path: root/Master/texmf-dist/doc/fonts/fc/fc.rme

fc.rme version 1.4b of 1-JUN-2004
(c) Copyright 1992--2004 by J"org Knappen

This is the documentation of the fc-Fonts for African languages

Contents:

I)   Introduction

II)  About the FC-Scheme
     a) The language base
     b) Technical points
     c) Copiing conditions

III) How to generate the fonts with METAFONT

IV)  How to use the FC-Fonts with LaTeX2e

V)   Availability

VI)  Acknowledgements

Appendix A) The FC encoding scheme (codes 128 -- 255)
Appendix B) Removed -- see file fc.bug
Appendix C) Shortcomings and known bugs of the first release
Appendix D) T4-to-UCS correspondence

                I. Introduction

  TeX is a typesetting system for high quality typesetting. It is available 
  free due to the generosity of its developper, Prof D. E. Knuth. It is
  available for many different platforms, from microcomputers (PC, Atari, Mac)
  to mainframes and even supercomputers. TeX files can be interchanged between
  different systems and will produce identical output. TeX is well documented 
  in D. E. Knuth, Computers and typesetting, Vol. A -- The Texbook.

  The release of TeX Version 3 stimulated lots of work in the area of adapting
  TeX to the needs of other languages than english. One outstanding project was
  the creation of a font encoding scheme with 256 characters for international
  use. It soon turned out, that with 256 code points only the needs of european
  languages could be satisfied (the EC scheme proceeds this way), and there had
  to be other fonts for non-european languages. The FC (aFrican Computer) 
  scheme fits the needs of african languages with latin writing. This scheme 
  comes together with an implementation of the fonts in METAFONT. The fonts 
  created by METAFONT can also be used by other system than TeX.

                II. About the FC-Scheme

   a) The language base

  There is a great diversity of languages spoken in africa, and it was 
  impossible to check all of them for their alphabets. This work is based on 
  the examination of the ``critical languages'' according to a definition of 
  the US department of education in 1985. They include all those languages
  with more than 1 mio speakers. 

  Only orthographical writing is considered. Transscription systems devolopped
  by linguists are outside the scope of this work. Obsolete orthographies are
  also not included (for example the obsolete uppercase form of hooktop B in 
  Xhosa and Zulu or the obsolete (catholic) orthography of \d{I}gb\d{o}). 

  Even these constraints showed the lack of code space. Therefore some accented
  letters did not enter the fc scheme. Generally, accented letters were omitted,
  if the accent denotes a tonal mark. This is in consistency with the current
  trend in orthography to suppress tonal marks, except if ambiguities occur.
  Also omitted are consonants with tilde to denote nasalisation. The mentioned
  letters can be created in TeX by the use of macros (e.g. \~y).

  The following languages are supported:

  Akan, Bamileke, Basa (Kru), Bemba, Ciokwe, Dinka, Dholuo (Luo), Efik, 
  Ewe-Fon, Fulani (Fulful), G\~a, Gbaya, Hausa, Igbo, Kanuri, Kikuyu, 
  Kikongo, Kpelle, Krio, Luba, Mandekan (Bambara), Mende, More, Ngala, 
  Nyanja, Oromo, Rundi, Kinya Rwanda, Sango, Serer, Shona, Somali, Songhai, 
  Sotho (two different writing systems), Suaheli, Tiv, Yao, Yoruba, Xhosa 
  and Zulu.
  
  I decided to support two european languages, which are not covered by the 
  EC-scheme, namely Maltese and Sami.

  Currency symbols (Like Naira and Cedi) aren't part of the fc fonts. They
  are available from the tc (Text companion symbols) fonts distributed
  together with the ec (European Computer Modern) fonts. 

  b) Technical points

  The fc encoding scheme will not be changed anymore. Every font, which begins
  with the two characters fc should be encoded according to the fc scheme.

  The fonts named fcr etc. contain  what you expect from TeX naming conventions.
  They are currently maintained by the author.

  The code points are choosen from scratch, according to the following rules:

  * The lower 128 codes are identical to the Cork (ec) scheme
  
  * A glyph also occurring in the Cork scheme is placed on the same code point
    as in the Cork scheme
  
  * Each letter from TeX's original cm-fonts is saved. Thus, you can print
    polish L, skandinavian crossed O and some other letters with the fc fonts.
  
