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# $FreeBSD: release/9.1.0/share/i18n/csmapper/APPLE/DEVANAGA%25UCS.src 219019 2011-02-25 00:04:39Z gabor $
TYPE ROWCOL
NAME DEVANAGA/UCS
SRC_ZONE 0x00-0xFA
OOB_MODE ILSEQ
DST_ILSEQ 0xFFFE
DST_UNIT_BITS 16
#=======================================================================
# File name: DEVANAGA.TXT
#
# Contents: Map (external version) from Mac OS Devanagari
# encoding to Unicode 2.1 and later.
#
# Copyright: (c) 1995-2002, 2005 by Apple Computer, Inc., all rights
# reserved.
#
# Contact: charsets@apple.com
#
# Changes:
#
# c02 2005-Apr-05 Update header comments; add section on
# roundtrip considerations. Matches internal
# xml <c1.1> and Text Encoding Converter 2.0.
# b3,c1 2002-Dec-19 Update URLs. Matches internal utom<b1>.
# b02 1999-Sep-22 Update contact e-mail address. Matches
# internal utom<b1>, ufrm<b1>, and Text
# Encoding Converter version 1.5.
# n04 1998-Feb-05 First version; matches internal utom<n9>,
# ufrm<n15>.
#
# Standard header:
# ----------------
#
# Apple, the Apple logo, and Macintosh are trademarks of Apple
# Computer, Inc., registered in the United States and other countries.
# Unicode is a trademark of Unicode Inc. For the sake of brevity,
# throughout this document, "Macintosh" can be used to refer to
# Macintosh computers and "Unicode" can be used to refer to the
# Unicode standard.
#
# Apple Computer, Inc. ("Apple") makes no warranty or representation,
# either express or implied, with respect to this document and the
# included data, its quality, accuracy, or fitness for a particular
# purpose. In no event will Apple be liable for direct, indirect,
# special, incidental, or consequential damages resulting from any
# defect or inaccuracy in this document or the included data.
#
# These mapping tables and character lists are subject to change.
# The latest tables should be available from the following:
#
# <http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/>
#
# For general information about Mac OS encodings and these mapping
# tables, see the file "README.TXT".
#
# Format:
# -------
#
# Three tab-separated columns;
# '#' begins a comment which continues to the end of the line.
# Column #1 is the Mac OS Devanagari code or code sequence
# (in hex as 0xNN or 0xNN+0xNN)
# Column #2 is the corresponding Unicode or Unicode sequence
# (in hex as 0xNNNN or 0xNNNN+0xNNNN).
# Column #3 is a comment containing the Unicode name or sequence
# of names. In some cases an additional comment follows the
# Unicode name(s).
#
# The entries are in two sections. The first section is for pairs of
# Mac OS Devanagari code points that must be mapped in a special way.
# The second section maps individual code points.
#
# Within each section, the entries are in Mac OS Devanagari code order.
#
# Control character mappings are not shown in this table, following
# the conventions of the standard UTC mapping tables. However, the
# Mac OS Devanagari character set uses the standard control characters
# at 0x00-0x1F and 0x7F.
#
# Notes on Mac OS Devanagari:
# ---------------------------
#
# This is a legacy Mac OS encoding; in the Mac OS X Carbon and Cocoa
# environments, it is only supported via transcoding to and from
# Unicode.
#
# Mac OS Devanagari is based on IS 13194:1991 (ISCII-91), with the
# addition of several punctuation and symbol characters. However,
# Mac OS Devanagari does not support the ATR (attribute) mechanism of
# ISCII-91.
#
# 1. ISCII-91 features in Mac OS Devanagari include:
#
# a) Overloading of nukta
#
# In addition to using the nukta (0xE9) like a combining dot below,
# nukta is overloaded to function as a general character modifier.
