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— | ascii [2006/08/29 20:58] (current) – created - external edit 127.0.0.1 | ||
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+ | # $EPIC: ascii.txt,v 1.2 2006/08/29 20:58:41 jnelson Exp $ | ||
+ | ======Synopsis: | ||
+ | $[[ascii]](< | ||
+ | |||
+ | ======Technical: | ||
+ | The [[ascii]] function converts a sequence of characters into a word list | ||
+ | of codepoints. | ||
+ | the codepoints are 0 to 255 (strictly 1 byte per codepoint). | ||
+ | future epic supports UTF8 or something like that, codepoints greater than | ||
+ | 255 might be returned. | ||
+ | |||
+ | You can use the [[chr]] function to convert a word list of codepoints into | ||
+ | a sequence of characters. | ||
+ | |||
+ | By definition, the [[ascii]] and [[chr]] functions are symmetrically | ||
+ | reverse operations of each other. | ||
+ | |||
+ | ======Examples: | ||
+ | < | ||
+ | /* assume iso8859-1 character set */ | ||
+ | $ascii(abcABC) | ||
+ | $chr($ascii(abcABC)) | ||
+ | </ | ||
+ | |||
+ | ======Other Notes: | ||
+ | Some characters with the high bit set will return negative numeric | ||
+ | values from $__ascii__(). | ||
+ | positive equivalent. | ||
+ | |||
ascii.txt · Last modified: 2006/08/29 20:58 by 127.0.0.1