draft-ietf-precis-framework-17.txt   draft-ietf-precis-framework-18.txt 
PRECIS P. Saint-Andre PRECIS P. Saint-Andre
Internet-Draft &yet Internet-Draft &yet
Obsoletes: 3454 (if approved) M. Blanchet Obsoletes: 3454 (if approved) M. Blanchet
Intended status: Standards Track Viagenie Intended status: Standards Track Viagenie
Expires: November 28, 2014 May 27, 2014 Expires: March 6, 2015 September 2, 2014
PRECIS Framework: Preparation and Comparison of Internationalized PRECIS Framework: Preparation and Comparison of Internationalized
Strings in Application Protocols Strings in Application Protocols
draft-ietf-precis-framework-17 draft-ietf-precis-framework-18
Abstract Abstract
Application protocols using Unicode characters in protocol strings Application protocols using Unicode characters in protocol strings
need to properly prepare such strings in order to perform valid need to properly prepare such strings in order to perform valid
comparison operations (e.g., for purposes of authentication or comparison operations (e.g., for purposes of authentication or
authorization). This document defines a framework enabling authorization). This document defines a framework enabling
application protocols to perform the preparation and comparison of application protocols to perform the preparation and comparison of
internationalized strings ("PRECIS") in a way that depends on the internationalized strings ("PRECIS") in a way that depends on the
properties of Unicode characters and thus is agile with respect to properties of Unicode characters and thus is agile with respect to
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on November 28, 2014. This Internet-Draft will expire on March 6, 2015.
Copyright Notice Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the Copyright (c) 2014 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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4.1.1. Width Mapping . . . . . . . . . . . . . . . . . . . . 11 4.1.1. Width Mapping . . . . . . . . . . . . . . . . . . . . 11
4.1.2. Additional Mappings . . . . . . . . . . . . . . . . . 12 4.1.2. Additional Mappings . . . . . . . . . . . . . . . . . 12
4.1.3. Case Mapping . . . . . . . . . . . . . . . . . . . . 12 4.1.3. Case Mapping . . . . . . . . . . . . . . . . . . . . 12
4.1.4. Normalization . . . . . . . . . . . . . . . . . . . . 12 4.1.4. Normalization . . . . . . . . . . . . . . . . . . . . 12
4.1.5. Directionality . . . . . . . . . . . . . . . . . . . 12 4.1.5. Directionality . . . . . . . . . . . . . . . . . . . 12
4.1.6. Exclusions . . . . . . . . . . . . . . . . . . . . . 13 4.1.6. Exclusions . . . . . . . . . . . . . . . . . . . . . 13
4.2. Building Application-Layer Constructs . . . . . . . . . . 13 4.2. Building Application-Layer Constructs . . . . . . . . . . 13
4.3. A Note about Spaces . . . . . . . . . . . . . . . . . . . 14 4.3. A Note about Spaces . . . . . . . . . . . . . . . . . . . 14
5. Order of Operations . . . . . . . . . . . . . . . . . . . . . 14 5. Order of Operations . . . . . . . . . . . . . . . . . . . . . 14
6. Code Point Properties . . . . . . . . . . . . . . . . . . . . 15 6. Code Point Properties . . . . . . . . . . . . . . . . . . . . 15
7. Category Definitions Used to Calculate Derived Property . . . 17 7. Category Definitions Used to Calculate Derived Property . . . 18
7.1. LetterDigits (A) . . . . . . . . . . . . . . . . . . . . 17 7.1. LetterDigits (A) . . . . . . . . . . . . . . . . . . . . 18
7.2. Unstable (B) . . . . . . . . . . . . . . . . . . . . . . 18 7.2. Unstable (B) . . . . . . . . . . . . . . . . . . . . . . 18
7.3. IgnorableProperties (C) . . . . . . . . . . . . . . . . . 18 7.3. IgnorableProperties (C) . . . . . . . . . . . . . . . . . 19
7.4. IgnorableBlocks (D) . . . . . . . . . . . . . . . . . . . 18 7.4. IgnorableBlocks (D) . . . . . . . . . . . . . . . . . . . 19
7.5. LDH (E) . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.5. LDH (E) . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.6. Exceptions (F) . . . . . . . . . . . . . . . . . . . . . 18 7.6. Exceptions (F) . . . . . . . . . . . . . . . . . . . . . 19
7.7. BackwardCompatible (G) . . . . . . . . . . . . . . . . . 20 7.7. BackwardCompatible (G) . . . . . . . . . . . . . . . . . 19
7.8. JoinControl (H) . . . . . . . . . . . . . . . . . . . . . 21 7.8. JoinControl (H) . . . . . . . . . . . . . . . . . . . . . 19
7.9. OldHangulJamo (I) . . . . . . . . . . . . . . . . . . . . 21 7.9. OldHangulJamo (I) . . . . . . . . . . . . . . . . . . . . 20
7.10. Unassigned (J) . . . . . . . . . . . . . . . . . . . . . 21 7.10. Unassigned (J) . . . . . . . . . . . . . . . . . . . . . 20
7.11. ASCII7 (K) . . . . . . . . . . . . . . . . . . . . . . . 22 7.11. ASCII7 (K) . . . . . . . . . . . . . . . . . . . . . . . 20
7.12. Controls (L) . . . . . . . . . . . . . . . . . . . . . . 22 7.12. Controls (L) . . . . . . . . . . . . . . . . . . . . . . 20
7.13. PrecisIgnorableProperties (M) . . . . . . . . . . . . . . 22 7.13. PrecisIgnorableProperties (M) . . . . . . . . . . . . . . 20
7.14. Spaces (N) . . . . . . . . . . . . . . . . . . . . . . . 22 7.14. Spaces (N) . . . . . . . . . . . . . . . . . . . . . . . 21
7.15. Symbols (O) . . . . . . . . . . . . . . . . . . . . . . . 23 7.15. Symbols (O) . . . . . . . . . . . . . . . . . . . . . . . 21
7.16. Punctuation (P) . . . . . . . . . . . . . . . . . . . . . 23 7.16. Punctuation (P) . . . . . . . . . . . . . . . . . . . . . 21
7.17. HasCompat (Q) . . . . . . . . . . . . . . . . . . . . . . 23 7.17. HasCompat (Q) . . . . . . . . . . . . . . . . . . . . . . 21
7.18. OtherLetterDigits (R) . . . . . . . . . . . . . . . . . . 23 7.18. OtherLetterDigits (R) . . . . . . . . . . . . . . . . . . 21
8. Calculation of the Derived Property . . . . . . . . . . . . . 23 8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 21
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 25 8.1. PRECIS Derived Property Value Registry . . . . . . . . . 21
9.1. PRECIS Derived Property Value Registry . . . . . . . . . 25 8.2. PRECIS Base Classes Registry . . . . . . . . . . . . . . 22
9.2. PRECIS Base Classes Registry . . . . . . . . . . . . . . 25 8.3. PRECIS Profiles Registry . . . . . . . . . . . . . . . . 22
9.3. PRECIS Profiles Registry . . . . . . . . . . . . . . . . 26 9. Security Considerations . . . . . . . . . . . . . . . . . . . 24
10. Security Considerations . . . . . . . . . . . . . . . . . . . 27 9.1. General Issues . . . . . . . . . . . . . . . . . . . . . 24
10.1. General Issues . . . . . . . . . . . . . . . . . . . . . 27 9.2. Use of the IdentifierClass . . . . . . . . . . . . . . . 25
10.2. Use of the IdentifierClass . . . . . . . . . . . . . . . 28 9.3. Use of the FreeformClass . . . . . . . . . . . . . . . . 25
10.3. Use of the FreeformClass . . . . . . . . . . . . . . . . 28 9.4. Local Character Set Issues . . . . . . . . . . . . . . . 26
10.4. Local Character Set Issues . . . . . . . . . . . . . . . 29 9.5. Visually Similar Characters . . . . . . . . . . . . . . . 26
10.5. Visually Similar Characters . . . . . . . . . . . . . . 29 9.6. Security of Passwords . . . . . . . . . . . . . . . . . . 28
10.6. Security of Passwords . . . . . . . . . . . . . . . . . 31 10. Interoperability Considerations . . . . . . . . . . . . . . . 29
11. Interoperability Considerations . . . . . . . . . . . . . . . 32 11. References . . . . . . . . . . . . . . . . . . . . . . . . . 29
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 32 11.1. Normative References . . . . . . . . . . . . . . . . . . 29
12.1. Normative References . . . . . . . . . . . . . . . . . . 32 11.2. Informative References . . . . . . . . . . . . . . . . . 30
12.2. Informative References . . . . . . . . . . . . . . . . . 33 11.3. URIs . . . . . . . . . . . . . . . . . . . . . . . . . . 32
12.3. URIs . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Appendix A. Acknowledgements . . . . . . . . . . . . . . . . . . 32
Appendix A. Codepoint Table . . . . . . . . . . . . . . . . . . 35 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 33
Appendix B. Acknowledgements . . . . . . . . . . . . . . . . . . 66
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 66
1. Introduction 1. Introduction
As described in the problem statement for the preparation and As described in the problem statement for the preparation and
comparison of internationalized strings ("PRECIS") [RFC6885], many comparison of internationalized strings ("PRECIS") [RFC6885], many
IETF protocols have used the Stringprep framework [RFC3454] as the IETF protocols have used the Stringprep framework [RFC3454] as the
basis for preparing and comparing protocol strings that contain basis for preparing and comparing protocol strings that contain
Unicode characters [Unicode6.3] outside the ASCII range [RFC20]. The Unicode characters [Unicode7.0] outside the ASCII range [RFC20]. The
Stringprep framework was developed during work on the original Stringprep framework was developed during work on the original
technology for internationalized domain names (IDNs), here called technology for internationalized domain names (IDNs), here called
"IDNA2003" [RFC3490], and Nameprep [RFC3491] was the Stringprep "IDNA2003" [RFC3490], and Nameprep [RFC3491] was the Stringprep
profile for IDNs. At the time, Stringprep was designed as a general profile for IDNs. At the time, Stringprep was designed as a general
framework so that other application protocols could define their own framework so that other application protocols could define their own
Stringprep profiles for the preparation and comparison of strings and Stringprep profiles for the preparation and comparison of strings and
identifiers. Indeed, a number of application protocols defined such identifiers. Indeed, a number of application protocols defined such
profiles. profiles.
After the publication of [RFC3454] in 2002, several significant After the publication of [RFC3454] in 2002, several significant
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this more uniform set of string classes, it is also expected that this more uniform set of string classes, it is also expected that
copy/paste operations between software implementing different copy/paste operations between software implementing different
application protocols will be more predictable and coherent. application protocols will be more predictable and coherent.
Although this framework is similar to IDNA2008 and borrows some of Although this framework is similar to IDNA2008 and borrows some of
the character categories defined in [RFC5892], it defines additional the character categories defined in [RFC5892], it defines additional
character categories to meet the needs of common application character categories to meet the needs of common application
protocols. protocols.
The character categories and calculation rules defined under The character categories and calculation rules defined under
Section 7 and Section 8 are normative and apply to all Unicode code Section 7 and Section 6 are normative and apply to all Unicode code
points. The code point table provided under Appendix A is non- points. The code point table that results from applying the
normative and merely shows, for illustrative purposes, the character categories and calculation rules to the latest version of
consequences of the character categories and calculation rules, as Unicode are provided in an IANA registry.
well as the resulting property values.
2. Terminology 2. Terminology
Many important terms used in this document are defined in [RFC5890], Many important terms used in this document are defined in [RFC5890],
[RFC6365], [RFC6885], and [Unicode6.3]. The terms "left-to-right" [RFC6365], [RFC6885], and [Unicode7.0]. The terms "left-to-right"
(LTR) and "right-to-left" (RTL) are defined in Unicode Standard Annex (LTR) and "right-to-left" (RTL) are defined in Unicode Standard Annex
#9 [UAX9]. #9 [UAX9].
As of the date of writing, the version of Unicode published by the As of the date of writing, the version of Unicode published by the
Unicode Consortium is 6.3 [Unicode6.3]; however, PRECIS is not tied Unicode Consortium is 6.3 [Unicode7.0]; however, PRECIS is not tied
to a specific version of Unicode. The latest version of Unicode is to a specific version of Unicode. The latest version of Unicode is
always available [UnicodeCurrent]. always available [UnicodeCurrent].
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in "OPTIONAL" in this document are to be interpreted as described in
[RFC2119]. [RFC2119].
3. String Classes 3. String Classes
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FreeformClass: a sequence of letters, numbers, symbols, spaces, and FreeformClass: a sequence of letters, numbers, symbols, spaces, and
other characters that is used for free-form strings, including other characters that is used for free-form strings, including
passwords as well as display elements such as human-friendly passwords as well as display elements such as human-friendly
nicknames in chatrooms; the intent is that this class will allow nicknames in chatrooms; the intent is that this class will allow
nearly any Unicode character, with the result that expressiveness nearly any Unicode character, with the result that expressiveness
has been prioritized over safety for this class (e.g., protocol has been prioritized over safety for this class (e.g., protocol
designers, application developers, service providers, and end designers, application developers, service providers, and end
users might not understand or be able to enter all of the users might not understand or be able to enter all of the
characters that can be included in the FreeformClass - see characters that can be included in the FreeformClass - see
Section 10.3 for details). Section 9.3 for details).
Future specifications might define additional PRECIS string classes, Future specifications might define additional PRECIS string classes,
such as a class that falls somewhere between the IdentifierClass and such as a class that falls somewhere between the IdentifierClass and
the FreeformClass. At this time, it is not clear how useful such a the FreeformClass. At this time, it is not clear how useful such a
class would be. In any case, because application developers are able class would be. In any case, because application developers are able
to define profiles of PRECIS string classes, a protocol needing a to define profiles of PRECIS string classes, a protocol needing a
construct between the IdentiferClass and the FreeformClass could construct between the IdentiferClass and the FreeformClass could
define a restricted profile of the FreeformClass if needed. define a restricted profile of the FreeformClass if needed.
The following subsections discuss the IdentifierClass and The following subsections discuss the IdentifierClass and
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3.3. FreeformClass 3.3. FreeformClass
Some application technologies need strings that can be used in a Some application technologies need strings that can be used in a
free-form way, e.g., as a password in an authentication exchange (see free-form way, e.g., as a password in an authentication exchange (see
[I-D.ietf-precis-saslprepbis]) or a nickname in a chatroom (see [I-D.ietf-precis-saslprepbis]) or a nickname in a chatroom (see
[I-D.ietf-precis-nickname]). We group such things into a class [I-D.ietf-precis-nickname]). We group such things into a class
called "FreeformClass" having the following features. called "FreeformClass" having the following features.
Security Warning: As mentioned, the FreeformClass prioritizes Security Warning: As mentioned, the FreeformClass prioritizes
expressiveness over safety; Section 10.3 describes some of the expressiveness over safety; Section 9.3 describes some of the
security hazards involved with using or profiling the security hazards involved with using or profiling the
FreeformClass. FreeformClass.
Security Warning: Consult Section 10.6 for relevant security Security Warning: Consult Section 9.6 for relevant security
considerations when strings conforming to the FreeformClass, or a considerations when strings conforming to the FreeformClass, or a
profile thereof, are used as passwords. profile thereof, are used as passwords.
3.3.1. Valid 3.3.1. Valid
o Traditional letters and numbers, i.e., the LetterDigits ("A") o Traditional letters and numbers, i.e., the LetterDigits ("A")
category first defined in [RFC5892] and listed here under category first defined in [RFC5892] and listed here under
Section 7.1. Section 7.1.
o Letters and digits other than the "traditional" letters and digits o Letters and digits other than the "traditional" letters and digits
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FreeformClass. A profile of a PRECIS string class MUST define the FreeformClass. A profile of a PRECIS string class MUST define the
width mapping, additional mappings (if any), case mapping, width mapping, additional mappings (if any), case mapping,
normalization, directionality, and exclusion rules. A profile MAY normalization, directionality, and exclusion rules. A profile MAY
also restrict the allowable characters above and beyond the also restrict the allowable characters above and beyond the
definition of the relevant PRECIS string class (but MUST NOT add as definition of the relevant PRECIS string class (but MUST NOT add as
valid any code points or character categories that are disallowed by valid any code points or character categories that are disallowed by
the relevant PRECIS string class). These matters are discussed in the relevant PRECIS string class). These matters are discussed in
the following subsections. the following subsections.
Profiles of the PRECIS string classes are registered with the IANA as Profiles of the PRECIS string classes are registered with the IANA as
described under Section 9.3. The naming convention for profile names described under Section 8.3. Profile names use the following
is that they of the form "ProfilenameBaseClass", where the convention: they are of the form "ProfilenameBaseClass", where the
"Profilename" string is a differentiator and "BaseClass" is the name "Profilename" string is a differentiator and "BaseClass" is the name
of the PRECIS string class being profiled; for example, the profile of the PRECIS string class being profiled; for example, the profile
of the IdentifierClass used for localparts of Jabber IDs in the of the IdentifierClass used for localparts of Jabber Identifiers
Extensible Messaging and Presence Protocol (XMPP) is named (JIDs) in the Extensible Messaging and Presence Protocol (XMPP) is
"JIDlocalIdentifierClass" [I-D.ietf-xmpp-6122bis]. named "JIDlocalIdentifierClass" [I-D.ietf-xmpp-6122bis].
4.1.1. Width Mapping 4.1.1. Width Mapping
The width mapping rule of a profile specifies whether width mapping The width mapping rule of a profile specifies whether width mapping
is performed on fullwidth and halfwidth characters, and how the is performed on fullwidth and halfwidth characters, and how the
mapping is done. Typically such mapping consists of mapping mapping is done. Typically such mapping consists of mapping
fullwidth and halfwidth characters, i.e., code points with a fullwidth and halfwidth characters, i.e., code points with a
Decomposition Type of Wide or Narrow, to their decomposition Decomposition Type of Wide or Narrow, to their decomposition
mappings; as an example, FULLWIDTH DIGIT ZERO (U+FF10) would be mappings; as an example, FULLWIDTH DIGIT ZERO (U+FF10) would be
mapped to DIGIT ZERO (U+0030). mapped to DIGIT ZERO (U+0030).
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4.1.3. Case Mapping 4.1.3. Case Mapping
The case mapping rule of a profile specifies whether case mapping is The case mapping rule of a profile specifies whether case mapping is
performed (instead of case preservation) on uppercase and titlecase performed (instead of case preservation) on uppercase and titlecase
characters, and how the mapping is done (e.g., mapping uppercase and characters, and how the mapping is done (e.g., mapping uppercase and
titlecase characters to their lowercase equivalents). titlecase characters to their lowercase equivalents).
If case mapping is desired (instead of case preservation), it is If case mapping is desired (instead of case preservation), it is
RECOMMENDED to use Unicode Default Case Folding as defined in Chapter RECOMMENDED to use Unicode Default Case Folding as defined in Chapter
3 of the Unicode Standard [Unicode6.3]. 3 of the Unicode Standard [Unicode7.0].
Note: Unicode Default Case Folding is not designed to handle Note: Unicode Default Case Folding is not designed to handle
various localization issues (such as so-called "dotless i" in various localization issues (such as so-called "dotless i" in
several Turkic languages). The PRECIS mappings document several Turkic languages). The PRECIS mappings document
[I-D.ietf-precis-mappings] describes these issues in greater [I-D.ietf-precis-mappings] describes these issues in greater
detail and defines a "local case mapping" method that handles some detail and defines a "local case mapping" method that handles some
locale-dependent and context-dependent mappings. locale-dependent and context-dependent mappings.
In order to maximize entropy and minimize the potential for false In order to maximize entropy and minimize the potential for false
positives, it is NOT RECOMMENDED for application protocols to map positives, it is NOT RECOMMENDED for application protocols to map
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math symbols) that are included in the relevant PRECIS string math symbols) that are included in the relevant PRECIS string
class. class.
As a result of such exclusions, code points that are defined as valid As a result of such exclusions, code points that are defined as valid
for the PRECIS string class being profiled will be defined as for the PRECIS string class being profiled will be defined as
disallowed for the profile. disallowed for the profile.
4.2. Building Application-Layer Constructs 4.2. Building Application-Layer Constructs
Sometimes, an application-layer construct does not map in a Sometimes, an application-layer construct does not map in a
straightforward manner to one of the PRECIS string classes or a straightforward manner to one of the base string classes or a profile
profile thereof. Consider, for example, the "simple user name" thereof. Consider, for example, the "simple user name" construct in
construct in the Simple Authentication and Security Layer (SASL) the Simple Authentication and Security Layer (SASL) [RFC4422].
[RFC4422]. Depending on the deployment, a simple user name might Depending on the deployment, a simple user name might take the form
take the form of a user's full name (e.g., the user's personal name of a user's full name (e.g., the user's personal name followed by a
followed by a space and then the user's family name). Such a simple space and then the user's family name). Such a simple user name
user name cannot be defined as an instance of the IdentifierClass or cannot be defined as an instance of the IdentifierClass or a profile
a profile thereof, since space characters are not allowed in the thereof, since space characters are not allowed in the
IdentifierClass; however, it could be defined using a space-separated IdentifierClass; however, it could be defined using a space-separated
sequence of IdentifierClass instances, as in the following pseudo- sequence of IdentifierClass instances, as in the following pseudo-
ABNF [RFC5234]: ABNF [RFC5234]:
fullname = namepart *(1*SP namepart) fullname = namepart *(1*SP namepart)
namepart = 1*idpoint namepart = 1*idpoint
; ;
; an "idpoint" is a UTF-8 encoded Unicode code point ; an "idpoint" is a UTF-8 encoded Unicode code point
; that conforms to the PRECIS IdentifierClass ; that conforms to the PRECIS IdentifierClass
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1. Reviews and classifies the collections of code points in the 1. Reviews and classifies the collections of code points in the
Unicode character set by examining various code point properties. Unicode character set by examining various code point properties.
