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Talk:Strip control codes and extended characters from a string: Difference between revisions
Talk:Strip control codes and extended characters from a string (view source)
Revision as of 15:47, 20 April 2017
, 7 years agoREXX via tranaslate() issue
m (added my 2-bits on ASCII & EBCDIC. -- ~~~~) |
(REXX via tranaslate() issue) |
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:You are correct. Extended codes are not a part of the ascii standard. Also, character 127 is a control character. I have updated the task description to match. It needs a sentence added back in, about extended codes for other standards which incorporate ascii. --[[User:Rdm|Rdm]] 11:01, 25 August 2011 (UTC)
== REXX via translate()
I found this page while searching on how to remove extended ASCII codes using REXX. This helped me to get the answer but the code as presented did not remove the extended characters from even its own example here (tested on Windows and Linux, ooREXX 5.0 and 4.2 respectively).
My solution probably does not work on EBCDIC without modification but as I have no way of testing I can't say what changes would be needed.
/*REXX program strips all "control codes" from a character string (ASCII or EBCDIC). */
xxx= 'string of ☺☻♥♦⌂, may include control characters and other ilk.♫☼§►↔◄'
above = xrange('80'x,'FF'x) /* extended ASCII characters */
below = xrange('00'x,'1F'x) /* control characters */
yyy = space(translate(xxx,,below)) /* removes control characters */
zzz = space(translate(yyy,,above)) /* removes extended characters */
say 'old = »»»'xxx"«««" /*add ««fence»» before & after old text*/
say 'new = »»»'yyy"«««" /* " " " " " new " */
say 'newer = »»»'zzz"«««" /* " " " " " newer " */
/*stick a fork in it, we're all done. */
From this, I cannot see that there is any change with removing the control characters from the string specified. It could be done in one line: yyy = space(translate(translate(xxx),,below),,above))
I post this not as a "better" way but because, at least in the REXX implementation I used, the example code printed the old and new exactly the same with both printing the control characters.
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