  * The difference between uppercase and corresponding lowercase letter is 
    a constant.

  c) Copying conditions

  The fc fonts are copyrighted but free according to the conditions of the GNU
  licence, version 2. You should receive a copy of the file licence.gnu
  containing this licence. If not, complain to the person from which you
  received these fonts. Read the licence carefully.


           III) How to generate the fonts with METAFONT

  Besides the files of the fc package, you need the following:

  * plain.mf  (or a METAFONT with plain preloaded)
  * cmbase.mf (or a METAFONT with cmbase preloaded)

  * The files romand.mf, itald.mf, and olddig.mf (the original digits from the 
  cm fonts)

  * The Sauter tools. These are a bunch of files, named like c-cmr.mf and so on.
  They are available from the CTAN archive sites and their mirros. The CTAN 
  sites are ftp.dante.de and ftp.tex.ac.uk. 
  The Sauter tools are located there under tex-archive/fonts/cm/sauter.

  Make sure, that all files are in appropriate directories, where METAFONT 
  finds them.

  Now you are ready to create the fc fonts at any size you want, for example to
  create the font fcr10 do the following:

  mf "\mode=localfont; design_size:=10; input b-fcr"
  gftopk  b-fcr.300gf fcr10.pk
  rename  b-fcr.tfm   fcr10.tfm

  and move the .pk and .tfm-files to their directories. The exact form of the
  calls depends a little on your operating system.

  You might find it helpful to make yourself little mf-files of the type

  % fcr10.mf
  design_size:=10;
  input b-fcr;
  endinput;
  % end of fcr10.mf

  These files are especially usefull, if you have an automagic procedure
  invoking METAFONT. Note, that for the sizes 11pt and >12pt, the design_size 
  is not identical to the last digits of the fontname. It is

  fcr11   design_size:=10.95;
  fcr14   design_size:=14.4;
  fcr17   design_size:=17.28;
  fcr20   design_size:=20.74;
  fcr24   design_size:=24.88;

  Note that there is only one fc italic font, called fci. It is not planned to
  add fc math fonts to the distribution. Use the cm math fonts (or the not yet
  released ec math fonts).

           IV) How to use the FC-Fonts with LaTeX2e

  The LaTeX3 team has assigned the encoding T4 to fc encoded fonts. So you
  can use the fc fonts in LaTeX2e simply by saying
  \usepackage[T4]{fontenc}
  
  This call loads the following files, which must be located in the search 
  path of LaTeX2e:

  t4enc.def, t4cmr.fd, t4cmss.fd, t4cmtt.fd.

  There is another option which aemulates the behaviour of the previous 
  LaTeX209 with NFSS1 implementation. It gives you easy access to the
  sans serif typerwriter font included in this package by simply typing
  \ss\tt or \tt\ss. This option is called by

  \usepackage{fclfont}

  and requires the four abovementioned file plus

  fclfont.sty and t4fcr.fd.

  The files fclfont.sty_old and fontdef.fc_old from the previous release 
  are obsolete and now frozen. They have been renamed to make this notion
  clear.

  fcuse.sty shows you how to make the input easy by employing active 
  characters. It is an example rather than a standard package. Its use is 
  only recomended, if you want to use the complete fc character set. Usually 
  you only want to typeset text in one or two languages, and a language 
  specific style option will be more appropriate. Look into existing language 
  dependent style options (e.g. german.sty) or into the babel system by 
  J. Braams to figure out how to create a new one.

           V) Availability

  The fc package is available per anonymous ftp or e-mail from the DANTE-server
  at Heidelberg, which is the primary site of its distribution. Since the main
  TeX archives cooperate, it will be available from other sites, too.

  The address of the DANTE-Server is:
  (ftp:) ftp.dante.de            
  (e-mail:) mailserver@rusinfo.rus.uni-stuttgart.de

  Update notices are distributed via the mailing list CTAN-Ann@shsu.edu.  


           VI) Acknowledgements

  Without the work of other authors on META-fonts, these fonts would surely
  never have come out. I took deliberately from all available free metafont
  sources ideas, macros, and even whole characters. All bugs and mistakes in
  this code are mine, noone of the acknowledged authors should be blamed for
  them. 

  The first acknoledgement goes to Donald E. Knuth, the author of the TeX and
  METAFONT programs and also of the computer modern (cm) family of fonts.
  His work is the base of this one.