2. Defines an algorithm for determining a derived property value, 2. Defines an algorithm for determining a derived property value,
which can vary depending on the string class being used by the which can vary depending on the string class being used by the
relevant application protocol. relevant application protocol.
This document is not intended to specify precisely how derived This document is not intended to specify precisely how derived
property values are to be applied in protocol strings. That property values are to be applied in protocol strings. That
information is the responsibility of the protocol specification that information is the responsibility of the protocol specification that
uses or profiles a PRECIS string class from this document. uses or profiles a PRECIS string class from this document. The value
of the property is to be interpreted as follows.
The value of the property is to be interpreted as follows.
PROTOCOL VALID Those code points that are allowed to be used in any PROTOCOL VALID Those code points that are allowed to be used in any
PRECIS string class (currently, IdentifierClass and PRECIS string class (currently, IdentifierClass and
FreeformClass). Code points with this property value are FreeformClass). Code points with this property value are
permitted for general use in any string class. The abbreviated permitted for general use in any string class. The abbreviated
term "PVALID" is used to refer to this value in the remainder of term "PVALID" is used to refer to this value in the remainder of
this document. this document.
SPECIFIC CLASS PROTOCOL VALID Those code points that are allowed to SPECIFIC CLASS PROTOCOL VALID Those code points that are allowed to
be used in specific string classes. Code points with this be used in specific string classes. Code points with this
skipping to change at page 16, line 5 skipping to change at page 16, line 4
PROTOCOL VALID Those code points that are allowed to be used in any PROTOCOL VALID Those code points that are allowed to be used in any
PRECIS string class (currently, IdentifierClass and PRECIS string class (currently, IdentifierClass and
FreeformClass). Code points with this property value are FreeformClass). Code points with this property value are
permitted for general use in any string class. The abbreviated permitted for general use in any string class. The abbreviated
term "PVALID" is used to refer to this value in the remainder of term "PVALID" is used to refer to this value in the remainder of
this document. this document.
SPECIFIC CLASS PROTOCOL VALID Those code points that are allowed to SPECIFIC CLASS PROTOCOL VALID Those code points that are allowed to
be used in specific string classes. Code points with this be used in specific string classes. Code points with this
property value are permitted for use in specific string classes. property value are permitted for use in specific string classes.
In the remainder of this document, the abbreviated term *_PVAL is In the remainder of this document, the abbreviated term *_PVAL is
used, where * = (ID | FREE), i.e., either "FREE_PVAL" or used, where * = (ID | FREE), i.e., either "FREE_PVAL" or
"ID_PVAL". "ID_PVAL". In practice, the derived property ID_PVAL is not used
in this specification, since every ID_PVAL code point is PVALID.
CONTEXTUAL RULE REQUIRED Some characteristics of the character, such CONTEXTUAL RULE REQUIRED Some characteristics of the character, such
as its being invisible in certain contexts or problematic in as its being invisible in certain contexts or problematic in
others, require that it not be used in labels unless specific others, require that it not be used in labels unless specific
other characters or properties are present. As in IDNA2008, there other characters or properties are present. As in IDNA2008, there
are two subdivisions of CONTEXTUAL RULE REQUIRED, the first for are two subdivisions of CONTEXTUAL RULE REQUIRED, the first for
Join_controls (called "CONTEXTJ") and the second for other Join_controls (called "CONTEXTJ") and the second for other
characters (called "CONTEXTO"). A character with the derived characters (called "CONTEXTO"). A character with the derived
property value CONTEXTJ or CONTEXTO MUST NOT be used unless an property value CONTEXTJ or CONTEXTO MUST NOT be used unless an
appropriate rule has been established and the context of the appropriate rule has been established and the context of the
skipping to change at page 16, line 32 skipping to change at page 16, line 33
Appendix A of [RFC5892] for more information. Appendix A of [RFC5892] for more information.
DISALLOWED Those code points that are not permitted in any PRECIS DISALLOWED Those code points that are not permitted in any PRECIS
string class. string class.
SPECIFIC CLASS DISALLOWED Those code points that are not to be SPECIFIC CLASS DISALLOWED Those code points that are not to be
included in a specific string class. Code points with this included in a specific string class. Code points with this
property value are not permitted in one of the string classes but property value are not permitted in one of the string classes but
might be permitted in others. In the remainder of this document, might be permitted in others. In the remainder of this document,
the abbreviated term *_DIS is used, where * = (ID | FREE), i.e., the abbreviated term *_DIS is used, where * = (ID | FREE), i.e.,
either "FREE_DIS" or "ID_DIS". either "FREE_DIS" or "ID_DIS". In practice, the derived property
FREE_DIS is not used in this specification, since every FREE_DIS
code point is DISALLOWED.
UNASSIGNED Those code points that are not designated (i.e. are UNASSIGNED Those code points that are not designated (i.e. are
unassigned) in the Unicode Standard. unassigned) in the Unicode Standard.
To summarize, the assigned values of the derived property are:
o PVALID
o FREE_PVAL
o CONTEXTJ
o CONTEXTO
o DISALLOWED
o UNASSIGNED
The algorithm to calculate the value of the derived property is as
follows:
If .cp. .in. Exceptions Then Exceptions(cp);
Else If .cp. .in. BackwardCompatible Then BackwardCompatible(cp);
Else If .cp. .in. Unassigned Then UNASSIGNED;
Else If .cp. .in. ASCII7 Then PVALID;
Else If .cp. .in. JoinControl Then CONTEXTJ;
Else If .cp. .in. OldHangulJamo Then DISALLOWED;
Else If .cp. .in. PrecisIgnorableProperties Then DISALLOWED;
Else If .cp. .in. Controls Then DISALLOWED;
Else If .cp. .in. HasCompat Then ID_DIS or FREE_PVAL;
Else If .cp. .in. LetterDigits Then PVALID;
Else If .cp. .in. OtherLetterDigits Then ID_DIS or FREE_PVAL;
Else If .cp. .in. Spaces Then ID_DIS or FREE_PVAL;
Else If .cp. .in. Symbols Then ID_DIS or FREE_PVAL;
Else If .cp. .in. Punctuation Then ID_DIS or FREE_PVAL;
Else DISALLOWED;
The value of the derived property calculated can depend on the string
class; for example, if an identifier used in an application protocol
is defined as profiling the PRECIS IdentifierClass then a space
character such as U+0020 would be assigned to ID_DIS, whereas if an
identifier is defined as profiling the PRECIS FreeformClass then the
character would be assigned to FREE_PVAL. For the sake of brevity,
the designation "FREE_PVAL" is used in the code point tables, instead
of the longer designation "ID_DIS or FREE_PVAL". In practice, the
derived properties ID_PVAL and FREE_DIS are not used in this
specification, since every ID_PVAL code point is PVALID and every
FREE_DIS code point is DISALLOWED.
Use of the name of a rule (such as "Exceptions") implies the set of
code points that the rule defines, whereas the same name as a
function call (such as "Exceptions(cp)") implies the value that the
code point has in the Exceptions table.
The mechanisms described here allow determination of the value of the The mechanisms described here allow determination of the value of the
property for future versions of Unicode (including characters added property for future versions of Unicode (including characters added
after Unicode 5.2 or 6.3 depending on the category, since some after Unicode 5.2 or 7.0 depending on the category, since some
categories in this document are reused from IDNA2008 and therefore categories in this document are reused from IDNA2008 and therefore
were defined at the time of Unicode 5.2). Changes in Unicode were defined at the time of Unicode 5.2). Changes in Unicode
properties that do not affect the outcome of this process therefore properties that do not affect the outcome of this process therefore
do not affect this framework. For example, a character can have its do not affect this framework. For example, a character can have its
Unicode General_Category value (see Chapter 4 of the Unicode Standard Unicode General_Category value (see Chapter 4 of the Unicode Standard
[Unicode6.3]) change from So to Sm, or from Lo to Ll, without [Unicode7.0]) change from So to Sm, or from Lo to Ll, without
affecting the algorithm results. Moreover, even if such changes were affecting the algorithm results. Moreover, even if such changes were
to result, the BackwardCompatible list (Section 7.7) can be adjusted to result, the BackwardCompatible list (Section 7.7) can be adjusted
to ensure the stability of the results. to ensure the stability of the results.
7. Category Definitions Used to Calculate Derived Property 7. Category Definitions Used to Calculate Derived Property
The derived property obtains its value based on a two-step procedure: The derived property obtains its value based on a two-step procedure:
1. Characters are placed in one or more character categories either 1. Characters are placed in one or more character categories either
(1) based on core properties defined by the Unicode Standard or (1) based on core properties defined by the Unicode Standard or
(2) by treating the code point as an exception and addressing the (2) by treating the code point as an exception and addressing the
code point based on its code point value. These categories are code point based on its code point value. These categories are
not mutually exclusive. not mutually exclusive.
2. Set operations are used with these categories to determine the 2. Set operations are used with these categories to determine the
values for a property specific to a given string class. These values for a property specific to a given string class. These
operations are specified under Section 8. operations are specified under Section 6.
Note: Unicode property names and property value names might have Note: Unicode property names and property value names might have
short abbreviations, such as "gc" for the General_Category short abbreviations, such as "gc" for the General_Category
property and "Ll" for the Lowercase_Letter property value of the property and "Ll" for the Lowercase_Letter property value of the
gc property. gc property.
In the following specification of character categories, the operation In the following specification of character categories, the operation
that returns the value of a particular Unicode character property for that returns the value of a particular Unicode character property for
a code point is designated by using the formal name of that property a code point is designated by using the formal name of that property
(from the Unicode PropertyAliases.txt [1]) followed by '(cp)' for (from the Unicode PropertyAliases.txt [1]) followed by '(cp)' for
skipping to change at page 17, line 42 skipping to change at page 18, line 42
for IDNA2008 and are copied directly from [RFC5892] to ease the for IDNA2008 and are copied directly from [RFC5892] to ease the
understanding of how PRECIS handles various characters. Some of understanding of how PRECIS handles various characters. Some of
these categories are reused in PRECIS and some of them are not; these categories are reused in PRECIS and some of them are not;
however, the lettering of categories is retained to prevent overlap however, the lettering of categories is retained to prevent overlap
and to ease implementation of both IDNA2008 and PRECIS in a single and to ease implementation of both IDNA2008 and PRECIS in a single
software application. The next eight categories (K-R) are specific software application. The next eight categories (K-R) are specific
to PRECIS. to PRECIS.
7.1. LetterDigits (A) 7.1. LetterDigits (A)
Note: This category is defined in [RFC5892] and copied here for use This category is defined in Secton 2.1 of [RFC5892] and is included
in PRECIS. by reference for use in PRECIS.
################## BEGIN DEFINITION FROM RFC 5892 ##################
A: General_Category(cp) is in {Ll, Lu, Lm, Lo, Mn, Mc, Nd}
These rules identify characters commonly used in mnemonics and often
informally described as "language characters".
For more information, see Chapter 4 of the Unicode Standard
[Unicode6.3].
The categories used in this rule are:
o Ll - Lowercase_Letter
o Lu - Uppercase_Letter
o Lm - Modifier_Letter
o Lo - Other_Letter
o Mn - Nonspacing_Mark
o Mc - Spacing_Mark
o Nd - Decimal_Number
################### END DEFINITION FROM RFC 5892 ###################
7.2. Unstable (B) 7.2. Unstable (B)
Note: This category is defined in [RFC5892] but not used in PRECIS. This category is defined in Secton 2.2 of [RFC5892] but not used in
PRECIS.
7.3. IgnorableProperties (C) 7.3. IgnorableProperties (C)
Note: This category is defined in [RFC5892] but not used in PRECIS. This category is defined in Secton 2.3 of [RFC5892] but not used in
See the "PrecisIgnorableProperties (M)" category below for a more PRECIS.
inclusive category used in PRECIS identifiers.
Note: See the "PrecisIgnorableProperties (M)" category below for a
more inclusive category used in PRECIS identifiers.
7.4. IgnorableBlocks (D) 7.4. IgnorableBlocks (D)
Note: This category is defined in [RFC5892] but not used in PRECIS. This category is defined in Secton 2.4 of [RFC5892] but not used in
PRECIS.
7.5. LDH (E) 7.5. LDH (E)
Note: This category is defined in [RFC5892] but not used in PRECIS. This category is defined in Secton 2.5 of [RFC5892] but not used in
See the "ASCII7 (K)" category below for a more inclusive category PRECIS.
used in PRECIS identifiers.
7.6. Exceptions (F)
Note: This category is defined in [RFC5892] and used in PRECIS to
ensure consistent treatment of the relevant code points.
################## BEGIN DEFINITION FROM RFC 5892 ##################
F: cp is in {00B7, 00DF, 0375, 03C2, 05F3, 05F4, 0640, 0660,
0661, 0662, 0663, 0664, 0665, 0666, 0667, 0668,
0669, 06F0, 06F1, 06F2, 06F3, 06F4, 06F5, 06F6,
06F7, 06F8, 06F9, 06FD, 06FE, 07FA, 0F0B, 3007,
302E, 302F, 3031, 3032, 3033, 3034, 3035, 303B,
30FB}
This category explicitly lists code points for which the category
cannot be assigned using only the core property values that exist in
the Unicode Standard. The values are according to the table below:
PVALID -- Would otherwise have been DISALLOWED
00DF; PVALID # LATIN SMALL LETTER SHARP S
03C2; PVALID # GREEK SMALL LETTER FINAL SIGMA
06FD; PVALID # ARABIC SIGN SINDHI AMPERSAND
06FE; PVALID # ARABIC SIGN SINDHI POSTPOSITION MEN
0F0B; PVALID # TIBETAN MARK INTERSYLLABIC TSHEG
3007; PVALID # IDEOGRAPHIC NUMBER ZERO
CONTEXTO -- Would otherwise have been DISALLOWED
00B7; CONTEXTO # MIDDLE DOT
0375; CONTEXTO # GREEK LOWER NUMERAL SIGN (KERAIA)
05F3; CONTEXTO # HEBREW PUNCTUATION GERESH
05F4; CONTEXTO # HEBREW PUNCTUATION GERSHAYIM
30FB; CONTEXTO # KATAKANA MIDDLE DOT
CONTEXTO -- Would otherwise have been PVALID
0660; CONTEXTO # ARABIC-INDIC DIGIT ZERO
0661; CONTEXTO # ARABIC-INDIC DIGIT ONE
0662; CONTEXTO # ARABIC-INDIC DIGIT TWO
0663; CONTEXTO # ARABIC-INDIC DIGIT THREE
0664; CONTEXTO # ARABIC-INDIC DIGIT FOUR
0665; CONTEXTO # ARABIC-INDIC DIGIT FIVE
0666; CONTEXTO # ARABIC-INDIC DIGIT SIX
0667; CONTEXTO # ARABIC-INDIC DIGIT SEVEN
0668; CONTEXTO # ARABIC-INDIC DIGIT EIGHT
0669; CONTEXTO # ARABIC-INDIC DIGIT NINE
06F0; CONTEXTO # EXTENDED ARABIC-INDIC DIGIT ZERO
06F1; CONTEXTO # EXTENDED ARABIC-INDIC DIGIT ONE
06F2; CONTEXTO # EXTENDED ARABIC-INDIC DIGIT TWO
06F3; CONTEXTO # EXTENDED ARABIC-INDIC DIGIT THREE
06F4; CONTEXTO # EXTENDED ARABIC-INDIC DIGIT FOUR
06F5; CONTEXTO # EXTENDED ARABIC-INDIC DIGIT FIVE
06F6; CONTEXTO # EXTENDED ARABIC-INDIC DIGIT SIX
06F7; CONTEXTO # EXTENDED ARABIC-INDIC DIGIT SEVEN
06F8; CONTEXTO # EXTENDED ARABIC-INDIC DIGIT EIGHT
06F9; CONTEXTO # EXTENDED ARABIC-INDIC DIGIT NINE
DISALLOWED -- Would otherwise have been PVALID Note: See the "ASCII7 (K)" category below for a more inclusive
category used in PRECIS identifiers.
0640; DISALLOWED # ARABIC TATWEEL 7.6. Exceptions (F)
07FA; DISALLOWED # NKO LAJANYALAN
302E; DISALLOWED # HANGUL SINGLE DOT TONE MARK
302F; DISALLOWED # HANGUL DOUBLE DOT TONE MARK
3031; DISALLOWED # VERTICAL KANA REPEAT MARK
3032; DISALLOWED # VERTICAL KANA REPEAT WITH VOICED SOUND MARK
3033; DISALLOWED # VERTICAL KANA REPEAT MARK UPPER HALF
3034; DISALLOWED # VERTICAL KANA REPEAT WITH VOICED SOUND MARK
UPPER HA
3035; DISALLOWED # VERTICAL KANA REPEAT MARK LOWER HALF
303B; DISALLOWED # VERTICAL IDEOGRAPHIC ITERATION MARK
################### END DEFINITION FROM RFC 5892 ################### This category is defined in Secton 2.6 of [RFC5892] and is included
by reference for use in PRECIS.
7.7. BackwardCompatible (G) 7.7. BackwardCompatible (G)
Note: This category is defined in [RFC5892] and copied here for use This category is defined in Secton 2.7 of [RFC5892] and is included
in PRECIS. Because of how the PRECIS string classes are defined, by reference for use in PRECIS.
only changes that would result in code points being added to or
removed from the LetterDigits ("A") category would result in
backward-incompatible modifications to code point assignments.
Therefore, management of this category is handled via the processes
specified in [RFC5892]. At the time of this writing (and also at the
time that RFC 5892 was published), this category consisted of the
empty set; however, that is subject to change as described in RFC
5892.
################## BEGIN DEFINITION FROM RFC 5892 ##################
G: cp is in {}
This category includes the code points for which property values in
versions of Unicode after 5.2 have changed in such a way that the
derived property value would no longer be PVALID or DISALLOWED. If
changes are made to future versions of Unicode so that code points
might change property value from PVALID or DISALLOWED, then this
table can be updated and keep special exception values so that the
property values for code points stay stable.
################### END DEFINITION FROM RFC 5892 ################### Note: Because of how the PRECIS string classes are defined, only
changes that would result in code points being added to or removed
from the LetterDigits ("A") category would result in backward-
incompatible modifications to code point assignments. Therefore,
management of this category is handled via the processes specified in
[RFC5892]. At the time of this writing (and also at the time that
RFC 5892 was published), this category consisted of the empty set;
however, that is subject to change as described in RFC 5892.
7.8. JoinControl (H) 7.8. JoinControl (H)
Note: This category is defined in [RFC5892] and copied here for use This category is defined in Secton 2.8 of [RFC5892] and is included
in PRECIS. by reference for use in PRECIS.
################## BEGIN DEFINITION FROM RFC 5892 ##################
H: Join_Control(cp) = True
This category consists of Join Control characters (i.e., they are not
in LetterDigits (Section 7.1) but are still required in strings under
some circumstances).
################### END DEFINITION FROM RFC 5892 ###################
7.9. OldHangulJamo (I) 7.9. OldHangulJamo (I)
Note: This category is defined in [RFC5892] and copied here for use This category is defined in Secton 2.9 of [RFC5892] and is included
in PRECIS. by reference for use in PRECIS.
################## BEGIN DEFINITION FROM RFC 5892 ##################
I: Hangul_Syllable_Type(cp) is in {L, V, T}
This category consists of all conjoining Hangul Jamo (Leading Jamo,
Vowel Jamo, and Trailing Jamo).
Elimination of conjoining Hangul Jamos from the set of PVALID
characters results in restricting the set of Korean PVALID characters
just to preformed, modern Hangul syllable characters. Old Hangul
syllables, which are spelled with sequences of conjoining Hangul
Jamos, are not PVALID for string classes.
################### END DEFINITION FROM RFC 5892 ###################
7.10. Unassigned (J) 7.10. Unassigned (J)
Note: This category is defined in [RFC5892] and copied here for use This category is defined in Secton 2.10 of [RFC5892] and is included
in PRECIS. by reference for use in PRECIS.
################## BEGIN DEFINITION FROM RFC 5892 ##################
J: General_Category(cp) is in {Cn} and
Noncharacter_Code_Point(cp) = False
This category consists of code points in the Unicode character set
that are not (yet) designated. Implementers might want to keep in
mind that the Unicode Standard distinguishes between 'unassigned code
points' and 'unassigned characters'. The unassigned code points are
all but (Cn - Noncharacters), whereas the unassigned characters are
all but (Cn + Cs).
