mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-11-09 09:20:15 +01:00
208 lines
6.7 KiB
Plaintext
208 lines
6.7 KiB
Plaintext
#
|
|
# $Id: UCDATAREADME.txt,v 1.1 1999/01/08 00:19:20 ftang%netscape.com Exp $
|
|
#
|
|
|
|
MUTT UCData Package 1.9
|
|
-----------------------
|
|
|
|
This is a package that supports ctype-like operations for Unicode UCS-2 text
|
|
(and surrogates), case mapping, and decomposition lookup. To use it, you will
|
|
need to get the "UnicodeData-2.0.14.txt" (or later) file from the Unicode Web
|
|
or FTP site.
|
|
|
|
This package consists of two parts:
|
|
|
|
1. A program called "ucgendat" which generates five data files from the
|
|
UnicodeData-2.*.txt file. The files are:
|
|
|
|
A. case.dat - the case mappings.
|
|
B. ctype.dat - the character property tables.
|
|
C. decomp.dat - the character decompositions.
|
|
D. cmbcl.dat - the non-zero combining classes.
|
|
E. num.dat - the codes representing numbers.
|
|
|
|
2. The "ucdata.[ch]" files which implement the functions needed to
|
|
check to see if a character matches groups of properties, to map between
|
|
upper, lower, and title case, to look up the decomposition of a
|
|
character, look up the combining class of a character, and get the number
|
|
value of a character.
|
|
|
|
A short reference to the functions available is in the "api.txt" file.
|
|
|
|
Techie Details
|
|
==============
|
|
|
|
The "ucgendat" program parses files from the command line which are all in the
|
|
Unicode Character Database (UCDB) format. An additional properties file,
|
|
"MUTTUCData.txt", provides some extra properties for some characters.
|
|
|
|
The program looks for the two character properties fields (2 and 4), the
|
|
combining class field (3), the decomposition field (5), the numeric value
|
|
field (8), and the case mapping fields (12, 13, and 14). The decompositions
|
|
are recursively expanded before being written out.
|
|
|
|
The decomposition table contains all the canonical decompositions. This means
|
|
all decompositions that do not have tags such as "<compat>" or "<font>".
|
|
|
|
The data is almost all stored as unsigned longs (32-bits assumed) and the
|
|
routines that load the data take care of endian swaps when necessary. This
|
|
also means that surrogates (>= 0x10000) can be placed in the data files the
|
|
"ucgendat" program parses.
|
|
|
|
The data is written as external files and broken into five parts so it can be
|
|
selectively updated at runtime if necessary.
|
|
|
|
The data files currently generated from the "ucgendat" program total about 56K
|
|
in size all together.
|
|
|
|
The format of the binary data files is documented in the "format.txt" file.
|
|
|
|
Mark Leisher <mleisher@crl.nmsu.edu>
|
|
13 December 1998
|
|
|
|
CHANGES
|
|
=======
|
|
|
|
Version 1.9
|
|
-----------
|
|
1. Fixed a problem with an incorrect amount of storage being allocated for the
|
|
combining class nodes.
|
|
|
|
2. Fixed an invalid initialization in the number code.
|
|
|
|
3. Changed the Java template file formatting a bit.
|
|
|
|
4. Added tables and function for getting decompositions in the Java class.
|
|
|
|
Version 1.8
|
|
-----------
|
|
1. Fixed a problem with adding certain ranges.
|
|
|
|
2. Added two more macros for testing for identifiers.
|
|
|
|
3. Tested with the UnicodeData-2.1.5.txt file.
|
|
|
|
Version 1.7
|
|
-----------
|
|
1. Fixed a problem with looking up decompositions in "ucgendat."
|
|
|
|
Version 1.6
|
|
-----------
|
|
1. Added two new properties introduced with UnicodeData-2.1.4.txt.
|
|
|
|
2. Changed the "ucgendat.c" program a little to automatically align the
|
|
property data on a 4-byte boundary when new properties are added.
|
|
|
|
3. Changed the "ucgendat.c" programs to only generate canonical
|
|
decompositions.
|
|
|
|
4. Added two new macros ucisinitialpunct() and ucisfinalpunct() to check for
|
|
initial and final punctuation characters.
