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/share/i18n/csmapper/APPLE/UCS%GURMUKHI.src

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  1# $FreeBSD$
  2
  3TYPE		ROWCOL
  4NAME		UCS/GURMUKHI
  5SRC_ZONE	0x0000-0x2212
  6OOB_MODE	INVALID
  7DST_INVALID	0x100
  8DST_UNIT_BITS	16
  9#=======================================================================
 10#   File name:  GURMUKHI.TXT
 11#
 12#   Contents:   Map (external version) from Mac OS Gurmukhi
 13#               encoding to Unicode 2.1 and later.
 14#
 15#   Copyright:  (c) 1997-2002, 2005 by Apple Computer, Inc., all rights
 16#               reserved.
 17#
 18#   Contact:    charsets@apple.com
 19#
 20#   Changes:
 21#
 22#       c02  2005-Apr-05    Update header comments. Matches internal xml
 23#                           <c1.1> and Text Encoding Converter 2.0.
 24#      b3,c1 2002-Dec-19    Change mappings for 0x91, 0xD5 based on
 25#							new decomposition rules. Update URLs,
 26#                           notes. Matches internal utom<b2>.
 27#       b02  1999-Sep-22    Update contact e-mail address. Matches
 28#                           internal utom<b1>, ufrm<b1>, and Text
 29#                           Encoding Converter version 1.5.
 30#       n02  1998-Feb-05    First version; matches internal utom<n5>,
 31#                           ufrm<n6>.
 32#
 33# Standard header:
 34# ----------------
 35#
 36#   Apple, the Apple logo, and Macintosh are trademarks of Apple
 37#   Computer, Inc., registered in the United States and other countries.
 38#   Unicode is a trademark of Unicode Inc. For the sake of brevity,
 39#   throughout this document, "Macintosh" can be used to refer to
 40#   Macintosh computers and "Unicode" can be used to refer to the
 41#   Unicode standard.
 42#
 43#   Apple Computer, Inc. ("Apple") makes no warranty or representation,
 44#   either express or implied, with respect to this document and the
 45#   included data, its quality, accuracy, or fitness for a particular
 46#   purpose. In no event will Apple be liable for direct, indirect,
 47#   special, incidental, or consequential damages resulting from any
 48#   defect or inaccuracy in this document or the included data.
 49#
 50#   These mapping tables and character lists are subject to change.
 51#   The latest tables should be available from the following:
 52#
 53#   <http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/>
 54#
 55#   For general information about Mac OS encodings and these mapping
 56#   tables, see the file "README.TXT".
 57#
 58# Format:
 59# -------
 60#
 61#   Three tab-separated columns;
 62#   '#' begins a comment which continues to the end of the line.
 63#     Column #1 is the Mac OS Gurmukhi code or code sequence
 64#       (in hex as 0xNN or 0xNN+0xNN)
 65#     Column #2 is the corresponding Unicode or Unicode sequence
 66#       (in hex as 0xNNNN or 0xNNNN+0xNNNN).
 67#     Column #3 is a comment containing the Unicode name or sequence
 68#       of names. In some cases an additional comment follows the
 69#       Unicode name(s).
 70#
 71#   The entries are in two sections. The first section is for pairs of
 72#   Mac OS Gurmukhi code points that must be mapped in a special way.
 73#   The second section maps individual code points.
 74#
 75#   Within each section, the entries are in Mac OS Gurmukhi code order.
 76#
 77#   Control character mappings are not shown in this table, following
 78#   the conventions of the standard UTC mapping tables. However, the
 79#   Mac OS Gurmukhi character set uses the standard control characters
 80#   at 0x00-0x1F and 0x7F.
 81#
 82# Notes on Mac OS Gurmukhi:
 83# -------------------------
 84#
 85#   This is a legacy Mac OS encoding; in the Mac OS X Carbon and Cocoa
 86#   environments, it is only supported via transcoding to and from
 87#   Unicode.
 88#
 89#   Mac OS Gurmukhi is based on IS 13194:1991 (ISCII-91), with the
 90#   addition of several punctuation and symbol characters. However,
 91#   Mac OS Gurmukhi does not support the ATR (attribute) mechanism of
 92#   ISCII-91.
 93#
 94# 1. ISCII-91 features in Mac OS Gurmukhi include:
 95#
 96#  a) Explicit halant and soft halant
 97#
 98#     A double halant (0xE8 + 0xE8) constitutes an "explicit halant",
 99#     which will always appear as a halant instead of causing formation
100#     of a ligature or half-form consonant.
101#
102#     Halant followed by nukta (0xE8 + 0xE9) constitutes a "soft
103#     halant", which prevents formation of a ligature and instead
104#     retains the half-form of the first consonant.
105#
106#  b) Invisible consonant
107#
108#     The byte 0xD9 (called INV in ISCII-91) is an invisible consonant:
109#     It behaves like a consonant but has no visible appearance. It is
110#     intended to be used (often in combination with halant) to display
111#     dependent forms in isolation, such as the RA forms or consonant
112#     half-forms.