  I also want to acknowledge the following persons:

  Julian Bradfield, who made the cmoe old english font.
  Malcolm Clark, editor of the newsletter TeXline.
  Nana Glonti and Aleksander Samarin, who made the cmcyr cyrillic fonts.
  Yannis Haralambous, who created of the 128-char greek fonts (and many others)
  Emma Pease, who made the cmph phonetic fonts (Her work is used in the 
              Hausa--English dictionary by Rosanna Ma Newman)
  J"orgen Pind, who made icelandic TeX and fonts for it.
  Tom Ridgeway of the University of Washington, who made the wncyr cyrillic
              fonts and experiments with a new ipa font. 
  Norbert Schwarz, who made the dc-fonts, a first implementation of the 
              ec- (Cork-) scheme.
  Janene Winter, who made the wsuipa international phonetic fonts, from which 
              I learned much.

  For help in the africanist part of the work, I want to thank Prof. Norbert
  Ciffer, Institut f"ur Ethnologie und Afrikastudien Mainz, for pointing me to
  the critical languages and help in finding references. I thank Prof. Fiona
  McLaughlin, University of Kansas, Lawrence, Kansas, for good references on 
  Serer and Prof Michael MacMahon, University of Glasgow for sending samples 
  of african letters. 


           Appendix A: The fc encoding scheme (octal 200 -- 377)

octal code  description                            input 

200         uppercase hooktop B                    \m B
201         uppercase hooktop D                    \m D
202         uppercase open E (\varepsilon-like)    \m E
203         uppercase reversed E (like \exists)    \M E
204         uppercase long F                       \m F
205         uppercase E with ha\v{c}ek             \v E
206         uppercase ipa Gamma                    \m G
207         uppercase double barred H              \B H

210         uppercase hooktop K                    \m K
211         uppercase Enj                          \m J
212	    uppercase open O (revesed C)           \m O
213	    uppercase N with acute                 \'N
214 	    uppercase Esh                          \m S
215	    uppercase Eng                          \m N
216	    uppercase variant U (\upsilon-like)    \m U or \m V
217         uppercase hooktop Y                    \m Y

220	    uppercase hooktop C                    \m C
221         uppercase hooktop P                    \m P
222	    uppercase S with ha\v{c}ek             \v S
223	    uppercase N with dot above             \.N
224         uppercase N with line below            \b N
225	    uppercase S with dot below             \d S
226	    uppercase Ezh                          \m Z
227         uppercase crossed T                    \B T

230         uppercase E with dot above             \.E
231         uppercase E with dot below             \d E
232	    uppercase hooktop T                    \m T
233         uppercase T with tail                  \M T
234 	    ligature t-esh                         \tsh
235	    ligature fj                            fj
236	    lowercase crossed d                    \B d
237	    double grave accent                    \G

240	    lowercase hooktop b                    \m b
241	    lowercase hooktop d                    \m d
242	    lowercase open e                       \m e
243	    lowercase inverted e                   \M e
244   	    lowercase long f                       \m f
245	    lowercase e with ha\v{c]ek             \v e
246	    lowercase ipa gamma                    \m g
247         lowercase crossed h                    \B h

250	    lowercase hooktop k                    \m k
251	    lowercase enj                          \m j
252	    lowercase open o                       \m o
253	    lowercase n with acute                 \'n
254  	    lowercase esh                          \m s
255	    lowercase eng                          \m n
256	    lowercase variant u                    \m u or \m v
257	    lowercase hooktop y                    \m y

260 	    lowercase hooktop c                    \m c
261	    lowercase hooktop p                    \m p
262	    lowercase s with ha\v{c}ek             \v s
263	    lowercase n with dot above             \.n
264  	    lowercase n with line below            \b n
265	    lowercase s with dot below             \d s
266	    lowercase ezh                          \m z
267	    lowercase crossed t                    \B t

270	    lowercase e with dot above             \.e
271	    lowercase e with dot below             \d e
272	    lowercase hooktop t                    \m t
273	    lowercase t with tail                  \M t
274  	    double universal accent                \U
275	    inverted exclamation mark              !`
276	    inverted question mark                 ?`
277 	    unversal accent                        \I

300	    uppercase latin Iota                   \m I
301	    uppercase I with dot below             \d I
302	    uppercase open E with tilde            \T E
303 	    uppercase A with tilde                 \~A
304  	    uppercase M with acute                 \'M
305	    uppercase Open O with tilde            \T O
306	    uppercase ligature AE                  \AE
307	    uppercase C with cedilla               \c C

