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-------------------------------------------------------------------
ISO-Latin2 through ISO-Latin6 encoded fonts in xcircuit
-------------------------------------------------------------------
Xcircuit supports ISO-Latin2 encoding (Eastern Europe) since
version 2.0a9. This feature is not set up by default because
PostScript output is not (yet) possible without the use of the
program "ogonkify". This support has been extended to other
Latin encodings: ISO-Latin5 (Turkish) version 2.0a10 (6/14/99).
Here's how to get ISO-Latin2 and other Latin encodings in
xcircuit:
-------------------------------------------------------------------
1) Edit file lib/startup.script. Uncomment (remove the leading
'%' from) lines 15-17 (the ISO-Latin2 font encoding files). Do
this before "make install"; otherwise, the file will be in
(depending on the definition of XCIRCUIT_LIB_DIR in the
Makefile) /usr/local/lib/xcircuit-3.6/startup.script.
In the Tcl/Tk version, this file is lib/tcl/xcstartup.tcl,
or, after installation, /usr/local/lib/xcircuit-3.6/xcstartup.tcl.
2) When creating text, be sure to select "Text->Encoding->
ISO-Latin2" from the menu. This can be enabled by default
simply by having a .xcircuitrc file in your home directory
containing a line such as:
set default font Times-RomanISO2
3) To get proper PostScript output on a printer, you will need to
have the (separate) program "ogonkify", found at:
http://www.dcs.ed.ac.uk/home/jec/ogonkify/
ftp://ftp.dcs.ed.ac.uk/pub/jec/programs
"ogonkify" is necessary because PostScript does not contain
ISO-Latin2 encoding by default. The accents such as the caron
and ogonek exist in the font definition, but the correct
alignments for putting them together need to be provided.
Ogonkify does this best.
4) Every file containing ISO-Latin2 text must be postprocessed
through "ogonkify" using the following command, before it will
print correctly on a PostScript printer:
ogonkify -e L2 -ATH file.ps | perl -ne \
's/StandardEncoding/ISOLatin2Encoding/g;\
s/ exch defi/ISO2 exch defi/g;print' > file.out.ps
Switches: -A does Courier, -T does Times-Roman, and -H does
Helvetica; use only what's necessary to keep the output file
smaller. "-e L2" signifies Latin2 encoding; this is not
strictly necessary as ogonkify defaults to L2. All other
Latin encodings require the -e switch.
Note that the output is piped through a couple of perl
commands. This may seem overly complicated; the first
substitution corrects a bug in ogonkify output (which may
disappear from releases of ogonkify in the future). The
second substitution allows xcircuit to specify the ISO-Latin2
encodings separately from ISO-Latin1 and Adobe Standard
encodings, so that any and all encodings can be "mixed and
matched" in the same file and even the same label.
5) In a nutshell: xcircuit defines each ISO-Latin2 font name as
the original name followed by the string "ISO2". Xcircuit
can then load the file and interpret the font encodings
unambiguously. However, the new ISO-Latin2 font names are not
defined by PostScript. Running "ogonkify" in the manner shown
above will add a true PostScript definition for each of the
ISO-Latin2 fonts. Without "ogonkify", a PostScript printer
or interpreter will either produce an error or else substitute
a default font for the unrecognized one.
6) The "ogonkification" of the file will not affect xcircuit's
ability to read it back into the program. xcircuit will
continue to display the ISO-Latin2 text correctly regardless of
whether or not the file has been run through "ogonkify".
However, the header material inserted by "ogonkify" will be
lost every time xcircuit writes the file back out.
7) Other ISO-LatinX encodings: Currently ISO-Latin5 is supported,
and additional encodings will be created as I get requests for
them. Follow the instructions above for ISO-Latin2, but replace
all occurences of "2" with "5".
e.g.,
ogonkify -e L5 -ATH file.ps | perl -ne \
's/StandardEncoding/ISOLatin5Encoding/g;\
s/ exch defi/ISO5 exch defi/g;print' > file.out.ps
and add lines
% times_romaniso5.xfe loadfontencoding
% courieriso5.xfe loadfontencoding
% helveticaiso5.xfe loadfontencoding
to psfiles/builtins.lps (or /usr/local/lib/xcircuit-2.0/builtins.lps, if
already installed).
8) Version 3.6.36 corrects a long-existing mistake in which only X11 keysyms
0-255 are accepted as keyboard-entry. By converting the X11 keysyms to
keycodes, ISO-Latin2 characters can be typed directly into XCircuit from
the keyboard. It would be nice, though, if XCircuit would auto-detect
the expected encoding from the keysym and insert the proper font switch,
loading fonts if necessary.
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