|
|
|
|
5. Minor additions and changes to the documentation.
|
|
|
|
Version 1.5
|
|
-----------
|
|
1. Changed all file open calls to include binary mode with "b" for DOS/WIN
|
|
platforms.
|
|
|
|
2. Wrapped the unistd.h include so it won't be included when compiled under
|
|
Win32.
|
|
|
|
3. Fixed a bad range check for hex digits in ucgendat.c.
|
|
|
|
4. Fixed a bad endian swap for combining classes.
|
|
|
|
5. Added code to make a number table and associated lookup functions.
|
|
Functions added are ucnumber(), ucdigit(), and ucgetnumber(). The last
|
|
function is to maintain compatibility with John Cowan's "uctype" package.
|
|
|
|
Version 1.4
|
|
-----------
|
|
1. Fixed a bug with adding a range.
|
|
|
|
2. Fixed a bug with inserting a range in order.
|
|
|
|
3. Fixed incorrectly specified ucisdefined() and ucisundefined() macros.
|
|
|
|
4. Added the missing unload for the combining class data.
|
|
|
|
5. Fixed a bad macro placement in ucisweak().
|
|
|
|
Version 1.3
|
|
-----------
|
|
1. Bug with case mapping calculations fixed.
|
|
|
|
2. Bug with empty character property entries fixed.
|
|
|
|
3. Bug with incorrect type in the combining class lookup fixed.
|
|
|
|
4. Some corrections done to api.txt.
|
|
|
|
5. Bug in certain character property lookups fixed.
|
|
|
|
6. Added a character property table that records the defined characters.
|
|
|
|
7. Replaced ucisunknown() with ucisdefined() and ucisundefined().
|
|
|
|
Version 1.2
|
|
-----------
|
|
1. Added code to ucgendat to generate a combining class table.
|
|
|
|
2. Fixed an endian problem with the byte count of decompositions.
|
|
|
|
3. Fixed some minor problems in the "format.txt" file.
|
|
|
|
4. Removed some bogus "Ss" values from MUTTUCData.txt file.
|
|
|
|
5. Added API function to get combining class.
|
|
|
|
6. Changed the open mode to "rb" so binary data files will be opened correctly
|
|
on DOS/WIN as well as other platforms.
|
|
|
|
7. Added the "api.txt" file.
|
|
|
|
Version 1.1
|
|
-----------
|
|
1. Added ucisxdigit() which I overlooked.
|
|
|
|
2. Added UC_LT to the ucisalpha() macro which I overlooked.
|
|
|
|
3. Change uciscntrl() to include UC_CF.
|
|
|
|
4. Added ucisocntrl() and ucfntcntrl() macros.
|
|
|
|
5. Added a ucisblank() which I overlooked.
|
|
|
|
6. Added missing properties to ucissymbol() and ucisnumber().
|
|
|
|
7. Added ucisgraph() and ucisprint().
|
|
|
|
8. Changed the "Mr" property to "Sy" to mark this subset of mirroring
|
|
characters as symmetric to avoid trampling the Unicode/ISO10646 sense of
|
|
mirroring.
|
|
|
|
9. Added another property called "Ss" which includes control characters
|
|
traditionally seen as spaces in the isspace() macro.
|
|
|
|
10. Added a bunch of macros to be API compatible with John Cowan's package.
|
|
|
|
ACKNOWLEDGEMENTS
|
|
================
|
|
|
|
Thanks go to John Cowan <cowan@locke.ccil.org> for pointing out lots of
|
|
missing things and giving me stuff, particularly a bunch of new macros.
|
|
|
|
Thanks go to Bob Verbrugge <bob_verbrugge@nl.compuware.com> for pointing out
|
|
various bugs.
|
|
|
|
Thanks go to Christophe Pierret <cpierret@businessobjects.com> for pointing
|
|
out that file modes need to have "b" for DOS/WIN machines, pointing out
|
|
unistd.h is not a Win 32 header, and pointing out a problem with ucisalnum().
|
|
|
|
Thanks go to Kent Johnson <kent@pondview.mv.com> for finding a bug that caused
|
|
incomplete decompositions to be generated by the "ucgendat" program.
|
|
|
|
Thanks go to Valeriy E. Ushakov <uwe@ptc.spbu.ru> for spotting an allocation
|
|
error and an initialization error.
|