Replace consecutive spaces in string by a single space

 

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*(Q) I have consecutive spaces between words contained within a string variable
	How can I reduce these to single spaces?

*(A) By Raynald Levesque rlevesque@videotron.ca 2002/06/3.
* http://pages.infinit.net/rlevesqu/index.htm


* Create a sample file for illustration purposes.

DATA LIST FIXED /str 1-25 (A).
BEGIN DATA
jiuhy   huji  juh
kk kk jj jj jjj  jj
k k       l   kkk  
lok kk ii   u h
   kkkk  kkkkkk
This    is    my     text
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
END DATA.
LIST.


*////////////////.
DEFINE !deldbl(vname=!TOKENS(1) /vlength=!TOKENS(1))

!LET !lookfor=!QUOTE(!BLANK(2))
STRING #tmp !CONCAT('(A',!vlength,')').
COMPUTE #tmp=LTRIM(!vname).

LOOP IF RANGE(INDEX(#tmp,"  "),1,LENGTH(RTRIM(#tmp))).
COMPUTE #tmp=CONCAT(SUBSTR(#tmp,1,INDEX(#tmp,!lookfor)),
			SUBSTR(#tmp,INDEX(#tmp,!lookfor) + 2)).
END LOOP.

COMPUTE !vname=#tmp.
!ENDDEFINE.
*////////////////.


SET MPRINT=yes.
!deldbl vname=str vlength=25.
SET MPRINT=no.
EXECUTE.
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