ISO/IEC 14651:2020 情報技術—国際的な文字列の順序付けと比較—文字列を比較する方法と一般的なテンプレートの調整可能な順序付けの説明 | ページ 6

3.1

character string

sequence of characters considered as a single object

Note 1 to entry: Note to entry: A character string to be ordered does not normally include the characters that delimit it, as for example an “end of line” control character in a text file to be sorted.

3.2

collating symbol

symbol (3.12) used to specify weights assigned to a collating element (3.4)

3.3

collation table

weighting table

mapping from collating elements (3.4) to weighting elements (3.14)

3.4

collating element

sequence of one or more characters that are considered a single entity for ordering (3.7)

3.5

delta

list of the differences between a given collation table (3.3) and another one

Note 1 to entry: The given collation table, together with a given delta, forms a new collation table.

Note 2 to entry: Unless otherwise specified in this document, the term “delta” always refers to differences from the Common Template Table as defined in this document.

3.6

level

collation level

sequence number for a subkey (3.11) in the series of subkeys forming a key

3.7

ordering

collation

process by which, given two strings, it is determined whether the first one is less than, equal to, or greater than the second one

3.8

ordering key

sequence of subkeys (3.11) used to determine an order

3.9

preparation

collation preparation

process in which given character strings (3.1) are mapped to (other) character strings before the calculation of the ordering key (3.8) for each of the strings

3.10

reference comparison method

method for establishing an order between two ordering keys (3.8)

Note 1 to entry: See Clause 6.

3.11

subkey

sequence of weights computed for a character string (3.1)

3.12

symbol

collating element (3.4)

3.13

weight

collation weight

positive integer value, used in subkeys (3.11) , reflecting the relative order of collating elements (3.4)

3.14

weighting element

list of a given number of weights sequentially ordered by level