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- Usage of GNU FreeFont
-
- Language scripts and faces
- ==========================
-
- There are three faces (serif, sans-serif, and monospace), and four styles
- (regular, bold, cursive/italic, and bold cursive/italic) for each face.
- There is one font file per face/style combination: 12 files in total.
-
- The letters for various languages, as well as specialized symbols, exist
- among the various font files, but they are not uniformly populated.
- All the fonts have complete support for Latin, Cyrillic, and Greek, as
- well as most of the extensions for those scripts.
-
- At this time, serif regular has by far the largest number of letters, and
- supports the largest number of writing scripts. However there are writing
- scripts supported by the sans-serif but not by serif.
-
- For an overview of which scripts and sets of symbols are supported by
- which face, see the FreeFont 'coverage' web page.
-
- Font features
- =============
-
- FreeFont has numerous font "features" that perform alterations to the basic
- letters of the font, replacing them with other letters, or positioning them
- with respect to other letters.
-
- Many features are activated automatically, but in some environments, they
- present some user control. This documents those features with user control.
-
- Language-specific features
- ==========================
-
- Some OpenType font features are activated only when the text is specified to
- be of a certain language.
-
- This is done in HTML by enclosing the text with a tag whose 'lang' attribute
- is set to the appropriate ISO 632.2 language code. In a word processor,
- any block of text can be given a language setting.
-
- Latin
- -----
- Catalan ligature improving l·l
- Dutch ligatures for ij, IJ
- Sami localized form for letter Eng
- Turkish overrides ligatures fi ffi of Latin
-
- Cyrillic
- --------
- Ukrainian ligature for double i-diaresis
- Serbian/Macedonian localized letters be, and more in italic
- Bulgarian style set for modern glyphs
-
- Hebrew
- ------
- Yiddish raised vowels under yo
-
- Devanagari
- ----------
- Sanskrit much larger set of ligatures
-
- Hindi, Marathi better spacing of Western punctuation marks
-
- Indic languages
- ---------------
-
- The 'danda' character is encoded in Unicode only in the Devanagari range.
- When writing in scripts of other Indic languages, this same character is to
- be used. But the shapes and line thicknesses of glyphs vary slightly from
- one script to another, so the same glyph for 'danda' may not fit all scripts.
-
- By specifying the language of the text, an appropriate glyph for 'danda'
- will be obtained.
-
- Style sets
- ==========
-
- These replacements are activated by specifying a "Style Set".
- These features are accessible only from typesetting software.
-
- Cyrillic Bulgarian modern (ss01)
-
- Devanagari Bombay (ss02), Calcutta (ss03), Nepali (ss04)
-
- Discretionary features
- ======================
- These features are accessible only from typesetting software.
- Typically the user must specifically request them.
-
- Unless otherwise noted, these are available only in FreeSerif.
-
- Ligatures and substitutions
- ---------------------------
-
- Arabic, Armenian, Hebrew, German, Dutch
-
- Small captials
- --------------
-
- A limited set of specially drawn small capital letters in Latin.
-
- Superscript and subscript
- -------------------------
-
- Transform a limited set of characters--mostly Latin letters and numerals--
- to versions well-sized and positioned as superscript or subscript.
-
- Numeral styles
- --------------
-
- The default numerals of FreeSerif are mono-spaced and of even height.
- It also features proportionally-spaced numerals, and "old-style" numerals--
- those which vary in height and sometimes go beneath the baseline.
- These can be had at discretion.
-
- Diagonal fractions
- ------------------
-
- A limited set of diagonal fraction substitutions are available at discretion.
- The set is more than what is encoded in Unicode.
- They work with the ASCII slash or the mathematical slash U+2215.
- The transform a sequence "number-slash-number" to a diagonal form.
-
- Zero
- ----
-
- A slashed form of the numeral zero is available at discretion.
- Available in all faces.
-
- Alternative characters
- ======================
-
- FreeSerif has some listings of alternatives for specific characters.
- Again this is use primarily in specialized typesetting software.
-
- Greek, Latin
-
- Use in LaTeX
- ============
- It is possible to use Unicode fonts in recent LaTeX implementations, but in
- LuaTeX http://www.luatex.org/ and
- XeTeX http://tug.org/xetex/
- it is particularly easy to use Unicode text, and to enable font features.
- Recent versions of these systems use the 'fontspec' package to choose fonts
- and features.
-
- A very simple document might contain the lines
- ---------------------------------------------------------------------------
- \documentclass{ltxdockit}
- \usepackage{fontspec}
- \usepackage{xunicode}
- \setmainfont[]{FreeSerif}
- \begin{document}
- {\fontspec[Script=Default,Fractions={On}]{FreeSerif}
- 1/7 3/10 7/10}
-
- x\raisebox{-0.5ex}{{\scriptsize ai}}
- x{\fontspec[Script=Default,VerticalPosition={Inferior}]{FreeSerif}
- abcdefghijklmnopqrstuvwxyz+−(0123456789)} \\
- x\raisebox{0.85ex}{{\scriptsize ai}}
- x{\fontspec[Script=Default,VerticalPosition={Superior}]{FreeSerif}
- abcdefghijklmnopqrstuvwxyz+−(0123456789)}
-
- {\fontspec[Script=Latin]{FreeSerif}
- \textsc{Small Caps} }
-
- { Bсички хора се раждат свободни и равни по достойнство и права.
- \fontspec[Script=Cyrillic,Language=Bulgarian,Variant={1}]{FreeSerif} \selectfont
- Bсички хора се раждат свободни и равни по достойнство и права. }
-
- \end{document}
- ---------------------------------------------------------------------------
- Here are some 'fontspec' setting-value pairs meaningful for FreeFont.
-
- Numbers: Lining OldStyle Proportional SlashedZero
- Fractions: On
- VerticalPosition: Superior Inferior
- Ligatures: Common Historical
- Letters: UppercaseSmallCaps
- Variant: 1 (etc. -- must be in {} picks style set.)
- ---------------------------------------------------------------------------
-
-
- $Id: usage.txt,v 1.10 2011-07-16 08:38:06 Stevan_White Exp $
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