# In this role, certain code points followed by 0xE9 are treated as
# a two-byte code point representing a character which may be
# rather different than the characters represented by either of
# the code points alone. For example, the character DEVANAGARI OM
# (U+0950) is represented in ISCII-91 as candrabindu + nukta.
#
# b) Explicit halant and soft halant
#
# A double halant (0xE8 + 0xE8) constitutes an "explicit halant",
# which will always appear as a halant instead of causing formation
# of a ligature or half-form consonant.
#
# Halant followed by nukta (0xE8 + 0xE9) constitutes a "soft
# halant", which prevents formation of a ligature and instead
# retains the half-form of the first consonant.
#
# c) Invisible consonant
#
# The byte 0xD9 (called INV in ISCII-91) is an invisible consonant:
# It behaves like a consonant but has no visible appearance. It is
# intended to be used (often in combination with halant) to display
# dependent forms in isolation, such as the RA forms or consonant
# half-forms.
#
# d) Extensions for Vedic, etc.
#
# The byte 0xF0 (called EXT in ISCII-91) followed by any byte in
# the range 0xA1-0xEE constitutes a two-byte code point which can
# be used to represent additional characters for Vedic (or other
# extensions); 0xF0 followed by any other byte value constitutes
# malformed text. Mac OS Devanagari supports this mechanism, but
# does not currently map any of these two-byte code points to
# anything.
#
# 2. Mac OS Devanagari additions
#
# Mac OS Devanagari adds characters using the code points
# 0x80-0x8A and 0x90-0x91 (the latter are some Devanagari additions
# from Unicode).
#
# 3. Unused code points
#
# The following code points are currently unused, and are not shown
# here: 0x8B-0x8F, 0x92-0xA0, 0xEB-0xEF, 0xFB-0xFF. In addition,
# 0xF0 is not shown here, but it has a special function as described
# above.
#
# Unicode mapping issues and notes:
# ---------------------------------
#
# 1. Mapping the byte pairs
#
# If one of the following byte values is encountered when mapping
# Mac OS Devanagari text - 0xA1, 0xA6, 0xA7, 0xAA, 0xDB, 0xDC, 0xDF,
# 0xE8, or 0xEA - then the next byte (if there is one) should be
# examined. If the next byte is 0xE9 - or also 0xE8, if the first
# byte was 0xE8 - then the byte pair should be mapped using the
# first section of the mapping table below. Otherwise, each byte
# should be mapped using the second section of the mapping table
# below.
#
# - The Unicode Standard, Version 2.0, specifies how explicit
# halant and soft halant should be represented in Unicode;
# these mappings are used below.
#
# If the byte value 0xF0 is encountered when mapping Mac OS
# Devanagari text, then the next byte should be examined. If there
# is no next byte (e.g. 0xF0 at end of buffer), the mapping
# process should indicate incomplete character. If there is a next
# byte but it is not in the range 0xA1-0xEE, the mapping process
# should indicate malformed text. Otherwise, the mapping process
# should treat the byte pair as a valid two-byte code point with no
# mapping (e.g. map it to QUESTION MARK, REPLACEMENT CHARACTER,
# etc.).
#
# 2. Mapping the invisible consonant
#
# It has been suggested that INV in ISCII-91 should map to ZERO
# WIDTH NON-JOINER in Unicode. However, this causes problems with
# roundtrip fidelity: The ISCII-91 sequences 0xE8+0xE8 and 0xE8+0xD9
# would map to the same sequence of Unicode characters. We have
# instead mapped INV to LEFT-TO-RIGHT MARK, which avoids these
# problems.
#
# 3. Additional loose mappings from Unicode
#
# These are not preserved in roundtrip mappings.
