This International Standard defines the followings.<\/p>\n
A reference comparison method. This method is applicable to two character strings to determine their collating order in a sorted list. The method can be applied to strings containing characters from the full repertoire of ISO\/IEC 10646. This method is also applicable to subsets of that repertoire, such as those of the different ISO\/IEC 8-bit standard character sets, or any other character set, standardised or not, to produce ordering results valid (after tailoring) for a given set of languages for each script. This method uses collation tables derived either from the Common Template Table defined in this International Standard or from one of its tailorings. This method provides a reference format. The format is described using the Backus-Naur Form (BNF). This format is used to describe the Common Template Table. The format is used normatively within<\/i> this International Standard.<\/p>\n<\/li>\n A Common Template Table. A given tailoring of the Common Template Table is used by the reference comparison method. The Common Template Table describes an order for all characters encoded in ISO\/IEC 10646:2003 up to Amendment 4. It allows for a specification of a fully deterministic ordering. This table enables the specification of a string ordering adapted to local ordering rules, without requiring an implementer to have knowledge of all the different scripts already encoded in the UCS.<\/p>\n<\/li>\n<\/ul>\n NOTE 1 This Common Template Table is to be modified to suit the needs of a local environment. The main worldwide benefit is that, for other scripts, often no modification is required and the order will remain as consistent as possible and predictable from an international point of view.<\/p>\n NOTE 2 The character repertoire used in this International Standard is equivalent to that of the Unicode Standard version 5.1.<\/p>\n<\/blockquote>\n A reference name. The reference name refers to this particular version of the Common Template Table, for use as a reference when tailoring. In particular, this name implies that the table is linked to a particular stage of development of the ISO\/IEC 10646 Universal multiple-octet coded character set.<\/p>\n<\/li>\n Requirements for a declaration of the differences (delta) between the collation table and the Common Template Table.<\/p>\n<\/li>\n<\/ul>\n This International Standard does not<\/i> mandate the following.<\/p>\n A specific comparison method; any equivalent method giving the same results is acceptable.<\/p>\n<\/li>\n A specific format for describing or tailoring tables in a given implementation.<\/p>\n<\/li>\n Specific symbols to be used by implementations, except for the name of the Common Template Table.<\/p>\n<\/li>\n Any specific user interface for choosing options.<\/p>\n<\/li>\n Any specific internal format for intermediate keys used when comparing, nor for the table used. The use of numeric keys is not mandated either.<\/p>\n<\/li>\n A context-dependent ordering.<\/p>\n<\/li>\n Any particular preparation of character strings prior to comparison.<\/p>\n<\/li>\n<\/ul>\n NOTE 1 It is normally necessary to do preparation of character strings prior to comparison even if it is not prescribed by this International Standard (see Annex C).<\/p>\n NOTE 2 Although no user interface is required to choose options or to specify tailoring of the Common Template Table, conformance requires always declaring the applicable delta, a declaration of differences with this table. It is recommended that processes present available tailoring options to users.<\/p>\n<\/blockquote>\n Information technology. International string ordering and comparison. Method for comparing character strings and description of the common template tailorable ordering<\/b><\/p>\n\n
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PDF Catalog<\/h4>\n
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\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 9<\/td>\n Scope <\/td>\n<\/tr>\n \n 10<\/td>\n Conformance
Normative references <\/td>\n<\/tr>\n\n 11<\/td>\n Terms and definitions <\/td>\n<\/tr>\n \n 12<\/td>\n Symbols and abbreviations
String comparison
Preparation of character strings prior to comparison <\/td>\n<\/tr>\n\n 13<\/td>\n Key building and comparison
Preliminary considerations
Assumptions
Processing properties <\/td>\n<\/tr>\n\n 14<\/td>\n Reference ordering key formation
Formation of a subkey with the \u201cforward\u201d level processing pa <\/td>\n<\/tr>\n\n 15<\/td>\n Formation of a subkey with the \u201cbackward\u201d level processing p
Formation of a subkey with the \u201cforward,position\u201d level proc
Reference comparison method for ordering character strings <\/td>\n<\/tr>\n\n 16<\/td>\n Common Template Table: formation and interpretation <\/td>\n<\/tr>\n \n 17<\/td>\n BNF syntax rules for the Common Template Table in Annex A <\/td>\n<\/tr>\n \n 19<\/td>\n Keyword usage <\/td>\n<\/tr>\n \n 20<\/td>\n Well-formedness conditions <\/td>\n<\/tr>\n \n 21<\/td>\n Interpretation of tailored tables <\/td>\n<\/tr>\n \n 22<\/td>\n Evaluation of weight tables
Conditions for considering specific table equivalences
Conditions for results to be considered equivalent
Declaration of a delta <\/td>\n<\/tr>\n\n 24<\/td>\n Name of the Common Template Table and name declaration <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" \n\n
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