Function

Summary

Returns the code of a character in the specified character set.

Package

external-format

Signature

char-external-code char set => code

Arguments

char

The character whose code you wish to return.

set

A character set. Legal values for set are code-page , :unicode , :latin-1 , :ascii , :jis-x-208 , :jis-x-212 , :euc-jp and :sjis , where code-page is a valid Windows code page identifier.

Values

code

The code of char in the character set set . An integer.

Description

Returns the code of the character char in the coded character set specified by set , or nil , if there is no encoding. Note that a coded character set is not the same thing as an external format.

For the set parameter, the :jis-* codes are KUTEN indexes (from the 1990 version of these standards) encoded as

(+ (* 100 row) column)

:euc-jp is the complete two-byte format encoded as

(+ (* 256 first-byte) second-byte)

:sjis is Shift-JIS encoded in the same way. Strictly speaking, EUC and Shift-JIS are not coded character sets, but encodings of the JIS sets, but the encoding is easily expressed as an integer, so the same interface to it is used.