################### END DEFINITION FROM RFC 5892 ###################
7.11. ASCII7 (K) 7.11. ASCII7 (K)
This PRECIS-specific category consists of all printable, non-space This PRECIS-specific category consists of all printable, non-space
characters from the 7-bit ASCII range. By applying this category, characters from the 7-bit ASCII range. By applying this category,
the algorithm specified under Section 8 exempts these characters from the algorithm specified under Section 6 exempts these characters from
other rules that might be applied during PRECIS processing, on the other rules that might be applied during PRECIS processing, on the
assumption that these code points are in such wide use that assumption that these code points are in such wide use that
disallowing them would be counter-productive. disallowing them would be counter-productive.
K: cp is in {0021..007E} K: cp is in {0021..007E}
7.12. Controls (L) 7.12. Controls (L)
L: Control(cp) = True L: Control(cp) = True
7.13. PrecisIgnorableProperties (M) 7.13. PrecisIgnorableProperties (M)
This PRECIS-specific category is used to group code points that are This PRECIS-specific category is used to group code points that are
discouraged from use in PRECIS string classes. discouraged from use in PRECIS string classes.
M: Default_Ignorable_Code_Point(cp) = True or M: Default_Ignorable_Code_Point(cp) = True or
Noncharacter_Code_Point(cp) = True Noncharacter_Code_Point(cp) = True
The definition for Default_Ignorable_Code_Point can be found in the The definition for Default_Ignorable_Code_Point can be found in the
DerivedCoreProperties.txt [2] file, and at the time of Unicode 6.3 is DerivedCoreProperties.txt [2] file, and at the time of Unicode 7.0 is
as follows: as follows:
Other_Default_Ignorable_Code_Point Other_Default_Ignorable_Code_Point
+ Cf (Format characters) + Cf (Format characters)
+ Variation_Selector + Variation_Selector
- White_Space - White_Space
- FFF9..FFFB (Annotation Characters) - FFF9..FFFB (Annotation Characters)
- 0600..0604, 06DD, 070F, 110BD (exceptional Cf characters - 0600..0604, 06DD, 070F, 110BD (exceptional Cf characters
that should be visible) that should be visible)
skipping to change at page 23, line 23 skipping to change at page 21, line 30
This PRECIS-specific category is used to group code points that are This PRECIS-specific category is used to group code points that are
punctuation characters. punctuation characters.
P: General_Category(cp) is in {Pc, Pd, Ps, Pe, Pi, Pf, Po} P: General_Category(cp) is in {Pc, Pd, Ps, Pe, Pi, Pf, Po}
7.17. HasCompat (Q) 7.17. HasCompat (Q)
This PRECIS-specific category is used to group code points that have This PRECIS-specific category is used to group code points that have
compatibility equivalents as explained in Chapter 2 and Chapter 3 of compatibility equivalents as explained in Chapter 2 and Chapter 3 of
the Unicode Standard [Unicode6.3]. the Unicode Standard [Unicode7.0].
Q: toNFKC(cp) != cp Q: toNFKC(cp) != cp
The toNFKC() operation returns the code point in normalization form The toNFKC() operation returns the code point in normalization form
KC. For more information, see Section 5 of Unicode Standard Annex KC. For more information, see Section 5 of Unicode Standard Annex
#15 [UAX15]. #15 [UAX15].
7.18. OtherLetterDigits (R) 7.18. OtherLetterDigits (R)
This PRECIS-specific category is used to group code points that are This PRECIS-specific category is used to group code points that are
letters and digits other than the "traditional" letters and digits letters and digits other than the "traditional" letters and digits
grouped under the LetterDigits (A) class (see Section 7.1). grouped under the LetterDigits (A) class (see Section 7.1).
R: General_Category(cp) is in {Lt, Nl, No, Me} R: General_Category(cp) is in {Lt, Nl, No, Me}
8. Calculation of the Derived Property 8. IANA Considerations
Possible values of the derived property are:
o PVALID
o ID_PVAL
o FREE_PVAL
o CONTEXTJ
o CONTEXTO
o DISALLOWED
o ID_DIS
o FREE_DIS
o UNASSIGNED
Note: The value of the derived property calculated can depend on
the string class; for example, if an identifier used in an
application protocol is defined as profiling the PRECIS
IdentifierClass then a space character such as U+0020 would be
assigned to ID_DIS, whereas if an identifier is defined as
profiling the PRECIS FreeformClass then the character would be
assigned to FREE_PVAL. For the sake of brevity, the designation
"FREE_PVAL" is used in the code point tables, instead of the
longer designation "ID_DIS or FREE_PVAL". In practice, the
derived properties ID_PVAL and FREE_DIS are not used in this
specification, since every ID_PVAL code point is PVALID and every
FREE_DIS code point is DISALLOWED.
The algorithm to calculate the value of the derived property is as
follows:
If .cp. .in. Exceptions Then Exceptions(cp);
Else If .cp. .in. BackwardCompatible Then BackwardCompatible(cp);
Else If .cp. .in. Unassigned Then UNASSIGNED;
Else If .cp. .in. ASCII7 Then PVALID;
Else If .cp. .in. JoinControl Then CONTEXTJ;
Else If .cp. .in. OldHangulJamo Then DISALLOWED;
Else If .cp. .in. PrecisIgnorableProperties Then DISALLOWED;
Else If .cp. .in. Controls Then DISALLOWED;
Else If .cp. .in. HasCompat Then ID_DIS or FREE_PVAL;
Else If .cp. .in. LetterDigits Then PVALID;
Else If .cp. .in. OtherLetterDigits Then ID_DIS or FREE_PVAL;
Else If .cp. .in. Spaces Then ID_DIS or FREE_PVAL;
Else If .cp. .in. Symbols Then ID_DIS or FREE_PVAL;
Else If .cp. .in. Punctuation Then ID_DIS or FREE_PVAL;
Else DISALLOWED;
Note: Use of the name of a rule (such as "Exceptions") implies the
set of code points that the rule defines, whereas the same name as a
function call (such as "Exceptions(cp)") implies the value that the
code point has in the Exceptions table.
9. IANA Considerations
9.1. PRECIS Derived Property Value Registry 8.1. PRECIS Derived Property Value Registry
IANA is requested to create a PRECIS-specific registry with the IANA is requested to create a PRECIS-specific registry with the
Derived Properties for the versions of Unicode that are released Derived Properties for the versions of Unicode that are released
after (and including) version 6.3. The derived property value is to after (and including) version 7.0. The derived property value is to
be calculated in cooperation with a designated expert [RFC5226] be calculated in cooperation with a designated expert [RFC5226]
according to the rules specified under Section 7 and Section 8, not according to the rules specified under Section 7 and Section 6.
by copying the non-normative table found under Appendix A.
The IESG is to be notified if backward-incompatible changes to the The IESG is to be notified if backward-incompatible changes to the
table of derived properties are discovered or if other problems arise table of derived properties are discovered or if other problems arise
during the process of creating the table of derived property values during the process of creating the table of derived property values
or during expert review. Changes to the rules defined under or during expert review. Changes to the rules defined under
Section 7 and Section 8 require IETF Review. Section 7 and Section 6 require IETF Review.
9.2. PRECIS Base Classes Registry 8.2. PRECIS Base Classes Registry
IANA is requested to create a registry of PRECIS string classes. In IANA is requested to create a registry of PRECIS string classes. In
accordance with [RFC5226], the registration policy is "RFC Required". accordance with [RFC5226], the registration policy is "RFC Required".
The registration template is as follows: The registration template is as follows:
Base Class: [the name of the PRECIS string class] Base Class: [the name of the PRECIS string class]
Description: [a brief description of the PRECIS string class and its Description: [a brief description of the PRECIS string class and its
intended use, e.g., "A sequence of letters, numbers, and symbols intended use, e.g., "A sequence of letters, numbers, and symbols
skipping to change at page 26, line 5 skipping to change at page 22, line 44
[Note to RFC Editor: please change "this document" [Note to RFC Editor: please change "this document"
to the RFC number issued for this specification.] to the RFC number issued for this specification.]
Base Class: IdentifierClass. Base Class: IdentifierClass.
Description: A sequence of letters, numbers, and symbols that is Description: A sequence of letters, numbers, and symbols that is
used to identify or address a network entity. used to identify or address a network entity.
Specification: Section 3.2 of this document. Specification: Section 3.2 of this document.
[Note to RFC Editor: please change "this document" [Note to RFC Editor: please change "this document"
to the RFC number issued for this specification.] to the RFC number issued for this specification.]
9.3. PRECIS Profiles Registry 8.3. PRECIS Profiles Registry
IANA is requested to create a registry of profiles that use the IANA is requested to create a registry of profiles that use the
PRECIS string classes. In accordance with [RFC5226], the PRECIS string classes. In accordance with [RFC5226], the
registration policy is "Expert Review". This policy was chosen in registration policy is "Expert Review". This policy was chosen in
order to ease the burden of registration while ensuring that order to ease the burden of registration while ensuring that
"customers" of PRECIS receive appropriate guidance regarding the "customers" of PRECIS receive appropriate guidance regarding the
sometimes complex and subtle internationalization issues related to sometimes complex and subtle internationalization issues related to
profiles of PRECIS string classes. profiles of PRECIS string classes.
The registration template is as follows: The registration template is as follows:
skipping to change at page 27, line 40 skipping to change at page 24, line 31
the intended use? the intended use?
o Does the profile explain which entities enforce the rules, and o Does the profile explain which entities enforce the rules, and
when such enforcement occurs during protocol operations? when such enforcement occurs during protocol operations?
o Does the profile reduce the degree to which human users could be o Does the profile reduce the degree to which human users could be
surprised or confused by application behavior (the "principle of surprised or confused by application behavior (the "principle of
least user surprise")? least user surprise")?
o Does the profile introduce any new security concerns such as those o Does the profile introduce any new security concerns such as those
described under Section 10 of this document (e.g., false positives described under Section 9 of this document (e.g., false positives
for authentication or authorization)? for authentication or authorization)?
10. Security Considerations 9. Security Considerations
10.1. General Issues 9.1. General Issues
If input strings that appear "the same" to users are programmatically If input strings that appear "the same" to users are programmatically
considered to be distinct in different systems, or if input strings considered to be distinct in different systems, or if input strings
that appear distinct to users are programmatically considered to be that appear distinct to users are programmatically considered to be
"the same" in different systems, then users can be confused. Such "the same" in different systems, then users can be confused. Such
confusion can have security implications, such as the false positives confusion can have security implications, such as the false positives
and false negatieves discussed in [RFC6943]. One starting goal of and false negatieves discussed in [RFC6943]. One starting goal of
work on the PRECIS framework was to limit the number of times that work on the PRECIS framework was to limit the number of times that
users are confused (consistent with the "principle of least users are confused (consistent with the "principle of least
astonishment"). Unfortunately, this goal has been difficult to astonishment"). Unfortunately, this goal has been difficult to
skipping to change at page 28, line 32 skipping to change at page 25, line 23
string is connected to the wrong account or online resource based on string is connected to the wrong account or online resource based on
different interpretations of the string. different interpretations of the string.
Specifications of application protocols that use this framework are Specifications of application protocols that use this framework are
strongly encouraged to describe how internationalized strings are strongly encouraged to describe how internationalized strings are
used in the protocol, including the security implications of any used in the protocol, including the security implications of any
false positives and false negatives that might result from various false positives and false negatives that might result from various
comparison operations. For some helpful guidelines, refer to comparison operations. For some helpful guidelines, refer to
[RFC6943], [RFC5890], [UTR36], and [UTS39]. [RFC6943], [RFC5890], [UTR36], and [UTS39].
10.2. Use of the IdentifierClass 9.2. Use of the IdentifierClass
Strings that conform to the IdentifierClass and any profile thereof Strings that conform to the IdentifierClass and any profile thereof
are intended to be relatively safe for use in a broad range of are intended to be relatively safe for use in a broad range of
applications, primarily because they include only letters, digits, applications, primarily because they include only letters, digits,
and "grandfathered" non-space characters from the ASCII range; thus and "grandfathered" non-space characters from the ASCII range; thus
they exclude spaces, characters with compatibility equivalents, and they exclude spaces, characters with compatibility equivalents, and
almost all symbols and punctuation marks. However, because such almost all symbols and punctuation marks. However, because such
strings can still include so-called confusable characters (see strings can still include so-called confusable characters (see
Section 10.5), protocol designers and implementers are encouraged to Section 9.5), protocol designers and implementers are encouraged to
pay close attention to the security considerations described pay close attention to the security considerations described
elsewhere in this document. elsewhere in this document.
10.3. Use of the FreeformClass 9.3. Use of the FreeformClass
Strings that conform to the FreeformClass and many profiles thereof Strings that conform to the FreeformClass and many profiles thereof
can include virtually any Unicode character. This makes the can include virtually any Unicode character. This makes the
FreeformClass quite expressive, but also problematic from the FreeformClass quite expressive, but also problematic from the
perspective of possible user confusion. Protocol designers are perspective of possible user confusion. Protocol designers are
hereby warned that the FreeformClass contains codepoints they might hereby warned that the FreeformClass contains codepoints they might
not understand, and are encouraged to profile the IdentifierClass not understand, and are encouraged to profile the IdentifierClass
wherever feasible; however, if an application protocol requires more wherever feasible; however, if an application protocol requires more
code points than are allowed by the IdentifierClass, protocol code points than are allowed by the IdentifierClass, protocol
designers are encouraged to define a profile of the FreeformClass designers are encouraged to define a profile of the FreeformClass
that restricts the allowable code points as tightly as possible. that restricts the allowable code points as tightly as possible.
(The PRECIS Working Group considered the option of allowing (The PRECIS Working Group considered the option of allowing
superclasses as well as profiles of PRECIS string classes, but superclasses as well as profiles of PRECIS string classes, but
decided against allowing superclasses to reduce the likelihood of decided against allowing superclasses to reduce the likelihood of
security and interoperability problems.) security and interoperability problems.)
10.4. Local Character Set Issues 9.4. Local Character Set Issues
When systems use local character sets other than ASCII and Unicode, When systems use local character sets other than ASCII and Unicode,
this specification leaves the problem of converting between the local this specification leaves the problem of converting between the local
character set and Unicode up to the application or local system. If character set and Unicode up to the application or local system. If
different applications (or different versions of one application) different applications (or different versions of one application)
implement different rules for conversions among coded character sets, implement different rules for conversions among coded character sets,
they could interpret the same name differently and contact different they could interpret the same name differently and contact different
application servers or other network entities. This problem is not application servers or other network entities. This problem is not
solved by security protocols, such as Transport Layer Security (TLS) solved by security protocols, such as Transport Layer Security (TLS)
[RFC5246] and the Simple Authentication and Security Layer (SASL) [RFC5246] and the Simple Authentication and Security Layer (SASL)
[RFC4422], that do not take local character sets into account. [RFC4422], that do not take local character sets into account.
10.5. Visually Similar Characters 9.5. Visually Similar Characters
Some characters are visually similar and thus can cause confusion Some characters are visually similar and thus can cause confusion
among humans. Such characters are often called "confusable among humans. Such characters are often called "confusable
characters" or "confusables". characters" or "confusables".
The problem of confusable characters is not necessarily caused by the The problem of confusable characters is not necessarily caused by the
use of Unicode code points outside the ASCII range. For example, in use of Unicode code points outside the ASCII range. For example, in
some presentations and to some individuals the string "ju1iet" some presentations and to some individuals the string "ju1iet"
(spelled with DIGIT ONE, U+0031, as the third character) might appear (spelled with DIGIT ONE, U+0031, as the third character) might appear
to be the same as "juliet" (spelled with LATIN SMALL LETTER L, to be the same as "juliet" (spelled with LATIN SMALL LETTER L,
skipping to change at page 31, line 24 skipping to change at page 28, line 15
existence of such communities and encourages due caution when existence of such communities and encourages due caution when
presenting unfamiliar scripts or characters to human users.) presenting unfamiliar scripts or characters to human users.)
The challenges inherent in supporting the full range of Unicode code The challenges inherent in supporting the full range of Unicode code
points have in the past led some to hope for a way to points have in the past led some to hope for a way to
programmatically negotiate more restrictive ranges based on locale, programmatically negotiate more restrictive ranges based on locale,
script, or other relevant factors, to tag the locale associated with script, or other relevant factors, to tag the locale associated with
a particular string, etc. As a general-purpose internationalization a particular string, etc. As a general-purpose internationalization
technology, the PRECIS framework does not include such mechanisms. technology, the PRECIS framework does not include such mechanisms.
10.6. Security of Passwords 9.6. Security of Passwords
Two goals of passwords are to maximize the amount of entropy and to Two goals of passwords are to maximize the amount of entropy and to
minimize the potential for false positives. These goals can be minimize the potential for false positives. These goals can be
achieved in part by allowing a wide range of code points and by achieved in part by allowing a wide range of code points and by
ensuring that passwords are handled in such a way that code points ensuring that passwords are handled in such a way that code points
are not compared aggressively. Therefore, it is NOT RECOMMENDED for are not compared aggressively. Therefore, it is NOT RECOMMENDED for
application protocols to profile the FreeformClass for use in application protocols to profile the FreeformClass for use in
passwords in a way that removes entire categories (e.g., by passwords in a way that removes entire categories (e.g., by
disallowing symbols or punctuation). Furthermore, it is NOT disallowing symbols or punctuation). Furthermore, it is NOT
RECOMMENDED for application protocols to map uppercase and titlecase RECOMMENDED for application protocols to map uppercase and titlecase
skipping to change at page 32, line 16 skipping to change at page 29, line 8
is used. is used.
In protocols that provide passwords as input to a cryptographic In protocols that provide passwords as input to a cryptographic
algorithm such as a hash function, the client will need to perform algorithm such as a hash function, the client will need to perform
proper preparation of the password before applying the algorithm, proper preparation of the password before applying the algorithm,
since the password is not available to the server in plaintext form. since the password is not available to the server in plaintext form.
Further discussion of password handling can be found in Further discussion of password handling can be found in
[I-D.ietf-precis-saslprepbis]. [I-D.ietf-precis-saslprepbis].
11. Interoperability Considerations 10. Interoperability Considerations
Although strings that are consumed in PRECIS-based application Although strings that are consumed in PRECIS-based application
protocols are often encoded using UTF-8 [RFC3629], the exact encoding protocols are often encoded using UTF-8 [RFC3629], the exact encoding
is a matter for the application protocol that uses PRECIS, not for is a matter for the application protocol that uses PRECIS, not for
the PRECIS framework. the PRECIS framework.
It is known that some existing systems are unable to support the full It is known that some existing systems are unable to support the full
Unicode character set, or even any characters outside the ASCII Unicode character set, or even any characters outside the ASCII
range. If two (or more) applications need to interoperate when range. If two (or more) applications need to interoperate when
exchanging data (e.g., for the purpose of authenticating a username exchanging data (e.g., for the purpose of authenticating a username
or password), they will naturally need to have in common at least one or password), they will naturally need to have in common at least one
coded character set (as defined by [RFC6365]). Establishing such a coded character set (as defined by [RFC6365]). Establishing such a
baseline is a matter for the application protocol that uses PRECIS, baseline is a matter for the application protocol that uses PRECIS,
not for the PRECIS framework. not for the PRECIS framework.
The PRECIS framework, which is defined in terms of the latest version Three Unicode code points underwent changes in their GeneralCategory
of Unicode as of the time of this writing (6.3), treats the character between Unicode 5.2 (current at the time IDNA2008 was originally
U+19DA NEW TAI LUE THAM as DISALLOWED. Implementers need to be aware published) and Unicode 6.0, as described in [RFC6452]. Implementers
that this treatment is different from IDNA2008 (originally defined in might need to be aware that the treatment of these characters differs
terms of Unicode 5.2), which treats U+19DA as PVALID. depending on which version of Unicode is available on the system that
is using IDNA2008 or PRECIS, and that other such differences are
possible between the version of Unicode current at the time of this
writing (7.0) and future versions.
12. References 11. References
12.1. Normative References 11.1. Normative References
[RFC20] Cerf, V., "ASCII format for network interchange", RFC 20, [RFC20] Cerf, V., "ASCII format for network interchange", RFC 20,
October 1969. October 1969.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997. Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC5198] Klensin, J. and M. Padlipsky, "Unicode Format for Network [RFC5198] Klensin, J. and M. Padlipsky, "Unicode Format for Network
Interchange", RFC 5198, March 2008. Interchange", RFC 5198, March 2008.
[Unicode6.3] [Unicode7.0]
The Unicode Consortium, "The Unicode Standard, Version The Unicode Consortium, "The Unicode Standard, Version
6.3.0", 2013, 6.0.0", 2014,
<http://www.unicode.org/versions/Unicode6.3.0/>. <http://www.unicode.org/versions/Unicode7.0.0/>.
12.2. Informative References 11.2. Informative References
[I-D.ietf-precis-mappings] [I-D.ietf-precis-mappings]
Yoneya, Y. and T. NEMOTO, "Mapping characters for PRECIS Yoneya, Y. and T. NEMOTO, "Mapping characters for PRECIS
classes", draft-ietf-precis-mappings-07 (work in classes", draft-ietf-precis-mappings-08 (work in
progress), February 2014. progress), June 2014.
[I-D.ietf-precis-nickname] [I-D.ietf-precis-nickname]
Saint-Andre, P., "Preparation and Comparison of Saint-Andre, P., "Preparation and Comparison of
Nicknames", draft-ietf-precis-nickname-09 (work in Nicknames", draft-ietf-precis-nickname-09 (work in
progress), January 2014. progress), January 2014.
