Code point

A code point, codepoint or code position is a unique position in a quantized n-dimensional space that has been assigned a semantic meaning.

In other words, a code point is a particular position in a table, where the position has been assigned a meaning. The table has discrete positions (1, 2, 3, 4, but not fractions) and may be one dimensional (a column), two dimensional (like cells in a spreadsheet), three dimensional (sheets in a workbook), etc... in any number of dimensions.

Code points are used in a multitude of formal information processing and telecommunication standards.[1][2] For example ITU-T Recommendation T.35[3] contains a set of country codes for telecommunications equipment (originally fax machines) which allow equipment to indicate its country of manufacture or operation. In T.35, Argentina is represented by the code point 0x07, Canada by 0x20, Gambia by 0x41, etc.

  1. ^ ETSI TS 101 773 (section 4), https://www.etsi.org/deliver/etsi_ts/101700_101799/101773/01.02.01_60/ts_101773v010201p.pdf
  2. ^ RFC4190 (section 1), https://datatracker.ietf.org/doc/html/rfc4190
  3. ^ "T.35 : Procedure for the allocation of ITU-T defined codes for non-standard facilities".

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