310	    uppercase E with grave                 \`E
311	    uppercase E with acute                 \'E
312	    uppercase E with circumflex            \^E
313	    uppercase E with diaresis              \"E
314  	    uppercase E with line below            \b E
315	    uppercase E with macron                \=E
316	    uppercase E with tilde                 \~E
317	    uppercase I with tilde                 \~I

320	    uppercase crossed D                    \B D
            uppercase D with tail                  \M D
            uppercase Edh                          \DH
321	    uppercase N with tilde                 \~N
322	    uppercase O with grave                 \`O
323	    uppercase O with dot above             \.O
324  	    uppercase O with circumflex            \^O
325	    uppercase O with tilde                 \~O
326	    uppercase O with diaresis              \"O
327	    uppercase ligature OE                  \OE

330	    uppercase crossed O (skandinavian)     \O
331	    uppercase O with dot below             \d O
332	    uppercase O with line below            \b O
333	    uppercase O with macron                \= O
334  	    uppercase O with ha\v{c}ek             \v O
335	    uppercase U with dot below             \d U
336	    uppercase U with tilde                 \~U
337	    cross piece for polish L and l         \char'337  
Macro       uppercase polish L with crossbar       \L
Macro       lowercase polish l with crossbar       \l

340	    lowercase latin iota                   \m i
341	    lowercase i with dot below             \d i
342	    lowercase open e with tilde            \T e
343	    lowercase a with tilde                 \~a
344    	    lowercase m with acute                 \'m
345	    lowercase open o with tilde            \T o
346	    lowercase ligature ae                  \ae
347	    lowercase c with cedilla               \c c

350 	    lowercase e with grave                 \`e
351	    lowercase e with acute                 \'e
352	    lowercase e with circumflex            \^e
353	    lowercase e with diaresis              \"e
354 	    lowercase e with line below            \b e
355	    lowercase e with macron                \=e
356	    lowercase e with tilde                 \~e
357	    lowercase i with tilde                 \~i

360 	    lowercase d with tail (note: not edh!) \M d
361	    lowercase n with tilde                 \~n
362	    lowercase o with grave                 \`o
363	    lowercase o with dot above             \.o
364 	    lowercase o with circumflex            \^o
365	    lowercase o with tilde                 \~o
366	    lowercase o with diaresis              \"o
367	    lowercase ligature oe                  \oe

370	    lowercase crossed o (skandinavian)     \o
371	    lowercase o with dot below             \d o
372	    lowercase o with line below            \b o
373	    lowercase o with macron                \= o
374  	    lowercase o with ha\v{c}ek             \v o
375	    lowercase u with dot below             \d u
376	    lowercase u with tilde                 \~u
377	    lowercase scharfes s                   \ss

Macro       Copyleft sign (circled open o)         \copyleft

           Appendix B: List of files

Please find the list of files together with the current version number 
and date in fc.bug.

           Appendix C: Bugs

  Unfortunately, one has to expect bugs (sigh!) in this package, allthough
  I'm trying to get rid of them. For a list of already known (and maybe 
  fixed) bugs, see the file fc.bug.

  The fonts were developped on a 300dpi write white device, and
  probably even a bit optimised to it. They are also tested on a 300dpi 
  write black engine and a 600dpi write black engine. Some times 
  strange path error messages occurred, but they did not seem to cause visible
  harm. There might be visible errors, too, which I did not discover.

  If you find an bug or mistake, send it to me, including the following 
  information:

  Which parameters caused the error/bug?
  (e.g. design_size=6; b-fctt)

  Which mode did you use?
  (Please don't say ``localfont', this tells nothing to me...
  e.g. lowres from cmbase,
  ricoh from Karl Berry's modes.mf)

  Which character contains the bug?
  (e.g. [162] open_e)

  Is the damage visible in the printout? What does it look like?
  (e.g. Nothing at all is printed, or some part of the letter is missing)

  Send bug reports to:

  J\"org Knappen
  Dieselstra\ss{}e 13
  66123 Saarbr\"ucken
  R.F.A.

  e-mail joerg.knappen@uni-mainz.de. 

  P.S if you know a fix, it is greatly appreciated...

            Appendix D: T4-to-UCS correspondence

This appendix contains a correspondence between the characters encoded in
the T4 encoding and the Universal Character Set (UCS) as defined in the ISO
Standard ISO-10646. The UCS is also popularly known as UNicode.