[I-D.ietf-precis-saslprepbis] [I-D.ietf-precis-saslprepbis]
Saint-Andre, P. and A. Melnikov, "Username and Password Saint-Andre, P. and A. Melnikov, "Username and Password
Preparation Algorithms", draft-ietf-precis-saslprepbis-07 Preparation Algorithms", draft-ietf-precis-saslprepbis-07
(work in progress), March 2014. (work in progress), March 2014.
skipping to change at page 35, line 9 skipping to change at page 31, line 50
Rationale", RFC 5894, August 2010. Rationale", RFC 5894, August 2010.
[RFC5895] Resnick, P. and P. Hoffman, "Mapping Characters for [RFC5895] Resnick, P. and P. Hoffman, "Mapping Characters for
Internationalized Domain Names in Applications (IDNA) Internationalized Domain Names in Applications (IDNA)
2008", RFC 5895, September 2010. 2008", RFC 5895, September 2010.
[RFC6365] Hoffman, P. and J. Klensin, "Terminology Used in [RFC6365] Hoffman, P. and J. Klensin, "Terminology Used in
Internationalization in the IETF", BCP 166, RFC 6365, Internationalization in the IETF", BCP 166, RFC 6365,
September 2011. September 2011.
[RFC6452] Faltstrom, P. and P. Hoffman, "The Unicode Code Points and
Internationalized Domain Names for Applications (IDNA) -
Unicode 6.0", RFC 6452, November 2011.
[RFC6885] Blanchet, M. and A. Sullivan, "Stringprep Revision and [RFC6885] Blanchet, M. and A. Sullivan, "Stringprep Revision and
Problem Statement for the Preparation and Comparison of Problem Statement for the Preparation and Comparison of
Internationalized Strings (PRECIS)", RFC 6885, March 2013. Internationalized Strings (PRECIS)", RFC 6885, March 2013.
[RFC6943] Thaler, D., "Issues in Identifier Comparison for Security [RFC6943] Thaler, D., "Issues in Identifier Comparison for Security
Purposes", RFC 6943, May 2013. Purposes", RFC 6943, May 2013.
[UAX9] The Unicode Consortium, "Unicode Standard Annex #9: [UAX9] The Unicode Consortium, "Unicode Standard Annex #9:
Unicode Bidirectional Algorithm", September 2012, Unicode Bidirectional Algorithm", September 2012,
<http://unicode.org/reports/tr9/>. <http://unicode.org/reports/tr9/>.
skipping to change at page 35, line 40 skipping to change at page 32, line 36
2014-present, <http://www.unicode.org/versions/latest/>. 2014-present, <http://www.unicode.org/versions/latest/>.
[UTR36] The Unicode Consortium, "Unicode Technical Report #36: [UTR36] The Unicode Consortium, "Unicode Technical Report #36:
Unicode Security Considerations", July 2012, Unicode Security Considerations", July 2012,
<http://unicode.org/reports/tr36/>. <http://unicode.org/reports/tr36/>.
[UTS39] The Unicode Consortium, "Unicode Technical Standard #39: [UTS39] The Unicode Consortium, "Unicode Technical Standard #39:
Unicode Security Mechanisms", July 2012, Unicode Security Mechanisms", July 2012,
<http://unicode.org/reports/tr39/>. <http://unicode.org/reports/tr39/>.
12.3. URIs 11.3. URIs
[1] http://unicode.org/Public/UNIDATA/PropertyAliases.txt [1] http://unicode.org/Public/UNIDATA/PropertyAliases.txt
[2] http://unicode.org/Public/UNIDATA/DerivedCoreProperties.txt [2] http://unicode.org/Public/UNIDATA/DerivedCoreProperties.txt
Appendix A. Codepoint Table Appendix A. Acknowledgements
If one applies the property calculation rules from Section 8 to the
code points 0x0000 to 0x10FFFF in Unicode 6.3, the result is as shown
in the following table, in Unicode Character Database (UCD) format.
The columns of the table are as follows:
1. The code point or codepoint range.
2. The assignment for the code point or range, where the value is
one of PVALID, DISALLOWED, UNASSIGNED, CONTEXTO, CONTEXTJ, or
FREE_PVAL (where the latter includes ID_DIS).
3. The name or names for the code point or range.
This table is non-normative, is included only for illustrative
purposes, and applies only to Unicode 6.3, not to past or future
versions of Unicode. Please note that the strings displayed in the
third column are not necessarily the formal name of the code point
(as defined in [Unicode6.3]) because the fixed width of the RFC
format necessitated truncation of many names.
0000..001F ; DISALLOWED # <control>
0020 ; FREE_PVAL # SPACE
0021..007E ; PVALID # EXCLAM MARK..TILDE
007F..009F ; DISALLOWED # <control>
00A0..00AC ; FREE_PVAL # NO-BREAK SPACE..NOT SIGN
00AD ; DISALLOWED # SOFT HYPH
00AE..00B6 ; FREE_PVAL # REGISTERED SIGN..PILCROW SIGN
00B7 ; CONTEXTO # MIDDLE DOT
00B8..00BF ; FREE_PVAL # CEDILLA..INV QUEST IND
00C0..00D6 ; PVALID # LAT CAP LET A W GRAV..LAT CAP O
00D7 ; FREE_PVAL # MULTIPLICATION SIGN
00D8..00F6 ; PVALID # LAT CAP LET O W STROKE..LAT SM
00F7 ; FREE_PVAL # DIVISION SIGN
00F8..0131 ; PVALID # LAT SM LET O W STROKE..LAT SM LET
0132..0133 ; FREE_PVAL # LAT CAP LIG IJ..LAT SM LIB IJ
0134..013E ; PVALID # LAT CAP LET J W CIRCUM..LAT SM LET
013F..0140 ; FREE_PVAL # LAT CAP LET L W MID DOT..LAT SM LET
0141..0148 ; PVALID # LAT CAP LET L W STROKE..LAT SM LET
0149 ; FREE_PVAL # LAT SM LET N PRECEDED BY APOS
014A..017E ; PVALID # LAT CAP LET ENG..LAT SM LET Z W CA
017F ; FREE_PVAL # LAT SM LET LONG S
0180..01C3 ; PVALID # LAT SM LET B W STROKE..LAT LET RETR
01C4..01CC ; FREE_PVAL # LAT CAP LET DZ W CARON..LAT SM
01CD..01F0 ; PVALID # LAT CAP LET A W CARON..LAT SM LET J
01F1..01F3 ; FREE_PVAL # LAT CAP LET DZ..LAT SM LET DZ
01F4..02AF ; PVALID # LAT CAP LET G W ACUTE..LAT SM
02B0..02B8 ; FREE_PVAL # MOD LET SM H..MOD LET SM Y
02B9..02C1 ; PVALID # MOD LET PRIME..MOD LET REV GLOT ST
02C2..02C5 ; FREE_PVAL # MOD LET L ARROW..MOD LET D ARROW
02C6..02D1 ; PVALID # MOD LET CIRCUM ACC..MOD LET HALF TR
02D2..02EB ; FREE_PVAL # MOD LET CENT R HALF RING..MOD LET Y
02EC ; PVALID # MOD LET VOICING
02ED ; FREE_PVAL # MOD LET UNASPIRATED
02EE ; PVALID # MOD LET DOUBLE APOS
02EF..02FF ; FREE_PVAL # MOD LET LOW D ARR..MOD LET LOW L AR
0300..034E ; PVALID # COMB GRAVE ACCENT..COMB UP ARROW BE
034F ; DISALLOWED # COMB GRAPHEME JOINER
0350..0374 ; PVALID # COMB RIGHT ARROWHEAD..GREEK NUM SIG
0375 ; CONTEXTO # GREEK LOW NUM SIGN
0376..0377 ; PVALID # GR CAP LET PAMPHYLIAN DIGAMMA..GR S
0378..0379 ; UNASSIGNED # <reserved>..<reserved>
037A ; FREE_PVAL # GR YPOGEGRAMMENI..GR SM REV DOT LUN
037B..037D ; PVALID # GR SM REV LUN SIG..GR SM REV DOT LU
037E ; FREE_PVAL # GREEK QUEST MARK
037F..0383 ; UNASSIGNED # <reserved>..<reserved>
0384..0385 ; FREE_PVAL # GREEK TONOS..GREEK DIALYTIKA TONOS
0386 ; PVALID # GR CAP LET ALPHA W TONOS
0387 ; FREE_PVAL # GREEK ANO TELEIA
0388..038A ; PVALID # GR CAP LET EPSILON W TONOS..GR CAP
038B ; UNASSIGNED # <reserved>
038C ; PVALID # GREEK CAP LET OMICRON W TONOS
038D ; UNASSIGNED # <reserved>
038E..03A1 ; PVALID # GR CAP LET EPSILON W TONOS..GR CAP
03A2 ; UNASSIGNED # <reserved>
03A3..03CF ; PVALID # GREEK CAP LET SIGMA..GR CAP
03D0..03D2 ; FREE_PVAL # GR BETA SYM..GR UPSILON W HOOK
03D3..03D4 ; FREE_PVAL # GR UPSILON W ACUTE AND HOOK..GR UP
03D5..03D6 ; FREE_PVAL # GR PHI SYM..GR PI SYM
03D7..03EF ; PVALID # GR KAI SYM..COPT SM LET DEI
03F0..03F2 ; FREE_PVAL # GR KAPPA SYM..GR LUNATE SIGMA
03F3 ; PVALID # GREEK LET YOT
03F4..03F6 ; FREE_PVAL # GR CAP THETA..GR REV LUNATE EPSILON
03F7..03F8 ; PVALID # GR CAP LET SHO..GR SM LET SHO
03F9 ; FREE_PVAL # GREEK CAP LUNATE SIGMA SYM
03FA..0481 ; PVALID # GR CAP LET SAN..CYR SML LET KOPPA
0482 ; FREE_PVAL # CYR THOUSANDS SIGN
0483..0487 ; PVALID # COMB CYR TITLO..COMB CYR POK
0488..0489 ; FREE_PVAL # COMB CYR HUNDRED THOUSANDS SIGN..C
048A..0527 ; PVALID # CYR CAP LET SH I W TAIL..CYR S
0528..0530 ; UNASSIGNED # <reserved>..<reserved>
0531..0556 ; PVALID # ARM CAP LET AYB..ARM CAP LET FEH
0557..0558 ; UNASSIGNED # <reserved>..<reserved>
0559 ; PVALID # ARM MOD LET LEFT HALF RING
055A..055F ; FREE_PVAL # ARM APOS..ARM ABBREV
0560 ; UNASSIGNED # <reserved>
0561..0586 ; PVALID # ARM SM LET AYB..ARMENIAN SM LE
0587 ; FREE_PVAL # ARM SM LIG ECH YIWN
0588 ; UNASSIGNED # <reserved>
0589..058A ; FREE_PVAL # ARMENIAN FULL STOP..ARMENIAN HYPH
058B..058E ; UNASSIGNED # <reserved>..<reserved>
058F ; FREE_PVAL # ARMENIAN DRAM SIGN
0590 ; UNASSIGNED # <reserved>
0591..05BD ; PVALID # HEBR ACC ETNAHTA..HEBR PNT ME
05BE ; FREE_PVAL # HEBR PUNCT MAQAF
05BF ; PVALID # HEBR PNT RAFE
05C0 ; FREE_PVAL # HEBR PUNCT PASEQ
05C1..05C2 ; PVALID # HEBR PNT SHIN DOT..HEBR PNT SIN DOT
05C3 ; FREE_PVAL # HEBR PUNCT SOF PASUQ
05C4..05C5 ; PVALID # HEBR MARK UP DOT..HEBR MARK LOW DOT
05C6 ; FREE_PVAL # HEBR PUNCT NUN HAFUKHA
05C7 ; PVALID # HEBR PNT QAMATS QATAN
05C8..05CF ; UNASSIGNED # <reserved>..<reserved>
05D0..05EA ; PVALID # HEBR LET ALEF..HEBR LET TAV
05EB..05EF ; UNASSIGNED # <reserved>..<reserved>
05F0..05F2 ; PVALID # HEBR LIG YIDDISH DOUBLE VAV..HEBR L
05F3..05F4 ; CONTEXTO # HEBR PUNCT GERESH..HEBR PUNCTUATIO
05F5..05FF ; UNASSIGNED # <reserved>..<reserved>
0600..0604 ; DISALLOWED # ARAB NUM SIGN..ARAB SIGN SAM
0605 ; UNASSIGNED # <reserved>..<reserved>
0606..060F ; FREE_PVAL # AR-IND CUBE ROOT..ARAB SIGN MISRA
0610..061A ; PVALID # ARAB SIGN SALLALLAHOU ALAYHE ..AR
061B ; FREE_PVAL # ARAB SEMICOLON
061C ; DISALLOWED # ARAB LET MARK
061D..061D ; UNASSIGNED # <reserved>..<reserved>
061E..061F ; FREE_PVAL # ARAB TRIPLE DOT PUNCT MARK..ARAB Q
0620..063F ; PVALID # ARAB LET KASH..ARAB LET FARSI YEH
0640 ; DISALLOWED # ARAB TATWEEL
0641..065F ; PVALID # ARAB LET FEH..ARAB WAVY HAMZA BEL
0660..0669 ; CONTEXTO # AR-IND DIG ZERO..AR-IND DIG
066A..066D ; FREE_PVAL # ARAB PCT SIGN..ARAB FIVE PNTED STA
066E..0674 ; PVALID # ARAB LET DOTLESS BEH..ARAB LET HIG
0675..0678 ; FREE_PVAL # ARAB LET HIGH HAMZA ALEF..ARAB LET
0679..06D3 ; PVALID # ARAB LET TTEH..ARAB LET YEH BARREE
06D4 ; FREE_PVAL # ARAB FULL STOP
06D5..06DC ; PVALID # ARAB LET AE..ARAB SM HIGH SEEN
06DD ; DISALLOWED # ARAB END OF AYAH
06DE ; FREE_PVAL # ARAB START OF RUB EL HIZB
06DF..06E8 ; PVALID # ARAB SM HIGH ROUNDED ZERO..ARAB SM
06E9 ; FREE_PVAL # ARAB PLACE OF SAJDAH
06EA..06EF ; PVALID # ARAB EMPTY CENTRE LOW STOP..ARAB LET
06F0..06F9 ; CONTEXTO # EXT AR-IND DIG ZERO..EXT A
06FA..06FF ; PVALID # ARAB LET SHEEN W DOT BEL..ARAB
0700..070D ; FREE_PVAL # SYR END OF PARA..SYR HARKLEAN AST
070E ; UNASSIGNED # <reserved>
070F ; DISALLOWED # SYR ABBR MARK
0710..074A ; PVALID # SYR LET ALAPH..SYR BARREKH
074B..074C ; UNASSIGNED # <reserved>..<reserved>
074D..07B1 ; PVALID # SYR LET SOGDIAN ZHAIN..THAANA LET N
07B2..07BF ; UNASSIGNED # <reserved>..<reserved>
07C0..07F5 ; PVALID # NKO DIG ZERO..NKO LOW TONE APOS
07F6..07F9 ; FREE_PVAL # NKO SYM OO DENNEN..NKO EXCLAMATI
07FA ; DISALLOWED # NKO LAJANYALAN
07FB..07FF ; UNASSIGNED # <reserved>..<reserved>
0800..082D ; PVALID # SAMAR LET ALAF..SAMAR MARK NEQUDA
082E..082F ; UNASSIGNED # <reserved>..<reserved>
0830..083E ; FREE_PVAL # SAMAR PUNCT NEQUDAA..SAMAR PUN
083F ; UNASSIGNED # <reserved>
0840..085B ; PVALID # MANDAIC LET HALQA..MANDAIC GEM
085C..085D ; UNASSIGNED # <reserved>..<reserved>
085E ; FREE_PVAL # MANDAIC PUNCTUATION
085F..089F ; UNASSIGNED # <reserved>..<reserved>
08A0 ; PVALID # ARAB LET BEH W SM V BEL
08A1 ; UNASSIGNED # <reserved>
08A2..08AC ; PVALID # ARAB LET JEEM W 2 DOTS AB..ARAB
08AD..08E3 ; UNASSIGNED # <reserved>..<reserved>
08E4..08FE ; PVALID # ARAB CURLY FATHA..ARAB DAMMA W
08FF ; UNASSIGNED # <reserved>
0900..0963 ; PVALID # DEVAN SIGN INV CANDRABINDU..DEVAN V
0964..0965 ; FREE_PVAL # DEVAN DANDA..DEVAN DOUBLE DANDA
0966..096F ; PVALID # DEVAN DIG ZERO..DEVAN DIG NINE
0970 ; FREE_PVAL # DEVAN ABBR SIGN
0971..0977 ; PVALID # DEVAN SIGN HIGH SPACING DOT..DEVAN
0978 ; UNASSIGNED # <reserved>
0979..097F ; PVALID # DEVAN SIGN HIGH SPACING DOT..DEVAN
0980 ; UNASSIGNED # <reserved>
0981..0983 ; PVALID # BENG SIGN CANDRABINDU..BENG SIGN VIS
0984 ; UNASSIGNED # <reserved>
0985..098C ; PVALID # BENG LET A..BENG LET VOC L
098D..098E ; UNASSIGNED # <reserved>..<reserved>
098F..0990 ; PVALID # BENG LET E..BENG LET AI
0991..0992 ; UNASSIGNED # <reserved>..<reserved>
0993..09A8 ; PVALID # BENG LET O..BENG LET NA
09A9 ; UNASSIGNED # <reserved>
09AA..09B0 ; PVALID # BENG LET PA..BENG LET RA
09B1 ; UNASSIGNED # <reserved>
09B2 ; PVALID # BENG LET LA
09B3..09B5 ; UNASSIGNED # <reserved>..<reserved>
09B6..09B9 ; PVALID # BENG LET SHA..BENG LET HA
09BA..09BB ; UNASSIGNED # <reserved>..<reserved>
09BC..09C4 ; PVALID # BENG SIGN NUKTA..BENG VOW SIGN VOCAL
09C5..09C6 ; UNASSIGNED # <reserved>..<reserved>
09C7..09C8 ; PVALID # BENG VOW SIGN E..BENG VOW SIGN AI
09C9..09CA ; UNASSIGNED # <reserved>..<reserved>
09CB..09CE ; PVALID # BENG VOW SIGN O..BENG LET KHANDA
09CF..09D6 ; UNASSIGNED # <reserved>..<reserved>
09D7 ; PVALID # BENG AU LEN MARK
09D8..09DB ; UNASSIGNED # <reserved>..<reserved>
09DC..09DD ; PVALID # BENG LET RRA..BENG LET RHA
09DE ; UNASSIGNED # <reserved>
09DF..09E3 ; PVALID # BENG LET YYA..BENG VOW SIG
09E4..09E5 ; UNASSIGNED # <reserved>..<reserved>
09E6..09F1 ; PVALID # BENG DIG ZERO..BENG LET RA W L
09F2..09FB ; FREE_PVAL # BENG RUPEE MARK..BENG GANDA MARK
09FC..0A00 ; UNASSIGNED # <reserved>..<reserved>
0A01..0A03 ; PVALID # GURMUKHI SIGN ADAK BINDI..GURMUKHI
0A04 ; UNASSIGNED # <reserved>
0A05..0A0A ; PVALID # GURMUKHI LET A..GURMUKHI LET UU
0A0B..0A0E ; UNASSIGNED # <reserved>..<reserved>
0A0F..0A10 ; PVALID # GURMUKHI LET EE..GURMUKHI LET AI