113#
114#  c) Extensions for Vedic, etc.
115#
116#     The byte 0xF0 (called EXT in ISCII-91) followed by any byte in
117#     the range 0xA1-0xEE constitutes a two-byte code point which can
118#     be used to represent additional characters for Vedic (or other
119#     extensions); 0xF0 followed by any other byte value constitutes
120#     malformed text. Mac OS Gurmukhi supports this mechanism, but
121#     does not currently map any of these two-byte code points to
122#     anything.
123#
124# 2. Mac OS Gurmukhi additions
125#
126#   Mac OS Gurmukhi adds characters using the code points
127#   0x80-0x8A and 0x90-0x94 (the latter are some Gurmukhi additions).
128#
129# 3. Unused code points
130#
131#   The following code points are currently unused, and are not shown
132#   here: 0x8B-0x8F, 0x95-0xA1, 0xA3, 0xAA-0xAB, 0xAE-0xAF, 0xB2,
133#   0xC7, 0xCE, 0xD0, 0xD2-0xD3, 0xD6, 0xDF-0xE0, 0xE3-0xE4, 0xE7,
134#   0xEB-0xEF, 0xFB-0xFF. In addition, 0xF0 is not shown here, but it
135#   has a special function as described above.
136#
137# Unicode mapping issues and notes:
138# ---------------------------------
139#
140# 1. Mapping the byte pairs
141#
142#   If the byte value 0xE8 is encountered when mapping Mac OS
143#   Gurmukhi text, then the next byte (if there is one) should be
144#   examined. If the next byte is 0xE8 or 0xE9, then the byte pair
145#   should be mapped using the first section of the mapping table
146#   below. Otherwise, each byte should be mapped using the second
147#   section of the mapping table below.
148#
149#   - The Unicode Standard, Version 2.0, specifies how explicit
150#     halant and soft halant should be represented in Unicode;
151#     these mappings are used below.
152#
153#   If the byte value 0xF0 is encountered when mapping Mac OS
154#   Gurmukhi text, then the next byte should be examined. If there
155#   is no next byte (e.g. 0xF0 at end of buffer), the mapping
156#   process should indicate incomplete character. If there is a next
157#   byte but it is not in the range 0xA1-0xEE, the mapping process
158#   should indicate malformed text. Otherwise, the mapping process
159#   should treat the byte pair as a valid two-byte code point with no
160#   mapping (e.g. map it to QUESTION MARK, REPLACEMENT CHARACTER,
161#   etc.).
162#
163# 2. Mapping the invisible consonant
164#
165#   It has been suggested that INV in ISCII-91 should map to ZERO
166#   WIDTH NON-JOINER in Unicode. However, this causes problems with
167#   roundtrip fidelity: The ISCII-91 sequences 0xE8+0xE8 and 0xE8+0xD9
168#   would map to the same sequence of Unicode characters. We have
169#   instead mapped INV to LEFT-TO-RIGHT MARK, which avoids these
170#   problems.
171#
172# 3. Mappings using corporate characters
173#
174#   Mapping the GURMUKHI LETTER SHA 0xD5 presents an interesting
175#   problem. At first glance, we could map it to the single Unicode
176#   character 0x0A36.
177#
178#   However, our goal is that the mappings provided here should also
179#   be able to generate the mappings to maximally decomposed Unicode
180#   by simple recursive substitution of the canonical decompositions
181#   in the Unicode database. We want mapping tables derived this way
182#   to retain full roundtrip fidelity.
183#
184#   Since the canonical decomposition of 0x0A36 is 0x0A38+0x0A3C,
185#   the decomposition mapping for 0xD5 would be identical with the
186#   decomposition mapping for 0xD7+0xE9, and roundtrip fidelity would
187#   be lost.
188#
189#   We solve this problem by using a grouping hint (one of the set of
190#   transcoding hints defined by Apple).
191#
192#   Apple has defined a block of 32 corporate characters as "transcoding
193#   hints." These are used in combination with standard Unicode characters
194#   to force them to be treated in a special way for mapping to other
195#   encodings; they have no other effect. Sixteen of these transcoding
196#   hints are "grouping hints" - they indicate that the next 2-4 Unicode
197#   characters should be treated as a single entity for transcoding. The
198#   other sixteen transcoding hints are "variant tags" - they are like
199#   combining characters, and can follow a standard Unicode (or a sequence
200#   consisting of a base character and other combining characters) to
201#   cause it to be treated in a special way for transcoding. These always
202#   terminate a combining-character sequence.