The following characters are not part of the UCS:

  latin small ligature fj
  latin [small|capital] letter e with line below
  latin [small|capital] letter o with line below
  latin [small|capital] letter open e with tilde
  latin [small|capital] letter open o with tilde

The ligature character of the fj ligature is ignored here and it is
mapped to the two characters f j. The remaining 8 characters are coded using 
combining diacritics. There are two digraphs added at the end of the list
for the polish l with stroke.


T4     Unicode       latex2e macro
128    0x0181        \m B
129    0x018a        \m D
130    0x0190        \m E
131    0x018e        \M E
132    0x0191        \m F
133    0x011a        \v E
134    0x0194        \m G
135    0x0126        \B H
136    0x0198        \m K
137    0x019d        \m J
138    0x0186        \m O
139    0x0134        \'N
140    0x01a9        \m S
141    0x014a        \NG{}
142    0x01b2        \m U
143    0x01b3        \m Y
144    0x0187        \m C
145    0x01a4        \m P
146    0x0160        \v S
147    0x1e44        \.N
148    0x1e48        \b N
149    0x1e62        \d S
150    0x0167        \m Z
151    0x0166        \B T
152    0x0166        \.E
153    0x1eb8        \d E
154    0x01ac        \m T
155    0x01ae        \M T
156    0x02a7        \tsh{}
157    0x0066,0x0069 fj
158    0x0111        \dj{}
159    0x030f        \G{}
160    0x0253        \m b
161    0x0257        \m d
162    0x0258        \m e
163    0x01dd        \M e
164    0x0192        \m f
165    0x011b        \v e
166    0x0263        \m g
167    0x0127        \B h
168    0x0199        \m k
169    0x0272        \m j
170    0x0254        \m o
171    0x0144        \'n
172    0x03a3        \m s
173    0x028b        \ng{}
174    0x014b        \m u
175    0x01b4        \m y
176    0x0188        \m c
177    0x01a5        \m p
178    0x0161        \v s
179    0x1e45        \.n
180    0x1e49        \b n
181    0x1e63        \d s
182    0x0292        \m z
183    0x0167        \B t
184    0x0117        \.e
185    0x1eb9        \d e
186    0x01ad        \m t
187    0x0288        \M t
188    0x030e        \U{}
189    0x00a1        \textexclamdown{}
190    0x00bf        \textquestiondown{}
191    0x030d        \I{}
192    0x0196        \m I
193    0x1eca        \d I
194    0x0190,0x0303 \~{\m E}
195    0x00c3        \~A
196    0x1e3e        \'M
197    0x0186,0x0303 \~{\m O}
198    0x00c6        \AE{}
199    0x00c7        \c C
200    0x00c8        \^E
201    0x00c9        \'E
202    0x00ca        \^E
203    0x00cb        \"E
204    0x0045,0x0331 \b E
205    0x0112        \=E
206    0x1ebc        \~E
207    0x0128        \~I
208    0x0189        \M D
209    0x00d1        \~N
210    0x00d2        \NG{}
211    0x022e        \.O
212    0x00d4        \^O
213    0x00d5        \~O
214    0x00d6        \"O
215    0x0152        \OE{}
216    0x00d8        \O{}
217    0x1ecc        \d O
218    0x004f,0x0331 \b O
219    0x014c        \=O
220    0x01d1        \v O
221    0x1ee4        \d U
222    0x0168        \~U
223    0x0337        {\fontencoding[T4]\selectfont \char223 }
224    0x0269        \m i
225    0x1ecb        \d i
226    0x0258,0x0303 \~{\m e}
227    0x00e3        \~a
228    0x1e3f        \'m
229    0x0254,0x0303 \~{\m o}
230    0x00e6        \ae{}
231    0x00e7        \c c
232    0x00e8        \^e
233    0x00e9        \'e
234    0x00ea        \^e
235    0x00eb        \"e
236    0x0065,0x0331 \b e
237    0x0113        \=e
238    0x1ebd        \~e
239    0x0129        \~\i
240    0x0256        \M d
241    0x00f1        \~n
242    0x00f2        \ng{}
243    0x022f        \.o
244    0x00f4        \^o
245    0x00f5        \~o
246    0x00f6        \"o
247    0x0153        \oe{}
248    0x00f8        \o{}
249    0x1ecd        \d o
250    0x006f,0x0331 \b o
251    0x014d        \=o
252    0x01d2        \v o
253    0x1ee5        \.u
254    0x0169        \~u
255    0x00df        \ss{}

T4 digraph Unicode  latex2e macro
223,76     0x0141   \L{}
223,108    0x0142   \l{}

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