ISO/IEC 24824-1:2007 情報技術— ASN.1の一般的なアプリケーション：高速情報セット—パート1： | ページ 6

3.4.1

Base64

An encoding mechanism that represents an octet string value as a character string using a restricted alphabet of 65 characters (see 10.3 and IETF RFC 2045).

3.4.2

character string

A string of ISO/IEC 10646 abstract characters, without any implication on the way they are encoded.

3.4.3

encoding algorithm

A precise specification of how to efficiently encode a character string with specified characteristics into octets.

Note 1 to entry: An example is the encoding of a string such as"-32176" into a two's complement binary integer in two octets. The two-octet encoding would be accompanied by a vocabulary table index identifying this encoding algorithm.

3.4.4

external vocabulary

A set of vocabulary tables referenced by a URI (see 7.2.14).

3.4.5

fast infoset document

An XML infoset represented as specified in this Recommendation | International Standard.

3.4.6

final vocabulary

The content of the vocabulary tables at the end of the creation or of the processing of a fast infoset document.

3.4.7

information item

Each of the kinds of items that constitute an XML infoset.

3.4.8

initial vocabulary

The set of vocabulary tables established by information at the head of a fast infoset document that optionally references an external vocabulary and optionally provides additional table entries.

3.4.9

name surrogate

A set of three vocabulary table indexes (the first two optional) that are used to represent a qualified name (see 3.4.11).

3.4.10

namespace-well-formed XML document

Either a W3C XML 1.0 document that is well-formed according to W3C XML Namespaces 1.0, or a W3C XML 1.1 document that is well-formed according to W3C XML Namespaces 1.1.

3.4.11

qualified name

The set consisting of the [prefix], [namespace name], and [local name] properties of an element information item or attribute information item.

3.4.12

restricted alphabet

An ordered set of distinct ISO/IEC 10646 characters, which permits a compact encoding of any character string that consists entirely of characters from that set.

3.4.13

vocabulary table index

A positive integer value identifying an entry in a vocabulary table.

3.4.14

vocabulary tables

A set of conceptual tables (typically, but not necessarily, dynamically constructed) associated with a fast infoset document, which contain character strings or other information, and support the use of typically-small positive integer values (vocabulary table indexes) identifying their entries.

Note 1 to entry: Examples of vocabulary tables are those containing character strings that are the [local name] property of attribute or element information items, or character strings corresponding to sequences of character information items that are members of the [children] property of element information items.

3.4.15

XML declaration

The UTF-8 encoding of a specified character string (see also 12.3) that may be included at the beginning of a fast infoset document to identify the encoding as a fast infoset document and to distinguish it from a W3C XML 1.0 or W3C XML 1.1 document.

3.4.16

XML infoset

An abstract data set describing the information in a namespace-well-formed XML document, as specified in W3C XML Information Set.

3.4.17

XML whitespace

One or more of the characters HORIZONTAL TABULATION (9), LINE FEED (10), CARRIAGE RETURN (13), or SPACE (32) of Unicode.

Note 1 to entry: These characters are those that match the production"S" in both W3C XML 1.0 and W3C XML 1.1 (see W3C XML 1.0, 2.3 and W3C XML 1.1, 2.3). The characters NEXT LINE (133) and LINE SEPARATOR (8232), which may occur in a namespace-well-formed W3C XML 1.1 document (see W3C XML 1.1, 2.11), are converted to LINE FEED characters by end-of-line handling (see W3C XML 1.1, 2.11). If those characters occur in an XML infoset generated from a namespace-wellformed W3C XML 1.1 document, they are not XML whitespace.