0A11..0A12 ; UNASSIGNED # <reserved>..<reserved>
0A13..0A28 ; PVALID # GURMUKHI LET OO..GURMUKHI LET NA
0A29 ; UNASSIGNED # <reserved>
0A2A..0A30 ; PVALID # GURMUKHI LET PA..GURMUKHI LET RA
0A31 ; UNASSIGNED # <reserved>
0A32..0A33 ; PVALID # GURMUKHI LET LA..GURMUKHI LET LLA
0A34 ; UNASSIGNED # <reserved>
0A35.OA36 ; PVALID # GURMUKHI LET VA..GURMUKHI LET SHA
0A37 ; UNASSIGNED # <reserved>
0A38..0A39 ; PVALID # GURMUKHI LET SA..GURMUKHI LET HA
0A3A..0A3B ; UNASSIGNED # <reserved>..<reserved>
0A3C ; PVALID # GURMUKHI SIGN NUKTA
0A3D ; UNASSIGNED # <reserved>
0A3E..0A42 ; PVALID # GURMUKHI VOW SIGN AA..GURMUKHI V
0A43..0A46 ; UNASSIGNED # <reserved>..<reserved>
0A47..0A48 ; PVALID # GURMUKHI VOW SIGN EE..GURMUKHI V
0A49..0A4A ; UNASSIGNED # <reserved>..<reserved>
0A4B..0A4D ; PVALID # GURMUKHI VOW SIGN OO..GURMUKHI S
0A4E..0A50 ; UNASSIGNED # <reserved>..<reserved>
0A51 ; PVALID # GURMUKHI SIGN UDAAT
0A52..0A58 ; UNASSIGNED # <reserved>..<reserved>
0A59..0A5C ; PVALID # GURMUKHI LET KHHA..GURMUKHI LET RRA
0A5D ; UNASSIGNED # <reserved>
0A5E ; PVALID # GURMUKHI LET FA
0A5F..0A65 ; UNASSIGNED # <reserved>..<reserved>
0A66..0A75 ; PVALID # GURMUKHI DIG ZERO..GURMUKHI SIGN YA
0A76..0A80 ; UNASSIGNED # <reserved>..<reserved>
0A81..0A83 ; PVALID # GUJARATI SIGN CANDRABINDU..GUJARATI
0A84 ; UNASSIGNED # <reserved>
0A85..0A8D ; PVALID # GUJARATI LET A..GUJARATI VOW CAND
0A8E ; UNASSIGNED # <reserved>
0A8F..0A91 ; PVALID # GUJARATI LET E..GUJARATI VOW CAND
0A92 ; UNASSIGNED # <reserved>
0A93..0AA8 ; PVALID # GUJARATI LET O..GUJARATI LET NA
0AA9 ; UNASSIGNED # <reserved>
0AAA..0AB0 ; PVALID # GUJARATI LET PA..GUJARATI LET RA
0AB1 ; UNASSIGNED # <reserved>
0AB2..0AB3 ; PVALID # GUJARATI LET LA..GUJARATI LET LLA
0AB4 ; UNASSIGNED # <reserved>
0AB5..0AB9 ; PVALID # GUJARATI LET VA..GUJARATI LET HA
0ABA..0ABB ; UNASSIGNED # <reserved>..<reserved>
0ABC..0AC5 ; PVALID # GUJARATI SIGN NUKTA..GUJARATI VOW
0AC6 ; UNASSIGNED # <reserved>
0AC7..0AC9 ; PVALID # GUJARATI VOW SIGN E..GUJARATI VOW
0ACA ; UNASSIGNED # <reserved>
0ACB..0ACD ; PVALID # GUJARATI VOW SIGN O..GUJARATI SIG
0ACE..0ACF ; UNASSIGNED # <reserved>..<reserved>
0AD0 ; PVALID # GUJARATI OM
0AD1..0ADF ; UNASSIGNED # <reserved>..<reserved>
0AE0..0AE3 ; PVALID # GUJARATI LET VOC RR..GUJARATI V
0AE4..0AE5 ; UNASSIGNED # <reserved>..<reserved>
0AE6..0AEF ; PVALID # GUJARATI DIG ZERO..GUJARATI DIG NINE
0AF0..0AF1 ; FREE_PVAL # GUJARATI ABBR SIGN..GUJARATI RUPEE S
0AF2..0B00 ; UNASSIGNED # <reserved>..<reserved>
0B01..0B03 ; PVALID # ORIYA SIGN CANDRABINDU..ORIYA SIGN V
0B04 ; UNASSIGNED # <reserved>
0B05..0B0C ; PVALID # ORIYA LET A..ORIYA LET VOC L
0B0D..0B0E ; UNASSIGNED # <reserved>..<reserved>
0B0F..0B10 ; PVALID # ORIYA LET E..ORIYA LET AI
0B11..0B12 ; UNASSIGNED # <reserved>..<reserved>
0B13..0B28 ; PVALID # ORIYA LET O..ORIYA LET NA
0B29 ; UNASSIGNED # <reserved>
0B2A..0B30 ; PVALID # ORIYA LET PA..ORIYA LET RA
0B31 ; UNASSIGNED # <reserved>
0B32..0B33 ; PVALID # ORIYA LET LA..ORIYA LET LLA
0B34 ; UNASSIGNED # <reserved>
0B35..0B39 ; PVALID # ORIYA LET VA..ORIYA LET HA
0B3A..0B3B ; UNASSIGNED # <reserved>..<reserved>
0B3C..0B44 ; PVALID # ORIYA SIGN NUKTA..ORIYA VOW SIGN
0B45..0B46 ; UNASSIGNED # <reserved>..<reserved>
0B47..0B48 ; PVALID # ORIYA VOW SIGN E..ORIYA VOW SIG
0B49..0B4A ; UNASSIGNED # <reserved>..<reserved>
0B4B..0B4D ; PVALID # ORIYA VOW SIGN O..ORIYA SIGN VIRA
0B4E..0B55 ; UNASSIGNED # <reserved>..<reserved>
0B56..0B57 ; PVALID # ORIYA AI LEN MARK..ORIYA AU LENG
0B58..0B5B ; UNASSIGNED # <reserved>..<reserved>
0B5C..0B5D ; PVALID # ORIYA LET RRA..ORIYA LET RHA
0B5E ; UNASSIGNED # <reserved>
0B5F..0B63 ; PVALID # ORIYA LET YYA..ORIYA VOW SIGN VOCA
0B64..0B65 ; UNASSIGNED # <reserved>..<reserved>
0B66..0B6F ; PVALID # ORIYA DIG ZERO..ORIYA DIG NINE
0B70 ; FREE_PVAL # ORIYA ISSHAR
0B71 ; PVALID # ORIYA LET WA
0B72..0B77 ; FREE_PVAL # ORIYA FRACT ONE QUART..ORIYA FRACT
0B78..0B81 ; UNASSIGNED # <reserved>..<reserved>
0B82..0B83 ; PVALID # TAMIL SIGN ANUSVARA..TAMIL SIGN VIS
0B84 ; UNASSIGNED # <reserved>
0B85..0B8A ; PVALID # TAMIL LET A..TAMIL LET UU
0B8B..0B8D ; UNASSIGNED # <reserved>..<reserved>
0B8E..0B90 ; PVALID # TAMIL LET E..TAMIL LET AI
0B91 ; UNASSIGNED # <reserved>
0B92..0B95 ; PVALID # TAMIL LET O..TAMIL LET KA
0B96..0B98 ; UNASSIGNED # <reserved>..<reserved>
0B99..0B9A ; PVALID # TAMIL LET NGA..TAMIL LET CA
0B9B ; UNASSIGNED # <reserved>
0B9C ; PVALID # TAMIL LET JA
0B9D ; UNASSIGNED # <reserved>
0B9E..0B9F ; PVALID # TAMIL LET NYA..TAMIL LET TTA
0BA0..0BA2 ; UNASSIGNED # <reserved>..<reserved>
0BA3..0BA4 ; PVALID # TAMIL LET NNA..TAMIL LET TA
0BA5..0BA7 ; UNASSIGNED # <reserved>..<reserved>
0BA8..0BAA ; PVALID # TAMIL LET NA..TAMIL LET PA
0BAB..0BAD ; UNASSIGNED # <reserved>..<reserved>
0BAE..0BB9 ; PVALID # TAMIL LET MA..TAMIL LET HA
0BBA..0BBD ; UNASSIGNED # <reserved>..<reserved>
0BBE..0BC2 ; PVALID # TAMIL VOW SIGN AA..TAMIL VOW SI
0BC3..0BC5 ; UNASSIGNED # <reserved>..<reserved>
0BC6..0BC8 ; PVALID # TAMIL VOW SIGN E..TAMIL VOW SIG
0BC9 ; UNASSIGNED # <reserved>
0BCA..0BCD ; PVALID # TAMIL VOW SIGN O..TAMIL SIGN VIRA
0BCE..0BCF ; UNASSIGNED # <reserved>..<reserved>
0BD0 ; PVALID # TAMIL OM
0BD1..0BD6 ; UNASSIGNED # <reserved>..<reserved>
0BD7 ; PVALID # TAMIL AU LEN MARK
0BD8..0BE5 ; UNASSIGNED # <reserved>..<reserved>
0BE6..0BEF ; PVALID # TAMIL DIG ZERO..TAMIL DIG NINE
0BF0..0BFA ; FREE_PVAL # TAMIL NUM TEN..TAMIL NUM SIGN
0BFB..0C00 ; UNASSIGNED # <reserved>..<reserved>
0C01..0C03 ; PVALID # TELUGU SIGN CANDRABINDU..TELUGU SIG
0C04 ; UNASSIGNED # <reserved>
0C05..0C0C ; PVALID # TELUGU LET A..TELUGU LET VOC L
0C0D ; UNASSIGNED # <reserved>
0C0E..0C10 ; PVALID # TELUGU LET E..TELUGU LET AI
0C11 ; UNASSIGNED # <reserved>
0C12..0C28 ; PVALID # TELUGU LET O..TELUGU LET NA
0C29 ; UNASSIGNED # <reserved>
0C2A..0C33 ; PVALID # TELUGU LET PA..TELUGU LET LLA
0C34 ; UNASSIGNED # <reserved>
0C35..0C39 ; PVALID # TELUGU LET VA..TELUGU LET HA
0C3A..0C3C ; UNASSIGNED # <reserved>..<reserved>
0C3D..0C44 ; PVALID # TELUGU SIGN AVAGRAHA..TELUGU VOW SI
0C45 ; UNASSIGNED # <reserved>
0C46..0C48 ; PVALID # TELUGU VOW SIGN E..TELUGU VOW SIGN
0C49 ; UNASSIGNED # <reserved>
0C4A..0C4D ; PVALID # TELUGU VOW SIGN O..TELUGU SIGN VIRA
0C4E..0C54 ; UNASSIGNED # <reserved>..<reserved>
0C55..0C56 ; PVALID # TELUGU LEN MARK..TELUGU AI LEN MARK
0C57 ; UNASSIGNED # <reserved>
0C58..0C59 ; PVALID # TELUGU LET TSA..TELUGU LET DZA
0C5A..0C5F ; UNASSIGNED # <reserved>..<reserved>
0C60..0C63 ; PVALID # TELUGU LET VOC RR..TELUGU VOW S
0C64..0C65 ; UNASSIGNED # <reserved>..<reserved>
0C66..0C6F ; PVALID # TELUGU DIG ZERO..TELUGU DIG NINE
0C70..0C77 ; UNASSIGNED # <reserved>..<reserved>
0C78..0C7F ; FREE_PVAL # TELUGU FRACTION DIG ZERO..TELUGU S
0C80..0C81 ; UNASSIGNED # <reserved>..<reserved>
0C82..0C83 ; PVALID # KANNADA SIGN ANUSVARA..KANNADA SIGN
0C84 ; UNASSIGNED # <reserved>
0C85..0C8C ; PVALID # KANNADA LET A..KANNADA LET VOC L
0C8D ; UNASSIGNED # <reserved>
0C8E..0C90 ; PVALID # KANNADA LET E..KANNADA LET AI
0C91 ; UNASSIGNED # <reserved>
0C92..0CA8 ; PVALID # KANNADA LET O..KANNADA LET NA
0CA9 ; UNASSIGNED # <reserved>
0CAA..0CB3 ; PVALID # KANNADA LET PA..KANNADA LET LLA
0CB4 ; UNASSIGNED # <reserved>
0CB5..0CB9 ; PVALID # KANNADA LET VA..KANNADA LET HA
0CBA..0CBB ; UNASSIGNED # <reserved>..<reserved>
0CBC..0CC4 ; PVALID # KANNADA SIGN NUKTA..KANNADA VOW SIG
0CC5 ; UNASSIGNED # <reserved>
0CC6..0CC8 ; PVALID # KANNADA VOW SIGN E..KANNADA VOW SIG
0CC9 ; UNASSIGNED # <reserved>
0CCA..0CCD ; PVALID # KANNADA VOW SIGN O..KANNADA SIGN VI
0CCE..0CD4 ; UNASSIGNED # <reserved>..<reserved>
0CD5..0CD6 ; PVALID # KANNADA LEN MARK..KANNADA AI LEN MA
0CD7..0CDD ; UNASSIGNED # <reserved>..<reserved>
0CDE ; PVALID # KANNADA LET FA
0CDF ; UNASSIGNED # <reserved>
0CE0..0CE3 ; PVALID # KANNADA LET VOC RR..KANNADA VOW SIG
0CE4..0CE5 ; UNASSIGNED # <reserved>..<reserved>
0CE6..0CEF ; PVALID # KANNADA DIG ZERO..KANNADA DIG NINE
0CF0 ; UNASSIGNED # <reserved>
0CF1..0CF2 ; PVALID # KANNADA SIGN JIHVAMULIYA..KANNADA S
0CF3..0D01 ; UNASSIGNED # <reserved>..<reserved>
0D02..0D03 ; PVALID # MALAY SIGN ANUSVARA..MALAY SIGN VIS
0D04 ; UNASSIGNED # <reserved>
0D05..0D0C ; PVALID # MALAY LET A..MALAY LET VOC
0D0D ; UNASSIGNED # <reserved>
0D0E..0D10 ; PVALID # MALAY LET E..MALAY LET AI
0D11 ; UNASSIGNED # <reserved>
0D12..0D3A ; PVALID # MALAY LET O..MALAY LET TTTA
0D3B..0D3C ; UNASSIGNED # <reserved>..<reserved>
0D3D..0D44 ; PVALID # MALAY SIGN AVAGRAHA..MALAY VOW SIG
0D45 ; UNASSIGNED # <reserved>
0D46..0D48 ; PVALID # MALAY VOW SIGN E..MALAY VOW SIGN
0D49 ; UNASSIGNED # <reserved>
0D4A..0D4E ; PVALID # MALAY VOW SIGN O..MALAY LET DOT REP
0D4F..0D56 ; UNASSIGNED # <reserved>..<reserved>
0D57 ; PVALID # MALAY AU LEN MARK
0D58..0D5F ; UNASSIGNED # <reserved>..<reserved>
0D60..0D63 ; PVALID # MALAY LET VOC RR..MALAY VOW
0D64..0D65 ; UNASSIGNED # <reserved>..<reserved>
0D66..0D6F ; PVALID # MALAY DIG ZERO..MALAY DIG NINE
0D70..0D75 ; FREE_PVAL # MALAY NUM TEN..MALAY FRACTION THR
0D76..0D78 ; UNASSIGNED # <reserved>..<reserved>
0D79 ; FREE_PVAL # MALAY DATE MARK
0D7A..0D7F ; PVALID # MALAY LET CHILLU NN..MALAY LET
0D80..0D81 ; UNASSIGNED # <reserved>..<reserved>
0D82..0D83 ; PVALID # SINH SIGN ANUSVARAYA..SINH SIGN VIS
0D84 ; UNASSIGNED # <reserved>
0D85..0D96 ; PVALID # SINH LET AYANNA..SINH LET AUYANN
0D97..0D99 ; UNASSIGNED # <reserved>..<reserved>
0D9A..0DB1 ; PVALID # SINH LET ALPAPRAANA KAYANNA..SINH L
0DB2 ; UNASSIGNED # <reserved>
0DB3..0DBB ; PVALID # SINH LET SANYAKA DAYANNA..SINH LETT
0DBC ; UNASSIGNED # <reserved>
0DBD ; PVALID # SINH LET DANTAJA LAYANNA
0DBE..0DBF ; UNASSIGNED # <reserved>..<reserved>
0DC0..0DC6 ; PVALID # SINH LET VAYANNA..SINH LET FAYAN
0DC7..0DC9 ; UNASSIGNED # <reserved>..<reserved>
0DCA ; PVALID # SINH SIGN AL-LAKUNA
0DCB..0DCE ; UNASSIGNED # <reserved>..<reserved>
0DCF..0DD4 ; PVALID # SINH VOW SIGN AELA-PILLA..SINH VOW
0DD5 ; UNASSIGNED # <reserved>
0DD6 ; PVALID # SINH VOW SIGN DIGA PAA-PILLA
0DD7 ; UNASSIGNED # <reserved>
0DD8..0DDF ; PVALID # SINH VOW SIGN GAETTA-PILLA..SINH VO
0DE0..0DF1 ; UNASSIGNED # <reserved>..<reserved>
0DF2..0DF3 ; PVALID # SINH VOW SIGN DIGA GAETTA-PILLA..SI
0DF4 ; FREE_PVAL # SINH PUNCT KUNDDALIYA
0DF5..0E00 ; UNASSIGNED # <reserved>..<reserved>
0E01..0E32 ; PVALID # THAI CHAR KO KAI..THAI CHAR SARA A
0E33 ; FREE_PVAL # THAI CHAR SARA AM
0E34..0E3A ; PVALID # THAI CHAR SARA I..THAI CHAR PHINTH
0E3B..0E3E ; UNASSIGNED # <reserved>..<reserved>
0E3F ; FREE_PVAL # THAI CURRENCY SYM BAHT
0E40..0E4E ; PVALID # THAI CHAR SARA E..THAI CHAR YAMAKK
0E4F ; FREE_PVAL # THAI CHAR FONGMAN
0E50..0E59 ; PVALID # THAI DIG ZERO..THAI DIG NINE
0E5A..0E5B ; FREE_PVAL # THAI CHAR ANGKHANKHU..THAI CHAR KH
0E5C..0E80 ; UNASSIGNED # <reserved>..<reserved>
0E81..0E82 ; PVALID # LAO LET KO..LAO LET KHO SUNG
0E83 ; UNASSIGNED # <reserved>
0E84 ; PVALID # LAO LET KHO TAM
0E85..0E86 ; UNASSIGNED # <reserved>..<reserved>
0E87..0E88 ; PVALID # LAO LET NGO..LAO LET CO
0E89 ; UNASSIGNED # <reserved>
0E8A ; PVALID # LAO LET SO TAM
0E8B..0E8C ; UNASSIGNED # <reserved>..<reserved>
0E8D ; PVALID # LAO LET NYO
0E8E..0E93 ; UNASSIGNED # <reserved>..<reserved>
0E94..0E97 ; PVALID # LAO LET DO..LAO LET THO TAM
0E98 ; UNASSIGNED # <reserved>
0E99..0E9F ; PVALID # LAO LET NO..LAO LET FO SUNG
0EA0 ; UNASSIGNED # <reserved>
0EA1..0EA3 ; PVALID # LAO LET MO..LAO LET LO LING
0EA4 ; UNASSIGNED # <reserved>
0EA5 ; PVALID # LAO LET LO LOOT
0EA6 ; UNASSIGNED # <reserved>
0EA7 ; PVALID # LAO LET WO
0EA8..0EA9 ; UNASSIGNED # <reserved>..<reserved>
0EAA..0EAB ; PVALID # LAO LET SO SUNG..LAO LET HO SUNG
0EAC ; UNASSIGNED # <reserved>
0EAD..0EB2 ; PVALID # LAO LET O..LAO VOW SIGN AA
0EB3 ; FREE_PVAL # LAO VOW SIGN AM
0EB4..0EB9 ; PVALID # LAO VOW SIGN I..LAO VOW SIGN UU
0EBA ; UNASSIGNED # <reserved>
0EBB..0EBD ; PVALID # LAO VOW SIGN MAI KON..LAO SEMIVOW SIG
0EBE..0EBF ; UNASSIGNED # <reserved>..<reserved>
0EC0..0EC4 ; PVALID # LAO VOW SIGN E..LAO VOW SIGN AI
0EC5 ; UNASSIGNED # <reserved>
0EC6 ; PVALID # LAO KO LA
0EC7 ; UNASSIGNED # <reserved>
0EC8..0ECD ; PVALID # LAO TONE MAI EK..LAO NIGGAHITA
0ECE..0ECF ; UNASSIGNED # <reserved>..<reserved>
0ED0..0ED9 ; PVALID # LAO DIG ZERO..LAO DIG NINE
0EDA..0EDB ; UNASSIGNED # <reserved>..<reserved>
0EDC..0EDD ; FREE_PVAL # LAO HO NO..LAO HO MO
0EDE..0EDF ; PVALID # LAO LET KHMU GO..TIB SYL OM
0EE0..0EEF ; UNASSIGNED # <reserved>..<reserved>
0F00 ; PVALID # TIB SYLL OM
0F01..0F0A ; FREE_PVAL # TIB MARK GTER YIG MGO TRUNC A..TIB
0F0B ; PVALID # TIB MARK INTERSYLLABIC TSHEG
0F0C..0F17 ; FREE_PVAL # TIB MARK DELIMITER TSHEG BSTAR..TIB
0F18..0F19 ; PVALID # TIB ASTROLOGICAL SIGN -KHYUD PA..TIB
0F1A..0F1F ; FREE_PVAL # TIB SIGN RDEL DKAR GCIG..TIB SIGN RD
0F20..0F29 ; PVALID # TIB DIG ZERO..TIB DIG NINE
0F2A..0F34 ; FREE_PVAL # TIB DIG HALF ONE..TIB MARK BSDUS R
0F35 ; PVALID # TIB MARK NGAS BZUNG NYI ZLA
0F36 ; FREE_PVAL # TIB MARK CARET DZUD RTAGS BZHI MIG C
0F37 ; PVALID # TIB MARK NGAS BZUNG SGOR RTAGS
0F38 ; FREE_PVAL # TIB MARK CHE MGO
0F39 ; PVALID # TIB MARK TSA PHRU
0F3A..0F3D ; FREE_PVAL # TIB MARK GUG RTAGS GYON..TIB MARK AN
