# US-ASCII $B$N5sF0(B

**URL:** <https://www.ruby-forum.com/t/us-ascii-b-n5sf0-b/156578>\
**Category:** Development\
**Created:** [December 30, 2008, 9:23am UTC](https://www.ruby-forum.com/t/us-ascii-b-n5sf0-b/156578 "2008-12-30T09:23:24Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![drenovac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ea666f/32.png) [@drenovac](https://www.ruby-forum.com/u/drenovac)\
**Post date:** [December 30, 2008, 9:23am UTC](https://www.ruby-forum.com/t/us-ascii-b-n5sf0-b/156578/1 "2008-12-30T09:23:24Z")

</div>

e$B\<!$N?6$kIq$$$O$$$+$,$G$7$g$&$+e(B:

> ruby -E:iso-8859-1 -e’puts "\uabcd’.encode.inspect’  
> “?”

> ruby -E:ascii-8bit -e’puts "\uabcd’.encode.inspect’  
> “?”

> ruby -E:shift\_jis -e’puts "\uabcd’.encode.inspect’  
> “?”

> ruby -E:euc-jp -e’puts "\uabcd’.encode.inspect’  
> “?”

e$B$3$3$^$G$O4|BTDL$j$G$9$,e(B

> ruby -E:us-ascii -e’puts "\uabcd’.encode.inspect’  
> “\xEA\xAF\x8D”

e$B$O$J$\<$G$7$g$&$+!#F1MM$K!"e(B

> ruby -E:iso-8859-1 -e’puts "\xFF’.force\_encoding(“UTF-8”).encode.inspect’  
> “?”

e$B0J2\<F1MM$G!"$7$+$7$b$&0lEYe(B:

> ruby -E:us-ascii -e’puts "\xFF’.force\_encoding(“UTF-8”).encode.inspect’  
> “\xFF”

e$B$h$m$7$/$\*4j$$$7$^$9!#e(B Martin.

#-#-# Martin J. Du"rst, Assoc. Professor, Aoyama Gakuin University  
#-#-# [http://www.sw.it.aoyama.ac.jp](http://www.sw.it.aoyama.ac.jp)[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)