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author | Karl Berry <karl@freefriends.org> | 2005-12-29 00:31:48 +0000 |
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committer | Karl Berry <karl@freefriends.org> | 2005-12-29 00:31:48 +0000 |
commit | a9d59a2d83b345581f2eb0c6b7f08c091f5622f0 (patch) | |
tree | 00fba7fbf3f00c16be8699398c6e4c2a256c68ac /Master/texmf-doc/doc/english/FAQ-en/html/FAQ-ECfonts.html | |
parent | 89caab08d62b22519b44acf582a5fc3d302cbd60 (diff) |
doc/english/F-ca
git-svn-id: svn://tug.org/texlive/trunk@19 c570f23f-e606-0410-a88d-b1316a301751
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diff --git a/Master/texmf-doc/doc/english/FAQ-en/html/FAQ-ECfonts.html b/Master/texmf-doc/doc/english/FAQ-en/html/FAQ-ECfonts.html new file mode 100644 index 00000000000..b96ea44a6cc --- /dev/null +++ b/Master/texmf-doc/doc/english/FAQ-en/html/FAQ-ECfonts.html @@ -0,0 +1,66 @@ +<head> +<title>UK TeX FAQ -- question label ECfonts</title> +</head><body> +<h3>What are the EC fonts?</h3> +<p>A font consists of a number of <em>glyphs</em>. In order that the +glyphs may be printed, they are +<a href="FAQ-whatenc.html"><em>encoded</em></a>, and the +encoding is used as an index into tables within the font. For +various reasons, Knuth chose deeply eccentric encodings for his +Computer Modern family of fonts; in +particular, he chose different encodings for different fonts, so that +the application using the fonts has to remember which font of the +family it's using before selecting a particular glyph. +<p>When TeX version 3 arrived, most of the excuses for the +eccentricity of Knuth's encodings went away, and at TUG's Cork +meeting, an encoding for a set of 256 glyphs, for use in TeX text, +was defined. The intention was that these glyphs should cover 'most' +European languages that use Latin alphabets, in the sense of including +all accented letters needed. (Knuth's CMR fonts missed things +necessary for Icelandic and Polish, for example, but the Cork +fonts have them. Even Cork's coverage isn't complete: it misses +letters from Romanian, Eastern and Northern Sami, and Welsh, at +least. The Cork encoding does contain "NG" glyphs that +allows it to support Southern Sami.) LaTeX refers to the +Cork encoding as T1, and +provides the means to use fonts thus encoded to avoid problems with +the interaction of accents and hyphenation + +(see <a href="FAQ-hyphenaccents.html">hyphenation of accented words</a>). + +<p>The only Metafont-fonts that conform to the Cork encoding are the +EC fonts. They look CM-like, though their metrics +differ from CM-font metrics in several areas. The fonts are +now regarded as 'stable' (in the same sense that the CM fonts +are stable: their metrics are unlikely ever to change). Their serious +disadvantages for the casual user are their size (each EC font +is roughly twice the size of the corresponding CM font), and +there are far more of them than there are CM fonts. The simple +number of fonts has acted as a disincentive to the production of Adobe +Type 1 versions of the fonts,, but several commercial suppliers offer +EC or +EC-equivalent fonts in type 1 or TrueType form - see + +<a href="FAQ-commercial.html">commercial suppliers</a>, and free +<a href="FAQ-textrace.html">auto-traced versions</a> are +available. +What's more, until corresponding fonts for mathematics are produced, +the CM fonts must be retained because some mathematical symbols +are drawn from text fonts in the CM encodings. +<p>The EC fonts are distributed with a +set of 'Text Companion' (TC) fonts that provide glyphs for +symbols commonly used in text. The TC fonts are encoded +according to the LaTeX TS1 encoding, and are not viewed as +'stable' in the same way as are the EC fonts are. +<p>The Cork encoding is also implemented by virtual fonts provided in the + + <a href="FAQ-usepsfont.html">PSNFSS system</a>, +for PostScript fonts, and also by the <i>txfonts</i> and +<i>pxfonts</i> font packages + +(see <a href="FAQ-psfchoice.html">"choice of scalable fonts"</a>). +<dl> +<dt><tt><i>EC and TC fonts</i></tt><dd><a href="ftp://cam.ctan.org/tex-archive/fonts/ec.zip">fonts/ec</a> (<a href="ftp://cam.ctan.org/tex-archive/fonts/ec.tar.gz">gzipped tar</a>, <a href="http://www.tex.ac.uk/tex-archive/fonts/ec/">browse</a>) +</dl> +<p><p>This question on the Web: <a href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=ECfonts">http://www.tex.ac.uk/cgi-bin/texfaq2html?label=ECfonts</a> +</body> |