0F3E..0F47 ; PVALID # TIB SIGN YAR TSHES..TIB LET JA
0F48 ; UNASSIGNED # <reserved>
0F49..0F6C ; PVALID # TIB LET NYA..TIB LET RRA
0F6D..0F70 ; UNASSIGNED # <reserved>..<reserved>
0F71..0F76 ; PVALID # TIB VOW SIGN AA..TIB VOW SIGN VO
0F77 ; FREE_PVAL # TIB VOW SIGN VO RR
0F78 ; PVALID # TIB VOW SIGN VO L
0F79 ; FREE_PVAL # TIB VOW SIGN VO LL
0F7A..0F84 ; PVALID # TIB VOW SIGN E..TIB MARK H
0F85 ; FREE_PVAL # TIB MARK PALUTA
0F86..0F8F ; PVALID # TIB SIGN LCI RTAGS..TIB SUBJOIN S
0F90..0F97 ; PVALID # TIB SUBJOIN LET KA..TIB SUBJOIN
0F98 ; UNASSIGNED # <reserved>
0F99..0FBC ; PVALID # TIB SUBJOIN LET NYA..TIB SUBJOI
0FBD ; UNASSIGNED # <reserved>
0FBE..0FC5 ; FREE_PVAL # TIB KU RU KHA..TIB SYM RDO RJE
0FC6 ; PVALID # TIB SYM PADMA GDAN
0FC7..0FCC ; FREE_PVAL # TIB SYM RDO RJE RGYA GRAM..TIB SY
0FCD ; UNASSIGNED # <reserved>
0FCE..0FDA ; FREE_PVAL # TIB SIGN RDEL NAG RDEL DKAR..TIB MA
0FDB..0FFF ; UNASSIGNED # <reserved>..<reserved>
1000..1049 ; PVALID # MYAN LET KA..MYAN DIG NINE
104A..104F ; FREE_PVAL # MYAN SIGN LITTLE SECTION..MYAN SYM
1050..109D ; PVALID # MYAN LET SHA..MYAN VOW SIGN AITON
109E..109F ; FREE_PVAL # MYAN SYM SHAN ONE..MYAN SYM SHAN EX
10A0..10C5 ; PVALID # GEORG CAP LET AN..GEORG CAP LET HOE
10C6 ; UNASSIGNED # <reserved>
10C7 ; PVALID # GEORG CAP LET YN
10C8..10CC ; UNASSIGNED # <reserved>..<reserved>
10CD ; PVALID # GEORG CAP LET AEN
10CE..10CF ; UNASSIGNED # <reserved>..<reserved>
10D0..10FA ; PVALID # GEORG LET AN..GEORG LET AIN
10FB..10FC ; FREE_PVAL # GEORG PARA SEP..MOD LET GEORG NAR
10FD..10FF ; PVALID # GEORG LET AEN..GEORG LET LABIAL
1100..11FF ; DISALLOWED # HANGUL CHO KIYEOK..HANGUL JONG SSA
1200..1248 ; PVALID # ETHI SYL HA..ETHI SYL QWA
1249 ; UNASSIGNED # <reserved>
124A..124D ; PVALID # ETHI SYL QWI..ETHI SYL QWE
124E..124F ; UNASSIGNED # <reserved>..<reserved>
1250..1256 ; PVALID # ETHI SYL QHA..ETHI SYL QHO
1257 ; UNASSIGNED # <reserved>
1258 ; PVALID # ETHI SYL QHWA
1259 ; UNASSIGNED # <reserved>
125A..125D ; PVALID # ETHI SYL QHWI..ETHI SYL QH
125E..125F ; UNASSIGNED # <reserved>..<reserved>
1260..1288 ; PVALID # ETHI SYL BA..ETHI SYL XWA
1289 ; UNASSIGNED # <reserved>
128A..128D ; PVALID # ETHI SYL XWI..ETHI SYL XWE
128E..128F ; UNASSIGNED # <reserved>..<reserved>
1290..12B0 ; PVALID # ETHI SYL NA..ETHI SYL KWA
12B1 ; UNASSIGNED # <reserved>
12B2..12B5 ; PVALID # ETHI SYL KWI..ETHI SYL KWE
12B6..12B7 ; UNASSIGNED # <reserved>..<reserved>
12B8..12BE ; PVALID # ETHI SYL KXA..ETHI SYL KXO
12BF ; UNASSIGNED # <reserved>
12C0 ; PVALID # ETHI SYL KXWA
12C1 ; UNASSIGNED # <reserved>
12C2..12C5 ; PVALID # ETHI SYL KXWI..ETHI SYL KX
12C6..12C7 ; UNASSIGNED # <reserved>..<reserved>
12C8..12D6 ; PVALID # ETHI SYL WA..ETHI SYL PHAR
12D7 ; UNASSIGNED # <reserved>
12D8..1310 ; PVALID # ETHI SYL ZA..ETHI SYL GWA
1311 ; UNASSIGNED # <reserved>
1312..1315 ; PVALID # ETHI SYL GWI..ETHI SYL GWE
1316..1317 ; UNASSIGNED # <reserved>..<reserved>
1318..135A ; PVALID # ETHI SYL GGA..ETHI SYL FYA
135B..135C ; UNASSIGNED # <reserved>..<reserved>
135D..135F ; PVALID # ETHI COMB GEM AND VOW..ETHI COMB GE
1360..137C ; FREE_PVAL # ETHI SECT MARK..ETHI NUM TEN THOUS
137D..137F ; UNASSIGNED # <reserved>..<reserved>
1380..138F ; PVALID # ETHI SYL SEBATBEIT MWA..ETHI SYL PW
1390..1399 ; FREE_PVAL # ETHI TON MARK YIZET..ETHI TON MARK
139A..139F ; UNASSIGNED # <reserved>..<reserved>
13A0..13F4 ; PVALID # CHEROKEE LET A..CHEROKEE LET YV
13F5..13FF ; UNASSIGNED # <reserved>..<reserved>
1400 ; FREE_PVAL # CANAD SYL HYPHEN
1401..166C ; PVALID # CANAD SYL E..CANAD SYL CAR
166D..166E ; FREE_PVAL # CANAD SYL CHI SIGN..CANAD SYLLAB
166F..167F ; PVALID # CANAD SYL QAI..CANAD SYL B
1680 ; FREE_PVAL # OGHAM SPACE MARK
1681..169A ; PVALID # OGHAM LET BEITH..OGHAM LET PEITH
169B..169C ; FREE_PVAL # OGHAM FEATHER MARK..OGHAM REV FEAT
169D..169F ; UNASSIGNED # <reserved>..<reserved>
16A0..16EA ; PVALID # RUNIC LET FEHU FEOH FE F..RUNIC LET
16EB..16F0 ; FREE_PVAL # RUNIC SINGLE PUNCT..RUNIC BELGTHOR
16F1..16FF ; UNASSIGNED # <reserved>..<reserved>
1700..170C ; PVALID # TAGALOG LET A..TAGALOG LET YA
170D ; UNASSIGNED # <reserved>
170E..1714 ; PVALID # TAGALOG LET LA..TAGALOG SIGN VIRAMA
1715..171F ; UNASSIGNED # <reserved>..<reserved>
1720..1734 ; PVALID # HANUNOO LET A..HANUNOO SIGN PAMUDPO
1735..1736 ; FREE_PVAL # PHILIP SINGLE PUNCT..PHILIP DOUBLE
1737..173F ; UNASSIGNED # <reserved>..<reserved>
1740..1753 ; PVALID # BUHID LET A..BUHID VOW SIGN U
1754..175F ; UNASSIGNED # <reserved>..<reserved>
1760..176C ; PVALID # TAGBANWA LET A..TAGBANWA LET YA
176D ; UNASSIGNED # <reserved>
176E..1770 ; PVALID # TAGBANWA LET LA..TAGBANWA LET SA
1771 ; UNASSIGNED # <reserved>
1772..1773 ; PVALID # TAGBANWA VOW SIGN I..TAGBANWA VOW S
1774..177F ; UNASSIGNED # <reserved>..<reserved>
1780..17B3 ; PVALID # KHMER LET KA..KHMER IND VOW QAU
17B4..17B5 ; DISALLOWED # KHMER VOW INH AQ..KHMER VOW INH AA
17B6..17D3 ; PVALID # KHMER VOW SIGN AA..KHMER SIGN BATHA
17D4..17D6 ; FREE_PVAL # KHMER SIGN KHAN..KHMER SIGN CAMNUC
17D7 ; PVALID # KHMER SIGN LEK TOO
17D8..17DB ; FREE_PVAL # KHMER SIGN BEYYAL..KHMER CURR SYM R
17DC..17DD ; PVALID # KHMER SIGN AVAKRAHASANYA..KHMER SIG
17DE..17DF ; UNASSIGNED # <reserved>..<reserved>
17E0..17E9 ; PVALID # KHMER DIG ZERO..KHMER DIG NINE
17EA..17EF ; UNASSIGNED # <reserved>..<reserved>
17F0..17F9 ; FREE_PVAL # KHMER SYM LEK ATTAK SON..KHMER SYM
17FA..17FF ; UNASSIGNED # <reserved>..<reserved>
1800..180A ; FREE_PVAL # MONG BIRGA..MONG NIRUGU
180B..180E ; DISALLOWED # MONG FREE VAR SEL ONE..MONG VOW SEP
180F ; UNASSIGNED # <reserved>
1810..1819 ; PVALID # MONG DIG ZERO..MONG DIG NINE
181A..181F ; UNASSIGNED # <reserved>..<reserved>
1820..1877 ; PVALID # MONG LET A..MONG LET MANCHU
1878..187F ; UNASSIGNED # <reserved>..<reserved>
1880..18AA ; PVALID # MONG LET ALI GALI ANUSVARA ONE..MON
18AB..18AF ; UNASSIGNED # <reserved>..<reserved>
18B0..18F5 ; PVALID # CAN SYL OY..CAN SYL CA
18F6..18FF ; UNASSIGNED # <reserved>..<reserved>
1900..191C ; PVALID # LIMBU VOW-CARRIER LET..LIMBU LET HA
191D..191F ; UNASSIGNED # <reserved>..<reserved>
1920..192B ; PVALID # LIMBU VOW SIGN A..LIMBU SUBJOIN LET
192C..192F ; UNASSIGNED # <reserved>..<reserved>
1930..193B ; PVALID # LIMBU SM LET KA..LIMBU SIGN SA-I
193C..193F ; UNASSIGNED # <reserved>..<reserved>
1940 ; FREE_PVAL # LIMBU SIGN LOO
1941..1943 ; UNASSIGNED # <reserved>..<reserved>
1944..1945 ; FREE_PVAL # LIMBU EXCLAM MARK..LIMBU QUEST MARK
1946..196D ; PVALID # LIMBU DIG ZERO..TAI LE LET AI
196E..196F ; UNASSIGNED # <reserved>..<reserved>
1970..1974 ; PVALID # TAI LE LET TONE-2..TAI LE LET TONE-
1975..197F ; UNASSIGNED # <reserved>..<reserved>
1980..19AB ; PVALID # NEW TAI LUE LET HIGH QA..NEW TAI LU
19AC..19AF ; UNASSIGNED # <reserved>..<reserved>
19B0..19C9 ; PVALID # NEW TAI LUE VOW SIGN VOW SHORT..NEW
19CA..19CF ; UNASSIGNED # <reserved>..<reserved>
19D0..19D9 ; PVALID # NEW TAI LUE DIG ZERO..NEW TAI DIG N
19DA ; DISALLOWED # NEW TAI LUE THAM
19DB..19DD ; UNASSIGNED # <reserved>..<reserved>
19DE..19FF ; FREE_PVAL # NEW TAI LUE SIGN LAE..KHMER SYM DAP
1A00..1A1B ; PVALID # BUGIN LET KA..BUGIN VOW SIGN AE
1A1C..1A1D ; UNASSIGNED # <reserved>..<reserved>
1A1E..1A1F ; FREE_PVAL # BUGIN PALLAWA..BUGIN END OF SECTION
1A20..1A5E ; PVALID # TAI THAM LET HIGH KA..TAI THAM CONS
1A5F ; UNASSIGNED # <reserved>
1A60..1A7C ; PVALID # TAI THAM SIGN SAKOT..TAI THAM SIGN
1A7D..1A7E ; UNASSIGNED # <reserved>..<reserved>
1A7F..1A89 ; PVALID # TAI THAM COMB CRYPT DOT..TAI THAM D
1A8A..1A8F ; UNASSIGNED # <reserved>..<reserved>
1A90..1A99 ; PVALID # TAI THAM THAM DIG ZERO..TAI THAM TH
1A9A..1A9F ; UNASSIGNED # <reserved>..<reserved>
1AA0..1AA6 ; FREE_PVAL # TAI THAM SIGN WIANG..TAI THAM SIGN
1AA7 ; PVALID # TAI THAM SIGN MAI YAMOK
1AA8..1AAD ; FREE_PVAL # TAI THAM SIGN KAAN..TAI THAM SIGN C
1AAE..1AFF ; UNASSIGNED # <reserved>..<reserved>
1B00..1B4B ; PVALID # BAL SIGN ULU RICEM..BAL LET ASYURA
1B4C..1B4F ; UNASSIGNED # <reserved>..<reserved>
1B50..1B59 ; PVALID # BAL DIG ZERO..BAL DIG NINE
1B5A..1B6A ; FREE_PVAL # BAL PANTI..BAL MUS SYM DANG
1B6B..1B73 ; PVALID # BAL MUS SYM COMB TEGEH..BAL MUS
1B74..1B7C ; FREE_PVAL # BAL MUS SYM RIGHT-HAND OPEN DUG
1B7D..1B7F ; UNASSIGNED # <reserved>..<reserved>
1B80..1BF3 ; PVALID # SUND SIGN PANYECEK..BATAK PANONGONAN
1BF4..1BFB ; UNASSIGNED # <reserved>..<reserved>
1BFC..1BFF ; FREE_PVAL # BATAK SYM BINDU NA METEK..BATAK SYM
1C00..1C37 ; PVALID # LEPCHA LET KA..LEPCHA SIGN NUKTA
1C38..1C3A ; UNASSIGNED # <reserved>..<reserved>
1C3B..1C3F ; FREE_PVAL # LEPCHA PUNCT TA-ROL..LEPCHA PUNCT T
1C40..1C49 ; PVALID # LEPCHA DIG ZERO..LEPCHA DIG NINE
1C4A..1C4C ; UNASSIGNED # <reserved>..<reserved>
1C4D..1C7D ; PVALID # LEPCHA LET TTA..OL CHIKI AHAD
1C7E..1C7F ; FREE_PVAL # OL CHIKI PUNCT MUCAAD..OL CHIKI PUN
1C80..1CBF ; UNASSIGNED # <reserved>..<reserved>
1CC0..1CC7 ; FREE_PVAL # SUNDA PUNCT BINDU SURYA..SUNDA PUNC
1CC8..1CCF ; UNASSIGNED # <reserved>..<reserved>
1CD0..1CD2 ; PVALID # VED TONE KARSHANA..VED TONE PRENKHA
1CD3 ; FREE_PVAL # VED SIGN NIHSHVASA
1CD4..1CF6 ; PVALID # VED SIGN YAJURVEDIC MID SVARITA..VE
1CF7..1CFF ; UNASSIGNED # <reserved>..<reserved>
1D00..1D2B ; PVALID # LAT LET SM CAP A..CYR LET SM
1D2C..1D2E ; FREE_PVAL # MOD LET CAP A..MOD LET C
1D2F ; PVALID # MOD LET CAP BARRED B
1D30..1D3A ; FREE_PVAL # MOD LET CAP D..MOD LET C
1D3B ; PVALID # MOD LET CAP REV N
1D3C..1D4D ; FREE_PVAL # MOD LET CAP O..MOD LET S
1D4E ; PVALID # MOD LET SM TURNED I
1D4F..1D6A ; FREE_PVAL # MOD LET SM K..GREEK SUB SMA
1D6B..1D77 ; PVALID # LAT SM LET UE..LAT SM LET TU
1D78 ; FREE_PVAL # MOD LET CYR EN
1D79..1D9A ; PVALID # LAT SM LET INSULAR G..LAT SM LE
1D9B..1DBF ; FREE_PVAL # MOD LET SM TURNED ALPHA..MOD
1DC0..1DE6 ; PVALID # COMB DOTTED GRAVE ACCENT..COMB LAT
1DE7..1DFB ; UNASSIGNED # <reserved>..<reserved>
1DFC..1E99 ; PVALID # COMB DOUBLE INV BREVE BEL..LAT SM L
1E9A ; FREE_PVAL # LAT SM LET A W R HALF RING
1E9B..1F15 ; PVALID # LAT SM LET LONG S W BOT ABOVE..GR
1F16..1F17 ; UNASSIGNED # <reserved>..<reserved>
1F18..1F1D ; FREE_PVAL # GREEK CAP LET EPSILON W PSILI..GRE
1F1E..1F1F ; UNASSIGNED # <reserved>..<reserved>
1F20..1F45 ; PVALID # GREEK SM LET ETA W PSILI..GREEK SMA
1F46..1F47 ; UNASSIGNED # <reserved>..<reserved>
1F48..1F4D ; FREE_PVAL # GREEK CAP LET OMICRON W PSILI..GRE
1F4E..1F4F ; UNASSIGNED # <reserved>..<reserved>
1F50..1F57 ; PVALID # GREEK SM LET UPSILON W PSILI..GREEK
1F58 ; UNASSIGNED # <reserved>
1F59 ; PVALID # GREEK CAP LET UPSILON W DASIA
1F5A ; UNASSIGNED # <reserved>
1F5B ; PVALID # GREEK CAP LET UPSILON W DASIA AND
1F5C ; UNASSIGNED # <reserved>
1F5D ; PVALID # GREEK CAP LET UPSILON W DASIA AND
1F5E ; UNASSIGNED # <reserved>
1F5F..1F7D ; PVALID # GREEK CAP LET UPSILON W DASIA A..GR
1F7E..1F7F ; UNASSIGNED # <reserved>..<reserved>
1F80..1F87 ; PVALID # GREEK SM LET ALPHA W PSILI AND YPOG
1F88..1F8F ; FREE_PVAL # GREEK CAP LET ALPHA W PSILI AND..GR
1F90..1F97 ; PVALID # GREEK SM LET ETA W PSILI AND YP..GR
1F98..1F9F ; FREE_PVAL # GREEK CAP LET ETA W PSILI AND P..GR
1FA0..1FA7 ; PVALID # GREEK SM LET OMEGA W PSILI AND ..GR
1FA8..1FAF ; FREE_PVAL # GREEK CAPL LET OMEGA W PSILI AN..GR
1FB0..1FB4 ; PVALID # GREEK SM LET ALPHA W VRACHY..GREEK
1FB5 ; UNASSIGNED # <reserved>
1FB6..1FBB ; PVALID # GREEK SM LET ALPHA W PERISPOMEN..GR
1FBC..1FBD ; FREE_PVAL # GREEK CAP LET ALPHA W PROSGEGRA..GR
1FBE ; PVALID # GREEK PROSGEGRAMMENI
1FBF..1FC1 ; FREE_PVAL # GREEK PSILI..GREEK DIALYTIKA AND PE
1FC2..1FC4 ; PVALID # GREEK SM LET ETA W VARIA AND YP..GR
1FC5 ; UNASSIGNED # <reserved>
1FC6..1FCB ; PVALID # GREEK SM LET ETA W PERISPOMENI..GR
1FCC..1FCF ; FREE_PVAL # GREEK CAP LET ETA W PROSGEGRAM..GR
1FD0..1FD3 ; PVALID # GREEK SM LET IOTA W VRACHY..GREEK S
1FD4..1FD5 ; UNASSIGNED # <reserved>..<reserved>
1FD6..1FDB ; PVALID # GREEK SM LET IOTA W PERISPOMENI..GR
1FDC ; UNASSIGNED # <reserved>
1FDD..1FDF ; FREE_PVAL # GREEK DASIA AND VARIA..GREEK DASIA
1FE0..1FEC ; PVALID # GREEK SM LET UPSILON W VRACHY..GREE
1FED..1FEF ; FREE_PVAL # GREEK DIALYTIKA AND VARIA..GREEK VA
1FF0..1FF1 ; UNASSIGNED # <reserved>..<reserved>
1FF2..1FF4 ; FREE_PVAL # GREEK SM LET OMEGA W VARIA AND YPOG
1FF5 ; UNASSIGNED # <reserved>
1FF6..1FFB ; PVALID # GREEK SM LET OMEGA W PERISPOMEN..GR
1FFC..1FFE ; FREE_PVAL # GREEK CAP LET OMEGA W PROSGEGRA..GR
1FFF ; UNASSIGNED # <reserved>
2000..200A ; FREE_PVAL # EN QUAD..HAIR SPACE
200B ; DISALLOWED # ZERO WIDTH SPACE
200C..200D ; CONTEXTJ # ZERO WIDTH NON-JOINER..ZERO WIDTH J
200E..200F ; DISALLOWED # LEFT-TO-RIGHT MARK..RIGHT-TO-LEFT M
2010..2027 ; FREE_PVAL # HYPHEN..HYPHENATION POINT
2028..202E ; DISALLOWED # LINE SEP..RIGHT-TO-LEFT OVERRIDE
202F..205F ; FREE_PVAL # NARROW NO-BREAK SPACE..MED MATH SP
2060..2064 ; DISALLOWED # WORD JOINER..INVISIBLE PLUS
2065 ; UNASSIGNED # <reserved>
2066..206F ; DISALLOWED # LEFT-TO-RIGHT IS..NOM DIGIT SHAPES
2070..2071 ; FREE_PVAL # SUPER ZERO..SUPER LAT SM LET I
2072..2073 ; UNASSIGNED # <reserved>..<reserved>
2074..208E ; FREE_PVAL # SUPER FOUR..SUB RIGHT PARENTHESIS
208F ; UNASSIGNED # <reserved>
2090..209C ; FREE_PVAL # LAT SUB SM LET A..LAT SUB SM LET T
209D..209F ; UNASSIGNED # <reserved>..<reserved>
