Content for TS 23.042 Word version: 19.0.0

B.1 Compression Language Context B.2 Punctuators B.3 Keyword Dictionaries B.4 Character Groups B.5 Huffman Initializations
...

B (Normative) English language parameters p. 49

B.1 Compression Language Context p. 49

CLC Value:

1 (decimal)

This specifies the following items as defaults:

1)	Language	English
2)	Character set	Character Set ID 2 (decimal) = Code page 437
3)	Punctuator ID	1 (decimal)
4)	Keyword Dictionary ID	0 (decimal)
5)	Character Group ID	1 (decimal)
6)	Huffman Initialization ID	1 (decimal)

B.2 Punctuators p. 49

Punctuator ID 0 (decimal)

This punctuator ID has the special meaning that no punctuator is defined (or therefore enabled) and the value of bit 2 of octet 1 of the CH is always to be interpreted as zero.

Punctuator ID 1 (decimal)

The punctuator is rendered in Character Set ID 2 (decimal) = Code Page 437.

The following characters have punctuator attributes set:

Table B.1: punctuator attributes set

Char	Value	PU-IWS	PU-LST	PU-WSF	PU-UCF	PU-UCW	PU-NSI
<LF>	010	0	0	0	1	0	0
<CR>	013	0	0	0	1	0	0
<SP>	032	1	0	0	0	0	0
!	033	0	0	1	1	0	0
,	044	0	0	1	0	0	0
.	046	0	1	1	1	0	0
0	048	0	0	0	0	0	1
1	049	0	0	0	0	0	1
2	050	0	0	0	0	0	1
3	051	0	0	0	0	0	1
4	052	0	0	0	0	0	1
5	053	0	0	0	0	0	1
6	054	0	0	0	0	0	1
7	055	0	0	0	0	0	1
8	056	0	0	0	0	0	1
9	057	0	0	0	0	0	1
:	058	0	0	1	0	0	0
;	059	0	0	1	0	0	0
?	063	0	0	1	1	0	0
I	073	0	0	0	0	1	0
NOTE: The characters "<SP>" are used to represent the "space" character, the characters "<LF>" the "line feed" character and "<CR>" the "carriage return" character.

Punctuator ID >1 (decimal)

No other punctuators are defined and all other values are reserved.

B.3 Keyword Dictionaries p. 50

Keyword Dictionary ID 0 (decimal)

This Keyword Dictionary ID has the special meaning that no Keyword Dictionary is defined (or therefore enabled) and the value of bit 1 of octet 1 of the CH is always to be interpreted as zero.

Keyword Dictionary ID 1 (decimal)

The Keyword Dictionary is rendered in Character Set ID 2 (decimal) = Code Page 437.

The Match Options value is 94 (decimal) indicating the following:

Partial matching is enabled.
Suffix matching is not enabled.
Prefix matching is enabled.
1st char upper case, remainder lower case matching is enabled.
Upper case matching is enabled.
Lower case matching is enabled.
Exact matching is not enabled.

The Keyword Prefix Length is 1 and the prefix string contains a single character with value 32 decimal (a space).

The Keyword Suffix Length is 0.

The Keyword Threshold value is 4.

The Maximum Partial Match Length value is 46 (decimal).

The Key Word Group List contains only 1 Key Word Group ID. The value of this Key Word Group ID is 0.

Keyword Dictionary ID >1 (decimal)

No other Keyword Dictionaries are defined and all other values are reserved.

Key Word Group ID 0 (decimal)

The entries within this Key Word Group are rendered in Character Set ID 2 (decimal) = Code Page 437.

The Number of Entries value is 128 (decimal).

The entries are defined in Table B.2 wherein the characters "<SP>" are used to represent the "space" character of decimal value 32.

Table B.2: Key Word Group ID 0 (decimal)