203#
204#   The transcoding coding hint used in this mapping table is:
205#     0xF860 group next 2 characters
206#
207#   Then we can map 0x91 as follows:
208#     0xD5 -> 0xF860+0x0A38+0x0A3C
209#
210#   We could also have used a variant tag such as 0xF87F and mapped it
211#   this way:
212#     0xD5 -> 0x0A36+0xF87F
213#
214# 4. Additional loose mappings from Unicode
215#
216#   These are not preserved in roundtrip mappings.
217#
218#   0A59 -> 0xB4+0xE9   # GURMUKHI LETTER KHHA
219#   0A5A -> 0xB5+0xE9   # GURMUKHI LETTER GHHA
220#   0A5B -> 0xBA+0xE9   # GURMUKHI LETTER ZA
221#   0A5E -> 0xC9+0xE9   # GURMUKHI LETTER FA
222#
223#   0A70 -> 0xA2    # GURMUKHI TIPPI
224#
225#   Loose mappings from Unicode should also map U+0A71 (GURMUKHI ADDAK)
226#   followed by any Gurmukhi consonant to the equivalent ISCII-91
227#   consonant plus halant plus the consonant again. For example:
228#
229#   0A71+0A15 -> 0xB3+0xE8+0xB3
230#   0A71+0A16 -> 0xB4+0xE8+0xB4
231#   ...
232#
233# Details of mapping changes in each version:
234# -------------------------------------------
235#
236#   Changes from version b02 to version b03/c01:
237#
238#   - Change mapping of 0x91 from 0xF860+0x0A21+0x0A3C to 0x0A5C GURMUKHI
239#     LETTER RRA, now that the canonical decomposition of 0x0A5C to
240#     0x0A21+0x0A3C has been deleted
241#
242#   - Change mapping of 0xD5 from 0x0A36 GURMUKHI LETTER SHA to
243#     0xF860+0x0A38+0x0A3C, now that a canonical decomposition of 0x0A36
244#     to 0x0A38+0x0A3C has been added.
245#
246##################
247BEGIN_MAP
2480x0000 - 0x007F = 0x00 -
2490x00A9 = 0x88
2500x00AE = 0x89
2510x00D7 = 0x80
2520x0964 = 0xEA
2530x0A02 = 0xA2
2540x0A05 = 0xA4
2550x0A06 = 0xA5
2560x0A07 = 0xA6
2570x0A08 = 0xA7
2580x0A09 = 0xA8
2590x0A0A = 0xA9
2600x0A0F = 0xAC
2610x0A10 = 0xAD
2620x0A13 = 0xB0
2630x0A14 = 0xB1
2640x0A15 = 0xB3
2650x0A16 = 0xB4
2660x0A17 = 0xB5
2670x0A18 = 0xB6
2680x0A19 = 0xB7
2690x0A1A = 0xB8
2700x0A1B = 0xB9
2710x0A1C = 0xBA
2720x0A1D = 0xBB
2730x0A1E = 0xBC
2740x0A1F = 0xBD
2750x0A20 = 0xBE
2760x0A21 = 0xBF
2770x0A22 = 0xC0
2780x0A23 = 0xC1
2790x0A24 = 0xC2
2800x0A25 = 0xC3
2810x0A26 = 0xC4
2820x0A27 = 0xC5
2830x0A28 = 0xC6
2840x0A2A = 0xC8
2850x0A2B = 0xC9
2860x0A2C = 0xCA
2870x0A2D = 0xCB
2880x0A2E = 0xCC
2890x0A2F = 0xCD
2900x0A30 = 0xCF
2910x0A32 = 0xD1
2920x0A35 = 0xD4
2930x0A38 = 0xD7
2940x0A39 = 0xD8
2950x0A3C = 0xE9
2960x0A3E = 0xDA
2970x0A3F = 0xDB
2980x0A40 = 0xDC
2990x0A41 = 0xDD
3000x0A42 = 0xDE
3010x0A47 = 0xE1
3020x0A48 = 0xE2
3030x0A4B = 0xE5
3040x0A4C = 0xE6
3050x0A4D = 0xE8
306#0x0A4D+0x200C = 0xE8+0xE8
307#0x0A4D+0x200D = 0xE8+0xE9
3080x0A5C = 0x91
3090x0A66 = 0xF1
3100x0A67 = 0xF2
3110x0A68 = 0xF3
3120x0A69 = 0xF4
3130x0A6A = 0xF5
3140x0A6B = 0xF6
3150x0A6C = 0xF7
3160x0A6D = 0xF8
3170x0A6E = 0xF9
3180x0A6F = 0xFA
3190x0A71 = 0x90
3200x0A72 = 0x93
3210x0A73 = 0x92
3220x0A74 = 0x94
3230x200E = 0xD9
3240x2013 = 0x82
3250x2014 = 0x83
3260x2018 = 0x84
3270x2019 = 0x85
3280x2022 = 0x87
3290x2026 = 0x86
3300x2122 = 0x8A
3310x2212 = 0x81
332#0xF860+0x0A38+0x0A3C = 0xD5
333END_MAP