20A0..20BA ; FREE_PVAL # EURO-CURRENCY SIGN..TURKISH LIRA SI
20BB..20CF ; UNASSIGNED # <reserved>..<reserved>
20D0..20DC ; PVALID # COMB LEFT HARPOON ABOVE..COMB FOUR
20DD..20E0 ; FREE_PVAL # COMB ENC CIRC..COMB ENC CIRC BACKS
20E1 ; PVALID # COMB L R ARROW ABOVE
20E2..20E4 ; FREE_PVAL # COMB ENC SCREEN..COMB ENC UPWARD PO
20E5..20F0 ; PVALID # COMB REV SOLIDUS OVERLAY..COMB ASTE
20F1..20FF ; UNASSIGNED # <reserved>..<reserved>
2100..2129 ; FREE_PVAL # ACCOUNT OF..TURNED GREEK SM LET IOT
212A..212B ; PVALID # KELVIN SIGN..ANGSTROM SIGN
212C..2131 ; FREE_PVAL # SCRIPT CAP C..SCRIPT CAP F
2132 ; PVALID # TURNED CAP F
2133..214D ; FREE_PVAL # SCRIPT CAP M..AKTIESELSKAB
214E ; PVALID # TURNED SM F
214F..2182 ; FREE_PVAL # SYM FOR SAMAR SOURCE..ROM NUM TEN T
2183..2184 ; PVALID # ROM NUM REV ONE HUNDRED..LAT SM LET
2185..2189 ; FREE_PVAL # ROM NUM SIX LATE FORM..VULGAR FRACT
218A..218F ; UNASSIGNED # <reserved>..<reserved>
2190..23F3 ; FREE_PVAL # LEFTWARDS ARROW..HOURGLASS W FLO
23F4..23FF ; UNASSIGNED # <reserved>..<reserved>
2400..2426 ; FREE_PVAL # SYM FOR NULL..SYM FOR SUB FORM
2427..243F ; UNASSIGNED # <reserved>..<reserved>
2440..244A ; FREE_PVAL # OCR HOOK..OCR DOUBLE BACKSLASH
244B..245F ; UNASSIGNED # <reserved>..<reserved>
2460..26FF ; FREE_PVAL # CIRCLED DIG ONE..WHITE FLAG W HORIZ
2700 ; UNASSIGNED # <reserved>
2701..2B4C ; FREE_PVAL # UP BLADE SCISSORS..RIGHTWARDS ARROW
2B4D..2B4F ; UNASSIGNED # <reserved>..<reserved>
2B50..2B59 ; FREE_PVAL # WHITE MEDIUM STAR..HEAVY CIRCLED SA
2B5A..2BFF ; UNASSIGNED # <reserved>..<reserved>
2C00..2C2E ; PVALID # GLAG CAP LET AZU..GLAG CA
2C2F ; UNASSIGNED # <reserved>
2C30..2C5E ; PVALID # GLAG SM LET AZU..GLAG SMAL
2C5F ; UNASSIGNED # <reserved>
2C60..2C7B ; PVALID # LAT CAP LET L W DOUBLE BAR..LAT SM
2C7C..2C7D ; FREE_PVAL # LAT SUB SM LET J..MOD LET CAP V
2C7E..2CE4 ; PVALID # LAT CAP LET S W SWASH TAIL..COPT SY
2CE5..2CEA ; FREE_PVAL # COPT SYM MI RO..COPT SYM SHIMA SIMA
2CEB..2CF3 ; PVALID # COPT CAP LET CRYPTOGRAMMIC SHEI..CO
2CF4..2CF8 ; UNASSIGNED # <reserved>..<reserved>
2CF9..2CFF ; FREE_PVAL # COPT OLD NUB FULL STOP..COPT MORPHO
2D00..2D25 ; PVALID # GEORG SM LET AN..GEORG SM LET
2D26 ; UNASSIGNED # <reserved>
2D27 ; PVALID # GEORG SM LET YN
2D28..2D2C ; UNASSIGNED # <reserved>..<reserved>
2D2D ; PVALID # GEORG SM LET AEN
2D2E..2D2F ; UNASSIGNED # <reserved>..<reserved>
2D30..2D67 ; PVALID # TIFINAGH LET YA..TIFINAGH LETTER YO
2D68..2D6E ; UNASSIGNED # <reserved>..<reserved>
2D6F..2D70 ; FREE_PVAL # TIFINAGH MOD LET LABIALIZATION MARK
2D71..2D7E ; UNASSIGNED # <reserved>..<reserved>
2D7F..2D96 ; PVALID # TIFINAGH CONS JOINER..ETHI SYL GGW
2D97..2D9F ; UNASSIGNED # <reserved>..<reserved>
2DA0..2DA6 ; PVALID # ETHI SYL SSA..ETHI SYL SSO
2DA7 ; UNASSIGNED # <reserved>
2DA8..2DAE ; PVALID # ETHI SYL CCA..ETHI SYL CCO
2DAF ; UNASSIGNED # <reserved>
2DB0..2DB6 ; PVALID # ETHI SYL ZZA..ETHI SYL ZZO
2DB7 ; UNASSIGNED # <reserved>
2DB8..2DBE ; PVALID # ETHI SYL CCHA..ETHI SYL CC
2DBF ; UNASSIGNED # <reserved>
2DC0..2DC6 ; PVALID # ETHI SYL QYA..ETHI SYL QYO
2DC7 ; UNASSIGNED # <reserved>
2DC8..2DCE ; PVALID # ETHI SYL KYA..ETHI SYL KYO
2DCF ; UNASSIGNED # <reserved>
2DD0..2DD6 ; PVALID # ETHI SYL XYA..ETHI SYL XYO
2DD7 ; UNASSIGNED # <reserved>
2DD8..2DDE ; PVALID # ETHI SYL GYA..ETHI SYL GYO
2DDF ; UNASSIGNED # <reserved>
2DE0..2DFF ; PVALID # COMB CYR LET BE..COMB CYRI
2E00..2E2E ; FREE_PVAL # RIGHT ANGLE SUB MARK..REV QUEST MAR
2E2F ; PVALID # VERT TILDE
2E30..2E3B ; FREE_PVAL # RING PNT..THREE-EM DASH
2E3C..2E7F ; UNASSIGNED # <reserved>..<reserved>
2E80..2E99 ; FREE_PVAL # CJK RAD REPEAT..CJK RAD RAP
2E9A ; UNASSIGNED # <reserved>
2E9B..2EF3 ; FREE_PVAL # CJK RAD CHOKE..CJK RAD C-SIMPLIFIED
2EF4..2EFF ; UNASSIGNED # <reserved>..<reserved>
2F00..2FD5 ; FREE_PVAL # KANGXI RAD ONE..KANGXI RAD FLUTE
2FD6..2FEF ; UNASSIGNED # <reserved>..<reserved>
2FF0..2FFB ; FREE_PVAL # IDEO DESC CHAR LEFT TO RIGHT..IDEO
2FFC..2FFF ; UNASSIGNED # <reserved>..<reserved>
3000..3004 ; FREE_PVAL # IDEO SPACE..JAPAN INDUST STAND
3005..3007 ; PVALID # IDEO ITER MARK..IDEO NUMB ZERO
3008..3029 ; FREE_PVAL # LEFT ANGLE BRACKET..HANGZH NUM NINE
302A..302D ; PVALID # IDEO LEVEL TONE MARK..IDEO ENT
302E..302F ; DISALLOWED # HANGUL SING DOT TONE MARK..WAVY DAS
3030 ; FREE_PVAL # WAVY DASH
3031..3035 ; DISALLOWED # VERT KANA REP MARK..VERT KANA REP M
3036..303A ; FREE_PVAL # CIRCLED POSTAL MARK..HANGZH NUM THI
303B ; DISALLOWED # VERT IDEO ITER MARK
303C ; PVALID # MASU MARK
303D..303F ; FREE_PVAL # PART ALTER MARK..IDEO HALF FILL
3040 ; UNASSIGNED # <reserved>
3041..3096 ; PVALID # HIRAGANA LET SM A..HIRAGANA LET SMA
3097..3098 ; UNASSIGNED # <reserved>..<reserved>
3099..309A ; PVALID # COMB KAT-HIR VOICED SOUND
309B..309C ; FREE_PVAL # KAT-HIR VOICED SOUND MARK..KAT-HIR
309D..309E ; PVALID # HIRAGANA ITER MARK..HIRAGANA VOICED
309F..30A0 ; FREE_PVAL # HIRAGANA DIGRAPH YORI..KAT-HIR DOU
30A1..30FA ; PVALID # KATAKANA LET SM A..KATAKANA LET VO
30FB ; CONTEXTO # KATAKANA MIDDLE DOT
30FC..30FE ; PVALID # KAT-HIR PROLONGED SOUND MARK..KATA
30FF ; FREE_PVAL # KATAKANA DIGRAPH KOTO
3100..3104 ; UNASSIGNED # <reserved>..<reserved>
3105..312D ; PVALID # BOPOMOFO LET B..BOPOMOFO LET IH
312E..3130 ; UNASSIGNED # <reserved>..<reserved>
3131..3163 ; FREE_PVAL # HANGUL LET KIYEOK..HANGUL LET I
3164 ; DISALLOWED # HANGUL FILLER
3165..318E ; FREE_PVAL # HANGUL LET SSANGNIEUN..HANGUL LET
318F ; UNASSIGNED # <reserved>
3190..319F ; FREE_PVAL # IDEO ANNO LINK MARK..IDEO ANNO MAN
31A0..31BA ; PVALID # BOPOMOFO LET BU..BOPOMOFO LET ZY
31BB..31BF ; UNASSIGNED # <reserved>..<reserved>
31C0..31E3 ; FREE_PVAL # CJK STROKE T..CJK STROKE Q
31E4..31EF ; UNASSIGNED # <reserved>..<reserved>
31F0..31FF ; PVALID # KATAKANA LET SM KU..KATAKANA LET SM
3200..321E ; FREE_PVAL # PAREN HANGUL KIYEOK..PAREN KOREAN C
321F ; UNASSIGNED # <reserved>
3220..32FE ; FREE_PVAL # PAREN IDEO ONE..CIRCLED KATAKANA WO
32FF ; UNASSIGNED # <reserved>
3300..33FF ; FREE_PVAL # SQUARE APAATO..SQUARE GAL
3400..4DB5 ; PVALID # <CJK Ideograph Extension A>
4DB6..4DBF ; UNASSIGNED # <reserved>..<reserved>
4DC0..4DFF ; FREE_PVAL # HEX FOR THE CREATIVE HEAVEN..HEX FO
4E00..9FCC ; PVALID # <CJK Ideograph>
9FCD..9FFF ; UNASSIGNED # <reserved>..<reserved>
A000..A48C ; PVALID # YI SYL IT..YI SYL YYR
A48D..A48F ; UNASSIGNED # <reserved>..<reserved>
A490..A4C6 ; FREE_PVAL # YI RAD QOT..YI RAD KE
A4C7..A4CF ; UNASSIGNED # <reserved>..<reserved>
A4D0..A4FD ; PVALID # LISU LET BA..LISU LET TONE MYA JEU
A4FE..A4FF ; FREE_PVAL # LISU PUNCT COMMA..LISU PUNCT FUL
A500..A60C ; PVALID # VAI SYL EE..VAI SYL LENENER
A60D..A60F ; FREE_PVAL # VAI COMMA..VAI QUEST MARK
A610..A62B ; PVALID # VAI SYL NDOLE FA..VAI SYL NDOLE DO
A62C..A63F ; UNASSIGNED # <reserved>..<reserved>
A640..A66F ; PVALID # CYR CAP LET ZEMLYA..COMB CYR VZMET
A670..A673 ; FREE_PVAL # COMB CYR TEN MILLIONS SIGN..SLAVON
A674..A67D ; PVALID # COMB CYR KAVYKA..COMB CYR PAYEROK
A67E ; FREE_PVAL # CYR KAVYKA
A67F..A697 ; PVALID # CYR PAYEROK..CYR SM LET SHWE
A698..A69E ; UNASSIGNED # <reserved>..<reserved>
A69F..A6E5 ; PVALID # COMB CYR LET IOTIFIED E..BAMUM LET
A6E6..A6EF ; FREE_PVAL # BAMUM LET MO..BAMUM LET KOGHOM
A6F0..A6F1 ; PVALID # BAMUM COMB MARK KOQNDON..BAMUM COMB
A6F2..A6F7 ; FREE_PVAL # BAMUM NJAEMLI..BAMUM QUEST MARK
A6F8..A6FF ; UNASSIGNED # <reserved>..<reserved>
A700..A716 ; FREE_PVAL # MOD LET CHIN TONE YIN PING..MOD
A717..A71F ; PVALID # MOD LET DOT VERT BAR..MOD L
A720..A721 ; FREE_PVAL # MOD LET STRESS AND HIGH TONE..MOD
A722..A76F ; PVALID # LAT CAP LET EGYPT ALEF..LAT SM LET
A770 ; FREE_PVAL # MODIFIER LETTER US
A771..A788 ; PVALID # LATIN SMALL LETTER DUM..MOD LET LOW
A789..A78A ; FREE_PVAL # MOD LET COLON..MOD LET SH EQUALS SI
A78B..A78E ; PVALID # LAT SM LET SALTILLO..LAT SM LET L W
A78F ; UNASSIGNED # <reserved>
A790..A793 ; PVALID # LAT CAP LET N W DESC..LAT SM LET C
A794..A79F ; UNASSIGNED # <reserved>..<reserved>
A7A0..A7AA ; PVALID # LAT CAP LET G W OBLIQUE STROKE..LAT
A7AB..A7F7 ; UNASSIGNED # <reserved>..<reserved>
A7F8..A7F9 ; FREE_PVAL # MOD LET CAP H W STROKE..MOD LET SM
A7FA..A827 ; PVALID # LAT LET SM CAP TURNED M..SYLOTI NA
A828..A82B ; FREE_PVAL # SYLOTI NAGRI POET MARK-1..SYLOTI NA
A82C..A82F ; UNASSIGNED # <reserved>..<reserved>
A830..A839 ; FREE_PVAL # N INDIC FRACT ONE QUART..N INDIC QU
A83A..A83F ; UNASSIGNED # <reserved>..<reserved>
A840..A873 ; PVALID # PHAGS-PA LET KA..PHAGS-PA LET CANDR
A874..A877 ; FREE_PVAL # PHAGS-PA SINGLE HEAD MARK..PHAGS-PA
A878..A87F ; UNASSIGNED # <reserved>..<reserved>
A880..A8C4 ; PVALID # SAUR SIGN ANUSVARA..SAUR SIGN VIRAM
A8C5..A8CD ; UNASSIGNED # <reserved>..<reserved>
A8CE..A8CF ; FREE_PVAL # SAUR DANDA..SAUR DOUBLE DANDA
A8D0..A8D9 ; PVALID # SAUR DIG ZERO..SAUR DIG NINE
A8DA..A8DF ; UNASSIGNED # <reserved>..<reserved>
A8E0..A8F7 ; PVALID # COMB DEVAN DIG ZERO..DEVAN SIGN CAN
A8F8..A8FA ; FREE_PVAL # DEVAN SIGN PUSHPIKA..DEVAN CARET
A8FB ; PVALID # DEVAN HEADSTROKE
A8FC..A8FF ; UNASSIGNED # <reserved>..<reserved>
A900..A92D ; PVALID # KAYAH LI DIG ZERO..KAYAH LI TONE CA
A92E..A92F ; FREE_PVAL # KAYAH LI SIGN CWI..KAYAH LI SIGN SH
A930..A953 ; PVALID # REJANG LET KA..REJANG VIRAMA
A954..A95E ; UNASSIGNED # <reserved>..<reserved>
A95F ; FREE_PVAL # REJANG SECTION MARK
A960..A97C ; DISALLOWED # HANGUL CHO TIKEUT-MIUEM..HANGUL CHO
A97D..A97F ; UNASSIGNED # <reserved>..<reserved>
A980..A9C0 ; PVALID # JAV SIGN PANYANGGA..JAV PANGKON
A9C1..A9CD ; FREE_PVAL # JAV LEFT RERENGGAN..JAV TURNED PADA
A9CE ; UNASSIGNED # <reserved>
A9CF..A9D9 ; PVALID # JAV PANGRANGKEP..JAV DIG NINE
A9DA..A9DD ; UNASSIGNED # <reserved>..<reserved>
A9DE..A9DF ; FREE_PVAL # JAV PADA TIRTA TUMETES..JAV PADA I
A9E0..A9FF ; UNASSIGNED # <reserved>..<reserved>
AA00..AA36 ; PVALID # CHAM LET A..CHAM CONS SIGN WA
AA37..AA3F ; UNASSIGNED # <reserved>..<reserved>
AA40..AA4D ; PVALID # CHAM LET FIN K..CHAM CONS SIGN FIN
AA4E..AA4F ; UNASSIGNED # <reserved>..<reserved>
AA50..AA59 ; PVALID # CHAM DIG ZERO..CHAM DIG NINE
AA5A..AA5B ; UNASSIGNED # <reserved>..<reserved>
AA5C..AA5F ; FREE_PVAL # CHAM PUNCT SPIRAL..CHAM PUNCT TR
AA60..AA76 ; PVALID # MYAN LET KHAMTI GA..MYAN LOGOGRAM K
AA77..AA79 ; FREE_PVAL # MYAN SYM AITON EXCLAM..MYAN SYM AIT
AA7A..AA7B ; PVALID # MYAN LET AITON RA..MYAN SIGN PAO KA
AA7C..AA7F ; UNASSIGNED # <reserved>..<reserved>
AA80..AAC2 ; PVALID # TAI VIET LET LOW KO..TAI VIET TONE
AAC3..AADA ; UNASSIGNED # <reserved>..<reserved>
AADB..AADD ; PVALID # TAI VIET SYM KON..TAI VIET SYM SAM
AADE..AADF ; FREE_PVAL # TAI VIET SYM HO HOI..TAI VIET SYM K
AAE0..AAEF ; PVALID # MEETEI MAYEK LET E..MEETEI MAYEK VO
AAF0..AAF1 ; FREE_PVAL # MEETEI MAYEK CHEIKHAN..MEETEI MAYEK
AAF2..AAF6 ; PVALID # MEETEI MAYEK ANJI..MEETEI MAYEK VIR
AAF7..AB00 ; UNASSIGNED # <reserved>..<reserved>
AB01..AB06 ; PVALID # ETHI SYL TTHU..ETHI SYL TTHO
AB07..AB08 ; UNASSIGNED # <reserved>..<reserved>
AB09..AB0E ; PVALID # ETHI SYL DDHAA..ETHI SYL DDHO
AB0F..AB10 ; UNASSIGNED # <reserved>..<reserved>
AB11..AB16 ; PVALID # ETHI SYL DZU..ETHI SYL DZO
AB17..AB1F ; UNASSIGNED # <reserved>..<reserved>
AB20..AB26 ; PVALID # ETHI SYL CCHHA..ETHI SYL CCHHO
AB27 ; UNASSIGNED # <reserved>..<reserved>
AB28..AB2E ; PVALID # ETHI SYL BBAA..ETHI SYL BBO
AB2F..ABBF ; UNASSIGNED # <reserved>..<reserved>
ABC0..ABEA ; PVALID # MEETEI MAYEK LET KOK..MEETEI MAYEK
ABEB ; FREE_PVAL # MEETEI MAYEK CHEIKHEI
ABEC..ABED ; PVALID # MEETEI MAYEK LUM IYEK..MEETEI MAYEK
ABEE..ABEF ; UNASSIGNED # <reserved>..<reserved>
ABF0..ABF9 ; PVALID # MEETEI MAYEK DIG ZERO..MEETEI MAYEK
ABFA..ABFF ; UNASSIGNED # <reserved>..<reserved>
AC00..D7A3 ; PVALID # <Hangul Syllable>
D7A4..D7AF ; UNASSIGNED # <reserved>..<reserved>
D7B0..D7C6 ; DISALLOWED # HANGUL JUNG O-YEO..HANGUL JUNG ARAE
D7C7..D7CA ; UNASSIGNED # <reserved>..<reserved>
D7CB..D7FB ; DISALLOWED # HANGUL JONG NIEUN-RIEUL..HANGUL JON
D7FC..D7FF ; UNASSIGNED # <reserved>..<reserved>
D800..F8FF ; DISALLOWED # <Non Private Use High Surrogate>
F900..FA6D ; PVALID # CJK COMP IDEO-F900..CJK COMP IDEO
FA6E..FA6F ; UNASSIGNED # <reserved>..<reserved>
FA70..FAD9 ; PVALID # CJK COMP IDEO-FA70..CJK COMP IDEO
FADA..FAFF ; UNASSIGNED # <reserved>..<reserved>
FB00..FB06 ; FREE_PVAL # LAT SM LIG FF..LAT SM LIG ST
FB07..FB12 ; UNASSIGNED # <reserved>..<reserved>
FB13..FB17 ; FREE_PVAL # ARMENIAN SM LIG MEN NOW..ARMENIAN SM
FB18..FB1C ; UNASSIGNED # <reserved>..<reserved>
FB1D..FB1F ; PVALID # HEBR LET YOD W HIRIQ..HEBR LIG YID Y
FB20..FB29 ; FREE_PVAL # HEBR LET ALT AYIN..HEB LET ALT PLUS
FB2A..FB36 ; PVALID # HEBR LET SHIN W SHIN DOT..HEBR LET Z
FB37 ; UNASSIGNED # <reserved>
FB38..FB3C ; PVALID # HEBR LET TET W DAGESH..HEBR LET
FB3D ; UNASSIGNED # <reserved>
FB3E ; PVALID # HEBR LET MEM W DAGESH
FB3F ; UNASSIGNED # <reserved>
FB40..FB41 ; PVALID # HEBR LET NUN W DAGESH..HEBR LET
FB42 ; UNASSIGNED # <reserved>
FB43..FB44 ; PVALID # HEBR LET FIN PE W DAGESH..HEBR L
FB45 ; UNASSIGNED # <reserved>
FB46..FB4E ; PVALID # HEBR LET TSADI W DAGESH..HEBR LET P
FB4F..FBC1 ; FREE_PVAL # HEBR LIG ALEF LAMED..ARAB SYM S
FBC2..FBD2 ; UNASSIGNED # <reserved>..<reserved>
