ISO 14651

ISO/IEC 14651:2011, Information technology -- International string ordering and comparison -- Method for comparing character strings and description of the common template tailorable ordering, is an ISO Standard specifying an algorithm that can be used when comparing two strings. This comparison can be used when collating a set of strings. The standard also specifies a datafile specifying the comparison order, the Common Tailorable Template, CTT. The comparison order is supposed to be tailored for different languages (hence the CTT is regarded as a template and not a default, though the empty tailoring, not changing any weighting, is appropriate in many cases), since different languages have incompatible ordering requirements. One such tailoring is European ordering rules (EOR), which in turn is supposed to be tailored for different European languages.

The Common Tailorable Template (CTT) datafile of this ISO Standard is aligned with the Default Unicode Collation Entity Table (DUCET) datafile of the Unicode Collation Algorithm (UCA) specified in Unicode Technical Standard #10.

External links and references

ISO site, "ISO/IEC 14651:2007". ISO/IEC 14651:2007 is freely available from the ISO website
"What are the differences between the UCA and ISO 14651?"

Unicode

Code points

Characters

Special purpose	BOM Combining Grapheme Joiner Left-to-right mark / Right-to-left mark Soft hyphen Word joiner Zero-width joiner Zero-width non-joiner Zero-width space

Lists	Characters CJK Unified Ideographs Combining character Duplicate characters Numerals Scripts Spaces Symbols Halfwidth and fullwidth

Processing

Algorithms	Bi-directional text Collation ISO 14651 Equivalence Variation sequences

Comparison	BOCU-1 CESU-8 Punycode SCSU UTF-1 UTF-7 UTF-8 UTF-9/UTF-18 UTF-16/UCS-2 UTF-32/UCS-4 UTF-EBCDIC

On pairs of
code points

Usage

Related standards

Related topics

Scripts and symbols in Unicode

Common and inherited scripts	Combining marks Diacritics Punctuation Space

Modern scripts	Adlam Arabic diacritics Armenian Balinese Bamum Batak Bengali Bopomofo Braille Buhid Burmese Canadian Aboriginal Chakma Cham Cherokee CJK Unified Ideographs (Han) Cyrillic Deseret Devanagari Ge'ez Georgian Greek Gujarati Gurmukhī Hangul Hanja Hanunó'o Hebrew diacritics Hiragana Javanese Kanji Kannada Katakana Kayah Li Khmer Khudawadi Lao Latin Lepcha Limbu Lisu (Fraser) Lontara Malayalam Mandaic Meetei Mayek Mende Kikakui Miao (Pollard) Mongolian Mro N'Ko New Tai Lue Newa Ol Chiki Oriya Osage Osmanya Pahawh Hmong Pau Cin Hau Rejang Samaritan Śāradā Saurashtra Shavian Sinhala Sorang Sompeng Sundanese Sylheti Nagari Syriac Tagalog (Baybayin) Tagbanwa Tai Le Tai Tham Tai Viet Takri Tamil Telugu Thaana Thai Tibetan Tifinagh Tirhuta Vai Varang Kshiti Yi

Ancient and historic scripts	Ahom Anatolian hieroglyphs Ancient North Arabian Avestan Bassa Vah Bhaiksuki Brāhmī Carian Caucasian Albanian Coptic Cuneiform Cypriot Egyptian hieroglyphs Elbasan Glagolitic Gothic Grantha Hatran Imperial Aramaic Inscriptional Pahlavi Inscriptional Parthian Kaithi Kharosthi Khojki Linear A Linear B Lycian Lydian Mahajani Manichaean Marchen Meroitic Modi Multani Nabataean Ogham Old Hungarian Old Italic Old Permic Old Persian cuneiform Old Turkic Palmyrene 'Phags-pa Phoenician Psalter Pahlavi Runic Siddham Tangut South Arabian Ugaritic

Notational scripts	Duployan SignWriting

Symbols	Cultural, political, and religious symbols Currency Mathematical operators and symbols Phonetic symbols (including IPA) Emoji

This article is issued from Wikipedia - version of the 2/11/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.

ISO 14651

See also

External links and references