Entry ID	Entry Length	Entry String
1	5	About
2	9	Afternoon
3	5	Again
4	6	Agenda
5	6	Agreed
6	4	And<SP>
7	11	Appointment
8	4	Are<SP>
9	7	Arrange
10	6	Arrive
11	6	Attend
12	9	Available
13	4	Away
14	7	Because
15	6	Before
16	7	Benefit
17	8	Business
18	4	But<SP>
19	4	Call
20	6	Can't<SP>
21	6	Cancel
22	6	Commit
23	7	Company
24	8	Complete
25	7	Confirm
26	7	Contact
27	10	Convenient
28	5	Could
29	7	Deliver
30	6	Demand
31	10	Department
32	6	Dinner
33	7	Discuss
34	6	Don't<SP>
35	5	Exist
36	6	Flight
37	4	For<SP>
38	7	Forward
39	6	Friday
40	5	From<SP>
41	5	Going
42	7	Goodbye
43	8	Hardware
44	5	Have<SP>
45	4	Hear
46	5	Hello
47	4	Help
48	4	Home
49	5	Hotel
50	4	How<SP>
51	9	Immediate
52	9	Important
53	11	Information
54	4	Its<SP>
55	5	Later
56	6	Letter
57	7	Machine
58	5	Make<SP>
59	6	Manage
60	7	Meeting
61	7	Message
62	6	Mobile
63	6	Monday
64	7	Morning
65	5	Need<SP>
66	6	Office
67	5	Other
68	6	Passed
69	8	Personal
70	5	Phone
71	6	Please
72	8	Possible
73	4	Post
74	8	Postpone
75	5	Price
76	8	Priority
77	7	Product
78	7	Project
79	5	Quick
80	7	Receive
81	9	Reference
82	7	Regards
83	8	Remember
84	6	Return
85	4	Ring
86	8	Saturday
87	4	Send
88	7	Service
89	6	Should
90	5	Since
91	8	Software
92	4	Soon
93	5	Speak
94	5	Still
95	7	Subject
96	7	Success
97	6	Sunday
98	4	Talk
99	9	Telephone
100	5	Thank
101	4	That
102	4	The<SP>
103	5	Them<SP>
104	5	There
105	5	They<SP>
106	5	Think
107	4	This
108	8	Thursday
109	5	Today
110	8	Tomorrow
111	7	Tonight
112	5	Total
113	6	Travel
114	7	Tuesday
115	6	Until<SP>
116	6	Update
117	6	Urgent
118	5	Using
119	4	Want
120	9	Wednesday
121	7	Weekend
122	7	Welcome
123	5	When<SP>
124	6	Where<SP>
125	4	Will
126	5	Would
127	9	Yesterday
128	4	You<SP>

Key Word Group ID >0 (decimal)

No other Key Word Groups are defined and all other values are reserved.

B.4 Character Groups p. 54

Character Group ID 0 (decimal)

This Character Group ID has the special meaning that no Character Group is defined (or therefore enabled) and the value of bit 0 of octet 1 of the CH is always to be interpreted as zero.

Character Group ID 1 (decimal)

The Character Group is rendered in Character Set ID 2 (decimal) = Code Page 437.

The Number of Groups value is 3.

There are 2 Group Transition symbols used these have the decimal values 259 and 260. Their use in signalling transitions between the 3 groups are shown in the Table B.3.

Table B.3: Character Group ID 1 (decimal)

Current Group	New Group
Current Group	0	1	2
0		260	259
1	260		259
2	260	259

The fold tables and Group Membership bit flags are set out in the following Table B.4.

Table B.4: fold tables and Group Membership bit flags

Char	Value	Group 0 Fold Table	Group 1 Fold Table	Group 2 Fold Table	Group 2 Member	Group 1 Member	Group 0 Member
	012	034	012	012	1	0	0
<SP>	032	032	032	032	1	1	1
!	033	118	033	033	1	0	0
"	034	034	034	012	0	1	1
#	035	102	035	035	1	0	0
%	037	113	037	037	1	0	0
&	038	111	038	038	1	0	0
'	039	039	039	039	1	1	1
(	040	116	040	040	1	0	0
)	041	117	041	041	1	0	0
*	042	110	042	042	1	0	0
+	043	119	043	043	1	0	0
,	044	044	044	062	0	1	1
-	045	120	045	045	1	0	0
.	046	046	046	046	1	1	1
/	047	114	047	047	1	0	0
0	048	101	048	048	1	0	0
1	049	097	049	049	1	0	0
2	050	105	050	050	1	0	0
3	051	099	051	051	1	0	0
4	052	112	052	052	1	0	0
5	053	100	053	053	1	0	0
6	054	107	054	054	1	0	0
7	055	104	055	055	1	0	0
8	056	103	056	056	1	0	0
9	057	109	057	057	1	0	0
:	058	098	058	058	1	0	0
;	059	106	059	059	1	0	0
<	060	122	060	060	1	0	0
=	061	121	061	061	1	0	0
>	062	044	062	062	1	0	0
?	063	063	063	093	0	1	1
A	065	097	065	065	0	1	0
B	066	098	066	066	0	1	0
C	067	099	067	067	0	1	0
D	068	100	068	068	0	1	0
E	069	101	069	069	0	1	0
F	070	102	070	070	0	1	0
G	071	103	071	071	0	1	0
H	072	104	072	072	0	1	0
I	073	105	073	073	0	1	0
J	074	106	074	074	0	1	0
K	075	107	075	075	0	1	0
L	076	108	076	076	0	1	0
M	077	109	077	077	0	1	0
N	078	110	078	078	0	1	0
O	079	111	079	079	0	1	0
P	080	112	080	080	0	1	0
Q	081	113	081	081	0	1	0
R	082	114	082	082	0	1	0
S	083	115	083	083	0	1	0
T	084	116	084	084	0	1	0
U	085	117	085	085	0	1	0
V	086	118	086	086	0	1	0
W	087	119	087	087	0	1	0
X	088	120	088	088	0	1	0
Y	089	121	089	089	0	1	0
Z	090	122	090	090	0	1	0
[	091	108	091	091	1	0	0
]	093	063	093	093	1	0	0
a	097	097	065	049	0	0	1
b	098	098	066	058	0	0	1
c	099	099	067	051	0	0	1
d	100	100	068	053	0	0	1
e	101	101	069	048	0	0	1
f	102	102	070	035	0	0	1
g	103	103	071	056	0	0	1
h	104	104	072	055	0	0	1
i	105	105	073	050	0	0	1
j	106	106	074	059	0	0	1
k	107	107	075	054	0	0	1
l	108	108	076	091	0	0	1
m	109	109	077	057	0	0	1
n	110	110	078	042	0	0	1
o	111	111	079	038	0	0	1
p	112	112	080	052	0	0	1
q	113	113	081	037	0	0	1
r	114	114	082	047	0	0	1
s	115	115	083	156	0	0	1
t	116	116	084	040	0	0	1
u	117	117	085	041	0	0	1
v	118	118	086	033	0	0	1
w	119	119	087	043	0	0	1
x	120	120	088	045	0	0	1
y	121	121	089	061	0	0	1
z	122	122	090	060	0	0	1
£	156	115	156	156	1	0	0

