
}
@font-face {
  font-family: Kitab;
  src: url(/assets/kitab-phrases.woff2);
  unicode-range: U+6DE, U+6E9, U+E100-E103, U+FD3E-FD45, U+FD47-FD4F, U+FDFA-FDFB, U+FDFD-FDFF;
}
@font-face {
  font-family: Kitab;
  src: url(/assets/kitab-phrases.woff2);
  font-weight: 700;
  unicode-range: U+6DE, U+6E9, U+E100-E103, U+FD3E-FD45, U+FD47-FD4F, U+FDFA-FDFB, U+FDFD-FDFF;
}

unicode-range

The following code can create a valid CSS unicode-range from a set of characters.

import itertools

def ranges(i):
    for a, b in itertools.groupby(enumerate(i), lambda pair: pair[1] - pair[0]):
        b = list(b)
        yield b[0][1], b[-1][1]

def unicode_range(chars):
    ints = sorted([ord(c) for c in set(chars)])
    groups = list(ranges(ints))
    groups1 = [(hex(a), hex(b)) for a, b in groups]
    groups2 = [(f'{a}-{b}' if a != b else a) for a, b in groups1]
    return ', '.join(groups2).replace('-0x', '-').replace('0x', 'U+').upper()

License

This font software is free to use, modify, and redistribute according to the terms of the SIL Open Font License.