FBD3..FD3F ; FREE_PVAL # ARAB LET NG ISO FORM..ORNATE RIGHT
FD40..FD4F ; UNASSIGNED # <reserved>..<reserved>
FD50..FD8F ; FREE_PVAL # ARAB LIG TEH W JEEM W MEEM INIT
FD90..FD91 ; UNASSIGNED # <reserved>..<reserved>
FD92..FDC7 ; FREE_PVAL # ARAB LIG MEEM W JEEM W KHAH INI
FDC8..FDCF ; UNASSIGNED # <reserved>..<reserved>
FDD0..FDEF ; DISALLOWED # <noncharacter>..<noncharacter>
FDF0..FDFD ; FREE_PVAL # ARAB LIG SALLA USED..ARAB LIG BISMI
FDFE..FDFF ; UNASSIGNED # <reserved>..<reserved>
FE00..FE0F ; DISALLOWED # VAR SEL-1..VAR SEL-16
FE10..FE19 ; FREE_PVAL # PRES FORM FOR VERT COMMA..PRES FORM
FE1A..FE1F ; UNASSIGNED # <reserved>..<reserved>
FE20..FE26 ; PVALID # COMB LIG LEFT HALF..COMB CONJ MACRO
FE27..FE2F ; UNASSIGNED # <reserved>..<reserved>
FE30..FE52 ; FREE_PVAL # PRES FORM FOR VERT TWO DOT LEAD..SM
FE53 ; UNASSIGNED # <reserved>
FE54..FE66 ; FREE_PVAL # SM SEMICOLON..SM EQUALS SIGN
FE67 ; UNASSIGNED # <reserved>
FE68..FE6B ; FREE_PVAL # SM REV SOLIDUS..SM COMM AT
FE6C..FE6F ; UNASSIGNED # <reserved>..<reserved>
FE70..FE72 ; FREE_PVAL # ARAB FATHATAN ISO FORM..ARAB DAMMAT
FE73 ; PVALID # ARAB TAIL FRAGMENT
FE74 ; FREE_PVAL # ARAB KASRATAN ISO FORM
FE75 ; UNASSIGNED # <reserved>
FE76..FEFC ; FREE_PVAL # ARAB FATHA ISO FORM..ARAB LIG LAM W
FEFD..FEFE ; UNASSIGNED # <reserved>..<reserved>
FEFF ; DISALLOWED # ZERO WIDTH NO-BREAK SPACE
FF00 ; UNASSIGNED # <reserved>
FF01..FF9F ; FREE_PVAL # FULLW EXCLAM MARK..HALFW KATA SE
FFA0 ; DISALLOWED # HALFW HANGUL FILLER
FFA1..FFBE ; FREE_PVAL # HALFW HANGUL LET KIYEOK..HALFW H
FFBF..FFC1 ; UNASSIGNED # <reserved>..<reserved>
FFC2..FFC7 ; FREE_PVAL # HALFW HANGUL LET A..HALFW HANGUL
FFC8..FFC9 ; UNASSIGNED # <reserved>..<reserved>
FFCA..FFCF ; FREE_PVAL # HALFW HANGUL LET YEO..HALFW HANGU
FFD0..FFD1 ; UNASSIGNED # <reserved>..<reserved>
FFD2..FFD7 ; FREE_PVAL # HALFW HANGUL LET YO..HALFW HANGUL
FFD8..FFD9 ; UNASSIGNED # <reserved>..<reserved>
FFDA..FFDC ; FREE_PVAL # HALFW HANGUL LET EU..HALFW HANGUL
FFDD..FFDF ; UNASSIGNED # <reserved>..<reserved>
FFE0..FFE6 ; FREE_PVAL # FULLW CENT SIGN..FULLW WON SIGN
FFE7 ; UNASSIGNED # <reserved>
FFE8..FFEE ; FREE_PVAL # HALFW FORMS LIGHT VERT..HALFW WH
FFEF..FFF8 ; UNASSIGNED # <reserved>..<reserved>
FFF9..FFFB ; DISALLOWED # INTERL ANNO ANCHOR..INTERL ANNO TER
FFFC..FFFD ; FREE_PVAL # OBJECT REPL CHAR..REPL CHAR
FFFE..FFFF ; DISALLOWED # <noncharacter>..<noncharacter>
10000..1000B; PVALID # LIN B SYL B008 A..LIN B SYL
1000C ; UNASSIGNED # <reserved>
1000D..10026; PVALID # LIN B SYL B036 JO..LIN B SYL
10027 ; UNASSIGNED # <reserved>
10028..1003A; PVALID # LIN B SYL B060 RA..LIN B SYL
1003B ; UNASSIGNED # <reserved>
1003C..1003D; PVALID # LIN B SYL B017 ZA..LIN B SYL
1003E ; UNASSIGNED # <reserved>
1003F..1004D; PVALID # LIN B SYL B020 ZO..LIN B SYL
1004E..1004F; UNASSIGNED # <reserved>..<reserved>
10050..1005D; PVALID # LIN B SYM B018..LIN B SYM B089
1005E..1007F; UNASSIGNED # <reserved>..<reserved>
10080..100FA; PVALID # LIN B IDEO B100 MAN..LIN B IDEO
100FB..100FF; UNASSIGNED # <reserved>..<reserved>
10100..10102; FREE_PVAL # AEG WORD SEP LINE..AEG CHECK MAR
10103..10106; UNASSIGNED # <reserved>..<reserved>
10107..10133; FREE_PVAL # AEG NUM ONE..AEG NUM NINETY THOU
10134..10136; UNASSIGNED # <reserved>..<reserved>
10137..1018A; FREE_PVAL # AEG WEIGHT BASE UNIT..GREEK ZERO SI
1018B..1018F; UNASSIGNED # <reserved>..<reserved>
10190..1019B; FREE_PVAL # ROM SEXTANS SIGN..ROM CENTURIAL SIG
1019C..101CF; UNASSIGNED # <reserved>..<reserved>
101D0..101FC; FREE_PVAL # PHAISTOS DISC SIGN PED..PHAISTOS DI
101FD ; PVALID # PHAISTOS DISC SIGN COMB OBLIQUE STR
101FE..1027F; UNASSIGNED # <reserved>..<reserved>
10280..1029C; PVALID # LYCIAN LET A..LYCIAN LET X
1029D..1029F; UNASSIGNED # <reserved>..<reserved>
102A0..102D0; PVALID # CARIAN LET A..CARIAN LET UUU3
102D1..102FF; UNASSIGNED # <reserved>..<reserved>
10300..1031E; PVALID # OLD ITAL LET A..OLD ITAL LET UU
1031F ; UNASSIGNED # <reserved>
10320..10323; FREE_PVAL # OLD ITAL NUM ONE..OLD ITAL NUM F
10324..1032F; UNASSIGNED # <reserved>..<reserved>
10330..10340; PVALID # GOTH LET AHSA..GOTH LET PAIRTHRA
10341 ; FREE_PVAL # GOTH LET NINETY
10342..10349; PVALID # GOTH LET RAIDA..GOTH LET OTHAL
1034A ; FREE_PVAL # GOTH LET NINE HUNDRED
1034B..1037F; UNASSIGNED # <reserved>..<reserved>
10380..1039D; PVALID # UGAR LET ALPA..UGAR LET SSU
1039E ; UNASSIGNED # <reserved>
1039F ; FREE_PVAL # UGAR WORD DIVIDER
103A0..103C3; PVALID # OLD PERS SIGN A..OLD PERS SIGN HA
103C4..103C7; UNASSIGNED # <reserved>..<reserved>
103C8..103CF; PVALID # OLD PERS SIGN AURAMAZDAA..OLD PERS
103D0..103D5; FREE_PVAL # OLD PERS WORD DIVIDER..OLD PERS NUM
103D6..103FF; UNASSIGNED # <reserved>..<reserved>
10400..1049D; PVALID # DESERET CAP LET LONG I..OSMANYA LET
1049E..1049F; UNASSIGNED # <reserved>..<reserved>
104A0..104A9; PVALID # OSMANYA DIG ZERO..OSMANYA DIG NINE
104AA..107FF; UNASSIGNED # <reserved>..<reserved>
10800..10805; PVALID # CYPRIOT SYL A..CYPRIOT SYL JA
10806..10807; UNASSIGNED # <reserved>..<reserved>
10808 ; PVALID # CYPRIOT SYL JO
10809 ; UNASSIGNED # <reserved>
1080A..10835; PVALID # CYPRIOT SYL KA..CYPRIOT SYL WO
10836 ; UNASSIGNED # <reserved>
10837..10838; PVALID # CYPRIOT SYL XA..CYPRIOT SYL XE
10839..1083B; UNASSIGNED # <reserved>..<reserved>
1083C ; PVALID # CYPRIOT SYL ZA
1083D..1083E; UNASSIGNED # <reserved>..<reserved>
1083F..10855; PVALID # CYPRIOT SYL ZO..IMP ARAM LET TAW
10856 ; UNASSIGNED # <reserved>
10857..1085F; FREE_PVAL # IMP ARAM SECT SIGN..IMP ARAM
10860..108FF; UNASSIGNED # <reserved>..<reserved>
10900..10915; PVALID # PHOEN LET ALF..PHOEN LET TAU
10916..1091B; FREE_PVAL # PHOEN NUM ONE..PHOEN NUM THR
1091C..1091E; UNASSIGNED # <reserved>..<reserved>
1091F ; FREE_PVAL # PHOEN WORD SEP
10920..10939; PVALID # LYDIAN LET A..LYDIAN LET C
1093A..1093E; UNASSIGNED # <reserved>..<reserved>
1093F ; FREE_PVAL # LYDIAN TRIANGULAR MARK
10940..1097F; UNASSIGNED # <reserved>..<reserved>
10980..109B7; PVALID # MERO HIER LET A..MERO CURS LET
109B8..109BD; UNASSIGNED # <reserved>..<reserved>
109BE..109BF; PVALID # MERO CURS LOG RMT..MERO CURS L
109C0..109FF; UNASSIGNED # <reserved>..<reserved>
10A00..10A03; PVALID # KHARO LET A..KHARO VOW SIGN V
10A04 ; UNASSIGNED # <reserved>
10A05..10A06; PVALID # KHARO VOW SIGN E..KHARO VOW SI
10A07..10A0B; UNASSIGNED # <reserved>..<reserved>
10A0C..10A13; PVALID # KHARO VOW LEN MARK..KHARO LET
10A14 ; UNASSIGNED # <reserved>
10A15..10A17; PVALID # KHARO LET CA..KHARO LET JA
10A18 ; UNASSIGNED # <reserved>
10A19..10A33; PVALID # KHARO LET NYA..KHARO LET TTT
10A34..10A37; UNASSIGNED # <reserved>..<reserved>
10A38..10A3A; PVALID # KHARO SIGN BAR ABOVE..KHARO SIGN D
10A3B..10A3E; UNASSIGNED # <reserved>..<reserved>
10A3F ; PVALID # KHARO VIRAMA
10A40..10A47; FREE_PVAL # KHARO DIG ONE..KHARO NUM ONE
10A48..10A4F; UNASSIGNED # <reserved>..<reserved>
10A50..10A58; FREE_PVAL # KHARO PUNCT DOT..KHARO PUNCT
10A59..10A5F; UNASSIGNED # <reserved>..<reserved>
10A60..10A7C; PVALID # OLD S ARAB LET HE..OLD SOUTH ARAB
10A7D..10A7F; FREE_PVAL # OLD S ARAB NUM ONE..OLD SOUTH ARAB
10A80..10AFF; UNASSIGNED # <reserved>..<reserved>
10B00..10B35; PVALID # AVESTAN LET A..AVESTAN LET HE
10B36..10B38; UNASSIGNED # <reserved>..<reserved>
10B39..10B3F; FREE_PVAL # AVESTAN ABBR MARK..LARGE ONE RING O
10B40..10B55; PVALID # INSCRIPT PARTHIAN LET ALEPH..INSCRI
10B56..10B57; UNASSIGNED # <reserved>..<reserved>
10B58..10B5F; FREE_PVAL # INSCRIPT PARTHIAN NUM ONE..INSCRIPT
10B60..10B72; PVALID # INSCRIPT PAHLAVI LET ALEPH..INSCRIP
10B73..10B77; UNASSIGNED # <reserved>..<reserved>
10B78..10B7F; FREE_PVAL # INSCRIPT PAHLAVI NUM ONE..INSCRIPT
10B80..10BFF; UNASSIGNED # <reserved>..<reserved>
10C00..10C48; PVALID # OLD TURK LET ORKHON A..OLD TURK LET
10C49..10E5F; UNASSIGNED # <reserved>..<reserved>
10E60..10E7E; FREE_PVAL # RUMI DIG ONE..RUMI FRACTION TWO THI
10E7F..10FFF; UNASSIGNED # <reserved>..<reserved>
11000..11046; PVALID # BRAHMI SIGN CANDRABINDU..BRAHMI VIR
11047..1104D; FREE_PVAL # BRAHMI DANDA..BRAHMI PUNCT LOTUS
1104E..11051; UNASSIGNED # <reserved>..<reserved>
11052..11065; FREE_PVAL # BRAHMI NUM ONE..BRAHMI NUM ONE THOU
11066..1106F; PVALID # BRAHMI DIG ZERO..BRAHMI DIG NINE
11070..1107F; UNASSIGNED # <reserved>..<reserved>
11080..110BA; PVALID # KAITHI SIGN CANDRABINDU..KAITHI SIG
110BB..110BC; FREE_PVAL # KAITHI ABBR SIGN..KAITHI ENUM SIGN
110BD ; DISALLOWED # KAITHI NUM SIGN
110BE..110C1; FREE_PVAL # KAITHI SECT MARK..KAITHI DOUBLE DAN
110C2..110CF; UNASSIGNED # <reserved>..<reserved>
110D0..110F8; PVALID # SORA SOMPENG LETTER SAH..SORA SOMPE
110F9..110EF; UNASSIGNED # <reserved>..<reserved>
110F0..110F9; PVALID # SORA SOMPENG DIG ZERO..SORA SOMPENG DI
110FA..110FF; UNASSIGNED # <reserved>..<reserved>
11100..11134; PVALID # CHAKMA SIGN CANDRABINDU..CHAKMA MAAYY
11135 ; UNASSIGNED # <reserved>
11136..1113F; PVALID # CHAKMA DIG ZERO..CHAKMA DIG NINE
11140..11143; FREE_PVAL # CHAKMA SECT MARK..CHAKMA QUEST MARK
11144..1117F; UNASSIGNED # <reserved>..<reserved>
11180..111C4; PVALID # SHARADA SIGN CANDRABINDU..SHARADA OM
111C5..111C8; FREE_PVAL # SHARADA DANDA..SHARADA SEPARATOR
111C9..111CF; UNASSIGNED # <reserved>..<reserved>
111D0..111D9; PVALID # SHARADA DIG ZERO..SHARADA DIG NINE
111DA..1167F; UNASSIGNED # <reserved>..<reserved>
11680..116B7; PVALID # TAKRI LET A..TAKRI SIGN NUKTA
116B8..116BF; UNASSIGNED # <reserved>..<reserved>
116C0..116C9; PVALID # TAKRI DIGIT ZERO..TAKRI DIG NINE
116CA..1FFFF; UNASSIGNED # <reserved>..<reserved>
12000..1236E; PVALID # CUNEI SIGN A..CUNEI SIGN ZUM
1236F..123FF; UNASSIGNED # <reserved>..<reserved>
12400..12462; FREE_PVAL # CUNEI NUM SIGN TWO ASH..CUNEI NUM
12463..1246F; UNASSIGNED # <reserved>..<reserved>
12470..12473; FREE_PVAL # CUNEI PUNCT SIGN OLD ASSYRIAN WORD
12474..12FFF; UNASSIGNED # <reserved>..<reserved>
13000..1342E; PVALID # EGYPT HIERO A001..EGYPT HIERO AA032
1342F..167FF; UNASSIGNED # <reserved>..<reserved>
16800..16A38; PVALID # BAMUM LET PHASE-A NGKUE MFON..BAMUN LE
16A39..16EFF; UNASSIGNED # <reserved>..<reserved>
16F00..16F44; PVALID # MIAO LET PA..MIAO LET HHA
16F45..16F4F; UNASSIGNED # <reserved>..<reserved>
16F50..16F7E; PVALID # MIAO LET NAS..MIAO VOWEL SIGN NG
16F7F..16F8E; UNASSIGNED # <reserved>..<reserved>
16F8F..16F9F; PVALID # MIAO TONE RIGHT..MIAO LET REF TON
16FA0..1AFFF; UNASSIGNED # <reserved>..<reserved>
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Appendix B. Acknowledgements
The authors would like to acknowledge the comments and contributions The authors would like to acknowledge the comments and contributions
of the following individuals during working group discussion: David of the following individuals during working group discussion: David
Black, Mark Davis, Alan DeKok, Martin Duerst, Patrik Faltstrom, Ted Black, Edward Burns, Dan Chiba, Mark Davis, Alan DeKok, Martin
Hardie, Joe Hildebrand, Bjoern Hoehrmann, Paul Hoffman, Jeffrey Duerst, Patrik Faltstrom, Ted Hardie, Joe Hildebrand, Bjoern
Hutzelman, Simon Josefsson, John Klensin, Alexey Melnikov, Takahiro Hoehrmann, Paul Hoffman, Jeffrey Hutzelman, Simon Josefsson, John
Nemoto, Yoav Nir, Mike Parker, Pete Resnick, Andrew Sullivan, Dave Klensin, Alexey Melnikov, Takahiro Nemoto, Yoav Nir, Mike Parker,
Thaler, Yoshiro Yoneya, and Florian Zeitz. Pete Resnick, Andrew Sullivan, Dave Thaler, Yoshiro Yoneya, and
Florian Zeitz.
Charlie Kaufman, Tom Taylor, and Tim Wicinski reviewed the document Charlie Kaufman, Tom Taylor, and Tim Wicinski reviewed the document
on behalf of the Security Directorate, the General Area Review Team, on behalf of the Security Directorate, the General Area Review Team,
and the Operations and Management Directorate, respectively. and the Operations and Management Directorate, respectively.
During IESG review, Alissa Cooper, Stephen Farrell, and Barry Leiba During IESG review, Alissa Cooper, Stephen Farrell, and Barry Leiba
provided comments that led to further improvements. provided comments that led to further improvements.
Some algorithms and textual descriptions have been borrowed from Some algorithms and textual descriptions have been borrowed from
[RFC5892]. Some text regarding security has been borrowed from [RFC5892]. Some text regarding security has been borrowed from
[RFC5890], [I-D.ietf-precis-saslprepbis], and [RFC5890], [I-D.ietf-precis-saslprepbis], and
[I-D.ietf-xmpp-6122bis]. [I-D.ietf-xmpp-6122bis].
Peter Saint-Andre wishes to acknowledge Cisco Systems, Inc., for Peter Saint-Andre wishes to acknowledge Cisco Systems, Inc., for
employing him during his work on earlier versions of this document. employing him during his work on earlier versions of this document.
Authors' Addresses Authors' Addresses
Peter Saint-Andre Peter Saint-Andre
&yet &yet
P.O. Box 787
Parker, CO 80134
USA
Email: peter@andyet.net
Email: ietf@stpeter.im
Marc Blanchet Marc Blanchet
Viagenie Viagenie
246 Aberdeen 246 Aberdeen
Quebec, QC G1R 2E1 Quebec, QC G1R 2E1
Canada Canada
Email: Marc.Blanchet@viagenie.ca Email: Marc.Blanchet@viagenie.ca
URI: http://www.viagenie.ca/ URI: http://www.viagenie.ca/
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