Characters with any other value in the range 0 to 255 are not a member of any group and therefore the fold table values will be equal to the character value in all cases.

Character Group ID >1 (decimal)

No other Character Groups are defined and all other values are reserved.

B.5 Huffman Initializations p. 56

Huffman Initialization ID 0 (decimal)

The Huffman Initialization is rendered in Character Set ID 2 (decimal) = Code Page 437.

The Options value indicates that both character and control symbol updating are enabled.

As described is subclause 6.7.1, the tables below include initialization values for all control symbols that might occur in conjunction with the use of this Huffman Initialization. However, initialization values for control symbols that cannot occur for a particular use of this Huffman Initialization are identified as part of the Huffman initialization process and are not added to the Huffman tree as described in subclause 6.7.2.

The Character Group ID value is 1.

Character Group Processing is disabled:

The number of frequency initializations is 4.

The initial frequencies are:

Table B.5: Character Group Processing is disabled: initial frequencies

Symbol	Value	Frequency
New UCS2 Row	266	1
Keyword	258	1
New 8bit	257	1
New 7bit	256	1

Character Group Processing is enabled:

The number of frequency initializations is 6.

The initial frequencies are:

Table B.6: Character Group Processing is enabled: initial frequencies

Symbol	Value	Frequency
New UCS2 Row	266	1
Change CG1	260	1
Change CG0	259	1
Keyword	258	1
New 8bit	257	1
New 7bit	256	1

Huffman Initialization ID 1 (decimal)

The Huffman Initialization is rendered in Character Set ID 2 (decimal) = Code Page 437.

The Options value indicates that both character and control symbol updating are enabled.

The Character Group ID value is 1.

Character Group Processing is disabled:

The number of frequency initializations is 32.

The initial frequencies are:

Table B.7: Character Group Processing is disabled: initial frequencies

Symbol	Value	Frequency
New UCS2 Row	266	00001
z	122	00001
Keyword	258	00001
q	113	00001
j	106	00003
x	120	00003
New 7bit	256	00003
New 8bit	257	00003
v	118	00008
w	119	00010
b	098	00010
y	121	00011
f	102	00011
u	117	00012
.	046	00014
m	109	00016
g	103	00017
k	107	00017
h	104	00018
d	100	00024
p	112	00029
c	099	00029
i	105	00030
r	114	00038
l	108	00038
s	115	00040
n	110	00048
t	116	00050
o	111	00055
<SP>	032	00060
a	097	00066
e	101	00079

Character Group Processing is enabled:

The number of frequency initializations is 34.

The initial frequencies are:

Table B.8: Character Group Processing is enabled: initial frequencies

Symbol	Value	Frequency
New UCS2 Row	266	00001
Change CG1	260	00001
z	122	00001
Keyword	258	00001
q	113	00002
j	106	00003
x	120	00003
New 7bit	256	00003
New 8bit	257	00003
v	118	00008
w	119	00010
b	098	00010
Change CG0	259	00010
y	121	00011
f	102	00013
u	117	00013
.	046	00015
m	109	00017
g	103	00017
k	107	00019
h	104	00020
d	100	00026
p	112	00030
c	099	00030
i	105	00031
r	114	00040
l	108	00040
s	115	00045
n	110	00050
t	116	00053
o	111	00054
<SP>	032	00058
a	097	00064
e	101	00077

Note in the above Table, the characters "<SP>" are used to represent the "space" character.

Huffman Initialization ID >1 (decimal)

No other Huffman Initializations are defined and all other values are reserved.