Language Tags
Unicode includes 128 characters for language tags. These characters essentially mirror the 128 ASCII characters but are used to identify the subsequent text as belonging to a particular language according to BCP 47. For example, to indicate subsequent text as the variant of English as written in the United States, the initiating ‘Language Tag character’ (U+E0001) followed by the sequence ‘Tag Small Letter e’ (U+E0065), ‘Tag Small Letter n’ (U+E006E), ‘Tag Hyphen-minus’ (U+E002D), ‘Tag Small Letter u’ (U+E0075) and ‘Tag Small Letter s’ (U+E0073) would be used.
These language tag characters would not be displayed themselves. However, they would provide information for text processing or even for the display of other characters. For example the display of Unihan ideographs might substitute different glyphs if the language tags indicated Korean than if the tags indicated Japanese. Another example, might influence the display of decimal digits 0 through 9 differently depending on the language they appeared in.
The tag characters have become deprecated in Unicode 5.1 (2008).
Read more about this topic: Unicode Control Characters
Famous quotes containing the words language and/or tags:
“Please stop using the word “Negro.”... We are the only human beings in the world with fifty-seven variety of complexions who are classed together as a single racial unit. Therefore, we are really truly colored people, and that is the only name in the English language which accurately describes us.”
—Mary Church Terrell (1863–1954)
“Worry and brown desk
Stain it by infusion. There aren’t enough tags at the end,
And the grove is blind, blossoming, but we are too porous to hear it.”
—John Ashbery (b. 1927)