#
# U+0958 0xB3+0xE9 # DEVANAGARI LETTER QA
# U+0959 0xB4+0xE9 # DEVANAGARI LETTER KHHA
# U+095A 0xB5+0xE9 # DEVANAGARI LETTER GHHA
# U+095B 0xBA+0xE9 # DEVANAGARI LETTER ZA
# U+095C 0xBF+0xE9 # DEVANAGARI LETTER DDDHA
# U+095D 0xC0+0xE9 # DEVANAGARI LETTER RHA
# U+095E 0xC9+0xE9 # DEVANAGARI LETTER FA
#
# 4. Roundtrip considerations when mapping to decomposed Unicode
#
# Both ISCII-91 (hence Mac OS Devanagari) and Unicode provide multiple
# ways of representing certain Devanagari consonants. For example,
# DEVANAGARI LETTER NNNA can be represented in Unicode as the single
# character 0x0929 or as the sequence 0x0928 0x093C; similarly, this
# consonant can be represented in Mac OS Devanagari as 0xC7 or as the
# sequence 0xC6 0xE9. This leads to some roundtrip problems. First
# note that we have the following mappings without such problems:
#
# ISCII/ standard decomposition of reverse mapping
# Mac OS Unicode mapping standard mapping of decomposition
# ------ ----------------------- ---------------- ----------------
# 0xC6 0x0928 ... LETTER NA 0x0928 (same) 0xC6
# 0xCD 0x092F ... LETTER YA 0x092F (same) 0xCD
# 0xCF 0x0930 ... LETTER RA 0x0930 (same) 0xCF
# 0xD2 0x0933 ... LETTER LLA 0x0933 (same) 0xD2
# 0xE9 0x093C ... SIGN NUKTA 0x093C (same) 0xE9
#
# However, those mappings above cause roundtrip problems for the
# the following mappings if they are decomposed:
#
# ISCII/ standard decomposition of reverse mapping
# Mac OS Unicode mapping standard mapping of decomposition
# ------ ----------------------- ---------------- ----------------
# 0xC7 0x0929 ... LETTER NNNA 0x0928 0x093C 0xC6 0xE9
# 0xCE 0x095F ... LETTER YYA 0x092F 0x093C 0xCD 0xE9
# 0xD0 0x0931 ... LETTER RRA 0x0930 0x093C 0xCF 0xE9
# 0xD3 0x0934 ... LETTER LLLA 0x0933 0x093C 0xD2 0xE9
#
# One solution is to use a grouping transcoding hint with the four
# decompositions above to mark the decomposed sequence for special
# treatment in transcoding. This yields the following mappings to
# decomposed Unicode:
#
# ISCII/ decomposed
# Mac OS Unicode mapping
# ------ ----------------
# 0xC7 0xF860 0x0928 0x093C
# 0xCE 0xF860 0x092F 0x093C
# 0xD0 0xF860 0x0930 0x093C
# 0xD3 0xF860 0x0933 0x093C
#
# Details of mapping changes in each version:
# -------------------------------------------
#
##################
# Section 1: Map the following byte pairs as indicated:
# (ZWNJ means ZERO WIDTH NON-JOINER, ZWJ means ZERO WIDTH JOINER)
# (Also see note about 0xF0 in comments above)
# Section 2: Map the remaining bytes as follows:
#
#
#
#
BEGIN_MAP
0x00 - 0x7F = 0x0000 -
0x80 = 0x00D7
0x81 = 0x2212
0x82 = 0x2013
0x83 = 0x2014
0x84 = 0x2018
0x85 = 0x2019
0x86 = 0x2026
0x87 = 0x2022
0x88 = 0x00A9
0x89 = 0x00AE
0x8A = 0x2122
0x90 = 0x0965
0x91 = 0x0970
0xA1 = 0x0901
#0xA1+0xE9 = 0x0950
0xA2 = 0x0902
0xA3 = 0x0903
0xA4 = 0x0905
0xA5 = 0x0906
0xA6 = 0x0907
#0xA6+0xE9 = 0x090C
0xA7 = 0x0908
#0xA7+0xE9 = 0x0961
0xA8 = 0x0909
0xA9 = 0x090A
0xAA = 0x090B
#0xAA+0xE9 = 0x0960
0xAB = 0x090E
0xAC = 0x090F
0xAD = 0x0910
0xAE = 0x090D
0xAF = 0x0912
0xB0 = 0x0913
0xB1 = 0x0914
0xB2 = 0x0911
0xB3 = 0x0915
0xB4 = 0x0916
0xB5 = 0x0917
0xB6 = 0x0918
0xB7 = 0x0919
0xB8 = 0x091A
0xB9 = 0x091B
0xBA = 0x091C
0xBB = 0x091D
0xBC = 0x091E
0xBD = 0x091F
0xBE = 0x0920
0xBF = 0x0921
0xC0 = 0x0922
0xC1 = 0x0923
0xC2 = 0x0924
0xC3 = 0x0925
0xC4 = 0x0926
0xC5 = 0x0927
0xC6 = 0x0928
0xC7 = 0x0929
0xC8 = 0x092A
0xC9 = 0x092B
0xCA = 0x092C
0xCB = 0x092D
0xCC = 0x092E
0xCD = 0x092F
0xCE = 0x095F
0xCF = 0x0930
0xD0 = 0x0931
0xD1 = 0x0932
0xD2 = 0x0933
0xD3 = 0x0934
0xD4 = 0x0935
0xD5 = 0x0936
0xD6 = 0x0937
0xD7 = 0x0938
0xD8 = 0x0939
0xD9 = 0x200E
0xDA = 0x093E
0xDB = 0x093F
#0xDB+0xE9 = 0x0962
0xDC = 0x0940
#0xDC+0xE9 = 0x0963
0xDD = 0x0941
0xDE = 0x0942
0xDF = 0x0943
#0xDF+0xE9 = 0x0944
0xE0 = 0x0946
0xE1 = 0x0947
0xE2 = 0x0948
0xE3 = 0x0945
0xE4 = 0x094A
0xE5 = 0x094B
0xE6 = 0x094C
0xE7 = 0x0949
0xE8 = 0x094D
#0xE8+0xE8 = 0x094D+0x200C
#0xE8+0xE9 = 0x094D+0x200D
0xE9 = 0x093C
0xEA = 0x0964
#0xEA+0xE9 = 0x093D
0xF1 = 0x0966
0xF2 = 0x0967
0xF3 = 0x0968
0xF4 = 0x0969
0xF5 = 0x096A
0xF6 = 0x096B
0xF7 = 0x096C
0xF8 = 0x096D
0xF9 = 0x096E
0xFA = 0x096F
END_MAP