Sophie: docbook-style-dsssl-doc-1.79-16.mga7 noarch

docbook-style-dsssl-doc-1.79-16.mga7.noarch.rpm

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>strip</H1
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><H2
>Name</H2
>strip&nbsp;--&nbsp;Strip leading and trailing characters off of a string</DIV
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>Synopsis</H2
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>(strip str #!optional (stripchars '(#\space #\
 #\U-0009)))</PRE
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><H2
>Description</H2
><P
>Strips leading and trailing characters in the <TT
CLASS="LITERAL"
>stripchars</TT
> list
off of a string and returns the stripped string.</P
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><DT
><TT
CLASS="LITERAL"
>str</TT
></DT
><DD
><P
>The string to strip</P
></DD
><DT
><TT
CLASS="LITERAL"
>stripchars</TT
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><DD
><P
>A list of characters that should
be stripped.</P
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><H2
>Author</H2
><P
>Norman Walsh, &lt;ndw@nwalsh.com&gt;</P
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>Source Code</H2
><PRE
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>(define (strip str #!optional (stripchars '(#\space #\
 #\U-0009)))
  ;; Strip leading and trailing characters off of a string
  (let* ((startpos (let loop ((count 0))
		     (if (&#62;= count (string-length str))
			 (string-length str)
			 (if (member (string-ref str count) stripchars)
			     (loop (+ count 1))
			     count))))
	 (tailstr  (substring str startpos (string-length str)))
	 (endpos   (let loop ((count (- (string-length tailstr) 1)))
		     (if (&#60; count 1)
			 0
			 (if (member (string-ref tailstr count) stripchars)
			     (loop (- count 1))
			     count)))))
    (if (or (&#60; endpos 0)
	    (string=? tailstr ""))
	""
	(substring tailstr 0 (+ endpos 1)))))</PRE
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